1,569 results on '"Jakob G"'
Search Results
152. High incidence and geographic distribution of cleft palate in Finland are associated with the IRF6 gene
- Author
-
Fedik Rahimov, Pekka Nieminen, Priyanka Kumari, Emma Juuri, Tiit Nikopensius, Kitt Paraiso, Jakob German, Antti Karvanen, Mart Kals, Abdelrahman G. Elnahas, Juha Karjalainen, Mitja Kurki, Aarno Palotie, FinnGen, Estonian Biobank Research Team, Arja Heliövaara, Tõnu Esko, Sakari Jukarainen, Priit Palta, Andrea Ganna, Anjali P. Patni, Daniel Mar, Karol Bomsztyk, Julie Mathieu, Hannele Ruohola-Baker, Axel Visel, Walid D. Fakhouri, Brian C. Schutte, Robert A. Cornell, and David P. Rice
- Subjects
Science - Abstract
Abstract In Finland, the frequency of isolated cleft palate (CP) is higher than that of isolated cleft lip with or without cleft palate (CL/P). This trend contrasts to that in other European countries but its genetic underpinnings are unknown. We conducted a genome-wide association study in the Finnish population and identified rs570516915, a single nucleotide polymorphism highly enriched in Finns, as strongly associated with CP (P = 5.25 × 10−34, OR = 8.65, 95% CI 6.11–12.25), but not with CL/P (P = 7.2 × 10−5), with genome-wide significance. The risk allele frequency of rs570516915 parallels the regional variation of CP prevalence in Finland, and the association was replicated in independent cohorts of CP cases from Finland (P = 8.82 × 10−28) and Estonia (P = 1.25 × 10−5). The risk allele of rs570516915 alters a conserved binding site for the transcription factor IRF6 within an enhancer (MCS-9.7) upstream of the IRF6 gene and diminishes the enhancer activity. Oral epithelial cells derived from CRISPR-Cas9 edited induced pluripotent stem cells demonstrate that the CP-associated allele of rs570516915 concomitantly decreases the binding of IRF6 and the expression level of IRF6, suggesting impaired IRF6 autoregulation as a molecular mechanism underlying the risk for CP.
- Published
- 2024
- Full Text
- View/download PDF
153. The I-OPTA Questionnaire: A National Assessment of Patients with Neovascular Age-Related Macular Degeneration
- Author
-
Benjamin Sommer Thinggaard, Kasper Hansen, Freja Dinesen, Maria Kjøller Pedersen, Lars Morsø, Yousif Subhi, Jakob Grauslund, and Lonny Stokholm
- Subjects
Quality of life ,Visual function ,Preventive measures ,Questionnaire ,Neovascular age-related macular degeneration ,Retinal disease ,Ophthalmology ,RE1-994 - Abstract
Abstract Introduction Neovascular age-related macular degeneration (nAMD) is the leading cause of irreversible vision loss in developed countries. However, a significant gap persists in understanding this population, exacerbated by their advanced age and visual impairments, which can hinder research participation and access to healthcare. The purpose of this study was to describe the content of the questionnaire and the participating patients with nAMD. Methods The survey includes patients diagnosed with nAMD who had previously received treatment or were currently undergoing intravitreal anti-vascular endothelial growth factor (anti-VEGF) injections. Participants were recruited using various methods, as reaching out to patients who are no longer receiving treatment poses a particular challenge. A patient and public advisory board assisted throughout the study period. Results Of the 713 electronic invitations sent out, 494 (69.3%) patients responded to the questionnaire, with an additional 57 responses obtained through e-mail or telephone interviews. Due to the exclusion of 16 responses, there were a total of 535 valid responses, including 176 from patients previously treated and 359 from those currently undergoing treatment for nAMD. The median age of respondents was 79.9 years (interquartile range [IQR] 75.5–84.7), with 59.8% being women. Among them, 53.2% were married, while 43.1% lived alone. Conclusions Data from the I-OPTA (Identification of Patient-Reported Barriers in Treatment for nAMD) questionnaire allows future exploration of patients who are no longer receiving treatment, patients’ knowledge about preventive measures, and the impact of nAMD on visual function and quality of life. Future research, including studies that integrate data from corresponding retinal images and Danish national registers, has the potential to generate invaluable knowledge, providing benefits to both patients and healthcare professionals.
- Published
- 2024
- Full Text
- View/download PDF
154. Whole genome sequencing analysis identifies sex differences of familial pattern contributing to phenotypic diversity in autism
- Author
-
Soo-Whee Kim, Hyeji Lee, Da Yea Song, Gang-Hee Lee, Jungeun Ji, Jung Woo Park, Jae Hyun Han, Jee Won Lee, Hee Jung Byun, Ji Hyun Son, Ye Rim Kim, Yoojeong Lee, Jaewon Kim, Ashish Jung, Junehawk Lee, Eunha Kim, So Hyun Kim, Jeong Ho Lee, F. Kyle Satterstrom, Santhosh Girirajan, Anders D. Børglum, Jakob Grove, Eunjoon Kim, Donna M. Werling, Hee Jeong Yoo, and Joon-Yong An
- Subjects
Whole-genome sequencing ,Autism ,Sex difference ,Phenotypic diversity ,Familial pattern ,Polygenic burden ,Medicine ,Genetics ,QH426-470 - Abstract
Abstract Background Whole-genome sequencing (WGS) analyses have found higher genetic burden in autistic females compared to males, supporting higher liability threshold in females. However, genomic evidence of sex differences has been limited to European ancestry to date and little is known about how genetic variation leads to autism-related traits within families across sex. Methods To address this gap, we present WGS data of Korean autism families (n = 2255) and a Korean general population sample (n = 2500), the largest WGS data of East Asian ancestry. We analyzed sex differences in genetic burden and compared with cohorts of European ancestry (n = 15,839). Further, with extensively collected family-wise Korean autism phenotype data (n = 3730), we investigated sex differences in phenotypic scores and gene-phenotype associations within family. Results We observed robust female enrichment of de novo protein-truncating variants in autistic individuals across cohorts. However, sex differences in polygenic burden varied across cohorts and we found that the differential proportion of comorbid intellectual disability and severe autism symptoms mainly drove these variations. In siblings, males of autistic females exhibited the most severe social communication deficits. Female siblings exhibited lower phenotypic severity despite the higher polygenic burden than male siblings. Mothers also showed higher tolerance for polygenic burden than fathers, supporting higher liability threshold in females. Conclusions Our findings indicate that genetic liability in autism is both sex- and phenotype-dependent, expanding the current understanding of autism’s genetic complexity. Our work further suggests that family-based assessments of sex differences can help unravel underlying sex-differential liability in autism.
- Published
- 2024
- Full Text
- View/download PDF
155. HuBac and nifH source tracking markers display a relationship to land use but not rainfall
- Author
-
Gentry-Shields, Jennifer, Rowny, Jakob G., and Stewart, Jill R.
- Published
- 2012
- Full Text
- View/download PDF
156. Characterization of nonpoint source microbial contamination in an urbanizing watershed serving as a municipal water supply
- Author
-
Rowny, Jakob G. and Stewart, Jill R.
