g , oxide and ferrites The high magnetization and optimality of

g., oxide and ferrites. The high magnetization and optimality of T-C values for self-controlled hyperthermia applications observed in these materials distinguish them as magnetic material of choice for such applications. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3190556]“
“Thermosensitive poly(N-isopropylacrylamide-co-acrylamide) microgel particles were prepared through precipitation polymerization. The diameters of the microgel particles were in the range of 220-270 nm and showed a monodispersion. The lower

critical solution temperatures (LCST) Staurosporine inhibitor of the microgel dispersions were measured by dynamic light scattering and turbidimetric analysis. The results indicated that the LCST increased with an increase of acrylamide (AAm) content in the co-polymer composition. The kinetics of the thermosensitice phase transitions of the microgel particles were investigated by time-course UV-vis spectroscopy. The results indicated that the higher the content of AAm in copolymer composition, the more time is required for equilibrium deswelling and the less time required for equilibrium swelling. In addition, the time required for equilibrium deswelling decreased with an increase of the content of the microgel particles in dispersions. By contrast, the time required for equilibrium swelling increased slightly. Thus, a suitable

LCST and time required for equilibrium of phase transition ERK inhibitor can be achieved by adjusting the molar ratio of the comonomers in the microgels and the content of the microgel particles in dispersions. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 113: 321-326, 2009.”
“No detailed comparative data are available on the hormonal parameters of horses suffering from a number of diseases. The aim of our study was to measure concentrations of cortisol, adrenocorticotropic hormone (ACM), serotonin,

GSK2126458 price adrenaline and noradrenaline in horses with various diseases and following surgery, to assess the response of the HPA axis and adrenal medulla.

Blood samples were obtained from six groups of horses comprising a total of 119 animals as follows: laminitis, acute abdominal syndrome (AAS), castration surgery, acute diseases, chronic diseases and healthy controls. Serum hormonal concentrations were determined for each group for comparison.

Statistically significant differences between all groups and controls were found for cortisol, ACTH (except for castration), serotonin and adrenaline concentrations but only in horses with laminitis and AAS for noradrenaline. No statistically significant differences were found between males and females. The largest changes in the pituitary-adrenal axis activity occurred mainly in acute diseases, laminitis and in the MS group. (C) 2011 Elsevier Ltd. All rights reserved.

(C) 2011 Wiley Periodicals, Inc J Appl Polym Sci, 2012″
“Kn

(C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012″
“Knowing enough information about pain and its management to adequately care for people in pain may seem challenging,

especially for primary care providers who provide the bulk of pain management services in the SNX-5422 supplier United States. Few, if any, primary care providers received training beyond the names of a few analgesics and the rudiments of pain assessments. Fortunately, many national and international societies provide health care practitioners with pain-related education, resources, and tools. Education may be tied to pain certification or specialization, or provided solely for the benefit of practitioners. Due in large part to the World Wide Web, much information PLX4032 purchase about pain is readily available online.”
“The antimicrobial effectiveness or preservative effectiveness test is described in the tripartite compendia for sterile parenteral multi-dose formulated products. The execution of the test is essentially harmonized with respect to inoculum preparation and test execution but not the acceptance criteria. This article describes how a single test can be performed that procedurally satisfies all of the compendia and their acceptance criteria.”
“Background: The Hospital Anxiety and Depression Scale

(HADS) is commonly used to assess symptoms of anxiety and depression in motor neurone disease (MND). The measure has never been specifically validated for use within this population, despite questions selleckchem raised about the scale’s validity. This study seeks to analyse the construct validity of the HADS in MND by fitting its data to the Rasch model.

Methods: The scale was administered to 298 patients with MND. Scale assessment included model fit, differential item functioning (DIF), unidimensionality, local dependency and category threshold analysis.

Results: Rasch analyses were carried out on the HADS total score as well as

depression and anxiety subscales (HADS-T, D and A respectively). After removing one item from both of the seven item scales, it was possible to produce modified HADS-A and HADS-D scales which fit the Rasch model. An 11-item higher-order HADS-T total scale was found to fit the Rasch model following the removal of one further item.

