Search Results
Results 451 - 500 of 3179
< 5 6 7 8 9 10 11 12 13 14 15 >
Li Huan - - 2012
Optomechanical phenomena in photonic devices provide a new means of light-light interaction mediated by optical force actuated mechanical motion. In cavity optomechanics, this interaction can be enhanced significantly to achieve strong interaction between optical signals in chip-scale systems, enabling all-optical signal processing without resorting to electro-optical conversion or nonlinear materials. ...
Naidoo S - - 2012
SETTING: Primary health clinics in KwaZulu-Natal, South Africa.OBJECTIVE: To assess and describe current practices in infection control at local government primary health clinics.DESIGN: A descriptive study using a standardised tool to assess adherence to recommended infection control policies in 51 primary health clinics in 2009-2010. Administrative policies, engineering controls and ...
Kwon Young-Min - - 2012
OBJECTIVES:Nonalcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease, and its prevalence is much higher in obese individuals. NAFLD is closely related to metabolic syndrome (MetS); however, most concepts about the relationship between NAFLD and MetS have emphasized obesity, although NAFLD is not a rare ...
Nguyen-Truong Connie K Y - - 2012
OBJECTIVE: To explore factors potentially influencing Pap testing practices among Vietnamese American immigrant women (VIW, foreign-born) and describe their awareness of cervical cancer screening resources in their community. DESIGN: Descriptive study guided by the ecological model and community-based participatory research principles. SETTING: Portland, Oregon, metropolitan area. PARTICIPANTS: Vietnamese American immigrant ...
Shajib Md Tariqul Islam - - 2012
Certain isoflavones are plant growth inhibitors, and biochanin A is a major isoflavone in clover species used for weed management. The effect of biochanin A on the monocot weed species Echinochloa crus-galli L. and Lolium perenne L. and dicot species Silene noctiflora L., Geranium molle L. and Amaranthus caudatus L. ...
Eger Wilhelm A - - 2012
We studied computationally, on the model compound ethylenediamine, the insertion of carbon dioxide into diamines, yielding cyclic urea compounds. Two mechanisms were elaborated, depending on the value of the dielectric constant (DC) of the solvent. Accordingly, reaction mixtures with a high DC lead to carbamates, whereas lower DC values result ...
Kunz Vandeni C - - 2012
OBJECTIVE: To evaluate and to compare the cardiorespiratory and metabolic variables at the ventilatory anaerobic threshold level (AT) and at submaximal cardiopulmonary exercise testing (CPET) in both, healthy volunteers and in patients in the early phase after acute myocardial infarction (AMI). METHOD: Twenty-six volunteers underwent a submaximal or symptom-limited cardiopulmonary ...
Dorrer Christian - - 2012
Captive bubble experiments on surface-engineered silicon substrates with precisely tuned roughness and surface chemistry are reported. In these experiments, the substrates were submerged into water and air bubbles were dispensed from below. Our measurements revealed a super-bubble-repellent behavior, with bubbles freely moving around on the submerged surfaces. Drawing an analogy ...
Meissner Wassilios G - - 2012
BACKGROUND: Multiple system atrophy (MSA) has considerable effect on health-related quality of life (Hr-QoL). The aim of this study was to prospectively evaluate Hr-QoL by using the MSA health-related Quality of Life (MSA-QoL) scale. METHODS: Evaluation of 100 patients at baseline and after a mean follow-up of 11.5 months was ...
Daub Christopher David - - 2012
We study small clusters of water or methanol containing a single Ca(2+), Na(+) or Cl(-) ion with classical molecular dynamics simulations, using models which incorporate polarizability via the Drude oscillator framework. Evaporation and condensation of solvent from these clusters is examined in two systems: 1) for isolated clusters initially prepared ...
Jun Hee-Jin - - 2012
The in vitro effects on melanogenesis of γ-oryzanol (1), a rice bran-derived phytosterol, were investigated. The melanin content in B16F1 cells was significantly and dose-dependently reduced (-13% and -28% at 3 and 30 μM, respectively). Tyrosinase enzyme activity was inhibited by 1 both in a cell-free assay and when analyzed ...
Reimer Rachel A - - 2012
The purpose of this study was to examine how social and behavioral factors such as age of first intercourse, mother-daughter communication, and perceived norms are associated with human papillomavirus (HPV) vaccination behaviors, and whether ethnicity moderates those associations (non-Latina White versus Latina participants). From June through December 2009, we surveyed ...