- Published
- 2012
- Full Text
- View/download PDF
157. Exercise-induced regulation of key factors in substrate choice and gluconeogenesis in mouse liver
- Author
-
Knudsen, Jakob G., Biensø, Rasmus S., Hassing, Helle A., Jakobsen, Anne H., and Pilegaard, Henriette
- Published
- 2015
- Full Text
- View/download PDF
158. Nonlinear interaction between clustered unstable thermoacoustic modes in can-annular combustors
- Author
-
Jakob G. R. von Saldern, Alessandro Orchini, and Jonas P. Moeck
- Subjects
Physics ,Coupling ,Oscillation ,Plane (geometry) ,Mechanical Engineering ,General Chemical Engineering ,Strong interaction ,Acoustic wave ,Mechanics ,Nonlinear system ,Boundary value problem ,Physical and Theoretical Chemistry ,Conservation of mass ,Computer Science::Databases - Abstract
A can-annular combustor consists of a set of nominally identical cans, in which the flames burn in an essentially isolated manner. However, adjacent cans are able to communicate acoustically, which provides dynamic coupling of the entire can-annular arrangement. Recently, it was shown that the acoustic coupling is not negligible and can cause clustering of eigenfrequencies. In this study, we present a low-order modeling framework for self-excited thermoacoustic oscillations in generic can-annular combustors consisting of N identical cans. The dynamics of the flames are modeled with the nonlinear G-equation; the acoustic model accounts for plane acoustic waves inside the cans and can-to-can communication. The latter is enabled through a coupling boundary condition that is based on conservation of mass and a Rayleigh conductivity. For weak coupling between adjacent cans, the thermoacoustic feedback cycle shows clusters of linearly unstable modes of different azimuthal order, which are close in frequency and growth rate. Their interaction in the nonlinear regime is investigated using time-domain simulations. Two simulations for generic can-annular combustors consisting of 4 and 6 cans with weak acoustic coupling are discussed in this study. We observe a strong interaction between the modes, which can cause long transition times and allows modes that do not dominate the system dynamics in the linear regime to be dominant in the nonlinear regime. While the N = 6 case converges to a periodic oscillation pattern with one dominant frequency, the N = 4 case converges to a quasi-periodic oscillation involving modes of different azimuthal order. Moreover, we observe a synchronization of these modes. These results raise the questions whether it is possible to predict which mode(s) will dominate the system in the saturated state and under which conditions synchronization of clustered modes can occur.
- Published
- 2021
- Full Text
- View/download PDF
159. Automatized Experimental Combustor Development Using Adaptive Surrogate Model-Based Optimization
- Author
-
Reumschüssel, Johann Moritz, additional, zur Nedden, Philipp Maximilian, additional, von Saldern, Jakob G. R., additional, Reichel, Thoralf G., additional, Ćosić, Bernhard, additional, and Paschereit, Christian Oliver, additional
- Published
- 2022
- Full Text
- View/download PDF
160. Effects of different mobility concepts in new residential areas
- Author
-
Matthias Heinrichs, Stefanie Schöne, Jakob Geischberger, and María López Díaz
- Subjects
City planning ,Demand modelling ,Public transport ,Traffic simulation ,Agent based modelling ,HT165.5-169.9 ,Transportation engineering ,TA1001-1280 - Abstract
Growing cities need new residential areas, which are often either not connected to the existing transport infrastructure or are poorly connected to it. A fast way to connect these areas is the construction of roads. However, this generates a car-depending mobility among the inhabitants, which is in conflict with several sustainability goals. Moreover, the impact of the implementation of new public transport options is only partly known and this fact reduces the willingness to invest in expensive public transport measures. In this work we examine different mobility concepts, including shared mobility, bicycle highways, a high-frequency bus service, suburban trains and car limitations in a new residential area of 2000 households in Berlin, Germany, which is currently under construction. The households and inhabitants are created synthetically using statistical data derived from a survey among the first people moved in. The age and size structure of these households turn out to be different from the neighboring households. Then, we implement all measures in a microscopic travel demand simulation and quantify the potential modal shifts for four different mobility concepts. The results show that weak and short-term mobility concepts show no significant change in mobility behavior. Only highly integrated projects like bicycle highways into the inner city combined with suburban trains can reduce the need for car-dependent mobility. Shared mobility only fills in the gaps for special occasions but not for daily mobility due to the high costs. In a final step we examine the usage of the introduced public transport services and compare the change in the occupation of the buses and trains. Here our work shows that interchanging from bus to subways and suburban trains drastically reduces the attractiveness of public transport. Introducing a new suburban train changes this situation and the whole region shows a drop of 40% of car trips.
- Published
- 2024
- Full Text
- View/download PDF
161. This title is unavailable for guests, please login to see more information.
- Author
-
McLaughlin, Kerry, Acreman, Samuel, Nawaz, Sameena, Cutteridge, Joseph, Clark, Anne, Knudsen, Jakob G., Denwood, Geoffrey, Spigelman, Aliya F., Fox, Jocelyn E. Manning, Singh, Sumeet Pal, MacDonald, Patrick E., Hastoy, Benoit, Zhang, Quan, McLaughlin, Kerry, Acreman, Samuel, Nawaz, Sameena, Cutteridge, Joseph, Clark, Anne, Knudsen, Jakob G., Denwood, Geoffrey, Spigelman, Aliya F., Fox, Jocelyn E. Manning, Singh, Sumeet Pal, MacDonald, Patrick E., Hastoy, Benoit, and Zhang, Quan
- Abstract
Background: Tetraspanin-7 (Tspan7) is an islet autoantigen involved in autoimmune type 1 diabetes and known to regulate beta-cell L-type Ca-2(+) channel activity. However, the role of Tspan7 in pancreatic beta-cell function is not yet fully understood.Methods: Histological analyses were conducted using immunostaining. Whole-body metabolism was tested using glucose tolerance test. Islet hormone secretion was quantified using static batch incubation or dynamic perifusion. beta-cell transmembrane currents, electrical activity and exocytosis were measured using whole-cell patch-clamping and capacitance measurements. Gene expression was studied using m RNA-sequencing and quantitative PCR.Results: Tspan7 is expressed in insulin-containing granules of pancreatic beta-cells and glucagon-producing alpha-cells. Tspan7 knockout mice (Tspan(gamma/-) mouse) exhibit reduced body weight and ad libitum plasma glucose but normal glucose tolerance. Tspan(gamma/- )islets have normal insulin content and glucose- or tolbutamide-stimulated insulin secretion. Depolarisation-triggered Ca2+ current was enhanced in Tspan(gamma/-) beta-cells, but beta-cell electrical activity and depolarisation-evoked exocytosis were unchanged suggesting that exocytosis was less sensitive to Ca2+. TSPAN7 knockdown (KD) in human pseudo-islets led to a significant reduction in insulin secretion stimulated by 20 mM Transcriptomic analyses show that TSPAN7 KD in human pseudo-islets correlated with changes in genes involved in hormone secretion, apoptosis and ER stress. Consistent with rodent beta-cells, exocytotic Ca2+ sensitivity was reduced in a human beta-cell line (EndoC-beta H1) following Tspan7 KD.Conclusion: Tspan7 is involved in the regulation of Ca2+-dependent exocytosis in beta-cells. Its function is more significant in human beta-cells than their rodent counterparts.
- Published
- 2022
162. Terahertz-wave decoding of femtosecond extreme-ultraviolet light pulses
- Author
-
Ilyakov, I., Agarwal, N., Deinert, J-C, Liu, J., Yaroslavtsev, Alexander, Foglia, L., Kurdi, G., Mincigrucci, R., Principi, E., Jakob, G., Klaui, M., Seifert, T. S., Kampfrath, T., Kovalev, S., Carley, R. E., Scherz, A. O., Gensch, M., Ilyakov, I., Agarwal, N., Deinert, J-C, Liu, J., Yaroslavtsev, Alexander, Foglia, L., Kurdi, G., Mincigrucci, R., Principi, E., Jakob, G., Klaui, M., Seifert, T. S., Kampfrath, T., Kovalev, S., Carley, R. E., Scherz, A. O., and Gensch, M.
- Abstract
In recent years, femtosecond extreme-ultraviolet (XUV) and x-ray pulses from free-electron lasers have developed into important probes to monitor processes and dynamics in matter on femtosecond-time and angstrom-length scales. With the rapid progress of versatile ultrafast x-ray spectroscopy techniques and more sophisticated data analysis tools, accurate single-pulse information on the arrival time, duration, and shape of the probing x-ray and XUV pulses becomes essential. Here, we demonstrate that XUV pulses can be converted into terahertz electromagnetic pulses using a spintronic terahertz emitter. We observe that the duration, arrival time, and energy of each individual XUV pulse is encoded in the waveform of the associated terahertz pulses, and thus can be readily deduced from single-shot terahertz time-domain detection.
