Search Results
Results 201 - 250 of 1428
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Luo Jia - - 2012
The purpose of this study was to evaluate the influence of the placing depth of the implants with platform switching (Ankylos) on the marginal bone remodeling, by means of radiological observation. 111 Ankylos implants in the posterior mandible from 46 patients (20 male and 27 female) were enrolled in this ...
Mi Shan Shan - - 2012
To evaluate the effects of ionic-dissolution of sol-gel bioactive glasses (BG) on proliferation and alkaline phosphatase (ALP) activity of human dental pulp cells (HDPCs) . The primary HDPCs were isolated from intact premolar and third molars and were cultured in DMEM. Then the 4 th generation of HDPCs were cultured ...
Zhao Jian Hui - - 2012
To compare occlusual changes after orthodontic treatment between adults' and adolescents' skeletal class II malocclusion with average mandible plane angle. In the study, 30 adolescent girls and 30 women who had skeletal class II and Angle class II, division 1 malocclusions were selected. The two groups were matched by sex, ...
Yan Zhi Min - - 2012
To evaluate the diagnostic value of each item in 2002 international classification criteria for primary Sjogren's syndrome (pSS) in clinically diagnosed cases. All patients were from the Department of Oral Medicine of Peking University School of Stomatology from 2005 to 2010. Their clinical manifestations and lab testing results met the ...
Chen Zhi Bin - - 2012
To investigate the possible relationship between the preterm and/or low birth weight (PLBW) and three anaerobic microorganisms in saliva of their mothers, including Porphyromonas gingivalis (Pg), Tannerella forsythia (Tf), Treponema Denticola (Td). 110 retrospective cases were collected from 4 hospitals in Beijing urban and suburban areas. PLBW group included 72 ...
Wang Yang - - 2012
To evaluate the clinical effect of the combined pre- and retro-auricular incision used in superficial parotidectomy. The clinical data of 30 patients with benign tumors in the superficial parotid were collected. All the patients received the parotidectomy using the combined incision (15 cases) and the standard bayonet-shaped incision (15 cases) ...
Li Zheng - - 2012
To investigate the periodontal health conditions by using community periodontal index (CPI) and analyze the effects of related risk factors. By stratified random sampling procedure, a total of 1 183 subjects aged 35-74 were recruited from 13 neighbour community and accepted structured interview and periodontal examination. The percentage of edentulous ...
Zhan Yuan - - 2012
To investigate the cytotoxicity of calcium hydroxide (CH) and composite resin on fibroblasts derived from human embryo body fibroblasts-H9 (EBf-H9), human dental pulp cells (hDPCs) and immortalized fibroblasts L929; and to evaluate the use of EBf-H9 as a cellular model for cytotoxicity screening of dental materials. The EBf-H9 cells were ...
Gonzales Brian J - - 2012
Energy-discriminated x-ray computed tomography (CT) data were projected onto a set of basis functions to suppress the noise in filtered back-projection (FBP) reconstructions. The x-ray CT data were acquired using a novel x-ray system which incorporated a single-pixel photon-counting x-ray detector to measure the x-ray spectrum for each projection ray. ...
Li Wei - - 2012
Accurate segmentation of the prostate is the key to the success of external beam radiotherapy of prostate cancer. However, accurate segmentation of the prostate in computer tomography (CT) images remains challenging mainly due to three factors: (1) low image contrast between the prostate and its surrounding tissues, (2) unpredictable prostate ...
James Sara St - - 2012
Treatment planning for patients undergoing radiation therapy is often performed based on four-dimensional computed tomography (4DCT) when respiratory motion is present, as in lung cancer patients. 4DCT is used to define the internal target volume (ITV) that, ideally, incorporates all potential locations of the tumour. In this work, we use ...
Amador Carolina - - 2012
Elasticity imaging methods have been used to study tissue mechanical properties and have demonstrated that tissue elasticity changes with disease state. In current shear wave elasticity imaging methods typically only shear wave speed is measured and rheological models, e.g. Kelvin-Voigt, Maxwell and Standard Linear Solid, are used to solve for ...
Golan Rachel - - 2012
Unlike visceral adipose tissue (VAT), the association between subcutaneous adipose tissue (SAT) and obesity-related morbidity is controversial. In patients with type 2 diabetes, we assessed whether this variability can be explained by a putative favorable, distinct association between abdominal superficial SAT (SSAT) (absolute amount or its proportion) and cardiometabolic parameters. ...
