120 results on '"Müller SM"'
Search Results
2. Definition of a critical T cell threshold for prevention of GVHD after HLA non-identical PBPC transplantation in children
- Author
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Müller, SM, Schulz, AS, Reiss, UM, Schwarz, K, Schreiner, T, Wiesneth, M, Debatin, K-M, and Friedrich, W
- Published
- 1999
- Full Text
- View/download PDF
3. „Bloß nichts verpassen“
- Author
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Müller, SM, additional, Stolze, D, additional, Wegmann, E, additional, and Brand, M, additional
- Published
- 2019
- Full Text
- View/download PDF
4. Interaktion von Impulsivität und kognitiven Fähigkeiten bei der pathologischen Nutzung von sozialen Medien
- Author
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Wegmann, E, additional, Müller, SM, additional, and Brand, M, additional
- Published
- 2019
- Full Text
- View/download PDF
5. Vergleich einer patientenbasierten Osteoporoseabklärung mit dem Osteoporosescreening eines Fracture Liaison Service (FLS)
- Author
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Oberthür, S, Krempec, M, Ammon, JC, Müller, SM, Siggelkow, H, and Sehmisch, S
- Subjects
FLS ,ddc: 610 ,Sekundärfrakturen ,Osteoporose ,610 Medical sciences ,Medicine - Abstract
Fragestellung: Fragilitätsfrakturen nehmen auf Grund der demographischen Entwicklung weltweit stetig zu. Eine erlittene Fraktur bei Frauen über 50 Jahre bzw. Männern über 60 Jahre kann ein erster Hinweis für eine verminderte Knochenfestigkeit sein und ist gleichzeitig der[zum vollständigen Text gelangen Sie über die oben angegebene URL], Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2017)
- Published
- 2017
- Full Text
- View/download PDF
6. Effektivität der Blutungsprophylaxe durch Endo-Loop-Applikation vor Polypektomie gestielter Kolonpolypen mit einem Durchmesser von >=2cm
- Author
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Stergiou, N, Müller, SM, Ander, N, and Klump, M
- Published
- 2024
- Full Text
- View/download PDF
7. Estimating the reproducibility of psychological science
- Author
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Aarts, A, Anderson, J, Anderson, C, Attridge, P, Attwood, A, Axt, J, Babel, M, Bahník, Š, Baranski, E, Barnett Cowan, M, Bartmess, E, Beer, J, Bell, R, Bentley, H, Beyan, L, Binion, G, Borsboom, D, Bosch, A, Bosco, F, Bowman, S, Brandt, M, Braswell, E, Brohmer, H, Brown, B, Brown, K, Brüning, J, Calhoun Sauls, A, Callahan, S, Chagnon, E, Chandler, J, Chartier, C, Cheung, C, Cd, Cillessen, L, Clay, R, Cleary, H, Cloud, M, Cohn, M, Cohoon, J, Columbus, S, Cordes, A, Costantini, G, Cramblet Alvarez, L, Cremata, E, Crusius, J, Decoster, J, Degaetano, M, Della Penna, N, den Bezemer, B, Deserno, M, Devitt, O, Dewitte, L, Dobolyi, D, Dodson, G, Donnellan, M, Donohue, R, Dore, R, Dorrough, A, Dreber, A, Dugas, M, Dunn, E, Easey, K, Eboigbe, S, Eggleston, C, Embley, J, Epskamp, S, Errington, T, Estel, V, Farach, F, Feather, J, Fedor, A, Fernández Castilla, B, Fiedler, S, Field, J, Fitneva, S, Flagan, T, Forest, A, Forsell, E, Foster, J, Frank, M, Frazier, R, Fuchs, H, Gable, P, Galak, J, Galliani, E, Gampa, A, Garcia, S, Gazarian, D, Gilbert, E, Giner Sorolla, R, Glöckner, A, Goellner, L, Goh, J, Goldberg, R, Goodbourn, P, Gordon McKeon, S, Gorges, B, Gorges, J, Goss, J, Graham, J, Grange, J, Gray, J, Hartgerink, C, Hartshorne, J, Hasselman, F, Hayes, T, Heikensten, E, Henninger, F, Hodsoll, J, Holubar, T, Hoogendoorn, G, Humphries, D, Hung, C, Immelman, N, Irsik, V, Jahn, G, Jäkel, F, Jekel, M, Johannesson, M, Johnson, L, Johnson, D, Johnson, K, Johnston, W, Jonas, K, Joy Gaba, J, Kappes, H, Kelso, K, Kidwell, M, Kim, S, Kirkhart, M, Kleinberg, B, Kneževic, G, Kolorz, F, Kossakowski, J, Krause, R, Krijnen, J, Kuhlmann, T, Kunkels, Y, Kyc, M, Lai, C, Laique, A, Lakens, D, Lane, K, Lassetter, B, Lazarevic, L, Lebel, E, Lee, K, Lee, M, Lemm, K, Levitan, C, Lewis, M, Lin, L, Lin, S, Lippold, M, Loureiro, D, Luteijn, I, Mackinnon, S, Mainard, H, Marigold, D, Martin, D, Martinez, T, Masicampo, E, Matacotta, J, Mathur, M, May, M, Mechin, N, Mehta, P, Meixner, J, Melinger, A, Miller, J, Miller, M, Moore, K, Möschl, M, Motyl, M, Müller, S, Munafo, M, Neijenhuijs, K, Nervi, T, Nicolas, G, Nilsonne, G, Nosek, B, Nuijten, M, Olsson, C, Osborne, C, Ostkamp, L, Pavel, M, Penton Voak, I, Perna, O, Pernet, C, Perugini, M, Pipitone, N, Pitts, M, Plessow, F, Prenoveau, J, Rahal, R, Ratliff, K, Reinhard, D, Renkewitz, F, Ricker, A, Rigney, A, Rivers, A, Roebke, M, Rutchick, A, Ryan, R, Sahin, O, Saide, A, Sandstrom, G, Santos, D, Saxe, R, Schlegelmilch, R, Schmidt, K, Scholz, S, Seibel, L, Selterman, D, Shaki, S, Simpson, E, Sinclair, H, Skorinko, J, Slowik, A, Snyder, J, Soderberg, C, Sonnleitner, C, Spencer, N, Spies, J, Steegen, S, Stieger, S, Strohminger, N, Sullivan, G, Talhelm, T, Tapia, M, te Dorsthorst, A, Thomae, M, Thomas, S, Tio, P, Traets, F, Tsang, S, Tuerlinckx, F, Turchan, P, Valášek, M, van 't Veer, A, Van Aert, R, van Assen, M, van Bork, R, van de Ven, M, van den Bergh, D, van der Hulst, M, van Dooren, R, van Doorn, J, van Renswoude, D, van Rijn, H, Vanpaemel, W, Vásquez Echeverría, A, Vazquez, M, Velez, N, Vermue, M, Verschoor, M, Vianello, M, Voracek, M, Vuu, G, Wagenmakers, E, Weerdmeester, J, Welsh, A, Westgate, E, Wissink, J, Wood, M, Woods, A, Wright, E, Wu, S, Zeelenberg, M, Zuni, K, Aarts, AA, Anderson, JE, Anderson, CJ, Attridge, PR, Bosco, FA, Bowman, SD, Brandt, MJ, Brown, BT, Callahan, SP, Chartier, CR, Cheung, Christopherson, CD, Cloud, MD, COSTANTINI, GIULIO, Cramblet Alvarez, LD, DeCoster, J, DeGaetano, MA, Deserno, MK, Dobolyi, DG, Dodson, GT, Donnellan, MB, Dore, RA, Dunn, EW, Errington, TM, Farach, FJ, Field, JG, Fitneva, SA, Forest, AL, Foster, JD, Frank, MC, Frazier, RS, Galliani, EM, Goh, JX, Goodbourn, PT, Grange, JA, Humphries, DJ, Hung, COY, Irsik, VC, Johnson, LG, Johnson, DJ, Johnson, KM, Johnston, WJ, Joy Gaba, JA, Kappes, HB, Kidwell, MC, Kim, SK, Kolorz, FM, Kossakowski, JJ, Krause, RM, Kunkels, YK, Kyc, MM, Lai, CK, Lane, KA, Lazarevic, LB, LeBel, EP, Lee, KJ, Levitan, CA, Lin, Lin, Mainard, HN, Marigold, DC, Martin, DP, Masicampo, EJ, Miller, JK, Möschl,M, Müller, SM, Neijenhuijs, KI, Nosek, BA, Nuijten, MB, Penton Voak, IS, PERUGINI, MARCO, Prenoveau, JM, Rahal, RM, Ratliff, KA, Ricker, AA, Rivers, AM, Rutchick, AM, Ryan, RS, Sandstrom, GM, Selterman, DF, Simpson, EB, Sinclair, HC, Skorinko, JLM, Snyder, JS, Spies, JR, Sullivan, GB, Thomas, SL, van 't Veer, AE, van Renswoude, DR, Wagenmakers, EJ, Westgate, EC, Zuni, K., Aarts, A, Anderson, J, Anderson, C, Attridge, P, Attwood, A, Axt, J, Babel, M, Bahník, Š, Baranski, E, Barnett Cowan, M, Bartmess, E, Beer, J, Bell, R, Bentley, H, Beyan, L, Binion, G, Borsboom, D, Bosch, A, Bosco, F, Bowman, S, Brandt, M, Braswell, E, Brohmer, H, Brown, B, Brown, K, Brüning, J, Calhoun Sauls, A, Callahan, S, Chagnon, E, Chandler, J, Chartier, C, Cheung, C, Cd, Cillessen, L, Clay, R, Cleary, H, Cloud, M, Cohn, M, Cohoon, J, Columbus, S, Cordes, A, Costantini, G, Cramblet Alvarez, L, Cremata, E, Crusius, J, Decoster, J, Degaetano, M, Della Penna, N, den Bezemer, B, Deserno, M, Devitt, O, Dewitte, L, Dobolyi, D, Dodson, G, Donnellan, M, Donohue, R, Dore, R, Dorrough, A, Dreber, A, Dugas, M, Dunn, E, Easey, K, Eboigbe, S, Eggleston, C, Embley, J, Epskamp, S, Errington, T, Estel, V, Farach, F, Feather, J, Fedor, A, Fernández Castilla, B, Fiedler, S, Field, J, Fitneva, S, Flagan, T, Forest, A, Forsell, E, Foster, J, Frank, M, Frazier, R, Fuchs, H, Gable, P, Galak, J, Galliani, E, Gampa, A, Garcia, S, Gazarian, D, Gilbert, E, Giner