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Results 601 - 650 of 3299
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Adum Gilbert Baase - - 2013
There is a lack of quantitative information on the effectiveness of selective-logging practices in ameliorating effects of logging on faunal communities. We conducted a large-scale replicated field study in 3 selectively logged moist semideciduous forests in West Africa at varying times after timber extraction to assess post logging effects on ...
Knickmeyer Rebecca C - - 2013
Studies in adolescents and adults have demonstrated that polymorphisms in putative psychiatric risk genes are associated with differences in brain structure, but cannot address when in development these relationships arise. To determine if common genetic variants in disrupted-in-schizophrenia-1 (DISC1; rs821616 and rs6675281), catechol-O-methyltransferase (COMT; rs4680), neuregulin 1 (NRG1; rs35753505 and ...
Rana Tanmoy - - 2013
Arsenic is one of the most hazardous substances in the environment known to cause toxicity in multiple organs. Cell adhesion, morphological alterations, cell proliferation, terminal deoxyuridine triphosphate nick-end labeling (TUNEL) and caspase-3/CPP32 fluorometric protease assay were important biomarkers to assess apoptosis in cells. This study aimed to evaluate arsenic-induced apoptosis ...
Lin Laiyi - - 2013
Adhesive micropattern arrays permit the continuous monitoring and systematic study of the behavior of spatially confined cells of well-defined shape and size in ordered configurations. This technique has contributed to defining mechanisms that control cell polarity and cell functions, including proliferation, apoptosis, differentiation and migration in two-dimensional cell culture systems. ...
Tsang Pamela S - - 2013
The research examines the structural bottleneck account and the resource account of the substantial dual-task deficits among older adults. Procedures from two common dual-task methodologies-the psychological refractory period and the relative-priority manipulation-were used to encourage maximization of the joint performance. Performance and time-sharing strategies from subjects between the ages of ...
Friederici Angela D - - 2013
Learning takes place throughout lifetime but differs in infants and adults because of the immaturity of the PFC, a brain region responsible for cognitive control. To test this hypothesis, adults were investigated in a language learning paradigm under inhibitory, cathodal transcranial direct current stimulation over PFC. The experiment included a ...
Kirkness Ewen F - - 2013
There is increasing evidence that the phenotypic effects of genomic sequence variants are best understood in terms of variant haplotypes rather than as isolated polymorphisms. Haplotype analysis is also critically important for uncovering population histories, and for the study of evolutionary genetics. Although the sequencing of individual human genomes to ...
Wang Yu-Jing - - 2013
OBJECTIVE: The angiotensinogen (AGT) gene M235T polymorphism has been reported to be associated with myocardial infarction (MI), but previous studies have been inconsistent. The present study aimed at assessing the association of M235T polymorphism in the AGT gene with MI using a meta-analysis. METHODS: We retrieved literature in Google Scholar, ...
Hansel David - - 2013
Persistent activity in cortex is the neural correlate of working memory (WM). In persistent activity, spike trains are highly irregular, even more than in baseline. This seemingly innocuous feature challenges our current understanding of the synaptic mechanisms underlying WM. Here we argue that in WM the prefrontal cortex (PFC) operates ...
Sears Nancy - - 2013
OBJECTIVE: /st>Incidence of adverse events (AEs) among home care patients and preventability ratings were estimated. Risk factors, AE types and factors associated with AEs were identified. DESIGN: /st>This study used a stratified, randomized sample of home care patients discharged in the fiscal year 2004/05. Trained nurse reviewers completed retrospective chart ...
Melot Brent C - - 2013
To meet the growing global demand for energy while preserving the environment, it is necessary to drastically reduce the world's dependence on non-renewable energy sources. At the core of this effort will be the ability to efficiently convert, store, transport and access energy in a variety of ways. Batteries for ...
Ehlert Gregory John - - 2013
Low interface strength is a persistent problem in composite materials and cascades to limit a variety of bulk material properties such as lamina shear strength. Whiskerization has long been pursued as a method to reinforce the interphase and improve both the single fiber interface strength as well as the bulk ...
Crespo María I - - 2013
ssRNA can interact with dendritic cells (DCs) through binding to TLR7, inducing secretion of proinflammatory cytokines and type I IFN. Triggering TLR7 enhances cross-priming of CD8(+) T cells, which requires cross-presentation of exogenous Ag to DCs. However, how TLR triggering can affect Ag cross-presentation is still not clear. Using OVA ...
