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Results 101 - 150 of 1971
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Benet Arnau A Skull Base and Cerebrovascular Laboratory, Department of Neurosurgery, University of California, San Francisco, California; - - 2014
Object Surgical simulation using postmortem human heads is one of the most valid strategies for neurosurgical research and training. The authors customized an embalming formula that provides an optimal retraction profile and lifelike physical properties while preventing microorganism growth and brain decay for neurosurgical simulations in cadavers. They studied the ...
Efthimiopoulos Ilias - - 2014
The high-pressure structural and vibrational properties of Bi2S3 have been probed up to 65 GPa with a combination of experimental and theoretical methods. The ambient-pressure Pnma structure is found to persist up to 50 GPa; further compression leads to structural disorder. Closer inspection of our structural and Raman spectroscopic results ...
Heyes D M DM Department of Mechanical Engineering, Imperial College London, Exhibition Road, South Kensington, London SW7 2AZ, United - - 2014
Various formulas for the local pressure tensor based on a spherical subvolume of radius, R, are considered. An extension of the Method of Planes (MOP) formula of Todd et al. [Phys. Rev. E 52, 1627 (1995)] for a spherical geometry is derived using the recently proposed Control Volume formulation [E. ...
Cioni Patrizia P Istituto di Biofisica, Sezione di Pisa, Area della Ricerca, CNR, via G. Moruzzi, 1, 56124, Pisa, - - 2014
The pressure-induced unfolding of the mutant C112S azurin from Pseudomonas aeruginosa was monitored both under steady state and dynamic conditions. The unfolding profiles were obtained by recording the spectral shift of the fluorescence emission as well as by phosphorescence intensity measurements. We evaluated the difference in free energy, ΔG, as ...
Fraňová Miroslava Dékány MD Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, CZ-12116, Czech - - 2014
The lateral pressure profile of lipid bilayers has gained a lot of attention, since changes in the pressure profile have been suggested to shift the membrane protein conformational equilibrium. This relation has been mostly studied with theoretical methods, especially with molecular dynamics simulations, since established methods to measure the lateral ...
Hallow Karen Melissa KM Novartis Pharmaceuticals - - 2014
Reproducibly differential responses to different classes of antihypertensive agents are observed among hypertensive patients, and may be due to interindividual differences in hypertension pathology. Computational models provide a tool for investigating the impact of underlying disease mechanisms on the response to antihypertensive therapies with different mechanisms of action. Here we ...
Devi Anastasia Fitria AF School of Applied Sciences, RMIT University, Melbourne, VIC 3001, Australia; CSIRO Animal, Food and Health Sciences, Werribee, VIC 3030, - - 2014
High pressure processing (HPP) can induce structure development in macromolecules which are distinct from those of conventional thermal treatments. Gelation properties of whey protein (5-20% w/w) upon 15min HPP at 600MPa and 5 or 30°C (initial sample temperatures) were examined in the presence and absence of 5% w/w gelatin. The ...
Mishra Sukhada - - 2014
FeSe has been an interesting member of the Fe-based superconductor family ever since the discovery of superconductivity in this simple binary chalcogenide. Simplicity of composition and ease of synthesis has made FeSe in particular, very lucrative as a test system to understand the unconventional nature of superconductivity, especially in low-dimensional ...
Stuiver Arjan A Neuropsychology, University of Groningen, Grote Kruisstraat 2/1, 9712 TS Groningen, The Netherlands. Electronic address: - - 2014
With on-going increases in traffic density and the availability of more and more in-vehicle technology, driver overload is a growing concern. To reduce the burden of workload on the driver, it is essential that support systems become available are able to use estimations of drivers' workload. In this paper a ...
Dambacher Michael M Department of Psychology (Box D29), Universität Konstanz, Universitätsstr. 10, 78464, Constance, Germany, - - 2014
The negative correlation between speed and accuracy in perceptual decision making is often explained as a tradeoff, where lowered decision boundaries under time pressure result in faster but more error-prone responses. Corresponding implementations in sequential sampling models confirmed the success of this account, which has led to the prevalent assumption ...
