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Huang Dong - - 2013
Pressure therapy improves hypertrophic scar healing, but the mechanisms for this process are not well understood. We sought to investigate the differential expression of matrix metalloproteinases (Mmps) and collagen in posttraumatic hypertrophic scar tissue with mechanical pressure and delineate the molecular mechanisms of pressure therapy for hypertrophic scars. Fibroblast lines ...
Yuan Jin-Peng - - 2013
We present a simple, reliable, and nondestructive method for the measurement of vacuum pressure in a magneto-optical trap. The vacuum pressure is verified to be proportional to the collision rate constant between cold atoms and the background gas with a coefficient k, which can be calculated by means of the ...
Ide Yusuke - - 2013
A layered silicate co-modified with amino and octadecyl groups exhibited efficient and very selective adsorption for CO2 over N2 and H2O at ambient pressure and temperature.
Heath Jason E - - 2013
CO2 storage efficiency is a metric that expresses the portion of the pore space of a subsurface geologic formation that is available to store CO2. Estimates of storage efficiency for large-scale geologic CO2 storage depend on a variety of factors including geologic properties and operational design. These factors govern estimates ...
Vajda Péter - - 2013
The excess adsorption isotherm of ethanol from liquid carbon dioxide on a silicagel column was determined in a range of back pressures and temperatures. The retention patterns of minor disturbance peaks were mapped and their dependences on the applied back pressure and column temperature measured. The analysis of the linear ...
Li Yanqiang - - 2013
The carbonized PAF-1 derivatives formed by high-temperature KOH activation showed a unique bimodal microporous structure located at 0.6 nm and 1.2 nm and high surface area. These robust micropores were confirmed by nitrogen sorption experiment and high-resolution transmission electron microscopy (TEM). Carbon dioxide, methane and hydrogen sorption experiments indicated that these novel ...
Yang Mingjun - - 2013
The purpose of this study was to investigate the hydrate formation and dissociation as CO2 flowing through cooled porous media at different flow rates, pressures, temperatures and flow directions. CO2 hydrate saturation was quantified using the mean intensity of water. The experimental results showed that hydrate block appeared frequently, and ...
Niezgoda George - - 2013
Twenty subjects underwent quantitative respirator fit testing with two styles (flat fold, cup-shaped) of N95 filtering facepiece respirators (N95 FFRs). Passing a fit test was followed by stereophotogrammetry to determine the face seal area and computation of seal pressure. There were significantly different seal pressures (p < 0.01) between standard ...
Yoo Won-Gyu WG Department of Physical Therapy, College of Biomedical Science and Engineering, Inje University and Elderly Life Redesign - - 2013
[Purpose] This study investigated the changes in pressure pain threshold of the upper trapezius, levator scapular, and rhomboid muscles during continuous computer work. [Subjects] Fourteen males and females aged 26-32 years, were recruited. [Methods] A dolorimeter pressure algometer was used to measure the pressure pain threshold of the upper trapezius, levator ...
Straka Lubomir - - 2013
A 29-year-old man was found dead lying on the bed in a hotel room in a famous Slovak mountain resort. He had a full-face diving mask on his face, connected through a diving breath regulator to a valve of an industrial (nondiving) high-pressure tank containing pure 100% nitrogen. The breath ...
Vogt Monika - - 2013
Capture me! The first report of a N-heterocyclic carbene (NHC) as a solid-state carbon capture reagent is presented. Experimental and theoretical measurements demonstrate the ability of the NHC to react rapidly and stoichiometrically with CO2 at low partial pressures.
Cheng Xin - - 2013
Nonlinear scattering, originating from laser induced solvent micro-bubbles and/or micro-plasmas, is regarded as the principal mechanism for nonlinear optical (NLO) response of graphene dispersions at ns timescale. In this work, we report the significant enhancement of NLO response of graphene dispersions by decreasing the atmospheric pressure, which has strong influence ...
Lee Wonsup - - 2013
This study measured the facial dimensions of Korean Air Force (KAF) pilots, to design a pilot oxygen mask, and compared them with those of Korean civilians and US Air Force (USAF) personnel. Twenty-two facial dimensions were measured for 278 KAF male pilots (KMP) and 58 KAF female pilots and cadets ...
