25 results on '"Specht K."'
Search Results
2. The effects of background noise on dichotic listening to consonant-vowel syllables.
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Dos Santos Sequeira S, Specht K, Hämäläinen H, and Hugdahl K
- Abstract
Lateralization of verbal processing is frequently studied with the dichotic listening technique, yielding a so called right ear advantage (REA) to consonant-vowel (CV) syllables. However, little is known about how background noise affects the REA. To address this issue, we presented CV-syllables either in silence or with traffic background noise vs. 'babble'. Both 'babble' and traffic noise resulted in a smaller REA compared to the silent condition. The traffic noise, moreover, had a significantly greater negative effect on the REA than the 'babble', caused both by a decreased right ear response as well as an increased left ear response. The results are discussed in terms of alertness and attentional factors.Copyright © 2008 by Elsevier Inc. [ABSTRACT FROM AUTHOR]
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- 2008
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3. Voxel-based morphometry and voxel-based relaxometry in multiple system atrophy—A comparison between clinical subtypes and correlations with clinical parameters
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Minnerop, M., Specht, K., Ruhlmann, J., Schimke, N., Abele, M., Weyer, A., Wüllner, U., and Klockgether, T.
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NEURODEGENERATION , *PERIAQUEDUCTAL gray matter , *BRAIN , *CENTRAL nervous system - Abstract
Abstract: Multiple system atrophy (MSA) is a neurodegenerative disease affecting basal ganglia, brainstem, cerebellum, and intermediolateral cell columns of the spinal cord. Clinically, a cerebellar (MSA-C) and a parkinsonian variant of MSA (MSA-P) are distinguished. We used voxel-based morphometry (VBM) and voxel-based relaxometry (VBR) in 48 MSA patients (32 MSA-C, 16 MSA-P) and 46 controls. In MSA-C, VBM revealed gray matter loss in cerebellum, right thalamus, both putamina and several cortical regions including insular cortex. Gray matter loss in the cerebellum and insular cortex was correlated with disease duration and severity. There was white matter loss in the brainstem, which was correlated with disease duration and severity. VBR analysis in MSA-C showed decreased relaxation rate R2 in cerebellum, pontine brainstem and cortical regions including insular cortex. In MSA-P, gray matter was reduced in cerebellum, dorsal midbrain, both putamina, and several cortical regions including insular cortex. A correlation with disease duration and severity was detected only for some small cortical areas. Direct comparison of MSA-C and MSA-P showed differences only in infratentorial brain regions where structural abnormalities were more pronounced in MSA-C than in MSA-P. In MSA-C, there was a stronger reduction of gray matter in the basal parts of the cerebellum, of white matter in the brainstem and of the relaxation rate R2 in the cerebellum and brainstem. [Copyright &y& Elsevier]
- Published
- 2007
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4. Linking retinotopic fMRI mapping and anatomical probability maps of human occipital areas V1 and V2
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Wohlschläger, A.M., Specht, K., Lie, C., Mohlberg, H., Wohlschläger, A., Bente, K., Pietrzyk, U., Stöcker, T., Zilles, K., Amunts, K., and Fink, G.R.
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BRAIN mapping , *MAGNETIC resonance imaging , *VISUAL cortex , *BRAIN function localization - Abstract
Abstract: Using functional MRI, we characterized field sign maps of the occipital cortex and created three-dimensional maps of these areas. By averaging the individual maps into group maps, probability maps of functionally defined V1 or V2 were determined and compared to anatomical probability maps of Brodmann areas BA17 and BA18 derived from cytoarchitectonic analysis (Amunts, K., Malikovic, A., Mohlberg, H., Schormann, T., Zilles, K., 2000. Brodmann''s areas 17 and 18 brought into stereotaxic space—where and how variable? NeuroImage 11, 66–84). Comparison of areas BA17/V1 and BA18/V2 revealed good agreement of the anatomical and functional probability maps. Taking into account that our functional stimulation (due to constraints of the visual angle of stimulation achievable in the MR scanner) only identified parts of V1 and V2, for statistical evaluation of the spatial correlation of V1 and BA17, or V2 and BA18, respectively, the a priori measure κ was calculated testing the hypothesis that a region can only be part of functionally defined V1 or V2 if it is also in anatomically defined BA17 or BA18, respectively. κ = 1 means the hypothesis is fully true, κ = 0 means functionally and anatomically defined visual areas are independent. When applying this measure to the probability maps, κ was equal to 0.84 for both V1/BA17 and V2/BA18. The data thus show a good correspondence of functionally and anatomically derived segregations of early visual processing areas and serve as a basis for employing anatomical probability maps of V1 and V2 in group analyses to characterize functional activations of early visual processing areas. [Copyright &y& Elsevier]
- Published
- 2005
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5. Predictive array analysis of breast cancer
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Specht, K., Smida, J., Nährig, J., Reich, U., Schnitzbauer, U., Mader, M., Budczies, J., Tornow, S., Harbeck, N., Kiechle, M., and Höfler, H.