- Published
- 2022
- Full Text
- View/download PDF
163. Efficient cooling of spintronic THz emitter in reflection geometry
- Author
-
Vogel T., Omar A., Mansourzadeh S., Wulf F., Sabanes N.M., Muller M., Seifert T.S., Weigel A., Jakob G., Klaui M., Pupeza I., Kampfrath T., Saraceno C.J., Vogel T., Omar A., Mansourzadeh S., Wulf F., Sabanes N.M., Muller M., Seifert T.S., Weigel A., Jakob G., Klaui M., Pupeza I., Kampfrath T., and Saraceno C.J.
- Published
- 2022
164. High-Power Excitation of Spintronic THz Emitter in the Back-Cooled Reflection Geometry
- Author
-
Vogel T., Omar A., Mansourzadeh S., Wulf F., Sabanés N.M., Müller M., Seifert T., Weigel A., Jakob G., Kläui M., Pupeza I., Kampfrath T., Saraceno C.J., Vogel T., Omar A., Mansourzadeh S., Wulf F., Sabanés N.M., Müller M., Seifert T., Weigel A., Jakob G., Kläui M., Pupeza I., Kampfrath T., and Saraceno C.J.
- Published
- 2022
165. Average power scaling of THz spintronic emitters efficiently cooled in reflection geometry
- Author
-
Vogel T., Omar A., Mansourzadeh S., Wulf F., Sabanés N.M., Müller M., Seifert T.S., Weigel A., Jakob G., Kläui M., Pupeza I., Kampfrath T., Saraceno C.J., Vogel T., Omar A., Mansourzadeh S., Wulf F., Sabanés N.M., Müller M., Seifert T.S., Weigel A., Jakob G., Kläui M., Pupeza I., Kampfrath T., and Saraceno C.J.
- Published
- 2022
166. Terahertz-wave decoding of femtosecond extreme-ultraviolet light pulses
- Author
-
(0000-0002-5928-7996) Ilyakov, I., Agarwal, N., (0000-0001-6211-0158) Deinert, J.-C., Liu, J., Yaroslavtsev, A., Foglia, L., Kurdi, G., Mincigrucci, R., Principi, E., Jakob, G., Kläui, M., Seifert, T., Kampfrath, T., (0000-0002-2290-1016) Kovalev, S., Carley, R., Scherz, A., Gensch, M., (0000-0002-5928-7996) Ilyakov, I., Agarwal, N., (0000-0001-6211-0158) Deinert, J.-C., Liu, J., Yaroslavtsev, A., Foglia, L., Kurdi, G., Mincigrucci, R., Principi, E., Jakob, G., Kläui, M., Seifert, T., Kampfrath, T., (0000-0002-2290-1016) Kovalev, S., Carley, R., Scherz, A., and Gensch, M.
- Abstract
In recent years, femtosecond extreme-ultraviolet (XUV) and X-ray pulses from free-electron lasers have developed into important probes to monitor processes and dynamics in matter on femtosecond-time and Angstroem-length-scales. With the rapid progress of versatile ultra-fast X-ray spectroscopy techniques and more sophisticated data-analysis tools, accurate single-pulse information on the arrival time, duration and shape of the probing X-ray and XUV pulses becomes essential. Here, we demonstrate for the first time that XUV pulses can be converted into terahertz electromagnetic pulses. We observe that the duration, arrival time and energy of each individual XUV pulse is encoded in the waveform of the associated terahertz pulses and can, thus, be readily deduced from single-shot terahertz time-domain detection.
- Published
- 2022
167. Research data: Terahertz-wave decoding of femtosecond extreme-ultraviolet light pulses
- Author
-
(0000-0002-5928-7996) Ilyakov, I., Agarwal, N., (0000-0001-6211-0158) Deinert, J.-C., Liu, J., Yaroslavtsev, A., Foglia, L., Kurdi, G., Mincigrucci, R., Principi, E., Jakob, G., Kläui, M., Seifert, T., Kampfrath, T., (0000-0002-2290-1016) Kovalev, S., Carley, R., Scherz, A., Gensch, M., (0000-0002-5928-7996) Ilyakov, I., Agarwal, N., (0000-0001-6211-0158) Deinert, J.-C., Liu, J., Yaroslavtsev, A., Foglia, L., Kurdi, G., Mincigrucci, R., Principi, E., Jakob, G., Kläui, M., Seifert, T., Kampfrath, T., (0000-0002-2290-1016) Kovalev, S., Carley, R., Scherz, A., and Gensch, M.
- Abstract
This repository entry contains the research data used for generating the publication "Terahertz-wave decoding of femtosecond extreme-ultraviolet light pulses".
- Published
- 2022
168. MATISSE, the VLTI mid-infrared imaging spectro-interferometer
- Author
-
Lopez, B., Lagarde, S., Petrov, R. G., Jaffe, W., Antonelli, P., Allouche, F., Berio, P., Matter, A., Meilland, A., Millour, F., Robbe-Dubois, S., Henning, Th, Weigelt, G., Glindemann, A., Agocs, T., Bailet, Ch, Beckmann, U., Bettonvil, F., van Boekel, R., Bourget, P., Bresson, Y., Bristow, P., Cruzalebes, P., Eldswijk, E., Caujolle, Y. Fantei, Herrera, J. C. Gonzalez, Graser, U., Guajardo, P., Heininger, M., Hofmann, K-H, Kroes, G., Laun, W., Lehmitz, M., Leinert, C., Meisenheimer, K., Morel, S., Neumann, U., Paladini, C., Percheron, I, Riquelme, M., Schoeller, M., Stee, Ph, Venema, L., Woillez, J., Zins, G., Abraham, P., Abadie, S., Abuter, R., Accardo, M., Adler, T., Alonso, J., Augereau, J-C, Boehm, A., Bazin, G., Beltran, J., Bensberg, A., Boland, W., Brast, R., Burtscher, L., Castillo, R., Chelli, A., Cid, C., Clausse, J-M, Connot, C., Conzelmann, R. D., Danchi, W-C, Delbo, M., Drevon, J., Dominik, C., van Duin, A., Ebert, M., Eisenhauer, F., Flament, S., Frahm, R., Rosas, V. Gamez, Gabasch, A., Gallenne, A., Garces, E., Girard, P., Glazenborg, A., Gonte, F. Y. J., Guitton, F., de Haan, M., Hanenburg, H., Haubois, X., Hocde, V, Hogerheijde, M., ter Horst, R., Hron, J., Hummel, C. A., Hubin, N., Huerta, R., Idserda, J., Isbell, J. W., Ives, D., Jakob, G., Jasko, A., Jochum, L., Klarmann, L., Klein, R., Kragt, J., Kuindersma, S., Kokoulina, E., Labadie, L., Lacour, S., Leftley, J., Le Poole, R., Lizon, J-L, Lopez, M., Lykou, F., Merand, A., Marcotto, A., Mauclert, N., Maurer, T., Mehrgan, L. H., Meisner, J., Meixner, K., Mellein, M., Menut, J. L., Mohr, L., Mosoni, L., Navarro, R., Nussbaum, E., Pallanca, L., Pantin, E., Pasquini, L., Duc, T. Phan, Pott, J-U, Pozna, E., Richichi, A., Ridinger, A., Rigal, F., Rivinius, Th, Roelfsema, R., Rohloff, R-R, Rousseau, S., Salabert, D., Schertl, D., Schuhler, N., Schuil, M., Shabun, K., Soulain, A., Stephan, C., Toledo, P., Tristram, K., Tromp, N., Vakili, F., Varga, J., Vinther, J., Waters, L. B. F. M., Wittkowski, M., Wolf, S., Wrhel, F., Yoffe, G., Lopez, B., Lagarde, S., Petrov, R. G., Jaffe, W., Antonelli, P., Allouche, F., Berio, P., Matter, A., Meilland, A., Millour, F., Robbe-Dubois, S., Henning, Th, Weigelt, G., Glindemann, A., Agocs, T., Bailet, Ch, Beckmann, U., Bettonvil, F., van