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Results 251 - 300 of 2845
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Derrah Eric J - - 2012
Gold, silver and rhodium complexes of the diphosphine-phosphine oxide DPPO = {[o-iPr(2)P-(C(6)H(4))](2)P(O)Ph} have been prepared and characterized. Thanks to its polyfunctional character, DPPO features versatile coordination properties. According to crystallographic data, only one phosphine moiety is engaged in coordination towards (AuCl) and [RhCl(nbd)]. However, NMR data indicate fluxional behavior in ...
Zhu San-E - - 2012
Thermal reactions of [60]fullerene with a series of amino acids and amino acid esters under aerobic and dark conditions have been investigated. Fulleropyrrolidines can be obtained from these reactions although an aldehyde is not added purposely. Possible reaction mechanisms involving uncommon C-N bond cleavages have been proposed to generate aldehydes, ...
Unnadkat Nausheel R - - 2012
Polyphenols are attractive ingredients due to their purported health benefits, but their addition to foods is limited by their chemical instability, as they are rapidly oxidized under many conditions. This oxidation not only compromises the potential biological activity of the phenolic compound, but can also affect the chemical stability of ...
Atanasova-Penichon Vessela - - 2012
Fusarium graminearum is the causal agent of Gibberella ear rot and produces trichothecene mycotoxins. Basic questions remain unanswered regarding the kernel stage(s) associated with trichothecene biosynthesis and the kernel metabolites potentially involved in the regulation of trichothecene production in planta. In a two-year field study, F. graminearum growth, trichothecene accumulation, ...
Haisch Christoph - - 2012
A photoacoustic spectrometer for the measurement of aerosol absorption spectra, based on the excitation of a pulsed nanosecond Optical Parametrical Oscillator (OPO), will be introduced. This spectrometer is working at ambient pressure and can be used to detect and characterize different classes of aerosols. The spectrometer features a spectral range ...
Piskin Mehmet Mesut - - 2012
Abstract Purpose: In this study, we report our initial experience using microperc for treatment of kidney stones and the implications of the microperc system in bladder stone management. Patients and Methods: Microperc was performed with a 4.85F "all-seeing needle" in 11 patients with stone disease; 9 of the patients had ...
Ogundipe Kolawole Olubunmi - - 2012
BACKGROUND: Emergency department (ED) violence is common and widespread. ED staff receive both verbal and physical abuse, with ED nurses bearing the brunt of this violence. The violence is becoming increasingly common and lethal and many institutions are still improperly prepared to deal with it. METHODS: A questionnaire based survey ...
Pfannenschmidt Ulrike - - 2012
The phosphides REIr(2)P(2) (RE = La-Nd, Sm) and arsenides REIr(2)As(2) (RE = La-Nd) were synthesized by a ceramic route via precursor compounds REIr(2) with phosphorus and arsenic, respectively. Well-shaped single crystals were obtained from lead and bismuth fluxes, respectively. The nine pnictides crystallize with the tetragonal CaBe(2)Ge(2) type structure, space ...
Shill Jessica - - 2012
ACADEMIC EMERGENCY MEDICINE 2012; 19:000-000 © 2012 by the Society for Academic Emergency Medicine ABSTRACT: Objectives:  The objective was to determine, among emergency department (ED) patients, the factors associated with a high level of satisfaction with pain management. Methods:  This was a prospective cohort study in a single ED. Consecutive ...
Browning Travis - - 2012
PURPOSE: To improve timely evaluation and management of newly identified, suspected, gastrointestinal (GI) malignancies discovered on radiologic imaging at a safety-net hospital through direct critical results messaging to surgical specialists. MATERIALS AND METHODS: To address delays in evaluating patients for suspected GI malignancies identified on imaging, an enhanced workflow was ...
Zhao Weiyun - - 2012
Carbon monoxide (CO) is a highly toxic gas that can be commonly found in many places. However, it is not easily detected by human olfaction due to its colorless and odorless nature. Therefore, highly sensitive sensors need to be developed for this purpose. Carbon nanotubes (CNTs) have an immense potential ...
Chuykin Ilya - - 2012
During early mammalian development, primitive endoderm (PrE) is specified and segregated away from the pluripotent epiblast. At a later developmental stage, PrE forms motile parietal endoderm (PE) lying proximal to the trophectoderm, and visceral endoderm (VE) that contacts the developing epiblast and extraembryonic ectoderm. Mouse extraembryonic endoderm (XEN) cells were ...