Grasland-Mongrain Pol - - 2014
A Lorentz-force hydrophone consists of a thin wire placed inside a magnetic field. When under the influence of an ultrasound pulse, the wire vibrates and an electrical signal is induced by the Lorentz force, which is proportional to the pulse amplitude. In this study, a compact prototype of such a ...
Cameron Michelle H MH Oregon Health & Science University-Neurology, 3181 SW Sam Jackson Park Rd L226, Portland, OR 97239. - - 2014
The objective of this study was to evaluate relationships between subjective and objective measures of balance in multiple sclerosis (MS). In 54 subjects with MS, balance was measured objectively with the Sensory Organization Test (SOT) using dynamic posturography and subjectively with the Activities-specific Balance Confidence (ABC) Scale and the Falls ...
Bregar Maksimilijan M University of Ljubljana, Faculty of Electrical Engineering, Laboratory of Imaging Technologies, Tržaška cesta 25, 1000, Ljubljana, - - 2014
Contact pressure induced by manually operated fiber optic probes can significantly affect the optical properties of the studied tissue. If the contact pressure and the changes in optical properties are measured properly, then the complementary information can be used to obtain additional insight into the tissue physiology. However, as reliable ...
Ma Chunhua C School of Nursing, Guangzhou Medical University, Guangzhou, China. Electronic address: - - 2014
This study tests the effectiveness of motivational interviewing compared with the usual care for Chinese hypertensive patients. A randomised controlled trial was used. One hundred and twenty eligible participants were randomly assigned to either the control group (usual care group) or the intervention group (motivational interviewing group). The results of ...
Bowen Sean S Technical University of Denmark, Department of Electrical Engineering, Kgs. Lyngby, - - 2014
A systematic study of the performance of the dissolution process in dissolution-DNP is presented. A relatively simple set of modifications is made to the standard Hypersense dissolution system to enable polarization of large volume samples. These consist of a large volume sample cup along with supporting modifications to the dissolution ...
Raven Peter B PB Department of Integrative Physiology and Anatomy, University of North Texas Health Science Center, 3500 Camp Bowie Boulevard, Fort Worth, TX, 76107, USA, - - 2014
While the importance of regulating arterial blood pressure within a 'normal' range is widely appreciated, the definition of 'normal' and the means by which humans and other species regulate blood pressure under various conditions remain hotly debated. The effects of diverse physiological, pathological and environmental challenges on blood pressure and ...
Massé F F Laboratory of Movement Analysis and Measurement (LMAM) , EPFL, Lausanne, - - 2014
Despite its medical relevance, accurate recognition of sedentary (sitting and lying) and dynamic activities (e.g. standing and walking) remains challenging using a single wearable device. Currently, trunk-worn wearable systems can differentiate sitting from standing with moderate success, as activity classifiers often rely on inertial signals at the transition period (e.g. ...
Makhalov Vasiliy V Institute of Applied Physics, Russian Academy of Sciences, ulitsa Ulyanova 46, Nizhniy Novgorod, 603000, - - 2014
Using an ultracold gas of atoms, we have realized a quasi-two-dimensional Fermi system with widely tunable s-wave interactions nearly in a ground state. Pressure and density are measured. The experiment covers physically different regimes: weakly and strongly attractive Fermi gases and a Bose gas of tightly bound pairs of fermions. ...
Maeda Yoji Y Department of Life Science and Sustainable Chemistry, Faculty of Engineering, Tokyo Polytechnic University, 1583 Iiyama, Atsugi, Kanagawa 243-0297, - - 2014
The effect of pressure on the nanostructure of a thermotropic cubic (Cub) mesogen 1,2-bis(4'-n-alkoxybenzoyl)hydrazine (BABH-n; n is the number of carbon atoms in the alkyl chain) was investigated under elevated pressures up to 140 MPa by an X-ray diffraction (XRD) technique. Four compounds, BABH-12, -14, -16 and -18, were examined ...
Vallès Henri H Department of Biological and Chemical Sciences, The University of the West Indies, Cave Hill Campus, Cave Hill, - - 2014
There is great need to identify simple yet reliable indicators of fishing effects within the multi-species, multi-gear, data-poor fisheries of the Caribbean. Here, we investigate links between fishing pressure and three simple fish metrics, i.e. average fish weight (an estimate of average individual fish size), fish density and fish biomass, ...