Sorolla, R, Glöckner, A, Goellner, L, Goh, J, Goldberg, R, Goodbourn, P, Gordon McKeon, S, Gorges, B, Gorges, J, Goss, J, Graham, J, Grange, J, Gray, J, Hartgerink, C, Hartshorne, J, Hasselman, F, Hayes, T, Heikensten, E, Henninger, F, Hodsoll, J, Holubar, T, Hoogendoorn, G, Humphries, D, Hung, C, Immelman, N, Irsik, V, Jahn, G, Jäkel, F, Jekel, M, Johannesson, M, Johnson, L, Johnson, D, Johnson, K, Johnston, W, Jonas, K, Joy Gaba, J, Kappes, H, Kelso, K, Kidwell, M, Kim, S, Kirkhart, M, Kleinberg, B, Kneževic, G, Kolorz, F, Kossakowski, J, Krause, R, Krijnen, J, Kuhlmann, T, Kunkels, Y, Kyc, M, Lai, C, Laique, A, Lakens, D, Lane, K, Lassetter, B, Lazarevic, L, Lebel, E, Lee, K, Lee, M, Lemm, K, Levitan, C, Lewis, M, Lin, L, Lin, S, Lippold, M, Loureiro, D, Luteijn, I, Mackinnon, S, Mainard, H, Marigold, D, Martin, D, Martinez, T, Masicampo, E, Matacotta, J, Mathur, M, May, M, Mechin, N, Mehta, P, Meixner, J, Melinger, A, Miller, J, Miller, M, Moore, K, Möschl, M, Motyl, M, Müller, S, Munafo, M, Neijenhuijs, K, Nervi, T, Nicolas, G, Nilsonne, G, Nosek, B, Nuijten, M, Olsson, C, Osborne, C, Ostkamp, L, Pavel, M, Penton Voak, I, Perna, O, Pernet, C, Perugini, M, Pipitone, N, Pitts, M, Plessow, F, Prenoveau, J, Rahal, R, Ratliff, K, Reinhard, D, Renkewitz, F, Ricker, A, Rigney, A, Rivers, A, Roebke, M, Rutchick, A, Ryan, R, Sahin, O, Saide, A, Sandstrom, G, Santos, D, Saxe, R, Schlegelmilch, R, Schmidt, K, Scholz, S, Seibel, L, Selterman, D, Shaki, S, Simpson, E, Sinclair, H, Skorinko, J, Slowik, A, Snyder, J, Soderberg, C, Sonnleitner, C, Spencer, N, Spies, J, Steegen, S, Stieger, S, Strohminger, N, Sullivan, G, Talhelm, T, Tapia, M, te Dorsthorst, A, Thomae, M, Thomas, S, Tio, P, Traets, F, Tsang, S, Tuerlinckx, F, Turchan, P, Valášek, M, van 't Veer, A, Van Aert, R, van Assen, M, van Bork, R, van de Ven, M, van den Bergh, D, van der Hulst, M, van Dooren, R, van Doorn, J, van Renswoude, D, van Rijn, H, Vanpaemel, W, Vásquez Echeverría, A, Vazquez, M, Velez, N, Vermue, M, Verschoor, M, Vianello, M, Voracek, M, Vuu, G, Wagenmakers, E, Weerdmeester, J, Welsh, A, Westgate, E, Wissink, J, Wood, M, Woods, A, Wright, E, Wu, S, Zeelenberg, M, Zuni, K, Aarts, AA, Anderson, JE, Anderson, CJ, Attridge, PR, Bosco, FA, Bowman, SD, Brandt, MJ, Brown, BT, Callahan, SP, Chartier, CR, Cheung, Christopherson, CD, Cloud, MD, COSTANTINI, GIULIO, Cramblet Alvarez, LD, DeCoster, J, DeGaetano, MA, Deserno, MK, Dobolyi, DG, Dodson, GT, Donnellan, MB, Dore, RA, Dunn, EW, Errington, TM, Farach, FJ, Field, JG, Fitneva, SA, Forest, AL, Foster, JD, Frank, MC, Frazier, RS, Galliani, EM, Goh, JX, Goodbourn, PT, Grange, JA, Humphries, DJ, Hung, COY, Irsik, VC, Johnson, LG, Johnson, DJ, Johnson, KM, Johnston, WJ, Joy Gaba, JA, Kappes, HB, Kidwell, MC, Kim, SK, Kolorz, FM, Kossakowski, JJ, Krause, RM, Kunkels, YK, Kyc, MM, Lai, CK, Lane, KA, Lazarevic, LB, LeBel, EP, Lee, KJ, Levitan, CA, Lin, Lin, Mainard, HN, Marigold, DC, Martin, DP, Masicampo, EJ, Miller, JK, Möschl,M, Müller, SM, Neijenhuijs, KI, Nosek, BA, Nuijten, MB, Penton Voak, IS, PERUGINI, MARCO, Prenoveau, JM, Rahal, RM, Ratliff, KA, Ricker, AA, Rivers, AM, Rutchick, AM, Ryan, RS, Sandstrom, GM, Selterman, DF, Simpson, EB, Sinclair, HC, Skorinko, JLM, Snyder, JS, Spies, JR, Sullivan, GB, Thomas, SL, van 't Veer, AE, van Renswoude, DR, Wagenmakers, EJ, Westgate, EC, and Zuni, K.
- Abstract
Reproducibility is a defining feature of science, but the extent to which it characterizes current research is unknown. We conducted replications of 100 experimental and correlational studies published in three psychology journals using high-powered designs and original materials when available. Replication effects were half the magnitude of original effects, representing a substantial decline. Ninety-seven percent of original studies had statistically significant results. Thirty-six percent of replications had statistically significant results; 47% of original effect sizes were in the 95% confidence interval of the replication effect size; 39% of effects were subjectively rated to have replicated the original result; and if no bias in original results is assumed, combining original and replication results left 68% with statistically significant effects. Correlational tests suggest that replication success was better predicted by the strength of original evidence than by characteristics of the original and replication teams.
- Published
- 2015
8. The reproducibility project: A model of large-scale collaboration for empirical research on reproducibility
- Author
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Stodden, V, Leisch, F, Peng, RD, Aarts, A, Alexander, A, Attridge, P, Bahník, Š, Barnett Cowan, M, Bartmess, E, Bosco, F, Brown, B, Brown, K, Chandler, J, Clay, R, Cleary, H, Cohn, M, Costantini, G, Crusius, J, Decoster, J, Degaetano, M, Donohue, R, Dunn, E, Eggleston, C, Estel, V, Farach, F, Fiedler, S, Field, J, Fitneva, S, Foster, J, Frazier, R, Galliani, E, Giner Sorolla, R, Goss, R, Graham, J, Grange, J, Hartshorne, J, Hayes, T, Hicks, G, Humphries, D, Jahn, G, Johnson, K, Joy Gaba, J, Goellner, L, Kappes, E, Lai, C, Lakens, D, Lane, K, Lebel, E, Lee, M, Lemm, K, Lewis, M, Lin, S, Mackinnon, S, Mainard, H, Mann, M, May, M, Motyl, M, Moore, K, Müller, S, Nosek, B, Olsson, C, Perugini, M, Pitts, M, Ratliff, K, Renkewitz, F, Rutchick, A, Sandstrom, G, Selterman, D, Simpson, W, Smith, C, Spies, J, Talhelm, T, van 't Veer, A, Vianello, M, Aarts, AA, Bosco, FA, Chandler, JJ, DeCoster, J, DeGaetano, M, Farach, FJ, Field, JG, Fitneva, S., Foster, JD, Frazier, RS, Galliani, EM, Goss, RJ, Grange, JA, Hayes, TB, Joy Gaba, JA, Kappes, EB, Lai, CK, Lane, KA, LeBel, EP, Lin, SC, Müller, SM, Nosek, BA, Rutchick, AM, Smith, CT, Spies, JR, Vianello, M., COSTANTINI, GIULIO, PERUGINI, MARCO, Stodden, V, Leisch, F, Peng, RD, Aarts, A, Alexander, A, Attridge, P, Bahník, Š, Barnett Cowan, M, Bartmess, E, Bosco, F, Brown, B, Brown, K, Chandler, J, Clay, R, Cleary, H, Cohn, M, Costantini, G, Crusius, J, Decoster, J, Degaetano, M, Donohue, R, Dunn, E, Eggleston, C, Estel, V, Farach, F, Fiedler, S, Field, J, Fitneva, S, Foster, J, Frazier, R, Galliani, E, Giner Sorolla, R, Goss, R, Graham, J, Grange, J, Hartshorne, J, Hayes, T, Hicks, G, Humphries, D, Jahn, G, Johnson, K, Joy Gaba, J, Goellner, L, Kappes, E, Lai, C, Lakens, D, Lane, K, Lebel, E, Lee, M, Lemm, K, Lewis, M, Lin, S, Mackinnon, S, Mainard, H, Mann, M, May, M, Motyl, M, Moore, K, Müller, S, Nosek, B, Olsson, C, Perugini, M, Pitts, M, Ratliff, K, Renkewitz, F, Rutchick, A, Sandstrom, G, Selterman, D, Simpson, W, Smith, C, Spies, J, Talhelm, T, van 't Veer, A, Vianello, M, Aarts, AA, Bosco, FA, Chandler, JJ, DeCoster, J, DeGaetano, M, Farach, FJ, Field, JG, Fitneva, S., Foster, JD, Frazier, RS, Galliani, EM, Goss, RJ, Grange, JA, Hayes, TB, Joy Gaba, JA, Kappes, EB, Lai, CK, Lane, KA, LeBel, EP, Lin, SC, Müller, SM, Nosek, BA, Rutchick, AM, Smith, CT, Spies, JR, Vianello, M., COSTANTINI, GIULIO, and PERUGINI, MARCO
- Abstract
The goal of science is to accumulate knowledge that answers questions such as “How do things work?” and “Why do they work that way?” Scientists use a variety of methodologies to describe, predict, and explain natural phenomena. These methods are so diverse that it is difficult to define a unique scientific method, although all scientific methodologies share the assumption of reproducibility (Hempel and Oppenheim, 1948; Kuhn, 1962; Popper, 1934/1992; Salmon, 1989).