Conclusion: Our results suggest that a modified HADS-A and HADS-D are unidimensional, free of DIF and have good fit to the Rasch model in this population. As such they are suitable for use in MND clinics or research. The use of the modified HADS-T as a higher-order measure of psychological distress was supported by our data. Revised cut-off points are given for the modified HADS-A and HADS-D subscales.

The results from the SEM-X-ray and TEM-X-ray microanalyses demons

The results from the SEM-X-ray and TEM-X-ray microanalyses demonstrate that Na+ was compartmentalized Ferroptosis inhibitor cancer predominantly into the cell vacuoles of shoot endodermis tissues. Accordingly, the transcript amounts of SeNHX1, SeVHA-A, and SeVP1 increased significantly with increased NaCl concentration, suggesting their important roles in Na+ sequestration into the vacuoles. Therefore, a multiple sodium compartmentalization mechanism is proposed to enhance further the salt tolerance of S. europaea. (C) 2011 Elsevier Masson SAS. All rights reserved.”
“Synchrotron

pole figures have been recorded from the Nd(2)Fe(14)B, Nd(2)O(3), and NdO grains in commercial Dy-free, Nd-Fe-B sintered magnets in the as-sintered and fully annealed states. In contrast to the

well known < 00l > fiber texture in the Nd(2)Fe(14)B grains, the Nd-oxide phases showed no preferred orientation in the as-sintered or annealed states. The random orientation of the Nd-oxide grains was confirmed from histograms of the pole density values. These showed only small deviations from the pole density of a non-textured material. (C) 2011 American Institute of Physics. [doi:10.1063/1.3602076]“
“The ARN-509 manufacturer safety and reactogenicity profiles of the 10-valent pneumococcal conjugate vaccine, PHiD-CV, and 7vCRM were comparable within the Philippines and Poland when coadministered as a booster dose with DTPw-HBV/Hib and poliovirus vaccines to toddlers primed with the same vaccines. Robust immune responses for all 10 vaccine pneumococcal serotypes and protein D following PHiD-CV booster vaccination were indicative of effective priming.”
“Soil salinity is contributed largely by NaCl but some halophytes such as Sesuvium portulacastrum have evolved to adapt salinity environment and demonstrate SC79 cost optimal development under moderate salinity. To elucidate the detail mechanisms of the great salt tolerance and determine the respective contributions of Na+, K+ and Cl- on the development of S. portulacastrum, morphological and physiological analysis were performed using plants

supplied with 200 mM of different ions including cations (Na+, K+, Li+) and anions (Cl-, NO3-, Ac-) respectively. The results revealed that the salt-treated plants accumulated large amounts of sodium in both leaf and stem. There was a greater shoot growth in presence of external Na+ compared to K+ and Cl-. Na+ was found more effective than K+ and Cl- in cell expansion, leaf succulence, and shoot development. Flame emission and X-Ray microanalysis revealed the relative Na+ content was much higher than K+ and Cl- in both leaf and stem of well developed S. portulacastrum, leading to a higher Na+/K+ ratio. The effects of different ions on the development of S. portulacastrum were listed as the following: Na+ > NO3- > CK > Cl- > K+ > Ac- > Li+.

All subjects were healthy, and sexually active, without neurologi

All subjects were healthy, and sexually active, without neurological diseases, genital, or urethral surgery and they were not under any medications. Subjects were evaluated with ultrasound, uroflowmetry, and post-void residual urine (PVR) measurement. All subjects selleck products were followed for 22 days (T) with daily uroflowmetry, and were instructed to ejaculate only on specific days (0, 6 and