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- 2004
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6. Prediction of response to neoadjuvant chemotherapy of Barrett's carcinomas by quantitative gene expression analysis
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Langer, R., Specht, K., Becker, K., Ewald, P., Busch, R., Feith, M., Stein, H.J., Siewert, J.R., Sarbia, M., and Höfler, H.
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- 2004
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7. Physical exercise augmented cognitive behaviour therapy for older adults with generalised anxiety disorder (PEXACOG): a feasibility study for a randomized controlled trial.
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Sirevåg, Kristine, Stavestrand, S. H., Sjøbø, T., Endal, T. B., Nordahl, H. M., Andersson, E., Nordhus, I. H., Rekdal, Å., Specht, K., Hammar, Å., Halmøy, A., Mohlman, J., Hjelmervik, H., Thayer, J. F., and Hovland, A.
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GENERALIZED anxiety disorder , *BEHAVIOR therapy , *OLDER people , *COGNITIVE therapy , *RANDOMIZED controlled trials , *ANXIETY disorders , *WORRY - Abstract
Background: Generalised anxiety disorder (GAD) is a frequent and severe disorder among older adults. For older adults with GAD the effect of the recommended treatment, cognitive behaviour therapy (CBT), is reduced. Physical exercise (PE) may enhance the effect of CBT by improving cognitive function and increasing levels of brain-derived neurotrophic factor (BDNF), a predictor of the effect of CBT in patients with anxiety. The aim of the study was to assess the feasibility of a randomized controlled trial (RCT) investigating treatment effect of the combination of CBT and PE for GAD in a sample of older adults, including procedures for assessment and treatment. Methods: Four participants aged 62–70 years (M = 65.5, SD = 3.2) with a primary diagnosis of GAD were included. Participants received 15 weeks of PE in combination with 10 weeks of CBT. Participants completed self-report measures, and clinical, biological, physiological and neuropsychological tests at pre-, interim- and post-treatment. Results: Procedures, protocols, and results are presented. One participant dropped out during treatment. For the three participants completing, the total adherence to PE and CBT was 80% and 100%, respectively. An independent assessor concluded that the completers no longer fulfilled the criteria for GAD after treatment. Changes in self-report measures suggest symptom reduction related to anxiety and worry. The sample is considered representative for the target population. Conclusions: The results indicate that combining CBT and PE for older adults with GAD is feasible, and that the procedures and tests are suitable and manageable for the current sample. Trial registration: ClinicalTrials.gov, NCT02690441. Registered on 24 February 2016, https://clinicaltrials.gov/ct2/show/NCT02690441. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
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8. Physical exercise augmented cognitive behaviour therapy for older adults with generalised anxiety disorder (PEXACOG): a feasibility study for a randomized controlled trial.
- Author
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Sirevåg, Kristine, Stavestrand, S. H., Sjøbø, T., Endal, T. B., Nordahl, H. M., Andersson, E., Nordhus, I. H. K., Rekdal, Specht, K., Hammar, Halmøy, A., Mohlman, J., Hjelmervik, H., Thayer, J. F., and Hovland, A.
