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Results 451 - 500 of 2041
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Finke Aaron D - - 2012
We present an investigation of the electronic properties and reactivity behavior of electron-accepting 6,6-dicyanopentafulvenes (DCFs). The EPR spectra of the radical anion of a tetrakis(silylalkynyl) DCF, generated by Na metal reduction, show delocalization of both the charge and unpaired electron to the nitrogens of the cyano moieties and also, notably, ...
Hjalmarson Helene Victoria - - 2012
The aim of this study was to explore the development of interprofessional collaboration aiming to improve secondary prevention of osteoporosis by studying this topic expansively from the perspectives of different stakeholders. The method used was a longitudinal single case study with both qualitative and quantitative data sources. The findings elucidate ...
Cheung Carol Yim-Lui - - 2012
The retinal vasculature allows direct noninvasive visualization of the body's mircrovasculature. Because the retina and other end organs (brain and kidney) share similar anatomical features and physiological properties, the retinal vessels offer a unique and easily accessible window to study the health and disease of the human microcirculation. Advanced retinal ...
Blancafort Lluís - - 2012
Hyperconjugation and its relation with the 1,2-shift rearrangement reactivity in bicyclo[2.1.0]pentane and cyclopropane radical cations has been studied with density functional theory (PBE0/6-311G**). Hyperconjugation has been evaluated by calculating the 1H hyperfine coupling constants, atomic spin densities, and dihedral angles of β hydrogens with respect to the axes of the ...
Andreychenko A - - 2012
Application of travelling wave MR to human body imaging is restricted by the limited peak power of the available RF amplifiers. Nevertheless, travelling wave MR advantages like a large field of view excitation and distant location of transmit elements would be desirable for whole body MRI. In this work, improvement ...
Burger Ian - - 2012
Respiratory motion is a major problem in cardiac MRI. In this work, the displacement of the heart relative to the diaphragm was investigated. A subject-specific nonlinear elliptical affine model has been developed to incorporate the effect of hysteresis in motion correction. Nine healthy volunteers participated in a study in which ...
De Jesus Maria - - 2012
Objectives. To examine predictors of health care service utilization in Mexico or any other country in Latin America among the US Hispanic population. Methods. This study used data from the 2007 Pew Hispanic Healthcare Survey, a nationally representative survey of 4013 Hispanic adults. Using the Behavioral Model of Health Service ...
Wiesinger Tanja - - 2012
BACKGROUND: The Gaenslen test (GT; "squeeze test", "compression test") is characterized by pain upon lateral compression (squeezing) of the metacarpophalangeal (MCP) or metatarsophalangeal (MTP) joints. OBJECTIVES: To assess factors related to a positive GT and to explore differences in disease activity between GT+ and GT- patients. METHODS: GT was performed ...
StefaƄczyk Olaf - - 2012
We present a unique interpretation of X-ray absorption spectroscopy (XAS) spectra at Cu:K, W:L(3), and Mo:K edges of structurally related magnetic Cu(II)-[M(V)(CN)(8)](3-) compounds. The approach results in description of the structure of novel three-dimensional (3-D) Cu(II)(3)(pyz)[M(V)(CN)(8)](2)·xH(2)O, M = W (1), Mo, (2) polymers. Assemblies 1 and 2 represent hybrid inorganic-organic ...
Tomeny Theodore S - - 2012
Variability within the literature investigating typically-developing siblings of children with an autism spectrum disorder suggests that the quality of sibling outcomes may depend on specific factors. For this study, 42 parents of a child with an autism spectrum disorder and a typically- developing sibling provided data via online questionnaires. Birth ...
Maneschi Elena - - 2012
We recently demonstrated that testosterone dosing ameliorated the metabolic profile and reduced visceral adipose tissue (VAT) in a high-fat diet (HFD)-induced rabbit model of metabolic syndrome (MetS). We studied the effects of HFD and in vivo testosterone dosing on VAT function, and the adipogenic capacity of rabbit preadipocytes isolated from ...
Spinner David - - 2012
Objective.  To describe a technique for and assess accuracy of ultrasound-guided supraorbital, infraorbital, and mental nerve injections in a cadaveric model. Prior studies have shown that peripheral trigeminal nerve injections can be beneficial for a subgroup of patients for whom surgical treatment is not appropriate. Accurate injection is necessary to ...