22) during the study period. On days 0, 6 and 22 uroflow measurements were performed between 2 and 6 hr following ejaculation. Uroflowmetry parameters before and after ejaculation and during abstinence were compared. Data presented a non-normal distribution and the non-parametric Wilcoxon-match-paired test and Kruskal-Wallis test were used for statistical analysis. Results: 18 subjects (mean age 27.4years) completed the study. A total of 414 uroflow charts were collected. A statistical significant increase in Qmax was observed after ejaculation Ilomastat clinical trial (T-1 Qmax: 22.7 +/- 5.4 vs. T0 Qmax: 25.7 +/- 8, P = 0.002; T5 Qmax 23.2 +/- 5.4 vs. T6 Qmax 25.4 +/- 8, P = 0.031; T21 Qmax

21 +/- 4.8 vs. T22 Qmax 24.5 +/- 7.9, P = 0.031). Sexual abstinence resulted in a progressive, statistically significant decline in Qmax rates (T0 Qmax 25.7 +/- 8 vs. T5 23.2 +/- 5.4 P = 0.035; T6 Qmax 25.4 +/- 8 vs. T21 Qmax 21 +/- 4.8, P = 0.01). PVR did not change during the study period. Conclusions: Our results suggest that in young healthy men micturition might be influenced by ejaculation. Our findings, if confirmed in larger series of patients with LUTS, should support that sexual status and activity could represent an important confounding factor in the interpretation of uroflowmetry traces. Neurourol. Urodynam 30:1571-1575, 2011. (C) 2011 Wiley Periodicals, Inc.”
“Elucidation of the association between short sleep Ispinesib duration and elevated blood pressure has implications for assessing and managing hypertension in adults. Objective. To assess the relationship between sleep duration and blood pressure, and its role in the etiology of hypertension. Methods. On a systematic search from MEDLINE,

EMBASE, CINAHL, PEDro, PsychINFO and grey literature were included articles with participants over 18 years, reported sleep duration, measured blood pressure or diagnosed hypertension, and the relationship between sleep duration and blood pressure was analyzed. Results. Of 2522 articles initially identified, 11 studies met the inclusion criteria. Sample sizes ranged from 505 to 8860 (aged >= 0-98 years). Five studies (aged >= 58-60 years) determined that sleep duration and blood pressure were unrelated. In younger adults, five studies reported an association between short sleep duration and hypertension before adjustment for confounding variables; only the findings from one study remained significant after adjustment. Two studies supported a sex association; women who sleep less than 5-6 h nightly are at greater risk of developing hypertension. Conclusion.

Inter-phase boundary conditions are automatically taken into acco

Inter-phase boundary conditions are automatically taken into account without explicitly tracking inter-phase interfaces in the composites. The core-shell structures of filler particles are systematically investigated in terms of shell thickness and dielectric constant with respect to core size and matrix dielectric constant, respectively. The effects of filler particle AG-014699 nmr size, shape, and orientation are considered. It is found that core-shell structures of filler particles provide effective means to mitigate local electric field concentration in dielectric composites, improving dielectric breakdown strength and energy density of the composites.

Optimal design of core-shell filler particles requires low shell dielectric constant and thick shell coating as compared to core material and core size, respectively. (C) 2011 American Institute

of Physics. [doi:10.1063/1.3624660]“
“Amyotrophic lateral sclerosis (ALS) is generally considered to be a paradigm of pure motor neuron disorder; nevertheless, the possible CP-456773 Immunology & Inflammation inhibitor occurrence of cognitive impairment up to a frank dementia in patients affected by ALS is recognized. The appraisal of the cognitive impairment in ALS patients is crucial not only to the therapeutic trials of this incurable disease, but also to the planning of care, compliance to interventions, the end-of-life decisions. The cognitive/behavioral changes of ALS patients are consistent with frontotemporal dysfunctions; selleck inhibitor the overlap of neuropathological features of ALS and frontotemporal lobe degeneration (FTLD) supports, in addition, the putative spectrum of ALS and FTD. In the present review, the pertinent clinical, genetic, neuropathological, neuropsychological and neuroimaging data of the literature are comprehensively and critically discussed. The distinct and overlapping features of ALS

