(C) 2009 Elsevier Ireland Ltd. All rights reserved.”
“The fo

(C) 2009 Elsevier Ireland Ltd. All rights reserved.”
“The focus of this work was to synthesize bio-based polyurethane (PU) foams from soybean oil (SO). Different polyols from SO were produced as follows: soybean oil monoglyceride (SOMG), hydroxylated

soybean oil (HSO), and soybean oil methanol polyol (SOMP). The SOMG was a mixture of 90.1% of monoglyceride, 1.3% of diglyceride, Fludarabine in vivo and 8.6% of glycerol. The effect of various variables (polyol reactivity, water content curing temperature, type of catalyst, isocyanate, and surfactant) on the foam structure and properties were analyzed. SOMG had the highest reactivity because it was the only polyol-containing primary hydroxyl (-OH) groups in addition to a secondary -OH group. PU foams made with SOMG LY411575 and synthetic polyol contained small uniform cells, whereas the other SO polyols produced foams with a mixture of larger and less uniform cells. The type of isocyanate also had an influence on the morphology,

especially on the type of cells produced. The foam structure was found to be affected by the water and catalyst content, which controlled the foam density and the cure rate of the PU polymer. We observed that the glass transition (T(g)) increased with the OH value and the type of diisocyanate. Also, we found that the degree of solvent swelling (IDS) decreased as T(g) increased with crosslink density. These results are consistent with the Twinkling Fractal Theory of T(g). (C) 2009 Wiley Periodicals, Selleck S63845 Inc. J Appl Polym Sci 112: 2567-2578, 2009″
“Background: Diseases of the vulva often cause

severe impairment and long-term problems for the affected women. Adequate treatment requires expert knowledge on the part of treating dermatologists and gynecologists. This was the reason for the initiation of an interdisciplinary consultation service for vulvar diseases at the University Hospital of Lubeck. Patients and methods: Over a period of 2(1/2) years, 208 patients were seen in the new consultation service. Cases were classified as inflammatory diseases, neoplastic diseases, infectious diseases, vulvodynia, or genodermatoses. The effectiveness of treatment was documented by photography, biopsy and whenever applicable a quality of life assessment using the Dermatology Life Quality Index (DLQI). Results: Inflammatory dermatoses were diagnosed in 133 patients and neoplas-tic diseases in 32 patients. Infection was diagnosed in 25 patients, vulvodynia in 8, genodermatoses in 3 and other diseases in 7. The DLQI was assessed in 140 patients. Of these, 55 patients had a DLQI > 10 (030), indicating severe or extreme impairment of quality of life. A follow-up DLQI was collected in 81 patients, showing a significant improvement. Conclusions: The patients and both hospital facilities benefitted from the interdisciplinary consultation service. The initial high costs in terms of medical staff and time was compensated by the development of diagnostic and treatment algorithms.

The swelling behavior of the membranes was evaluated under variou

The swelling behavior of the membranes was evaluated under various temperatures and pH. The curve of the swelling ratio for the PAN-NIPAAm showed a lower critical solution temperature. Then, conjugated linoleic acid (CLA) was loaded into the pNIPAAm layer. The effects of CLA on the blood coagulation and oxidative learn more stress were evaluated with the use of human blood. The level of reactive oxygen species (ROS) was measured by the chemiluminescence (CL) method to evaluate the oxidative stress. Furthermore, the removal of bacterial endotoxin (lipopolysaccharide) by CLA-loaded PAN-NIPAAm was measured with enzyme-linked immunosorbent

assay. The results show that the LCST swelling curve,vas at 37 degrees C. PNIPAAm chains form expanded structures under 37 degrees C. At temperatures greater than 37 degrees C, however, die chains farm compact structures by dehydration. This makes PNIPAAM membrane due to rapid hydration and dehydration changes of the polymer chain. In addition, the swelling ratio increased by 71% when selleck inhibitor the pH increased from 5 to 10, The concentration of LPS can be reduced by CLA-loaded PAN-NIPAAm 2.1 and 1.2 times of that by unmodified PAN and PAN-NIPAAm membranes,