Servoli E - - 2012
Hybridization of nucleic acids to microarrays is a crucial step for several biological and biomedical applications. However, the poor efficiency and resulting long incubation times are major drawbacks. In addition to diffusion limitation, back hybridization to complementary strands in solution is shown to be an important cause of the low ...
Modugno Francesmary - - 2012
Ovarian cancer is the sixth most common cancer worldwide among women in developed countries and the most lethal of all gynecologic malignancies. There is a critical need for the introduction of targeted therapies to improve outcome. Epidemiological evidence suggests a critical role for steroid hormones in ovarian tumorigenesis. There is ...
Baker Kim - - 2012
Oxidative stress has been implicated as a cause of hair cell damage after ischemia reperfusion injury, noise trauma, and ototoxic injury. Oxidative stress can induce both apoptosis or necrosis depending on the degree of exposure. To study how reactive oxygen species (ROS) interacts with hair cells, we have developed an ...
Yuan Fang-Wei - - 2012
We demonstrate that dodecanethiol monolayer passivation can significantly enhance the anode performance of germanium (Ge) nanowires in lithium-ion batteries. The dodecanethiol-passivated Ge nanowires exhibit an excellent electrochemical performance with a reversible specific capacity of 1130 mAh/g at 0.1 C rate after 100 cycles. The functionalized Ge nanowires show high-rate capability ...
Quartuccio Luca - - 2012
OBJECTIVES: To explore the efficacy in the long-term and the impact on Health Related Quality of Life (HRQOL) of infliximab in patients suffering from Takayasu's arteritis (TA). METHODS: Clinical data were retrospectively collected in 15 patients with TA. Evaluation of Medical Outcomes Study Short Form 36 (SF-36) questionnaires was made ...
Raza Rabia - - 2012
The biological significance of polyoxometalates is well renowned owing to their anticancer, antiviral and antibiotic properties. Here another therapeutic aspect of polyoxometalates has been explored as alkaline phosphatase inhibitors along with the remarked anticancer and amoebicidal properties. Synthesis and inhibitory studies of a set of seven polyoxotungstates against two major ...
Ramakrishnan Vijay R - - 2012
BACKGROUND: The frequency of endoscopic sinus surgery (ESS) appears to be increasing, and the use of image-guided surgery (IGS) in these procedures is becoming more widespread. The use of IGS in ESS and anterior skull base surgery is predicated on the notion that its ability to aid in anatomic identification ...
Veghte Daniel P - - 2012
It is currently unknown whether mineral dust causes a net warming or cooling effect on the climate system. This uncertainty stems from the varied and evolving shape and composition of mineral dust, which leads to diverse interactions of dust with solar and terrestrial radiation. To investigate these interactions, we have ...
Fahimi Jahan - - 2012
OBJECTIVE:To evaluate trends in and factors associated with computed tomography (CT) use among children presenting to the emergency department (ED) with abdominal pain.METHODS:This study was a cross-sectional, secondary analysis of the National Hospital Ambulatory Medical Care Survey data from 1998 to 2008. We identified ED patients aged <19 years with ...
Jason Janine - - 2012
BACKGROUND:Invasive Cronobacter infection is rare, devastating, and epidemiologically/microbiologically linked to powdered infant formulas (PIFs). In 2002-2004, the US Food and Drug Administration advised health care professionals to minimize PIF and powdered human milk fortifier (HMF)'s preparation, feeding, and storage times and avoid feeding them to hospitalized premature or immunocompromised neonates. ...
Gautam Rupali - - 2012
Background: The great toe helps in maintaining body balance during standing, walking, running, dancing, and so on.Case Description and Methods: A 22 year-old female patient reported to the department, one month after losing her left hallux in a road accident. Anatomical reconstruction was performed with distraction osteogenesis. The prosthesis was ...
Körmendy Dezsö - - 2012
OBJECTIVE: The importance of the co-stimulatory molecules CD28 and CTLA-4 in the pathological mechanism of Rheumatoid Arthritis (RA) is well documented by genetic associations and the successful clinical application of CTLA-4Ig for the treatment of RA. Here we have investigated the role of the CD28/CTLA-4 axis for the local application ...
Shum C K Y - - 2012
Neuroblastoma (NB) is an embryonal tumor and possesses a unique propensity to exhibit either a spontaneous regression or an unrestrained growth. However, the underlying mechanism for this paradoxical clinical outcome remains largely unclear. Quantitative RT-PCR analysis on 102 primary NB tumors revealed that lower Krüppel-like factor 4 (KLF4) expression is ...
