Genomes and Genes
Summary: Measurement of oscillations of any kind. In medicine it is used in studying cardiovascular and respiratory physiology. (Dorland, 28th ed)
Publications259 found, 100 shown here
- Comparison of effectiveness in ciclesonide and fluticasone propionate on small airway function in mild asthmaMakoto Hoshino
Division of Respiratory and Infectious Diseases, Department of Internal Medicine, St Marianna University School of Medicine, Kanagawa, Japan
Allergol Int 59:59-66. 2010..Ciclesonide is delivered and deposited in the peripheral region of the lung as a small particle corticosteroid. The aim of the study is to compare the effects of ciclesonide with fluticasone propionate on small airway function in asthma...
- Grouping of brain rhythms in corticothalamic systemsM Steriade
Laboratory of Neurophysiology, Laval University, Faculty of Medicine, Quebec, Canada G1K 7P4
Neuroscience 137:1087-106. 2006....
- Differential expression of the circadian clock in maternal and embryonic tissues of miceHamid Dolatshad
Department of Biology, Northeastern University, Boston, Massachusetts, United States of America
PLoS ONE 5:e9855. 2010..These cycles are active in most adult animal cells but little is known about their expression or influence during development...
- The forced oscillation technique in clinical practice: methodology, recommendations and future developmentsE Oostveen
Dept of Pulmonary Medicine, University Hospital Antwerp, Belgium
Eur Respir J 22:1026-41. 2003..Novel applications of forced oscillation technique in the clinical setting include the monitoring of respiratory mechanics during mechanical ventilation and sleep...
- Changes in respiratory mechanics with increasing degrees of airway obstruction in COPD: detection by forced oscillation techniqueAna Maria G T Di Mango
Biomedical Instrumentation Laboratory, Institute of Biology and Faculty of Engineering, Brazil
Respir Med 100:399-410. 2006....
- Comparison of inspiratory and expiratory resistance and reactance in patients with asthma and chronic obstructive pulmonary diseasePaolo Paredi
Airway Disease Section, National Heart and Lung Institute, Imperial College, Dovehouse Street, London SW3 6LY, UK
Thorax 65:263-7. 2010The usual analysis of forced oscillometry measures respiratory resistance (Rrs) and reactance (Xrs) averaged over several tidal breaths (whole-breath analysis)...
- The comparison between circadian oscillators in mouse liver and pituitary gland reveals different integration of feeding and light schedulesIsabelle M Bur
CNRS, UMR 5203, Institut de Genomique Fonctionnelle, Montpellier, France
PLoS ONE 5:e15316. 2010..Altogether our results reveal further aspects in the complexity of phase entrainment in the circadian system, and suggest that the pituitary may host oscillators able to integrate multiple time cues...
- The 2008 Pittendrigh/Aschoff lecture: peripheral phase coordination in the mammalian circadian timing systemUeli Schibler
Department of Molecular Biology, University of Geneva, Geneva, Switzerland
J Biol Rhythms 24:3-15. 2009....
- Synchronization-induced rhythmicity of circadian oscillators in the suprachiasmatic nucleusSamuel Bernard
Institute of Applied and Computational Mathematics, Foundation for Research and Technology Hellas, Heraklion, Crete, Greece
PLoS Comput Biol 3:e68. 2007..The authors conclude that to understand the orchestration of timekeeping in the SCN, intracellular circadian clocks cannot be isolated from their intercellular communication components...
- Noninvasive and invasive pulmonary function in mouse models of obstructive and restrictive respiratory diseasesJeroen A J Vanoirbeek
Lung Toxicology Research Unit, Katholieke Universiteit Leuven, Herestraat 49 bus 706, Leuven, Belgium
Am J Respir Cell Mol Biol 42:96-104. 2010..Invasive pulmonary functions allow distinction between respiratory diseases in mice by clinically relevant variables, and should become standard in the functional evaluation of pathological disease models...
- Control analysis for autonomously oscillating biochemical networksKarin A Reijenga
Department of Molecular Cell Physiology, BioCentrum Amsterdam, Faculty of Biology, Vrije Universiteit, NL-1081 HV Amsterdam, The Netherlands, EU
Biophys J 82:99-108. 2002..We show that the control of various oscillatory properties is distributed over the system enzymes in ways that differ among those properties. The models that are described in this paper can be accessed on http://jjj.biochem.sun.ac.za...
- Ontogeny of circadian organization in the ratShin Yamazaki
Department of Biology, University of Virginia, Charlottesville, VA, USA
J Biol Rhythms 24:55-63. 2009....
- New roles for the gamma rhythm: population tuning and preprocessing for the Beta rhythmMette S Olufsen
Department of Mathematics, North Carolina State University, Raleigh, NC 27659-8205, USA
J Comput Neurosci 14:33-54. 2003..We present experimental evidence showing that such a separation can occur in hippocampal slices...
- Impulse oscillometry and respiratory symptoms in World Trade Center responders, 6 years post-9/11Matthew P Mauer
Bureau of Occupational Health, Center for Environmental Health, New York State Department of Health, Flanigan Square, Troy, NY 12180, USA
Lung 188:107-13. 2010This study evaluated whether impulse oscillometry (IOS) testing revealed signs of respiratory disease in New York State (NYS) World Trade Center (WTC) responders in comparison with unexposed NYS employees...
- Numerical validation of a new method to assess aortic pulse wave velocity from a single recording of a brachial artery waveform with an occluding cuffB Trachet
bioMMeda Institute Biomedical Technology, Ghent University, and Department of Pharmacology, Ghent University Hospital, De Pintelaan 185, Block B, 9000, Ghent, Belgium
Ann Biomed Eng 38:876-88. 2010..Our data indicate that the method picks up wave reflection phenomena confined to the brachial artery, and derived values of PWV rather reflect the stiffness of the brachial arteries...
