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Wang Nengwen - - 2013
Geometrical diffuse reflection is a common optical phenomenon that occurs when a reflecting surface has roughness of order of hundreds of micrometres. Light rays thus reflect uniformly in all directions with each ray obeying Snell's law. Of interest is knowing what happens when light reflects off surfaces with roughness of ...
Zhang Lei - - 2013
Precious iron: A new PNN iron complex has been developed for use in an iron-catalyzed alkene hydroboration reaction under mild conditions. The environmentally friendly and earth-abundant iron catalyst system is superior to precious-metal systems in terms of efficiency and selectivity for α-olefin hydroborations with pinacolborane.
Zhu Cun - - 2013
This article describes an aqueous method for the synthesis of Pd seeds with a single-crystal structure and a uniform diameter of 3 nm and their use for the growth of Pd nanocrystals with a variety of shapes. We have also investigated the effects of a number of parameters, including the temperature, ...
Yu Bingran - - 2013
A π-conjugated AB(2) monomer 1 with a dibenzo[24]crown-8 (DB24C8) ring and two secondary amine centres has been synthesised. Treatment of a solution of 1 in dichloromethane with trifluoroacetic acid (TFA) leads to protonation of the amine groups, and then the DB24C8 rings are threaded by the dialkylammonium ion centres of ...
Asiimwe Benon B - - 2013
ABSTRACT: BACKGROUND: Smear microscopy, a mainstay of tuberculosis (TB) diagnosis in developing countries, cannot differentiate M. tuberculosis complex from NTM infection, while pulmonary TB shares clinical signs with NTM disease, causing clinical and diagnostic dilemmas. This study used molecular assays to identify species and assess genotypic diversity of non-tuberculous mycobacteria ...
Dragano Nathalia R V - - 2013
The peel of the native Brazilian fruit jaboticaba is rich in anthocyanins, which are known for their anti-obesity effects in animal models. The aim of the present study was to evaluate the effects of freeze-dried jaboticaba peel powder (FDJPP) on a number of metabolic parameters in a model of diet-induced ...
Li W - - 2013
Cervical cancer is the most common genital malignancy and the high-risk human papillomaviruses (HPV type 16, 18 and 31, and so on) are major agents for its cause. A key switch for the onset of cervical cancers by HPVs is the cellular degradation of the tumor-suppressor p53 that is mediated ...
Chaikittisilp Watcharop - - 2013
Make intergrowth, not war! Hierarchically organized MFI zeolites possessing micro-, meso-, and macroporosity in one structure were made by sequential intergrowth using a simple organic structure-directing agent (OSDA) without meso- or macroporogens. The use of an OSDA that imperfectly fit the zeolite framework generated very thin zeolite plates with 90° ...
Polsen Erik S - - 2013
The widespread potential application of vertically aligned carbon nanotube (CNT) forests have stimulated recent work on large-area chemical vapor deposition growth methods, but improved control of the catalyst particles is needed to overcome limitations to the monodispersity and packing density of the CNTs. In particular, traditional thin-film deposition methods are ...
Apostolakis Dimitrios - - 2013
OBJECTIVES: The superior alveolar canal with its contents is frequently reported as an anatomical point of consideration during lateral sinus floor elevation due to the danger of bleeding and of the subsequent impairment of vision of the surgical field. Malnutrition of the graft may also ensue. This radiographical study uses ...
Lee Jin-Gu - - 2013
Upon emerging from the ribosome exiting tunnel, polypeptide folding occurs immediately with the assistance of both ribosome-associated and free chaperones. While many chaperones known to date are dedicated folding catalysts, recent studies have revealed a novel chaperoning system that functions at the interface of protein biogenesis and quality control by ...
Sattler Elke - - 2013
Sentinel lymph node biopsy (SLNB) is commonly recommended for patients with primary Merkel cell carcinoma (MCC). However, it is critically discussed whether survival rates improve by SLNB in MCC patients in general or in subgroups of higher risk (e.g. with primary tumor size >1 cm). The present study correlates clinical data, ...
Reid Jennifer N S - - 2013
PROBLEM: Medical problems of most importance to reproductive health of women differ to some extent between the developed world and resource-disadvantaged countries. Nevertheless, many share a common link in microbial involvement. METHOD OF STUDY: A review of the peer-reviewed literature on microbiota, probiotics, and reproductive health. RESULTS: Indigenous and probiotic ...