Zhang Jinzhu - - 2013
A new twist: A one-pot nitrous acid free, diazonium-free, and transition-metal-free variation of the Fischer indole synthesis has been developed. Condensation of quinone monoketals and aliphatic hydrazine hydrochlorides afforded indoles via intermediate alkylaryldiazenes. This method will complement the classical Fischer indole synthesis by providing indoles in two steps from widely ...
Fulgoni Victor L VL - - 2013
ABSTRACT: BACKGROUND: Avocados contain monounsaturated fatty acids (MUFA) dietary fiber, essential nutrients and phytochemicals. However, no epidemiologic data exist on their effects on diet quality, weight management and other metabolic disease risk factors. The objective of this research was to investigate the relationships between avocado consumption and overall diet quality, ...
Schwacke John H - - 2013
New insights into the intrarenal renin-angiotensin (Ang) system have modified our traditional view of the system. However, many finer details of this network of peptides and associated peptidases remain unclear. We hypothesized that a computational systems biology approach, applied to peptidomic data, could help to unravel the network of enzymatic ...
Flühe Leif - - 2013
The Sporulation Killing Factor (SKF) is a 26-residue ribosomally assembled and posttranslationally modified sactipeptide. It is produced by Bacillus subtilis 168 and plays a key role in its sporulation. As all sactipeptides, SKF contains a thioether bond, which links the cysteine residue Cys4 with the α-carbon of the methionine residue ...
Holmström Fredrik - - 2013
The hepatitis C virus (HCV) nonstructural (NS) 5A protein has been shown to promote viral persistence by interfering with both innate and adaptive immunity. At the same time, the HCV NS5A protein has been suggested as a target for antiviral therapy. In this study, we performed a detailed characterization of ...
Scholten Anouk - - 2013
Context:Pheochromocytoma crisis is a feared and potentially lethal complication of pheochromocytoma.Objective:We sought to determine the best treatment strategy for pheochromocytoma crisis patients and hypothesized that emergency resection is not indicated.Design:Retrospective cohort study (1993-2011); literature review (1944-2011).Setting:Tertiary referral center.Patients:There were 137 pheochromocytoma patients from our center and 97 pheochromocytoma crisis patients ...
Funk Stefan - - 2013
We report on a major modification of the fundamental electronic band structure of AlAs when grown as a nanoscaled wurtzite crystal. Resonant Raman spectra of individual AlAs-GaAs core-shell nanowires display a resonance between 1.83 and 2.18 eV for the AlAs E(1)(TO) phonon mode. Our findings substantiate the lowest conduction band ...
Zheng Shu-Guang - - 2013
Objective: To assess the value of contrast-enhanced ultrasound (CEUS) in the diagnosis of polypoid lesions of gallbladder (PLGs). Methods: CEUS was performed to 116 patients (mean age, 49.6 years; range, 21-80 years) with PLGs from 8 university hospitals. 9 cases of biliary sludge were proven by surgery and the remaining ...
Hochane Mazène - - 2013
Glomerulonephritis is characterized by the proliferation and apoptosis of mesangial cells (MC). The parathyroid-hormone related protein (PTHrP) is a locally active cytokine that affects these phenomena in many cell types, through either paracrine or intracrine pathways. The aim of this study was to evaluate the effect of both PTHrP pathways ...
Temel Jennifer S - - 2013
PURPOSERates of documentation of end-of-life care preferences in the medical record remain low, even among patients with incurable malignancies. We therefore conducted a two-phase study to develop and assess the effect of electronic prompts to encourage oncology clinicians to document code status in the outpatient electronic health record (EHR) of ...
Hagiwara Ken'ichi - - 2013
Transmissible spongiform encephalopathies (TSEs), or prion diseases, are fatal infectious neurodegenerative disorders. Their causative agents are prions which are composed of disease-associated forms of prion protein (PrP(Sc)). Naturally occurring cases of TSEs are found in several mammalian species including humans, sheep, goats, minks, cattle and deer. Prions are also experimentally ...