- Endogenous electric fields may guide neocortical network activityFlavio Frohlich
Department of Neurobiology, Kavli Institute of Neuroscience, Yale University School of Medicine, New Haven, CT 06510, USA
Neuron 67:129-43. 2010..This significant susceptibility of active networks to EFs that only cause small changes in membrane potential in individual neurons suggests that endogenous EFs could guide neocortical network activity...
- Within- and between-day variability of respiratory impedance, using impulse oscillometry in adolescent asthmaticsMichael D Goldman
Clinical Trials Unit, Charles R Drew University of Medicine and Science, Los Angeles, California 90034, USA
Pediatr Pulmonol 34:312-9. 2002..were to: 1) assess spirometric indices and respiratory impedance with forced oscillation (FO), using impulse oscillometry (IOS) in clinically stable asthmatic children over 3 consecutive days; 2) assess FO reactance (X), using an ..
- Detection of expiratory flow limitation in COPD using the forced oscillation techniqueR L Dellaca
TBMLab, Dipartimento di Bioingegneria, Politecnico di Milano University, Milan, Italy
Eur Respir J 23:232-40. 2004..Within-breath respiratory system reactance provides an accurate, reliable and noninvasive technique to detect expiratory flow limitation in patients with chronic obstructive pulmonary disease...
- Bioluminescence imaging of individual fibroblasts reveals persistent, independently phased circadian rhythms of clock gene expressionDavid K Welsh
Department of Cell Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
Curr Biol 14:2289-95. 2004....
- Impulse oscillometry in COPD: identification of measurements related to airway obstruction, airway conductance and lung volumesUmme Kolsum
North West Lung Research Centre, University of Manchester, South Manchester University Hospitals Trust, Southmoor Road, Wythenshawe, Manchester M23 9LT, UK
Respir Med 103:136-43. 2009Impulse oscillometry system (IOS) assesses pulmonary resistance and reactance...
- Compressive nonlinearity in the hair bundle's active response to mechanical stimulationP Martin
Howard Hughes Medical Institute and Laboratory of Sensory Neuroscience, The Rockefeller University, 1230 York Avenue, New York, NY 10021-6399, USA
Proc Natl Acad Sci U S A 98:14386-91. 2001..This scaling behavior, also found in the response of the mammalian basilar membrane to sound, signals the operation of an amplificatory process at the brink of an oscillatory instability, a Hopf bifurcation...
- A population-based study of arterial stiffness index in relation to cardiovascular risk factorsHideaki Sato
Department of General Medicine, School of Medicine, Kyorin University, Mitakashi, Tokyo, Japan
J Atheroscler Thromb 12:175-80. 2005..Furthermore, hyperlipidemic subjects with hypertension showed significantly higher values than those without hypertension. ASI could be a useful predictor of cardiovascular events in hypertensive subjects with multiple risk factors...
- Assessment of test repeatability of arterial stiffness indexGyanendra K Sharma
Department of Medicine, Medical College of Georgia, Augusta, Georgia 30912, USA
Blood Press Monit 10:271-4. 2005..The intraclass correlation coefficient, however, could be improved by eliminating the highest and lowest value from a set of measurements...
- Modeling a synthetic multicellular clock: repressilators coupled by quorum sensingJordi Garcia-Ojalvo
Center for Applied Mathematics, Cornell University, Ithaca, NY 14853, USA
Proc Natl Acad Sci U S A 101:10955-60. 2004..As such, the particular system of coupled genetic oscillators considered here might be a good candidate to provide the first quantitative example of a synchronization transition in a population of biological oscillators...
- Plethysmography and impulse oscillometry assessment of tiotropium and ipratropium bromide; a randomized, double-blind, placebo-controlled, cross-over study in healthy subjectsD Singh
Medicines Evaluation Unit, North West Lung Research Centre, Manchester, UK
Br J Clin Pharmacol 61:398-404. 2006Spirometry, plethysmography and impulse oscillometry (IOS) measure different aspects of lung function. These methods have not been compared for their ability to assess long- and short-acting anticholinergic agents...
- A new oscillometry-based method for estimating the brachial arterial compliance under loaded conditionsShing Hong Liu
Department of Computer Science and Information Engineering, Chaoyang University of Technology, Taichung, Taiwan
IEEE Trans Biomed Eng 55:2463-70. 2008We propose a new method for assessing the compliance of a compressed brachial artery using an oscillometry-based approach that is mathematically based on artery and air-cuff models...
- Impulse oscillometry versus spirometry in a long-term study of controller therapy for pediatric asthmaGary L Larsen
Department of Pediatrics, National Jewish Health, Denver, CO 80206, USA
J Allergy Clin Immunol 123:861-7.e1. 2009..Determination of the benefits and limitations of specific physiologic tests has not been well studied in long-term clinical pediatric trials...
- Forced oscillation technique in infants and young childrenUrs Frey
Paediatric Respiratory Medicine, Department of Paediatrics, University Hospital of Berne, Inselspital, 3010 Berne, Switzerland
Paediatr Respir Rev 6:246-54. 2005..It will focus particularly on the role of infant and preschool lung function as forced oscillation only requires minimal cooperation...
- Impulse oscillometry vs. body plethysmography in assessing respiratory resistance in childrenWaldemar Tomalak
Department of Physiopathology of the Respiratory System, National Research Institute for Tuberculosis and Lung Diseases, Rabka Branch, Rabka, Poland
Pediatr Pulmonol 41:50-4. 2006..we compared the results of plethysmographic measurements of airway resistance (Raw) with oscillometric (impulse oscillometry; IOS) assessment of respiratory properties of the respiratory system (resistance (R) at 5, 20, and 35 Hz)...
