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Results 551 - 600 of 2826
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Wascher Claudia A F - - 2012
In group-living animals, it is adaptive to recognize conspecifics on the basis of familiarity or group membership as it allows association with preferred social partners and avoidance of competitors. However, animals do not only associate with conspecifics but also with heterospecifics, for example in mixed-species flocks. Consequently, between-species recognition, based ...
Elbarbary Hend A - - 2012
Autofocusing, as a simple and safe technique, was used to fractionate casein hydrolysate based on the amphoteric nature of its peptides. The antibacterial activity of casein hydrolysate and its autofocusing fractions (A1-10) was examined against Escherichia coli and Bacillus subtilis. The basic fraction A9 exhibited the highest activity with minimum ...
Westerhuis Michelle E M H - - 2012
Objective. To evaluate whether correct adherence to clinical guidelines might have led to prevention of cases with adverse neonatal outcome. Design. Secondary analysis of cases with adverse outcome in a multicenter randomized clinical trial (RCT). Setting. Nine Dutch hospitals. Population. Pregnant women with a term singleton fetus in cephalic position. ...
Widmann Gerlig - - 2012
BACKGROUND: The aim of this study was to evaluate the CT-guided stereotactic targeting accuracy for radiofrequency ablation of osteoid osteoma (OO), a small, benign but painful osseous lesion. METHODS: Patient and extremity were fixed in a vacuum cushion. The OO was targeted using an optical navigation system with a stereotactic ...
Taravati Sanaz - - 2012
Lead, mercury and cadmium concentrations were measured in muscle, liver and gill in wild and farmed Barbus sharpeyi from Shadegan Wetland (SW) and Azadegan Aquaculture Site (AAS). Significant variation in metal values were evaluated in Students' tests at p > 0.05. Results showed: In B. sharpeyi high levels of cadmium, lead, and ...
Zablotska I - - 2012
Using data from Australian Gay Community Periodic Surveys 1998-2010, we assessed the prevalence, trends and characteristics of gay men not tested for HIV. In 2010, one in eight Australian gay socially-engaged men were never tested for HIV, most of them sexually active and 56.5 % reporting unprotected anal intercourse. The proportion ...
Chen Fei - - 2012
The identification of novel cytotoxic T lymphocyte (CTL) epitopes is important to the analysis of the involvement of CD8(+) T cells in Mycobacterium tuberculosis infection as well as the development of peptide vaccines. In this study, we identified a novel CTL epitope from region of difference 11 (RD-11) encoded antigen ...
Shimizu Yoshitaka - - 2012
Heat capacities of liquid, crystal(s) and liquid-quenched glass (LQG) of room-temperature ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ([bmim][Tf(2)N]) and N-butyl-N-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide ([bmp][Tf(2)N]) were measured by adiabatic calorimetry. The melting points of [bmim][Tf(2)N] and [bmp][Tf(2)N] were 270.42 and 265.82 K, respectively. Heat capacity anomalies depending on thermal history after crystallization were observed above ...
Jiang De-En - - 2012
Is it possible to replace all the thiolates in a thiolated gold nanocluster with halogens while still maintaining the geometry and the electronic structure? In this work, we show from density functional theory that such halogen analogs of thiolated gold nanoclusters are highly likely. Using Au(25)X(18)(-) as an example, where ...
Chen P P Department of Cell Biology, University of Texas Southwestern Medical Center at Dallas, - - 2012
Heavy alcohol consumption provokes an array of degenerative pathologies but the signals that couple alcohol exposure to regulated forms of cell death are poorly understood. Using Drosophila as a model, we genetically establish that the severity of ethanol challenge dictates the type of death that occurs. In contrast to responses ...
Papp Laszlo - - 2012
This paper describes the procedure followed for noble gas measurements for litres, millilitres and microlitres of water samples in our laboratory, including sample preparation, mass spectrometric measurement procedure, and the complete calibrations. The preparation line extracts dissolved gases from water samples of volumes of 0.2 μ l to 3 l and it ...
Wang Baomin - - 2012
Silicon nanowire arrays have been shown to demonstrate light trapping properties and promising potential for next-generation photovoltaics. In this paper, we performed systematic and detailed simulation studies on the optical properties of silicon nanocone arrays as compared to nanowires arrays. Nanocone arrays were found to have significantly improved solar absorption ...
