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Results 601 - 650 of 2749
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Agee Carl B - - 2013
We report data on the martian meteorite, Northwest Africa (NWA) 7034, which shares some petrologic and geochemical characteristics with known martian (SNC, i.e., Shergottite, Nakhlite, and Chassignite) meteorites, but also possesses some unique characteristics that would exclude it from the current SNC grouping. NWA 7034 is a geochemically enriched crustal ...
Ma Jun - - 2013
We report measurements and modeling of thermal conductivity in periodic three-dimensional dielectric nanostructures: silicon inverse opals. Such structures represent a three-dimensional "phononic crystal" but affect heat flow instead of acoustics. Employing the Stober method, we fabricate high quality silica opal templates that on filling with amorphous silicon, etching and recrystallizing ...
de la Cruz-Herrera Carlos Felipe - - 2013
Infection with Helicobacter pylori cytotoxin-associated gene A (CagA) positive strains is associated with the development of gastric cancer. However, some reports have failed to demonstrate an increased frequency of CagA antibodies in gastric cancer patients. We evaluated the response of IgG antibody and subclasses IgG1 and IgG2 against both, CagA ...
Buckley Benjamin R - - 2013
A cheap and reliable process for the modified Wenker cyclization to afford aziridines has been achieved using biphasic condtions for a range of aminol alcohol starting materials.
Sassolas Genevieve Marie - - 2013
Background: The thyroid is highly sensitive to the carcinogenic effect of radiation in children. We compared, in patients with and without earlier childhood radiation, the features of papillary thyroid cancer (PTC) diagnosed in later childhood through young adulthood. Methods: Patients were from the Rhone Alpes Thyroid Cancer Registry. Twenty four ...
Hoang Danh-Tai - - 2013
We study the low-temperature behavior and the phase transition of a thin film by Monte Carlo simulation. The thin film has a simple cubic lattice structure where each site is occupied by a Potts parameter which indicates the molecular orientation of the site. We take only three molecular orientations in ...
Galeote Miguel - - 2013
ABSTRACT The objective of this work was to analyze morphosyntactic development in a wide sample of children with Down syndrome (DS) (n = 92) and children with typical development (TD) (n = 92) with a mental age (MA) of 20 to 29 months. Children were individually matched for gender and MA (Analysis 1) and ...
Chang Alex C Y - - 2013
OBJECTIVE: We have recently described that Notch activates nitric oxide (NO) signaling in the embryonic endocardium. Both Notch signaling and NO signaling have been shown to be important during adult arteriogenesis. Notch has been shown to be required for remodeling of the collateral vessels, whereas NO is required for the ...
Olivares Isabel - - 2013
ABSTRACT Human immunodeficiency virus type 1 (HIV-1) persistently infected cell lines are characterized by the continuous viral production without cytopathic effect. However, it is not completely clear if this production is contributed only by viral transcription or also by new cycles of viral replication. We studied an HIV-1 persistently infected ...
Chen Yuncong - - 2013
Quick: An exogenously induced quick increase of the H(2) S concentration (80 s) in MCF-7 cells can be visualized by ratiometric imaging using a new probe (CouMC) that can target mitochondria. CouMC was constructed by combining merocyanine and coumarin fluorophores. The selective nucleophilic addition of HS(-) to the merocyanine derivative ...
Lundsgaard-Hansen B - - 2013
Parallel phenotypic divergence in replicated adaptive radiations could either result from parallel genetic divergence in response to similar divergent selection regimes or from equivalent phenotypically plastic response to the repeated occurrence of contrasting environments. In post-glacial fish, replicated divergence in phenotypes along the benthic-limnetic habitat axis is commonly observed. Here, ...
Peng Jen-Kuei - - 2013
OBJECTIVE: Community physicians have a vital role in delivering palliative care, yet their willingness and factors that influence its provision have rarely been explored. Our aims were to identify the willingness of community physicians to provide palliative care for patients with terminal cancer and to investigate the factors that influence ...
Derveni Mariliza - - 2013
Abstract The Life Marker Chip (LMC) instrument is an immunoassay-based sensor that will attempt to detect signatures of life in the subsurface of Mars. The molecular reagents at the core of the LMC have no heritage of interplanetary mission use; therefore, the design of such an instrument must take into ...