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GENERALIZED anxiety disorder , *BEHAVIOR therapy , *OLDER people , *COGNITIVE therapy , *RANDOMIZED controlled trials , *ANXIETY disorders , *WORRY - Abstract
Background: Generalised anxiety disorder (GAD) is a frequent and severe disorder among older adults. For older adults with GAD the effect of the recommended treatment, cognitive behaviour therapy (CBT), is reduced. Physical exercise (PE) may enhance the effect of CBT by improving cognitive function and increasing levels of brain-derived neurotrophic factor (BDNF), a predictor of the effect of CBT in patients with anxiety. The aim of the study was to assess the feasibility of a randomized controlled trial (RCT) investigating treatment effect of the combination of CBT and PE for GAD in a sample of older adults, including procedures for assessment and treatment. Methods: Four participants aged 62–70 years (M = 65.5, SD = 3.2) with a primary diagnosis of GAD were included. Participants received 15 weeks of PE in combination with 10 weeks of CBT. Participants completed self-report measures, and clinical, biological, physiological and neuropsychological tests at pre-, interim- and post-treatment. Results: Procedures, protocols, and results are presented. One participant dropped out during treatment. For the three participants completing, the total adherence to PE and CBT was 80% and 100%, respectively. An independent assessor concluded that the completers no longer fulfilled the criteria for GAD after treatment. Changes in self-report measures suggest symptom reduction related to anxiety and worry. The sample is considered representative for the target population. Conclusions: The results indicate that combining CBT and PE for older adults with GAD is feasible, and that the procedures and tests are suitable and manageable for the current sample. Trial registration: ClinicalTrials.gov, NCT02690441. Registered on 24 February 2016, https://clinicaltrials.gov/ct2/show/NCT02690441. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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9. Cultivating change: Exploring policies, challenges, and solutions to support city region food systems development in six European countries.
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Steines, A.K., D'Ostuni, M., Wissman, A., Specht, K., Iodice, C., Fox-Kämper, R., Monticone, F., Righini, I., Saint-Ges, V., Samoggia, A., and Orsini, F.
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CITIES & towns , *URBANIZATION , *URBAN agriculture , *URBAN policy , *AGRICULTURAL industries - Abstract
City Region Food System (CRFS) initiatives exist in various forms, featuring a diversified set of social, economic and environmental performances and impacts. The CRFS approach includes all actors, processes, and relationships involved in the food chain (from production and processing to the distribution and consumption of food) in a given geographical area. Therefore, it encompasses the most crucial elements for facilitating interactions between rural, peri-urban and urban areas. Existing policies may have the potential to support or hinder the progress and development of CRFS initiatives. This research addresses international and national policies as well as the related constraints and challenges that affect CRFS development in six European countries. The overall goal of this research relates to the research questions of how this all-encompassing policy system impacts urban food production and how stakeholders, researchers, and practitioners perceive the current policies at the multi-national level. Various strategic plans with positive and negative impacts, as well as current policy gaps, were compiled from both theoretical and practical perspectives. Data collection was conducted through desktop research, stakeholder interviews and a workshop. Thus, expanding upon the analysis of the results, the study discusses the current challenges in the field of CRFS policies by providing examples, proposing potential improvements, and offering recommendations. • According to the interviewed stakeholders, planning laws restrict the possibilities for food production in cities. • Legal frameworks prevent the marketing and sale of food produced by non-commercial actors or informal farmers. • There is a need to expand vocational training in the agricultural sector and to offer practice-oriented courses. • Development of sustainable food strategies has a positive impact on CRFS initiatives. [ABSTRACT FROM AUTHOR]
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- 2024
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10. Callosal tissue loss in multiple system atrophy--a one-year follow-up study.
