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Hu Minyi M Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY - - 2014
Interstitial bone fluid flow (IBFF) is suggested as a communication media that bridges external physical signals and internal cellular activities in the bone, which thus regulates bone remodeling. Intramedullary pressure (ImP) is one main regulatory factor of IBFF and bone adaptation related mechanotransduction. Our group has recently observed that dynamic ...
Schubbert A A Friedrich-Loeffler-Institut, Institute of Animal Welfare and Animal Husbandry, Doernbergstrasse 25/27, 29223 Celle, - - 2014
Rubber mats offer a possibility to increase lying comfort for sows with positive effects on sows lying behavior and health. However, until now there is no information about the relationship between softness of rubber mats and pressure load on certain body areas of sows. We used a total of 68 ...
Efrati Shai S Research and Development Unit, Assaf Harofeh Medical Center, Affiliated with the Sackler School of Medicine, Tel-Aviv University, 70300, Zerifin, Israel, - - 2014
Early detection of accidental endobronchial intubation (EBI) is still an unsolved problem in anesthesia and critical care daily practice. The aim of this study was to evaluate the ability of monitoring above cuff CO2 to detect EBI (the working hypothesis was that the origin of CO2 is from the unventilated, ...
Spapen Herbert H Intensive Care Department, University Hospital, Vrije Universiteit Brussels, Laarbeeklaan, 101, 1090, Brussels, Belgium, - - 2014
Within continuously controlled limits of cuff pressure, an endotracheal tube cuff made of polyurethane (PU) prevents secretion inflow better than a conventional polyvinylchloride cuff. However, the temperature difference between ventilator gas and the air inside a PU cuff produces condensation droplets that accumulate in the cuff inflation canal. We investigated ...
Xiao Jianwei J State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, - - 2014
Phase stability limit of cubic boron nitride (c-BN) has been investigated by the crystal structure search technique. It indicated that this limit is ∼1000 GPa at hydrostatic pressure condition. Above this pressure, c-BN turns into a metastable phase with respect to rocksalt type boron nitride (rs-BN). However, rs-BN cannot be ...
Zheng Dingchang D Cardiovascular Physics and Engineering Research Group, Institute of Cellular Medicine, Newcastle University, Newcastle, NE2 4HH, UK, - - 2014
Blood pressure (BP) measurement accuracy depends on consistent changes in Korotkoff sounds (KorS) for manual measurement and oscillometric pulses for automated measurement, yet little is known about the direct effect of respiration on these physiological signals. The aim of this research was to quantitatively assess the modulation effect of respiration ...
Beaugerie Aurélien A Department of Urology, Pitié-Salpétrière academic hospital, Pierre et Marie Curie University (Paris VI), Paris, - - 2014
Some patients fitted with an AMS800®-type artificial urinary sphincter report urinary leaks in the sitting position, which mechanism remains unclear. This experimental study tries to explain these residual leaks by characterizing fluid transfers and pressure variations within the device during cuff compression. Two complete sets of AMS800® devices were tested ...
Jagannath M M Rehabilitation Bioengineering Group, Department of Engineering Design, Indian Institute of Technology Madras, Chennai 600036, India; Department of Biomedical Engineering, SMK Fomra Institute of Technology, Chennai 603103, - - 2014
Driver fatigue is an important contributor to road accidents. This paper reports a study that evaluated driver fatigue using multimodal fatigue measures, i.e., surface electromyography (sEMG), electroencephalography (EEG), seat interface pressure, blood pressure, heart rate and oxygen saturation level. Twenty male participants volunteered in this study by performing 60 min of ...
Fok Henry H King's College London, British Heart Foundation Centre, London, United - - 2014
Augmentation pressure (AP), the increment in aortic pressure above its first systolic shoulder, is thought to be determined mainly by pressure wave reflection but could be influenced by ventricular ejection characteristics. We sought to determine the mechanism by which AP is selectively reduced by nitroglycerin (NTG). Simultaneous measurements of aortic ...
Adepalli Kiran Kumar KK Max Planck Institute for Solid State Research, Heisenbergstr. 1, D-70569 Stuttgart, Germany. r.merkle@fkf.mpg.de - - 2014
The influence of line defects (dislocations) on the electrical properties of polycrystalline TiO2 was investigated. Line defects were created in TiO2 during spark plasma sintering at 1000 °C and 400 MPa. TEM characterisation indicates dislocations to be preferably oriented on {110} and {101} planes. The measured electrical conductivity as a ...
Zhu Richard R Department of Anesthesiology, Yale University School of Medicine, 333 Cedar Street, P.O. Box 208051, New Haven, CT, 06520-8051, - - 2014
During shoulder surgery, patients typically are placed in the beach chair position. In rare cases, this positioning has resulted in devastating outcomes of postoperative cerebral ischemia (Cullen and Kirby in APSF Newsl 22(2):25-27, 2007; Munis in APSF Newsl 22(4):82-83, 2008). This study presents a method to noninvasively and continuously hemodynamically ...