- Impulse oscillometry: reference values in children 100 to 150 cm in height and 3 to 10 years of ageJennifer Frei
Department of Pediatrics, Division of Respiratory Medicine, Montreal Children's Hospital, QC, Canada
Chest 128:1266-73. 2005..CONCLUSIONS: Resistance and Fres decrease by height, but also by age; and reactance increases. As opposed to our past experience with spirometry in compatible age groups, the Rfo technique was well accepted by preschool children...
- Correlation between spirometry and impulse oscillometry in children with asthmaTae Won Song
Division of Allergy and Respiratory Medicine corrected Department of Pediatrics, Ilsan Paik Hospital, Inje University College of Medicine, Goyang city corrected Korea
Acta Paediatr 97:51-4. 2008..In such cases, we could evaluate obstructive lung disease through the measurement of airway resistance instead of expiratory flow volume...
- Utility of impulse oscillometry in young children with asthmaTae Won Song
Division of Allergy and Respiratory Medicine, Department of Pediatrics, Ilsan Paik Hospital, Inje University College of Medicine, Goyang si, Korea
Pediatr Allergy Immunol 19:763-8. 2008Impulse Oscillometry (IOS) was developed as a tool to measure lung function, and as it only requires passive cooperation, it has been successfully used in younger children...
- The use of plethysmography and oscillometry to compare long-acting bronchodilators in patients with COPDZoe L Borrill
Medicines Evaluation Unit, North West Lung Centre, University of Manchester, South Manchester University Hospitals NHS Trust, Manchester, UK
Br J Clin Pharmacol 65:244-52. 2008..Having previously shown that specific airway conductance (sGaw) measured using body plethysmography and impulse oscillometry (IOS) are more sensitive than FEV(1) for assessing short-acting bronchodilator effects in patients with COPD, ..
- Impulse oscillometry: a measure for airway obstructionGeraldine R Vink
Department of Paediatric Pulmonology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
Pediatr Pulmonol 35:214-9. 2003The impulse oscillometry system (IOS) was introduced as a new technique to assess airflow obstruction in patients who are not able to perform forced breathing maneuvers, e.g...
- Use of the impulse oscillometry system for testing pulmonary function during methacholine bronchoprovocation in horsesEmmanuelle van Erck
Laboratory for Functional Investigation, Department of Physiology, Faculty of Veterinary Medicine, , Bat B42, Sart Tilman, , Belgium
Am J Vet Res 64:1414-20. 2003OBJECTIVE: To compare sensitivity of the impulse oscillometry system (IOS) with that of the conventional reference technique (CRT; ie, esophageal balloon method) for pulmonary function testing in horses...
- Reference values for respiratory system impedance by using impulse oscillometry in children aged 2-11 yearsM Dencker
Department of Clinical Sciences, Malmo, Lund University, Sweden
Clin Physiol Funct Imaging 26:247-50. 2006..The method is therefore especially useful in children. Impulse oscillometry (IOS) is a commercially available version of this technique...
- Lung function measurement in the assessment of childhood asthma: recent important developmentsStanley P Galant
Children s Hospital of Orange County CHOC, California, USA
Curr Opin Allergy Clin Immunol 10:149-54. 2010..To present three clinically important developments related to the utilization of pulmonary function to objectively assess the asthmatic child...
- Synchronization and rhythmic processes in physiologyL Glass
Department of Physiology, Centre for Nonlinear Dynamics in Physiology and Medicine, McGill University, Montreal, Quebec, Canada
Nature 410:277-84. 2001....
- The effects of inhaled albuterol and salmeterol in 2- to 5-year-old asthmatic children as measured by impulse oscillometryGabriel Ortiz
Allergy and Asthma Research Center of El Paso, Texas, USA
J Asthma 39:531-6. 2002..In this stud we used the Jaeger MasterScreen Impulse Oscillometry System to assess the response of 2 to 5 year-old asthmatic children to an inhaled long-acting bronchodilator, ..
- Useful parameters of bronchial hyperresponsiveness measured with an impulse oscillation technique in preschool childrenHye Mi Jee
Department of Pediatrics, CHA University School of Medicine, Seongnam, Korea
J Asthma 47:227-32. 2010..There are few studies focused on bronchial challenge testing using the oscillation technique, and results from the test in preschool children have been inconsistent...
- Free intracellular amino acid pools during autonomous oscillations in Saccharomyces cerevisiaeMichael A Hans
Biochemical Engineering, Saarland University, POB 151150, 66123 Saarbruecken, Germany
Biotechnol Bioeng 82:143-51. 2003..The fact that there is a close relationship between doubling time and period of oscillation underlines that the described autonomous oscillations are cell-cycle-associated...
- Motivation, emotion, and their inhibitory control mirrored in brain oscillationsGennady G Knyazev
State Research Institute of Physiology, Siberian Branch of the Russian Academy of Medical Sciences, Timakova str, 4, Novosibirsk, 630117, Russia
Neurosci Biobehav Rev 31:377-95. 2007..This reciprocal relationship may reflect an inhibitory control over motivational and emotional drives which is implemented by the prefrontal cortex...
- Multiple oscillators regulate circadian gene expression in NeurosporaAlejandro Correa
Center for Biological Clocks Research, Department of Biology, Texas A and M University, College Station, TX 77843, USA
Proc Natl Acad Sci U S A 100:13597-602. 2003..These ccgs accumulate mRNA rhythmically with a circadian period in a frq-null strain, confirming the existence of a second oscillator in N. crassa...