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Minnerop M, Lüders E, Specht K, Ruhlmann J, Schimke N, Thompson PM, Chou YY, Toga AW, Abele M, Wüllner U, Klockgether T, Minnerop, Martina, Lüders, Eileen, Specht, Karsten, Ruhlmann, Jürgen, Schimke, Nicole, Thompson, Paul M, Chou, Yi Y, Toga, Arthur W, and Abele, Michael
- Abstract
Multiple system atrophy (MSA) is a neurodegenerative disease not only affecting the basal ganglia, brainstem, cerebellum, and intermediolateral cell columns of the spinal cord but also the cerebral cortex. Clinically, cerebellar (MSA-C) and parkinsonian variants of MSA (MSA-P) are distinguished. We investigated 14 MSA patients (10 MSA-C, 4 MSA-P, men: 7, women: 7; age: 61.1 ± 3.3 years) and 14 matched controls (men: 7, women: 7; age: 58.6 ± 5.1 years) with voxel-based morphometry (VBM) to analyze gray and white matter differences both at baseline and at follow-up, 1 year later. Baseline comparisons between patients and controls confirmed significantly less gray matter in MSA in the cerebellum and cerebral cortex, and significantly less white matter in the cerebellar peduncles and brainstem. Comparisons of tissue-loss profiles (i.e., baseline versus follow-up) between patients and controls, revealed white matter reduction in MSA along the middle cerebellar peduncles, reflecting degeneration of the ponto-cerebellar tract as a particularly prominent and progressive morphological alteration in MSA. Comparisons between baseline and follow-up, separately performed in patients and controls, revealed additional white matter reduction in MSA along the corpus callosum at follow-up. This was replicated through additional shape-based analyses indicating a reduced callosal thickness in the anterior and posterior midbody, extending posteriorly into the isthmus. Callosal atrophy may possibly reflect a disease-specific pattern of neurodegeneration and cortical atrophy, fitting well with the predominant impairment of motor functions in the MSA patients. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
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11. Transpalpebral tonometry: reliability and comparison with Goldmann applanation tonometry and palpation in healthy volunteers.
- Author
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Troost, A., Yun, S. H., Specht, K., Krummenauer, F., and Schwenn, O.
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TONOMETRY , *GLAUCOMA diagnosis , *PHYSICAL diagnosis , *INTRAOCULAR pressure , *BODY fluid pressure , *BLOOD pressure - Abstract
Background/aim: TGDc-01 in a new, portable, transpalpebral tonometry device. The aim of this study was to evaluate the reproducibility of this method, including intraobserver and interobserver deviations, and to compare the results with those of Goldmann applanation tonometry and palpation of intraocular pressure (IOP). Methods: A total of 40 eyes of 20 healthy volunteers were included. Two independent parallel observer (1 and 2) performed three replicate measurements per eye, respectively, both using TGDc01 tonometry, one observer (3) performed three replicate measurements using Goldmann applanation tonometry, and one observer (4) measured the IOP via palpation. Intraindividual deviations within ad between both observers using TGDc-01 tonometry and between all three methods were investigated about clinically relevance by comparison of medians and quartiles, statistically significance by pairwise sign tests. Comparisons between observers and methods were based on averaged IOP values of the three individual measurements for each observer and each patient. Intraobserver deviations were analysed by means of Friedman tests. Results: Observers 1 and 2 showed a statistically significant intraobserver deviation when using TGCc-01 (Friedman p = 0.007 for observer 1 and p = 0.002 for observer 2). There was no statistically significant interobserver deviation between observers 1 and 2 (sign test p = 0.200); however, in 45% of the eyes interobserver deviations were larger than plus or minus 3 mm Hg. The median intraindividual deviation between TGDc-01 and Goldmann (TGDc-01 minus Goldmann) was 0 mm Hg (interquartile range -1; 2 mm Hg; sign test p = 0.522); but deviations were larger than plus or minus 3 mm Hg for 38% of the 40 eyes. Median intraindividual deviation between TGDc-01 and palpation (TGDc-01 minus palpation) was -2 mm Hg (interquartile range -4; 1 mm Hg; sign test p = 0.018), but deviations were larger than plus or minus 3 mmHg for 43% of eyes. Median intraindividual deviation between Goldmann and palpation (Palpation minus Goldmann) was 2 mm Hg (interquartile range -2; 4 mm Hg; p = 0.429), but deviations were larger than plus or minus 3 mm Hg in 48% of the eyes. Conclusion: Interobserver deviations using TGDc-01 tonometry and intraindividual deviations between TGDc-01 tonometry, Goldmann applanation tonometry, and palpation of IOP were found to be clinically relevant. Thus, according to our results TGDc-01 could not be established as a substitute or diagnostic alternative method for Goldmann applanation tonometry. But as deviations between TGDc-01 and Goldmann turned out smaller than between palpation of IOP and Goldmann, TGDc-01 seems to provide a better choice for tonometry in patients, in whom Goldmann applanation tonometry is not possible. [ABSTRACT FROM AUTHOR]
- Published
- 2005
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12. Correction to: Physical exercise augmented cognitive behaviour therapy for older adults with generalised anxiety disorder (PEXACOG): a feasibility study for a randomized controlled trial.