Michen Benjamin - - 2013
Ceramic filters, working on the depth filtration principle, are known to improve drinking water quality by removing human pathogenic microorganisms from contaminated water. However, these microfilters show no sufficient barrier for viruses having diameters down to 20 nm. Recently, it was shown that the addition of positively charged materials, for ...
Ma Zhiyuan - - 2013
Many psychotropic substances used either for medications or illicit recreational purposes are able to produce an increase in extracellular serotonin (5HT) in the CNS. 5HT is well known to improve mood, however, only when the levels of its release are in an appropriate range. Excessive 5HT is harmful, and will ...
Falmbigl M - - 2013
Phase relations and solidification behavior in the Ge-rich part of the phase diagram have been determined in two isothermal sections at 700 and 750 °C and in a liquidus projection. A reaction scheme has been derived in the form of a Schulz-Scheil diagram. Phase equilibria are characterized by three ternary ...
Yoon Woong - - 2013
BACKGROUND AND PURPOSE: Subarachnoid hemorrhage (SAH) may appear on computerized tomography scans after mechanical thrombectomy for acute ischemic stroke. The incidence and prognosis of this observation remain unknown. We investigated the frequency and clinical consequences of SAH after treating acute ischemic stroke with multimodal approach heavily weighted toward mechanical thrombectomy ...
Smits M M - - 2013
BACKGROUND AND AIM: The metabolic syndrome (MetS) and each of its components are strongly associated with non-alcoholic fatty liver disease (NAFLD) This has led many investigators to suggest that NAFLD is an independent component of the metabolic syndrome (MetS). We formally tested this hypothesis using Confirmatory Factor Analysis (CFA), which ...
van Poppel Mireille Nm - - 2013
OBJECTIVE: Chemerin is a novel adipokine implicated in inflammation and obesity. We hypothesized that fetal chemerin would be elevated in gestational diabetes mellitus (GDM) and correlate with fetal and maternal adiposity. DESIGN: Observational, longitudinal study SUBJECTS AND MEASUREMENTS: Fetal chemerin was measured separately in arterial and venous cord blood of ...
Boreyko Jonathan B - - 2013
Self-propelled jumping drops are continuously removed from a condensing superhydrophobic surface to enable a micrometric steady-state drop size. Here, we report that subcooled condensate on a chilled superhydrophobic surface are able to repeatedly jump off the surface before heterogeneous ice nucleation occurs. Frost still forms on the superhydrophobic surface due ...
Kristianslund Eirik - - 2013
BACKGROUND:Anterior cruciate ligament (ACL) injuries are a serious problem, with a high incidence and serious consequences. Published clinical screening tests are based on 2-legged and controlled drop jumps, but ACL injuries are known to occur in single-legged landings and sidestep cutting, where the load is predominantly distributed to a single ...
Yu Hong-Mei - - 2013
ABSTRACT Background: Although knowledge of established risk factors for Alzheimer's disease (AD) can logically contribute to the search for predictors of the progression of cognitive impairment, it has not yet been firmly established where in the cognitive impairment process these risk factors exert their effects and how to predict quantitatively ...
Scott Ian C - - 2013
Objectives. Our aim was to establish whether alcohol protects against RA development and to determine whether this effect is influenced by alcohol dose, duration and serological status through systematically reviewing the literature and undertaking a meta-analysis.Methods. We searched Medline/EMBASE (1946 to July 2012) using the terms rheumatoid arthritis.mp or arthritis, ...
Arslan Erol - - 2013
Arterial stiffness is currently the "gold standard" measure of aortic (carotid-femoral) pulse wave velocity (PWV), which is an important independent predictor of risk of developing a cardiovascular event. Gilbert's syndrome is a congenital disorder characterized by intermittent and non-hemolytic elevation of indirect bilirubin levels due to the deficiency of the ...
Rahimi Robert S - - 2013
The prevalence of nonalcoholic fatty liver disease (NAFLD) is expected to rise along with the global obesity epidemic. As NAFLD is the most common cause of chronic liver disease in the United States, it has become a major health concern. It affects all ethnicities, with the highest prevalence among the ...
Hellard E - - 2013
SUMMARY Testosterone is involved in the development and expression of physiological, morphological and behavioural traits. High levels are often associated with high infection risk and/or intensity, suggesting a trade-off between sexual traits and immunity. Classically invoked mechanisms are immunological or behavioural, i.e., testosterone increases susceptibility or resistance to parasites via ...