and FTD are pointed out, as well as the undisclosed questions deserving additional studies.”
“A new class of catalyst for the preparation of rigid polyurethane (RPUR) foams was developed. Metal(II)-amine complexes [M(en)(2) and M(trien), where M = Cu or Ni, en = ethylenediamine, and trien = triethylenetetramine] were synthesized and used as catalysts in the preparation of RPUR foams. The catalytic activity of the metal(II)amine complexes and properties of the RPUR foams were investigated and compared to those prepared by N,N-dimethylcyclohexylamine (DMCHA), which is a common commercial tertiary amine catalyst used in the preparation of RPUR foams. The use of M(en)2 and M(trien) can improve the working environment in RPUR foam processing because DMCHA and other commercial tertiary amine catalysts have a strong odor, whereas M(en)(2) and M(trien) do not have any odor. The reaction times in RPUR foam preparation, namely, cream time, gel time, tack-free time, and rise time, were investigated.

The principal readers of e-N-acetyl lysine (K-ac) marks are bromo

The principal readers of e-N-acetyl lysine (K-ac) marks are bromodomains (BRDs), which are a diverse family of evolutionary conserved protein-interaction modules. The conserved BRD fold contains a deep, largely hydrophobic acetyl lysine binding site, which represents an attractive pocket for the development of small, pharmaceutically active molecules. Proteins that contain BRDs have been implicated in the development of a large variety of diseases. Recently, two highly potent and selective inhibitors that target BRDs of the BET (bromodomains and extra-terminal)

family provided compelling data supporting targeting of these BRDs in inflammation and in an aggressive type of squamous cell carcinoma. It find more is likely Captisol datasheet that BRDs will emerge alongside HATs and HDACs as interesting targets for drug development for the large number of diseases that are caused by aberrant acetylation of lysine residues.”
“. The aim of this study is to review clinical trial data on the newly approved protease inhibitors boceprevir and telaprevir to develop consensus recommendations on the optimal use of

these agents for the treatment of patients with chronic hepatitis C virus (HCV) infection. An expert panel of seven leading authorities in viral hepatitis was convened to establish and disseminate a practical guide on best practices for incorporating boceprevir and telaprevir into therapy for HCV

infection in both treatment-naive and treatment-experienced patients. The topics covered include selecting candidates for boceprevir- or telaprevir-based treatments, predictors of response and early viral kinetics, response-guided therapy approaches, on-treatment management strategies to optimize the likelihood of response and minimize the risk of drug resistance, management of adverse PF-02341066 cell line effects during therapy and key considerations for special populations. The expert panel incorporated the best available clinical evidence into recommendations on how boceprevir and telaprevir should be used in the clinical setting. They indicated how treatment regimens may differ according to the baseline factors, such as presence of cirrhosis and when therapy may need to be modified or stopped altogether because of adverse events or poor virologic response. This practical guide will serve as a valuable resource for clinicians embarking on the new treatment paradigm of boceprevir or telaprevir in combination with peginterferon/ribavirin for chronic genotype 1 HCV infection.”
“The effect of solid state fermentation, using Aspergillus niger, on the protein fractions and amino acid profile of Terminalia catappa seed meal was investigated. A 5 ml A. niger spore suspension, containing 2.21 x 10(4) spores per ml, was used to inoculate 25 g of milled T. catappa seed meal.

At

same amination conditions, the conversion yield is hig

At

same amination conditions, the conversion yield is higher when PP-g-AN-IA fabrics react with EDA compared with PH. FT-IR data indicate that amine groups were introduced onto PP-g-AN-IA fabric through amide linkage between grafted PP2 supplier AN or IA and EDA or PH. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 119: 3483-3489, 2011″
“Understanding of the control of metabolic pathways in plants requires direct measurement of the metabolic turnover rate. Sugar phosphate metabolism, including the Calvin cycle, is the primary pathway in C-3 photosynthesis, the dynamic status of which has not been assessed quantitatively in the leaves of higher plants. Since the flux of photosynthetic carbon