respectively. In addition, the level of ROS against CLA-loaded PAN-NIPAAm was reduced significantly than that against unmodified PAN and PAN-NIPAAm. Therefore CLA-loaded PAN-NIPAAm membrane could offer protection for patients against oxidative stress and could also inhibit lipopolysaccharide for clinical applications. (C) 2009 Wiley Periodicals, Inc. J Appl https://www.selleckchem.com/products/ulixertinib-bvd-523-vrt752271.html Polym Sci 113: 3222-3227,2009″
“Unique epitaxial two-phase vertically aligned nanocomposite (VAN) (BiFeO3)(x)center dot(Sm2O3)(1-x) thin films were deposited on SrTiO3(001) substrates by pulsed laser deposition. The VAN thin films exhibit a highly ordered vertical columnar structure with high epitaxial quality. We demonstrate that the strains of the two phases in both out-of-plane and in-plane directions call be tuned by the deposition parameters during growth, eg, deposition

frequency and film composition of the nanocomposite The strain tunability is found to be directly related to the systematic variation in the column widths in the nanocomposite The dielectric property Measurement shows that increasing vertical strain control will lead to a systematic dielectric loss reduction in the VAN thin films. This study suggests a promising avenue in achieving tunable strain in functional oxide thin films by using VAN structures. (C) 2009 American Institute of Physics. [doi:10.1063/1.3257175]“
“An antimicrobial peptide produced by Bacillus subtilis KU25, KU43, and KU44 was isolated from traditional Korean fermented foods and characterized. It was named as subtilin KU25, KU43, and KU44. Subtilin KU25, KU43, and KU44 were sensitive against alpha-chymotrypsin, protease XIII, and various proteinase enzymes, respectively. B.

The measured data are compared to simulations employing a two-dim

The measured data are compared to simulations employing a two-dimensional self consistent POISSON SOLVER. It is found that the shape of the depletion zone below the AFM tip is strongly influenced by the tip bias and the surface potential, which leads to a clear difference between PC data obtained with large area devices and conductive AFM tips. (C) 2011 American Institute of Physics. [doi:10.1063/1.3525272]“
“Ocular features may occur in longstanding rheumatoid arthritis. Among them, scleritis represents the most frequent manifestation

of ophthalmologic rheumatoid disease. There are three types of anterior scleritis: diffuse, nodular, and necrotizing with and without inflammation (scleromalacia perforans). Nodular scleritis is the second cause of anterior scleritis representing 20% of all types of scleritis. The SRT2104 supplier conventional learn more treatment of nodular scleritis consists in topical steroids and DMARDS. In severe cases, the therapy with immunosuppressive agents to avoid complications is necessary. We describe a 46-year-old woman presented right nodular scleritis with rheumatoid arthritis. She was treated initially with topical steroids

and DMARDs but was unable to received systemic steroids due to left open angle glaucoma in the opposite eye. After an ocular exacerbation, we initiated adalimumab with complete resolution of nodular scleritis. This is the first report of adalimumab in the treatment of nodular scleritis. Adalimumab could be a good alternative in patients with severe nodular scleritis who fail to have conventional treatment with DMARDs and unable to receive systemic steroids.”
“A novel alkali-soluble photosensitive polysiloxane urethane acrylate (APSUA) was synthesized via reacting bifunctional isocyanate with three kinds of hydroxyl group respectively, from hydroxyl silicone oil, dimethylol propionic acid (DMPA), and a compound which also has acrylate groups. The compound was prepared via reacting acrylic acid with N,N,N’,N’-tetraglycidyl -4,4′-diamino diphenyl