- Published
- 2014
9. mRNA electroporation of PBMC is a rapid and efficient method for immunomonitoring of T-cell responses against autologous HIV-1 strains
- Author
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Etschel, J, Maurer, K, Hofmann, C, Eismann, K, Bergmann, S, Dörrje, J, Schaft, N, Müller, SM, Harrer, T, Kompetenznetzwerk HIV/AIDS, Etschel, J, Maurer, K, Hofmann, C, Eismann, K, Bergmann, S, Dörrje, J, Schaft, N, Müller, SM, Harrer, T, and Kompetenznetzwerk HIV/AIDS
- Published
- 2010
10. Analysis of HIV-1-specific CTL cross-reacting with Influenza A virus in a cohort of HIV-1 infected patients
- Author
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Hückelhoven, A, Bergmann, S, Eismann, K, Müller, SM, Etschel, J, Harrer, EG, Harrer, T, Kompetenznetzwerk HIV/AIDS, Hückelhoven, A, Bergmann, S, Eismann, K, Müller, SM, Etschel, J, Harrer, EG, Harrer, T, and Kompetenznetzwerk HIV/AIDS
- Published
- 2010
11. Prozessoptimierung durch klinische Behandlungspfade am Beispiel der endoskopischen Polypektomie großer Colonadenome
- Author
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Stergiou, N, primary, Müller, SM, additional, Jonczyk, C, additional, and Klump, M, additional
- Published
- 2009
- Full Text
- View/download PDF
12. Anleitung zum Suizid im Internet eine Rizinusintoxikation
- Author
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Müller, SM, primary, Mehlig, A, additional, and Zimmerli, W, additional
- Published
- 2009
- Full Text
- View/download PDF
13. Effektivität der Blutungsprophylaxe durch Endo-Loop-Applikation vor Polypektomie gestielter Kolonpolypen mit einem Durchmesser von >=2cm
- Author
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Stergiou, N, primary, Müller, SM, additional, Ander, N, additional, and Klump, M, additional
- Published
- 2006
- Full Text
- View/download PDF
14. Ileusdiagnostik in der MRT
- Author
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Roth, B, primary, Schipp, AS, additional, Müller, SM, additional, Noeldge, GN, additional, Kauffmann, GK, additional, and Hansmann, JH, additional
- Published
- 2004
- Full Text
- View/download PDF
15. The Reproducibility Project: A model of large-scale collaboration for empirical research on reproducibility
- Author
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Aarts, Aa, Alexander, A., Attridge, P., Bahník, Š, Barnett-Cowan, M., Bartmess, E., Bosco, Fa, Brown, B., Brown, K., Chandler, Jj, Clay, R., Cleary, H., Cohn, M., Costantini, G., Jan Crusius, Decoster, J., Degaetano, M., Donohue, R., Dunn, E., Eggleston, C., Estel, V., Farach, Fj, Fiedler, S., Field, Jg, Fitneva, S., Foster, Jd, Frazier, Rs, Galliani, Em, Giner-Sorolla, R., Goss, Rj, Graham, J., Grange, Ja, Hartshorne, J., Hayes, Tb, Hicks, G., Humphries, D., Jahn, G., Johnson, K., Joy-Gaba, Ja, Goellner, L., Kappes, Eb, Lai, Ck, Lakens, D., Lane, Ka, Lebel, Ep, Lee, M., Lemm, K., Lewis, M., Lin, Sc, Mackinnon, S., Mainard, H., Mann, M., May, M., Motyl, M., Moore, K., Müller, Sm, Nosek, Ba, Olsson, C., Perugini, M., Pitts, M., Ratliff, K., Renkewitz, F., Rutchick, Am, Sandstrom, G., Selterman, D., Simpson, W., Smith, Ct, Spies, Jr, Talhelm, T., T Veer, A., Vianello, M., Stodden, V, Leisch, F, Peng, RD, Aarts, A, Alexander, A, Attridge, P, Bahník, Š, Barnett Cowan, M, Bartmess, E, Bosco, F, Brown, B, Brown, K, Chandler, J, Clay, R, Cleary, H, Cohn, M, Costantini, G, Crusius, J, Decoster, J, Degaetano, M, Donohue, R, Dunn, E, Eggleston, C, Estel, V, Farach, F, Fiedler, S, Field, J, Fitneva, S, Foster, J, Frazier, R, Galliani, E, Giner Sorolla, R, Goss, R, Graham, J, Grange, J, Hartshorne, J, Hayes, T, Hicks, G, Humphries, D, Jahn, G, Johnson, K, Joy Gaba, J, Goellner, L, Kappes, E, Lai, C, Lakens, D, Lane, K, Lebel, E, Lee, M, Lemm, K, Lewis, M, Lin, S, Mackinnon, S, Mainard, H, Mann, M, May, M, Motyl, M, Moore, K, Müller, S, Nosek, B, Olsson, C, Perugini, M, Pitts, M, Ratliff, K, Renkewitz, F, Rutchick, A, Sandstrom, G, Selterman, D, Simpson, W, Smith, C, Spies, J, Talhelm, T, van 't Veer, A, and Vianello, M
- Subjects
Open Science, collaboration, reproducibility, replication, methodology - Abstract
The goal of science is to accumulate knowledge that answers questions such as “How do things work?” and “Why do they work that way?” Scientists use a variety of methodologies to describe, predict, and explain natural phenomena. These methods are so diverse that it is difficult to define a unique scientific method, although all scientific methodologies share the assumption of reproducibility (Hempel and Oppenheim, 1948; Kuhn, 1962; Popper, 1934/1992; Salmon, 1989).
16. Transfer from goal-directed behavior to stimulus-response habits and its modulation by acute stress in individuals with risky gaming behavior.
- Author
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Schmid AM, Thomas TA, Blümel S, Erdal NK, Müller SM, Merz CJ, Wolf OT, Brand M, Müller A, and Steins-Loeber S
- Subjects
- Humans, Male, Young Adult, Adult, Female, Risk-Taking, Behavior, Addictive psychology, Adolescent, Goals, Stress, Psychological psychology, Habits, Reward, Cues, Video Games psychology
- Abstract
Habitual responses towards addiction-related cues play a relevant role in the development and maintenance of addictions. Such automatic responses may be more likely under stress, as stress has been shown to induce a shift from goal-directed to habitual behavior. The current study investigated these mechanisms in risky gaming behavior. Individuals with risky gaming behavior (n = 68), as established by a structured clinical interview, and a matched control group (n = 67) completed a Pavlovian-to-Instrumental Transfer (PIT) paradigm with gaming-related cues and rewards. After the Pavlovian training, participants underwent a stress (Trier Social Stress Test) or control condition before performing the instrumental training and the transfer phase of the PIT paradigm. To assess habitual behavior, the gaming-related rewards were devalued after half of the transfer phase. In both groups, gaming-related cues enhanced the choice of the gaming-related reward and this gaming PIT effect was reduced, however, not eliminated by the devaluation. Unexpectedly, stress did not significantly increase responding for the gaming-related reward in participants aware of the stimulus-outcome associations, however seemed to enhance habitual responding in unaware participants. Our findings underline the relevance of gaming-related cues in triggering habitual responses, which may undermine attempts to change a problematic gaming behavior., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
17. Permissive beliefs in the context of gaming, online shopping and alcohol drinking - Systematic development of a self-report measure.
- Author
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Brandtner A, Müller SM, Behrens S, Oelker A, and Brand M
- Subjects
- Humans, Male, Female, Adult, Young Adult, Surveys and Questionnaires, Adolescent, Middle Aged, Factor Analysis, Statistical, Reproducibility of Results, Alcohol Drinking psychology, Self Report, Video Games psychology, Psychometrics instrumentation, Psychometrics methods
- Abstract
Background: The activation of permissive beliefs is a cognitive mechanism through which individuals permit themselves to engage in pleasurable, yet potentially unregulated activities. Existing measures are heterogenous, focusing either on specific behaviors or on particular licensing mechanisms. The new Permissive Beliefs Questionnaire (PBQ) seeks to integrate self-licensing mechanisms from various research domains and to be applicable to different behaviors., Methods: Study 1 aimed at exploring the factor structure and reduce the number of items. In study 2, we used confirmatory factor analysis and tested convergent and discriminant validity in three subsamples of individuals playing videogames (n = 489), shopping online (n = 506), and drinking alcohol (n = 511). We tested the hypothesis whether individuals who experience a self-regulatory conflict show a greater expression of permissive beliefs., Results: The final version of the PBQ consists of 12 items which represent two factors: Deserving Reward and Defensive Optimism. The PBQ exhibited robust model fit indices and internal consistencies in the three samples. Permissive beliefs were heightened among individuals intending to downregulate their gaming, shopping, or drinking behaviors as compared to individuals without this intention., Conclusion: The PBQ is a valid measure of permissive beliefs for gaming, online shopping, and drinking alcohol. It serves an ecologic and psychometrically valid tool to address empirical research questions regarding the functioning of permissive beliefs. Additionally, it may be used in clinical settings to measure and raise an understanding for permissive beliefs in clients., Competing Interests: Declaration of competing interest This article is the authors' original work, has not received prior publication, is not under consideration for publication elsewhere, and if accepted, will not be published elsewhere in the same form, in English or in any other language, including electronically without the written consent of the copyright-holder., (Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)
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- 2024
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18. Validation of the ACSID-11 for consistent screening of specific Internet-use disorders based on ICD-11 criteria for gaming disorder: A multitrait-multimethod approach.