Slark J J 1] Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand [2] Imperial College Cerebrovascular Research Unit (ICCRU), Imperial College London, London, - - 2014
Little is known about the general public's understanding of the role of blood pressure (BP) in contributing to heart disease and stroke. This study aimed to gain a wider understanding of the knowledge and awareness of BP in a selected London population. As part of a stroke awareness campaign, members ...
Zaheer S S Department of Paediatric Nephrology and NIHR/Wellcome Trust Children's Clinical Research Facility, The University of Manchester, Manchester Academic Health Science Centre, Royal Manchester Children's Hospital, , Manchester, - - 2014
Blood pressure (BP) monitoring in UK children at risk of hypertension takes place predominantly in secondary and tertiary care. To investigate (i) the availability of paediatric BP equipment in primary care (PC) and (ii) the confidence of PC professionals in measuring and interpreting children's BP. 103 PC practices were approached ...
Agnoletti Davide D aDiagnostic and Therapeutic Center, Hotel Dieu Hospital, Paris bPulse Wave Consulting, Saint Leu la Foret, France cDepartment of Internal Medicine, University of Bologna, Bologna, - - 2014
Central blood pressure (cBP) and pulse pressure amplification (PPA) are receiving renewed interest with the increase in the availability of noninvasive techniques that enable its measurement. However, to date, there is no standardized protocol to validate their accuracy. Although invasive comparison seems intellectually ideal, it will soon raise technical and ...
Zicha J J Institute of Physiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic. - - 2014
High blood pressure (BP) of spontaneously hypertensive rats (SHR) is maintained by enhanced activity of sympathetic nervous system (SNS), whereas that of Ren-2 transgenic rats (Ren-2 TGR) by increased activity of renin-angiotensin system (RAS). However, both types of hypertension are effectively attenuated by chronic blockade of L-type voltage-dependent calcium channel ...
Sagarra-Tió María M 1ABS Canaletes, Institut Català de la Salut, - - 2014
Background:Ambulatory blood pressure monitoring (ABPM) was implemented in our primary care setting four years ago. Since then, 450 ABPMs have been performed and 69 riser subjects identified. The riser pattern is an independent risk factor for both incidence of cardiovascular events and their associated mortality.Objective:The purpose of this study was ...
Schmieder Roland E RE Department of Nephrology and Hypertension, University Hospital Erlangen, Germany. Electronic address: - - 2014
Although the blood pressure (BP) of many patients can be controlled using standard combinations, treatment of hypertension frequently represents a clinical challenge to the primary care physician. This article will review best practices for managing patients with easy- and difficult-to-treat hypertension, including preferred antihypertensive combinations, optimizing adherence and persistence, recognizing ...
Dellarole Mariano - - 2014
Fluorescence is the most widely used technique to study the effect of pressure on biochemical systems. The use of pressure as a physical variable sheds light into volumetric characteristics of reactions. Here we focus on the effect of pressure on protein solutions using a simple unfolding example in order to ...
Vallons Katleen J R - - 2014
High pressure processing is a promising non-thermal technology for the development of fresh-like, shelf-stable foods. The effect of high pressure on starch has been explored by many researchers using a wide range of techniques. In general, heat and pressure have similar effects: if sufficiently high, they both induce gelatinization of ...
Bergeot Baptiste B LUNAM Université, Université du Maine, Unité Mixte de Recherche, Centre National de la Recherche Scientifique 6613, Laboratoire d'Acoustique, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, - - 2014
Using an artificial mouth with an accurate pressure control, the onset of the pressure oscillations inside the mouthpiece of a simplified clarinet is studied experimentally. Two time profiles are used for the blowing pressure: in a first set of experiments the pressure is increased at constant rates, then decreased at ...
Pollet Pamela P School of Chemistry and Biochemistry, Georgia Institute of - - 2014
The high pressure sapphire cell apparatus was constructed to visually determine the composition of multiphase systems without physical sampling. Specifically, the sapphire cell enables visual data collection from multiple loadings to solve a set of material balances to precisely determine phase composition. Ternary phase diagrams can then be established to ...
