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Results 501 - 550 of 5693
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Yang Yuanjie - - 2012
By analysis of the far-field cross-correlation function (CCF) of partially coherent optical beams, we demonstrate an implicit rule that the number of ring dislocations (dark zones) of the far-field CCF is equal to the original topological charge of an optical vortex rendered partially coherent. This novel link between an optical ...
Glozier Nicholas - - 2012
OBJECTIVE The authors evaluated management of illness, including access to specialist mental health care, among people identified by general practitioners as clinically depressed. METHODS Australian primary care practitioners recruited in 2009 completed case reports and collected self-report assessments from five to seven consecutively presenting patients whom they identified as having ...
Wang Zi - - 2012
In the clinical setting, drug resistance remains a significant obstacle for successful chemotherapy. Bcl-2/adenovirus EIB 19-kDa-interacting protein 3 (BNIP3) is a proapoptotic member of the Bcl-2 family. To address its potential as a therapeutic target for chemosensitisation, this study investigated the effect of BNIP3 expression on chemosensitivity and reversal of ...
Dobos Judit - - 2012
The possibility that endocrine factors may influence the clinical course of malignant melanoma is suggested by the superior survival data of women. In preclinical models we observed a higher rate of colony formation by human melanoma cells in male compared to female SCID mice, but only in the case of ...
Veeramani Chinnadurai - - 2012
To investigate the protective role of Cardiospermum halicacabum (C. halicacabum) leaf extract on glycoprotein metabolism in streptozotocin (STZ)-induced diabetic rats. Diabetes was induced in male albino Wistar rats by intraperitonial administration of STZ. The C. halicacabum leaf extract (CHE) was administered orally to normal and STZ-diabetic rats for 45 days. ...
Zali Aref Rasoulzadeh - - 2012
We propose a photodetector (PD) based on the internal photoemission effect over a Schottky barrier on a CMOS-compatible Si microring resonator for 1.55 μm. To analyze the device, we model the microring waveguide partially covered by a metal/silicide nanolayer, using the Z-transform method. The proposed structure benefits from the resonant-cavity-enhanced (RCE) ...
Kaushal Gur P - - 2012
Autophagy is upregulated during ischemia-reperfusion (IR)-induced and cisplatin-induced acute kidney injury (AKI). Proximal tubule-specific Atg7 knockout mice exhibited increased renal injury compared with wild-type mice following cisplatin- and IR-induced AKI. Inhibition of autophagy by chloroquine aggravated AKI, whereas upregulation of autophagy by rapamycin recovered lost renal function and histology, further ...
Takahara Shingo - - 2012
Congenital bicuspid aortic valve (BAV) is one of the most common congenital heart diseases, with a high incidence of associated valvular lesions and aortic abnormalities including aortic stenosis( AS), aortic regurgitation, aortic dilatation, and aortic dissection. Patients with BAV and AS often have a small aortic annulus. We encountered a ...
- - 2012
Council and committee structure Updating the profession's disciplinary machinery These were among matters discussed at the RCVS Council meeting held at Belgravia House in London on November 1. The President, Jacqui Molyneux, was in the chair.
Liu Wei-Dong - - 2012
Fibrosarcoma is a malignant soft tissue tumor of mesenchymal origin. Despite advances in medical and surgical treatment, patient survival rates have remained poor. According to the cancer stem cell hypothesis, tumors are comprised of heterogeneous cell populations that have different roles in tumor formation and growth. Cancer stem cells are ...
Odri Guillaume-A - - 2012
INTRODUCTION: Combining bone marrow (BM) with graft materials can stimulate bone healing. However, bone growth is not quantified in most studies, and the influence of the rate of interconnectivity of ceramics loaded with bone marrow has not yet been quantified. Here, a rabbit model of posterolateral intertransverse arthrodesis was used ...
Sakamaki Kensuke - - 2012
In a previous study, the formation and formation pathway of 6-propylbenzofuran-7-ol as an off-flavor compound formed from ascorbic acid and (E)-hex-2-enal in a test apple beverage was investigated. In the present study, elucidating the pH, temperature, and (E)-hex-2-enal and ascorbic acid concentrations that lead to the generation of 6-propylbenzofuran-7-ol in ...