methane (AG-80). The optimum temperature for the synthesis reaction of APSUA was found to be 50 degrees C. The structure of the oligomer was characterized by IR, (HNMR)-H-1, and FK228 GPC. The number-average molecular weight of the APSUA was 7795. The APSUA possesses excellent compatibility with most of acrylate monomers. The effect of concentration of photoinitiator and monomers on the photopolymerization kinetics of the oligomer APSUA was investigated by real-time infrared spectroscopy (RT-IR). The results show that APSUA can well photopolymerize under UV-irradiation. The optimal concentration of photoinitiator (Darocur 1173) was determined as 0.1 wt %. The system of APSUA with DPGDA monomer has higher polymerization rate (0.0521 s(-1)) and higher double bond conversion (93.2%), respectively. The APSUA system with acrylate monomers can form regular image under UV-irradiation through a patterned mask.

“In this paper, we report a detailed study on the evolutio

“In this paper, we report a detailed study on the evolution of surface morphology and microstructure of nonpolar a-plane GaN (a-GaN) through controlled growth interruptions. Microscopy imaging shows that the two-step a-GaN growth went through a roughening-recovery process. The first-step growth (under high V/III and high pressure) produced a rough surface with tall mesas separated by voids. The second-step growth (under low V/III and low pressure) promoted the lateral growth and filled up the voids. Striations

that formed during the island coalescence persisted throughout the second-step growth, but could be relieved selleck kinase inhibitor by an additional third-step growth. The morphological evolution was

explained according to the kinetic Wulff plots. The microstructure of the a-GaN films was investigated by transmission electron microscopy (TEM) and x-ray rocking curve analysis. Most of the extended defects observed in the plan-view TEM images were I-1 type basal-plane stacking faults (BSFs) and their associated partial dislocations (PDs). It is found that the bending of PDs (at the inclined/vertical growth fronts) within the basal plane toward the m-axes was responsible for the substantial reduction in threading PDs and the increase in BSF dimension. Based on a careful correlation between the morphological evolution and the microstructure development, www.selleckchem.com/EGFR(HER).html we proposed a model explaining the possible mechanisms for the great reduction in defect density during the two-step growth process.”
“This study demonstrated that atypical virulent filaments of Listeria monocytogenes (rough variant type II and designated FR for this study), isolated from clinical specimens or generated during exposure to pulsed-plasma gas discharge in liquids, were shown to be capable of survival when engulfed by human polymorphonuclear leukocytes (PMNLs).

Factors shown to significantly influence the maximal respiratory burst response in PMNLs and survival of different internalized cell or filament forms of L. monocytogenes were bacterial strain, culture form, degree of opsonization find more (with and without the use of 10% serum) and composition of the bacterial growth media used before uptake by PMNLs. Opsonized regular-sized L. monocytogenes cells grown on blood agar (BA) elicited the greatest respiratory burst response and survived best in PMNLs. The filamentous (FR) and multiple cell chain (MCR) rough variants were significantly less susceptible to uptake and survival in PMNLs. Supplementation of tryptone soya agar with hemin resulted in significantly reduced chemiluminescence responses in phagocytosing PMNLs compared with the maximal levels observed from prior bacterial growth on BA or brain heart infusion agar that also contained a source of iron.

While cantilevers may be the most commonly used geometry in this

While cantilevers may be the most commonly used geometry in this field, we show that they are not necessarily the most sensitive in all situations. In most biosensing applications, flexural rigidity is not expected to have an impact on resonant frequency, suggesting that

all available resonator surface area should be used for analyte binding.”
“We present first-principles investigations on the structural, electronic, and polarization properties of Bi2ZnTiO6 using density-functional theory within the generalized gradient approximation. The theoretical structure we obtained confirms the extra large tetragonality observed KOS 1022 by experiment. The materials exhibit a semiconductor behavior with an indirect band gap determined by the occupied O 2p and unoccupied Bi 6p states. There are strong hybridization effects between Bi-O ions, as well as Ti-O and Zn-O ones. The resulting covalent bondings, having a PbTiO3-type two-dimensional character, strengthen each other and favor the coupling between the tetragonal distortion of unit cell and see more the off-center displacement of A and B-site cations and O anions due to the existence of Zn, and result in the large tetragonality of this compound. Berry-phase calculation gives the polarization as high as 122 mu C/cm(2).”
“OBJECTIVE: To examine the properties of mesothelial cells by measuring pleural cancer antigen 125 (CA-125) levels in

different types of benign and malignant pleural effusions.