- The number of catalytic elements is crucial for the emergence of metabolic coresIldefonso M De La Fuente
Department of Mathematics, Faculty of Science and Technology, University of the Basque Country, Vizcaya, Spain
PLoS ONE 4:e7510. 2009....
- Cortical calcium waves in resting newborn miceHelmuth Adelsberger
Physiologisches Institut, , Pettenkoferstr. 12, , Germany
Nat Neurosci 8:988-90. 2005..Our results suggest that Ca(2+)-dependent cortical maturation occurs predominantly during the intermittent sleep-like resting periods that are characteristic for the first days of postnatal life...
- Validation of the Oscar 2 oscillometric 24-h ambulatory blood pressure monitor according to the British Hypertension Society protocolJames Goodwin
James Cook University Hospital, Teesside University, Middlesbrough, UK
Blood Press Monit 12:113-7. 2007..We carried out an independent evaluation of the Oscar 2 oscillometric ambulatory blood pressure monitor (SunTech Medical, Model 222) according to the British Hypertension Society (BHS) Protocol...
- A model for circadian oscillations in the Drosophila period protein (PER)A Goldbeter
Faculte des Sciences, Universite Libre de Bruxelles, Brussels, Belgium
Proc Biol Sci 261:319-24. 1995..A similar result is obtained with respect to the rate of PER transport into the nucleus. The results suggest a tentative explanation for the altered period of per mutants, in terms of variations in the rate of PER degradation...
- Model of transient oscillatory synchronization in the locust antennal lobeM Bazhenov
Howard Hughes Medical Institute, The Salk Institute, Computational Neurobiology Laboratory, La Jolla, CA 92037, USA
Neuron 30:553-67. 2001..The model shows how alternations of the inhibitory drive can temporally encode sensory information in networks of neurons without precisely tuned intrinsic oscillatory properties...
- The Arabidopsis thaliana clockPatrice A Salome
Department of Biological Sciences, 6044 Gilman Laboratories, Dartmouth College, Hanover, NH 03755 3576, USA
J Biol Rhythms 19:425-35. 2004..In contrast, the mechanism of photoperiodic induction of flowering is known in considerable detail and is consistent with the external coincidence model...
- The hippocamposeptal pathway generates rhythmic firing of GABAergic neurons in the medial septum and diagonal bands: an investigation using a complete septohippocampal preparation in vitroFrédéric Manseau
Douglas Hospital Research Center, Department of Psychiatry, McGill University, Montreal, Quebec, Canada H4H 1R3
J Neurosci 28:4096-107. 2008..Our data demonstrate that hippocamposeptal inhibition facilitates theta rhythmic discharges in MS/DB GABAergic neurons while favoring the inhibition of most ACh and glutamate neurons...
- Homologous and heterologous asynchronicity between identified alpha-, beta- and delta-cells within intact islets of Langerhans in the mouseA Nadal
Institute of Bioengineering and Department of Physiology, Miguel Hernandez University, Campus of San Juan, Alicante 03550, Spain
J Physiol 517:85-93. 1999....
- Background gamma rhythmicity and attention in cortical local circuits: a computational studyChristoph Börgers
Department of Mathematics, Tufts University, Medford, MA 02155, USA
Proc Natl Acad Sci U S A 102:7002-7. 2005..We suggest that such rhythms accompany states of preparatory attention or vigilance and report simulations demonstrating that their presence can amplify stimulus-specific responses and enhance stimulus competition within a local circuit...
- Posttranscriptional and posttranslational regulation of clock genesEmily Harms
Laboratory of Genetics, Rockefeller University, New York, NY 10021, USA
J Biol Rhythms 19:361-73. 2004..The combined outcome of these modifications is to adjust the timing of the clock to produce a circadian oscillator that takes approximately 24 h...
- The neurospora circadian systemJay C Dunlap
Department of Genetics, Dartmouth Medical School, Hannover, NH 03755 3844, USA
J Biol Rhythms 19:414-24. 2004..Overall, the FRQ/white collar complex feedback loop appears to coordinate the circadian system through its activity to regulate downstream-target clock-controlled genes, either directly or via regulation of driven FLOs...
- Circadian timing mechanism in the prokaryotic clock system of cyanobacteriaHideo Iwasaki
Division of Biological Science, Graduate School of Science, Nagoya University, Japan
J Biol Rhythms 19:436-44. 2004..Here, the authors summarize current understanding of, and open questions about, the cyanobacterial oscillator...
- Autonomous oscillations in Saccharomyces cerevisiae during batch cultures on trehaloseMatthieu Jules
Centre de Bioingenierie Gilbert Durand, UMR-CNRS 5504, UMR-INRA 792, , Toulouse, France
FEBS J 272:1490-500. 2005..We propose that batch culture on trehalose may be an excellent device for further investigation of the molecular mechanisms that underlie autonomous oscillations in yeast...
- A modeling comparison of projection neuron- and neuromodulator-elicited oscillations in a central pattern generating networkNickolas Kintos
Department of Mathematical Sciences, New Jersey Institute of Technology, 323 Martin Luther King Blvd, Cullimore Hall Room 606, Newark, NJ 07102, USA
J Comput Neurosci 24:374-97. 2008..Our results illustrate how the actions of bath-applied neuromodulators can mimic those of descending projection neurons through mathematically similar but physiologically distinct mechanisms...
- Methacholine-induced asthma symptoms correlate with impulse oscillometry but not spirometryAdel H Mansur
Respiratory Medicine, Birmingham Heartlands Hospital NHS Trust, Birmingham, West Midlands, UK
Respir Med 102:42-9. 2008..Use of impulse oscillometry (IOS) in airways resistance measurement may be more sensitive...