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Oelker A, Rumpf HJ, Brand M, and Müller SM
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- Humans, Male, Female, Adult, Reproducibility of Results, International Classification of Diseases, Young Adult, Behavior, Addictive diagnosis, Behavior, Addictive psychology, Behavior, Addictive classification, Middle Aged, Adolescent, Internet, Video Games psychology, Psychometrics instrumentation, Psychometrics methods, Psychiatric Status Rating Scales standards, Mass Screening methods, Mass Screening standards, Surveys and Questionnaires, Internet Addiction Disorder diagnosis, Internet Addiction Disorder psychology
- Abstract
Introduction: With the inclusion of gaming disorder in the ICD-11, diagnostic criteria were introduced for this relatively new disorder. These criteria may be applied to other potential specific Internet-use disorders. The 11-item Assessment of Criteria for Specific Internet-use Disorders (ACSID-11) was developed for consistent screening of gaming disorder, online buying-shopping disorder, online pornography-use disorder, social networks-use disorder, and online gambling disorder. This study tested the construct validity of the ACSID-11, including convergent and divergent measures., Methods: The ACSID-11 measures five behavioral addictions with the same set of items by following the principles of the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST). The ACSID-11 was administered to a convenience sample of active Internet users (N = 1597) together with validated and established measures of each specific Internet-use disorder along with screeners for mental health. Included are the Ten-Item Internet Gaming Disorder Test (IGDT-10), the Bergen Shopping Addiction Scale (BSAS), the Problematic Pornography Consumption Scale (PPCS), the Bergen Social Media Addiction Scale (BSMAS) and the Berlin Inventory of Gambling behavior - Screening (BIG-S). The ACSID-11 was compared convergently and divergently through a multitrait-multimethod approach along with contingency tables with the other Internet-use disorder screeners., Results: The multitrait-multimethod results shows that each behavior assessed with the ACSID-11 has moderate to strong correlations (r's from 0.462 to 0.609) with the scores of the corresponding established measures and, furthermore, positive correlations (r's from 0.122 to 0.434) with measures of psychological distress and further shows that the ACSID-11 can be used for a comprehensive assessment of different behaviors. The contingency tables reveal large divergences between the ACSID-11 and other screening instruments concerning the classification of problematic specific Internet use based on the given cut-off values., Conclusion: The current work provides additional validation for the ACSID-11. Accordingly, this tool can be considered as reliable and valid for the simultaneous assessment of different Internet-use disorders: gaming disorder, online buying-shopping disorder, online pornography use disorder, social networks use disorder, and online gambling disorder. With a subsequent clinical validation of the scale and the proposed cut-off score, the ACSID-11 will be a thoroughly validated useful screening tool for clinical practice., Competing Interests: Declaration of competing interest None., (Copyright © 2024. Published by Elsevier Inc.)
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- 2024
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19. Fostering healthy aging through selective nutrition: A long-term comparison of two dietary patterns and their holistic impact on mineral status in middle-aged individuals-A randomized controlled intervention trial in Germany.
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Pellowski D, Heinze T, Tuchtenhagen M, Müller SM, Meyer S, Maares M, Gerbracht C, Wernicke C, Haase H, Kipp AP, Grune T, Pfeiffer AFH, Mai K, and Schwerdtle T
- Subjects
- Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Germany, Nutritional Status, Diet, Healthy Aging blood, Minerals blood
- Abstract
Aging is associated with a decline in physiological functions and an increased risk of age-related diseases, emphasizing the importance of identifying dietary strategies for healthy aging. Minerals play a crucial role in maintaining optimal health during aging, making them relevant targets for investigation. Therefore, we aimed to analyze the effect of different dietary pattern on mineral status in the elderly. We included 502 individuals aged 50-80 years in a 36-month randomized controlled trial (RCT) (NutriAct study). This article focuses on the results within the two-year intervention period. NutriAct is not a mineral-modulating-targeted intervention study, rather examining nutrition in the context of healthy aging in general. However, mineral status might be affected in an incidental manner. Participants were assigned to either NutriAct dietary pattern (proportionate intake of total energy consumption (%E) of 35-45 %E carbohydrates, 35-40 %E fats, and 15-25 %E protein) or the German Nutrition Society (DGE) dietary pattern (proportionate intake of total energy consumption (%E) of 55 %E carbohydrates, 30 %E fats, and 15 %E protein), differing in the composition of macronutrients. Data from 368 participants regarding dietary intake (energy, calcium, magnesium, iron, and zinc) and serum mineral concentrations of calcium, magnesium, iron, copper, zinc, selenium, iodine, and manganese, free zinc, and selenoprotein P were analyzed at baseline, as well as after 12 and 24 months to gain comprehensive insight into the characteristics of the mineral status. Additionally, inflammatory status - sensitive to changes in mineral status - was assessed by measurement of C-reactive protein and interleukin-6. At baseline, inadequate dietary mineral intake and low serum concentrations of zinc and selenium were observed in both dietary patterns. Throughout two years, serum zinc concentrations decreased, while an increase of serum selenium, manganese and magnesium concentrations was observable, likely influenced by both dietary interventions. No significant changes were observed for serum calcium, iron, copper, or iodine concentrations. In conclusion, long-term dietary interventions can influence serum mineral concentrations in a middle-aged population. Our findings provide valuable insights into the associations between dietary habits, mineral status, and disease, contributing to dietary strategies for healthy aging., Competing Interests: Declaration of Competing Interest The authors declare no conflict of interest., (Copyright © 2024. Published by Elsevier GmbH.)
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- 2024
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20. Pemphigus foliaceus successfully treated with upadacitinib.
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Brandt O, Berger CT, Heijnen IAFM, Navarini AA, and Müller SM
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- 2024
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21. The Functional Roles of the Src Homology 2 Domain-Containing Inositol 5-Phosphatases SHIP1 and SHIP2 in the Pathogenesis of Human Diseases.
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Müller SM and Jücker M
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- Humans, Neoplasms metabolism, Neoplasms pathology, Animals, src Homology Domains, Signal Transduction, Inositol Polyphosphate 5-Phosphatases metabolism, Inositol Polyphosphate 5-Phosphatases genetics, Phosphatidylinositol-3,4,5-Trisphosphate 5-Phosphatases metabolism, Phosphatidylinositol-3,4,5-Trisphosphate 5-Phosphatases genetics
- Abstract
The src homology 2 domain-containing inositol 5-phosphatases SHIP1 and SHIP2 are two proteins involved in intracellular signaling pathways and have been linked to the pathogenesis of several diseases. Both protein paralogs are well known for their involvement in the formation of various kinds of cancer. SHIP1, which is expressed predominantly in hematopoietic cells, has been implicated as a tumor suppressor in leukemogenesis especially in myeloid leukemia, whereas SHIP2, which is expressed ubiquitously, has been implicated as an oncogene in a wider variety of cancer types and is suggested to be involved in the process of metastasis of carcinoma cells. However, there are numerous other diseases, such as inflammatory diseases as well as allergic responses, Alzheimer's disease, and stroke, in which SHIP1 can play a role. Moreover, SHIP2 overexpression was shown to correlate with opsismodysplasia and Alzheimer's disease, as well as metabolic diseases. The SHIP1-inhibitor 3-α-aminocholestane (3AC), and SHIP1-activators, such as AQX-435 and AQX-1125, and SHIP2-inhibitors, such as K161 and AS1949490, have been developed and partly tested in clinical trials, which indicates the importance of the SHIP-paralogs as possible targets in the therapy of those diseases. The aim of this article is to provide an overview of the current knowledge about the involvement of SHIP proteins in the pathogenesis of cancer and other human diseases and to create awareness that SHIP1 and SHIP2 are more than just tumor suppressors and oncogenes.
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- 2024
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22. A novel score to predict in-hospital mortality for patients with acute coronary syndrome and out-of-hospital cardiac arrest: the FACTOR study.
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Schweiger V, Hiller P, Utters R, Fenice A, Cammann VL, Di Vece D, Rajman K, Candreva A, Gotschy A, Gilhofer T, Würdinger M, Stähli BE, Seifert B, Müller SM, Templin C, and Stehli J
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- Humans, Female, Middle Aged, Aged, Hospital Mortality, Prognosis, Hospitalization, Out-of-Hospital Cardiac Arrest diagnosis, Out-of-Hospital Cardiac Arrest therapy, Acute Coronary Syndrome diagnosis, Acute Coronary Syndrome therapy, Cardiopulmonary Resuscitation
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Introduction: Acute coronary syndromes (ACS) represent a substantial global healthcare challenge. In its most severe form, it can lead to out-of-hospital cardiac arrest (OHCA). Despite medical advancements, survival rates in OHCA patients remain low. Further, the prediction of outcomes in these patients poses a challenge to all health care providers involved. This study aims at developing a score with variables available on admission to assess in-hospital mortality of patients with OHCA undergoing coronary angiography., Method: All patients with OHCA due to ACS admitted to a tertiary care center were included. A multivariate logistic regression analysis was conducted to explore the association between clinical variables and in-hospital all-cause mortality. A scoring system incorporating variables available upon admission to assess individual patients' risk of in-hospital mortality was developed (FACTOR score). The score was then validated., Results: A total of 291 patients were included in the study, with a median age of 65 [56-73] years, including 47 women (16.2%). The in-hospital mortality rate was 41.2%. A prognostic model was developed in the derivation cohort (n = 138) and included the following variables: age, downtime, first detected rhythm, and administration of epinephrine. The area under the curve for the FACTOR score was 0.823 (95% CI 0.737-0.894) in the derivation cohort and 0.828 (0.760-0.891) in the validation cohort (n = 153)., Conclusion: The FACTOR score demonstrated a reliable prognostic tool for health care providers in assessing in-hospital mortality of OHCA patients. Early acknowledgement of a poor prognosis may help in patient management and allocation of resources., (© 2024. The Author(s).)
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- 2024
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23. Periocular hypopigmentation of the elderly (POHE): A case series.
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Mildner LS, Zhu J, Navarini AA, Itin P, Mühleisen B, and Müller SM
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- Humans, Aged, Hypopigmentation diagnosis, Hypopigmentation etiology, Vitiligo, Albinism, Oculocutaneous
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- 2024
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24. The Pink Doughnut Sign-A Clinical Clue to Recognize Basal Cell Carcinoma Presenting as Chronic Leg Ulcer.
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Madanchi M, Müller A, Zehnder ML, and Müller SM
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Chronic lower leg ulcers (LLUs) are a very common and associated with a high subjective and economic burden. They can be caused by a variety of factors. We have observed a common clinical feature in patients suffering from LLUs, which ultimately proved to be basal cell carcinomas (BCCs). We have nicknamed this sign "the pink doughnut sign." The pink doughnut sign can aid in the early recognition of such BCCs, which is crucial to prevent unnecessary suffering, treatment costs, and poor local outcomes., Competing Interests: Declaration of Conflicting InterestsThe authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
- Published
- 2023
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25. A systematic review and meta-analysis of risky decision-making in specific domains of problematic use of the internet: Evidence across different decision-making tasks.
