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Institution

University of Marburg

EducationMarburg, Germany
About: University of Marburg is a education organization based out in Marburg, Germany. It is known for research contribution in the topics: Population & Virus. The organization has 23195 authors who have published 42907 publications receiving 1506069 citations. The organization is also known as: Philipps University of Marburg & Philipps-Universität.
Topics: Population, Virus, Gene, Exciton, Photoluminescence


Papers
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Journal ArticleDOI
TL;DR: The occurrence of sharp Fano resonances in planar terahertz metamaterials is reported by introducing a weak asymmetry in a two gap split ring resonator by exploiting minute structural variations of the Fano resonance.
Abstract: We report on the occurrence of sharp Fano resonances in planar terahertz metamaterials by introducing a weak asymmetry in a two gap split ring resonator. As the structural symmetry of the metamaterial is broken a Fano resonance evolves in the low-frequency flank of the symmetric fundamental dipole mode resonance. This Fano resonance can have much higher Q factors than that known from single gap split ring resonators. Supporting simulations indicate a Q factor of 50 for lowest degree of asymmetry. The Q factor decreases exponentially with increasing asymmetry. Hence, minute structural variations allow for a tuning of the Fano resonance. Such sharp resonances could be exploited for biochemical sensing. Besides, the strong current oscillations excited at the Fano resonance frequency could lead to the design of novel terahertz narrow band emitters.

375 citations

Journal ArticleDOI
TL;DR: It is demonstrated that Arabidopsis cryptochrome activation by blue light can be inhibited by green light in vivo consistent with a change of the cofactor redox state, and results indicate that cry1 activation via blue light initiates formation of a flavosemiquinone signaling state that can be converted bygreen light to an inactive form.

374 citations

Proceedings ArticleDOI
24 Sep 2000
TL;DR: An annotated database with 70 nighttime ECG recordings has been created to support polysomnographic studies in sleep laboratories with expensive equipment and attending personnel, based on visual scoring of disordered breathing during sleep.
Abstract: Sleep apnea is a sleep disorder with a high prevalence in the adult male population. Sleep apnea is regarded as an independent risk factor for cardiovascular sequelae such as ischemic heart attacks and stroke. The diagnosis of sleep apnea requires polysomnographic studies in sleep laboratories with expensive equipment and attending personnel. Sleep apnea can be treated effectively using nasal ventilation therapy (nCPAP). Early recognition and selection of patients with sleep related breathing disorders is an important task. Although it has been suggested that this can be done on the basis of the ECG, careful quantitative studies of the accuracy of such techniques are needed. An annotated database with 70 nighttime ECG recordings has been created to support such studies. The annotations were based on visual scoring of disordered breathing during sleep.

373 citations

Journal ArticleDOI
TL;DR: In this paper, a many-body theory based on an equation-of-motion approach for the interacting electron, hole, photon, and phonon system is reviewed, and the infinite hierarchy of coupled equations for the relevant correlation functions is systematically truncated using a cluster-expansion scheme.

373 citations

Journal ArticleDOI
TL;DR: A genome-wide association study with pooled DNA in adult attention-deficit/hyperactivity disorder (ADHD) employing ~500K SNP markers identifies novel risk genes and reveals remarkable overlap with findings from recent GWA scans in substance use disorders.
Abstract: A genome-wide association (GWA) study with pooled DNA in adult attention-deficit/hyperactivity disorder (ADHD) employing ~500K SNP markers identifies novel risk genes and reveals remarkable overlap with findings from recent GWA scans in substance use disorders. Comparison with results from our previously reported high-resolution linkage scan in extended pedigrees confirms several chromosomal loci, including 16q23.1-24.3 which also reached genome-wide significance in a recent meta-analysis of seven linkage studies (Zhou et al. in Am J Med Genet Part B, 2008). The findings provide additional support for a common effect of genes coding for cell adhesion molecules (e.g., CDH13, ASTN2) and regulators of synaptic plasticity (e.g., CTNNA2, KALRN) despite the complex multifactorial etiologies of adult ADHD and addiction vulnerability.

372 citations


Authors

Showing all 23488 results

NameH-indexPapersCitations
John C. Morris1831441168413
Russel J. Reiter1691646121010
Martin J. Blaser147820104104
Christopher T. Walsh13981974314
Markus Cristinziani131114084538
James C. Paulson12644352152
Markus F. Neurath12493462376
Nicholas W. Wood12361466270
Florian Lang116142166496
Howard I. Maibach116182160765
Thomas G. Ksiazek11339846108
Frank Glorius11366349305
Eberhard Ritz111110961530
Manfred T. Reetz11095942941
Wolfgang H. Oertel11065351147
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023142
2022412
20212,103
20201,918
20191,749
20181,592