Search Results
Results 551 - 600 of 2845
< 7 8 9 10 11 12 13 14 15 16 17 >
Chen H-I - - 2012
Smoking is a leading global cause of avoidable mortality. It has been reported that the nicotinic acetylcholine receptor (CHRNA4 and CHRNB2) genes might be associated with smoking behavior in several ethnic populations. However, no study between the 2 genes and nicotine dependence (ND) using a Japanese population has been reported.We ...
Ren Q J - - 2012
We show that coating ZnO nanowires (NWs) with a transition metal, such as Ni, can increase the efficiency of light emission at room temperature. Based on detailed structural and optical studies, this enhancement is attributed to energy transfer between near-band-edge emission in ZnO and surface plasmons in the Ni film ...
Imai Ayano - - 2012
Purpose. To determine whether supernatants of human retinal pigment epithelium (RPE) cells can convert CD4+ T cells into regulatory T cells (Tregs) under Treg induction conditions in vitro and in vivo. Methods. Peripheral blood mononuclear cells were co-cultured with supernatants from TGFβ2-pretreated human RPE lines on anti-CD3-coated plates. Cells were ...
Martínez G - - 2012
The present work addresses the main bottleneck in the synthesis of magnetic nanoparticles by laser pyrolysis. Since the introduction of laser pyrolysis for the production of nanoparticles nearly three decades ago, this method has been repeatedly presented as a highly promising alternative, on account of two main characteristics: (i) its flexibility, ...
Connor Thomas Richard - - 2012
The disparity in diversity between unencapsulated (Non Typable, NT) and encapsulated, serotypable Haemophilus influenzae (Hi) has been recognised for some time. It has previously been suggested that the wider diversity evidenced within NT Hi compared with typable lineages may be due to different rates of recombination within the encapsulated and ...
Taylor J David - - 2012
The 8-repetition maximum test has the potential to be a feasible, cost-effective method of measuring muscle strength for clinicians. The purpose of this study was to investigate the concurrent validity of the 8-repetition maximum test in the measurement of muscle strength by comparing the 8-repetition maximum test to the gold ...
Woollard David J - - 2012
BACKGROUND: Prostate cancer disseminates to regional lymph nodes, however the molecular mechanisms responsible for lymph node metastasis are poorly understood. The vascular endothelial growth factor (VEGF) ligand and receptor family have been implicated in the growth and spread of prostate cancer via activation of the blood vasculature and lymphatic systems. ...
Leuchte Hanno H - - 2012
Background: Pulmonary hypertension (PH) of various causes leads to a poor prognosis. Pulmonary vasoreactivity testing during right heart catheterization (RHC) has prognostic and therapeutic consequences. Objective: To characterize the acute hemodynamic response to short-term oxygen supplementation (SHOT) in adult PH patients and its impact on prognosis. Methods: After a stable ...
Tabaee Abtin - - 2012
BACKGROUND: The past decade has witnessed the emergence of rhinology as a distinct subspecialty within otolaryngology. A critical evaluation of this process is necessary to define the field and to determine the impact of subspecialization on residency education. METHODS: An Internet-based survey of otolaryngology residency chairmen was performed to query ...
Yoo Woo-Jin - - 2012
A simple and straightforward method for the preparation of indole-3-carboxylic acids was discovered through the direct carboxylation of indoles with atmospheric pressure of carbon dioxide (CO(2)) under basic conditions. The key for the reaction was found to be the use of a large excess of LiO(t)Bu as a base to ...
Benjamin Neelon Sara E - - 2012
OBJECTIVE: The purpose of the present study was to assess the nutritional quality of foods and beverages listed on menus serving children in government-sponsored child-care centres throughout Mexico. DESIGN: For this cross-sectional menu assessment, we compared (i) food groups and portion sizes of foods and beverages on the menus with ...
Wängler Carmen - - 2012
Here we present a procedure to label peptides with the positron-emitting radioisotope fluorine-18 ((18)F) using the silicon-fluoride acceptor (SiFA) labeling methodology. Positron emission tomography (PET) has gained high importance in noninvasive imaging of various diseases over the past decades, and thus new specific imaging probes for PET imaging, especially those ...