Shannahan J H - - 2012
Exposure to Libby amphibole (LA) asbestos is associated with increased incidences of human autoimmune disease and mortality related to cardiovascular diseases. However, the systemic and vascular impacts are less well examined because of the dominance of pulmonary disease. It was postulated that regardless of the type of exposure scenario, LA ...
Mensching Donna A - - 2012
The role of polybrominated diphenyl ethers (PBDE) was investigated in the occurrence of feline hyperthyroidism (FH) by evaluating 15 PBDE congeners in serum from 62 client-owned (21 euthyroid, 41 hyperthyroid) and 10 feral cats. Total serum PBDE concentrations in euthyroid cats were not significantly different from those of hyperthyroid cats. ...
Hollingworth Charlotte - - 2012
Transition metal catalyzed transformations using fluorinating reagents have been developed extensively for the preparation of synthetically valuable fluorinated targets. This is a topic of critical importance to facilitate laboratory and industrial chemical synthesis of fluorine containing pharmaceuticals and agrochemicals. Translation to (18)F-radiochemistry is also emerging as a vibrant research field ...
Tsai Shang-Shyue - - 2012
Recent studies showed that air pollution is a risk factor for hospitalization for myocardial infarction (MI). However, there is limited evidence to suggest which subpopulations are at higher risk for MI arising from air pollution. This study was undertaken to examine the modifying effects of specific secondary cardiovascular diagnosis (including ...
Klotzsche-von Ameln Anne - - 2012
A right amount of oxygen and nutrients is essential for a tumor to develop. The role of oxygen dependent pathways and their regulators is therefore of utmost importance although little is known about the detailed impact they can have. Recently we have shown that inhibition of the oxygen sensor PHD2 ...
Ji Shunrong - - 2012
Integrin αvβ3 receptor is expressed on several types of cancer cells, including pancreatic cancer cells, and plays an important role in tumor growth and metastasis. The ability to target the integrin αvβ3 receptor on cancer cells increases the efficacy of targeted therapy and reduces the side effects. The aim of ...
Booth Laurence L Department of Neurosurgery, Virginia Commonwealth University, Richmond, - - 2012
We have further defined mechanism(s) by which the drug OSU-03012 (OSU) kills tumor cells. OSU lethality was suppressed by knock down of PERK and enhanced by knock down of ATF6 and IRE1α. OSU treatment suppressed expression of the chaperone, BiP/GRP78, and did so through reduced stability of the protein. Knock ...
Seo Seung-Jun - - 2012
In order to study potent microenvironments of malignant gliomas with a high- resolution x-ray imaging technique, an injection orthotopic glioma model was made using the Sprague-Dawley rat. Total brain tissue, taken out as an ex vivo model, was examined with diffraction-enhanced imaging (DEI) computed tomography (CT) acquired with a 35 ...
Schell S - - 2012
Laser-driven particle acceleration is a potentially cost-efficient and compact new technology that might replace synchrotrons or cyclotrons for future proton or heavy-ion radiation therapy. Since the energy spectrum of laser-accelerated particles is rather wide, compared to the monoenergetic beams of conventional machines, studies have proposed the usage of broader spectra ...
Jahnke Lennart - - 2012
We present a GPU implementation called GMC (GPU Monte Carlo) of the low energy (<100 GeV) electromagnetic part of the Geant4 Monte Carlo code using the NVIDIA® CUDA programming interface. The classes for electron and photon interactions as well as a new parallel particle transport engine were implemented. The way ...
Carabe Alejandro - - 2012
Traditionally, dose in proton radiotherapy is prescribed as Gy(RBE) by scaling up the physical dose by 10%. The relative biological effectiveness (RBE) of protons is considered to vary with dose-averaged linear energy transfer (LET(d)), dose (d) and (α/β)(x). The increase of RBE with depth causes a shift of the falloff ...
Yohannes Indra - - 2012
Tissue- and water-equivalent materials (TEMs) are widely used in quality assurance and calibration procedures, both in radiodiagnostics and radiotherapy. In radiotherapy, particularly, the TEMs are often used for computed tomography (CT) number calibration in treatment planning systems. However, currently available TEMs may not be very accurate in the determination of ...