Boekel, R., Bourget, P., Bresson, Y., Bristow, P., Cruzalebes, P., Eldswijk, E., Caujolle, Y. Fantei, Herrera, J. C. Gonzalez, Graser, U., Guajardo, P., Heininger, M., Hofmann, K-H, Kroes, G., Laun, W., Lehmitz, M., Leinert, C., Meisenheimer, K., Morel, S., Neumann, U., Paladini, C., Percheron, I, Riquelme, M., Schoeller, M., Stee, Ph, Venema, L., Woillez, J., Zins, G., Abraham, P., Abadie, S., Abuter, R., Accardo, M., Adler, T., Alonso, J., Augereau, J-C, Boehm, A., Bazin, G., Beltran, J., Bensberg, A., Boland, W., Brast, R., Burtscher, L., Castillo, R., Chelli, A., Cid, C., Clausse, J-M, Connot, C., Conzelmann, R. D., Danchi, W-C, Delbo, M., Drevon, J., Dominik, C., van Duin, A., Ebert, M., Eisenhauer, F., Flament, S., Frahm, R., Rosas, V. Gamez, Gabasch, A., Gallenne, A., Garces, E., Girard, P., Glazenborg, A., Gonte, F. Y. J., Guitton, F., de Haan, M., Hanenburg, H., Haubois, X., Hocde, V, Hogerheijde, M., ter Horst, R., Hron, J., Hummel, C. A., Hubin, N., Huerta, R., Idserda, J., Isbell, J. W., Ives, D., Jakob, G., Jasko, A., Jochum, L., Klarmann, L., Klein, R., Kragt, J., Kuindersma, S., Kokoulina, E., Labadie, L., Lacour, S., Leftley, J., Le Poole, R., Lizon, J-L, Lopez, M., Lykou, F., Merand, A., Marcotto, A., Mauclert, N., Maurer, T., Mehrgan, L. H., Meisner, J., Meixner, K., Mellein, M., Menut, J. L., Mohr, L., Mosoni, L., Navarro, R., Nussbaum, E., Pallanca, L., Pantin, E., Pasquini, L., Duc, T. Phan, Pott, J-U, Pozna, E., Richichi, A., Ridinger, A., Rigal, F., Rivinius, Th, Roelfsema, R., Rohloff, R-R, Rousseau, S., Salabert, D., Schertl, D., Schuhler, N., Schuil, M., Shabun, K., Soulain, A., Stephan, C., Toledo, P., Tristram, K., Tromp, N., Vakili, F., Varga, J., Vinther, J., Waters, L. B. F. M., Wittkowski, M., Wolf, S., Wrhel, F., and Yoffe, G.
- Abstract
Context. Optical interferometry is at a key development stage. The Very Large Telescope Interferometer (VLTI) has established a stable, robust infrastructure for long-baseline interferometry that is usable by general astronomical observers. The present second-generation instruments offer a wide wavelength coverage and improved performance. Their sensitivity and measurement accuracy lead to data and images of high reliability. Aims. We have developed the Multi AperTure mid-Infrared SpectroScopic Experiment (MATISSE) to access, for the first time, high resolution imaging in a wide spectral domain. Many front-line topics are explored with this new equipment, including: stellar activity and mass loss; planet formation and evolution in the gas and dust disks around young stars; and environment interaction and accretion processes around super massive black holes in active galactic nuclei. Methods. The instrument is a spectro-interferometric imager in the transmission windows called L, M, and N, from 2.8 to 13.0 microns, combining four optical beams from the VLTI's unit or auxiliary telescopes. Its concept, related observing procedure, data reduction, and calibration approach, is the product of 30 years of instrumental research and has benefitted from the expertise developed in the frame of the VLTI's first generation instruments. The instrument utilises a multi-axial beam combination that delivers spectrally dispersed fringes. The signal provides the following quantities at several spectral resolutions: photometric flux, coherent fluxes, visibilities, closure phases, wavelength differential visibilities and phases, and aperture-synthesis imaging. Results. This article provides an overview of the physical principle of the instrument and its functionalities. The motivation of the choice of the instrumental concept and the characteristics of the delivered signal are detailed with a description of the observing modes and of their performance limit. MATISSE offers four spectra
- Published
- 2022
169. Sodium, Glucose and Dysregulated Glucagon Secretion:The Potential of Sodium Glucose Transporters
- Author
-
Armour, Sarah L., Frueh, Alexander, Knudsen, Jakob G., Armour, Sarah L., Frueh, Alexander, and Knudsen, Jakob G.
- Abstract
Diabetes is defined by hyperglycaemia due to progressive insulin resistance and compromised insulin release. In parallel, alpha cells develop dysregulation of glucagon secretion. Diabetic patients have insufficient glucagon secretion during hypoglycaemia and a lack of inhibition of glucagon secretion at higher blood glucose levels resulting in postprandial hyperglucagonaemia, which contributes to the development of hyperglycaemia. Sodium-glucose co-transporter 2 (SGLT2) inhibitors are an efficient pharmacologic approach for the treatment of hyperglycaemia in type 2 diabetes. While SGLT2 inhibitors aim at increasing glycosuria to decrease blood glucose levels, these inhibitors also increase circulating glucagon concentrations. Here, we review recent advances in our understanding of how SGLTs are involved in the regulation of glucagon secretion. Sodium plays an important role for alpha cell function, and a tight regulation of intracellular sodium levels is important for maintaining plasma membrane potential and intracellular pH. This involves the sodium-potassium pump, sodium-proton exchangers and SGLTs. While the expression of SGLT2 in alpha cells remains controversial, SGLT1 seems to play a central role for alpha cell function. Under hyperglycaemic conditions, SGLT1 mediated accumulation of sodium results in alpha cell dysregulation due to altered cellular acidification and ATP production. Taken together, this suggests that SGLT1 could be a promising, yet highly underappreciated drug target to restore alpha cell function and improve treatment of both type 1 and 2 diabetes.
- Published
- 2022
170. Spatial-Temporal Modeling of Forest Gaps Generated by Colonization from Below- and Above-Ground Bark Beetle Species
- Author
-
Zhu, Jun, Rasmussen, Jakob G., Møller, Jesper, Aukema, Brian H., and Raffa, Kenneth F.