- Qualitative and quantitative evaluation of equine respiratory mechanics by impulse oscillometryE Van Erck
Laboratory for Functional Investigation, Department of Physiology, Faculty of Veterinary Medicine, , , Belgium
Equine Vet J 38:52-8. 2006..in horses lacks sensitivity and there is a need for further refinement in new technology, such as the impulse oscillometry system (IOS)...
- Montelukast improves pulmonary function measured by impulse oscillometry in children with asthma (Mio study)Antonio Nieto
Pediatric Allergy Unit, Children s Hospital, Av Campanar 21, Valencia 46009, Spain
Respir Med 100:1180-5. 2006..The impulse oscillometry (IOS) technique is useful to evaluate both central and peripheral airways function.
- Circadian clocks are resounding in peripheral tissuesAndrey A Ptitsyn
Experimental Obesity Laboratory, Louisiana State University Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA
PLoS Comput Biol 2:e16. 2006..We conclude that greater attention should be given to the potential influence of circadian mechanisms on any biological pathway related to metabolism and obesity...
- Plant circadian rhythmsC Robertson McClung
Department of Biological Sciences, Dartmouth College Hanover, NH 03755-3576, USA
Plant Cell 18:792-803. 2006
- Expression of clock and clock-driven genes in the rat suprachiasmatic nucleus during late fetal and early postnatal developmentZuzana Kovacikova
Institute of Physiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
J Biol Rhythms 21:140-8. 2006....
- Impulse oscillometry for estimation of airway obstruction and bronchodilation in adults with mild obstructive asthmaJung Won Park
Department of Internal Medicine, Institute of Allergy, Brain Korea 21
Ann Allergy Asthma Immunol 98:546-52. 2007Clinical validity of impulse oscillometry (IOS) for the evaluation of airway obstruction and bronchodilation is a controversial issue in adults with asthma.
- A KaiC-associating SasA-RpaA two-component regulatory system as a major circadian timing mediator in cyanobacteriaNaoki Takai
Division of Biological Science, Graduate School of Science, Nagoya University, Furocho, Nagoya 464-8602, Japan
Proc Natl Acad Sci U S A 103:12109-14. 2006..Moreover, our results indicate the presence of secondary output pathways from the clock to transcription control, suggesting that multiple pathways ensure a genome-wide circadian system...
- Detecting causality between different frequenciesJianhua Wu
Department of Computer Science and Mathematics, University of Warwick, Coventry CV4 7AL, UK
J Neurosci Methods 167:367-75. 2008..The method is successfully tested on data generated from a toy model, the van der Pol oscillator and then employed to analyze data recorded from Parkinson's disease (PD) patients...
- The enigma of Mayer waves: Facts and modelsClaude Julien
Laboratoire de Physiologie, Faculte de Pharmacie, 8, avenue Rockefeller, Universite Claude Bernard Lyon 1, Lyon 69373 Cedex 08, France
Cardiovasc Res 70:12-21. 2006..Within this frame, the amplitude of Mayer waves would be determined both by the strength of the triggering perturbations and the sensitivity of the sympathetic component of the baroreceptor reflex...
- Oscillatory lunatic fringe activity is crucial for segmentation of the anterior but not posterior skeletonEmily T Shifley
Department of Molecular Genetics, The Ohio State University, 484 West 12th Avenue, Columbus, OH 43210 1292, USA
Development 135:899-908. 2008....
- Simulation of Drosophila circadian oscillations, mutations, and light responses by a model with VRI, PDP-1, and CLKPaul Smolen
Department of Neurobiology and Anatomy, W M Keck Center for the Neurobiology of Learning and Memory, The University of Texas Houston Medical School, Houston, Texas 77225, USA
Biophys J 86:2786-802. 2004..Temperature compensation of oscillation period could be simulated if temperature elevation slowed PER nuclear entry or PER phosphorylation. The model makes experimental predictions, some of which could be tested in transgenic Drosophila...
- Two distinct oscillatory states determined by the NMDA receptor in rat inferior oliveD Placantonakis
Neurological Sciences Institute, Oregon Health Sciences University, 505 NW 185th Avenue, Beaverton, OR 97006 USA
J Physiol 534:123-40. 2001..Moreover, the data demonstrate that NMDA receptor currents are necessary for generation of spontaneous subthreshold oscillations in the inferior olive...
- Beat-to-beat oscillations of mitochondrial [Ca2+] in cardiac cellsV Robert
Department of Biomedical Sciences, CNR Center of Biomembranes, University of Padua, Via Colombo 3, 35121 Padua, Italy
EMBO J 20:4998-5007. 2001..The present data unequivocally demonstrate that in cardiac cells mitochondrial [Ca2+] oscillates synchronously with cytosolic [Ca2+] and that mitochondrial Ca2+ handling rapidly adapts to inotropic or chronotropic inputs...
- Autonomous onset of the circadian clock in the zebrafish embryoMarcus P S Dekens
Department of Cell and Developmental Biology, University College London, London, UK
EMBO J 27:2757-65. 2008..This embryonic clock is differentially regulated from that in the adult, the transition coinciding with the appearance of several clock output processes...
- Mathematical identification of critical reactions in the interlocked feedback modelHiroyuki Kurata
Department of Bioscience and Bioinformatics, Kyushu Institute of Technology, Fukuoka, Japan
PLoS ONE 2:e1103. 2007....
- A multivariate, spatiotemporal analysis of electromagnetic time-frequency data of recognition memoryE Duzel
Department of Neurology II, Otto von Guericke University, Leipziger Strasse 44, 39120 Magdeburg, Germany
Neuroimage 18:185-97. 2003....