Mroczek Agnieszka - - 2012
Triterpene saponins in the roots of Beta vulgaris cultivars Red Sphere, Rocket and Wodan were profiled and quantitated using reverse-phase liquid chromatography coupled with electrospray ionization mass spectrometry (HPLC-ESI/MS/MS). Results obtained indicated that the roots of all three cultivars contained 11 saponins consisting of oleanolic acid or hederagenin aglycone and ...
Boyer Andrew C - - 2012
PURPOSE: The purpose of this study was to evaluate the radiographic features of neuroendocrine carcinoma of the urinary bladder (NECB) on CT and to review the literature regarding carcinogenesis, treatment, and prognosis. METHODS: The presenting CT of patients with pathology-proven NECB were retrospectively reviewed for features including size and appearance ...
Kurlansik Stuart L - - 2012
Seasonal affective disorder is a combination of biologic and mood disturbances with a seasonal pattern, typically occurring in the autumn and winter with remission in the spring or summer. In a given year, about 5 percent of the U.S. population experiences seasonal affective disorder, with symptoms present for about 40 ...
Quevedo-Teruel Oscar - - 2012
A modified Luneburg lens based on Hamiltonian optical transformation with planar feeds is proposed in this Letter. The lens, made of conventional all-dielectric materials, does not have any kind of anisotropy. Therefore, in theory, its bandwidth of operation has no upper frequency limitations in contrast with recent designs utilizing metamaterials. ...
Le Thanh - - 2012
A low-threshold solid-state UV laser using a whispering gallery mode (WGM) resonator constructed from UV transparent crystalline material is demonstrated. Using a Ce<sup>3+</sup>:LiCaAlF<sub>6</sub> resonator, we observe broad bandwidth lasing (280-330 nm) with a low threshold intensity of 7.5×10<sup>9</sup>  W/m<sup>2</sup> and an effective slope efficiency of ∼25%. The lasing time delay dynamics in ...
Yu Jin-Gang - - 2012
This Letter presents a computational model for saliency detection in natural images. While existing approaches usually make use of low-level or high-level visual features for establishing the saliency models, our method relies on midlevel visual cues, i.e., the superpixel representation of the image. In the proposed approach, the given image ...
De Beaumont Louis - - 2012
In this review the authors discuss persistent and cumulative alterations in both cognitive and motor function after sports concussions detected with some of the newest, most sophisticated brain investigation techniques. Ranging from subclinical neurophysiological alterations in young concussed athletes to quantifiable cognitive and motor function declines in former athletes in ...
Haubitz M - - 2012
During the course of systemic lupus erythematosus (SLE) 30-90% of patients develop a renal manifestation which has proven to be decisive for morbidity and mortality. Histologically six different classes have been described leading to different treatment strategies. In mesangial proliferative lupus nephritis (class II) extrarenal manifestations determine the immunosuppressive treatment. ...
Tonosaki K - - 2012
A hybridization barrier leads to the inability of seed formation after intergeneric crossings between Brassica rapa and Raphanus sativus. Most B. rapa lines cannot set intergeneric hybrid seeds because of embryo breakdown, but a B. rapa line obtained from turnip cultivar 'Shogoin-kabu' is able to produce a large number of ...
Habenstein Birgit - - 2012
(13)C spin diluted protein samples can be produced using [1-(13)C] and [2-(13)C]-glucose (Glc) carbon sources in the bacterial growth medium. The (13)C spin dilution results in favorable (13)C spectral resolution and polarization transfer behavior. We recently reported the combined use of [1-(13)C]- and [2-(13)C]-Glc labeling to facilitate the structural analysis ...
Bagdas Deniz - - 2012
Chlorogenic acid (CGA) is a natural organic phenolic compound that is found in many plants, fruits and vegetables. CGA has beneficial bioactivities and strong therapeutic effects in inflammatory processes. CGA-rich fractions have analgesic activity but CGA has not been tested previously in neuropathic pain, which results from tissue damage, inflammation ...
Zhang Guozhu - - 2012
The purpose of this study was to retrospectively evaluate patients who had open reduction and external fixation of displaced intra-articular calcaneal fractures with supercutaneous calcaneal locking plates used as external fixators. Between October 2007 and June 2009, 25 cases were performed. According to the Sanders classification system, 17 cases were ...
