Search Results
Results 451 - 500 of 2497
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Naïli Houcine - - 2012
A series of double dihydromethylpiperazinediium metallic sulfates [H(2)mpz]M(II)(SO(4))(2)·nH(2)O (mpz = 2-methylpiperazine, C(5)H(12)N(2)) are prepared by slow evaporation using a racemic (R/S)-mpz (for , ) or enantiopure R-mpz (for ), S-mpz (for ) and sulfates of Cu(II) (for ), Fe(II) (for , ), Co(II) (for ) and Zn(II) (for , , ...
Pallet N - - 2012
Adaptive responses to hypoxia, including hypoxia-inducible factor signaling, allow the cell to satisfy its basal metabolic demand and avoid death, but these responses can also be deleterious by promoting inflammation, cell dedifferentiation and fibrogenesis. Therefore, targeting hypoxia constitutes a promising therapeutic avenue. Recombinant human erythropoietin (rhEPO) appeared as a good ...
Kaplan Tony - - 2012
A model of intervention at the interface and for the in-patient phase for adolescents with severe mental health crises was developed to reduce length of stay while maintaining quality of service consonant with the 'recovery model'. The model is described, and discussed in the context of the limited literature on ...
Clemmesen L - - 2012
Purpose: The application of ultrasound-guidance for peripheral venous access is gaining popularity. It is possible to produce a short axis or a long axis sonographic view of the target vessel and apply an out-of-plane or in-plane needle tip approach. Our aim was to present the dynamic needle tip positioning technique ...
Leheta Tahra - - 2012
Abstract Background: Rejuvenation of the lower face can be challenging and no single modality can accomplish all its complex events. Patients and methods: This 18 month study included 24 female patients with a primary complaint of lower face aging signs. They were randomly allocated to either group A who received ...
Zerbetto Mirco - - 2012
In this work we address the description of the dynamics of cyclodextrins in relation with nuclear magnetic resonance (NMR) relaxation data collected for hydroxymethyl groups. We define an integrated computational approach based on the definition and parameterization of a stochastic equation able to describe relevant degrees of freedom affecting the ...
Wilbrink Maarten Hotse - - 2012
A previously identified sterol catabolic gene cluster is widely dispersed among actinobacteria, enabling them to degrade and grow on naturally occurring sterols. We investigated the physiological roles of various genes by targeted inactivation in mutant RG32 of Rhodococcus rhodochrous, which selectively degrades sterol side chains. The ltp3 and ltp4 deletion ...
Biedermann Peter H W - - 2012
Insect fungus gardens consist of a community of interacting microbes that can have either beneficial or detrimental effects to the farmers. In contrast to fungus-farming ants and termites, the fungal communities of ambrosia beetles and the effects of particular fungal species on the farmers are largely unknown. Here we used ...
Schlich Karsten - - 2012
The widespread use of silver nanoparticles (Ag-NPs), for example, in textiles and cleaning products, means that they are likely to reach the environment via biosolids or the effluent from wastewater treatment plants. The aim of the present study was to determine the ecotoxicity of Ag-NPs in the earthworm reproduction test ...
Gutiérrez-Mercado Yanet K - - 2012
It has been demonstrated that the exposure of biological systems to magnetic fields (MFs) can produce several beneficial effects: tissue recovery in chronic wounds, re-establishment of blood circulation after tissue ischemia or in necrotic tissues, improvement after epileptic episodes, angiogenesis, etc. In the current study, the effects of extremely low ...
Botezatu Andreea - - 2012
  2,5-Dimethyl-3-methoxypyrazine (DMMP) has been recently identified in both Coccinellidae-tainted (by either Coccinella septempunctata or Harmonia axyridis beetles) and untainted wines; however, little is known regarding its impact on wine aroma and flavor. The aims of this study were to obtain an accurate estimate of both the ortho- and retronasal ...
Jeong Eun Hye - - 2012
Agrammatic primary progressive aphasia (PPA-G) has been known to be associated with focal brain atrophy involving the left posterior frontal and anterior insular regions. However, aphasia can also rarely result from right hemispheric lesions in right-handed patients, so-called crossed aphasia in dextrals (CAD). We report two right-handed patients with PPA-G ...