Atkins Robert - - 2012
Objective: The purpose of this study was to explore the extent to which neighborhood poverty was associated with the utilization of dental care by American adolescents. Methods: To accomplish the study goals we conducted multilevel modeling analyses of two nationally representative data sets: National Longitudinal Study of Adolescent Health (Add ...
Yoon Cindy W - - 2012
Recent studies suggest that the role of the cerebellum extends into cognitive regulation and that subcortical vascular dementia (SVaD) can result in cerebellar atrophy. However, there has been no evaluation of the cerebellar volume in the preclinical stage of SVaD. We aimed to compare cerebellar volume among patients with amnestic ...
Henken Kirsten R - - 2012
BACKGROUND: Technological developments allow for a variety of applications of video recording in health care, including endoscopic procedures. Although the value of video registration is recognized, medicolegal concerns regarding the privacy of patients and professionals are growing. A clear understanding of the legal framework is lacking. Therefore, this research aims ...
Moisan Anaïck - - 2012
Stroke, the leading cause of disability, lacks treatment beyond thrombolysis. The acute injection of human mesenchymal stem cells (hMSCs) provides a benefit which could be mediated by an enhancement of angiogenesis. A clinical autologous graft requires an hMSC culture delay incompatible with an acute administration. This study evaluates the cerebral ...
Yamazaki Takashi - - 2012
The living and working environments of spacecraft become progressively contaminated by a number of microorganisms. A large number of microorganisms have been found in the cabins of space stations, and some pathogenic microorganisms, including fungi, have been isolated. However, it is not known how the characteristics of microorganisms change in ...
Yesylevskyy Semen O - - 2012
An open-source Pteros library for molecular modeling and analysis of molecular dynamics trajectories for C++ programming language is introduced. Pteros provides a number of routine analysis operations ranging from reading and writing trajectory files and geometry transformations to structural alignment and computation of nonbonded interaction energies. The library features asynchronous ...
Nemajerova A - - 2012
Ectopic expression of defined sets of transcription factors in somatic cells enables them to adopt the qualities of pluripotency. Mouse embryonic fibroblasts (MEFs) are the classic target cell used to elucidate the core principles of nuclear reprogramming. However, their phenotypic and functional heterogeneity represents a major hurdle for mechanistic studies ...
Crawford Charles H CH - - 2012
Long spinal deformity fusions in elderly patients continue to be controversial. However, there is a growing population of elderly patients with spinal deformities that may be optimally treated by reconstructive surgery requiring a long fusion to the sacrum. This study evaluated clinical outcomes in elderly (>65) adult deformity patients who ...
Pupillo E - - 2012
BACKGROUND AND PURPOSE: Published reports on the association between amyotrophic lateral sclerosis (ALS) and trauma are controversial suggesting the need for a new case-control study done in a large population. METHODS: A case-control study was undertaken in Italy to assess this association. Cases were patients with newly diagnosed ALS from ...
Lin Shu-Yong - - 2012
In metazoans, cells depend on extracellular growth factors for energy homeostasis. We found that glycogen synthase kinase-3 (GSK3), when deinhibited by default in cells deprived of growth factors, activates acetyltransferase TIP60 through phosphorylating TIP60-Ser(86), which directly acetylates and stimulates the protein kinase ULK1, which is required for autophagy. Cells engineered ...
Janssen Petra F - - 2012
BACKGROUND: Adequate hemostatic techniques are essential for optimal intra- and postoperative results. A number of different hemostatic techniques and devices have been developed over the past few years, but which device should be preferred during laparoscopic and open abdominal procedures? METHODS: We conducted a systematic search for randomized controlled trials ...
Montes-Moreno Santiago - - 2012
Here, we report a retrospective series of 47 EBV-positive diffuse large B-cell lymphoma associated with advanced age. Histopathology allowed to the identification of different histological patterns: cases with polymorphic diffuse large B-cell lymphoma (29 cases), Hodgkin-like (8 cases) and polymorphic lymphoproliferative disorder-like (9 cases) patterns. One case was purely monomorphic ...
Blackburn J S JS Department of Pathology, Molecular Pathology Unit, Massachusetts General Hospital, Boston, MA, - - 2012
NOTCH1 pathway activation contributes to the pathogenesis of over 60% of T-cell acute lymphoblastic leukemia (T-ALL). While Notch is thought to exert the majority of its effects through transcriptional activation of Myc, it also likely has independent roles in T-ALL malignancy. Here, we utilized a zebrafish transgenic model of T-ALL, ...