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Sirevåg, Kristine, Stavestrand, S. H., Sjøbø, T., Endal, T. B., Nordahl, H. M., Andersson, E., Nordhus, I. H., Rekdal, Å, Specht, K., Hammar, Å, Halmøy, A., Mohlman, J., Hjelmervik, H., Thayer, J. F., and Hovland, A.
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GENERALIZED anxiety disorder , *BEHAVIOR therapy , *COGNITIVE therapy , *RANDOMIZED controlled trials , *OLDER people , *ANXIETY disorders - Abstract
References 1 Sirevåg K, Stavestrand SH, Sjøbø T. Physical exercise augmented cognitive behaviour therapy for older adults with generalised anxiety disorder (PEXACOG): a feasibility study for a randomized controlled trial. B Correction: BioPsychoSocial Med 17, 25 (2023) b https://doi.org/10.1186/s13030-023-00280-7 Following publication of the original article [[1]], the authors reported errors in the author names, which have been corrected from: I. H. K. Nordhus to I. H. Nordhus, Rekdal to Å. Rekdal, and Hammar to Å. Hammar. [Extracted from the article]
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- 2023
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13. Congenital prosopagnosia: multistage anatomical and functional deficits in face processing circuitry.
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Dinkelacker, V., Grüter, M., Klaver, P., Grüter, T., Specht, K., Weis, S., Kennerknecht, I., Elger, C. E., and Fernandez, G.
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PROSOPAGNOSIA , *FACE perception , *MAGNETIC resonance imaging , *VOXEL-based morphometry , *LONG-term memory , *PATIENTS - Abstract
Face recognition is a primary social skill which depends on a distributed neural network. A pronounced face recognition deficit in the absence of any lesion is seen in congenital prosopagnosia. This study investigating 24 congenital prosopagnosic subjects and 25 control subjects aims at elucidating its neural basis with fMRI and voxel-based morphometry. We found a comprehensive behavioral pattern, an impairment in visual recognition for faces and buildings that spared long-term memory for faces with negative valence. Anatomical analysis revealed diminished gray matter density in the bilateral lingual gyrus, the right middle temporal gyrus, and the dorsolateral prefrontal cortex. In most of these areas, gray matter density correlated with memory success. Decreased functional activation was found in the left fusiform gyrus, a crucial area for face processing, and in the dorsolateral prefrontal cortex, whereas activation of the medial prefrontal cortex was enhanced. Hence, our data lend strength to the hypothesis that congenital prosopagnosia is explained by network dysfunction and suggest that anatomic curtailing of visual processing in the lingual gyrus plays a substantial role. The dysfunctional circuitry further encompasses the fusiform gyrus and the dorsolateral prefrontal cortex, which may contribute to their difficulties in long-term memory for complex visual information. Despite their deficits in face identity recognition, processing of emotion related information is preserved and possibly mediated by the medial prefrontal cortex. Congenital prosopagnosia may, therefore, be a blueprint of differential curtailing in networks of visual cognition. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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14. Gene-expression signature of adhesion/growth-regulatory tissue lectins (galectins) in transitional cell cancer and its prognostic relevance.
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Langbein, S., Brade, J., Badawi, J. K., Hatzinger, M., Kaltner, H., Lensch, M., Specht, K., André, S., Brinck, U., Alken, P., and Gabius, H.-J.