Guittier Marie-Julia - - 2012
Abstract Objectives: The aims of this study were to gain a better understanding of the motivations of pregnant women utilizing moxibustion for breech presentation and to measure the impact of research results on these patients' treatment decisions regarding this alternative medicine technique. Design: The study involved a statistical analysis of ...
Chen Zhi Hong - - 2012
A combination of experimental methods, including transmission and grazing incidence small angle X-ray scattering (SAXS and GISAXS), small angle neutron scattering (SANS), transmission electron microscopy (TEM), dynamic light scattering (DLS), and N2 adsorption-desorption isotherms, were used to characterize SiO2/TiO2 hollow nanoparticles (HNPs) of sizes between 25 and 100 nm. In ...
Hadlich Marcelo Souza - - 2012
BACKGROUND: The standardization of images used in Medicine in 1993 was performed using the DICOM (Digital Imaging and Communications in Medicine) standard. Several tests use this standard and it is increasingly necessary to design software applications capable of handling this type of image; however, these software applications are not usually ...
Minamisawa R A - - 2012
Strained Si nanowires are among the most promising transistor structures for implementation in very large-scale integration due to of their superior electrostatic control and enhanced transport properties. Realizing even higher strain levels within such nanowires are thus one of the current challenges in microelectronics. Here we achieve 4.5% of elastic ...
Yin Jingzhou - - 2012
We successfully controlled the crystallographic surface of ZnSn(OH)(6) crystals and systematically obtained ZnSn(OH)(6) crystals in different shapes including cubes, truncated cubes, cuboctahedrons, truncated octahedrons, and octahedrons using a simple solvothermal method in a methylcellulose (MC) ethanol/water solution. By simply adjusting the amount of the NaOH solution added to the reaction ...
Gonzalez F - - 2012
Acute kidney injury (AKI) is a common and frequently fatal illness in critically ill patients, with a high associated-mortality. Early recognition of kidney injury and prompt corrective measures may improve outcome. Finding an early, accurate and reproducible biomarker for AKI is a research priority. In recent years, many urinary or ...
Remizowa Margarita V - - 2012
• Premise of the study: The predominantly aquatic order Alismatales displays a highly variable flower groundplan associated with a diverse range of developmental patterns. We present the first detailed description of flower anatomy and development in Posidonia, the sole genus of the seagrass family Posidoniaceae. Existing accounts provide conflicting interpretations ...
Blankenberg Francis G - - 2012
In humans, apoptosis (programmed cell death) is the most common form of cell death after necrosis. Apoptosis is a series of genetically preprogrammed biochemical and morphologic energy-requiring events that, after a specific external or internal stimulus, results in the physiologic disappearance of a cell via its self-disintegration and packaging of ...
Son Ji-Hee - - 2012
The Colorado Department of Public Health and Environment (CDPHE) proposed the in-stream numeric nutrient criteria as 2 mg TN per L and 0.16 mg TP per L for warm surface waters and 0.40 mg TN per L and 0.11 mg TP per L for cold surface waters. Consequently the department ...
Zuckerman Scott L - - 2012
Object Several studies have suggested a gender difference in response to sports-related concussion (SRC). The Concussion in Sport group did not include gender as a modifying factor in SRC, concluding that the evidence at that point was equivocal. In the present study the authors endeavored to assess acute neurocognitive and ...
Morgado Leonor - - 2012
The bacterium Geobacter sulfurreducens (Gs) is capable of oxidising a large variety of compounds relaying electrons out of the cytoplasm and across the membranes in a process designated as extracellular electron transfer. The trihaem cytochrome PpcA is highly abundant in Gs being most likely the reservoir of electrons destined for ...
Del Zoppo Gregory J - - 2013
The Nobel laureate Max Delbrück often said that it is the crossover between disciplines where advances are possible in science. This certainly has been true for our understanding of the vascular biology of the central nervous system in the setting of ischemic stroke. The ability to cross the boundaries of ...
Bidar Abdel Wahad - - 2012
Changes in adipose tissue distribution and ectopic fat storage in e.g. liver and skeletal muscle tissue impact whole body insulin sensitivity in both humans and experimental animals. Numerous mouse models of obesity, insulin resistance and diabetes exist, however current methods to assess mouse phenotypes commonly involve direct harvesting of the ...