Lago Leatitia L Synchrotron SOLEIL, L'Orme des Merisiers, F-91192 Gif-sur-Yvette, - - 2014
In order to carry out precise laboratory measurements of infrared absorption intensities, line profiles of molecules and organic volatile compounds for atmospheric chemistry in planetary and upper earth atmospheric layers, precise gas pressure measurement between 10(-3) and a few mbars in the 77-300 K temperature range is necessary. A prototype, ...
Niu Zhe Z State Key Laboratory for Manufacturing Systems Engineering, Institute of Precision Engineering, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, People's Republic of - - 2014
This paper describes a design method for optimizing sensitivity of piezoresistive pressure sensor in high-pressure and high-temperature environment. In order to prove the method, a piezoresistive pressure sensor (HPTSS) is designed. With the purpose of increasing sensitivity and to improve the measurement range, the piezoresistive sensor adopts rectangular membrane and ...
Kholiya Kuldeep K Department of Applied Science, B.T. Kumaon Institute of Technology, Dwarahat 263653, - - 2014
A simple theoretical model is developed to study the high pressure behavior of solids and is applied to evaluate the pressure for MgO in case of large compression along with Shanker, Tait, Vinet, and Birch-Murnaghan equation of states (EOSs). These EOSs are also tested for the basic requirements revealed from ...
Ribezzo Sara S 0000-0002-4501-9851 School of Nursing, University of Trieste, 34100 Trieste, - - 2014
Introduction. Noninvasive blood pressure (NIBP) monitoring methods are widely used in critically ill patients despite poor evidence of their accuracy. The erroneous interpretations of blood pressure (BP) may lead to clinical errors. Objectives. To test the accuracy and reliability of aneroid (ABP) and oscillometric (OBP) devices compared to the invasive ...
Bruhn Brandon R BR Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, United States of - - 2014
This paper describes osmotically-driven pressure generation in a membrane-bound compartment while taking into account volume expansion, solute dilution, surface area to volume ratio, membrane hydraulic permeability, and changes in osmotic gradient, bulk modulus, and degree of membrane fouling. The emphasis lies on the dynamics of pressure generation; these dynamics have ...
Inoue Akiomi A Department of Mental Health, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan, Kitakyushu, - - 2014
Recent epidemiological research in Europe has reported that two groups of job demands, i.e., challenges and hindrances, are differently associated with work engagement. The purpose of the present study was to replicate the cross-sectional association of workload and time pressure (as a challenge) and role ambiguity (as a hindrance) with ...
Nicolay Pascal P Carinthian Tech Research (CTR AG), Villach/St. Magdalen 9524, Austria. - - 2014
This paper will discuss the results obtained with a first prototype of a completely passive and wireless low pressure sensor. The device is a heat conductivity gauge, based on a wireless and passive SAW temperature sensor. The required heating energy is applied to the sensor using inductive coupling. The prototype ...
O'Neal Pamela V - - 2014
Removal of secretions from the subglottic space, which is the larynx cavity below the glottis that contains the vocal cords, reduces the risk for ventilator associated pneumonia. Relationships between factors associated with subglottic secretion volume and viscosity have not been investigated. Subglottic secretions may have a possible link with systemic ...
Travers-Trolet Morgane M IFREMER, Fisheries Laboratory, Boulogne sur Mer, - - 2014
The effects of climate and fishing on marine ecosystems have usually been studied separately, but their interactions make ecosystem dynamics difficult to understand and predict. Of particular interest to management, the potential synergism or antagonism between fishing pressure and climate forcing is analysed in this paper, using an end-to-end ecosystem ...
Rand David G DG 1] Department of Psychology, Yale University, New Haven, Connecticut 06511, USA [2] Department of Economics, Yale University, New Haven, Connecticut 06511, USA [3] Yale School of Management, Yale University, New Haven, Connecticut 06511, USA - - 2014
Cooperation is central to human societies. Yet relatively little is known about the cognitive underpinnings of cooperative decision making. Does cooperation require deliberate self-restraint? Or is spontaneous prosociality reined in by calculating self-interest? Here we present a theory of why (and for whom) intuition favors cooperation: cooperation is typically advantageous ...