Culvenor Adam G - - 2012
Patellofemoral joint (PFJ) osteoarthritis (OA) is a prevalent disease capable of being a potent source of knee symptoms. Although anterior cruciate ligament (ACL) injury and reconstruction (ACLR) are well-established risk factors for the development of tibiofemoral joint OA, PFJ OA after ACL reconstruction has gone largely unrecognised. This is despite ...
Fouks Bertrand - - 2012
Foraging is a result of innate and acquired mechanisms, and is optimized in order to increase fitness. During foraging an animal faces many threats - such as predation and infection. The uptake of parasites and diseases while foraging is common and an individual should be adapted to detect and avoid ...
Cnossen Arjen - - 2012
Driving molecular rotary motors using visible light (530-550 nm) instead of UV light was achieved using palladium tetraphenylporphyrin as a triplet sensitizer. Visible light driven rotation was confirmed by UV/vis absorption, circular dichroism and 1H NMR spectroscopy and the rotation was confirmed to be unidirectional and with similar photostationary states, ...
Sylvester Deborah Claire - - 2012
BACKGROUND: The management of chronic rhinosinusitis is based on a trial of "maximal medical therapy" before surgery is considered. Ear-Nose-Throat (ENT) UK consultant members were surveyed to determine the role and variability of UK-wide practices. METHODS: A survey was posted to all ENT UK consultant members (n = 603). This ...
Tanaka Kyoko - - 2012
Glycolipid and transporter protein gene expression in ovarian serous carcinoma-derived 2008 cells, and their paclitaxel-resistant P×2 and cisplatin-resistant C13 forms was examined to confirm the previous finding, i.e., that it was characteristically altered in anticancer drug-resistant cells established on continuous cultivation of ovarian carcinoma-derived KF28 cells in the different anticancer ...
Pompeo Matthew - - 2012
No migration? No problem! A series of new N-heterocyclic carbene based Pd complexes has been created and evaluated in the Negishi cross-coupling of aryl- and heteroaryl chlorides, bromides, and triflates with a variety of secondary alkylzinc reagents. The direct elimination product is nearly exclusively formed; in most examples there is ...
Luiz Luz Leiria Tiago - - 2012
Background: To describe the association between body mass index (BMI) and a positive response during a head-up tilt test (HUT) in patients referred for an investigation of syncope. Methods: Observational study of patients referred for the diagnostic evaluation of syncope. Patients were divided into four groups according to their BMI: ...
Kane Stephen R - - 2012
Abstract The habitable zone for a given star describes the range of circumstellar distances from the star within which a planet could have liquid water on its surface, which depends upon the stellar properties. Here we describe the development of the habitable zone concept, its application to our own solar ...
Rabinowich Liane - - 2012
OBJECTIVE: Previous reports on the association between statin use and venous thromboembolism (VTE) did not examine patient adherence to medications, thus their applicability in a real life setting is questionable. Our objective was to investigate the association between the use of statins and incidence of first ever idiopathic VTE. DESIGN: ...
Guasch Judith - - 2012
An organic switch: An open-shell dyad, consisting of an electron acceptor perchlorotriphenylmethyl radical unit linked to an electron π-donor tetrathiafulvalene unit through a vinylene π-bridge, was synthesized. The self-assembly of the dyad in solution induced by its intramolecular electron transfer was studied.
Forouzesh Elham - - 2012
Turgor pressure in plant cells is involved in many important processes. While stable and normal turgor pressure is required for healthy growth of a plant, changes in turgor pressure are indicative of changes taking place within the plant tissue. The ability to quantify turgor pressure of plant cells in vivo ...
Vilmar A C - - 2012
BackgroundPlatinum-based doublets (PBDs) remain the cornerstone of treatment in non-small-cell lung cancer (NSCLC) and may include gemcitabine. A biomarker predicting sensitivity to this antimetabolite would represent a major step forward. Accordingly, we explored the predictive role of ribonucleotide reductase subunit M (RRM1) in advanced NSCLC.Patients and methodsA total of 443 ...
Gregório Sílvia F - - 2012
In addition to high drinking rates, processing of intestinal fluid is essential for osmoregulation in marine fish. This study analyzed the long-term response of the sea bream (Sparus aurata L.) to relevant changes of external salinity 12, 35 and 55ppt focusing on the anterior intestine and in the less often ...