- Transcriptional oscillation of lunatic fringe is essential for somitogenesisKatrin Serth
Institut fur Molekularbiologie, Medizinische Hochschule Hannover, D 30625 Hannover, Germany
Genes Dev 17:912-25. 2003....
- The transcriptional repressor STRA13 regulates a subset of peripheral circadian outputsAline Grechez-Cassiau
Universite de Nice Sophia Antipolis, CNRS UMR 6078, La Darse, 06230 Villefranche Mer, France
J Biol Chem 279:1141-50. 2004..These biochemical and genetic data establish a role for the basic helix-loop-helix repressor STRA13 as a circadian output regulator in the periphery...
- Regulation of human cutaneous circulation evaluated by laser Doppler flowmetry, iontophoresis, and spectral analysis: importance of nitric oxide and prostaglandinesPer Kvandal
Department of Anesthesiology, Ulleval University Hospital, 0407 Oslo, Norway
Microvasc Res 65:160-71. 2003..01 Hz are partly mediated by NO, but not by endogenous PGs. Other aspects of human cutaneous circulation studied are not regulated by NO or PGs...
- Fluid pressure gradients, arising from oscillations in intramedullary pressure, is correlated with the formation of bone and inhibition of intracortical porosityYi Xian Qin
Department of Biomedical Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794 2580, USA
J Biomech 36:1427-37. 2003..While ImP increases uniformly in the marrow cavity, the distinct parameters of fluid flow vary substantially due to the geometry and ultrastructure of bone, which ultimately defines the spatial non-uniformity of the adaptive process...
- Effect of inhaled corticosteroids on small airways in asthma: investigation using impulse oscillometryMasafumi Yamaguchi
Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, 54 Kawahara cho, Shogoin, Sakyo ku, Kyoto, Japan
Pulm Pharmacol Ther 22:326-32. 2009..Impulse oscillometry systems (IOS), a new and non-invasive measure of pulmonary function, can examine the resistance of total (R5), ..
- Measuring phase synchronization of superimposed signalsFrank C Meinecke
Fraunhofer FIRST IDA, Kekulestrasse 7, D 12489 Berlin, Germany
Phys Rev Lett 94:084102. 2005..We show how techniques from blind source separation can help to nevertheless measure the true synchronization and avoid such pitfalls...
- Wavelet analysis of blood flow dynamics: effect on the individual oscillatory components of iontophoresis with pharmacologically neutral electrolytesMitja Veber
Group of Nonlinear Dynamics and Synergetics, Faculty of Electrical Engineering, University of Ljubljana, Trzaska 25, 1000 Ljubljana, Slovenia
Phys Med Biol 49:N111-7. 2004..It did so at all frequencies, but none of the sub-intervals associated with vasodilation (0.0095-0.145 Hz) was selectively affected compared to the others...
- Switching from simple to complex oscillations in calcium signalingU Kummer
European Media Laboratory, 69118 Heidelberg, Germany
Biophys J 79:1188-95. 2000..Moreover, our model offers a possible explanation for the differences in dynamic behavior observed in response to different agonists in hepatocytes...
- Sustained oscillations in living cellsS Danø
Department of Chemistry and CATS, H C Orsted Institute, University of Copenhagen, Denmark
Nature 402:320-2. 1999..Acetaldehyde is known to synchronize the oscillations. Our results show that glucose is another messenger substance, as long as the glucose transporter is not saturated...
- Effect of common noise on phase synchronization in coupled chaotic oscillatorsKwangho Park
Department of Electrical Engineering, Arizona State University, Tempe, Arizona 85287, USA
Chaos 17:013105. 2007..We provide numerical results, experimental evidence from coupled chaotic circuits, and a heuristic argument to establish the generality of this phenomenon...
- From baseline to epileptiform activity: a path to synchronized rhythmicity in large-scale neural networksVladimir Shusterman
Cardiovascular Institute and Department of Mathematics, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
Phys Rev E Stat Nonlin Soft Matter Phys 77:061911. 2008..These findings advance the understanding of functional behavior of interconnected populations and might have implications for the analysis of diverse classes of networks...
- Simulations of intracellular calcium release dynamics in response to a high-intensity, ultrashort electric pulseR P Joshi
Department of Electrical and Computer Engineering, Old Dominion University, Norfolk, VA 23529 0246, USA
Phys Rev E Stat Nonlin Soft Matter Phys 75:041920. 2007..A quantitative explanation for the lack of such oscillatory behavior, based on the density dependent calcium fluxes, is also provided...
- Multiplicative-noise-induced coherence resonance via two different mechanisms in bistable neural modelsJun Tang
Department of Physics and Institute of Biophysics, Huazhong Normal University, Wuhan 430079, China
Phys Rev E Stat Nonlin Soft Matter Phys 77:061905. 2008..0001 can a maximal coherence be obtained at some intermediate noise intensity of the second multiplicative noise. These coherence resonance phenomena have been understood in terms of the presented mechanisms...
- Tremor entrainment by patterned low-frequency stimulationUtako B Barnikol
Institute of Neurosciences and Biophysics 3 Medicine, Research Center Julich, Leo Brand Street, 52425 Julich, Germany
Philos Transact A Math Phys Eng Sci 366:3545-73. 2008..PLFS test stimulations provided the only functional information about target localization. Optimal target point selection was confirmed by excellent post-operative tremor suppression...