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Müller SM, Antons S, Wegmann E, Ioannidis K, King DL, Potenza MN, Chamberlain SR, and Brand M
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- Humans, Male, Internet, Gambling, Behavior, Addictive, Video Games
- Abstract
This systematic review summarizes empirical evidence on risky decision-making (objective risk and ambiguity) in specific domains of problematic use of the internet (PUI) focusing on online addictive behaviors. We conducted a pre-registered (PROSPERO: CRD42020188452) PubMed search for PUI domains: gaming, social-network use, online buying-shopping, online pornography use, and unspecified PUI. We used the Newcastle-Ottawa Scale for quality assessment. Relevant studies were identified only for gaming (n = 19), social-network use (n = 8), unspecified PUI (n = 7), and online gambling (n = 1). The meta-analyses included 25 studies (2498 participants) comparing PUI and control groups regarding decision-making performance under objective risk and ambiguity. Across PUI domains, individuals with PUI compared to control participants showed more disadvantageous decision-making in measures of objective risk (g = -0.42 [-0.69, -0.16], p = .002) but not ambiguity (g = -0.22 [-0.47, -0.04], p = .096). PUI domain and gender were significant moderators. In the risk domain, effects were particularly present in gaming disorder, especially in exclusively male samples. Overall, the paucity of empirical studies in the considered area necessitates further research to identify probable gender- and disorder-specific cognitive relationships., Competing Interests: Competing interests SMM, EW, KI, MNP, SRC, and MB are (co-)authors of studies (n = 8) included in this review. MB, KI, and SRC are members of the “European Network for Problematic Usage of the Internet” (CA16207) supported by COST (European Cooperation in Science and Technology). KI and SRC receive honoraria from Elsevier for editorial work at Comprehensive Psychiatry (KI & SRC), and Neuroscience & Biobehavioral Reviews (SRC) journals. MNP has consulted for Opiant Pharmaceuticals, Idorsia Pharmaceuticals, AXA, Game Day Data, Baria-Tek and the Addiction Policy Forum; has been involved in a patent application with Yale University and Novartis; has received research support (to Yale) from Mohegan Sun Casino, Children and Screens and the Connecticut Council on Problem Gambling; has participated in surveys, mailings or telephone consultations related to drug addiction, impulse-control disorders or other health topics; has consulted for and/or advised gambling, non-profit and legal entities on issues related to internet-use/impulse-control/addictive disorders/behaviors; has performed grant reviews for research-funding agencies; has edited journals and journal sections; has given academic lectures in grand rounds, CME events and other clinical or scientific venues; and has generated books or book chapters for publishers of mental health texts., (Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2023
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26. Cue-reactivity to distal cues in individuals at risk for gaming disorder.
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Diers M, Müller SM, Mallon L, Schmid AM, Thomas TA, Klein L, Krikova K, Stark R, Wegmann E, Steins-Loeber S, Brand M, and Antons S
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- Humans, Cues, Craving physiology, Oligopeptides, Magnetic Resonance Imaging methods, Video Games adverse effects, Behavior, Addictive diagnosis
- Abstract
Background: Gaming disorder (GD) is a disorder due to addictive behaviors (ICD-11). Cue-reactivity and craving are relevant mechanisms in the development and maintenance of addictive behaviors. When confronted with cues showing in-game content (proximal cues) individuals with higher symptom severity show increased cue-reactivity. Based on conditioning and addiction theories on incentive sensitization, cue-reactivity responses may generalize to more distal cues, e.g. when individuals at risk of developing a GD are confronted with a starting page of an online game. In cue-reactivity paradigms so far, only proximal gaming cues have been used., Methods: We investigated the effect of distal gaming cues compared to gaming-unrelated control cues on cue-reactivity and craving in 88 individuals with non-problematic use of online games (nPGU) and 69 individuals at risk for GD (rGD). The distal cues showed the use of an electronic device (e.g., desktop PC or smartphone) whose screen showed starting pages of either games (target cues), shopping- or pornography sites (control cues) from a first-person perspective., Findings: We found significantly higher urge and arousal ratings as well as longer viewing times for gaming-related compared to gaming-unrelated control cues in rGD compared to nPGU. Valence ratings did not differ between groups., Interpretation: The results demonstrate that already distal gaming-specific cues lead to cue-reactivity and craving in rGD. This finding indicates that based on conditioning processes, cue-reactivity and craving develop during the course of GD and generalize to cues that are only moderately related to the specific gaming activity., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.)
- Published
- 2023
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27. Decision making and executive functions in problematic pornography use.
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Müller SM and Antons S
- Abstract
Introduction: Previous research on cognitive functions in Compulsive Sexual Behavior Disorder (CSBD) and problematic pornography use (PPU) reported inconsistent findings and mostly included sexual pictures in the used tasks. The role of general executive functions and cognitive competences (without the presence of appetitive stimuli) in the context of PPU is largely unexplored., Methods: This study investigated differences between individuals with high versus low problem severity of PPU regarding decision making and executive functions. The sample of the laboratory study consisted of N = 102 male adults. Besides measures of trait impulsivity, we used standard neuropsychological tests (Trail Making Test and three-back working memory task) and an intertemporal risky choice paradigm, the Cards & Lottery Task (CLT)., Results: The results show heightened impulsivity (urgency and deficits in perseverance) in individuals with high PPU, but no differences regarding performance in the CLT and executive function tasks., Discussion: The findings indicate that PPU might be associated with impulsive behavior when experiencing strong emotions (urgency) and deficient cognitive performance especially in the presence of sexual stimuli but not in general., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher., (Copyright © 2023 Müller and Antons.)
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- 2023
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28. Online compulsive buying-shopping disorder and social networks-use disorder: More similarities than differences?
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Wegmann E, Müller SM, Kessling A, Joshi M, Ihle E, Wolf OT, and Müller A
- Subjects
- Young Adult, Humans, Female, Surveys and Questionnaires, Compulsive Behavior diagnosis, Compulsive Behavior epidemiology, Compulsive Personality Disorder, Impulsive Behavior, Behavior, Addictive
- Abstract
Background: Studies in convenience, non-clinical samples of young adults suggest overlap between online compulsive buying-shopping disorder (OCBSD) and social-networks-use disorder (SNUD). Considering the dearth of research, this study investigated OCBSD and SNUD in clinical samples., Methods: Women with either OCBSD (n = 37) or SNUD (n = 41) were compared regarding sociodemographic variables, use time of the first-choice application, OCBSD/SNUD severity, general internet use, impulsivity, materialism, perceived chronic stress and the frequency of viewing posts of influencers and the urge to visit shopping websites or social networks after viewing influencer posts., Results: Women in the OCBSD group were older, more often employed, had less often a qualification for university entrance, indicated a lower daily use time of the first-choice application and higher materialistic values as compared to those in the SNUD group. No group differences emerged regarding general internet use, impulsivity and chronic stress. Regression models indicate that chronic stress predicted the symptom severity in the SNUD but not in the OCBSD group. The SNUD group reported a higher frequency of viewing influencer posts as compared to the OCBSD group. The urge for online shopping or using social networks after viewing influencer posts did not significantly differ between both groups., Conclusion: The findings suggest commonalities and distinct features of OCBSD and SNUD which require further investigation., Competing Interests: Declaration of Competing Interest None., (Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2023
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29. Association of response time and intermittent hypoxemia in extremely preterm infants.
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Martin S, Ackermann BW, Thome UH, Grunwald M, and Müller SM
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- Infant, Male, Infant, Newborn, Humans, Female, Reaction Time, Oximetry, Hypoxia complications, Gestational Age, Infant, Very Low Birth Weight, Infant, Extremely Premature, Oxygen
- Abstract
Aim: To determine the relationship between medical staff's response time (RT) to oxygen saturation (SpO
2 ) below 80% and the associated time from tactile intervention until SpO2 normalisation (CT)., Methods: Time-lapse video and continuous SpO2 were recorded for six consecutive 24 h periods. Regression analyses of RT and SpO2 in association with postmenstrual age (PMA), weight, infant sex and frequency of intermittent hypoxemia (IH)., Results: Five hundred and twelve hypoxemia episodes received tactile intervention in 20 extremely preterm infants (gestational age ≤28 weeks, birthweight <1500 g). Median RT was 20.5 s (IQR 16.63-25.50). RT increased with increased IH frequency (p = 0.023) independently of PMA and weight. SpO2 decreased by 3.7% with every 10 s RT (p = 0.039). Time until SpO2 normalisation was strongly associated with RT (β = 0.58, p = 0.042). The association was amplified by lower PMA (p = 0.043). Female preterm infants experienced longer RT than males (p = 0.027). Because the total length of an IH is the sum of RT and CT, preterm infants with low PMA can reach a critical hypoxemia duration of >60 s, even with short RT., Conclusion: The RT is a critical factor that affects the overall time of IH treatments and the depth of desaturation. The consequences of a prolonged RT are worse for more immature preterm infants., (© 2023 The Authors. Acta Paediatrica published by John Wiley & Sons Ltd on behalf of Foundation Acta Paediatrica.)- Published
- 2023
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30. Amino Acid-Based Polyphosphorodiamidates with Hydrolytically Labile Bonds for Degradation-Tuned Photopolymers.
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Haudum S, Lenhart S, Müller SM, Tupe D, Naderer C, Dehne T, Sittinger M, Major Z, Griesser T, Brüggemann O, Jacak J, and Teasdale I
- Subjects
- Humans, Biocompatible Materials, Tissue Engineering, Polyesters, Dental Materials, Sulfhydryl Compounds chemistry, Amino Acids, Tissue Scaffolds chemistry
- Abstract
Photochemical additive manufacturing technologies can produce complex geometries in short production times and thus have considerable potential as a tool to fabricate medical devices such as individualized patient-specific implants, prosthetics and tissue engineering scaffolds. However, most photopolymer resins degrade only slowly under the mild conditions required for many biomedical applications. Herein we report a novel platform consisting of amino acid-based polyphosphorodiamidate (APdA) monomers with hydrolytically cleavable bonds. The substituent on the α-amino acid can be used as a handle for facile control of hydrolysis rates of the monomers into their endogenous components, namely phosphate and the corresponding amino acid. Furthermore, monomer hydrolysis is considerably accelerated at lower pH values. The monomers underwent thiol-yne photopolymerization and could be 3D structured via multiphoton lithography. Copolymerization with commonly used hydrophobic thiols demonstrates not only their ability to regulate the ambient degradation rate of thiol-yne polyester photopolymer resins, but also desirable surface erosion behavior. Such degradation profiles, in the appropriate time frames, in suitably mild conditions, combined with their low cytotoxicity and 3D printability, render these novel photomonomers of significant interest for a wide range of biomaterial applications.