- Published
- 2008
- Full Text
- View/download PDF
171. Terahertz-wave decoding of femtosecond extreme-ultraviolet light pulses
- Author
-
Ilyakov, I., primary, Agarwal, N., additional, Deinert, J.-C., additional, Liu, J., additional, Yaroslavtsev, A., additional, Foglia, L., additional, Kurdi, G., additional, Mincigrucci, R., additional, Principi, E., additional, Jakob, G., additional, Kläui, M., additional, Seifert, T. S., additional, Kampfrath, T., additional, Kovalev, S., additional, Carley, R. E., additional, Scherz, A. O., additional, and Gensch, M., additional
- Published
- 2022
- Full Text
- View/download PDF
172. Robust combustor design based on flame transfer function modification
- Author
-
von Saldern, Jakob G. R., primary, Reumschüssel, Johann Moritz, additional, Beuth, Jan Paul, additional, Paschereit, Christian Oliver, additional, and Oberleithner, Kilian, additional
- Published
- 2022
- Full Text
- View/download PDF
173. MATISSE, the VLTI mid-infrared imaging spectro-interferometer
- Author
-
Lopez, B., primary, Lagarde, S., additional, Petrov, R. G., additional, Jaffe, W., additional, Antonelli, P., additional, Allouche, F., additional, Berio, P., additional, Matter, A., additional, Meilland, A., additional, Millour, F., additional, Robbe-Dubois, S., additional, Henning, Th., additional, Weigelt, G., additional, Glindemann, A., additional, Agocs, T., additional, Bailet, Ch., additional, Beckmann, U., additional, Bettonvil, F., additional, van Boekel, R., additional, Bourget, P., additional, Bresson, Y., additional, Bristow, P., additional, Cruzalèbes, P., additional, Eldswijk, E., additional, Fanteï Caujolle, Y., additional, González Herrera, J. C., additional, Graser, U., additional, Guajardo, P., additional, Heininger, M., additional, Hofmann, K.-H., additional, Kroes, G., additional, Laun, W., additional, Lehmitz, M., additional, Leinert, C., additional, Meisenheimer, K., additional, Morel, S., additional, Neumann, U., additional, Paladini, C., additional, Percheron, I., additional, Riquelme, M., additional, Schoeller, M., additional, Stee, Ph., additional, Venema, L., additional, Woillez, J., additional, Zins, G., additional, Ábrahám, P., additional, Abadie, S., additional, Abuter, R., additional, Accardo, M., additional, Adler, T., additional, Alonso, J., additional, Augereau, J.-C., additional, Böhm, A., additional, Bazin, G., additional, Beltran, J., additional, Bensberg, A., additional, Boland, W., additional, Brast, R., additional, Burtscher, L., additional, Castillo, R., additional, Chelli, A., additional, Cid, C., additional, Clausse, J.-M., additional, Connot, C., additional, Conzelmann, R. D., additional, Danchi, W.-C., additional, Delbo, M., additional, Drevon, J., additional, Dominik, C., additional, van Duin, A., additional, Ebert, M., additional, Eisenhauer, F., additional, Flament, S., additional, Frahm, R., additional, Gámez Rosas, V., additional, Gabasch, A., additional, Gallenne, A., additional, Garces, E., additional, Girard, P., additional, Glazenborg, A., additional, Gonté, F. Y. J., additional, Guitton, F., additional, de Haan, M., additional, Hanenburg, H., additional, Haubois, X., additional, Hocdé, V., additional, Hogerheijde, M., additional, ter Horst, R., additional, Hron, J., additional, Hummel, C. A., additional, Hubin, N., additional, Huerta, R., additional, Idserda, J., additional, Isbell, J. W., additional, Ives, D., additional, Jakob, G., additional, Jaskó, A., additional, Jochum, L., additional, Klarmann, L., additional, Klein, R., additional, Kragt, J., additional, Kuindersma, S., additional, Kokoulina, E., additional, Labadie, L., additional, Lacour, S., additional, Leftley, J., additional, Le Poole, R., additional, Lizon, J.-L., additional, Lopez, M., additional, Lykou, F., additional, Mérand, A., additional, Marcotto, A., additional, Mauclert, N., additional, Maurer, T., additional, Mehrgan, L. H., additional, Meisner, J., additional, Meixner, K., additional, Mellein, M., additional, Menut, J. L., additional, Mohr, L., additional, Mosoni, L., additional, Navarro, R., additional, Nußbaum, E., additional, Pallanca, L., additional, Pantin, E., additional, Pasquini, L., additional, Phan Duc, T., additional, Pott, J.-U., additional, Pozna, E., additional, Richichi, A., additional, Ridinger, A., additional, Rigal, F., additional, Rivinius, Th., additional, Roelfsema, R., additional, Rohloff, R.-R., additional, Rousseau, S., additional, Salabert, D., additional, Schertl, D., additional, Schuhler, N., additional, Schuil, M., additional, Shabun, K., additional, Soulain, A., additional, Stephan, C., additional, Toledo, P., additional, Tristram, K., additional, Tromp, N., additional, Vakili, F., additional, Varga, J., additional, Vinther, J., additional, Waters, L. B. F. M., additional, Wittkowski, M., additional, Wolf, S., additional, Wrhel, F., additional, and Yoffe, G., additional
- Published
- 2022
- Full Text
- View/download PDF
174. Cox processes driven by transformed Gaussian processes on linear networks
- Author
-
Møller, Jesper and Rasmussen, Jakob G.
- Subjects
FOS: Mathematics ,Mathematics - Statistics Theory ,Statistics Theory (math.ST) - Abstract
There is a lack of point process models on linear networks. For an arbitrary linear network, we use isotropic covariance functions with respect to the geodesic metric or the resistance metric to construct new models for isotropic Gaussian processes and hence new models for various Cox processes with isotropic pair correlation functions. In particular we introduce three model classes given by log Gaussian, interrupted, and permanental Cox processes on linear networks, and consider for the first time statistical procedures and applications for parametric families of such models. Moreover, we construct new simulation algorithms for Gaussian processes on linear networks and discuss whether the geodesic metric or the resistance metric should be used for the kind of Cox processes studied in this paper.
- Published
- 2022
- Full Text
- View/download PDF
175. Research data: Terahertz-wave decoding of femtosecond extreme-ultraviolet light pulses
- Author
-
Ilyakov, I., Agarwal, N., Deinert, J.-C., Liu, J., Yaroslavtsev, A., Foglia, L., Kurdi, G., Mincigrucci, R., Principi, E., Jakob, G., Kläui, M., Seifert, T., Kampfrath, T., Kovalev, S., Carley, R., Scherz, A., and Gensch, M.
- Subjects
ultrafast ,Terahertz ,Extreme Ultraviolet ,terahertz tomography ,electron bunch diagnostics ,Pulse-resolved - Abstract
This repository entry contains the research data used for generating the publication "Terahertz-wave decoding of femtosecond extreme-ultraviolet light pulses".
- Published
- 2022
- Full Text
- View/download PDF
176. Control of magnetoelastic coupling in Ni/Fe multilayers using He$^+$ ion irradiation
- Author
-
Masciocchi, G., van der Jagt, J. W., Syskaki, M.-A., Lamperti, A., Wolff, N., Lotnyk, A., Langer, J., Kienle, L., Jakob, G., Borie, B., Kehlberger, A., Ravelosona, D., and Kläui, M.
- Subjects
Condensed Matter - Materials Science ,Physics and Astronomy (miscellaneous) ,530 Physics ,Materials Science (cond-mat.mtrl-sci) ,FOS: Physical sciences ,Physics - Applied Physics ,Applied Physics (physics.app-ph) ,530 Physik - Abstract
This study reports the effects of post-growth He+ irradiation on the magneto-elastic properties of a Ni/Fe multi-layered stack. The progressive intermixing caused by He+ irradiation at the interfaces of the multilayer allows us to tune the saturation magnetostriction value with increasing He+ fluences and even to induce a reversal of the sign of the magnetostrictive effect. Additionally, the critical fluence at which the absolute value of the magnetostriction is dramatically reduced is identified. Therefore, insensitivity to strain of the magnetic stack is nearly reached, as required for many applications. All the above-mentioned effects are attributed to the combination of the negative saturation magnetostriction of sputtered Ni and Fe layers and the positive magnetostriction of the Ni xFe1− x alloy at the intermixed interfaces, whose contribution is gradually increased with irradiation. Importantly, the irradiation does not alter the layer polycrystalline structure, confirming that post-growth He+ ion irradiation is an excellent tool to tune the magneto-elastic properties of multilayer samples. An alternative class of spintronic devices can be envisioned with a material treatment able to arbitrary change the magnetostriction with ion-induced “magnetic patterning.”
- Published
- 2022
- Full Text
- View/download PDF
177. Mean flow data assimilation based on physics-informed neural networks
- Author
-
Jakob G. R. von Saldern, Johann Moritz Reumschüssel, Thomas L. Kaiser, Moritz Sieber, and Kilian Oberleithner
- Subjects
Fluid Flow and Transfer Processes ,Mechanics of Materials ,Mechanical Engineering ,Computational Mechanics ,Fluid Dynamics (physics.flu-dyn) ,FOS: Physical sciences ,Physics - Fluid Dynamics ,Condensed Matter Physics - Abstract
Physics-informed neural networks (PINNs) can be used to solve partial differential equations (PDEs) and identify hidden variables by incorporating the governing equations into neural network training. In this study, we apply PINNs to the assimilation of turbulent mean flow data and investigate the method's ability to identify inaccessible variables and closure terms from sparse data. Using high-fidelity large-eddy simulation data and particle image velocimetry measured mean fields, we show that PINNs are suitable for simultaneously identifying multiple missing quantities in turbulent flows and providing continuous and differentiable mean fields consistent with the provided PDEs. In this way, consistent and complete mean states can be provided, which are essential for linearized mean field methods. The presented method does not require a grid or discretization scheme, is easy to implement, and can be used for a wide range of applications, making it a very promising tool for mean field-based methods in fluid mechanics.