DESIGN: In this retrospective study, pleural fluid was collected from 326 patients; pleural CA-125 levels were measured using radioimmunoassay. Patients were classified into five groups according to the aetiology of pleural effusions: I) tuberculosis, II) malignant, Ill) find more pyogenic, IV) congestive heart failure, and V) hepatic hydrothorax.

RESULTS: CA-125 levels were significantly higher in the malignant group than in all benign groups. There was no difference in pleural CA-125 levels between transudate and exudate benign aetiologies. Although pleural CA-125 levels were significantly higher in malignant than benign effusions, about one third of malignant pleural effusions had

levels of <600 U/ml. Among malignancies, there were no significant differences in pleural CA-125 levels between histological types.

CONCLUSION: CA-125 levels in benign pleural effusions may not be influenced by pleural inflammation or hydrostatic or oncotic pressure changes. Pleural CA-125 levels may not be influenced by the histological type of tumour in malignant pleural effusions, suggesting that mesothelial cell properties may not be altered by these factors in the pleural space.”
“Pharmaceutical production and distribution constitute big business. For the companies the rewards can be substantial. Rates of return on drug company investments tend to be higher than many other manufacturing enterprises. But reward is only one side of the story. There is also the issue of social risk, the focus of this article.

5 mg) to loose (L) AS (50 mg) +AQ (153 mg) in 750, P. falciparum-

5 mg) to loose (L) AS (50 mg) +AQ (153 mg) in 750, P. falciparum-infected children from Burkina Faso aged 6 months to 5 years. Dosing was by age. Primary efficacy endpoint

was Day (D) 28, PCR-corrected, parasitological cure rate. Recipients of rescue treatment were counted as failures and new infections as cured. Documented, EVP4593 supplier common toxicity criteria (CTC) graded adverse events (AEs) defined safety.

Results: Recruited and evaluable children numbered 750 (375/arm) and 682 (90.9%), respectively. There were 8 (AS/AQ) and 6 (AS+AQ) early treatment failures and one D7 failure (AS+AQ). Sixteen (AS/AQ) and 12 (AS+AQ) patients had recurrent parasitaemia (PCR new infections 10 and 6, respectively). Fourteen patients per arm required rescue treatment for vomiting/spitting out study drugs. see more Efficacy rates were 92.1% in both arms: AS/AQ = 315/342 (95% CI: 88.7-94.7) vs. AS+AQ = 313/340 (95% CI: 88.6-94.7). Non-inferiority was demonstrated at two-sided alpha = 0.05: Delta(AS+AQ-AS/AQ) = 0.0% (95% CI: -4.1% to 4.0%). D28, Kaplan Meier PCR-corrected cure rates (all randomized children) were similar: 93.7% (AS/AQ) vs. 93.2% (AS+AQ) Delta = -0.5 (95% CI -4.2 to 3.0%). By D2, both arms had rapid parasite (F & L, 97.8% aparasitaemic) and fever (97.2% [F], 96.0% [L] afebrile) clearances.

Both treatments

were well tolerated. Drug-induced vomiting numbered 8/375 (2.1%) and 6/375 (1.6%) in the fixed and loose arms, respectively (p = 0.59). One patient developed asymptomatic, CTC grade 4 hepatitis (AST 1052, ALT 936). Technical difficulties precluded the assessment and risk of neutropaenia for all patients.