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CANCER cells , *GENE expression , *GROWTH regulators , *LECTINS , *POLYMERASE chain reaction - Abstract
Aims: Lectins, and especially galectins, appear to be important in malignancy-associated processes. The aim was to analyse comprehensively the presence of galectins in urothelial tumours. Methods and results: Non-cross-reactive antibodies against seven family members from the three subgroups (prototype: galectin-1, -2 and -7; chimera type: galectin-3; tandem-repeat type: galectin-4, -8 and -9) were used. Gene expression was monitored in specimens of normal urothelium, fresh tumour tissue and cell lines by real-time polymerase chain reaction (PCR). The presence and evidence of tumour-associated up-regulation were shown for galectin-1 and -3. This was less clear-cut for galectin-4 and -8. Galectin-7 was expressed in all cell lines; galectin-2 and -9 were detected at comparatively low levels. Galectin-2, -3 and -8 up-regulation was observed in superficial tumours, but not in muscle-invasive tumours ( P < 0.05). Immunoreactivity correlated with tumour grading for galectin-1, -2 and -8, and disease-dependent mortality correlated with galectin-2 and -8 expression. Binding sites were visualized using labelled galectins. Conclusions: The results demonstrate a complex expression pattern of the galectin network in urothelial carcinomas. Galectin-1, -2, -3 and -8 are both potential disease markers and also possible targets for bladder cancer therapy. [ABSTRACT FROM AUTHOR]
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- 2007
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15. Second generation of meniscus transplantation: in-vivo study with tissue engineered meniscus replacement.
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Martinek, V., Ueblacker, P., Bräun, K., Nitschke, S., Mannhardt, R., Specht, K., Gansbacher, B., and Imhoff, A.
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MENISCUS (Anatomy) , *TRANSPLANTATION of organs, tissues, etc. , *TISSUE engineering , *TISSUE culture , *BIOPSY , *CLINICAL pathology - Abstract
Introduction: The options available after meniscus loss offer only limited chances for a long-term success. In the following experimental study, we investigated the effect of meniscus tissue engineering on properties of the collagen meniscus implant (CMI). Methods: Autologous fibrochondrocytes, obtained per biopsy from adult Merino sheep ( n=25), were released from the matrix, cultured in-vitro and seeded into CMI scaffolds ( n=10, group 1). Following a 3-week in-vitro culture, the tissue engineered menisci were used for autologous transplantation. Macroscopical and histological evaluation were performed in comparison with non-seeded CMI controls ( n=10, group 2) and with meniscus-resected controls ( n=5, group 3) after 3 weeks (each 1 animal group 1 and 2) and 3 months. Results: The lameness score did not show any difference between the groups. Meniscus tissue was found in seven knee joints (group 1), in five knee joints (group 2) and in two knee joints (group 3). The size of the transplants reduced from 25.9±4.5 to 20.1±10.8 mm (group 1) and from 25.9±1.5 to 14.4±12.5 mm (group 2). Histologically, enhanced vascularisation, accelerated scaffold re-modelling, higher content of extra-cellular matrix and lower cell number were noted in the pre-seeded menisci in comparison with non-seeded controls. Dense high-cellular fibrous scar tissue was found in two of five cases in the resection control group. Conclusion: Tissue engineering of meniscus with autologous fibrochondrocytes demonstrates a macroscopic and histological improvement of the transplants. However, further development of the methods, especially of the scaffold and of the cell-seeding procedure must prove the feasibility of this procedure for human applications. [ABSTRACT FROM AUTHOR]
- Published
- 2006
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16. Spatial attention: more than intrinsic alerting?
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Sturm, W., Schmenk, B., Fimm, B., Specht, K., Weis, S., Thron, A., and Willmes, K.