Hartgill T W TW Department of Obstetrics and Gynaecology, Oslo University Hospital , Oslo , Norway - - 2013
Investigate blood pressure response to acral skin vasoconstriction in healthy and pre-eclamptic pregnancies. Healthy women were investigated from gestational week 8 to 52 weeks postpartum and pre-eclampsia subjects at diagnosis. Finger artery ultrasound Doppler, forearm laser Doppler fluximetry and photoplethysmographic blood pressure were recorded. Hand cooling to 19 °C induced vasoconstriction. ...
Martin Derek - - 2013
A number of bioengineering techniques are being developed using microbially catalyzed hydrolysis of urea to precipitate calcium carbonate for soil and sand strengthening in the subsurface. In this study, we evaluate denitrification as an alternative microbial metabolism to induce carbonate precipitation for bioengineering under anaerobic conditions and at high pressure. ...
Grenier Etienne - - 2013
This paper presents a preliminary study to demonstrate the instantaneous local effect of compression stocking (Class 2) on skin microcirculatory activity. The measurement needs to be carefully performed as the sensor is placed under the garment. To assess the local effect of compression stockings, we use the ambulatory device Hematron ...
Abdollahi Zahra - - 2013
This study presents evaluation of a system combining laser Doppler flowmetry and photoplethysmography (PPG) in a single probe for the simultaneous measurement of perfusion and blood flow in the finger. A cuff sphygmomanometer was used to partially occlude the arteries supplying the hand to investigate the effect of low pressure ...
Gu Tingyue T Department of Chemical and Biomolecular Engineering, Ohio University, Athens, OH 45701, USA. - - 2013
Owing to high petroleum prices, there has been a major push in recent years to use lignocellulosic biomass as biorefinery feedstocks. Unfortunately, by nature's design, lignocellulosic biomass is notoriously recalcitrant. Cellulose is the most abundant renewable carbon source on the planet and comprises glucan polysaccharides which self-assemble into paracrystalline microfibrils. ...
Hu Yue - - 2013
Due to the large porosity and unique framework stability, ZIF-8, a representative zeolitic imidazolate based member of metal-organic framework (MOF) family exhibited excellent adsorption capacities for a wide range of gases, including greenhouse gases. Using in situ FTIR spectroscopy, ZIF-8 framework was investigated when loaded with CO2 in a diamond ...
Wiig Helge H Department of Biomedicine, University of Bergen, Bergen, - - 2013
The skin interstitium sequesters excess Na+ and Cl- in salt-sensitive hypertension. Mononuclear phagocyte system (MPS) cells are recruited to the skin, sense the hypertonic electrolyte accumulation in skin, and activate the tonicity-responsive enhancer-binding protein (TONEBP, also known as NFAT5) to initiate expression and secretion of VEGFC, which enhances electrolyte clearance ...
Khamaganov V G - - 2013
The quantum yield of formation of CH3 and CH3CO in the pulsed laser photo-excitation of acetone at 300 and 308 nm was investigated at several pressures (60 to 740 Torr) and at either 298 or 228 K. The organic radicals generated were monitored indirectly following conversion (by reaction with Br2) ...
Lai Lin - - 2013
The use of carbon nanostructures to capture and store waste carbon, such as methane and carbon dioxide, is intrinsically attractive, particularly if the same molecules can be subsequently used as synthetic precursors. However, to facilitate adsorption of these highly stable species high pressures are required, and fragile carbon-based nanostructures may ...
Lindeboom Ralph E F - - 2013
Autogenerative High Pressure Digestion (AHPD) is a novel concept that integrates gas upgrading with anaerobic digestion by selective dissolution of CO2 at elevated biogas pressure. However, accumulation of CO2 and fatty acids after anaerobic digestion of glucose resulted in pH 3-5, which is incompatible with the commonly applied high-rate methanogenic ...
Maroušek Josef - - 2013
The pretreatment methods for enhancing biogas production from oat straw under study include hot maceration, steam explosion, and pressure shockwaves. The micropore area (9, 55, and 64 m(2) g(-1)) inhibitor formations (0, 15, and 0 mL L(-1)) as well as the overall methane yields (67, 179, and 255 CH4 VS t(-1)) were robustly analyzed. ...
Phillips Lara L Vanderbilt Eye Institute, Vanderbilt University, Nashville, TN 37232, - - 2013
To report the ophthalmic findings in young patients with dopamine β-hydroxylase deficiency and to assess them in the context of other reports in an attempt to discern if ophthalmic criteria may assist in early detection of this debilitating, yet treatable, disorder. Prospective, observational case series. An ophthalmic examination, including measuring ...