Silva Sandra Regina Ramos SR Universidade Mogi das Cruzes, São PauloSP, Brazil, MSc, Professor, Universidade Mogi das Cruzes, São Paulo, SP, - - 2014
to identify, in 2011, rates of hypertension, cardiovascular and gestational problems in subjects presenting high blood pressure in 1982, when correct cuff size was used, according to the American Heart Association Arm Circumference/Cuff Width ratio of 0.40. high blood pressure was defined in 2011 as systolic = 115 mmHg and ...
Park Chloe M CM aInternational Centre for Circulatory Health, Imperial College London & Imperial College Healthcare NHS Trust bDepartment of Bioengineering, Imperial College London, London, - - 2013
Aortic (central) blood pressure (BP) differs from brachial BP and may be a superior predictor of cardiovascular events. However, its measurement is currently restricted to research settings, owing to a moderate level of operator dependency. We tested a new noninvasive device in a large UK cohort. The device estimates central ...
Raab A M - - 2013
Study design:Randomized, within-in participant cross-over study.Objective:The purpose of this study was to determine the effect on comfort and pressure of lying with the shoulders and bed in different positions for people with tetraplegia.Setting:Rehabilitation hospital.Methods:Twenty people with tetraplegia were tested lying supine with the shoulders and bed in seven different positions. ...
Grant Thomas T Royal Bournemouth Hospital. - - 2013
Inflation and measurement of endotracheal (ET) tube cuff pressure is often not seen as a critical aspect of care in surgical patients. The morbidity associated by an overinflated cuff has been regularly highlighted in literature, for example mucosal ulceration (Combes et al 2001) and vocal cord paralysis (Holley & Gildea ...
Hersh Lawrence T - - 2013
There has been a growing need for and interest in measuring noninvasive blood pressure (NIBP) in obese patients. In many situations, available rectangular upper arm blood pressure cuffs do not fit properly, closing in a crisscross manner or overlapping the elbow. To address this issue, GE Healthcare has designed a ...
Zeng Wei-Fang - - 2013
The present study aimed to evaluate the accuracy of the automated oscillometric upper-arm blood pressure monitor A&D UA-1020 with six different-shaped or different-sized cuffs according to the British Hypertension Society protocol. We recruited 136 individuals for four D-ring cuffs (adult, large, small, and medium) and 114 individuals for two cylindrical ...
Okuno Daichi - - 2013
F1-ATPase is the water-soluble part of ATP synthase and is an ATP-driven rotary molecular motor that rotates the rotary shaft against the surrounding stator ring, hydrolyzing ATP. Although the mechanochemical coupling mechanism of F1-ATPase has been well studied, the molecular details of individual reaction steps remain unclear. In this study, ...
Zheng Dingchang D Institute of Cellular Medicine, Newcastle University, Royal Victoria Infirmary, Newcastle upon Tyne, UK. - - 2013
The aim of this study was to investigate the effect of different mechanical behaviour of the brachial artery on blood pressure (BP) measurements during cuff inflation and deflation. BP measurements were taken from each of 40 participants, with three repeat sessions under three randomized cuff deflation/inflation conditions. Cuff pressure was ...
Starck Christoph T - - 2013
Based on a ferromagnetic silicone cuff for extra-aortic counterpulsation, a new assist device concept was developed. The driving force is generated by an external magnetic field, which leads to contraction of a soft magnetic cuff. The force generation capacity of the device was tested in a silicone aorta model. Magnetic ...
Wohlfahrt Peter - - 2013
Central systolic blood pressure (cSBP) can be derived by the general transfer function of the radial pressure wave, as used in the SphygmoCor device, or by regression equation from directly measured late systolic shoulder of the radial pressure wave (pSBP2), as used in the Omron HEM-9000AI device. The aim of ...
Grant Thomas - - 2013
Inflation and measurement of endotracheal (ET) tube cuff pressure is often not seen as a critical aspect of care in surgical patients. The morbidity associated by an overinflated cuff has been regularly highlighted in literature, for example mucosal ulceration (Combes et al 2001) and vocal cord paralysis (Holley & Gildea ...
Miyashita Hiroshi - - 2013
In hypertension clinics, central blood pressure (CBP) should be estimated, instead of directly measured, by the "signal processing" of a noninvasive peripheral pressure waveform. This paper deals with the data obtained in our three separate studies focusing on a major estimation method, i.e., radial artery late systolic shoulder pressure (rSBP2)-based ...