De Smedt Stefan - - 2012
Vernal keratoconjunctivitis (VKC) is a bilateral, usually seasonally recurrent, allergic inflammation of the conjunctiva, characterised by limbal gelatinous hypertrophy and/or upper tarsal giant conjunctival papillae. Although rare in temperate regions, it represents an important cause of hospital referral in many parts of Africa and Asia. Clinical and immunohistochemical studies suggest ...
Thom Simon - - 2012
The use of preventive medications in people at high risk of cardiovascular disease is conceptually straightforward, yet in practice the adoption of such measures is disappointingly low, plus there is wide international variation in preventive therapies.Several barriers might explain this shortfall and variation, but the simplicity and economy of a ...
Chafetz Michael D - - 2012
Justice Scalia warned in his dissent in ATKINS v. VIRGINIA, 536 U.S. 304, 122S.Ct. 2242 (2002) that the problem of feigned mental retardation would complicate the findings in cases involving the death penalty in low IQ individuals. Validity measurement in low IQ individuals has been criticized, largely with questions concerning ...
Romejko-Wolniewicz Ewa - - 2012
Abstract Objective: The objective of this study was to compare the effects of two betamethasone dosage regimens on selected parameters in mothers and on the status of the preterm newborn. Methods: The analysis included 121 patients who gave birth by gestational week 35 and within 7 days after the completion ...
Sen Anik - - 2012
Crystal face lift: Barbituric acid is shown to be a new crystal-habit modifier for sodium chloride crystals. Two morphologies of salt crystals can be prepared separately with this new additive. It is of the few additives able to induce rhombic dodecahedron crystals for NaCl, and is required only a trace ...
Lee Ban S - - 2012
OBJECTIVES: To compare survival in older (≥65) and younger (<65) individuals with biliary tract cancer (BTC) and to determine whether treatment efficacy varies according to age. DESIGN: Retrospective cohort study and nested case-control study. SETTING: Tertiary referral center in Korea. PARTICIPANTS: Five hundred thirty-one individuals diagnosed with BTC from 2003 ...
Lowe David A - - 2012
ACADEMIC EMERGENCY MEDICINE 2012; 19:000-000 © 2012 by the Society for Academic Emergency Medicine ABSTRACT: Objectives:  Patient and parent satisfaction are important measures of quality of care. Data are lacking regarding satisfaction with emergency procedures, including laceration repair. The objective was to define the elements of care that are important ...
Mitsui Jun - - 2012
Genetic and phenotypic heterogeneities are considerably high in adult-onset leukoencephalopathy, in which comprehensive mutational analyses of the candidate genes by conventional methods are too laborious. We applied exome sequencing to conduct a comprehensive mutational analysis of genes for autosomal dominant leukoencephalopathies. Genomic DNA samples from four patients of three families ...
Beach Christopher - - 2012
ACADEMIC EMERGENCY MEDICINE 2012; 19:000-000 © 2012 by the Society for Academic Emergency Medicine ABSTRACT: Patient care transitions across specialties involve more complexity than those within the same specialty, yet the unique social and technical features remain underexplored. Further, little consensus exists among researchers and practitioners about strategies to improve ...
Goltz Heather Honoré - - 2012
Introduction.  A growing literature suggests relationships between erectile dysfunction medications (EDM) and riskier sexual behavior among men who have sex with men (MSM). Questions remain concerning EDM use and related HIV/sexually transmitted infections (STI) risk among older MSM, particularly those 40 years and over, for whom EDM may be medically ...
Zhang Wangbing - - 2012
A novel non-chromatographic speciation technique for ultratrace inorganic mercury (Hg2+) and methylmercury (CH3Hg+) in biological materials is developed and validated by electrolytic vapor generation (EVG) coupled with atomic fluorescence spectrometry (AFS). The studies show that CH3Hg+ and Hg2+ can be conversed to Hg vapor efficiently on an L-cysteine modified graphite ...
Agina Elena V - - 2012
Different techniques for a relatively fast self-assembled monolayer film formation such as Langmuir-Blodgett (LB), spin-coating and dip-coating methods have been compared using chloro[11-(5''''-ethyl-2,2':5',2'':5'',2''':5''',2''''-quinquethiophene-5-yl)undecyl]dimethylsilane as a reactive precursor. It was shown that both spin-coating and LB techniques are very promising methods for preparation of highly ordered monolayer films of organosilicon-functionalized quinquethiophene ...
Willems-Jones Amber - - 2012
What's known on the subject? and What does the study add? The risk of developing aggressive prostate cancer is increased for men carrying a pathogenic germline mutation in BRCA2. An earlier study by the Kathleen Cuningham Consortium for Research into Familial Breast Cancer showed that BRCA2 mutation carriers displayed a ...