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- 2023
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31. Variability in Macro- and Micronutrients of 15 Rarely Researched Microalgae.
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Sandgruber F, Gielsdorf A, Schenz B, Müller SM, Schwerdtle T, Lorkowski S, Griehl C, and Dawczynski C
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- Humans, Micronutrients, Fatty Acids metabolism, Microalgae metabolism, Trace Elements, Haptophyta metabolism
- Abstract
Microalgae have enormous potential for human nutrition, yet the European Commission has authorized the consumption of only eleven species. Strains of fifteen rarely researched microalgae from two kingdoms were screened regarding their nutritional profile and value for human health in two cultivation phases. Contents of protein, fiber, lipids, fatty acids, minerals, trace elements and heavy metals were determined. In the growth phase, microalgae accumulated more arginine, histidine, ornithine, pure and crude protein, Mg, Mn, Fe and Zn and less Ni, Mo and I
2 compared to the stationary phase. Higher contents of total fat, C14:0, C14:1n5 , C16:1n7 , C20:4n6 , C20:5n3 and also As were observed in microalgae from the chromista kingdom in comparison to microalgae from the plantae kingdom ( p < 0.05). Conversely, the latter had higher contents of C20:0, C20:1n9 and C18:3n3 as well as Ca and Pb ( p < 0.05). More precisely, Chrysotila carterae appeared to have great potential for human nutrition because of its high nutrient contents such as fibers, carotenoids, C20:6n3 , Mg, Ca, Mn, Fe, Se, Zn, Ni, Mo and I2 . In summary, microalgae may contribute to a large variety of nutrients, yet the contents differ between kingdoms, cultivation phases and also species.- Published
- 2023
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32. Critical tests of fuzzy trace theory in brain and behavior: uncertainty across time, probability, and development.
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Reyna VF, Müller SM, and Edelson SM
- Subjects
- Humans, Choice Behavior physiology, Decision Making physiology, Probability, Reward, Risk-Taking, Brain physiology, Uncertainty
- Abstract
Uncertainty permeates decisions from the trivial to the profound. Integrating brain and behavioral evidence, we discuss how probabilistic (varied outcomes) and temporal (delayed outcomes) uncertainty differ across age and individuals; how critical tests adjudicate between theories of uncertainty (prospect theory and fuzzy-trace theory); and how these mechanisms might be represented in the brain. The same categorical gist representations of gains and losses account for choices and eye-tracking data in both value-allocation (add money to gambles) and risky-choice tasks, disconfirming prospect theory and confirming predictions of fuzzy-trace theory. The analysis is extended to delay discounting and disambiguated choices, explaining hidden-zero effects that similarly turn on categorical distinctions between some gain and no gain, certain gain and uncertain gain, gain and loss, and now and later. Bold activation implicates dorsolateral prefrontal and posterior parietal cortices in gist strategies that are not just one tool in a grab-bag of cognitive options but rather are general strategies that systematically predict behaviors across many different tasks involving probabilistic and temporal uncertainty. High valuation (e.g., ventral striatum; ventromedial prefrontal cortex) and low executive control (e.g., lateral prefrontal cortex) contribute to risky and impatient choices, especially in youth. However, valuation in ventral striatum supports reward-maximizing and gist strategies in adulthood. Indeed, processing becomes less "rational" in the sense of maximizing gains and more noncompensatory (eye movements indicate fewer tradeoffs) as development progresses from adolescence to adulthood, as predicted. Implications for theoretically predicted "public-health paradoxes" are discussed, including gist versus verbatim thinking in drug experimentation and addiction., (© 2023. The Psychonomic Society, Inc.)
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- 2023
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33. Body height among adult male and female Swiss Health Survey participants in 2017: Trends by birth years and associations with self-reported health status and life satisfaction.
- Author
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Müller SM, Floris J, Rohrmann S, Staub K, and Matthes KL
- Abstract
The increase in adult height for 150 years is linked to overall improvements in nutrition, hygiene, and living standards. Height is positively associated with general health and success on various levels (e.g. quality of life, earnings or happiness). The aim of this study was to investigate whether different subgroups show different trends across birth cohorts. We wanted to know whether taller individuals considered themselves as healthier and their quality of life as better than shorter individuals. We included 19,435 participants from the Swiss population-based Health Survey 2017. GAM were used to assess nonlinear associations between height and birth year. Multinomial logistic regression was used to predict probabilities of self-rated health in relation to height. The increase in average height slows down from the 1970s birth cohorts. Participants with parents from Central/Northern/Western Europe (men 177.9 cm, women: 165.1 cm) or Eastern Europe (men 178.7 cm, women: 165.7 cm) were taller than participants with parents from South America (men 174.3 cm, women: 161. cm) and Asia (men 173.2 cm, women: 160.1 cm). Participants with tertiary education were taller than participants from education levels (mean difference men: 4.5 cm, women: 5.0 cm). Height was positively associated with self-declared aspects of health and life satisfaction. These results support the conclusion that body height as a co-factor of health aspects should be considered in public health research. Although adult body height can no longer be influenced, nutritional status and thus also healthy growth can be influenced in childhood by public health programs, by eliminating social inequalities, and by strengthen healthy living conditions., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2022 The Author(s).)
- Published
- 2022
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34. Scarce data on skin microbiome in graft-versus-host disease after allogenic haematopoietic cell transplantation - a systematic review.
- Author
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Schumacher M, Egli A, Mari A, Navarini AA, Halter JP, and Müller SM
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- Humans, Skin, Transplantation, Homologous adverse effects, Graft vs Host Disease, Hematopoietic Stem Cell Transplantation adverse effects, Microbiota
- Published
- 2022
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35. Assessment of Criteria for Specific Internet-use Disorders (ACSID-11): Introduction of a new screening instrument capturing ICD-11 criteria for gaming disorder and other potential Internet-use disorders.
- Author
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Müller SM, Wegmann E, Oelker A, Stark R, Müller A, Montag C, Wölfling K, Rumpf HJ, and Brand M
- Abstract
Background and Aims: With the inclusion of gaming disorder in the ICD-11, diagnostic criteria were introduced for this relatively new disorder. These criteria may also be applied to other potential specific Internet-use disorders, which may be classified in ICD-11 as other disorders due to addictive behaviors, such as online buying-shopping disorder, online pornography-use disorder, social-networks-use disorder, and online gambling disorder. Due to the heterogeneity in existing instruments, we aimed to develop a consistent and economic measure of major types of (potential) specific Internet-use disorders based on ICD-11 criteria for gaming disorder., Methods: The new 11-item Assessment of Criteria for Specific Internet-use Disorders (ACSID-11) measures five behavioral addictions with the same set of items by following the principles of WHO's ASSIST. The ACSID-11 was administered to active Internet users (N = 985) together with an adaptation of the Ten-Item Internet Gaming Disorder Test (IGDT-10) and screeners for mental health. We used Confirmatory Factor Analyses to analyze the factor structure of ACSID-11., Results: The assumed four-factorial structure was confirmed and was superior to the unidimensional solution. This applied to gaming disorder and to the other specific Internet-use disorders. ACSID-11 scores correlated with IGDT-10 as well as with the measures of psychological distress., Discussion and Conclusions: The ACSID-11 seems to be suitable for the consistent assessment of (potential) specific Internet-use disorders based on ICD-11 diagnostic criteria for gaming disorder. The ACSID-11 may be a useful and economic instrument for studying various behavioral addictions with the same items and improving comparability.
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- 2022
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36. Correction: Synthesis and characterization of diacylgermanes: persistent derivatives with superior photoreactivity.
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Püschmann SD, Frühwirt P, Müller SM, Wagner SH, Torvisco A, Fischer RC, Kelterer AM, Griesser T, Gescheidt G, and Haas M
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Correction for 'Synthesis and characterization of diacylgermanes: persistent derivatives with superior photoreactivity' by Sabrina D. Püschmann et al. , Dalton Trans. , 2021, 50 , 11965-11974, DOI: 10.1039/D1DT02091A.
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- 2022
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37. Decision Making and Risk Propensity in Individuals with Tendencies towards Specific Internet-Use Disorders.
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Müller SM, Wegmann E, Garcia Arías M, Bernabéu Brotóns E, Marchena Giráldez C, and Brand M
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The uncontrolled use of specific Internet applications is increasingly recognized as a mental health issue. Gaming disorder, which is one subtype of specific Internet-use disorders (sIUDs), has been included in the ICD-11 as disorder due to addictive behaviors. Addictive disorders are assumed to be accompanied by cognitive deficits as indicated by weaker performance in executive function and risky decision-making tasks. This study investigates risky decision-making in individuals with tendencies towards sIUDs including gaming, online buying-shopping, and social-networks-use disorders. A total of 293 individuals participated in the study. Based on specific screening instruments, the participants were assigned to a group with tendencies towards sIUD or a control group. Participants completed a risky decision-making task and questionnaires assessing risk-taking propensity, impulsivity, psychopathology, and perceived stress. The group with sIUD tendencies showed higher attentional impulsivity and higher levels of depression and anxiety compared to the control group. The groups did not differ in decision making and risk propensity. Decision making did not have significant effects on sIUD symptoms. Risk for developing sIUDs does not appear to be accompanied by altered general decision-making tendencies. Rather, psychological (pre-)load and attentional deficits appear to be relevant features in uncontrolled use of the Internet.
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- 2022
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38. [Prehospital Pain Management: Overview and Potential Improvements].