Ramakrishnan Jagdish - - 2012
We conduct a theoretical study of various solution methods for the adaptive fractionation problem. The two messages of this paper are as follows: (i) dynamic programming (DP) is a useful framework for adaptive radiation therapy, particularly adaptive fractionation, because it allows us to assess how close to optimal different methods are, ...
Lazarakis P - - 2012
The concept of nanodosimetry is based on the assumption that initial damage to cells is related to the number of ionizations (the ionization cluster size) directly produced by single particles within, or in the close vicinity of, short segments of DNA. The ionization cluster-size distribution and other nanodosimetric quantities, however, ...
Palma Bianey Atriana - - 2012
The purpose of this study was to present a Monte-Carlo (MC)-based optimization procedure to improve conventional treatment plans for accelerated partial breast irradiation (APBI) using modulated electron beams alone or combined with modulated photon beams, to be delivered by a single collimation device, i.e. a photon multi-leaf collimator (xMLC) already ...
Clasie Benjamin - - 2012
Proton, as well as other ion, beams applied by electro-magnetic deflection in pencil-beam scanning (PBS) are minimally perturbed and thus can be quantified a priori by their fundamental interactions in a medium. This a priori quantification permits an optimal reduction of characterizing measurements on a particular PBS delivery system. The ...
Correia Teresa T Department of Medical Physics and Bioengineering, University College London, Gower Street, London WC1E 6BT, UK. - - 2012
We present 3D optical topography images reconstructed from data obtained previously while infants observed videos of adults making natural movements of their eyes and hands. The optical topography probe was placed over the temporal cortex, which in adults is responsible for cognitive processing of similar stimuli. Increases in oxyhaemoglobin were ...
Noordeen Nafeesa A NA Section of Cell Biology, Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Faculty of Medicine, Imperial College London, London, - - 2012
Carbohydrate-responsive element-binding protein (ChREBP) is a regulator of pancreatic β-cell gene expression and an important mediator of glucotoxicity. Glucose increases the activity and nuclear localization of ChREBP by still ill-defined mechanisms. Here we reveal, using both MIN6 and primary mouse β-cells, a unique mechanism behind ChREBP nuclear translocation. At low ...
Pascoe Jordan J Division of Endocrinology and Metabolism, University of Pittsburgh, Pittsburgh, Pennsylvania, - - 2012
Pancreatic β-cell proliferation is infrequent in adult humans and is not increased in type 2 diabetes despite obesity and insulin resistance, suggesting the existence of inhibitory factors. Free fatty acids (FFAs) may influence proliferation. In order to test whether FFAs restrict β-cell proliferation in vivo, mice were intravenously infused with ...
Alauddin Md - - 2012
Infrared (IR) predissociation of hydrogen-bonded ternary cluster ions such as aniline-water-ethanol (AWE(+)), aniline-water-isopropanol (AWP(+)), aniline-methanol-ethanol (AME(+)), aniline-water-pyrrole (AWPy(+)), and aniline-water-benzene (AWB(+)) was examined in the region of 2700-4000 cm(-1) to explore the key factors which determine the branching ratios in the concurrent unimolecular dissociation. The smaller solvent molecule was predominantly ...
Yu Guocan - - 2012
A novel non-symmetric pillar[5]arene-based anion receptor containing multiple triazole anion-binding sites was designed and synthesized. It has high affinity and selectivity for the fluoride anion.
Zhang Guofu - - 2012
A novel SBA-15 supported catalyst PdL(n)@SBA-15 containing a 2-pyridyl-1,2,3-triazole ligand framework was prepared via a "click" route, in which the click-triazole acted as both a stable linker and a good chelator. The catalyst was characterized and applied for the aerobic oxidation of alcohols, and the product was obtained in up ...
Esterle Thomas F - - 2012
The organised nanostructure of mesoporous platinum deposited from the H(I) phase of a lyotropic liquid crystal template contains a regular, hexagonal array of uniform nanometre diameter cylindrical pores. This structure is ideally suited to the investigation of the interfacial capacitance and properties of ionic liquids confined within small pores of ...
