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Results 401 - 450 of 2051
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Marino C L - - 2011
Background: Greyhounds are known to have a higher systemic arterial blood pressure (BP) than non-Greyhound dogs. Objectives: The purpose of this study was to determine whether the high systemic BP was because of the white-coat effect. Animals: Twenty-two healthy retired racing Greyhounds (RRG) enrolled in a blood donation program. Materials/Methods: ...
Lee Dong Woog - - 2011
We fit the size distribution of liquid-ordered (L(o)) domains measured from fluorescence images of model cytoplasmic myelin monolayers with an equilibrium thermodynamic expression that includes the competing effects of line tension, λ, dipole density difference, Δm, and the mixing entropy. From these fits, we extract the line tension, λ, and ...
Meder Benjamin - - 2011
BACKGROUND: Since their introduction, genetically modified mice have become more and more important to examine molecular mechanisms involved in vascular growth. Today the gold standard for measuring vessel conductivity is to directly assess in vivo perfusion. However, this usually becomes more complicated the smaller the animal, especially due to the ...
Kwiatek M A - - 2011
The esophagogastric junction (EGJ) is a complex structure that challenges accurate manometric recording. This study aimed to define EGJ pressure morphology relative to the squamocolumnar junction (SCJ) during respiration with 3D-high resolution manometry (3D-HRM). A 7.5-cm long 3D-HRM array with 96 independent solid-state pressure sensors (axial spacing 0.75 cm, radial ...
Tarafder Abhijit - - 2011
In SFC, the key chromatographic parameters, the retention factors and the column efficiency, strongly depend on the density of the mobile phase. This indicates that the isodensity or isopycnic plots, drawn on the pressure-temperature plane, can provide an effective tool to help analyzing how the chromatograms obtained in SFC evolve, ...
Kollias Anastasios - - 2011
The ankle-brachial index (ABI) is a method used widely for peripheral arterial disease (PAD) diagnosis and cardiovascular risk prediction. This study validated automated ABI measurements taken using an oscillometric blood pressure (BP) monitor allowing simultaneous arm-leg BP measurements. A total of 93 patients (hypertension 83%; dyslipidemia 72%; diabetes 45%; cardiovascular ...
Suwannachat B - - 2011
Please cite this paper as: Suwannachat B, Laopaiboon M, Tonmat S, Siriwachirachai T, Teerapong S, Winiyakul N, Thinkhamrop J, Lumbiganon P. Rapid versus stepwise application of negative pressure in vacuum extraction-assisted vaginal delivery: a multicentre randomised controlled non-inferiority trial. BJOG 2011; DOI: 10.1111/j.1471-0528.2011.02992.x. Objective  To evaluate whether the application of ...
Leung Lettie C K - - 2011
Purpose To determine the prevalence, risk factors for and patterns of hypertension in Chinese adolescents based on a territory-wide school based screening programme in Hong Kong. Methods Cross-sectional anthropometric and oscillometric blood pressure (BP) measurements and lifestyle information were obtained as part of a growth survey of students from randomly ...
Kiełczyński P - - 2011
Viscosity measurements were carried out on triolein at pressures from atmospheric up to 650MPa and in the temperature range from 10°C to 40°C using ultrasonic measuring setup. Bleustein-Gulyaev SH surface acoustic waves waveguides were used as viscosity sensors. Additionally, pressure changes occurring during phase transition have been measured over the ...
Jessani Saleem - - 2012
Urine albumin excretion in the high normal range [urine albumin to creatinine ratio (UACR) 10-29 mg/g)] predicts hypertension in European-origin populations. However, the prognostic significance of UACR in the high normal range for incident hypertension is unclear in Indo-Asians. The objective of this study was to examine the relationship of ...
Qin Feng - - 2011
Ultrabroadband radiation from Yb<sub>2</sub>O<sub>3</sub> at ambient and low air pressures was investigated under the excitation of a 980 nm diode laser. The radiation was confirmed to be blackbody radiation, and it is sensitive to environmental air pressure in the way that the integrated radiation intensity decreases linearly with increasing air pressure. ...