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Akbas S, Castellucci C, Nehls F, Müller SM, Spahn DR, and Kaserer A
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- Humans, Pain, Pain Management methods, Pain Measurement, Analgesia methods, Emergency Medical Services methods
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Prehospital Pain Management: Overview and Potential Improvements Abstract. Pain is a frequent issue in the prehospital setting. Rapid and adequate analgesia has a positive effect on the physiological and psychological condition of patients. However, up to 43 % of patients still suffer insufficient analgesia. Several studies have identified some factors that contribute to this problem; these factors can be patient- and intervention-specific or dependent on the staff on duty. In order to improve prehospital analgesia in the future, structural and organizational changes as well as the implementation of new methods and therapies are essential.
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- 2022
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39. Bis-choline tetrathiomolybdate prevents copper-induced blood-brain barrier damage.
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Borchard S, Raschke S, Zak KM, Eberhagen C, Einer C, Weber E, Müller SM, Michalke B, Lichtmannegger J, Wieser A, Rieder T, Popowicz GM, Adamski J, Klingenspor M, Coles AH, Viana R, Vendelbo MH, Sandahl TD, Schwerdtle T, Plitz T, and Zischka H
- Subjects
- Animals, Biological Transport, Biomarkers, Blood-Brain Barrier diagnostic imaging, Brain diagnostic imaging, Brain drug effects, Brain metabolism, Brain pathology, Cell Survival, Chelating Agents pharmacology, Copper adverse effects, Copper chemistry, Endothelial Cells drug effects, Endothelial Cells metabolism, Humans, Mice, Transgenic, Mitochondria metabolism, Mitochondria ultrastructure, Models, Molecular, Positron-Emission Tomography, Protein Binding, Rats, Serum Albumin chemistry, Serum Albumin metabolism, Structure-Activity Relationship, Blood-Brain Barrier metabolism, Blood-Brain Barrier pathology, Copper metabolism, Molybdenum pharmacology, Penicillamine pharmacology
- Abstract
In Wilson disease, excessive copper accumulates in patients' livers and may, upon serum leakage, severely affect the brain according to current viewpoints. Present remedies aim at avoiding copper toxicity by chelation, for example, by D-penicillamine (DPA) or bis-choline tetrathiomolybdate (ALXN1840), the latter with a very high copper affinity. Hence, ALXN1840 may potentially avoid neurological deterioration that frequently occurs upon DPA treatment. As the etiology of such worsening is unclear, we reasoned that copper loosely bound to albumin, that is, mimicking a potential liver copper leakage into blood, may damage cells that constitute the blood-brain barrier, which was found to be the case in an in vitro model using primary porcine brain capillary endothelial cells. Such blood-brain barrier damage was avoided by ALXN1840, plausibly due to firm protein embedding of the chelator bound copper, but not by DPA. Mitochondrial protection was observed, a prerequisite for blood-brain barrier integrity. Thus, high-affinity copper chelators may minimize such deterioration in the treatment of neurologic Wilson disease., (© 2021 Borchard et al.)
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- 2021
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40. Decision-making, cognitive functions, impulsivity, and media multitasking expectancies in high versus low media multitaskers.
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Müller SM, Schiebener J, Brand M, and Liebherr M
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- Decision Making, Executive Function, Humans, Intelligence, Memory, Short-Term, Neuropsychological Tests, Risk-Taking, Cognition, Impulsive Behavior
- Abstract
In several studies, individuals who reported to frequently multitask with different media displayed reduced cognitive performance, for example in fluid intelligence and executive functioning. These cognitive functions are relevant for making advantageous decisions under both objective risk (requiring reflection and strategical planning) and ambiguous risk (requiring learning from feedback). Thus, compared to low media multitaskers (LMMs), high media multitaskers (HMMs) may perform worse in both types of decision situations. The current study investigated HMMs and LMMs in a laboratory setting with the Game of Dice Task (GDT; objective risk), the Iowa Gambling Task (IGT; ambiguous risk), various tests quantifying cognitive functions (logical reasoning, working memory, information processing, general executive functions), and self-report measures of impulsivity, media multitasking expectancies, and problematic Internet use. From 182 participants, 25 HMMs and 19 LMMs were identified using the Media Multitasking Index. Results show that HMMs compared to LMMs performed weaker on the IGT but not on the GDT. Furthermore, HMMs had slightly decreased performance in tests of logical reasoning and working memory capacity. HMMs tended to increased information processing speed but this difference was not significant. Furthermore, HMMs have more positive expectancies regarding media multitasking and reported higher tendencies toward problematic Internet use. HMMs and LMMs did not differ significantly with respect to impulsivity and executive functions. The results give a first hint that HMMs may have difficulties in decision-making under ambiguous but not under objective risk. HMMs may be more prone to errors in tasks that require feedback processing. However, HMMs appear not to be impaired in aspects of long-term strategic decision-making., (© 2021. The Author(s).)
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- 2021
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41. Synthesis and characterization of diacylgermanes: persistent derivatives with superior photoreactivity.
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Püschmann SD, Frühwirt P, Müller SM, Wagner SH, Torvisco A, Fischer RC, Kelterer AM, Griesser T, Gescheidt G, and Haas M
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Acylgermanes are known as highly efficient photoinitiators. In this contribution, we present the synthesis of new diacylgermanes 4a-evia a multiple silyl abstraction methodology. The method outperforms the state-of-the-art approach (Corey-Seebach reaction) towards diacylgermanes in terms of group tolerance and toxicity of reagents. Moreover, these compounds are decorated with bulky mesityl groups in order to improve their storage stability. The isolated diacylgermanes were characterized by multinuclear NMR-, UV-Vis spectroscopy and X-ray crystallography, as well as photolysis experiments (photobleaching) and photo-DSC measurements (photopolymerization behavior). Upon irradiation with an LED emitting at 385 nm, all compounds except for 4a and 4c bleach efficiently with quantum yields above 0.6. Due to their broad absorption bands, the compounds can be also bleached with blue light (470 nm), where especially 4e bleaches more efficiently than Ivocerin®.
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- 2021
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42. Essential role of autophagy in restricting poliovirus infection revealed by identification of an ATG7 defect in a poliomyelitis patient.
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Brinck Andersen NS, Jørgensen SE, Skipper KA, Larsen SM, Heinz J, Thomsen MM, Farahani E, Cai Y, Hait AS, Kay L, Giehm Mikkelsen J, Høgsbjerg Schleimann M, Thomsen MK, Paludan SR, and Mogensen TH
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- Autophagy genetics, Autophagy-Related Protein 7 genetics, Humans, Neurons, Interferon Type I, Poliomyelitis genetics, Poliomyelitis prevention & control, Poliovirus genetics
- Abstract
Paralytic poliomyelitis is a rare disease manifestation following poliovirus (PV) infection. The disease determinants remain largely unknown. We used whole exome sequencing to uncover possible contributions of host genetics to the development of disease outcome in humans with poliomyelitis. We identified a patient with a variant in ATG7 , an important regulatory gene in the macroautophagy/autophagy pathway. PV infection did not induce a prominent type I interferon response, but rather activated autophagy in neuronal-like cells, and this was essential for viral control. Importantly, virus-induced autophagy was impaired in patient fibroblasts and associated with increased viral burden and enhanced cell death following infection. Lack of ATG7 prevented control of infection in neuronal-like cells, and reconstitution of patient cells with wild-type ATG7 reestablished autophagy-mediated control of infection. Collectively, these data suggest that ATG7 defect contributes to host susceptibility to PV infection and propose autophagy as an unappreciated antiviral effector in viral infection in humans.
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- 2021
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43. Social-networks-related stimuli interferes decision making under ambiguity: Interactions with cue-induced craving and problematic social-networks use.
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Wegmann E, Müller SM, Trotzke P, and Brand M
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- Adult, Female, Humans, Male, Visual Analog Scale, Young Adult, Behavior, Addictive psychology, Craving, Cues, Decision Making, Online Social Networking
- Abstract
Background and Aims: Social-networks-use disorder is discussed as a potential further type of disorders due to addictive behaviors. Theoretical models assume cue-induced craving and disadvantageous decision making to be relevant mechanisms. This study investigates if the presentation of social-networks-related cues interferes with decision making under ambiguity., Methods: Craving was induced with a cue-reactivity paradigm and assessed with a visual analogue scale. Participants (N = 146) played a modified Iowa Gambling Task with social-networks-related cues and neutral cues presented on the advantageous and disadvantageous decks respectively, or vice versa. Symptoms of social-networks-use disorder were measured with a modified version of the short Internet Addiction Test., Results: Overall, participants chose options with neutral cues more often than those with social-networks-related cues, even if it was disadvantageous. There was a significant interaction between decision-making performance and Iowa Gambling Task condition in predicting symptom severity. The results indicate that choosing decks with social-networks-related cues even if it was disadvantageous is associated with higher tendencies towards a social-networks-use disorder. The interaction with cue-induced craving did not explain further variance., Discussion and Conclusions: The results highlight the relevance of cue reactivity, decision making, and their interaction as potential mechanisms explaining tendencies towards a social-networks-use disorder. Decision making was influenced by affective responses, which could result in a higher risk of a potential addictive behavior. This is consistent with the findings from addiction research and with theoretical approaches assuming an imbalance between affective and cognitive processes in addictive behaviors.
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- 2021
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44. Variability in Macro- and Micronutrients of 15 Commercially Available Microalgae Powders.
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Sandgruber F, Gielsdorf A, Baur AC, Schenz B, Müller SM, Schwerdtle T, Stangl GI, Griehl C, Lorkowski S, and Dawczynski C
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- Chemistry Techniques, Analytical, Humans, Micronutrients analysis, Powders, Dietary Supplements analysis, Microalgae chemistry, Nutrients analysis, Nutritive Value
- Abstract
The nutrient composition of 15 commercially available microalgae powders of Arthrospira platensis , Chlorella pyrenoidosa and vulgaris , Dunaliella salina , Haematococcus pluvialis , Tetraselmis chuii , and Aphanizomenon flos-aquae was analyzed. The Dunaliella salina powders were characterized by a high content of carbohydrates, saturated fatty acids (SFAs), omega-6-polyunsaturated fatty acids (n6-PUFAs), heavy metals, and α-tocopherol, whereas the protein amounts, essential amino acids (EAAs), omega-3-PUFAs (n3-PUFAs), vitamins, and minerals were low. In the powder of Haematococcus pluvialis , ten times higher amounts of carotenoids compared to all other analyzed powders were determined, yet it was low in vitamins D and E, protein, and EAAs, and the n6/n3-PUFAs ratio was comparably high. Vitamin B
12 , quantified as cobalamin, was below 0.02 mg/100 g dry weight (d.w.) in all studied powders. Based on our analysis, microalgae such as Aphanizomenon and Chlorella may contribute to an adequate intake of critical nutrients such as protein with a high content of EAAs, dietary fibers, n3-PUFAs, Ca, Fe, Mg, and Zn, as well as vitamin D and E. Yet, the nutritional value of Aphanizomenon flos-aquae was slightly decreased by high contents of SFAs. The present data show that microalgae are rich in valuable nutrients, but the macro- and micronutrient profiles differ strongly between and within species.- Published
- 2021
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45. Deficits in executive functions but not in decision making under risk in individuals with problematic social-network use.