Yu H - - 2012
Objective The aim of this study was to examine the number of hot flush symptom-free days in symptomatic postmenopausal women treated with bazedoxifene/conjugated estrogens (BZA/CE). Methods In this 12-week, randomized, double-blind, placebo-controlled, phase-3 study, 322 postmenopausal women aged 40-65 years with an intact uterus who had ≥ seven moderate-to-severe daily ...
Osborne Olivia Joanna - - 2012
Abstract Manufactured metal (oxide) nanoparticles are entering the aquatic environment with little understanding on their potential health impacts for exposed organisms. Adopting an integrative approach, we investigated effects of particle size and coating on biological responses for two of the most commonly used metal (oxide) nanoscale particles, silver (Ag) and ...
Tanis Jozien C - - 2012
BackgroundOur aim was to determine functional outcome of very preterm-born and small for gestational age (SGA) children compared to matched controls at school age.MethodsWe included 28 surviving very preterm SGA children with GA<32 weeks, birth weights (BW) <10(th) percentile, born in 2000-2001. Twenty-eight appropriate for gestational age (AGA) children, matched ...
Kumar Sacheen - - 2012
Gastric content is a complex biofluid within the human stomach which has an important role in digestive processes. It is believed that gastric content may be a contributory factor in the development of upper gastro-intestinal diseases. In this work, Selected Ion Flow Tube Mass Spectrometry (SIFT-MS) has been applied to ...
Leth Steffen - - 2012
Pulmonary alveolar proteinosis (PAP) is a rare lung disease characterized by accumulation of a periodic acid-Schiff (PAS)-positive eosinophilic material in the distal airways. For decades, standard treatment of PAP has been whole lung lavage (WLL), where large quantities of saline are instilled into the lungs to remove the proteinaceous material. ...
Patil Sandip - - 2012
Inspired by the natural adhesives in the toe pads of arthropods and some other animals, we explore the effectiveness and peel failure of a thin viscoelastic liquid film anchored on a micropatterned elastic surface. In particular, we focus on the role of the substrate pattern in adhesion energy of the ...
Zhang Liangliang - - 2012
Based on enzyme-regulated unmodified gold nanoparticle aggregation, a visual and homogeneous assay of adenosine deaminase (ADA) activity without any other coupling enzymes, aptamers or additional modifications has been developed. The present strategy is simple, cost-effective, high throughput, selective and sensitive for ADA with a detection limit of 0.8227 U L(-1).
Zhang Yang - - 2012
Pre-synthesized ruthenium dioxide nanoparticulates (RuO(2) NPs) with low level of aggregation were well dispersed in mesoporous silica SBA-15. As a catalyst for water oxidation, the supported RuO(2) NPs exhibit excellent catalytic activity and recyclability. The initial turnover frequency (TOF) is to date the highest among comparable RuO(2) catalysts.
Gopalakrishnan C V - - 2012
Background: No consensus exists regarding the management of hydrocephalus in children with posterior fossa tumors before, during or after surgery. In the present study we analyze the factors that predispose to persistent hydrocephalus and the need for a postoperative cerebrospinal fluid (CSF) diversion procedure. Methods: Pediatric patients who underwent surgery ...
Saleh Gabriele - - 2012
Non-covalent interactions (NCI) define the rules underlying crystallisation, self-assembly and drug-receptor docking processes. A novel NCI descriptor, based on the reduced electron density gradient (RDG), that enables easy visualisation of the zones of the electron density (ED) involved in either the supposedly attractive (dispersive, hydrogen bonding) or allegedly repulsive (steric) ...
Ghantous Akram - - 2012
The promotion stage in the multistep process of epidermal tumorigenesis is NF-кB-dependent, epigenetically regulated, and reversible, thus, a suitable target for chemoprevention. We investigated whether the NF-кB inhibitor, parthenolide, currently in cancer clinical trials, attenuates tumor promotion by modulating the epigenetically regulated NF-кB target genes, p21 and cyclin D1. Parthenolide ...
Cauët Emilie - - 2012
The Car-Parrinello-based molecular dynamics (CPMD) method was used to investigate the ion-pairing behavior between Cl(-) and Al(3+) ions in an aqueous AlCl(3) solution containing 63 water molecules. A series of constrained simulations was carried out at 300 K for up to 16 ps each, with the internuclear separation (r(Al-Cl)) between ...