Conclusion: Fixed dose

AS/AQ was efficacious and well tolerated. These data support the use of this new fixed dose combination for treating P. falciparum malaria with continued safety monitoring.”
“Background: Heterotopic ossification following lower-limb joint arthroplasty is a challenging clinical problem. No comprehensive study has been conducted on heterotopic ossification after total ankle arthroplasty, to our knowledge. The purpose of this study was to evaluate selleck chemicals the prevalence and location of heterotopic ossification after primary total ankle arthroplasty, predisposing factors, and effects on clinical outcomes, and to develop a method of classification.

Methods: Eighty ankles in eighty patients with a primary total ankle arthroplasty were followed for a mean (and standard deviation) of 31.9 +/- 11.3 months (range, twenty-four to sixty-five months). The prevalence and location of heterotopic ossification, predisposing factors, and outcomes were analyzed, and a method of classification was developed.

Results: Twenty (25%) of the eighty ankles demonstrated postoperative heterotopic ossification, with the majority of the cases in the posterior aspect of the ankle.

For the polar wz-(0001) and zb-(111) systems, the band gap values

For the polar wz-(0001) and zb-(111) systems, the band gap values are found to continuously decrease with increasing thickness of the superlattice period due to the built-in electric field. By mapping the core-level shift, we demonstrate the presence of spontaneous polarization in both wz-(0001) and zb-(111) superlattices. The built-in electric field is calculated to be about 5.1 +/- 0.3 and 1.4 +/- 0.4 MV/cm in the

“”free-standing”" (fully relaxed) wz-(0001) and zb-(111) superlattices, respectively. Strain-induced piezoelectric polarizations are estimated to contribute only about 5% for the wz-(0001) superlattice, and about 30% for the zb-(111) systems. The zb-(100) and (110) superlattices are characterized DMXAA by flat core-level bands in the well and barrier regions. The zb-(100) superlattices are predicted to have a stronger quantum confinement than the zb-(110) superlattices. In both systems, confinement effects lead to a marked band gap increase with decreasing thickness of the superlattice period. (C) 2010 American Institute of Physics. [doi:10.1063/1.3505752]“
“The goal was to identify correlates of patient satisfaction with drug and behavioral treatments for urge-predominant incontinence, which may help tailor treatments to improve satisfaction.

Planned Alisertib concentration secondary analysis

of a multi-center, clinical trial randomizing 307 women to 10 weeks of tolterodine alone or combined with behavioral training. Satisfaction was measured using the Patient Satisfaction Question (PSQ). Potential correlates included baseline demographics, incontinence characteristics and prior treatments, history and physical parameters, expectations of treatment EVP4593 purchase success, and outcome variables including the Global Perception of Improvement (GPI)

and Urogenital Distress Inventory (UDI).

After multivariable analysis, every 10-point increase in UDI change score increased odds of satisfaction by 11% (OR 1.11; 1.04-1.19). Odds of satisfaction increased among women reporting “”much better”" on the GPI (OR 13.8; 4.94-38.60).

Treatment satisfaction for women with urge-predominant incontinence was associated with patient-related outcomes reflecting impression of improvement and bother from incontinence-related symptoms.”
“Microarrays are massively parallel detection platforms that were first used extensively for gene expression studies, but have also been successfully applied to microbial detection in a number of diverse fields requiring broad-range microbial identification, This technology has enabled researchers to gain an insight into the microbial diversity of environmental samples, facilitated discovery of a number of new pathogens and enabled studies of multipathogen infections.

