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Becher Tobias H - - 2014
IntroductionAssessment of respiratory system compliance (Crs) can be used for individual optimization of positive end-expiratory pressure (PEEP). However, in patients with spontaneous breathing activity, the conventional methods for Crs measurement are inaccurate due to the variable muscular pressure of the patient. We hypothesized that a PEEP wave maneuver, analyzed with ...
Weichenthal Scott - - 2014
BackgroundTraffic-related air pollution may contribute to cardiovascular morbidity. In urban areas, exposures during physical activity are of interest owing to increased breathing rates and close proximity to vehicle emissions.MethodsWe conducted a cross-over study among 53 healthy non-smoking women in Montreal, Canada during the summer of 2013. Women were exposed to ...
Aklog Yihun Fantahun YF Department of Chemistry and Biotechnology, Tottori University, Tottori 680-8552, - - 2014
Chitosan nanofibers were easily prepared from fully deacetylated chitosan dry powder using a high-pressure waterjet system. From SEM observation, after 10 cycles of treatment, most of the chitosan had been reduced to homogeneous nanofibers measuring tens of nanometers. On the other hand, further mechanical treatment did not show a significant ...
Gay Charles W CW Rehabilitation Science Program, University of Florida, Gainesville, FL, USA. Electronic address: - - 2014
The blocked stimulus presentation strategy, in fMRI study designs, is an important means to study brain function related to a particular stimulus. Specifically, applying pressure stimuli perceived as painful to different anatomical regions has been used to improve our understanding of central sensitization, which is an important clinical phenomenon in ...
Borges João Batista JB Hedenstierna Laboratory, Department of Surgical Sciences, Section of Anaesthesiology & Critical Care, Uppsala University, Uppsala, Sweden, - - 2014
Aeroatelectasis can develop in aircrew flying the latest generation high-performance aircraft. Causes alleged are relative hyperoxia, increased gravity in the head-to-foot direction (+Gz), and compression of legs and stomach by anti-G trousers (AGT). We aimed to assess, in real time, the effects of hyperoxia, +Gz accelerations and AGT inflation on ...
Kang Donghyuk D Assistant Professor Mechanical Engineering, Aoyama Gakuin University , 5-10-1 Fuchinobe, Chuo-ku , Sagamihara 252-5258 , Japan e-mail:  - - 2014
In order to clarify effects of an accumulator, pipe lengths and gradients of pressure and suction performances on cavitation surge, one-dimensional stability analyses of cavitation surge were performed in hydraulic systems consisting of an upstream tank, an inlet pipe, a cavitating pump, a downstream pipe, and a downstream tank. An ...
Young Roger C RC Department of Obstetrics and Gynecology, University of Tennessee Health Science Center, Memphis, Tennessee, United States of - - 2014
The mechanisms used to coordinate uterine contractions are not known. We develop a new model based on the proposal that there is a maximum distance to which action potentials can propagate in the uterine wall. This establishes "regions", where one action potential burst can rapidly recruit all the tissue. Regions ...
Jankowitz Brian T BT Department of Neurological Surgery - - 2014
Abstract The advent of new flexible intermediate catheters facilitated manual aspiration thrombectomy (MAT) for treating neurovascular ischaemic diseases. While these catheters are somewhat flexible, most catheters were not designed specifically for aspiration. Trackability is an important property of catheters facilitating catheter advancement in highly tortuous cerebrovasculature. In this study, a ...
Mieszkowska N N Marine Biological Association of the UK, Citadel Hill, Plymouth PL1 2PB, UK - - 2014
Marine biodiversity currently faces unprecedented threats from multiple pressures arising from human activities. Global drivers such as climate change and ocean acidification interact with regional eutrophication, exploitation of commercial fish stocks and localized pressures including pollution, coastal development and the extraction of aggregates and fuel, causing alteration and degradation of ...
Zhu Qiaoqiao Q Tissue Biomechanics Lab, Department of Biomedical Engineering, University of Miami, Coral Gables, FL, - - 2014
In this study, a three-dimensional finite element model was used to investigate the changes in tissue composition and mechanical signals within human lumbar intervertebral disc during the degenerative progression. This model was developed based on the cell-activity coupled mechano-electrochemical mixture theory. The disc degeneration was simulated by lowering nutrition levels ...