Bañares-España Elena - - 2012
The cyanobacterium Microcystis aeruginosa forms blooms that can consist of colonies. We have investigated how M. aeruginosa acclimatizes to changing light conditions such as can occur during blooms. Three different strains were exposed to two irradiance levels: lower (LL) and higher (HL) than the irradiance-onset saturation parameter. We measured the ...
Han Hyunjoo - - 2012
The resonance energy transfer between CdSe/ZnS quantum dots (qdots) and three metallic nanoparticles (NPs) with different surface plasmon resonance (SPR) characteristics were studied. Gold, gold/silver and gold/palladium NPs were used as energy acceptors for qdots with donor emission at 570 nm. Due to the different spectral overlaps between the SPR signatures ...
Venkatesh Kartik K - - 2012
Cervical ectopy, which occurs when the columnar epithelium of the endocervical canal extends outwards into the ectocervix, has been suggested to increase the susceptibility to HIV infection in at-risk women. This study summarizes observational studies, primarily conducted in sub-Saharan Africa, that have assessed a possible causative association between cervical ectopy ...
Magro Massimiliano - - 2012
We report on the surface characterization, functionalization and application of stable water suspensions of novel surface active maghemite nanoparticles (SAMNs), characterized by a diameter of 11  2 nm and possessing peculiar colloidal properties and surface interactions. These features permitted the acquisition of titration curves and aqueous UV-Vis spectrum and ...
Lu Jiapeng - - 2012
The outcome of human immunodeficiency virus (HIV)-1 infection and course to AIDS are variable among individuals. Both chemokine receptor 5 (CCR5) and CCR2 gene polymorphisms play essential roles in the susceptibility of HIV-1 infection. To investigate the main and epistatic effects of the CCR5 promoter and CCR2-V64I polymorphisms on HIV-1 ...
Nicholas Jason D - - 2012
Nano-composite Sm(0.5)Sr(0.5)CoO(3-δ) (SSC)-Ce(0.9)Gd(0.1)O(1.95) (GDC) and La(0.6)Sr(0.4)Co(0.8)Fe(0.2)O(3-δ) (LSCF)-GDC Solid Oxide Fuel Cell (SOFC) cathodes with various infiltrate loading levels were prepared through multiple nitrate solution infiltrations into porous GDC ionic conducting (IC) scaffolds. Microstructural analyses indicated that the average SSC and average LSCF hemispherical particle radii remained roughly constant, at 25 ...
Ndemangou Brigitte - - 2012
The dichloromethane-methanol (1:1) soluble part of Calopogonium mucunoides (Fabaceae) resulted in the isolation of 10 isoflavones (4'-O-methylalpinumisoflavone, 4'-O-methylderrone, alpinumisoflavone, daidzeine, Calopogonium isoflavone A, atalantoflavone, 2',4',5',7-tetramethoxyisoflavone, 7-O-methylcuneantin, cabreuvin and 7-O-methylpseudobaptigenin) and a rotenoid (6a,12a-dehydroxydegueline). Among these, daidzeine, 7-O-methylcuneantin, atalantoflavone and 6a, 12a-dehydroxydegueline have been isolated for the first time from C. ...
Rabkin Alexander - - 2012
We demonstrate control over the orientation of PbS nanoparticles by way of directed assembly, which in turn, affects the crystal structure of alkylamine surfactants such as octadecylamine (ODA, C18H37NH2) and hexadecylamine (HDA, C16H33NH2). This directed assembly method results in the arrangement of PbS nanoparticles with well-defined epitaxial orientation on lamellar ...
Rodrigues Rafael C - - 2012
Immobilization of enzymes may produce alterations in their observed activity, specificity or selectivity. Although in many cases an impoverishment of the enzyme properties is observed upon immobilization (caused by the distortion of the enzyme due to the interaction with the support) in some instances such properties may be enhanced by ...
Negri Bruno - - 2012
PURPOSE: The aim of this study was to evaluate bone remodelling and soft tissue reactions around immediate nonocclusal loaded implants with different collar configuration in beagle dogs. MATERIAL AND METHODS: The mandibular bilateral second, third and fourth premolars of six beagle dogs were extracted. After 3 months of healing, four implants ...
Buntrock Lydia - - 2012
Organ growth depends on cell division and (or) cell growth. Here, we present a study on two organs whose growth depends entirely on cell growth, once they are formed in the embryo: Malpighian tubules and silk glands of the flour moth, Ephestia kuehniella . Between first and last larval instar, ...