- Published
- 2022
- Full Text
- View/download PDF
178. Targeted multicolor in vivo imaging over 1,000 nm enabled by nonamethine cyanines
- Author
-
Venu G. Bandi, Michael P. Luciano, Mara Saccomano, Nimit L. Patel, Thomas S. Bischof, Jakob G. P. Lingg, Peter T. Tsrunchev, Meredith N. Nix, Bastian Ruehle, Chelsea Sanders, Lisa Riffle, Christina M. Robinson, Simone Difilippantonio, Joseph D. Kalen, Ute Resch-Genger, Joseph Ivanic, Oliver T. Bruns, and Martin J. Schnermann
- Subjects
Spectroscopy, Near-Infrared ,Neoplasms ,Optical Imaging ,Antibodies, Monoclonal ,Humans ,Cell Biology ,Molecular Biology ,Biochemistry ,Biotechnology ,Fluorescent Dyes - Abstract
Recent progress has shown that using wavelengths between 1,000 and 2,000 nm, referred to as the shortwave-infrared or near-infrared (NIR)-II range, can enable high-resolution in vivo imaging at depths not possible with conventional optical wavelengths. However, few bioconjugatable probes of the type that have proven invaluable for multiplexed imaging in the visible and NIR range are available for imaging these wavelengths. Using rational design, we have generated persulfonated indocyanine dyes with absorbance maxima at 872 and 1,072 nm through catechol-ring and aryl-ring fusion, respectively, onto the nonamethine scaffold. Multiplexed two-color and three-color in vivo imaging using monoclonal antibody and dextran conjugates in several tumor models illustrate the benefits of concurrent labeling of the tumor and healthy surrounding tissue and lymphatics. These efforts are enabled by complementary advances in a custom-built NIR/shortwave-infrared imaging setup and software package for multicolor real-time imaging.
- Published
- 2022
179. Effects of IL-6 on pyruvate dehydrogenase regulation in mouse skeletal muscle
- Author
-
Biensø, Rasmus S., Knudsen, Jakob G., Brandt, Nina, Pedersen, Per A., and Pilegaard, Henriette
- Published
- 2014
- Full Text
- View/download PDF
180. Perfect Simulation of Hawkes Processes
- Author
-
Møller, Jesper and Rasmussen, Jakob G.
- Published
- 2005
181. Analysis of synchronization in a supermarket refrigeration system
- Author
-
Wisniewski, Rafael, Leth, John, and Rasmussen, Jakob G.
- Published
- 2014
- Full Text
- View/download PDF
182. The Impact of the COVID-19 Pandemic on Tele-ophthalmology-Based Retinal Screening
- Author
-
Marie L. R. Rasmussen, Lasse J. Cehofski, Julie Davies, Carsten Faber, Mads K. Falk, Jakob Grauslund, Michael S. Hansen, Pearse A. Keane, Sundaram Natarajan, Tunde Peto, Yousif Subhi, Charles C. Wykoff, and Danson V. Muttuvelu
- Subjects
Retinal screening ,Tele-ophthalmology ,Healthcare organization ,COVID-19 ,Ophthalmology ,RE1-994 - Abstract
Abstract Introduction This study reports our experiences with systematic retinal screening in Denmark through optometrists with access to tele-ophthalmological services before, during, and after the COVID-19 pandemic. Methods We evaluated an optometrist-based retinal screening system with a referral option for tele-ophthalmological service by a consultant ophthalmologist within the time period of August 1, 2018 to September 30, 2023. The optometrist collected patient history, refraction, best-corrected visual acuity, intraocular pressure, basic slit-lamp examination, 4-in-1 visual field report, and retinal imaging using color fundus 45° photography. Tele-ophthalmological services were provided by consultant ophthalmologists. Within pre-defined periods of pre-COVID-19, COVID-19, and post-COVID-19, we evaluated the rate of referrals to the tele-ophthalmological service, diagnoses made, and referrals to the public healthcare system. Results A total of 1,142,028 unique individuals, which corresponded to 19.1% of the entire population of Denmark, underwent screening by the optometrists; 50,612 (4.4%) of these individuals were referred to the tele-ophthalmological examination by consultant ophthalmologists. A referral for further ophthalmic examination, either at hospital or at an ophthalmic practice, was made for 10,300 individuals (20.4% of those referred for tele-ophthalmology, corresponding to 0.9% of the population screened). The referral rate from the screening to the tele-ophthalmological service increased from before COVID-19 (3.4%) to during COVID-19 (4.3%) and further after COVID-19 (6.4%). This increase coincided with an increasing prevalence of conditions seen in the tele-ophthalmological service. Conclusion During a period of 5 years, 19.1% of the entire population of Denmark underwent retinal screening. This provided an adjunctive health service during a period of severe strain on the public healthcare system, while limiting the number of excessive referrals to the public healthcare system. Temporal trends illustrated an increased pattern of use of a large-scale tele-ophthalmological system.
- Published
- 2024
- Full Text
- View/download PDF
183. Ophthalmological screening guidelines for individuals with Osteogenesis Imperfecta: a scoping review
- Author
-
Sarah Moussa, Jasmine Rocci, Reggie Hamdy, Jakob Grauslund, Marie-Louise Lyster, and Argerie Tsimicalis
- Subjects
Osteogenesis imperfecta ,Brittle bone disease ,Ophthalmology ,Screening ,Prevention ,Review ,Medicine - Abstract
Abstract Background Osteogenesis imperfecta (OI) is a connective tissue disorder in which the Type 1 collagen is defective. The eye is a structure rich in collagen Type 1 and is heavily impacted by the disease. Many vision-threatening eye diseases have been associated with OI. The onset of these diseases also tend to occur at an earlier age in individuals with OI. Despite the research on these risks, appropriate ophthalmological screening or care guidelines for individuals with OI remain unknown. As such, the purpose of this scoping review was to explore and describe existing ophthalmological screening and care guidelines to orient OI patient care. Main body A scoping review based on the Joanna Briggs Institute (JBI) methodology was conducted. A search of databases (PubMed and Medline) was completed in consultation with a research librarian. A total of 256 studies were imported for screening. Primary sources matching the inclusion and exclusion criteria were screened, extracted, and analyzed using Covidence. Conclusion A total of 12 primary articles met inclusion and exclusion criteria, containing case reports, case series and cohort studies. Despite the risk of blindness associated with the consequences of OI on the eye, the primary literature fails to provide detailed screening and care guidelines aimed at identifying disease early. We provide general recommendations based on the review findings to guide the ophthalmological care of patients with OI and call upon the experts to convene globally to create screening guidelines. Further investigations of ophthalmological screening are warranted to limit these vision-threatening risks with early detection and treatment. Standardized ophthalmological screening guidelines for OI remain an area for research.