Wen Tianlong - - 2012
Large area dense hole arrays with feature size ~ 10 nm were generated using self-assembled monolayers of nanoparticles as etch masks. To fabricate the hole arrays, monolayers of nanoparticles were irradiated by electron beam to turn surfactants into amorphous carbon, treated by acid to remove the nanoparticle cores, and then ...
Vanholme Ruben - - 2012
CONTENTS: Summary    1 I. Introduction    2 II. Phenolic metabolism    2 III. Lignin biosynthesis and structure    6 IV. Alternative lignin monomers for biofuel applications    8 V. Candidate alternative monolignols in biomimetic systems 14 VI. From phenolic profiling to lignomics 15 VII. Phenolic pathway engineering towards alternative monolignols 16 Acknowledgements 17 References ...
Eskenazi Terry - - 2012
Social influences on action and memory are well established. However, it is unknown how acting together affects the incidental encoding of information. The present study asked whether coactors encode information that is relevant to a partner's task, but irrelevant to their own task. In Experiment 1, participants performed a categorization ...
Tamminen Jakke - - 2012
We sought to establish whether novel words can become integrated into existing semantic networks by teaching participants new meaningful words and then using these new words as primes in two semantic priming experiments, in which participants carried out a lexical decision task to familiar words. Importantly, at no point in ...
Schmieder Roland E - - 2012
Hypertension is the most prevalent, treatable cause of cardiovascular (CV) disease. Patients with hypertension and one or more comorbidities increasingly form a significant part of the primary care practitioner's caseload. The emphasis on intensive blood pressure (BP) lowering has softened, encouraging any degree of BP lowering, since any fall in ...
Kotikam Venubabu - - 2012
The fluorescently labelled short octameric oligothymine sequences of DNA, PNA and PCNA were used in fluorescence quenching studies in conjunction with dispersed graphene oxide. The measurable restoration of their fluorescence by complementary oligodeoxyadenylate was compared. This is the first study aimed at replacing the natural DNA probes with synthetic DNA ...
Donadeu Francesc Xavier - - 2012
Although much progress has been made in the genetic dissection of biological networks involved in follicular/luteal development in the mammalian ovary, the gene regulation mechanisms involved are still poorly understood. Over the last 10 years, miRNAs have emerged as master regulators of tissue growth and differentiation in animals. However, compared ...
Lau Tze Kin - - 2012
Abstract Non-invasive prenatal screening for fetal Down syndrome (NIFTY) by maternal plasma sequencing was performed in 12 subjects with twin pregnancies, including 11 with normal fetuses and 1 with discordant fetal Trisomy 21. For every sample, it was processed, sequenced and reported as soon as it was collected as other ...
Devaraj Sridevi - - 2012
Abstract Background: Metabolic syndrome affects 1 in 3 U.S. adults. The primary target of treatment of patients with metabolic syndrome is therapeutic lifestyle change. Numerous animal trials have reported positive effects of Aloe vera in in vivo models of diabetes, but there is a paucity of controlled clinical trials in patients ...
Lazzaro Daniel P - - 2012
Many platinum(II) polypyridine complexes are good luminophores, an enigmatic exception being Pt(trpy)Ph(+), where trpy denotes 2,2':6',2″-terpyridine. A new analysis suggests the complex is nonemissive due to (3)SBLCT (sigma-bond-to-ligand charge transfer) character in the lowest energy excited state. Bases for two distinct strategies for inducing emission from aryl derivatives become clear. ...
Singh Balwinder - - 2012
OBJECTIVES: To perform a systematic review and meta-analysis including all the current studies to assess the accuracy of pulmonary embolism rule-out criteria (PERC) in ruling out pulmonary embolism (PE). METHODS: We conducted a comprehensive search of the major databases (Ovid Medline In-Process & Other Non-Indexed Citations, Ovid MEDLINE, Ovid EMBASE, ...
Kazantseva Marina - - 2012
ABSTRACT: INTRODUCTION: Smoking increases the risk of developing rheumatoid arthritis (RA) and affects the severity of established RA. Smoking can impact on Th17 lymphocyte differentiation and function through activation of the aryl hydrocarbon receptor (AHR), a process with implications for the pathogenic mechanisms in RA that involve the cytokine, interleukin ...