Ramseier Ca - - 2012
OBJECTIVE: The aim of our investigation was to review the implementation of a comprehensive tobacco dependence education (TDE) curriculum at the Medi School of Dental Hygiene (MSDH), Bern, Switzerland, 2001-2008. METHODS: In 2001, new forms to record patients' tobacco use history and willingness to quit were created for all the ...
Hoye Thomas R - - 2012
Arynes (aromatic systems containing, formally, a carbon-carbon triple bond) are among the most versatile of all reactive intermediates in organic chemistry. They can be 'trapped' to give products that are used as pharmaceuticals, agrochemicals, dyes, polymers and other fine chemicals. Here we explore a strategy that unites the de novo ...
Peng Junjie - - 2012
Aim:  the aim of this study was to assess the effect of apical lymph node (APN) metastasis in predicting prognosis in curatively treated node-positive rectal cancer. We also investigated the relationship between APN metastasis and total number of metastatic lymph nodes. Method:  A retrospective study was performed of 510 curatively ...
Thompson Amanda L - - 2012
Introduction.  Research focusing on the long-term sequelae of diagnosis and treatment for childhood cancer suggests that although the majority of survivors are not at increased risk for psychopathology, many experience persistent problems in other domains that greatly affect quality of life (QoL). One such domain is social functioning. To date, ...
Cirstea Ion C - - 2012
Activating somatic and germline mutations of closely related RAS genes (H, K, N) have been found in various types of cancer and in patients with or developmental disorders, respectively. The involvement of the RAS signalling pathways in developmental disorders has recently emerged as one of the most important drivers in ...
Sharpe R Allan - - 2012
This review aimed to compare the predictive value between the untreated reduction in intraocular pressure (IOP) from baseline or placebo measured in early phase clinical trials to phase III and IV results for glaucoma medicines. Published, placebo-controlled, randomised, parallel, single-masked or double-masked clinical trials with at least one phase II, ...
Schröter M-A - - 2012
The direct observation of small oscillating structures with the help of a scanning electron beam is a new approach to study the vibrational dynamics of cantilevers and microelectromechanical systems. In the scanning electron microscope, the conventional signal of secondary electrons (SE, dc part) is separated from the signal response of ...
Clementoni Matteo Tretti - - 2012
Abstract Background: The concept of fractional delivery modality of the energy with both ablative and non-ablative devices is now well known and accepted as an effective method to attain significant aesthetic improvements on facial aging skin. A new multi-modal fractional ablative CO2 laser that can create, using same scanner/handpiece, deep ...
Arandjic D - - 2012
The purpose of this study was to investigate radiation doses in cerebral perfusion computed tomography (CT) examination. As a part of routine patient monitoring, data were collected on patients in terms of the skin dose and CT dose index (CTDI(vol)) and dose-length product (DLP) values. For the estimation of the ...
Cheng Jing-Jy - - 2012
Two new alkaloids, 2-demethyl-oxypalmatine (1) and 5-ethoxycarbonylsinoracutine (2), were isolated from the rhizomes of Sinomenium acutum, along with thirty-four known compounds. Cytotoxicity of the isolated compounds was examined for the MCF-7, H460, HT-29, and CEM human cancer cell lines. Dauriporphine (16), 6-O-demethylmenisporphine (17), bianfugecine (18), menisporphine (19), and 6-O-demethyldauriporphine (20) ...
Su Xin - - 2012
Two [1,2,3]triazolo[1,5-a]pyridinium salts have been prepared via a novel Cu(ii)-mediated oxidative cyclization reaction. Both water soluble compounds exhibit broad-range fluorescence emission with huge Stokes shifts as well as color tunability.
Prignano Francesca - - 2012
ABSTRACT Introduction: Fractional CO2-laser is considered a preferential method for skin resurfacing, but little is known about the molecular mechanisms whereby treatments working. In the present study we investigated the possible role of apoptosis by the sequential analysis of lesional skin after laser treatment, with special attention to power. Moreover ...
Hayashi K - - 2012
What is known and Objective:  The increasing cost of drug research and development and the decreasing number of new drugs being launched are serious issues for pharmaceutical companies. Biomarkers for predicting drug effectiveness are regarded as useful tools for combating these trends. However, the extent to which these biomarkers actually ...