Hara E S - - 2013
This pilot study introduces a novel vibratory stimulation-based occlusal splint (VibOS) for management of pain related to temporomandibular disorders (TMD). The study sample consisted of 10 patients (mean age: 40·5 ± 13·7 years, male/female: 3/7) who were using stabilisation splints for more than 2 months prior to the study onset and still complained of ...
Wei Peifa - - 2013
Two 2 : 3 copillar[5]arene constitutional isomers were prepared and host-guest complexation of their derivatives with dicarboxylic acid sodium salts in water was investigated.
Labòria Noemi - - 2013
Making light work: Photoactivatable multivalent trisNTA compounds have been developed for the in situ labeling and assembly of His-tagged proteins in time and space. This small light-tunable lock-and-key system offers the opportunity to trigger nanomolar protein interactions, such as receptor clustering, or biotechnological applications, for example, multiprotein arrays.
Taherpour Sharmin - - 2013
The capacity of three different purine bases, viz. 2,6-bis(3,5-dimethylpyrazol-1-yl)purine, 2-(3,5-dimethylpyrazol-1-yl)adenine and 2,6-bis(2-acetyl-1-methylhydrazino)purine, to form metal-ion mediated base pairs with the native nucleobases has been examined. For this purpose, ribonucleosides derived from these bases were incorporated into an intrastrand or a 3'-terminal position of short 2'-O-methyl oligoribonucleotides and the hybridization properties ...
Schon Lew C - - 2013
In patients with Achilles tendinosis, Achilles tendon debridement can be supplemented with flexor hallucis longus tendon transfer. Outcomes have not been studied prospectively in older, sedentary, and overweight patients. Fifty-eight consecutive limbs in fifty-six consecutive older, sedentary patients with insertional or midsubstance Achilles tendinosis were enrolled prospectively and underwent the ...
Ramage Benjamin S - - 2013
Tropical forest ecosystems are threatened by habitat conversion and other anthropogenic actions. Timber production forests can augment the conservation value of primary forest reserves, but studies of logging effects often yield contradictory findings and thus inhibit efforts to develop clear conservation strategies. We hypothesized that much of this variability reflects ...
Richmond Daniel - - 2013
In all eukaryotic cells, DNA is packaged into multiple chromosomes that are linked to microtubules through a large protein complex called a kinetochore. Previous data show that the kinetochores are clustered together during most of the cell cycle, but the mechanism and the biological significance of kinetochore clustering are unknown. ...
Xiao Bin - - 2013
An unexpected C-H activation/C-C cross-coupling reaction has been found to occur between pyridine N-oxides and general nonactivated secondary and even tertiary alkyl bromides. It provides a practically useful approach for the synthesis of alkylated pyridine derivatives. Experimental observations indicated that the C-Br cleavage step involves a radical-type process. Thus, the ...
Troalen Thomas - - 2013
Arterial spin labeling has been developed and used for the quantitative and completely noninvasive assessment of myocardial perfusion in vivo. Here we propose a novel arterial spin labeling method called cine-ASL, which is based on an electrocardiogram-gated steady-pulsed labeling approach combined with simultaneous readout over the cardiac cycle using cine-fast ...
Bardonnet Karine - - 2013
ABSTRACT: We report the 30-yr history of a well-documented human case of alveolar echinococcosis, with a lung lesion at presentation followed by the discovery of a liver lesion, both removed by surgery. Subsequently, within the 13 years following diagnosis, metastases were disclosed in eye, brain and skull, as well as ...
Tam Lai-Wa - - 2013
The length of Chlamydomonas flagella is tightly regulated. Mutations in four genes, LF1, LF2, LF3 and LF4, cause cells to assemble flagella up to three times wild-type length. LF2 and LF4 encode protein kinases. Here we describe a new gene, LF5, in which null mutations cause cells to assemble flagella ...
Glemne Maria - - 2013
Background:Within the prosthetics profession, there is a lack of evidence to support many clinical practices. It is therefore important that clinicians systematically document and evaluate their daily practices.Objectives:To record preoperative characteristics and functional outcomes for patients with a lower limb amputation and to investigate variations between prosthetic users and non-prosthetic ...
Chinushi Masaomi - - 2013
Radiofrequency (RF) catheter ablation of the renal artery is therapeutic in patients with drug-refractory essential hypertension. This study was designed to examine the role of the renal autonomic nerves and of RF application from inside the renal artery in the regulation of blood pressure (BP). An open irrigation catheter was ...