- Published
- 2024
- Full Text
- View/download PDF
184. Real-world efficacy of intravitreal faricimab for neovascular age-related macular degeneration: a systematic review
- Author
-
Nasratullah Nasimi, Safiullah Nasimi, Jakob Grauslund, Anna Stage Vergmann, and Yousif Subhi
- Subjects
Age-related macular degeneration ,Faricimab ,Efficacy ,Real-world evidence ,Systematic review ,Ophthalmology ,RE1-994 - Abstract
Abstract Background To systematically review the real-world outcomes of intravitreal faricimab treatment in patients with neovascular age-related macular degeneration (nAMD) to evaluate its efficacy and safety in clinical settings. This study was conducted due to the need for real-world evidence to complement the findings from controlled clinical phase-III trials. Methods A systematic literature search was conducted on March 17, 2024, across 11 databases, utilizing search terms specifically tailored each database. All studies were reviewed qualitatively with specific focus on the outcomes of interest: the best-corrected visual acuity (BCVA), the central retina thickness (CRT), and the burden of therapy. Results We identified a total of 22 eligible studies of 1762 eyes from 1618 patients with nAMD. Studies reported that intravitreal faricimab injections maintained BCVA in patients with previously treated eyes and demonstrated statistically significant improvement in patients with treatment-naïve eyes. The CRT was reduced after intravitreal faricimab therapy. Faricimab was well-tolerated, with no significant safety concerns identified, and reduced the overall burden of therapy. Conclusion Real-world studies corroborate the conclusions drawn from phase-III trials regarding faricimab treatment, demonstrating improvement in both visual and anatomical outcomes. Additionally, no significant safety issues were identified, as the treatment was generally well-tolerated and reduced the overall burden of therapy in the real-world settings.
- Published
- 2024
- Full Text
- View/download PDF
185. Unraveling the metabolomic architecture of autism in a large Danish population-based cohort
- Author
-
Filip Ottosson, Francesco Russo, Anna Abrahamsson, Nadia MacSween, Julie Courraud, Kristin Skogstrand, Olle Melander, Ulrika Ericson, Marju Orho-Melander, Arieh S. Cohen, Jakob Grove, Preben Bo Mortensen, David M. Hougaard, and Madeleine Ernst
- Subjects
Autism ,Metabolomics ,Neonatal ,Dried blood spot ,Metabolome ,5-Aminovaleric acid betaine ,Medicine - Abstract
Abstract Background The prevalence of autism in Denmark has been increasing, reaching 1.65% among 10-year-old children, and similar trends are seen elsewhere. Although there are several factors associated with autism, including genetic, environmental, and prenatal factors, the molecular etiology of autism is largely unknown. Here, we use untargeted metabolomics to characterize the neonatal metabolome from dried blood spots collected shortly after birth. Methods We analyze the metabolomic profiles of a subset of a large Danish population-based cohort (iPSYCH2015) consisting of over 1400 newborns, who later are diagnosed with autism and matching controls and in two Swedish population-based cohorts comprising over 7000 adult participants. Mass spectrometry analysis was performed by a timsTOF Pro operated in QTOF mode, using data-dependent acquisition. By applying an untargeted metabolomics approach, we could reproducibly measure over 800 metabolite features. Results We detected underlying molecular perturbations across several metabolite classes that precede autism. In particular, the cyclic dipeptide cyclo-leucine-proline (FDR-adjusted p = 0.003) and the carnitine-related 5-aminovaleric acid betaine (5-AVAB) (FDR-adjusted p = 0.03), were associated with an increased probability for autism, independently of known prenatal and genetic risk factors. Analysis of genetic and dietary data in adults revealed that 5-AVAB was associated with increased habitual dietary intake of dairy (FDR-adjusted p
- Published
- 2024
- Full Text
- View/download PDF
186. MSGene: a multistate model using genetic risk and the electronic health record applied to lifetime risk of coronary artery disease
- Author
-
Sarah M. Urbut, Ming Wai Yeung, Shaan Khurshid, So Mi Jemma Cho, Art Schuermans, Jakob German, Kodi Taraszka, Kaavya Paruchuri, Akl C. Fahed, Patrick T. Ellinor, Ludovic Trinquart, Giovanni Parmigiani, Alexander Gusev, and Pradeep Natarajan
- Subjects
Science - Abstract
Abstract Coronary artery disease (CAD) is the leading cause of death among adults worldwide. Accurate risk stratification can support optimal lifetime prevention. Current methods lack the ability to incorporate new information throughout the life course or to combine innate genetic risk factors with acquired lifetime risk. We designed a general multistate model (MSGene) to estimate age-specific transitions across 10 cardiometabolic states, dependent on clinical covariates and a CAD polygenic risk score. This model is designed to handle longitudinal data over the lifetime to address this unmet need and support clinical decision-making. We analyze longitudinal data from 480,638 UK Biobank participants and compared predicted lifetime risk with the 30-year Framingham risk score. MSGene improves discrimination (C-index 0.71 vs 0.66), age of high-risk detection (C-index 0.73 vs 0.52), and overall prediction (RMSE 1.1% vs 10.9%), in held-out data. We also use MSGene to refine estimates of lifetime absolute risk reduction from statin initiation. Our findings underscore our multistate model’s potential public health value for accurate lifetime CAD risk estimation using clinical factors and increasingly available genetics toward earlier more effective prevention.
- Published
- 2024
- Full Text
- View/download PDF
187. Phenotypic and ancestry-related assortative mating in autism
- Author
-
Jing Zhang, J. Dylan Weissenkampen, Rachel L. Kember, iPSYCH Consortium, Jakob Grove, Anders D. Børglum, Elise B. Robinson, Edward S. Brodkin, Laura Almasy, Maja Bucan, and Ronnie Sebro
- Subjects
Assortative mating ,Autism ,Intellectual disability ,Genetic ancestry ,Polygenic scores ,Linkage disequilibrium ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Abstract Background Positive assortative mating (AM) in several neuropsychiatric traits, including autism, has been noted. However, it is unknown whether the pattern of AM is different in phenotypically defined autism subgroups [e.g., autism with and without intellectually disability (ID)]. It is also unclear what proportion of the phenotypic AM can be explained by the genetic similarity between parents of children with an autism diagnosis, and the consequences of AM on the genetic structure of the population. Methods To address these questions, we analyzed two family-based autism collections: the Simons Foundation Powering Autism Research for Knowledge (SPARK) (1575 families) and the Simons Simplex Collection (SSC) (2283 families). Results We found a similar degree of phenotypic and ancestry-related AM in parents of children with an autism diagnosis regardless of the presence of ID. We did not find evidence of AM for autism based on autism polygenic scores (PGS) (at a threshold of |r|> 0.1). The adjustment of ancestry-related AM or autism PGS accounted for only 0.3–4% of the fractional change in the estimate of the phenotypic AM. The ancestry-related AM introduced higher long-range linkage disequilibrium (LD) between single nucleotide polymorphisms (SNPs) on different chromosomes that are highly ancestry-informative compared to SNPs that are less ancestry-informative (D2 on the order of 1 × 10−5). Limitations We only analyzed participants of European ancestry, limiting the generalizability of our results to individuals of non-European ancestry. SPARK and SSC were both multicenter studies. Therefore, there could be ancestry-related AM in SPARK and SSC due to geographic stratification. The study participants from each site were unknown, so we were unable to evaluate for geographic stratification. Conclusions This study showed similar patterns of AM in autism with and without ID, and demonstrated that the common genetic influences of autism are likely relevant to both autism groups. The adjustment of ancestry-related AM and autism PGS accounted for
- Published
- 2024
- Full Text
- View/download PDF
188. Optical Absorption due to Pr3+ 4f-4f Transitions in PrBa2Cu3Ox (x ≈ 6)
- Author
-
Boyn, R., Zimmermann, H., Müller, U., Jakob, G., Adrian, H., Cardona, Manuel, editor, Fulde, Peter, editor, von Klitzing, Klaus, editor, Queisser, Hans-Joachim, editor, Lotsch, Helmut K. V., editor, Kuzmany, Hans, editor, Mehring, Michael, editor, and Fink, Jörg, editor
- Published
- 1993
- Full Text
- View/download PDF
189. Publisher's Note: 'Mean flow data assimilation based on physics-informed neural networks' [Phys. Fluids 34, 115129 (2022)]
- Author
-
Jakob G. R. von Saldern, Johann Moritz Reumschüssel, Thomas L. Kaiser, Moritz Sieber, and Kilian Oberleithner
- Subjects
Fluid Flow and Transfer Processes ,Mechanics of Materials ,Mechanical Engineering ,Computational Mechanics ,Condensed Matter Physics - Published
- 2022
- Full Text
- View/download PDF
190. Normal and Superconductive Properties of Zinc-Doped YBa2Cu3O7−Thin Films
- Author
-
Tomé-Rosa, C., Walkenhorst, A., Jakob, G., Paulson, M., Wagner, P., Kluge, Th., Adrian, H., Kossowsky, Ram, editor, Raveau, Bernard, editor, Wohlleben, Dieter, editor, and Patapis, Stamatis K., editor
- Published
- 1992
- Full Text
- View/download PDF
191. Laser Velocity and Density Measurement of a Flat Counter Flow Diffusion Flame
- Author
-
Durst, F., Dornberger, E., Jakob, G., Rolon, J. C., Veynante, D., Martin, J. P., Lee, Richard S. L., editor, Whitelaw, James H., editor, and Wung, T. S., editor
- Published
- 1992
- Full Text
- View/download PDF
192. A facile semi-open method for synthesis of non-centrosymmetric superconducting Li2(Pd,Pt)3B bulks and thin films
- Author
-
Badica, P. and Jakob, G.