- Autocorrelation functions of a fluid of molecules interacting through steeply repulsive and attractive forcesG Rickayzen
Division of Chemistry, School of Biomedical and Molecular Sciences, University of Surrey, Guildford GU2 7XH, United Kingdom
J Chem Phys 126:234503. 2007..The two approaches agree very well for a range of state points, especially at short times. At later times the theory predicts a more oscillatory behavior than the simulation especially at very low reduced temperatures...
- Predicting regulation of the phosphorylation cycle of KaiC clock protein using mathematical analysisHisako Takigawa-Imamura
Division of Theoretical Biology, National Institute for Basic Biology, Okazaki, Aichi, Japan
J Biol Rhythms 21:405-16. 2006..This result implies that the KaiC-KaiA complex formation requires more than 1 step of posttranslational modification, including phosphorylation or conformational change of KaiC...
- Twisted vortex filaments in the three-dimensional complex Ginzburg-Landau equationGuillaume Rousseau
INRIA Paris Rocquencourt, Universite Paris 7 Denis Diderot, Domaine de Voluceau, Rocquencourt B P 105, 78153 Le Chesnay Cedex, France
Chaos 18:026103. 2008....
- Kinematic description of wave propagation through a chemical diodeI Sendiña-Nadal
Universidad Rey Juan Carlos, Tulipán, s n 28933 Móstoles, Spain
Chaos 16:033110. 2006..In the present paper, as an extension of that study, the main factors that influence this phenomenon are interpreted in terms of a kinematic model...
- Controlling the onset of Hopf bifurcation in the Hodgkin-Huxley modelYong Xie
MOE Key Laboratory for Strength and Vibration, School of Aerospace, Xi an Jiaotong University, Xi an 710049, People s Republic of China
Phys Rev E Stat Nonlin Soft Matter Phys 77:061921. 2008....
- Periodic solution and chaotic strange attractor for shunting inhibitory cellular neural networks with impulsesZhanji Gui
Department of Computer Science, Hainan Normal University, Haikou, HaiNan 571158, People s Republic of China
Chaos 16:033116. 2006..To the best of our knowledge, these results have been obtained for the first time. Some researchers have introduced impulses into their models, but analogous results have never been found...
- Generalized projective synchronization of chaotic systems with unknown dead-zone input: observer-based approachYung-Ching Hung
Department of Engineering Science, National Cheng Kung University, Tainan, 701 Taiwan
Chaos 16:033125. 2006..Two illustrative examples are given to demonstrate the effectiveness of the proposed synchronization scheme...
- Long-range interaction effects on calcium-wave propagationW D Kepseu
Laboratory of Modeling and Simulation in Engineering and Biological Physics, Faculty of Science, University of Yaounde I, PO Box 812, Yaounde, Cameroon
Phys Rev E Stat Nonlin Soft Matter Phys 78:011922. 2008..We also investigate the long-range effects on the colonization of a given niche by a pathogenic microorganism signal on calcium wave propagation in the network...
- Chaotic itinerancy in the oscillator neural network without Lyapunov functionsSatoki Uchiyama
Department of Artificial Complex Systems Engineering, Hiroshima University, Higashi Hiroshima 739 8527, Japan
Chaos 14:699-706. 2004..Rev. E 65, 061912 (2002)] that was studied theoretically with the aid of statistical neurodynamics. It is found that CI in neural nets can be understood as the intermittent dynamics of weakly destabilized chaotic retrieval solutions...
- Resonant and nonresonant patterns in forced oscillatorsBradley Marts
Department of Physics, Duke University, Durham, North Carolina 27708, USA
Chaos 16:037113. 2006....
- An observer for a nonlinear age-structured model of a harvested fish populationDiène Ngom
Laboratoire d Analyse Numérique et d Informatique LANI, UFR de Sciences Appliquées et de Technologie, Université Gaston Berger B P 234 Saint Louis, Senegal
Math Biosci Eng 5:337-54. 2008..This study shows how some tools from nonlinear control theory can help to deal with the state estimation problem in the field of renewable resource management...
- Analysis of structures causing instabilitiesThomas Wilhelm
Theoretical Systems Biology, Institute of Food Research, Norwich Research Park, Colney, Norwich NR4 7UA, United Kingdom
Phys Rev E Stat Nonlin Soft Matter Phys 76:011911. 2007..The ICSA leads to new insights into the topological organization of chemical and biochemical systems, such as metabolic, gene regulatory, and signal transduction networks...
- Quantization of a free particle interacting linearly with a harmonic oscillatorThomas Mainiero
Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
Chaos 17:043130. 2007..We show, in particular, that the Husimi structure becomes mixed and delocalized as the classical dynamics becomes more chaotic...
Research Grants129 found, 100 shown here
- UTEP-UNM HSC ARCH PROGRAM ON BORDER ASTHMANICHOLAS PINGITORE; Fiscal Year: 2007..In revised Project 1, lung function in children measured by Impulse Oscillometry (IOS) methods in a clinical setting will be compared to lung function measured with spirometry methods ..
- RISK FACTORS IN BRONCHOPULMONARY DYSPLASIAMari Palta; Fiscal Year: 2006..Comprehensive follow-up of all children to age 2, and those born in 2003 to impulse oscillometry (lOS) testing at age 4 years, will generate regional data on NICU outcomes in an era when extremely small ..
- Improved Non-Invasive Blood Pressure Monitor AlgorithmsBo Chen; Fiscal Year: 2004..With the increase of an aging population leading to increased applications of oscillometry based NIBP monitors, there is an urgent need to develop better algorithms that improve the accuracy of ..
- RETROHIPPOCAMPAL CIRCUITS MEDIATED EPILEPTIFORM ACTIVITYMark Stewart; Fiscal Year: 2003..An understanding of such circuits may lead to practical strategies for limiting seizure generation and spread by targeted disconnection procedures. ..