Harrison Denise - - 2012
The use of oral sucrose has been the most extensively studied pain intervention in newborn care to date. More than 150 published studies relating to sweet-taste-induced calming and analgesia in human infants have been identified, of which 100 (65%) include sucrose. With only a few exceptions, sucrose, glucose, or other ...
Saum Kai-Uwe - - 2012
OBJECTIVES: To develop and evaluate a modification of the Fried frailty assessment using population-independent cutpoints and to determine frailty prevalence of community-dwelling elderly people in a German population. DESIGN: Cross-sectional analysis of 8-year follow-up data of a large German cohort study. SETTING: Saarland, Germany. PARTICIPANTS: Three thousand one hundred twelve ...
Gan Xuetao - - 2012
We demonstrate a large enhancement in the interaction of light with graphene through coupling with localized modes in a photonic crystal nanocavity. Spectroscopic studies show that a single atomic layer of graphene reduces the cavity transmission by more than a factor of one-hundred, while also sharply reducing the cavity quality ...
Huang Miao - - 2012
Bis(phosphine) pincer-Pd complex-catalyzed asymmetric addition of diarylphosphines to N-tosylimines was developed for the synthesis of chiral phosphine sulfides with high stereoselectivities (up to 96% ee) under mild conditions.
Derbal-Wolfrom L - - 2012
Preventing tumor neovascularisation is one of the strategies recently developed to limit the dissemination of cancer cells and apparition of metastases. Although these approaches could improve the existing treatments, a number of unexpected negative effects have been reported, mainly linked to the hypoxic condition and the subsequent induction of the ...
Li Zhong-Yi - - 2012
With formate as ligand, two 1-D 3d-4f compounds (linear and zigzag) based on pyramidal {TbCu(4)} unit were obtained. Chair-like [(H(2)O)(2)(ClO(4))(2)](2-) clusters and μ(5)-η(1):η(4) bridging mode of formate were observed in the linear one which also displays slow relaxation of the magnetization.
Park Seung-Jung - - 2012
PURPOSE OF REVIEW: To address the clinical benefit of fractional flow reserve (FFR) measurement in stable coronary artery disease (CAD) patients. RECENT FINDINGS: The efficacy of revascularization in patients with stable CAD has been debatable. However, there has been consensus that revascularization for ischemic-producing lesions may improve clinical outcomes. FFR ...
Pazianas Michael - - 2012
Ocular inflammatory reactions have been described in patients on bisphosphonate treatment. We estimated the incidence rate of ocular inflammation at 3 and 12 months in patients treated for osteoporosis using a register based cohort linked to prescription data (hospitals and private practice) and hospital data. Between Jan 1, 1997 and ...
De Conti Laura - - 2012
One of the fundamental issues in RNA splicing research is represented by understanding how the spliceosome can successfully define exons and introns in a huge variety of pre-mRNA molecules with nucleotide-precision. Since its first description, researchers in this field have identified and characterized many fundamental elements and players capable of ...
Madhusudan Puttaswamy - - 2012
A facile template-free hydrothermal approach is developed to synthesize hierarchical flower-like graphene-Bi(2)O(2)CO(3) microcomposites. The as-prepared samples were systematically characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, Fourier transform infrared spectroscopy, N(2) adsorption-desorption and UV-visible diffuse reflectance spectroscopy. The photocatalytic activity of the as-prepared ...
Gordon Bruce R - - 2012
BACKGROUND: Intradermal skin testing is a useful allergy diagnostic tool. Although considered safe when properly performed, systemic reactions have been reported. This is the first large, prospective study to record and evaluate all systemic reactions from intradermal skin testing (IDT) to inhalant or food antigens. METHODS: A 24-month prospective study ...
Maluenda Gabriel - - 2012
VIABAHN® endoprosthesis (Gore & Associates, Flagstaff, AZ), a nitinol self-expanding polytetrafluoroethylene (PTFE) lined stent, has demonstrated utility for percutaneous treatment of chronic occlusive disease involving the superficial femoral artery. In a case series communication we aimed to describe the feasibility of a PTFE-lined stent for percutaneous treatment of conditions other ...