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BRAIN stem , *PREFRONTAL cortex , *FRONTAL lobe , *MOTOR cortex , *MOTOR unit , *MOTOR ability , *VISUAL fields - Abstract
It has been proposed that the right hemisphere alerting network co-activates, either directly or via the brainstem, the attention system in the parietal cortex involved in spatial attention. The observation that impaired alertness and sustained attention can predict the outcome of neglect might suggest such a relationship, too. In the present fMRI study, we intended to analyse and compare the functional anatomy of two attentional conditions both involving intrinsic (endogenous) alerting and fixation but differing with respect to the degree of spatially distributed attention by using the same paradigm under two different attentional conditions. In a group of ten participants, both a focused and a distributed visuospatial attention condition evoked similar patterns of activation in dorsolateral prefrontal regions, in the anterior cingulate gyrus, in the superior and inferior parietal cortex as well as in the superior temporal gyrus and in the thalamus. These activation foci were stronger in the right hemisphere under both conditions. After subtraction of the alertness condition with focused spatial attention, distributed spatial attention with stimuli appearing at unpredictable locations within both visual fields induced additional bilateral activations only in the left and right superior parietal cortex and in the right precuneus suggesting that these regions are specific for a more widespread dispersion of spatial attention. [ABSTRACT FROM AUTHOR]
- Published
- 2006
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17. CARIBIC--Civil Aircraft for Global Measurement of Trace Gases and Aerosols in the Tropopause Region.
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Brenninkmeijer, C.A.M., Crutzen, P.J., Fischer, H., Gusten, H., Hans, W., Heinrich, G., Heintzenberg, J., Hermann, M., Immelmann, T., Kersting, D., Maiss, M., Nolle, M., Pitscheider, A., Pohlkamp, H., Scharffe, D., Specht, K., and Wiedensohler, A.
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METEOROLOGICAL instruments , *AEROSOLS - Abstract
The deployment of measurement equipment in passenger aircraft for the observation of atmospheric trace constituents is described. The package of automated instruments that is installed in a one-ton-capacity aircraft freight container positioned in the forward cargo bay of a Boeing 767 ER can register a vast amount of atmospheric data during regular long-distance flights. The air inlet system that is mounted on the fuselage directly below the container comprises an aerosol inlet, a separate inlet for trace-gas sampling, and an air exhaust. All instru-ments, the central computer, and power supply are mounted in aviation-approved racks that slide into the reinforced container. The current instrument package comprises a fast-response chemiluminescence sensor and a conventional UV absorption detector for O3 ; a gas chromatograph for CO; two condensation nuclei counters for particles larger than 5 and 12 nm; and a 12-canister large-capacity whole air sampler for laboratory trace-gas analysis and isotopic analysis of CO2 , CO, CH4 , and N2 0. First measurement results of the operational Civil Aircraft for Remote Sensing and In Situ Measurements in Troposphere and Lower Stratosphere Based on the Instrumentation Container Concept (CARIBIC) container are reported. [ABSTRACT FROM AUTHOR]
- Published
- 1999
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18. Reviewing chemical and biological risks in urban agriculture: A comprehensive framework for a food safety assessment of city region food systems.
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Buscaroli, E., Braschi, I., Cirillo, C., Fargue-Lelièvre, A., Modarelli, G.C., Pennisi, G., Righini, I., Specht, K., and Orsini, F.
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URBAN agriculture , *FOOD safety , *FOOD security , *FOOD chemistry , *SAFETY factor in engineering - Abstract
Attention to urban agriculture (UA) has recently grown among practitioners, scientists, and the public, resulting in several initiatives worldwide. Despite the positive perception of modern UA and locally grown, fresh produce, the potential food safety risks connected to these practices may be underestimated, leading to regulatory gaps. Thus, there is a need for assessment tools to evaluate the food safety risks connected to specific UA initiatives, to assist practitioners in self-evaluation and control, and to provide policy makers and scholars a means to pursue and assess food safety in city regions, avoiding either a lack or an excess of regulation that could ultimately hinder the sector. To address this aim, this paper reviews the most recent and relevant literature on UA food safety assessments. Food safety indicators were identified first. Then, a food safety assessment framework for UA initiatives was developed. The framework uses business surveys and food analyses (if available) as a data source for calculating a food safety index for single UA businesses and the whole UA landscape of a given city region. The proposed framework was designed to allow its integration into the CRFS (City Region Food System) toolkit developed by FAO (Food and Agriculture Organization of the United Nations), RUAF foundation (Resource Centres on Urban Agriculture and Food Security) and Wilfrid Laurier University. • Connection of several biological and chemical food safety risks to UA techniques. • Identifiable food safety risk factors for diverse UA practices. • Framework for the assessment of food safety levels of UA initiatives. • Development of a risk-based assessment that can be integrated into the FAO CRFS framework. [ABSTRACT FROM AUTHOR]
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- 2021
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19. SP-0518: Development and validation of a deltaradiomics response model for neoadjuvant radiotherapy of soft tissue sarcomas.