Liu Yi-Zhen - - 2012
The study aims to find candidate probes of fluorescence in situ hybridization (FISH) for detection of lung cancer with bronchial brushings and to evaluate whether the accuracy of diagnosing lung cancer by cytological deviant and genetic abnormalities is greater than that of cytology alone. Centromeric enumeration probes (CEPs) for chromosomes ...
Barnes Ann Smith - - 2012
Interventions to address obesity and weight loss maintenance among African Americans have yielded modest results. There is limited data on African Americans who have achieved successful long-term weight loss maintenance. To identify a large sample of African American adults who intentionally achieved clinically significant weight loss of 10 %; to ...
Dimitrova Radosveta - - 2012
In Europe and particularly in Bulgaria, Roma represent the largest low-status minority group that is subjected to marked public intolerance and discrimination. This study examined links among Roma (N = 207) and Bulgarian (N = 399) adolescents' ethnic, familial, and religious identities as salient identity aspects for their psychological wellbeing. Results indicated that, as ...
Keenan Martine - - 2012
We report the discovery of nontoxic fungicide fenarimol (1) as an inhibitor of Trypanosoma cruzi ( T. cruzi ), the causative agent of Chagas disease, and the results of structure-activity investigations leading to potent analogues with low nM IC(50)s in a T. cruzi whole cell in vitro assay. Lead compounds ...
Yu Zhengrong - - 2012
Osteoporosis mainly involves cancellous bone, and the spine and hip, with their relatively high cancellous bone to cortical bone ratio, are severely affected. Studies of bone mesenchymal stem cells (BMSCs) from osteoporotic patients and animal models have revealed that osteoporosis is often associated with reduction of BMSCs' proliferation and osteogenic ...
Lähteenvuo Johanna J Cardiovascular Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, - - 2012
Aging is a dominant risk factor for most forms of cardiovascular disease. Impaired angiogenesis and endothelial dysfunction likely contribute to the increased prevalence of both cardiovascular diseases and their adverse sequelae in the elderly. Angiogenesis is both an essential adaptive response to physiological stress and an endogenous repair mechanism after ...
Welker Joachim - - 2012
We have measured the angular dependence of chemical bonding forces between a carbon monoxide molecule that is adsorbed to a copper surface and the terminal atom of the metallic tip of a combined scanning tunneling microscope and atomic force microscope. We provide tomographic maps of force and current as a ...
Hiralal Pritesh - - 2012
As a result of their morphology, nanowires bring new properties and the promise of performance for a range of electronic devices. This review looks into the properties of nanowires and the multiple ways in which they have been exploited for energy generation, from photovoltaics to piezoelectric generators.
Pratas Frederico - - 2012
In this work, we present a tentative step towards the efficient implementation of polarizable molecular mechanics force fields with GPU acceleration. The computational bottleneck of such applications is found in the treatment of electrostatics, where higher-order multipoles and a self- consistent treatment of polarization effects are needed. We have implemented ...
Lee Justin - - 2012
BACKGROUND: The objective of this study was to analyze a population-based database for (1) recent 9-year trends in utilization of partial cholecystectomy (PC), laparoscopic PC, and trocar cholecystostomy (TC), (2) demographics, associated diagnoses, and hospital characteristics, and (3) relevant inpatient outcomes. METHODS: Retrospective cohort analysis of the Nationwide Inpatient Sample ...
Henk Henry - - 2012
Abstract Background: Skeletal complications of malignant bone disease are common among patients with both solid tumors and multiple myeloma (MM). Zoledronic acid (ZOL; Zometa) is an intravenous bisphosphonate with proven efficacy in reducing the incidence of skeletal complications and delaying the time to a first skeletal complication. This study was ...
Rønnest Nanna Petersen - - 2012
Morphology is important in industrial processes involving filamentous organisms because it affects the mixing and mass transfer and can be linked to productivity. Image analysis provides detailed information about the morphology but, in practice, it is often laborious including both collection of high quality images and image processing. Laser diffraction ...