A multivariate Cox proportional hazard model was used to retrieve

A multivariate Cox proportional hazard model was used to retrieve the prognostic factors for survival. During the follow-up of 1,967 person-years, 33 patients died. Old age at onset (hazard ratio [HR] 7.4, 95% confidence interval [95% CI] 1.9-28.1), diffuse cutaneous subset (HR 2.5, 95% CI 1.1-5.9), presence of anti-Scl-70

antibody (HR 3.0, 95% CI 1.2-7.1), forced vital capacity less than 70% (HR 2.8, 95% CI 1.3-6.2), and heart involvement (HR 4.2, 95% CI 1.7-10.2) were found to be significant risk factors for mortality in multivariate HDAC inhibitor analysis. In Korean SSc patients, old age, diffuse cutaneous involvement, anti-Scl-70 antibody, and internal organ involvement are risk factors for mortality.”
“Swine hepatitis E virus (sHEV) has been discovered to be almost ubiquitous in pigs, and is antigenically and genetically related to human HEV. Proteomic analysis was used to identify altered

PF-00299804 cost protein expression in swine liver, using two-dimensional electrophoresis and peptide mass fingerprinting. A total of 10 protein spots exhibited significant alterations in the sHEV-infected organ. The upregulation of apolipoprotein E (Apo E) and downregulation of ferritin heavy chain were confirmed by Western analysis and by semi-quantitative reverse transcription-PCR. The elevated expression of Apo E may provide a novel insight into molecular responses to HEV infection in swine.”
“For the first time focused electron beam induced etching of silicon using molecular chlorine has been developed as reliable and reproducible BMS-777607 process. Around the etched pits

the etching process was found to be accompanied by carbonaceous deposition from hydrocarbon contamination of the residual gas typically present in a scanning electron microscope (SEM). This work will focus on the effect of residual gas deposition on this silicon etch process using chlorine. The process mechanisms for residual gas deposition (in the absence of chlorine) as well as the silicon etch process in the presence of chlorine are discussed in terms of precursor replenishment of the sample surface and precursor delivery to the processed area. The formation of carbonaceous deposits from undesired contaminants can block the surface from an etch process. Especially for low beam currents this problem was encountered. Results suggest that the presence of chlorine when processed with a high electron beam current dominates over residual gas deposition. On the other hand, the etch-inhibiting effect of an increased level of SEM chamber contamination (resulting in increased residual gas deposition rates) is shown. (C) 2010 American Institute of Physics. [doi:10.1063/1.3525587]“
“The aim of this study was to comparatively evaluate oxidative status of ankylosing spondylitis (AS) patients receiving anti-tumor necrosis factor (TNF) or non-steroid anti-inflammatory drugs (NSAID). Forty-seven patients with AS and 27 healthy controls were enrolled.

“Background: Up to 60% of chronic obstructive pulmonary di

“Background: Up to 60% of chronic obstructive pulmonary disease ( COPD) patients can present airway hyperresponsiveness. However, it is not known whether the peripheral lung tissue also shows an exaggerated response to agonists Sapanisertib in COPD. Objectives: To investigate the in vitro mechanical behavior and the structural and inflammatory changes of peripheral lung tissue in COPD patients and compare to nonsmoking controls. Methods: We measured resistance and elastance at baseline and after acetylcholine (ACh) challenge of lung strips obtained from 10 COPD patients and 10 control subjects.

We also assessed the alveolar tissue density of neutrophils, eosinophils, macrophages, mast cells and CD8+ and CD4+ cells, as well as the content of alpha-smooth muscle actin-positive cells and elastic and collagen fibers. We further investigated whether changes in in vitro parenchymal mechanics correlated to structural and inflammatory parameters and to in vivo pulmonary MK-2206 in vivo function. Results: Values of resistance after ACh treatment and the percent increase in tissue resistance (%R) were higher in the COPD group (p <=

0.03). There was a higher density of macrophages and CD8+ cells (p < 0.05) and a lower elastic content (p = 0.003) in the COPD group. We observed a positive correlation between %R and eosinophil and CD8+ cell density (r = 0.608, p = 0.002, and r = 0.581, p = 0.001, respectively) SBE-β-CD order and a negative correlation between %R and the ratio of forced expiratory volume in 1 s to forced vital capacity (r = -0.451, p < 0.05). Conclusions: The cholinergic responsiveness of parenchymal lung strips is increased in COPD patients and seems to be related to alveolar tissue eosinophilic and CD8 lymphocytic inflammation and to the degree of airway obstruction on the pulmonary function test. Copyright