Kim Daniel S - - 2014
BackgroundSingle nucleotide polymorphisms (SNPs) within the 9p21.3 genomic region have been consistently associated with coronary heart disease (CHD), myocardial infarction, and quantity of coronary artery calcification (CAC), a marker of subclinical atherosclerosis. Prior studies have established an association between blood pressure measures and CAC. To examine mechanisms by which the ...
Fulcher Lewis P LP Department of Physics and Astronomy, Bowling Green State University, Bowling Green, Ohio - - 2014
Pressure distributions were obtained for 5°, 10°, and 20° convergent angles with a static physical model (M5) of the glottis. Measurements were made for minimal glottal diameters from d = 0.005-0.32 cm with a range of transglottal pressures of interest for phonation. Entrance loss coefficients were calculated at the glottal entrance for each ...
Kan Hirohito H Department of Radiology, Nagoya City University Hospital, 1-Kawasumi, Mizuho-cho Mizuho-ku, Nagoya City, Aichi, 4678602, Japan; Division of Health Sciences, Graduate School of Medical Science, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Ishikawa, 9200942, Japan. Electronic address: - - 2014
To clarify the mechanism underlying apparent diffusion coefficient (ADC) changes in regional intracranial tissue during the cardiac cycle, we investigated relationships among ADC changes, volume loading, and intracranial pressure using a hemodialyzer phantom and magnetic resonance imaging (MRI). The hemodialyzer phantom consisted of hollow fibers (HF), the external space of ...
Cherbuin Nicolas N Centre for Research on Ageing, Health and Wellbeing, Australian National University, Canberra, Australia; Dementia Collaborative Research Centre-Early Diagnosis and Prevention, Australian National University, Canberra, Australia; - - 2014
Research on associations between blood pressure, brain structure, and cognitive function has produced somewhat inconsistent results. In part, this may be due to differences in age ranges studied and because of sex differences in physiology and/or exposure to risk factors, which may lead to different time course or patterns in ...
Chiramel George Koshy GK Department of Radiology, Christian Medical College, Vellore, 632004, Tamil Nadu, India, - - 2014
This manuscript describes the clinical features, imaging findings, treatment details, and short-term outcomes of a series of congenital slow-flow vascular malformations. This was a prospective study of congenital slow-flow vascular malformations involving the orbital region treated at a single institution with percutaneous sclerotherapy. Ten patients presented during the study period, comprising ...
Meijer Ellen - - 2014
BackgroundLameness is a common problem in modern swine husbandry. It causes welfare problems in affected pigs as well as financial problems for farmers. To minimize these negative consequences of lameness, new treatment and prevention strategies need to be developed and validated using objective and quantitative measurement techniques. An example of ...
Yamaoka H H RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, - - 2014
Pressure dependence of the Ce valence in CeCu_{2}Ge_{2} has been measured up to 24 GPa at 300 K and to 17 GPa at 18-20 K using x-ray absorption spectroscopy in the partial fluorescence yield. A smooth increase of the Ce valence with pressure is observed across the two superconducting (SC) regions without any noticeable ...
Razak Nasrul Anuar - - 2014
The interface pressure between the residual limb and prosthetic socket has a significant effect on an amputee's satisfaction and comfort. This paper presents the design and performance of a new prosthetic socket that uses an air splint system. The air splint prosthetic socket system was implemented by combining the air ...
De Nunzio A M - - 2014
Weight bearing on the paretic lower extremity and transfer of weight from one lower extremity to the other are important goals of stroke rehabilitation. Improvements in these limb loading and weight transfer abilities have been shown to relate to improved performance of many functional activities. Unfortunately, valid and practical clinical ...
Davidson Brian P BP Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Ore; Portland VA Medical Center, Portland, - - 2014
Focal junctional tourniquets (JTs) have been developed to control hemorrhage from proximal limb injuries. These devices may permit greater collateral perfusion than circumferential tourniquets. We hypothesized that JTs eliminate large-vessel pulse pressure yet allow a small amount of residual limb perfusion that could be useful for maintaining tissue viability. Ten healthy ...