Theiler Lorenz G - - 2011
BACKGROUND:: This prospective, randomized, controlled trial compares the performance of the pediatric i-gel (Intersurgical Ltd., Wokingham, United Kingdom) with the Ambu AuraOnce laryngeal mask (Ambu A/S, Ballerup, Denmark) in anesthetized and ventilated children. METHODS:: With ethics committee approval and written informed consent, the authors included 208 children, aged 0-17 yr, ...
Pedrini Luciano A - - 2011
Purpose: Intra-individual comparison of technical and clinical characteristics of two hemodiafiltration (HDF) strategies, namely, post-dilution HDF (post-HDF) with a high-flux a-polysulfone hemodiafilter and reverse mid-dilution HDF (MD-HDF). ?Methods: Fifteen patients who were stable on RRT were randomly submitted to both HDF techniques under matched operational conditions. Removal of small and ...
Sérgio Chiarelli Paulo - - 2011
BACKGROUND: Urban air pollutants are associated with cardiovascular events. Traffic controllers are at high risk for pollution exposure during outdoor work shifts. OBJECTIVE: The purpose of this study was to evaluate the relationship between air pollution and systemic blood pressure in traffic controllers during their work shifts. METHODS: This cross-sectional ...
Liekens Anuschka - - 2011
By comparing the pressure drop in a column where the meso-pores of the particles have been blocked using the Total Pore Blocking (TPB) method to measure the interstitial volume of the column with that in the same column when the particle meso-pores are fully open, it could be demonstrated in ...
Lobov G I - - 2011
We studied the relationship between the length and tension in isolated strips of the capsules of bovine mesenteric lymph nodes. The deformation-strain and radius-pressure relationships were established in the lymph node. The capsule possesses high distensibility, modulus of elasticity at optimal tension was 0.09×10(5) N/m(2). Smooth muscle activation produces a ...
Tobari Hiroko - - 2011
Objectives: To provide an occupational physician-pharmacist cooperative management for hypertension, we aimed to improve blood pressure (BP) control for workers with high-normal BP or hypertension. Method: Health checkups were performed from May 2005 to May 2008 for male professional grooms and exercise riders aged 20-69 years working at Miho Training ...
Fonseca Jeison - - 2011
This article presents improvement on a physical cardiovascular simulator (PCS) system. Intraventricular pressure versus intraventricular volume (PxV) loop was obtained to evaluate performance of a pulsatile chamber mimicking the human left ventricle. PxV loop shows heart contractility and is normally used to evaluate heart performance. In many heart diseases, the ...
Laing Sheridan - - 2011
Introduction: This review addresses the different prosthetic socket designs for trans-tibial amputees, the biomechanics behind the designs and the current state of the field. Of particular focus is the classic patella-tendon bearing (PTB) socket and the more recent sockets manufactured using pressure casting techniques and the theory, biomechanics and clinical ...
Wangsupadilok Boonchai - - 2011
To investigate the impact of central corneal thickness (CCT) on the intraocular pressure (IOP) measurement by non-contact tonometry (NCT). Eye examination data of normal volunteers aged between 18-96 years and intraocular pressure less than 22 mmHg were retrospectively reviewed. Subjects with possible conditions that affected the results of CCT and ...
Lahham Shadi - - 2011
Digital tourniquets used in the emergency department have been scrutinized due to complications associated with their use, including neurovascular injury secondary to excessive tourniquet pressure and digital ischemia caused by a forgotten tourniquet. To minimize these risks, a conspicuous tourniquet that applies the least amount of pressure necessary to maintain ...
Shechtman M Y - - 2011
Lung separation is frequently used during lung resection to facilitate surgery and hypoxaemia may occur because of increasing pulmonary shunt. In this study, we tested a method of mini-ventilation to the non-dependent lung and compared it to continuous positive airway pressure (CPAP) to improve oxygenation during lung resection. Thirty-eight adult ...
Chauveau M - - 2011
To compare results of numerical simulation of lower limb venous return with those of in vivo measurements, in normal subjects, and those with venous incompetence. the venous return simulator (VRS) is a mathematical model which takes into account architecture, dimensions, and compliance of the venous network, blood viscosity, valve function, ...
Lee Ji Ho - - 2011
Many pieces of previous research on measuring blood pressure (BP) using different methods focused on the disparity in the results. However, none of them dealt with the disparity caused by the difference in age and inhalation anesthetics. We attempted to find the variance in accordance with age, body part, and ...