Kamesh Venkatakrishnan - - 2012
To explore the effect of alcoholic extract of Bacopa monniera (AEBM) on high cholesterol diet-induced rats. The shade-dried and coarsely powdered whole plant material (Bacopa monniera) was extracted with 90% ethanol, finally filtered and dried in vacuum pump. The experimental rats were divided into 4 groups: control (group-I), Rats fed ...
Smidt Ami - - 2012
Osteonecrosis of the jaw (ONJ) is a painful condition secondary to bisphosphonate (BP) therapy. It occurs at a much higher rate in patients receiving intravenous (IV) versus oral BP treatment. BPs are prescribed in the treatment of bone diseases such as osteoporosis, multiple myeloma, cancer metastases and Paget disease. Patients' ...
Murayama Ayumi - - 2012
A 3-month-old boy was transferred to our hospital because of a cardiac tumor in the right heart, which had been prenatally diagnosed by fetal echocardiography. During the operation, the tumor was found on the Chiari's network in the right atrium. The tumor was excised and the ventricular septal defect was ...
Hyde Amanda L - - 2012
Accumulating research indicates that physical activity is motivated by automatic evaluations of physical activity. Little is known about the stability of automatic evaluations or how their dynamics impact physical activity. We tested the measurement invariance and stability of university students' (N = 164) automatic evaluations of physical activity. In addition, ...
Muniaraj M - - 2012
The vector mosquitoes of dengue and chikungunya fever, Aedes aegypti and Aedes albopictus have adapted to feed on humans and undergo larval and pupal development in natural and artificial freshwater collections. Although several studies reported, still, much information is required to understand the successful survival of Aedes mosquitoes in small ...
Lanyon L E - - 2012
Does more mean better, different, or worse, asks Lance Lanyon.
Turecek J - - 2012
For reliable detection of explosives, a combination of methods integrated within a single measurement platform may increase detection performance. However, the efficient field testing of such measurement platforms requires the use of inexplosive simulants that are detectable by a wide range of methods. Physical parameters such as simulant density, elemental ...
Miyazaki Kensuke - - 2012
Chronic idiopathic colonic pseudo-obstruction (CICP) is characterized by the chronic disturbance of colonic motility without mechanical obstruction, any underlying disease or medication. Currently, there are no established medical treatments for CICP. A 62-year-old female who had undergone right hemicolectomy for splenic flexure syndrome caused by idiopathic megacolon was referred to ...
Cheah Nuan Ping - - 2012
OBJECTIVE: Many electronic nicotine delivery systems (ENDS) are marketed as safer tobacco alternative products or effective cessation therapies. ENDS samples were evaluated for design features, including nicotine and glycols content. This could be useful in developing a legal framework to handle ENDS. METHODS: Identification of the nicotine, glycerol and propylene ...
Cheng Sammy C H - - 2012
PURPOSE.: The purpose of this study was to investigate the sonographic (US) appearances of submandibular glands in patients with nasopharyngeal carcinoma after external beam radiotherapy (RT) and compare them with those of healthy subjects. METHODS.: A total of 81 nasopharyngeal carcinoma patients treated with RT and 66 healthy subjects were ...
Del Refugio Torres-Vitela M - - 2012
Coliform bacteria (CB), fecal coliforms (FC), Escherichia coli, diarrheagenic E. coli pathotypes (DEP) and Salmonella frequencies were determined for fresh carrot juice from restaurants in Pachuca city, Mexico. Two hundred and eighty carrot juice samples were purchased in three types of restaurants: (A), national chain restaurants; (B), local restaurants; and ...
Bae Sooho - - 2012
Magnetic resonance imaging (MRI) is widely used for diagnosing osteochondral lesions in the talus. The purpose of this study was to directly compare the MRI with the arthroscopic findings. MR images of 42 ankles were retrospectively reviewed during a period of 67 months. The osteochondral lesions were evaluated by both ...
Fallahi Homeira - - 2012
Unprotected sexual activity is an important reason for the currently growing incidence of HIV infection in Iran. Recognizing barriers to safe sexual practice and affordance of behavioral changes can improve planning for condom promotion. The main objective of our study is to evaluate the opinions of HIV-positive men on condom ...
Noonan Benjamin - - 2012
Both extreme heat and cold can be challenging for athletes during training and competition. One role of the team physician is to educate coaches and athletes on the risks of exposure to these conditions and how to best prevent and manage their adverse effects. Heat illness varies in degree from ...