Brogden Nicole K NK University of Kentucky College of Pharmacy, Department of Pharmaceutical Sciences, Lexington, Kentucky, - - 2013
Microneedles (MNs) provide a minimally invasive means to enhance skin permeability by creating micron-scale channels (micropores) that provide a drug delivery pathway. Adequate formation of the micropores is critical to the success of this unique drug delivery technique. The objective of the current work was to develop sensitive and reproducible ...
Salter Robert J - - 2013
The photolysis of glyoxal has been investigated in the 355-414 nm region by dye laser photolysis coupled with cavity ring-down spectroscopy. Absolute quantum yields of HCO, ΦHCO, were determined using the reaction of chlorine atoms with formaldehyde as an actinometer. The dependence of the quantum yield on pressure was investigated ...
Tomasino Dane - - 2013
We have studied the pressure-induced physical and chemical transformations of tetracyanoethylene (TCNE or C6N4) in diamond anvil cells using micro-Raman spectroscopy, laser-heating, emission spectroscopy, and synchrotron x-ray diffraction. The results indicate that TCNE in a quasi-hydrostatic condition undergoes a shear-induced phase transition at 10 GPa and then a chemical change ...
Bleier Benjamin S - - 2013
Endoscopic reconstruction of skull base defects remains a challenge. Laser tissue welding (LTW) is a technique in which a laser-activated solder is used to create instantaneous repairs of skull base defects with burst strengths far exceeding intracranial pressure (ICP). This study was designed to define the thermal and inflammatory profile ...
Sode Olaseni O Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, - - 2013
The symmetric-stretching fundamental (ν1) and the bending first overtone (2ν2) of CO2, which are accidentally degenerate with the same symmetry, undergo a Fermi resonance and give rise to two Raman bands with a frequency difference of 107 cm(-1) and an intensity ratio of 2.1. Both the frequency difference and intensity ...
Lee Myunggu - - 2013
Enzymatic synthesis of biodiesel by the transesterification of canola oil and methanol in high pressure carbon dioxide [HPCO(2): near-critical and supercritical carbon dioxide (NcCO(2) and ScCO(2))] was optimized using response surface methodology (RSM). RSM based on 5-level-5-factor central composite rotatable design (CCRD) was used to evaluate the effects of temperature, ...
Pagitz M - - 2013
Plants such as Dionaea muscipula (Venus Flytrap) can change the shape of their shell-like leaves by actively altering the cell pressures. These leaves are hydraulic actuators that do not require any complex controls and that possess an energy efficiency that is unmatched by natural or artificial muscles (Huber et al ...
Chen Dawei - - 2013
In order to illustrate the underlining mechanism of the effect of high pressure on lipases from different resources, the influence of compressed carbon dioxide treatment on the esterification activities and conformation of the three lipases Candida rugosa lipase (CRL), Pseudomonas fluorescens lipase, and Rhizopus oryzae lipase was investigated in the ...
Cheng X - - 2013
We developed a system with high levels of dissolved CO2 for water disinfection. Bacteriophages MS2, Qbeta and phiX174 were selected as the inactivation targets. A relatively mild inactivation effect was observed on MS2 and Qbeta at different initial concentrations of dissolved CO2 at 0.3 MPa in 20-30 min. When the ...
Likar Jakob - - 2013
The problem of reducing CO2 emissions in the atmosphere is indirectly related to the potential storage options in different environments in the earth's crust. One of the promising possibilities for reducing emissions of carbon dioxide (CO2) into the atmosphere is the geological storage of CO2 in deep, unminable coal seams. ...
Ohtomo Yoko Y Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology (JAMSTEC) Kochi, - - 2013
Geological CO2 sequestration in unmineable subsurface oil/gas fields and coal formations has been proposed as a means of reducing anthropogenic greenhouse gasses in the atmosphere. However, the feasibility of injecting CO2 into subsurface depends upon a variety of geological and economic conditions, and the ecological consequences are largely unpredictable. In ...
Beattie Christopher - - 2012
The effect of moderate temperatures (22-100 degC) and pressures (1-10 bar) on the synthesis of cyclic carbonates from epoxides and carbon dioxide catalyzed by a combination of bimetallic aluminum complexes and tetrabutylammonium bromide is investigated. The combined bimetallic complex and tetrabutylammonium bromide catalyst system is shown to be an order ...