Takashima Tadayuki - - 2013
A quantitative PET imaging method was used to assess the in vivo kinetics of hepatobiliary and renal excretion of the breast cancer resistance protein (Bcrp) substrate (11)C-SC-62807 in mice. METHODS: Serial abdominal PET scans were collected in wild-type and Bcrp knockout (Bcrp(-/-)) mice after intravenous injection of (11)C-SC-62807. Venous blood ...
Hickey Scott E - - 2013
MTHFR polymorphism testing is frequently ordered by physicians as part of the clinical evaluation for thrombophilia. It was previously hypothesized that reduced enzyme activity of MTHFR led to mild hyperhomocysteinemia which led to an increased risk for venous thromboembolism, coronary heart disease, and recurrent pregnancy loss. Recent meta-analyses have disproven ...
Kato Shinya - - 2013
Purpose: The aim of this study was to evaluate inhibitory effects of L-ascorbic acid-2-O-phosphate-Na(2) (APS), a pro-vitamin C, combined with hyperthermia on adipogenic differentiation of mouse stromal cells, OP9. Materials and methods: OP9 preadipocytes were differentiated with serum replacement, administered with APS, and simultaneously treated with hyperthermia using a capacitive-resistive ...
Omar Faisal - - 2013
Background: Transplantation is the treatment of choice for end-stage renal disease; it increases survival and quality of life, while being more cost-effective than dialysis. It is, however, limited by the scarcity of kidneys. The aim of this paper is to investigate the fairness of the priority setting process underpinning Swedish ...
Olteanu Madalina - - 2013
Developing tools for visualizing DNA sequences is an important issue in the Barcoding context. Visualizing Barcode data can be put in a purely statistical context, unsupervised learning. Clustering methods combined with projection methods have two closely linked objectives, visualizing and finding structure in the data. Multidimensional scaling (MDS) and Self-organizing ...
Exner Armin Theodor - - 2013
Infrared (IR) sensors employing optical readout represent a promising class of devices for the development of thermographic imagers. We demonstrate an infrared radiation detection principle based on thermally tunable one-dimensional (1D) photonic crystals acting as optical filters, integrated with organic and inorganic light emitting diodes (OLEDs and LEDs, respectively). The ...
Chen Yung-Chung - - 2013
Power conversion efficiencies in excess of 7 % have been achieved with bulk heterojunction (BHJ)-type organic solar cells using two components: p- and n-doped materials. The energy level and absorption profile of the active layer can be tuned by introduction of an additional component. Careful design of the additional component is ...
Smith Phillip V - - 2013
The MBJLDA xc potential (modified Becke-Johnson exchange potential with local density approximation correlation) proposed by Tran and Blaha has been designed and shown to significantly improve the description of the fundamental energy gaps of a wide range of bulk materials. Recently we reported that combining this MBJLDA xc potential with ...
Olivan-Blázquez Bárbara - - 2013
ABSTRACT: BACKGROUND: Fibromyalgia is a prevalent chronic rheumatic disease of great clinical importance. Recent studies have found raised levels of glutamate in the insula, hippocampus and posterior cingulate cortex regions of the brains of fibromyalgia (FM) patients. This finding has led researchers to speculate about the usefulness of glutamate-blocking drugs ...
Magliulo Maria - - 2013
Anchored, biotinylated phospholipids forming the capturing layers in an electrolyte-gated organic field-effect transistor (EGOFET) allow label-free electronic specific detection at a concentration level of 10 nM in a high ionic strength solution. The sensing mechanism is based on a clear capacitive effect across the PL layers involving the charges of ...
Savukoski Tanja - - 2013
BACKGROUND: Autoantibodies to cardiac troponins (cTnAAbs) can interfere with the measurement of cardiac troponin I (cTnI) by immunoassays for the diagnosis of myocardial infarction. Therefore, we determined the cTnI binding sites and IgG subclasses of circulating cTnAAbs.METHODS: We studied epitope specificity with sandwich-type immunoassays by measuring the recovery of troponin ...
van Meijl Leonie E C - - 2013
Studies have suggested that two major milk constituents, casein and Ca, favourably affect postprandial responses. However, effects of milk on postprandial metabolism are unknown. We therefore investigated effects of using milk with a fat-containing meal on lipid and glucose responses in overweight men. To identify the constituent responsible for possible ...