- Published
- 2010
- Full Text
- View/download PDF
193. Origin of the fast magnetization relaxation at low temperatures in HTS with strong pinning
- Author
-
Miu, L., Ivan, I., Badica, P., Jakob, G., Miu, D., Mele, P., Matsumoto, K., Mukaida, M., Yoshida, Y., Horide, T., Ichinose, A., and Horii, S.
- Published
- 2010
- Full Text
- View/download PDF
194. Peroxisome Proliferator-activated Receptor γ Coactivator 1α or 1β Overexpression Inhibits Muscle Protein Degradation, Induction of Ubiquitin Ligases, and Disuse Atrophy
- Author
-
Brault, Jeffrey J., Jespersen, Jakob G., and Goldberg, Alfred L.
- Published
- 2010
- Full Text
- View/download PDF
195. Hall effect and electronic structure of [formula omitted] films
- Author
-
Schneider, H., Vilanova Vidal, E., Chadov, S., Fecher, G.H., Felser, C., and Jakob, G.
- Published
- 2010
- Full Text
- View/download PDF
196. Sodium, Glucose and Dysregulated Glucagon Secretion: The Potential of Sodium Glucose Transporters
- Author
-
Armour, Sarah L., primary, Frueh, Alexander, additional, and Knudsen, Jakob G., additional
- Published
- 2022
- Full Text
- View/download PDF
197. Vivaldi Antennas for Contactless Sensing of Implant Deflections and Stiffness for Orthopaedic Applications
- Author
-
Wolynski, Jakob G., primary, Ilic, Milan M., additional, Notaros, Branislav M., additional, Labus, Kevin M., additional, Puttlitz, Christian M., additional, and Mcgilvray, Kirk C., additional
- Published
- 2022
- Full Text
- View/download PDF
198. A Non-Compact Effective Impedance Model for Can-to-Can Acoustic Communication: Analysis and Optimization of Damping Mechanisms
- Author
-
Alessandro Orchini, Jakob G. R. von Saldern, and Jonas P. Moeck
- Subjects
Physics ,Acoustics ,Mechanical Engineering ,Energy Engineering and Power Technology ,Aerospace Engineering ,Reflectivity ,symbols.namesake ,Fuel Technology ,Mach number ,Nuclear Energy and Engineering ,symbols ,Communication Analysis ,Combustion chamber ,Porosity ,Electrical impedance ,Eigenvalues and eigenvectors ,Computer Science::Databases ,Network model - Abstract
Can-annular combustors can feature azimuthal instabilities even if the acoustic coupling between the individual cans is weak. Recently, various studies have focused on modeling the acoustic communication between adjacent cans in can-annular systems. In this study, a coupling model is presented that, in contrast to previous models, includes the effect of density fluctuations, mean flow, and dissipative effects at the connection gaps. By assuming plane acoustic waves inside each can and exploiting the discrete rotational symmetry of the can-annular system, the acoustic can-to-can interaction can be represented by an effective Bloch-type impedance. A single can modeled with the effective impedance at the downstream end emulates the acoustic response of the entire can-annular arrangement. We then propose the idea of installing a liner just upstream of the first turbine stage to damp azimuthal instabilities. By using the proposed can-to-can coupling model, we discuss in detail the effect that the impedance of the liner has on the effective reflection coefficient for different Bloch wavenumbers. In the low-frequency limit, we derive an analytical condition for achieving maximum damping at a specific Bloch-number. We show that the damping of azimuthal modes depends on the porosity of the liner, mean flow parameters and the Bloch-structure of the mode. These results suggest the possibility of targeting the damping of modes of certain azimuthal order by geometric variations of the liner or of the connection gap. As an exemplary application of the theory, we set up a network model of a generic industrial 12-can combustor and investigate a cluster of acoustic and thermoacoustic eigenvalues for a varying liner porosity. The findings of this study provide a deeper understanding of the mechanisms that drive the can-to-can acoustic communication, and open the path for devising passive damping strategies aimed at stabilizing specific modes in can-annular combustors.
- Published
- 2021
- Full Text
- View/download PDF
199. Author response: Arginine-vasopressin mediates counter-regulatory glucagon release and is diminished in type 1 diabetes
- Author
-
Angela Kim, Jakob G Knudsen, Joseph C Madara, Anna Benrick, Thomas G Hill, Lina Abdul Kadir, Joely A Kellard, Lisa Mellander, Caroline Miranda, Haopeng Lin, Timothy James, Kinga Suba, Aliya F Spigelman, Yanling Wu, Patrick E MacDonald, Ingrid Wernstedt Asterholm, Tore Magnussen, Mikkel Christensen, Tina Vilsbøll, Victoria Salem, Filip K Knop, Patrik Rorsman, Bradford B Lowell, and Linford JB Briant
- Published
- 2021
- Full Text
- View/download PDF
200. Utilizing Multiple BioMEMS Sensors to Monitor Orthopaedic Strain and Predict Bone Fracture Healing
- Author
-
Conor J. Sutherland, Christian M. Puttlitz, Hilmi Volkan Demir, Jakob G. Wolynski, Emre Unal, Kirk C. McGilvray, Akbar Alipour, School of Electrical and Electronic Engineering, Demir, Hilmi Volkan, and Ünal, Emre
- Subjects
Radiography ,Strain (injury) ,Bone healing ,Article ,law.invention ,Intramedullary rod ,Physics [Science] ,law ,Fracture fixation ,medicine ,Humans ,Orthopedic Procedures ,Biomechanics ,Orthopedics and Sports Medicine ,Microelectromechanical system (MEMS) ,Fracture Healing ,business.industry ,Soft tissue ,Micro-Electrical-Mechanical Systems ,medicine.disease ,Ovine ,Fracture (geology) ,Stress, Mechanical ,business ,Biomedical engineering - Abstract
Current diagnostic modalities, such as radiographs or computed tomography, exhibit limited ability to predict the outcome of bone fracture healing. Failed fracture healing after orthopaedic surgical treatments are typically treated by secondary surgery; however, the negative correlation of time between primary and secondary surgeries with resultant health outcome and medical cost accumulation drives the need for improved diagnostic tools. This study describes the simultaneous use of multiple (n = 5) implantable flexible substrate wireless microelectromechanical (fsBioMEMS) sensors adhered to an intramedullary nail (IMN) to quantify the biomechanical environment along the length of fracture fixation hardware during simulated healing in ex vivo ovine tibiae. This study further describes the development of an antenna array for interrogation of five fsBioMEMS sensors simultaneously, and quantifies the ability of these sensors to transmit signal through overlaying soft tissues. The ex vivo data indicated significant differences associated with sensor location on the IMN (p
- Published
- 2019
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.