- Autonomic consequences of brief seizuresMark Stewart; Fiscal Year: 2004..abstract_text> ..
- Biomechanical Characterization of Vocal Fold TissuesRoger W Chan; Fiscal Year: 2010....
- Biomechanical Characterization of Vocal Fold TissuesRoger Chan; Fiscal Year: 2009....
- Biomechanical Characterization of Vocal Fold TissuesRoger Chan; Fiscal Year: 2009....
- Biomechanical Characterization of Vocal Fold TissuesRoger Chan; Fiscal Year: 2007....
- CRCNS-Multiple olfactory gamma oscillations: roles in sensation and attentionLeslie Kay; Fiscal Year: 2007..We anticipate that understanding how olfactory deficits arise from changes in the limbic system associated with many of these disorders, will help us to understand the mechanisms that produce cognitive malfunctioning. ..
- Noninvasive Sensors of Metabolic ActivityJohn Miller; Fiscal Year: 2007..This approach will enable eventual development of clinical devices that can detect metabolic syndrome early or monitor resting and active metabolism. ..
- Multisensory integration of faces and voices in the primate temporal lobeASIF GHAZANFAR; Fiscal Year: 2009..In part at least, this deficit is likely due to the autistics' specific impairment in face and voice processing, but not in other domains of visual and auditory function. ..
- Longtitudinal Studies of HIV-Associated Bacterial PneumoniaWilliam Rom; Fiscal Year: 2007..We will freeze and store at -70 degrees plasma, serum, PBMC (RNA, DNA, protein), BAL, from involved/uninvolved lung segments, and sputum for collaborative studies with other NHLBI grantees. ..
- CRCNS: Integrated Empirical and Multiscale Modeling of Human Sleep SpindlesTerrence Sejnowski; Fiscal Year: 2009..These 3 teams of PIs, students and postdoctoral fellows will interact on a daily basis during the research and will meet formally at least once a year to assess progress and plan new experiments. ..
- CRCNS:Comput./Exp.Study:Hypothal.-Pituitary InteractionRichard Bertram; Fiscal Year: 2007..It will then lead to studies of effects of drugs of abuse on brain-pituitary function. ..
- Multisensory integration of faces and voices in the primate temporal lobeASIF GHAZANFAR; Fiscal Year: 2010..In part at least, this deficit is likely due to the autistics'specific impairment in face and voice processing, but not in other domains of visual and auditory function. ..
- Electrophysiology of Human Spatial CognitionMichael Kahana; Fiscal Year: 2009..The proposed studies are of direct relevance to the treatment of epilepsy, in which mapping of cognitive functions to brain regions during surgical procedures is crucial for ensuring good postsurgical outcome. ..
- Myosin structural and kinetic mechanisms that differentiate fast and slow muscle DOUGLAS SWANK; Fiscal Year: 2009..FHC is an inherited genetic disease that is a major cause of sudden death among young adults. ..
- TEMPORAL INTEGRATION OF PHOTOPERIODIC SIGNALS IN MAMMALSMichael R Gorman; Fiscal Year: 2010..Finally, these studies form a necessary information base to evaluate the potential physiological costs and benefits of artificial lighting regimes experienced by humans in modern society. ..
- Time and the forebrain coding of taste learningDonald Katz; Fiscal Year: 2009..Overall, this project will shed light on the neural mechanisms underlying an experiential phenomenon that affects (sometimes adversely) the lives of all mammals, including humans. ..
- Effects of Mental Training on Voluntary Muscle Strength in AgingGuang Yue; Fiscal Year: 2009....
- NONLINEAR DYNAMICS OF NEURONAL ENSEMBLESSteven Schiff; Fiscal Year: 2002....
- Identification of Spike Patterns in Cortical NetworksTerrence Sejnowski; Fiscal Year: 2006....
- Vasopressin for blood pressure support during dialysisAliza Thompson; Fiscal Year: 2005..abstract_text> ..
- NORMAL AND ABNORMAL IN VIVO CARPAL BONE MOTIONJoseph Crisco; Fiscal Year: 2005..Our goal is to generate information that will improve the evaluation, diagnosis and treatment of wrist injury. ..
- The Pathophysiology of T-wave AlternansSanjiv Narayan; Fiscal Year: 2005..This structured approach will ensure the successful completion of this project and, in this way, the development of the applicant into an independent clinician-investigator. ..
- Effects of Biological Noise Sources on Neuronal DynamicsJohn White; Fiscal Year: 2005....
- Recurrent Neual Circuit Basis of Time Integration and Decision MakingXiao Jing Wang; Fiscal Year: 2010..Taken together, the proposed research will advance, for the first time, a detailed circuit model of sensory-motor decisions in the parieto-fronto-basal ganglia network. ..
- Synchronous Activity in Hybrid Neuronal MicrocircuitsJohn A White; Fiscal Year: 2010..Second, electronic technology being developed and used for this project will be valuable for feedback-based electrical stimulation of brain structures in neurological patients. ..
- Neuromodulation and Neuronal DynamicsJohn White; Fiscal Year: 2004..B) Neuromodulators can change the functional architecture of the hippocampal formation by altering cellular properties that determine synchronization behavior. ..
- CRCNS: Uncovering neurla circuit mechanisms of category computation and learningXIAO JING contact WANG; Fiscal Year: 2010..These demonstrations will be used in K-12 classroom presentations and also available online. ..
- Recurrent Neual Circuit Basis of Time Integration and Decision MakingXiao Jing Wang; Fiscal Year: 2009..Taken together, the proposed research will advance, for the first time, a detailed circuit model of sensory-motor decisions in the parieto-fronto-basal ganglia network. ..