Zheng Yali - - 2013
A wearable cuff-less pulse transit time (PTT) based monitoring device is developed for ambulatory blood pressure (BP) monitoring. Ten healthy subjects (aged 27±4 years old) underwent 24-hour ambulatory BP monitoring using 1) a standard brachial cuff-based oscillometric device as reference and 2) the proposed cuff-less PTT measuring system. Raw PTT ...
Devinck A - - 2013
To compare current practice of cuff size selection for non-invasive blood pressure measurement in a single centre tertiary level neonatal intensive care unit (visual assessment of bladder width/limb length closest to 2/3) with common recommendations for appropriate cuff selection. Visual assessment of the appropriate cuff size ('2/3 rule') for upper ...
Gladczak A K - - 2013
The gold standard for blood pressure measurement in pigs is direct monitoring of arterial pressure, but this is an invasive technique adding complexity to surgical procedures. We sought to compare direct measurements obtained via catheterization to more easily-obtained indirect measurements using a sphygmomanometer with an automated cuff. Simultaneous measurements via ...
Kim Sung-Jae - - 2013
To compare pressurized footprint contact and interface pressure between the biceps-labrum complex and the superior glenoid rim after SLAP repair using 3 different techniques. Twenty-four fresh-frozen human cadaveric shoulders were divided into 3 groups. SLAP lesions were repaired by (1) 2 single-loaded anchors in a simple suture configuration (group T), ...
Mourad Jean-Jacques - - 2013
BACKGROUND: Masked hypertension has been associated with obesity. However, because most studies do not mention the specific cuff size used for home measurements, masked hypertension prevalence may have been overestimated in obese patients because of undersized cuffs. In this prospective, observational study, the effect of miscuffing on hypertension status was ...
Forthomme Damien - - 2013
Selected isolated rotational transitions in the 1-0 band of the red A 2Π - X 2Σ+ system in CN have been recorded with transient frequency modulation spectroscopy as a function of argon pressure up to 0.2 atmospheres at room temperature. Line shapes were fit using Fourier transforms of a parameterized ...
Suozzi Brent A - - 2013
OBJECTIVE: To evaluate the pressure placed on the shoulders as a function of varying degrees of head-down tilt (Trendelenburg) and to compare these pressures among three different patient-positioning systems. Study Design: Participants were placed in the dorsal-lithotomy position with arms tucked and tilted at 5, 10, 15, 20, 25, and ...
Matsuo M - - 2013
BACKGROUND: Although blood pressure cuffs are commonly used and shared in medical facilities, their routine disinfection is performed infrequently. AIMS: We investigated the contamination of blood pressure cuffs by methicillin-resistant Staphylococcus aureus (MRSA). METHODS: The MRSA level on the inner side (the surface in contact with patients' skin) of blood ...
Wall Piper L - - 2013
Nerve injuries result from tourniquet pressure. The objective was to determine arterial occlusion and completion pressures with the 3.8-cm-wide windlass Combat Application Tourniquet (CAT) and the 10.4-cm-wide Stretch, Wrap, and Tuck Tourniquet (SWAT-T). Sixteen volunteers self-applied and had tourniquets applied to their thighs and arms (CAT and SWAT-T, random order, ...
Maboudi Aptin A Department of Pulmonary and Critical Care Medicine, Imam Khomeini Medical Center, Tehran University of Medical Sciences, and Thoracic Diagnostic and Therapeutic Research Center, Tehran University of Medical Sciences, Tehran, IR - - 2013
Untrained fingertip palpation has been shown to be unable to adjust endotracheal tube (ET) cuff pressure in most intubated patients. We determined the impact of a training course of ETT cuff adjustment by palpation in attaining a safe cuff inflation pressure. Twenty-five nurses were asked to adjust the ETT cuff ...
Park Se-Yeon - - 2013
Objective: The aim of this study was to investigate the effects of sustained computer keyboard typing on the human musculoskeletal system by assessing the pressure-pain threshold (PPT), scapular position and activation of the upper trapezius. Methods: Vertical and horizontal positional changes of the scapular were measured with a palpation meter ...
Zeng Wei-Fang - - 2013
OBJECTIVE: The present study aimed to evaluate the accuracy of the automated oscillometric upper-arm blood pressure (BP) monitor A&D UA-1020 with two different-shaped cuffs for home BP monitoring according to the British Hypertension Society (BHS) Protocol. METHODS: We recruited individuals for each of the two cuffs (D-ring and cylindrical) until ...
Johar Pramod - - 2013
Although previous studies have demonstrated neuromuscular and cardiovascular changes with slow inversion rates, emergencies, such as overturned vehicles and helicopters can occur rapidly. The purpose of this study was to investigate changes in neuromuscular and cardiovascular responses with rapid (1 s) and slower (3 s) transitions from upright to inverted seated positions. ...
van Gelein Vitringa Valerie M - - 2013
BACKGROUND: The Hueter-Volkmann law describes growth principles around joints and joint deformation. It states that decreased stress leads to increased growth and that excessive stress leads to growth retardation. Aim of this study was to test the possible results of this principle by measuring the effect of dorsal humeral head ...