Paredes Angel - - 2012
We show that extreme vacuum pressures can be measured with current technology by detecting the photons produced by the relativistic Thomson scattering of ultraintense laser light by the electrons of the medium. We compute the amount of radiation scattered at different frequencies and angles when a Gaussian laser pulse crosses ...
Pham Trong - - 2012
Samples of high-silica SSZ-13, ion exchanged with protons and alkali-metal cations Li+, Na+, and K+ were investigated using adsorption isotherms of CO2 and N2. The results show that Li-, Na-SSZ-13 have excellent CO2 capacity at ambient temperature and pressure; in general, Li-SSZ-13 shows the highest capacity for N2, CO2 particularly ...
El Dib Gisele - - 2012
The reaction of the OH radicals with 4-hydroxy 2-butanone was investigated in the gas-phase using an absolute rate method at room temperature and over the pressure of 10 to 330 Torr in He and air as diluent gases. The rate coefficients were measured using pulsed laser photolysis (PLP) of H2O2 ...
Song Chun Feng - - 2012
CO2 capture and storage (CCS) is an important alternative to control greenhouse gas (GHG) effects. In previous work, a novel desublimation CO2 capture process has been exploited making use of three free piston Stirling coolers (namely, SC-1, SC-2 and SC-3, respectively). Based on the developed system, moisture and CO2 in ...
Simmons Rita G - - 2012
Effective hypoxia-related mishap prevention relies upon aircrew rapid recognition of hypoxia symptoms. The objectives of this experiment were twofold: to compare the effectiveness of a forehead-mounted reflectance oximeter and finger-mounted pulse oximeter for application in a hypoxia early warning detection system, and to determine whether the forehead-mounted sensor could be ...
Kashima Hideaki - - 2012
We have previously reported the unique regional responses of facial skin blood flow (SkBF) to oral application of the basic tastes without simultaneous systemic circulatory changes. In the present study, we determined whether a systemic circulatory challenge due to sympathetic activation induces regional differences in facial SkBF by observing the ...
Jan Yih-Kuen - - 2012
The objectives of this study were to investigate the effects of local cooling on skin blood flow response to prolonged surface pressure and to identify associated physiological controls mediating these responses using the wavelet analysis of blood flow oscillations in rats. Twelve Sprague-Dawley rats were randomly assigned to three protocols, ...
Kupenko Ilya - - 2012
The effect of static compression up to 65 GPa at ambient temperature on ammonia borane, BH(3)NH(3), has been investigated using in situ Raman spectroscopy in a diamond anvil cells. Two phase transitions were observed at approximately 12 GPa and previously not reported transition at 27 GPa. It was demonstrated that ...
Carey Robert M - - 2012
Primary aldosteronism is the most common form of secondary hypertension. Case detection is based on an abnormal plasma aldosterone:plasma renin activity ratio and the diagnosis must be confirmed with an aldosterone suppression test. Subtype differentiation should be performed using adrenal venous sampling. Approximately 50% of patients with primary aldosteronism will ...
Makówka Agnieszka - - 2012
Most hypertensive dialysis patients are currently treated with angiotensin converting enzyme inhibitors (ACEI) and angiotensin receptor blockers (ARB). Aliskiren, the direct renin inhibitor, has not been specifically studied in peritoneal dialysis patients. The aim of the study was to compare hypotensive effects of aliskiren and ramipril and their influence on ...
Petrou Panayota - - 2012
The use of a ventriculoperitoneal (VP) shunt to treat uncontrollable intracranial hypertension in patients with cryptococcal meningitis without hydrocephalus is somewhat unusual and still largely unreported. However, uncontrollable intracranial hypertension without hydrocephalus in these patients is a potentially life-threatening condition. Early diagnosis and shunt placement are essential to improve survival ...
Fülöp Tibor - - 2012
Aims: End-stage renal disease (ESRD) patients on dialysis are perceived tohave difficult-to-control blood pressure (BP) and commonly treated with complex antihypertensive regimens. Our hypothesis was that peri-dialysis BP will overestimate the true burden of hypertension in these patients. Subjects and methods: We performed 44-h ambulatory blood pressure monitoring (ABPM) in ...
Bai Qiong - - 2012
Human urotensin II (hUII) is a newly discovered substance that can dilate small blood vessels to decrease the blood pressure (BP). Our previous studies showed that some volume-overloaded patients on peritoneal dialysis can maintain normal BP (congestive heart failure excluded), suggesting that these patients have volume resistance capacity. This study ...
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