Wang Jingyu - - 2012
Shack-Hartmann wavefront sensors (SH-WFS) have little sensitivity in depth and hence are unsuitable for microscopy and are limited for retinal imaging. We demonstrate the first direct Shack-Hartmann measurement of wavefront originating from a multiple-layer target, in the presence of significant stray reflections that render a standard SH-WFS inoperable. A coherence-gate ...
Deng Yunpei - - 2012
We produce 1.5 cycle (10.5 fs), 1.2 mJ, 3 kHz carrier-envelope-phase-stable pulses at 2.1 μm carrier wavelength, from a three-stage optical parametric chirped-pulse amplifier system, pumped by an optically synchronized 1.6 ps Yb:YAG thin disk laser. A chirped periodically poled lithium niobate crystal is used to generate the ultrabroad spectrum needed for a 1.5 cycle ...
Kartashov Yaroslav V - - 2012
We show that an inhomogeneous defocusing nonlinearity that grows toward the periphery in the positive and negative transverse directions at different rates can support strongly asymmetric fundamental and multipole bright solitons, which are stable in wide parameter regions. In the limiting case, when nonlinearity is uniform in one direction, solitons ...
Meehan Courtney L - - 2012
OBJECTIVES: Previous research among foragers and theory suggests that nonmaternal caregivers offer essential assistance, which supports female reproduction and the costs associated with lengthy child development. Mothers' face trade-offs in energy allocation between work and childcare, particularly when mothers have an infant. These trade-offs likely have crucial impacts on the ...
Thimmapuram Jayaram - - 2012
Esophageal food bolus impaction may require an urgent endoscopy. Glucagon is often administered to promote spontaneous passage of the food bolus. Eosinophilic esophagitis is increasingly recognized as a cause of dysphagia, and food impaction is often the presenting symptom. Our study was aimed at determining the effectiveness of glucagon in ...
Achenbach Thomas M - - 2012
To review international findings on the prevalence of diagnosed disorders, generalizability of dimensional scales, and distributions of dimensional scores for school-age children and to address the conceptual and clinical issues raised by the findings. A review of findings for interviews (Development and Well-Being Assessment, Diagnostic Interview Schedule for Children) and ...
Fair Cynthia - - 2012
Abstract Individuals with perinatally-acquired HIV (PHIV) are surviving into young adulthood. Previous literature has explored the sexual behavior of those with PHIV. However, their perspectives on navigating romantic relationships are not well understood. Semi-structured interviews were conducted with 35 young adults living with PHIV recruited from two pediatric infectious disease ...
Han Bang-Xing - - 2012
To explore the effect of AIBL on Oncomelania hupensis, the intermediate snail host of Schistosoma japonicum. The enzyme histochemical profiles of cholinesterase, cytochrome oxidase, lactate dehydrogenase, nitric oxide synthase, and succinate dehydrogenase in the soft tissues of Oncomelania hupensis, the intermediate host snail of Schistosoma japonicum, were analyzed before and ...
Liu J - - 2012
We propose a technique for measuring infrared femtosecond pulses: transient-grating self-referenced spectral interferometry. Based on this technique, we built an extremely simple, alignment-free device and successfully characterized both 38 fs pulses at 800 nm and sub-two-cycle 10 fs pulses at 1.75 μm.
van de Pol P K C - - 2012
This study examined whether (a) training and competition influence achievement goals, effort, enjoyment, tension, and performance; (b) achievement goals mediate the effects of training and competition on effort, enjoyment, tension, and performance; and (c) the context influences the relationships between goals and effort, enjoyment, tension, and performance. Participants (32 males, ...
Wittelsberger R - - 2012
The few studies dealing with the positive effects of health and well-being of older people are only one-sided. The aim of the study therefore was to analyze the effects of Nintendo-Wii® bowling on daily function, state of dementia, quality of life, cognition and motor skills in retirement home inhabitants. The ...
Cardus Anna - - 2012
AIMS: Although endothelial cell senescence is known to play an important role in the development of cardiovascular pathologies, mechanisms that attenuate this process have not been extensively investigated. The aim of this study was to investigate whether SIRT6, a member of the sirtuin family of NAD(+)-dependent protein deacetylases/ADP-ribosyltransferases, protects endothelial ...
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