Casali R A - - 2013
The pressure dependences of the structural, thermoelastic and vibrational properties of SnO2 in its rutile phase are studied, as well as the pressure-induced transition to a CaCl2-type phase. These studies have been performed by means of ab initio (AI) density functional theory calculations using the localized basis code SIESTA. The results ...
Loenneke Jeremy P - - 2013
Blood flow restriction (BFR) by itself or in combination with exercise has been shown to be beneficial for skeletal muscle. Despite most of the literature showing positive effects of BFR on skeletal muscle, not all studies show a benefit of BFR exercise compared with exercise without BFR. Some of the ...
Nishiyama Masayoshi - - 2013
The bacterial flagellar motor is a reversible rotary machine that rotates a left-handed helical filament, allowing bacteria to swim toward a more favorable environment. The direction of rotation reverses from counterclockwise (CCW) to clockwise (CW), and vice versa, in response to input from the chemotaxis signaling circuit. CW rotation is ...
Tsuboi Sayaka - - 2013
BACKGROUND:Studies have compared sealing effects of the newly developed tapered endotracheal tube cuff with the conventional cylindrical cuff. In this study, we compared the difference between cuffs with regard to the increase in intracuff pressure during nitrous oxide (N(2)O) exposure.METHODS:Two types of cuffs were studied using a model trachea connected ...
Mugridge Jeffrey S - - 2013
The supramolecular host assembly [Ga(4)L(6)](12-) (1; L = 1,5-bis[2,3-dihydroxybenzamido]naphthalene) contains a flexible, hydrophobic interior cavity that can encapsulate cationic guest molecules and catalyze a variety of chemical transformations. The Ph-CH2 bond rotational barrier for encapsulated ortho-substituted benzyl phosphonium guest molecules is sensitive to the size and shape of the host ...
McBrayer Daniel E - - 2013
The purpose of this study was to investigate deltoid compartment pressures during arthroscopic rotator cuff repair using modern pressure pumps to achieve visualization.Twelve patients undergoing arthroscopic rotator cuff repairs were monitored for deltoid compartment pressure changes intraoperatively. Pre-, intra-, and postoperative intramuscular pressures were recorded. All patients demonstrated varying degrees ...
Gruevski Kristina M - - 2013
The introduction of mobile computing within a constrained vehicle environment has led to changes in the task demands of occupational groups such as professional drivers and law enforcement officers. The purpose of this study was to examine how mobile data terminal (MDT) use interacts with prolonged driving to induce postural ...
Nitzan Meir - - 2013
In the current study, a non-invasive technique for systolic blood pressure (SBP) measurement based on the detection of photoplethysmographic (PPG) pulses during pressure-cuff deflation was compared to sphygmomanometry-the Korotkoff sounds technique. The PPG pulses disappear for cuff-pressures above the SBP value and reappear when the cuff-pressure decreases below the SBP ...
Bowles Kelly-Ann - - 2012
PURPOSE: This study aimed to quantify bra shoulder strap pressures and to investigate how bra strap cushions moderated this pressure and resultant comfort; and to investigate the effects of variations in bra shoulder strap configuration on vertical breast motion, breast discomfort, shoulder pressures and comfort. METHODS: Fourteen healthy females (C+ ...
Brendt Peter - - 2012
Abstract Background. Increased endotracheal tube (ETT) cuff pressure is associated with compromised tracheal mucosal perfusion and injuries. No published data are available for Australia on pressures in the fixed-wing air medical retrieval setting. Objective. After introduction of a cuff pressure manometer (Mallinckrodt, Hennef, Germany) at the Royal Flying Doctor Service ...
Chen Bin - - 2012
The size of nanocrystals provides a limitation on dislocation activity and associated stress-induced deformation. Dislocation-mediated plastic deformation is expected to become inactive below a critical particle size, which has been proposed to be between 10 and 30 nanometers according to computer simulations and transmission electron microscopy analysis. However, deformation experiments ...
Yeung David K W - - 2012
PURPOSE: To investigate whether compressed air during air-cuff inflation in vascular reactivity studies could induce aberrant blood oxygenation level-dependent (BOLD) signal change. MATERIALS AND METHODS: Magnetic resonance imaging (MRI) experiments were performed on a whole-body 3 T scanner. The pattern of T2* signal change measured from a phantom simulating the ...
Al-Jumaily A M - - 2012
Theoretically the auscultatory method using Korotkoff sounds is more related to the maximum artery closure status, while the oscillometric method is more related to the overall artery closure status under the cuff. Therefore, the latter is less accurate than the former. This work introduces a new method, which is more ...
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