Xu Congying - - 2012
Mutagenicity is one of the most important endpoints of toxicity. Due to high cost and laborious in experimental test, it is necessary to develop robust in silico methods to predict chemical mutagenicity. In this paper, a comprehensive database containing 7617 diverse compounds, including 4252 mutagens and 3365 non-mutagens, was constructed. ...
Couto Paulo Francisco - - 2012
The relationship between blood pressure and discrimination has been recently investigated, and there are conflicting debates in literature devoted to the topic. The objective of this study was to update previous literature reviews on discrimination and blood pressure. A bibliographic search was conducted in PubMed between January/2000 and December/2010, including ...
Vivar Carmen - - 2012
Adult hippocampal neurogenesis is considered important for cognition. The integration of newborn dentate gyrus granule cells into the existing network is regulated by afferent neuronal activity of unspecified origin. Here we combine rabies virus-mediated retrograde tracing with retroviral labelling of new granule cells (21, 30, 60, 90 days after injection) ...
Moreno Alberto - - 2012
The rate coefficients for the reaction of NO3 radical with 2-butanol, 3-methyl-2-butanol and 2,3-dimethyl-2-butanol were determined using relative rate technique in a 50 L glass pyrex photoreactor using in situ FT-IR spectroscopy at room temperature and pressure of 350-670 Torr. Rate coefficient for the reaction of 2-methyl-2-butanol with NO3 radical ...
Meier Herbert - - 2012
The dimerization of anthracene by a [4π + 4π] cycloaddition is one of the oldest and best known reactions in photochemistry. In the series of tethered bichromophoric arenes, this reaction type could be extended to anthracene-naphthalene, naphthalene-naphthalene and recently even to anthracene-benzene and naphthalene-benzene systems. Cyclophanes, which can be regarded ...
Andreoli Steven M - - 2012
ObjectiveAdenoid hypertrophy and chronic adenoiditis are associated with an increased incidence of chronic otitis media. This study intends to determine the relationship between chronic otitis media and dynamic ciliary beat frequency in children undergoing adenoidectomy.Study DesignProspective, controlled study.SettingPediatric tertiary care hospital.Subjects and MethodsChildren undergoing adenoidectomy were enrolled. Patients were stratified ...
Hartwig Andreas - - 2012
Purpose: To use a large wavefront database of a clinical population to investigate relationships between refractions and higher order aberrations and between aberrations of right and left eyes. Methods: Third and fourth-order aberration coefficients and higher-order root-mean-squared aberrations (HO RMS), scaled to a pupil size of 4.5 mm diameter, were ...
Patra Satyajit - - 2012
The microscopic structure and dynamics of the room temperature ionic liquids (RTILs) that are responsible for some of the peculiar properties of this class of solvents continue to intrigue the researchers and stimulate new investigations. Herein, we use the fluorescence correlation spectroscopy (FCS) technique to study the diffusion of some ...
Abe Yuichiro - - 2012
2,4-Trifluoromethylquinoline (TFMAQ) derivatives that have amine (1), methylamine (2), phenylamine (3), and dimethylamine (4) substituents at the 7-position of the quinoline ring were prepared and crystallized. Six crystals including the crystal polymorphs of 2 (crystal GB and YG) and 3 (crystal B and G) were obtained and characterized by X-ray ...
Xu Gang - - 2012
The preparation of crystalline, ordered thin films of metal-organic frameworks (MOFs) will be a critical process for MOF-based nanodevices in the future. MOF thin films with perfect orientation and excellent crystallinity were formed with novel nanosheet-structured components, Cu-TCPP [TCPP = 5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin], by a new "modular assembly" strategy. The modular assembly ...
Persat Florence - - 2012
The migration of DCs is a critical function, enabling information to be carried to where the immunological response occurs. Parasites are known to weaken host immunity by interfering with the functions of DCs and thus, may be a source of molecules with immunomodulatory properties. Here, we demonstrate that the soluble ...
Jiang Jinqiang - - 2012
A novel coumarin-centered amphiphilic star-block polymer of has been designed to investigate the pH-induced accompanying outward movement of hydrophobic coumarin centers within the polymer micelles upon protonation.
Raviprakash Kanakatte - - 2012
A tetravalent DNA vaccine formulated with Vaxfectin adjuvant was shown to elicit high levels of neutralizing antibody against all four dengue virus serotypes (Porter et al., Vaccine 30:336, 2011), warranting further testing in humans. In preparation for a phase 1 clinical testing, the vaccine and the adjuvant were manufactured under ...