Russell Bradly - - 2012
Abstract Objective: To assess changes in mandibular third molar angulation during orthodontic treatment in subjects having either first or second premolars or neither removed. Materials and Methods: In a retrospective study approved by the institutional review board, right and left mandibular third molar angulations were compared to the vertical axis ...
Minns Robert A - - 2012
BACKGROUND:Retinal hemorrhages (RHs) occur in inflicted traumatic brain injury (ITBI), accidental traumatic brain injury (ATBI), and some medical conditions, although the reported number, distribution, type, and frequency vary greatly between these different etiologies. We hypothesize that these RH characteristics reliably help to distinguish ITBI from ATBI and nontraumatic etiologies.METHODS:A 6-year ...
Sperschneider Jana - - 2012
MOTIVATION: Laboratory RNA structure determination is demanding and costly and thus, computational structure prediction is an important task. Single sequence methods for RNA secondary structure prediction are limited by the accuracy of the underlying folding model. On the other hand, if a structure is supported by a family of evolutionarily ...
Levitzki Alexander - - 2012
With the manufacture of imatinib, researchers introduced tyrosine kinase inhibitors (TKIs) into the clinical setting in 2000 to treat cancers; approximately fifteen other TKIs soon followed. Imatinib remains the most successful agent, whereas all the others have had modest effects on the cancers that they target. The current challenge is ...
Gabriele Bartolo - - 2012
A variety of readily available 1-mercapto-3-yn-2-ols 5 were conveniently converted into the corresponding thiophenes 6 in good to high yields in MeOH as the solvent at 50-100 °C in the presence of catalytic amounts (1-2 %) of PdI2 in conjunction with KI (KI:PdI2 molar ratio = 10). The catalyst could ...
Loizzi Michele - - 2012
Subglottic haemangioma (SGH) is a rare, benign tumour in children, which is potentially life-threatening because of airway obstruction. We report the case of a full-term 2-month-old infant girl admitted to our institution with stridor, dyspnoea and oxygen desaturation caused by a SGH and treated with propranolol. Neck-chest computed tomography (CT) ...
Kureck Ilka M - - 2012
Inbreeding can lead to the expression of deleterious recessive alleles and to a subsequent fitness reduction. In Hymenoptera, deleterious alleles are purged in haploid males moderating inbreeding costs. However, in these haplodiploid species, inbreeding can result in the production of sterile diploid males. We investigated the effects of inbreeding on ...
Stewart Mary - - 2012
The present study reports on a new vocal emotion recognition task and assesses whether people with autism spectrum conditions (ASC) perform differently from typically developed individuals on tests of emotional identification from both the face and the voice. The new test of vocal emotion contained trials in which the vocal ...
Eshraghi Adrien A - - 2012
This review covers the most recent clinical and surgical advances made in the development and application of cochlear implants (CIs). In recent years, dramatic progress has been made in both clinical and basic science aspect of cochlear implantation. Today's modern CI uses multi-channel electrodes with highly miniaturized powerful digital processing ...
Maskatia Shiraz A - - 2012
OBJECTIVES: Evaluate the incidence of various morphologic types of congenital AS, and the association between valve morphology and long-term outcomes, including repeat BAV, AVR, and death/transplant. BACKGROUND: Reports on long-term outcomes have low agreement on the influence of morphologic type. METHODS: We queried our institutional database and hospital billing records ...
Duijts Saskia F A - - 2012
PURPOSEThe purpose of our study was to evaluate the effect of cognitive behavioral therapy (CBT), physical exercise (PE), and of these two interventions combined (CBT/PE) on menopausal symptoms (primary outcome), body image, sexual functioning, psychological well-being, and health-related quality of life (secondary outcomes) in patients with breast cancer experiencing treatment-induced ...
Chen Tong - - 2012
Two kinds of core-shell structured multifunctional nanocarriers of gold nanoclusters (Au NCs) as core and folate (FA)-conjugated amphiphilic hyperbranched block copolymer as shell based on poly(L-lactide) (PLA) inner arm and FA-conjugated sulfated polysaccharide (GPPS-FA) outer arm (Au NCs-PLA-GPPS-FA) were synthesized for targeted anticancer drug delivery. The structure and properties of ...
Van De Water Thomas R - - 2012
This review presents some of the major historical events that advanced the body of knowledge of the anatomy of the inner ear and its sensory receptors as well as the biology of these receptors that underlies the sensory functions of hearing and balance. This knowledge base of the inner ear's ...
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