Percival Thomas J TJ 59th Medical Wing, Joint Base San Antonio, San Antonio, Texas; The US Army Institute of Surgical Research, Fort Sam Houston, - - 2014
Extremity injury, with concomitant hemorrhagic shock, can result in ischemia-reperfusion injury and the formation of compartment syndrome requiring fasciotomy. As the benefit of prophylactic fasciotomy is unclear, the objective of this study is to determine the functional recovery of an ischemic limb with hemorrhagic shock after prophylactic fasciotomy. Yorkshire swine ...
- - 2014
The Food and Drug Administration (FDA) is classifying the nonpowered lower extremity pressure wrap into class I (general controls). The Agency is classifying the device into class I (general controls) in order to provide a reasonable assurance of safety and effectiveness of the device.
Gholizadeh Hossein - - 2014
Prosthesis suspension systems can alter the distribution of pressure within the prosthetic socket. This study evaluates a new suspension system for lower limb prostheses, and aims to compare the interface pressure and amputees' satisfaction with the new system compared with a common prosthetic suspension system (pin/lock). Ten transtibial amputees walked ...
Ali S A SA Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Malaysia - - - 2014
Lower limb amputee's are greatly affected in dealing with the environmental barriers such as ramps and stairs and reported high interface pressure between the residual limb and socket/liner. Interface pressure between the residual limb and socket/liner can affect the satisfaction and use of the prosthesis. Until now, little attention has ...
Ehrmann Stephan S Institut National de la Santé et de la Recherche Médicale, U955, équipe Biomécanique Cellulaire et Respiratoire, and the Centre National de la Recherche Scientifique, équipe de recherche labellisée 7240, Créteil, France. Drs Ehrmann, Louis, Isabey, andUniversité Paris-Est Créteil, Unité Mixte de Recherche S955, Créteil, France.Service de Réanimation Polyvalente, Centre Hospitalier Régional Universitaire de Tours, Tours, France.Centre d'Étude des Pathologies Respiratoires, Institut National de la Santé et de la Recherche Médicale, UMR 1100/EA6305 F-37032 Tours, France, and the Faculté de Médecine de Tours, UMR 1100 Université François Rabelais, F-37032 Tours, France. - - 2014
Jet nebulizers constitute the aerosolization devices most frequently used during mechanical ventilation. Continuous nebulization can influence the delivered tidal volume (VT) and lead to significant medication loss during expiration. Ventilators thus provide integrated jet nebulization systems that are synchronized during inspiration and ostensibly keep VT constant. This was a bench ...
Eshraghi Arezoo A From the Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, - - 2014
This study aimed to compare the effects of different suspension methods on the interface stress inside the prosthetic sockets of transtibial amputees when negotiating ramps and stairs. Three transtibial prostheses, with a pin/lock system, a Seal-In system, and a magnetic suspension system, were created for the participants in a prospective ...
Zhang Nanrong N Department of Anesthesia, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510655, - - 2014
The protective effects of transient limb ischemia (TLI) induced by several cycles of intermittent pressure cuff inflation and deflation for a period have been widely investigated, however the reliability of this protocol has not been clearly verified. Our study aimed to investigate the reliability of pressure cuff induced TLI in ...
Zaleska Marzanna M Medical Research Center, Polish Academy of Sciences, and Department of Surgery, Central Clinical Hospital , Ministry of Internal Affairs, Warsaw, Poland - - 2014
Abstract Background: The manual lymphatic drainage in lymphedema has proved to be successful; however, this method cannot be applied to millions of patients around the world. The only solution is to offer inexpensive, easily accessible mechanical devices for pneumatic compression (IPC). These devices should be designed on parameters of edema ...
Nicolaides A A Emeritus Professor of Vascular Surgery, Imperial College, London, UK; Professor of Surgery, Nicosia Medical School, Nicosia, Cyprus - - - 2014
CVD is the result of venous reflux, obstruction or a combination of both. So far, attempts to correlate venous hemodynamic measurements with symptoms and signs of chronic venous disease (CVD) have produced poor to moderate results, probably because of lack of methods to quantitate obstruction and combine measurements of reflux ...
Thomas S S BPharm, PhD; Medical Device Consultancy, - - 2014
Objective: The present study was undertaken to demonstrate that the pressures produced by multiple layers of compression bandages applied to artificial limbs of known circumference with predetermined levels of tension can be predicted accurately using the modified Laplace equation. Method: Up to four layers of different bandage types were applied ...