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Peeken, J., Chen, E., Hippe, D.S., Specht, K., Kim, E., Mayr, N.A., Nyflot, M.J., and Combs, S.E.
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SARCOMA , *RADIOTHERAPY - Abstract
Symposium: Mobility grants report back SP-0518: Development and validation of a deltaradiomics response model for neoadjuvant radiotherapy of soft tissue sarcomas J. Peeken, E. Chen, D.S. Hippe, K. Specht, E. Kim, N.A. Mayr, M.J. Nyflot, S.E. Combs. [Extracted from the article]
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- 2020
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20. 1568 - Pathological fracture and prognosis of high-grade osteosarcoma of the extremities. An analysis of 2,847 consecutive cooperative osteosarcoma study group (COSS) patients.
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Kelley, L., Schlegel, M., Hecker-Nolting, S., Rössig, C., Reichardt, P., Kager, L., Kühne, T., Gosheger, G., Windhager, R., Specht, K., Kevric, M., Nathrath, M., Tunn, P.U., Baumhoer, D., Werner, M., Von Kalle, T., Burdach, S., Bielack, S., and Von Luettichau, I.
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OSTEOSARCOMA , *EXTREMITIES (Anatomy) , *SPONTANEOUS fractures , *PROGNOSIS - Published
- 2017
- Full Text
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21. Gene expression analysis in association with response and survival of neoadjuvant treated gastric cancers patients
- Author
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Napieralski, R., Ott, K., Kremer, M., Specht, K., Becker, K., Lordick, F., Fink, U., Vogelsang, H., Siewert, J.R., Höfler, H., and Keller, G.
- Published
- 2004
- Full Text
- View/download PDF
22. Severe nigrostriatal degeneration without clinical parkinsonism in patients with POLG mutations.
- Author
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Tzoulis, C., Tran, G.T., Schwarzlmüller, T., Specht, K., Haugarvoll, K., Balafkan, N., Lilleng, P.K., Miletic, H., Martin, B., and Bindoff, L.A.
- Published
- 2013
- Full Text
- View/download PDF
23. Future Developments for Non-Destructive 3D Plant and Root Imaging
- Author
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Vandenhirtz, J., Vandenhirtz, D., Eberius, M., Jung, A., van der Heijden, R., Koch, M., and Specht, K.
- Published
- 2010
- Full Text
- View/download PDF
24. Primary extramedullary plasmacytoma: high frequency of breaks involving 14q32 and deletions of 13q detected by interphase cytogenetics
- Author
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Bink, K., Kremer, M., Ott, G., Specht, K., Mandl-Weber, S., Quintanilla-Martinez, L., and Fend, F.
- Published
- 2004
- Full Text
- View/download PDF
25. LETTERS.
- Author
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Banister, Marjorie, Bowsher, Norman N., Dewar, Jackson D., Hunt Jr., George E., Cochran, Stuart W., Nauka, Wayne L., Walters, E. M., Steinmeyer, Marjorie J., Bangeman, John O., Le Gate, Bess, Specht, K. F., Grahm, Milton L., Tauber, Abraham, Newhouse, K. O., Hair, Sammie N., Kipke, Harry G., Green, E. H., King, Elizabeth S., and England, J. Kenneth
- Subjects
- *
LETTERS to the editor , *TAXATION , *ARMED forces , *EXHIBITION buildings - Abstract
Presents letters to the editor referencing articles and topics discussed in previous issues. "Speaking Out: Change Those Unfair Tax Laws" which discusses rental value of owner-occupied houses; "We Waste a Million Kids a Year," by Mary Conway Kohler which talks about armed services for about 90 percent for the kids; "New York's Colossal Coliseum," by Stanley Frank which expresses the value of exposition centers in the U.S.
- Published
- 1962
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