Hug Caleb W - - 2011
To compare invasive blood pressure measurements recorded using an automated archiving method against clinician-documented values from the same invasive monitor and determine which method of recording blood pressure is more highly associated with the subsequent onset of hypotension. Retrospective comparative analysis. Intensive care patients in a university hospital. Mixed medical/surgical ...
Richmond Susan A - - 2011
Standing waves can cause measurement errors when sound-pressure level (SPL) measurements are performed in a closed ear canal, e.g., during probe-microphone system calibration for distortion-product otoacoustic emission (DPOAE) testing. Alternative calibration methods, such as forward-pressure level (FPL), minimize the influence of standing waves by calculating the forward-going sound waves separate ...
Grossi Alberto - - 2011
In order to investigate the synergistic cooperation between high pressure treatment (HP) and carrot dietary fibre, two formulations of pork sausages containing different percentage of carrot dietary fibre were pressurized at 500 and 600MPa, for 1 second, 3, 6, and 9min at 40, 50, and 60°C. HP treatments significantly increase ...
Cho Jun Hwi - - 2011
AIM OF STUDY: In the present study, we investigated trans-nasal cooling in settings of pulseless electrical activity (PEA). We hypothesized that early trans-nasal cooling during CPR improves outcomes when cardiac arrest is associated with PEA. METHODS: Ventricular fibrillation (VF) was electrically induced in 16 domestic male pigs weighing 40±3kg. After ...
Pereira Fabiana Quartiero - - 2011
Objective  To compare intraocular pressure (IOP) measurements made on healthy adult rabbits without the effect of tranquilizers using the new applanation tonometer, Tono-Pen Avia(®) , and the rebound tonometer Tonovet(®) . Methods  Intraocular pressure was measured throughout the day (6:00, 9:00, 12:00, 15:00, and 18:00 h) in 38 adult New Zealand ...
Chang Yu - - 2011
In various conditions of blood demand of circulatory system, the autonomic regulations system of body regulates the heart rate (HR) to maintain the arterial pressure (AP) constant, where the HR is considered as the controlled variable indicating the blood demands of the circulatory system. Therefore, model-free adaptive controller is used ...
Nikischin Werner - - 2011
OBJECTIVE:: A device for the application of continuous positive airway pressure to switch injected breathing gas to the outlet during expiration, known as Infant Flow, claims to reduce work of breathing and peak pressure change. So far the Infant Flow system has been investigated in lung models with tidal volumes ...
Vardeman Charles F CF - - 2011
We have developed a new isobaric-isothermal (NPT) algorithm which applies an external pressure to the facets comprising the convex hull surrounding the system. A Langevin thermostat is also applied to the facets to mimic contact with an external heat bath. This new method, the "Langevin Hull", can handle heterogeneous mixtures ...
Spurrier Edward - - 2011
It is common practice in wrist arthroscopy to suspend the patient's arm using Chinese finger traps and to distract the wrist joint by applying weight to the arm at the elbow. This may apply significant pressure to the fingers, and potentially damage the digital nerves. We examined the pressure applied ...
Durrani Anisa M - - 2011
A cross-sectional study among 701 school children (12-16 years) was conducted in Aligarh to find out the prevalence of hypertension and to correlate school going adolescent's blood pressure with age, sex, height and weight. The weight was taken by a standardized weighing machine while height was measured using a standard ...
Leblanc Nicole L - - 2011
To characterize ocular findings in hypertensive dogs, determine prevalence of hypertension in dogs with ocular disease suggestive of hypertension, and examine possible relationships between degree of hypertension and ocular disease. Retrospective case series. 65 dogs initially referred for blood pressure measurement (n = 22), ophthalmic examination (25), or both (18). ...
Deprez Jean-François - - 2011
Pressure ulcers are areas of soft tissue breakdown induced by a sustained mechanical stress that damages the skin and underlying tissues. They represent a considerable burden to the society in terms of health care and cost. Yet, techniques for prevention and detection of pressure ulcers still remain very limited. In ...