Sekino-Suzuki Naoko - - 2012
The association of gangliosides with specific proteins in the central nervous system was examined by co-immunoprecipitation with an anti-ganglioside antibody. The monoclonal antibody to the ganglioside GD3 (R24) immunoprecipitated the Csk (C-terminal src kinase)-binding protein Cbp. Sucrose density gradient analysis showed that Cbp of rat cerebellum was detected in detergent-resistant ...
Pitino Marco - - 2012
Microbial pathogens and pests produce effectors to modulate host processes. Aphids are phloem-feeding insects, which introduce effectors via saliva into plant cells. However, it is not known if aphid effectors have adapted to modulate processes in specific plant species. Myzus persicae is a polyphagous insect that colonizes Arabidopsis thaliana and ...
Dart Anna E - - 2012
Phagocytosis is the force-dependent complex cellular process by which immune cells engulf particles. Whilst there has been considerable progress in understanding ligand-receptor-induced actin polymerization in pushing the membrane around the particle, significantly less is known about how localized contractile activities regulate cup closure in coordination with the actin cytoskeleton. Herein, ...
Aguila Jerell R - - 2012
Within the complex life cycle of holometabolous insects, nutritional resources acquired during larval feeding are utilized by the pupa and the adult. The broad features of the transfer of larval resources to the pupae and the allocation of larval resources in the adult have been described by studies measuring and ...
Ha Leah Y - - 2012
BACKGROUND: A failure of urine ammonium to increase during acidosis indicates impaired renal acidification, and the urinary ammonium concentration is therefore a useful investigation in determining the cause of a metabolic acidosis. However, urine ammonium measurements are not widely available in routine diagnostic laboratories. This has led to the use ...
Uerpairojkit Chairoj - - 2012
The objectives of the study are to demonstrate the innervation patterns of the triceps muscles and the most suitable branch of the radial nerve for nerve transfer to restore the motor function of the deltoid muscle in patients with complete C5-C6 root injury. Seventy-nine arms (40 left arms and 39 ...
Seifert Susan - - 2012
The adsorption of poly(vinylformamide) (PVFA) and its derivated statistic copolymers poly(vinyl-formamide-co-vinylamine) (PVFA-co-PVAm) on metallic copper and copper oxide particles as well as planar copper surfaces was investigated as function of the degree of hydrolysis, pH and polymer concentration in solution. The chemical composition and structure of the PVFA-co-PVAm layers were ...
Kondo Masateru - - 2012
Background: The functional role of the cavotricuspid isthmus (CTI) for common atrial flutter (cAFL) remains to be elucidated. In the present study, we examined whether the EnSite system (St. Jude Medical, St. Paul, MN, USA), a noncontact mapping system, is useful to evaluate the conduction properties of CTI to minimize ...
Wang Yiguan - - 2012
ABSTRACT Parkinson's disease (PD) is a common neurodegenerative disease, the risk factors of which are gaining more attentions. Among all these risk factors, catechol-o-methyltransferase (COMT) has been widely studied, and believed to be associated with PD. However, the relationship between COMT polymorphism and PD has not been confirmed hitherto. Therefore, ...
Gada Hemal - - 2012
BACKGROUND: In the setting of chronic stable angina, successful percutaneous coronary intervention (PCI) of chronic total occlusions (CTO) has been shown to produce significant symptom improvement with some evidence for survival benefit. However, the economic basis for this procedure has not been established compared with optimal medical treatment (OMT) of ...
Xing Jianguo - - 2012
Context: Dracocephalum moldavica Linn (Labiatae) is one of the ethnomedicinal drugs of Uygur in Xinjiang, China. This herb is mainly used in treating cardiovascular diseases, such as atherosclerosis. However, the mechanism of pharmacological activity of D. moldavica has been poorly studied. Objective: To explore the pharmacological mechanism of D. moldavica ...
Serisier Dj - - 2012
SUMMARY AT A GLANCE: Australasian emergency and respiratory physicians infrequently use the Pneumonia Severity Index (PSI) and are unable to apply it accurately. Two physician groups differed in their relative abilities to apply PSI and CURB65, suggesting fragmented guideline dissemination. Australasian guidelines should promote a simple, coordinated pneumonia severity assessment ...
Menezes Cn - - 2012
OBJECTIVES: Stavudine is being phased out because of its mitochondrial toxicity and tenofovir (TDF) is recommended as part of first-line highly active antiretroviral therapy (HAART) in South Africa. A prospective, open-label, randomized controlled trial comparing standard- and low-dose stavudine with TDF was performed to assess early differences in adipocyte mtDNA ...
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