Pasierski Tomasz - - 2012
Venous thromboembolism (VTE) is a common complication of cancer. Prolonged use of low‑molecular‑weight heparin in cancer patients provides better VTE prophylaxis compared with vitamin K antagonists. Both therapeutic options have a similar safety profile. If patients on long‑term oral anticoagulation are diagnosed with cancer, they should continue treatment with vitamin ...
Riv Nicoletta - - 2012
For more than 60 years, vitamin K antagonists have been the only available oral anticoagulants for the prevention of stroke and systemic embolism in atrial fibrillation (AF). Several new molecules, with a favorable pharmacokinetic profile and avoiding routine monitoring, have been recently developed, opening a new era in anticoagulation. The ...
Mammen Manoj J - - 2012
Acute exacerbations are a major contributor to health care costs and a leading cause of death in patients with chronic obstructive pulmonary disease (COPD). A reduction in acute exacerbations of COPD (AECOPD) would lead to significant improvements in patient well‑being and survival. Bacterial and viral infections cause a majority of ...
Biedler A - - 2012
Psychiatric emergency situations (PES) are common in the physician-based emergency medical system (EMS) in Germany. However, many emergency physicians (EP) feel insecure in assessing the necessity for treatment of these patients. The aim of this investigation was to evaluate whether a short, newly developed questionnaire (Indicator for Psychiatric Pharmacotherapy, IPP) ...
Jing Yun - - 2012
Reducing the spatial aliasing error of the angular spectrum method by using an absorption layer is investigated in this paper. The acoustic equation including the absorption layer is presented and is transformed in the spatial frequency domain, where an implicit analytic solution is readily available. Its approximation, which is more ...
Kobayasi Kohta I - - 2012
The Mongolian gerbil (Meriones unguiculatus) has been an important model system in auditory physiology, but its natural sounds are not well known. Vocalizations produced by colonies of adult gerbils were recorded during various social interactions in a standard laboratory animal-rearing facility. Sound recordings were made continuously for 24 h. This species ...
Peris Eulalia - - 2012
The time of day when vibration occurs is considered as a factor influencing the human response to vibration. The aim of the present paper is to identify the times of day during which railway vibration causes the greatest annoyance, to measure the differences between annoyance responses for different time periods ...
Shi Chuan - - 2012
Nonsense-mediated mRNA decay (NMD) is an important mRNA quality surveillance pathway in all eukaryotes that eliminates aberrant mRNAs derived from various sources. Three NMD factor proteins, UPF1, UPF2, and UPF3 are required for the NMD process and were found to be also involved in certain stress responses in mammalian and ...
Brink A J - - 2012
Tigecycline, the first of a new class of broad-spectrum antibiotics (the glycylcyclines), has been licensed in South Africa for the parenteral treatment of adult patients with complicated intra-abdominal infections (cIAIs) and complicated skin and soft-tissue infections (cSSTIs). This article serves as a summary of the guideline on the appropriate use ...
Suh Jun-Won - - 2012
In this study, the problem of sparse enrollment data for in-set versus out-of-set speaker recognition is addressed. The challenge here is that both the training speaker data (5 s) and test material (2 ∼ 6 s) is of limited test duration. The limited enrollment data result in a sparse acoustic model space for the ...
Huijts Irene - - 2012
This study investigated the relationship between coping style, posttraumatic stress disorder (PTSD) symptoms, and quality of life in traumatized refugees (N = 335). Participants had resettled in the Netherlands on average 13 years prior and were referred to a Dutch clinic for the treatment of posttraumatic psychopathology resulting from persecution, ...
Cho Sangjin - - 2012
A modified loop filter design method for plucked string instruments is introduced. Previous loop filter designs do not properly represent the frequency-dependent damping of a silk stringed instrument. To solve this problem, the modified method evaluates how many harmonics are required and which portion of the sound should be chosen ...
- - 2012
†This section of the journal is intended to provide coverage of published adverse reaction case reports in relation to genetic diagnoses, pharmacogenetic findings, and individualized use of molecularly targeted therapies. These case reports have been published in recent issues of Reactions, another Adis Journals publication; more information can be found ...
Bindapersad M - - 2012
We describe a case report of gossypiboma (retained surgical swab), a rare occurrence secondary to a previous open surgical procedure. The incidence has been estimated at between 1 in 100 to 5 000 surgical procedures.
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