Lin Tzu-Pin - - 2013
A duel between lone pairs: A telluronium cation has been successfully installed in the coordination sphere of a palladium(II) complex. Despite the presence of a lone pair centered on the group 16 element, the telluronium ion acts as a Z-ligand and accepts a d-electron pair from the palladium atom.
Zhang Haojun - - 2013
Microbial bioproduction processes of 2-phenylethanol, an important rose-like flavor and fragrance compound that occurs naturally in the essential oils of many flowers and plants, are hindered by the growth inhibition it exerts towards the producing microorganism, mainly yeast. We show here for the first time that glycosylation of 2-phenylethanol with ...
Albanese Francesco - - 2013
BACKGROUND: Canine subcutaneous dirofilariosis caused by Dirofilaria repens is an important cause of human dirofilariosis in the Old World. OBJECTIVES: To describe the clinical and pathological features of infestation by D. repens in dogs with cutaneous nodules and to discuss key diagnostic procedures. ANIMALS: Sixteen privately owned dogs of different breeds, ...
Rossi S - - 2013
Bluetongue (BT) was monitored in wildlife in France during two consecutive years corresponding to contrasting incidence rates in livestock: in 2008 at the peak of domestic outbreaks and in 2009 when very few outbreaks were observed. The disease status of 2 798 ruminants comprising 837 red deer (Cervus elaphus) was ...
Luzía França Eduardo - - 2013
Abstract Objective: The effects of low maternal hemoglobin levels on the immunological and nutritional components of breast milk at different maturation stages were investigated. Methods: Colostrum, transitional and mature milk were collected from 25 mothers with normal hemoglobin levels (control group) and 18 mothers with hemoglobin levels below 11 g/dL ...
Chabaud Stéphane - - 2013
The time needed to produce engineered tissue is critical. A self-assembly approach provided excellent results regarding biological functions and cell differentiation because it closely respected the microenvironment of cells. Nevertheless, the technique was time consuming for producing tissue equivalents with enough extracellular matrix to allow manipulations. Unlike L-arginine supplementation that ...
Hitzbleck Martina - - 2013
Flock-based microfluidics are created by depositing hydrophilic microfibers on an adhesive-coated substrate using an electric field. This enables the fabrication of self-powered microfluidics from one or more different kinds of fibers that form 2D and 3D flowpaths, which can wick 40 microliters of liquid per square centimeter. With this approach, ...
Kole Goutam Kumar - - 2013
An attempt has been made to design double-stranded ladder-like coordination polymers (CPs) of hemidirected Pb(II) . Four CPs, [Pb(μ-bpe)(O(2) C-C(6) H(5) )(2) ]⋅2H(2) O (1), [Pb(2) (μ-bpe)(2) (μ-O(2) C-C(6) H(5) )(2) (O(2) C-C(6) H(5) )(2) ] (2), [Pb(2) (μ-bpe)(2) (μ-O(2) C-p-Tol)(2) (O(2) C-p-Tol)(2) ]⋅ 1.5 H(2) O (3) and [Pb(2) (μ-bpe)(2) ...
Zheng Cai-Jun - - 2013
The exact hosts for F-P hybrid WOLEDs have been first demonstrated following a new design strategy for blue fluorophors with small singlet-triplet splitting. Two novel compounds DPMC and DAPSF exhibit efficient blue fluorescence, high triplet energies and good conductivities. These merits allow us to use new simplified device designs to ...
Sacchetti Cristiano - - 2013
The investigation of nanoparticle protein corona, the shell of plasma proteins formed around nanoparticles immediately after they enter the bloodstream, is a benchmark in the study of the applications of nanoparticles in all fields of medicine, from pharmacology to toxicology. We report the first investigation of the protein corona adsorbed ...
Kucukgoz Gulec Umran - - 2013
Abstract Objective: To compare clinical and laboratory findings between the early-onset preeclampsia (EOP) and late-onset preeclampsia (LOP). Methods: This prospective longitudinal study was performed at a tertiary referral university clinic. All patients meeting the inclusion criteria were divided into two groups, the EOP group and the LOP group, according to ...
Tognetti Celia - - 2013
Xanthophyllomyces dendrorhous (Phaffia rhodozyma) yeasts are biotechnologically exploited as a natural source of astaxanthin for aquaculture. Based on results of recent studies, it has become clear that this species possesses a greater genetic variability generating the necessity to uncover it and assess its potential for the astaxanthin industry. However, difficulties ...