Kamiya Atsunori - - 2011
Although the dynamic characteristics of the baroreflex system have been described by baroreflex transfer functions obtained from open-loop analysis, the predictability of time-series output dynamics from input signals, which should confirm the accuracy of system identification, remains to be elucidated. Moreover, despite theoretical concerns over closed-loop system identification, the accuracy ...
Wu Chueh-Yu - - 2011
This paper reports a novel pressure sensor with an electrical readout based on electrofluidic circuits constructed by ionic liquid (IL)-filled microfluidic channels. The developed pressure sensor can be seamlessly fabricated into polydimethylsiloxane (PDMS) microfluidic systems using the well-developed multilayer soft lithography (MSL) technique without additional assembly or sophisticated cleanroom microfabrication ...
Chatterjee Arya - - 2011
Using the disjoining pressure concept in a seminal paper, Derjaguin, Nerpin and Churaev demonstrated that isothermal liquid flow in a very thin film on the walls of a capillary tube enhances the rate of evaporation of moisture by several times. The objective of this review is to present the evolution ...
Ghai Gaurav - - 2011
Traditional metal cans and glass jars have been the mainstay in thermally processed canned foods for more than a century, but are now sharing shelf space with increasingly popular flexible pouches and semi-rigid trays. These flexible packages lack the strength of metal cans and glass jars, and need greater control ...
Cardoso Inês - - 2011
The importance of establishing the ecological quality of estuarine systems has been widely acknowledged and led to the development of several fish community-based multimetric indices. Nevertheless, a question rose about the accuracy of these tools when natural disturbance is acting upon the organization of the systems' communities. Four multimetric indices ...
Bernhard Andreas M - - 2011
Aqueous urea solution is widely used as reducing agent in the selective catalytic reduction of NO(x) (SCR). Because reports of urea vapor at atmospheric pressure are rare, gaseous urea is usually neglected in computational models used for designing SCR systems. In this study, urea evaporation was investigated under flow reactor ...
Shi Wei - - 2011
Significant progress in the development of implantable ventricular assist devices using continuous-flow blood pumps has been made recently. However, a control method has not been established. The blood pressure in the inflow cannula (inlet pressure) is one of the candidates for performing an adequate control. This could also provide important ...
Stouby Anna - - 2011
Prolonged air leakage is common after lung resection. We observed that during deep inspiration some patients were able to empty the water-seal of commercial chest drainage systems and retract air back into the chest tube, which subsequently escaped during the following expiration, mimicking "true" air leakage. This led us to ...
Choi In-Mook - - 2011
It is becoming more important to measure the pressure in high temperature environments in many industrial fields. However, there is no appropriate evaluation system and compensation method for high temperature pressure sensors since most pressure standards have been established at room temperature. In order to evaluate the high temperature pressure ...
Al Khaburi J - - 2011
Multi-component medical compression bandages are widely used to treat venous leg ulcers. The sub-bandage interface pressures induced by individual components of the multi-component compression bandage systems are not always simply additive. Current models to explain compression bandage performance do not take account of the increase in leg circumference when each ...
Neuman Michael - - 2011
Blood pressure is the last of the four physiologic variables known as clinical vital signs that we will consider in this tutorial series. In essence, pressure and heart rate are the two vital signs that evaluate the cardiovascular system. Although pressure is important throughout the cardiovascular system, the vital sign ...
Kim Moon Young - - 2011
Further histological subclassification of cirrhosis may be useful because of heterogeneity of severity within cirrhosis. We aimed to determine the relationship between histological subclassification and clinical stage of cirrhosis as well as grade of portal hypertension. One hundred-twenty-three biopsy-proven cirrhosis patients, whose clinical stage of cirrhosis and hepatic venous pressure ...
Maroni Beatrice - - 2011
The effect of chemical and hydrostatic pressure has been studied systematically in a selected system belonging to the 1111 family of iron pnictide high-temperature superconductors. The results show a surprising similarity between the trend of critical temperature vs hydrostatic pressure for isoelectronic samples with different rare earths (RE) on the ...
Shiry L J - - 2011
INTRODUCTION: The high pressure baroreceptor reflex rapidly buffers changes in systemic arterial pressure in response to postural changes, altered gravitational conditions, diseases, and pharmacological agents. Drug-induced exaggeration of changes in heart rate and in systemic arterial pressure is a leading cause of adverse events and of patients terminating use of ...
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