Genovesi Simonetta - - 2013
AIMS: A high prevalence of prolonged QT interval duration has been observed among haemodialysis (HD) patients. The aim of this cases series was to describe the association of various risk factors with total mortality and sudden cardiac death (SCD) in this population.METHODS AND RESULTS: One hundred and twenty-two patients undergoing ...
Young Shih-Houng - - 2013
ABSTRACT An association has been observed between indoor mold contamination and lung allergy and asthma. This relationship is not fully understood. 1→3-β-Glucan is the major cell wall component of fungi and a good marker of fungi exposure. The objective was to evaluate the adjuvant effect of zymosan, a crude yeast ...
Bylund Johan - - 2013
A novel microsomal prostaglandin E synthase 1 (mPGES-1) inhibitor induced kidney injury at exposures representing less than four times the anticipated efficacious exposure in man during a 7-day toxicity study in rats. Findings consisted mainly of tubular lesions and presence of crystalline material and increases in plasma urea and creatinine. ...
Vetter Alexandra - - 2013
Adenovirus type 5 (Ad) is an efficient gene vector with high gene transduction potential, but its efficiency depends on its native cell receptors Coxsackie- and Adenovirus Receptor (CAR) for cell attachment and αvβ3/5 integrins for internalisation. To enable transduction of CAR negative cancer cell lines, we have coated the negatively ...
Schilling Kevin M - - 2013
We present a new method for fabricating three-dimensional paper-based fluidic devices that uses toner as a thermal adhesive to bond multiple layers of patterned paper together. The fabrication process is rapid, involves minimal equipment (a laser printer and a laminator) and produces complex channel networks with dimensions down to 1 ...
Almenrader Nicole - - 2013
OBJECTIVES/AIMS: To investigate whether melatonin would be an alternative drug to clonidine for performance of steal induction. BACKGROUND: Distress during induction might have a negative impact on postoperative behavior. A steal induction is a technique for smooth anesthesia induction, and clonidine has been the primary agent for this purpose. There ...
Mechem C Crawford - - 2013
Abstract Advances in the management of heart failure have led to an increasing number of patients living outside the hospital with a variety of ventricular-assist devices (VADs). These implantable pumps may be placed temporarily as a bridge to cardiac transplantation or resolution of a reversible condition, or as destination therapy ...
Soheilian Masoud M - - 2013
Abstract Purpose: To describe the course of inflammation and identify predictors of successful outcome in chronic endogenous/autoimmune uveitic patients following 25-gauge vitrectomy. Methods: In this retrospective study, charts of 74 patients (74 eyes) undergoing vitrectomy for complicated uveitis that had a minimum of 12 months follow-up were reviewed. Successful outcome ...
West Nick E J - - 2013
Patients presenting with acute coronary syndromes (ACS) remain amongst the highest-risk of all acute medical admissions. Despite significant reductions in morbidity and mortality via refinements in treatment methods in recent years, such individuals remain at a high risk of recurrent ischaemic events and death. Whilst 2012 has brought a wealth ...
Freisinger Wolfgang - - 2013
Sensory neurons with afferent axons from the kidney are extraordinary in their response to electrical stimulation. More than 50% exhibit a tonic firing pattern i.e. sustained action potential firing throughout depolarizing, pointing to an increased excitability, whereas non-renal neurons show mainly a phasic response, i.e. <5 action potentials. Here we ...
Loft Shayne - - 2013
Remembering to perform deferred actions when an event is encountered in the future is referred to as event-based prospective memory (PM). We examined whether the failure of individuals to allocate sufficient attentional resources to nonfocal PM tasks can be linked to the response demands inherent in PM paradigms that require ...
Edwards Ben J - - 2013
Muscle force production and power output in active males, regardless of the site of measurement (hand, leg, or back), are higher in the evening than in the morning. This diurnal variation is attributed to motivational, peripheral and central factors, and higher core and, possibly, muscle temperatures in the evening. This ...
Bedi Asheesh - - 2013
Both arthroscopic and open operative treatment of femoroacetabular impingement (FAI) can reproducibly relieve hip pain with correction of the underlying osseous deformity and treatment of the associated labral pathology, particularly in patients without substantial articular cartilage injury at the time of surgery.Between 75% and 90% of athletes undergoing FAI surgery ...
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