Yu Yanwen - - 2012
A new p-phenylenevinylene-linked perylene diimide has been synthesized and self-assembled for the formation of zero-dimensional molecular aggregate structures of nanospheres and vesicles through solvent tuning. The solid-state optical properties induced by a special wavelength laser were studied and the results indicated excellent fluorescent enhancement properties. The emission intensity of these ...
Atar Murat - - 2012
Abstract Objective.The aim of this study was to investigate the effects of acute exercise on the diameter of the spermatic vein, and on the duration of reflux in patients with varicocele. Material and methods. The study included 38 patients with complaints of infertility and scrotal pain between 2009 and 2010. ...
Jalabert D - - 2012
Medium energy ion spectroscopy experiments have been performed on an ensemble of nanowires deposited by molecular beam epitaxy on Si(111), taking advantage of their reduced in-plane mosaicity. In particular, the strain in nanometric GaN insertions embedded in AlN sections deposited on top of GaN nanowires has been determined. The measured ...
Al Aïn Syrina - - 2012
It is a mammalian female strategy to emit odor cues and signals that direct their inexperienced newborns to the nipple, and optimize their initial sucking success and, hence, viability. Here, natural odorous substrates that contribute to nipple grasping were investigated in mice, a species that has not been much scrutinized ...
Sullivan Kevin M - - 2012
OBJECTIVE: Neonates are at high risk for significant morbidity and mortality from medication prescribing errors. Despite general awareness of these risks, mistakes continue to happen. Alerts in computerised physician order entry intended to help prescribers avoid errors have not been effective enough. This improvement project delivered feedback of prescribing errors ...
Bremner Fion D - - 2012
Purpose:To investigate the correlation between measurements of amplitude (A) and peak velocity (V) of constriction in the pupil light reflex of normal subjects, and to determine the effects of stimulus intensity, pupil size and age on this relationship. Methods:The pupil response to a variable intensity 1.0 second light stimulus presented ...
Rummel Seth - - 2012
The breast tumor microenvironment plays an active role in tumorigenesis. Molecular alterations have been identified in tumor-associated stroma; however, there is considerable debate as to whether the stroma is characterized by genomic instability or whether detection of chromosomal alterations reflects technological artifact rather than the true genomic content of the ...
Mei-Dan Elad - - 2012
Abstract Objective: To examine whether plasma levels of aspartate transaminase (AST) and alanine transaminase (ALT) during the first 20 weeks of pregnancy can predict preeclampsia in the second half of pregnancy. Methods: The study population included 15010 registered births. Receiver operating characteristic (ROC) curve analysis was used to describe the ...
Qi Sara D - - 2012
Induced pluripotent stem cells (iPSCs) are generated from somatic cells by the exogenous expression of defined transcription factors. iPSCs share the defining features of embryonic stem cells (ESCs) in that they are able to self-renew indefinitely and maintain the potential to develop into all cell types of the body. These ...
Wilkens Verena - - 2012
Mitochondria are involved in cellular energy supply, signaling and apoptosis. Their ability to fuse and divide provides functional and morphological flexibility and is a key feature in mitochondrial quality maintenance. To study the impact of mitochondrial fusion/fission on the reorganization of inner membrane proteins, OXPHOS complexes in mitochondria of different ...
Mattoso Crs - - 2012
Plasmatic concentrations of von Willebrand Factor (vWF) increase during pregnancy in humans and dogs; however the mechanism of such increase is still not well defined. The aims of this study were: (i) to evaluate changes in vWF concentration during pregnancy and during the subsequent oestrous cycle in bitches affected and ...
Krebbekx Willemijn - - 2012
OBJECTIVES: A gap between health services research and practice has been identified: research findings often do not find their way into practice. Our objective was to explore the potential of collaborative research to bridge this gap in one specific area, health promotion, and to determine factors that influence the development ...
Kimoto Takaya - - 2012
The solution-dispersed-state and polymer-dispersed-state circular dichroism (CD) and circularly polarized luminescence (CPL) properties of chiral binaphthyl fluorophores could be controlled by the choice of open- or closed-type substituents on the binaphthyl units and by the axial chirality of the binaphthyls.
< 7 8 9 10 11 12 13 14 15 16 17 >