Lété Bernard - - 2012
In a series of six experiments, the influence of frequency trajectory in visual word recognition was investigated. In Experiment 1, frequency trajectory was found to exert a strong and reliable influence on age of acquisition (AoA) ratings. In word reading (Experiment 2), lexical decision (Experiments 3 and 6), proper name ...
Macdonald Gordon A - - 2012
We demonstrate mapping of electrical properties of heterojunctions of a molecular semiconductor (copper phthalocyanine, CuPc) and a transparent conducting oxide (indium-tin oxide, ITO), on 20-500 nm length scales, using a conductive-probe atomic force microscopy (C-AFM) technique, Scanning Current Spectroscopy (SCS). SCS maps are generated for CuPc/ITO heterojunctions as a function ...
Grube Maike Miriam - - 2012
BACKGROUND AND PURPOSE: We aimed to analyze the association between patient socioeconomic status and functional impairment 3 months after ischemic stroke and to identify factors that influence this association. METHODS: Data were obtained from the Berlin Stroke Register, a network of 14 stroke units in Berlin. Ischemic stroke patients consecutively ...
Ren Zhi - - 2012
We describe a Pd-catalyzed site-selective functionalization of unactivated aliphatic C-H bonds, providing chemically differentiated 1,2-diols from mono-alcohol derivatives. The oxime was employed as both a directing group and an alcohol surrogate for this transformation. As demonstrated in a range of substrates, the C-H bonds α to the oxime group are ...
Pedraza Eileen - - 2012
Clinical islet transplantation has demonstrated success in treating type 1 diabetes. A current limitation is the intrahepatic portal vein transplant site, which is prone to mechanical stress and inflammation. Transplantation of pancreatic islets into alternative sites is preferable, but challenging, as it may require a three-dimensional vehicle to confer mechanical ...
Sato Y - - 2012
What is known and Objective:  Pilocarpine, a muscarinic receptor agonist, has been used for the treatment of dry mouth. Salivary glands are supplied with nerve fibres that contain neuropeptides, such as substance P, calcitonin gene-related peptide (CGRP) and vasoactive intestinal polypeptide (VIP), which are important modulators of salivation. It is ...
Kim Dong Wook - - 2012
Background and Purpose: Understanding the CT characteristics of the pyramidal lobe and other thyroid variations and detecting them accurately using preoperative neck CT will minimize unnecessary remnant thyroid after total thyroidectomy in thyroid cancer patients. The purpose of the present study was to assess the frequency, location, and size of ...
Clarke Brian D - - 2012
Abstract RNA interference (RNAi) is a powerful, sequence specific, and long-lasting method of gene knockdown, and can be elicited by the expression of short-hairpin RNA (shRNA) molecules driven via polymerase III type 3 promoters from a DNA vector or transgene. To further develop RNAi as a tool in zebrafish, we ...
Rackwitz Sergej - - 2012
The vibrational properties of the cationic spin crossover (SCO) coordination polymers [{Fe(4-amino-1,2,4-triazole)(3)}(+2)](n) containing the anions chlorine, methanosulfonate and 1-naphthalenesulfonate have been studied via nuclear inelastic scattering of synchrotron radiation (NIS) as well as by Raman spectroscopy. Although the different anions have a strong influence on the spin crossover temperature, they ...
Barreira João C M - - 2012
Mushrooms are becoming relevant foods due to their nutritional, gastronomic and pharmacological properties, namely antioxidant, antitumor and antimicrobial properties. However, despite several mushroom species have been chemically characterized, the evaluation of triacylglycerol (TAG) profile remained nearly discarded. Since TAG was formerly used to assess the authentication of highly valued commercial ...
Cai Zhongyu - - 2012
An improved convective self-assembly method was developed to fabricate crack-free colloidal crystal heterostructure. A composite opaline heterostructure composed of polystyrene (PS) colloids was firstly fabricated. Subsequent calcination of the opaline heterostructure led to the formation of inverse opaline heterostructure composed of SiO2 or TiO2. Both opaline and inverse opaline heterostructures ...
Adeloye Davies - - 2012
Introduction Road traffic injuries (RTIs) and attendant fatalities on Nigerian roads have been on an increasing trend over the past three decades. Mortality from RTIs in Nigeria is estimated to be 162 deaths/100,000 population. This study aims to compare and identify best prehospital trauma care practices in Nigeria and some ...
< 5 6 7 8 9 10 11 12 13 14 15 >