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Müller SM, Wegmann E, García Arias M, Bernabéu Brotóns E, Marchena Giráldez C, and Brand M
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- Decision Making, Executive Function, Humans, Impulsive Behavior, Internet, Behavior, Addictive, Substance-Related Disorders
- Abstract
Background: The tendency to strive for immediate gratification by neglecting potential negative long-term outcomes characterizes addictive behaviors, such as substance use or gaming disorder. Problematic social-network use is currently discussed as another potential addictive behavior, which is considered to result from an imbalance between affective and cognitive processes, indicated by traits such as increased impulsivity and/or decreased executive functions and decision-making abilities., Methods: This study investigates the respective functions in social-network users by use of the Cards and Lottery Task (CLT) - a decision-making task under risk conditions in which options contain conflicting immediate and long-term outcomes at the same time. A sample of German and Spanish participants (N = 290) performed the CLT as well as the Modified Card Sorting Test (MCST), Barratt Impulsiveness Scale (BIS), the short Internet Addiction Test specified for social-networking (sIAT-SNS), and screeners on other potentially problematic behaviors., Results: Comparing extreme groups based on sIAT-SNS scores (1SD above/below mean), individuals with problematic social-network use (n = 56), as compared to those with non-problematic social-network use (n = 50), showed increased attentional impulsivity and reduced executive functions. No differences were observed in decision-making performance., Conclusion: The findings indicate that problematic social-network use is related to attentional rather than general decision-making deficits. Furthermore, problematic social-network use is likely to co-occur with other problematic Internet-use behaviors, particularly gaming or shopping., Competing Interests: Declaration of Competing Interest none., (Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.)
- Published
- 2021
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46. Neglecting Long-Term Risks: Self-Disclosure on Social Media and Its Relation to Individual Decision-Making Tendencies and Problematic Social-Networks-Use.
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Ostendorf S, Müller SM, and Brand M
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Social media including social-networking sites (SNS) encourage people to disclose personal information via profiles and posts. It is assumed that positive short-term effects and immediate feedback (e.g., getting Likes) have a rewarding nature and may complicate the rational weighing of possible negative long-term consequences related to self-disclosure. Dual-process theories assume risky behaviors to result from more impulsive/short-term oriented compared to reflective/long-term oriented decision making. The current laboratory study investigates whether the extent of online self-disclosure is explained by the general tendency to choose short-term rewards by neglecting long-term risks as well as by tendencies toward a problematic social-networks-use. Participants ( N = 88) were asked to log into their Facebook account to answer questions about their actual self-disclosing behavior. Furthermore, they performed an experimental decision-making task and answered a questionnaire assessing problematic social-networks-use. The quantity of self-disclosure via posts was negatively associated with advantageous decision making and positively with tendencies toward a problematic social-networks-use. The findings indicate that high self-disclosure via posts is associated with a general tendency to neglect long-term risks. Moreover, a problematic social-networks-use can additionally increase individual's self-disclosure via posts., (Copyright © 2020 Ostendorf, Müller and Brand.)
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- 2020
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47. The Chemistry of Acylgermanes: Triacylgermenolates Represent Valuable Building Blocks for the Synthesis of a Variety of Germanium-Based Photoinitiators.
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Frühwirt P, Knoechl A, Pillinger M, Müller SM, Wasdin PT, Fischer RC, Radebner J, Torvisco A, Moszner N, Kelterer AM, Griesser T, Gescheidt G, and Haas M
- Abstract
The formation of a stable triacylgermenolate 2 as a decisive intermediate was achieved by using three pathways. The first two methods involve the reaction of KO t Bu or alternatively potassium with tetraacylgermane 1 yielding 2 via one electron transfer. The mechanism involves the formation of radical anions (shown by EPR). This reaction is highly efficient and selective. The third method is a classical salt metathesis reaction toward 2 in nearly quantitative yield. The formation of 2 was confirmed by NMR spectroscopy, UV-vis measurements, and X-ray crystallography. Germenolate 2 serves as a starting point for a wide variety of organo-germanium compounds. We demonstrate the potential of this intermediate by introducing new types of Ge-based photoinitiators 4b - 4f . The UV-vis absorption spectra of 4b - 4f show considerably increased band intensities due to the presence of eight or more chromophores. Moreover, compounds 4d - 4f show absorption tailing up to 525 nm. The performance of these photoinitiators is demonstrated by spectroscopy (time-resolved EPR, laser flash photolysis (LFP), photobleaching (UV-vis)) and photopolymerization experiments (photo-DSC measurements).
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- 2020
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48. Changes in visual attention towards food cues after obesity surgery: An eye-tracking study.
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Schäfer L, Schmidt R, Müller SM, Dietrich A, and Hilbert A
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- Feeding Behavior, Food, Humans, Obesity surgery, Cues, Eye-Tracking Technology
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Research documented the effectiveness of obesity surgery (OS) for long-term weight loss and improvements in medical and psychosocial sequelae, and general cognitive functioning. However, there is only preliminary evidence for changes in attentional processing of food cues after OS. This study longitudinally investigated visual attention towards food cues from pre- to 1-year post-surgery. Using eye tracking (ET) and a Visual Search Task (VST), attentional processing of food versus non-food cues was assessed in n = 32 patients with OS and n = 31 matched controls without weight-loss treatment at baseline and 1-year follow-up. Associations with experimentally assessed impulsivity and eating disorder psychopathology and the predictive value of changes in visual attention towards food cues for weight loss and eating behaviors were determined. During ET, both groups showed significant gaze duration biases to non-food cues without differences and changes over time. No attentional biases over group and time were found by the VST. Correlations between attentional data and clinical variables were sparse and not robust over time. Changes in visual attention did not predict weight loss and eating disorder psychopathology after OS. The present study provides support for a top-down regulation of visual attention to non-food cues in individuals with severe obesity. No changes in attentional processing of food cues were detected 1-year post-surgery. Further studies are needed with comparable methodology and longer follow-ups to clarify the role of biased visual attention towards food cues for long-term weight outcomes and eating behaviors after OS., (Copyright © 2020 Elsevier Ltd. All rights reserved.)
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- 2020
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49. Investigation of the Adsorption Behavior of Jet-Cooked Cationic Starches on Pulp Fibers.
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Ferstl E, Gabriel M, Gomernik F, Müller SM, Selinger J, Thaler F, Bauer W, Uhlig F, Spirk S, and Chemelli A
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The optimization of the thermal treatment of cationic starch in the paper industry offers the opportunity to reduce the energy consumption of this process . Four different industrially relevant cationic starches, varying in source, cationization method and degree of substitution were treated by a steam-jet cooking procedure, comparable to industrially employed starch cooking processes. The influence of the starch properties and cooking parameters on the adsorption behavior of the starches on cellulosic pulp was investigated. The adsorbed amount was affected by the cooking temperature and the type of starch. For some starch grades, a cooking temperature of 115 °C can be employed to achieve sufficient starch retention on the pulp fibers. The energy consumption could further be reduced by cooking at higher starch concentrations without loss of adsorption efficiency., Competing Interests: The authors declare no conflict of interest.
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- 2020
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50. A Randomized Study of Food Pictures-Influenced Decision-Making Under Ambiguity in Individuals With Morbid Obesity.
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Lescher M, Wegmann E, Müller SM, Laskowski NM, Wunder R, Jiménez-Murcia S, Szycik GR, de Zwaan M, and Müller A
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Background and Aims: In addition to craving responses to salient food cues, the anticipation of short-term rewarding consumption of palatable food may overrun the anticipation of long-term negative consequences of obesity. The present investigation addressed the potential interplay of food cravings and decision-making abilities in individuals with obesity., Method: Study 1 included 107 bariatric surgery candidates with class 2/3 obesity (OB-group) and study 2 included 54 individuals with normal weight/pre-obesity (nonOB-group). In both studies, standardized questionnaires concerning food cravings, food addiction, and psychopathology were administered. A cue-reactivity paradigm was used to measure craving responses toward semi-individualized images of highly palatable, processed food/fruit (appetitive food cues) compared to images of raw vegetables (non-appetitive food cues). Decision-making was measured with a modified computerized version of the Iowa Gambling Task (IGT) with food pictures. Both groups were divided into two subgroups that were randomized to different IGT conditions. In one IGT condition the advantageous IGT card decks were covered by pictures of palatable, processed food or fruit and the disadvantageous decks by images of raw vegetables (= congruent condition), and in the other IGT condition vice versa ., Results: Participants in the OB-group admitted on average higher craving responses toward palatable, processed food or fruit cues compared to pictures of raw vegetables. This was not the case in the nonOB-group. Contrary to our hypothesis, decision-making performance in both groups was worse when pictures of palatable, processed food or fruit were associated with advantageous IGT card decks compared to performance when those pictures were linked to the disadvantageous decks. The interference effect of food pictures processing on advantageous decision-making has been observed particularly in those individuals of the OB-group who exhibited high craving responses toward palatable, processed food cues or high levels of food addiction., Discussion: The results indicate that food pictures processing interferes with decision-making, regardless of weight status. Opposed to the hypothesis, stronger tendencies to avoid than to approach pictures presenting processed, tasty food were observed. Further research should examine how cognitive avoidance tendencies toward processed, high energy food and approach tendencies toward healthy food can be transferred to real life situations., (Copyright © 2020 Lescher, Wegmann, Müller, Laskowski, Wunder, Jiménez-Murcia, Szycik, de Zwaan and Müller.)
- Published
- 2020
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