Salonia Andrea - - 2012
Introduction.  It is common knowledge among researchers that erectile dysfunction (ED) is an important sentinel marker of cardiovascular and overall men's health. Aim.  Determine whether the delay of time between ED onset and seeking medical help (DSH), considered as a proxy of awareness of the importance of ED for overall ...
Renner Julie Nicole - - 2012
Modular proteins have emerged as powerful tools in tissue engineering because both the mechanical and biochemical properties can be precisely controlled through amino acid sequence. Resilin is an attractive candidate for use in modular proteins because it is well-known for having low stiffness, high fatigue-lifetime, and high resilience. However, no ...
Li Qinfan - - 2012
Plant cytochrome P450 is a key enzyme responsible for the herbicide resistance but the molecular basis of the mechanism is unclear. To understand this, four typical plant P450s and a widely resistant herbicide chlortoluron were analysed by carrying out homology modelling, molecular docking, molecular dynamics simulations and binding free energy ...
Adams K - - 2012
Aim:  Stapled transanal rectal resection (STARR) is used for patients with Obstructive Defaecation Syndrome (ODS) not responding to conservative management. Reports indicate mixed results and there are no studies publishing the long term outcome. Method:  Following full investigation, 37 patients with ODS underwent a STARR procedure by one of the ...
Lin Yu - - 2012
SUMMARY: TIBA is a tool to reconstruct phylogenetic trees from rearragement data which consists of ordered lists of synteny blocks (or genes) where each synteny block is shared with all of its homologs in the input genomes. The evolution of these synteny blocks, through rearrangement operations, is modeled by the ...
Singh Birdavinder - - 2012
This study investigates the beneficial role of lisinopril, an angiotensin converting enzyme inhibitor (ACEI) and telmisartan, an angiotensin receptor blocker (ARB), in intracerebroventricular (i.c.v.) streptozotocin (STZ) induced dementia of Alzheimer's disease (AD) type in mice. This study also aimed to explore the role of PPAR-γ in lisinopril and telmisartan mediated ...
Dąbkowska Maria - - 2012
Adsorption of human serum albumin (HSA) on mica from 0.15 M, NaCl solutions and various pH was studied using in situ streaming potential measurements, AFM imaging and XPS. Results obtained by streaming potential were consistent with AFM measurements and theoretical predictions based on the random sequential adsorption model. This allowed ...
Sasaki Hisako - - 2012
Two new prenylated flavonoids (1, 4) and two new prenylated C-methyl-flavonoids (6, 7), together with four known flavonoids (2, 3, 5, 8), were isolated from the roots of Desmodium caudatum. The structures of the new compounds were elucidated by extensive spectroscopic analyses including 1D-, 2D-NMR and MS. The antifungal activities ...
Kennedy Carrie H - - 2012
Little data exist regarding the acute assessment of blast concussion and the course of recovery in the combat zone, as most research has examined service members long after they have returned home. This manuscript examined a case series of 377 service members seen for acute concussion evaluation following medical evacuation ...
Enoch Steven - - 2012
This study outlines how mechanistic organic chemistry related to covalent bond formation can be used to rationalise the ability of low molecular weight chemicals to cause respiratory sensitisation. The results of an analysis of 104 chemicals which have been reported to cause respiratory sensitisation in humans showed that most of ...
Sun Jing - - 2012
Background: Myopia is an important cause of correctable visual impairment worldwide. Both genetic and environmental factors contribute to its development. The population of Chinese university students consists of about 30 million young people characterized by academic excellence and similar ages. To date, little is known about their refractive status. Methods: ...
Miravitlles Marc - - 2012
The new GOLD update has moved forward the principles of treatment of stable COPD by including the concepts of symptoms and risks into the decision of therapy; however, no mention of the concept of clinical phenotypes was included. It is recognized that COPD is a very heterogeneous disease and not ...
Nocentini Annalaura - - 2012
The codevelopment of delinquent behaviors and depressive symptoms from Grade 9 to 11 was investigated on an Italian sample of 518 adolescents (399 male) after the transition to high school, evaluating the time-invariant effects of past school failure and social failure and the time-varying effects of school achievement and social ...
Del Rayo Garrido María - - 2012
Immunisation with neural-derived peptides is a promising strategy in models of spinal cord (SC) injury. Recent studies have also demonstrated that the addition of glutathione monoethyl ester (GHSE) to this strategy further improves motor recovery, tissue protection and neuronal survival after SC injury. Since it is realistic to envision that ...
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