Salminen Aaro V AV From the University of Tampere (A.V.S., V.R., O.P.), School of Medicine; Unesta Research Centre (A.V.S., V.R., O.P.), Tampere; and Department of Respiratory Medicine (O.P.), Tampere University Hospital, - - 2014
A case-control study to measure oxygen and carbon dioxide partial pressures in the legs in order to assess the involvement of peripheral hypoxia or hypercapnia in the pathogenesis of restless legs syndrome (RLS). RLS severity was assessed with a standard questionnaire. Suggested immobilization tests were performed twice in 15 patients ...
Rahman Faisal F Clinical Neurocardiology Section, National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health (NIH), 10 Center Drive MSC-1620, Building 10 Room 5N220, Bethesda, MD, 20892-1620, - - 2014
Chronic autonomic failure syndromes such as Parkinson disease with orthostatic hypotension (PD + OH), multiple system atrophy (MSA), and pure autonomic failure (PAF) typically feature arterial baroreflex failure. Identifying baroreflex-sympathoneural failure from hemodynamic responses to the maneuver usually has been qualitative. We report quantitative methods for evaluating baroreflex-sympathoneural function, based on beat-to-beat ...
Thijssen Dick H J DH 1Liverpool John Moores - - 2014
Introduction. The aim of this study was to examine the contribution of arterial shear to changes in flow mediated dilation (FMD) during sympathetic nervous system activation in healthy humans. Methods. Ten healthy men reported to our laboratory 4 times. Bilateral FMD, shear rate (SR) and catecholamines were examined before/after 10-minutes ...
Lee Rachael R Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK. - - 2014
This tutorial review looks at structural and supramolecular chemistry of molecular solids under extreme conditions, and introduces the instrumentation and facilities that enable single crystal diffraction studies on molecular crystals at both high pressure and low temperature. The equipment used for crystallography under extreme conditions is explored, particularly pressure cells ...
Lee Peter Vee Sin PV Associate Professor, Department of Mechanical Engineering, University of Melbourne, Victoria, 3010, Australia. - - 2014
This study investigated a low-cost and low-skill dependent pressure casting technique (PCAST) to fabricate and fit transtibial (TT) prosthetic sockets in a developing country. Thirteen adult volunteers (average age 47 yr) with unilateral TT amputation participated. After fitting, five participants were lost to follow-up (four rejected the prosthesis and one ...
Souza Alexandre Navarro - - 2014
Cranial cruciate ligament rupture (CCLR) is one of the most important stifle injuries and a common cause of lameness in dogs. Our objective was to measure the vertical forces in the pads of Pitbulls with cranial cruciate ligament rupture (CCLR) using a pressure sensitive walkway. A pressure sensitive walkway was ...
Barter Linda S LS Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, CA, - - 2014
To assess agreement between carotid arterial pressure and auricular arterial, thoracic limb Doppler or thoracic limb oscillometric blood pressure measurements. Prospective experimental study. Six adult New Zealand white rabbits. Rabbits were anesthetized with isoflurane in oxygen at 1, 1.5 and 2 MAC on two separate occasions. Catheters in the auricular ...
Meijer Ellen - - 2014
Gait evaluation is difficult in pigs, especially when objective and quantitative data are needed, thus little research has been conducted in this species. There is considerable experience, however, with objective gait analysis in other species, such as horses and dogs. In this study, a pressure mat was used to establish ...
Bura Alessandra A Service de médecine vasculaire, Pôle cardiovasculaire et métabolique, Centre hospitalo-universitaire de Toulouse, Toulouse, France; Université de Toulouse III, Paul Sabatier, Toulouse, - - 2014
Non-revascularizable critical limb ischemia (CLI) is the most severe stage of peripheral arterial disease, with no therapeutic option. Extensive preclinical studies have demonstrated that adipose-derived stroma cell (ASC) transplantation strongly improves revascularization and tissue perfusion in ischemic limbs. This study, named ACellDREAM, is the first phase I trial to evaluate ...
de Castro Marcelo Peduzzi MP Center of Research, Education, Innovation and Intervention in Sport, Faculty of Sport, University of Porto, Porto, Portugal; Porto Biomechanics Laboratory, University of Porto, Porto, Portugal. Electronic address: - - 2014
To describe and compare the plantar pressures, temporal foot roll-over, and ground reaction forces (GRFs) between both limbs of subjects with unilateral transfemoral amputation and with able-bodied participants during walking. We also verify the relevance of a force plate and a pressure plate to discriminate changes in gait parameters of ...