Yuan Chaoxia C Application Laboratory, Japan Agency for Marine-Earth Science and Technology, Yokohama 236-0001, - - 2014
The present study shows the existence of intrinsic coastal air-sea coupled phenomenon in the coastal ocean off Baja California and California in boreal summer for the first time. It contributes significantly to the interannual sea surface temperature (SST) anomalies there. An initial decrease/increase in the equatorward alongshore surface winds weakens/strengthens ...
Li Dafang D LCP, Institute of Applied Physics and Computational Mathematics, Beijing 100088, People's Republic of - - 2014
We investigate, through first-principles molecular dynamics simulations, the high-pressure melting of BeO in the range 0 ≤ p ≤ 100 GPa. The wurtzite (WZ), zinc blend (ZB), and rocksalt (RS) phases of BeO are considered. It is shown that below 40 GPa, the melting temperature for the WZ phase is higher than ...
Donahue Katrina E KE University of North Carolina at Chapel Hill, Department of Family Medicine, 590 Manning Dr, Chapel Hill, NC 27599. Email: - - 2014
Patient and practice perspectives can inform development of team-based approaches to improving blood pressure control in primary care. We used a community-based participatory research approach to assess patient and practice perceptions regarding the value of team-based strategies for controlling blood pressure in a rural North Carolina population from 2010 through ...
Masson Gustavo S GS Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, - - 2014
Baroreflex dysfunction, oxidative stress and inflammation, important hallmarks of hypertension, are attenuated by exercise training. In this study, we investigated the relationships and time-course changes of cardiovascular parameters, pro-inflammatory cytokines and pro-oxidant profiles within the hypothalamic paraventricular nucleus of the spontaneously hypertensive rats (SHR). Basal values and variability of arterial ...
Kubba Ali E AE Fusion Innovations Ltd, Research and Innovation Services, Birmingham Research Park, Vincent Drive, Edgbaston, Birmingham, B15 2SQ, UK. - - 2014
This article presents an overview on the state of the art of Tyre Pressure Monitoring System related technologies. This includes examining the latest pressure sensing methods and comparing different types of pressure transducers, particularly their power consumption and measuring range. Having the aim of this research to investigate possible means ...
Peng Tao T State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR - - 2014
The synthesis of graphene via decomposition of SiC has opened a promising route for large-scale production of graphene. However, extremely high requirements for almost perfectly ordered crystal SiC and harsh process conditions such as high temperatures (>1200°C) and ultra-high vacuum are two significant challenges hindering its wide use to synthesize ...
Klinis S - - 2014
An action research study was carried out to comprehend reasons for poor blood pressure control and to explore ways to disperse commonly-held myths in a rural community in northern Greece. Registered patients under antihypertensive treatment, with a routine follow-up appointment in a primary health care center, were surveyed with the ...
Kaniewski David D Laboratoire d'Ecologie Fonctionnelle et Environnement (EcoLab), Université Paul Sabatier-Toulouse 3, Toulouse, France; Laboratoire d'Ecologie Fonctionnelle et Environnement (EcoLab), Centre National de la Recherche Scientifique, Toulouse, France; Institut Universitaire de France, Paris, - - 2014
Although human activity is considered to be a major driving force affecting the distribution and dynamics of Mediterranean ecosystems, the full consequences of projected climate variability and relative sea-level changes on fragile coastal ecosystems for the next century are still unknown. It is unclear how these waterfront ecosystems can be ...
Fuchizaki Kazuhiro K Department of Physics, Ehime University, Matsuyama 790-8577, - - 2013
The low-pressure crystalline phase of a molecular crystal, SnI4, has a rising melting curve that breaks abruptly at around 1.5 GPa, beyond which it becomes almost flat, with a slight maximum at about 3 GPa. Although the overall aspect of this melting curve can be captured by the Kumari-Dass-Kechin equation, ...
Wu Ping P Department of Thermal Science and Energy Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230027, China. - - 2013
We present an off-the-shelf device combined with some commercial adapters that performs as a micro droplet generator. The advantage of this unit lies in that it is assembled conveniently, connected elegantly with other droplet detection equipment, and it is high-pressure enduring. Most importantly, this Micro-Cross circumvents the problem of hydrophilicity ...
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