Sutherland M A - - 2013
The objectives of this study were to determine: 1) the effect of castration, dehorning, or both on the physiology and behavior of 3-mo-old Holstein calves; and 2) the effectiveness of pain relief to alleviate the pain caused by castration and/or dehorning. Holstein calves (n = 80) were assigned randomly to ...
Nascimento-Carvalho Cristiana M - - 2013
Pleural effusion (PE), a complication of community-acquired pneumonia (CAP), is usually attributed to a bacterial infection. Nonetheless, viral infections have not been investigated routinely. We searched for bacterial and viral infections among 277 children hospitalized with CAP. Among these children 206 (74%) had radiographic confirmation, of whom 25 (12%) had ...
Sadoughi Golnaz - - 2013
We present an investigation on the optimisation of solid-state dye sensitized solar cells (SDSCs) comprising mesoporous tin oxide photoanodes infiltrated with poly(3-hexylthiophene-2,5-diyl) (P3HT) hole conductor and sensitized with an organic dye. We chose both the SnO(2) and P3HT for their high charge carrier mobilities and conductivities, but as a result ...
Glavind J - - 2013
Objectives: To compare the residual myometrial thickness and the size of the caesarean scar defect in single- and double-layer uterotomy closure after first elective caesarean section. Methods: A retrospective cohort study was conducted in 149 women at least six months after an uncomplicated, elective caesarean delivery. Two-dimensional transvaginal ultrasonography measures ...
Hayashi Shirley Yumi - - 2013
Left ventricular (LV) dyssynchrony is a known cause of mortality in patients with heart failure and may possibly play a similar role in patients with chronic kidney disease (CKD) in whom sudden death is one of the most common and as yet not fully explained cause of death. LV synchronicity ...
Richardson Jeremy O - - 2013
We report a combined theoretical and experimental study of the water octamer-h16. The calculations used the ring-polymer instanton method to compute tunnelling paths and splittings in full dimensionality. The experiments measured extensive high resolution spectra near 1.4 THz, for which isotope dilution experiments and group theoretical analysis support assignment to ...
Nitta Hidetoshi - - 2013
PURPOSE: The anaphylatoxin C5a is a chemoattractant that induces leukocyte migration via C5a receptor (C5aR). There is emerging evidence that C5a is generated in the cancer microenvironment. We therefore sought C5aR expression and a direct influence of the C5a-C5aR axis on cancer cells. EXPERIMENTAL DESIGN: C5aR expression was investigated in ...
Street Robert A - - 2013
Ternary blend bulk heterojunction organic solar cells comprising either a polythiophene donor and two fullerene acceptors or two polythiophene donors and a fullerene acceptor are shown to have unique electronic properties. Measurements of the photocurrent spectral response and the open-circuit voltage show that the HOMO and LUMO levels change continuously ...
Gilbert Mary E - - 2013
Thyroid hormones (TH) are essential for brain development and iodine is required for TH synthesis. Environmental chemicals that perturb the thyroid axis result in modest reductions in TH, yet there is a paucity of data on the extent of neurological impairments associated with low level TH disruption. This study examined ...
Tang Weijun - - 2013
One of four: A chiral phosphoric acid enables asymmetric hydrogenation of imines with an achiral iridium catalyst by virtue of noncovalent interactions. These interactions lead to the formation of a highly organized ternary complex, and the hydride is transferred highly enantioselectively.
Guo Kun - - 2013
Perineural invasion (PNI) is one of the most important causes of local recurrence and poor survival in pancreatic cancer. However, the exact mechanism of PNI is still not clear. In this study, we sought to identify the reciprocal signaling interactions between sympathetic nerves and pancreatic cancer cells and the underlying ...
Coyle Jason P - - 2013
Several copper(I) iminopyrrolidinates have been evaluated by thermogravimetric analysis (TGA) and solution based (1)H NMR studies to determine their thermal stability and decomposition mechanisms. Iminopyrrolidinates were used as a ligand for copper(I) to block previously identified decomposition routes of carbodiimide deinsertion and β-hydrogen abstraction. The compounds copper(I) isopropyl-iminopyrrolidinate (1) and ...
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