Nelson Tyler S TS Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, - - 2014
The ability to quantify collecting vessel function in a minimally invasive fashion is crucial to the study of lymphatic physiology and the role of lymphatic pump function in disease progression. Therefore, we developed a highly sensitive, minimally invasive research platform for quantifying the pumping capacity of collecting lymphatic vessels in ...
Gray Charla Krystine CK School of Rehabilitation Therapy, Queen's University, Kingston, ON, Canada K7L - - 2014
Background. Weight-bearing asymmetry and impaired balance may contribute to the increased fall risk in people with stroke when rising to stand from sitting. Objective. This study investigated the effect of constraint-induced movement (CIM) strategies on weight-bearing symmetry and balance during sit-to-stand in people with stroke. Methods. A nonrandom convenience sample ...
Shiga Yuka Y Department of Anesthesiology, National Center for Global Health and Medicine Hospital, Tokyo, Japan. Electronic address: - - 2014
Thalidomide was available for use over-the-counter between 1958 and 1962, and more than 300 thalidomide-impaired people have been confirmed in Japan. Currently, thalidomide-impaired people are nearing the age of 50 years and sometimes require medical treatment or surgery. However, a sphygmomanometer cannot be used to measure the blood pressure in ...
Morrison Alanna C AC University of Texas Health Science Center at Houston, Houston, Texas, United States of - - 2014
Genome-wide association studies (GWAS) identified multiple loci for blood pressure (BP) and hypertension. Six genes - ATP2B1, CACNB2, CYP17A1, JAG1, PLEKHA7, and SH2B3 - were evaluated for sequence variation with large effects on systolic blood pressure (SBP), diastolic blood pressure (DBP), pulse pressure (PP), and mean arterial pressure (MAP). Targeted ...
Laitman Jeffrey T - - 2013
As mammals evolved, the larynx accrued added importance in new activities such as effectuating intra-abdominal pressure control during the transition from egg-laying to birthing and control of intrathoracic stabilization as movement of the upper limb required rib stabilization during climbing. The proper development of the larynx during the embryonic period ...
Zaleska Marzanna M 1 Medical Research Centre, Polish Academy of Sciences, Department of Surgery and Epigenetics, Central Clinical Hospital , Warsaw, Poland - - 2013
Abstract Pneumatic compression of tissues with lymph stasis is, aside from the manual massage, a commonly used therapeutic modality in limb lymphedema. A number of pneumatic devices have been constructed. There is lack of reports of comparative studies determining inflation pressure levels, inflation/deflation cycle times, and total pumping times. Aim: ...
Rodriguez-Merchan E Carlos - - 2013
Acute compartment syndrome (ACS) is characterized by an increase in pressure (intramuscular pressure) within a muscle compartment, which reduces capillary perfusion threatening tissue survival. Persistence of this increased pressure for a few hours will result in necrosis of muscle and nerve tissue, with contracture in the affected limb and permanent ...
Ramseier Lea C - - 2013
Icelandic horse riding practices aim to place the rider further caudally on the horse's back than in English riding, claiming that a weight shift toward the hindquarters improves the quality of the tölt (e.g. giving the shoulder more freedom to move). This study compared saddle pressure patterns and the effects ...
Oosterlinck M - - 2013
Empirically, equine distal limb lameness is often linked to hoof imbalance. To objectively quantify dynamic toe-heel and medio-lateral hoof balance of the vertical ground reaction force in sound sport horses, seven Royal Dutch Sport Horses were led at the walk and trot over a dynamically calibrated pressure plate. Forelimb hoof ...
Liu Hong-Yun - - 2013
Pneumatic tourniquets are medical devices that occlude blood flow to distal part of extremities and are commonly used in upper limb surgeries to provide a dry, clean and bloodless field. To decrease pressure-related injuries and potential risk of complications subjected to the high inflation pressure of pneumatic tourniquet, minimal inflation ...
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