Huguet A - - 2013
AIMS: Resistance to fluoroquinolones is partially the result of a decrease in drug accumulation in Escherichia coli through different mechanisms. However, the variable contribution of these mechanisms with respect to different fluoroquinolones is poorly investigated. Therefore, the current study aimed to compare the contribution of resistance attributed to efflux-mediated mechanisms ...
Gardner Lidia A - - 2013
The one-carbon cycle is composed of four major biologically important molecules: methionine (L-Met), S-Adenosylmethionine (SAM), S-adenosylhomocysteine (SAH), and homocysteine (Hcy). In addition to these key metabolites, there are multiple enzymes, vitamins, and co-factors that play essential roles in the cascade of the biochemical reactions that convert one metabolite into another ...
Altmeppen Hermann Clemens - - 2013
The cellular prion protein (PrP(C) ) plays important roles in neurodegenerative diseases. First of all, it is the well-established substrate for the conformational conversion into its pathogenic isoform (PrP(S) (c) ) giving rise to progressive and fatal prion diseases. Moreover, several recent reports highlight important roles of PrP(C) in other ...
Singhal Sonal - - 2013
High-throughput sequencing (HTS) is revolutionizing biological research by enabling scientists to quickly and cheaply query variation at a genomic scale. Despite the increasing ease of obtaining such data, using these data effectively still poses notable challenges, especially for those working with organisms without a high-quality reference genome. For every stage ...
Zhou Han - - 2013
Fast flexible electronics operating at radio frequencies (>1 GHz) are more attractive than traditional flexible electronics because of their versatile capabilities, dramatic power savings when operating at reduced speed and broader spectrum of applications. Transferrable single-crystalline Si nanomembranes (SiNMs) are preferred to other materials for flexible electronics owing to their unique ...
Fischer Dennis - - 2013
1-Hydroxy-5-aminotetrazole (1), which is a long-desired starting material for the synthesis of hundreds of new energetic materials, was synthesized for the first time by the reaction of aqueous hydroxylamine with cyanogen azide. The use of this unique precursor was demonstrated by the preparation of several energetic compounds with equal or ...
Wang Yu - - 2013
High-pressure atom transfer radical polymerization (ATRP) of n-butyl acrylate (BA) is performed in acetonitrile (MeCN) with Cu(I) Br/TPMA [TPMA: tris(2-pyridylmethyl)-amine] as the catalyst up to 5 kbar. Increasing either pressure or temperature significantly enhances the rate of polymerization, while retaining control over the polymerization. The polymerizations under high pressure could ...
Belgardt Christian - - 2013
We present a case study about inkjet printing as a tool for molecular patterning of silicon oxide surfaces with hydrophobic functionality, mediated by n-octadecyltrichlorosilane (OTS) molecules. In contrast to state-of-the-art techniques such as micro contact printing or chemical immersion with subsequent lithography processes, piezo drop-on-demand inkjet printing does not depend ...
Tong Lianming - - 2013
The electromagnetic (EM) coupling between metal nanoparticles (NPs) is of essential importance in nanoplasmonic systems, leading to a variety of fundamental studies and practical applications. The successive investigations in this field not only bring forward surprising optical effects in nanoplasmonics, but also allow revealing other novel chemical/physical properties in relevant ...
Thomas Martin - - 2013
We review several methods for the calculation of vibrational spectra from ab initio molecular dynamics (AIMD) simulations and we present a new implementation in the trajectory analyzer TRAVIS. In particular, we show mass-weighted power spectra, infrared spectra, and Raman spectra with corresponding depolarization ratios, which are based on time-correlation functions ...
Yu Young-Sang - - 2013
Vortex structures in soft magnetic nanodisks are highly attractive due to their scientific beauty and potential technological applications. Here, we experimentally demonstrated the resonant amplification of vortex oscillations by application of simple coherent field pulses tuned to optimal width and time intervals. In order to investigate vortex excitations on the ...
Hong Bo-Han - - 2013
SCOPE: Invadopodia are actin-rich membrane protrusions of tumor cells that are thought to initiate the local migration and invasion during cancer metastasis. The blockade of invadopodia-associated proteins has been reported as a promising approach for prevention of tumor metastasis. The aim of this study was to investigate the modulatory effects ...