(C) 2011 S. Karger AG, Basel”
“The minimally invasive video-assisted thyroidectomy (MIVAT) for thyroid benign nodules and central neck dissection (CND) for papillary thyroid microcarcinoma (PTMC) have been applied, presently, we attempted to perform video-assisted selective lateral neck dissection (VASLND) for papillary thyroid carcinoma (PTC).

Twenty-six consecutive PTC patients with unilateral tumor (size < 4.0 cm) and suspected lymph node metastasis at level III, IV, or IIa were included from March 2009 to January 2012.

VASLND was successfully performed in all 26 PTC patients. The mean operative time was 46 min (range 26-75 min) on VASLND. No major complications occurred. Average postoperative hospital stay was 3.6 days (range 2-8 days). The mean number of removed nodes was 7.3 (range4-12) in central neck and 8.3 (range 3-21) in lateral compartment. Positive yield amounted to a mean value of 2.6 (range 0-5) and 3 (range 0-6), respectively. No persistent or recurrent disease was observed in any patient during a follow-up period. The cosmetic result was excellent.

Materials and Methods: In this study with institutional review bo

Materials and Methods: In this study with institutional review board approval and patient consent, diffusional measures of mean kurtosis (MK), fractional anisotropy (FA), and apparent diffusion coefficient (ADC) were compared prospectively. Data were normalized to the contralateral white matter. A Mann-Whitney test was used to compare each histologic glioma subtype regarding SNX-5422 solubility dmso the diffusion measurements. Receiver operating characteristic curves were used to test for the parameter with the best sensitivity and specificity for glioma grade


Results: In 34 patients with cerebral gliomas (five World Health Organization [ WHO] grade II astrocytomas, 13 WHO grade III astrocytomas, and 16 WHO grade IV glioblastomas multiforme), significantly different diffusion patterns were found among the three glioma groups. MK values increased with higher glioma malignancy, whereas

DZNeP supplier ADCs tended to decrease with higher malignancy; FA values did not differ significantly among tumor groups. Significant differences between astrocytoma grades WHO II and WHO III were demonstrated only by DK values. Area under the receiver operating characteristic curve was highest for normalized MK (0.972) during testing to discriminate between low- and high-grade gliomas.

Conclusion: This study demonstrates specific diffusion patterns for low- and high-grade gliomas, showing that DK imaging is able to depict microstructural changes within glioma tissue and is able to help differentiate among glioma grades. (C)RSNA, 2010″
“The effects on the thermoelectric properties of n-Ba8Ga16Ge30 when substituting small amounts of the Linsitinib supplier Ga or Ge with Sb or Zn have been investigated. A number of syntheses were prepared in quaternary systems of Ba8Ga16Ge30 substituted with either Sb or Zn but only three samples were found to yield single phase products

with nominal compositions of Ba8Ga15Sb1Ge30, Ba8Ga15Zn1Ge30 and Ba8Ga16Ge28Zn2, respectively. When Ge was substituted for Zn the resulting sample remained n-type and an increase in thermopower and a decrease in thermal conductivity were achieved. These positive effects were accompanied with an increased electrical resistivity and thus the ZT was only somewhat improved up to about 400 degrees C. When substituting Ga with either Sb or Zn samples remained n-type but showed decreased thermopower and increased electrical resistivity and thermal conductivity. It is thus concluded that substitution of Ga with Zn or Sb is detrimental for the thermoelectric properties of Ba8Ga16Ge30, whereas substitution of Ge with Zn appears a potent method for improving its performance. (c) 2010 American Institute of Physics. [doi: 10.1063/1.