Xu Yanhao - - 2012
Genetic changes were investigated in two sets of independently synthesized Brasscia napus allopolyploids by the AFLP approach in the present study. We found that 1.17 % of the loci showed genetic changes following both hybridization and genome doubling in the synthesized B. napus F04J2 relative to its diploid progenitors, B. rapa ...
Cabeço Ludimila Canuto - - 2012
Stimuli during pregnancy, such as protein restriction, can affect morphophysiological parameters in the offspring with consequences in adulthood. The phenomenon known as fetal programming can cause short- and long-term changes in the skeletal muscle phenotype. We investigated the morphology and the myogenic regulatory factors (MRFs) MyoD and myogenin expression in ...
Cohen Lisa - - 2012
Consumption of sugar-sweetened beverages (SSBs) is associated with an increased risk of hypertension in cross-sectional studies. However, prospective data are limited. To examine the associations between SSBs and artificially sweetened beverages (ASBs) with incident hypertension. Prospective analysis using Cox proportional hazards regression to examine the association between SSBs and ASBs ...
Dupuy O - - 2012
The purpose of this study was to characterize the effect of a 2-week overload period immediately followed by a 1-week taper period on different cognitive processes including executive and nonexecutive functions, and related heart rate variability. Eleven male endurance athletes increased their usual training volume by 100% for 2 weeks, ...
Asmyhr Oyvind - - 2012
OBJECTIVES : The aim of this study was to describe the occurrence of risk factors for dental erosion for a group of young adults who are particularly susceptible to erosion. Another aim was to describe the awareness of erosion and distribution of risk factors according to the educational background of the ...
Lipham John C - - 2012
BACKGROUND: Sphincter augmentation with the LINX® Reflux Management System is a surgical option for patients with chronic gastroesophageal disease (GERD) and an inadequate response to proton pump inhibitors (PPIs). Clinical experience with sphincter augmentation is now available out to 4 years. METHODS: In a multicenter, prospective, single-arm study, 44 patients underwent ...
Liu Lubin - - 2012
INTRODUCTION AND HYPOTHESIS: The present study set out to modify polypropylene vaginal surgical material using porcine urinary bladder matrix (UBM) in order to improve biocompatibility. The aim was to develop a compound scaffold that induced less vaginal erosion and to evaluate host immunoreactivity to this material in vivo. METHODS: Forty-eight ...
Cayır Akın - - 2012
Concentrations of the elements were evaluated for the first time in Mytilus galloprovincialis in the Dardanelles (Canakkale Strait-Turkey). The concentration of elements were measured in samples collected in 2007, 2008 and 2009, while the concentrations of Fe and Ni were evaluated in samples taken in 2009. The maximum concentrations of ...
Qiu Huajun - - 2012
Nanoporous gold (np-Au) has shown great potential in catalysis, plasmonics, sensing, etc. In this work, by two-step dealloying a well-designed AuAgAl ternary precursor alloy, np-Au with bimodal ligament/pore size distributions is successfully fabricated. The first dealloying in HCl solution removes Al and generates a nanoporous AuAg alloy which would be ...
Grekova S P - - 2012
Rodent autonomous parvoviruses (PVs) are endowed with oncotropic properties and represent virotherapeutics with inherent oncolytic features. This work aimed to evaluate the capacity of Minute Virus of Mice (MVMp) to act as an adjuvant stimulating a mouse glioblastoma-specific immune response. MVMp was shown to induce cell death through apoptosis in ...
Shang Yuanyuan - - 2012
Spring-like carbon nanotube ropes consisting of perfectly arranged loops are fabricated by spinning single-walled nanotube films, and can sustain tensile strains as high as 285%.
Agarwal Pradeep K - - 2012
Genetic engineering of plants for abiotic stress tolerance is a challenging task because of its multifarious nature. Comprehensive studies for developing abiotic stress tolerance are in progress, involving genes from different pathways including osmolyte synthesis, ion homeostasis, antioxidative pathways, and regulatory genes. In the last decade, several attempts have been ...
Lei Yang - - 2012
An amperometric biosensor based on zinc oxide (ZnO) nanotetrapods was designed to detect l-lactic acid. The lactate oxidase was immobilized on the surface of ZnO nanotetrapods by electrostatic adsorption. Unlike traditional detectors, the special four-leg individual ZnO nanostructure, as an adsorption layer, provides multiterminal charge transfer channels. Furthermore, a large ...
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