Sachan R - - 2013
Reduced degradation (oxidation) of silver nanoparticles (NPs) is achieved by contacting Ag with immiscible Co NPs. The relative decay of the plasmon peak (plot) shows that pure Ag NPs (blue dashed curve) decay by 25% in ca 20 days, whereas AgCo NPs last about 10 times longer, requiring nearly five ...
Zhang Wenbin - - 2013
A superhydrophobic-superoleophilic PVDF membrane is fabricated via an inert solvent-induced phase inversion for effective separation of both micrometer and nanometer-sized surfactant-free and surfactant-stabilized water-in-oil emulsions solely driven by gravity, with high separation efficiency (oil purity in filtrate after separation > 99.95 wt%) and high flux, which is several times higher ...
Etzel M - - 2013
In addition to ultrasound, elastography is available for evaluation of thyroid nodules for several years. Aim of this study was to verify a statistically significant correlation between palpation and elastography as well as between scintigraphy and elastography, respectively. Patients, methodes: 97 solitary thyroid nodules in 67 women (mean age 63.0 ...
Lo Zito L - - 2013
Abstract Purpose: To evaluate various factors that potentially influence the fetal body volume (FBV) measurement using magnetic resonance imaging (MRI) and to analyse whether the technique of measurement could be simplified. Materials and Methods: In 20 singleton pregnancies scheduled for a planned delivery, FBV measurements were performed by two independent ...
Carey Alison J - - 2013
PROBLEM: Chlamydia trachomatis genital tract infections are easily treated with antibiotics; however, the majority of infections are asymptomatic and therefore untreated, highlighting the need for a vaccine. Because most infections are asymptomatic, vaccination could potentially be administered to individuals who may have an acute infection at that time. In such ...
Ashraf Raja Shahid - - 2013
A series of low bandgap indacenodithiophene polymers is purified by recycling SEC in order to isolate narrow polydispersity fractions. This additional purification step is found to have a significant beneficial influence on the solar cell performance and the reasons for this performance increase are investigated.
Qu Shuanglin - - 2013
Polyols pathway probed: Density functional theory computations reveal that the methyltrioxorhenium-catalyzed deoxydehydration of polyols follows the pathway C, which is energetically more favorably than the previously proposed pathways A and B. In addition to serving as solvent/reductant, the alcohol also acts as a shuttle to greatly facilitate various hydrogen-transfer steps.
Pratsinis Anna - - 2013
Silver nanoparticles (nanosilver) are broadly used today in textiles, food packaging, household devices and bioapplications, prompting a better understanding of their toxicity and biological interactions. In particular, the cytotoxicity of nanosilver with respect to mammalian cells remains unclear, because such investigations can be biased by the nanosilver coatings and the ...
Gandjour Afschin - - 2013
Health interventions have two major downstream cost effects, savings from reducing morbidity and expenditures from living longer. Anecdotal evidence suggests that many economic evaluations, particularly those that are trial-based, do not include health care costs from living longer. The purpose of this study was therefore to determine the bias from ...
Mai Thanh Duc - - 2013
A detailed study on the effect of the buffer concentration and the magnitude of the superimposed hydrodynamic flow on separation performance in capillary zone electrophoresis with contactless conductivity detection was carried out with capillaries of 10, 25 and 50 μm internal diameter. It was confirmed that capillaries of narrow internal ...
Scorgie Fiona - - 2013
Sex workers in east and southern Africa are exposed to multiple occupational health and safety risks. Detailed understanding of barriers to accessing care would optimise design of improved services for this population. In this study, trained sex workers conducted 55 in-depth interviews and 12 focus group discussions with 106 female, ...
Shimamura Junichi - - 2013
ABSTRACT: A 78-year-old man, who had previously undergone coronary artery bypass graft surgery, was admitted to our department for treatment of a distal aortic arch aneurysm. A total aortic arch replacement with a patent left internal thoracic artery (LITA) graft was successfully performed without cardiac ischemic or neurological complications. Use ...
Hoekzema Elseline - - 2013
Spontaneous fluctuations can be measured in the brain that reflect dissociable functional networks oscillating at synchronized frequencies, such as the default mode network (DMN). In contrast to its diametrically opposed task-positive counterpart, the DMN predominantly signals during a state of rest, and inappropriate regulation of this network has been associated ...
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