metabolism is affected by the CO2 fixation rate in leaves, a novel in vivo C-13-labelling system was developed with (CO2)-C-13 for the kinetic determination of metabolic turnover that was the time-course of the C-13-labelling ratio in each metabolite. The system is equipped with a gas-exchange chamber that enables real-time monitoring of the CO2 fixation rate and a freeze-clamp that excises a labelled leaf concurrently with GSK3326595 mw quenching the metabolic reactions by liquid nitrogen within the photosynthesis chamber. Kinetic measurements were performed by detecting mass isotopomer abundance with capillary electrophoresis-tandem mass spectrometry. The multiple reaction monitoring method was optimized for the determination of each compound for sensitive detection because the amount of some sugar phosphates in plant cells is extremely small. Our analytical system enabled the in vivo turnover of sugar phosphates to be monitored in fresh tobacco (Nicotiana tabacum) leaves, which revealed that the turnover rate of glucose-1-phosphate (G1P) was significantly lower than that of other sugar phosphates, including glucose-6-phosphate (G6P). The pool size of G1P is 12 times lower than that of G6P. These results indicate that the conversion of G6P to G1P is one of the rate-limiting

steps in the sugar phosphate pathway.”
“In this study, electrospinning was used to fabricate silk-fibroin (SF)-based mats, which served as substrates for Crenigacestat price the culturing of rat Schwann cells. Microscopic observation and physical parameter measurements revealed that the electrospun SF mats had a nanofibrous structure with favorable physical properties. Fourier transform infrared analysis provided chemical characterization of the molecular confirmation of the SF proteins in the mats. The morphology and immunocytochemistry showed that the mats supported the survival and growth of the cultured Schwann cells, and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide analysis indicated that the electrospun SF mat extract had no cytotoxic effects on Schwann cell proliferation.

Methods

A web-based survey was developed including the CH

Methods

A web-based survey was developed including the CHU9D and HUI2 instruments and administered to a community-based sample of consenting adolescents (n = 710) aged 11-17 years. The practicality, face and construct validity of the CHU9D was examined. The relationship between the CHU9D and HUI2 instruments was assessed by a comparison of responses to similar dimensions and the utility scores derived from the two instruments.

Results The CHU9D demonstrated high completion rates. CHU9D was able to discriminate between respondents according to their self-reported general health (Kruskal-Wallis P value <0.001). The mean CHU9D adolescent population utilities were similar to those generated from the HUI2 [Mean (SD) CHU9D utility 0.844 (0.102) and HUI2 utility 0.872 selleckchem (0.138)], and the intra-class correlation coefficient indicated good levels of agreement HIF inhibitor overall (ICC = 0.742).

Conclusion The findings from this study provide support for the practicality, face and construct validity of the CHU9D for application with adolescents aged 11-17 years.”
“Background: Clinical malaria has

proven an elusive burden to enumerate. Many cases go undetected by routine disease recording systems. Epidemiologists have, therefore, frequently defaulted to actively measuring malaria in population cohorts through time. Measuring the clinical incidence of malaria longitudinally is labour-intensive and impossible to undertake universally. There is a need, therefore, to define a relationship between clinical incidence and the easier and more commonly measured index of infection prevalence: the “”parasite rate”". This relationship can help provide an informed basis to define malaria burdens in areas where health statistics are inadequate.

Methods: Caspase inhibitor Formal literature searches were conducted for Plasmodium falciparum malaria incidence surveys undertaken prospectively

through active case detection at least every 14 days. The data were abstracted, standardized and geo-referenced. Incidence surveys were time-space matched with modelled estimates of infection prevalence derived from a larger database of parasite prevalence surveys and modelling procedures developed for a global malaria endemicity map. Several potential relationships between clinical incidence and infection prevalence were then specified in a non-parametric Gaussian process model with minimal, biologically informed, prior constraints. Bayesian inference was then used to choose between the candidate models.

Results: The suggested relationships with credible intervals are shown for the Africa and a combined America and Central and South East Asia regions. In both regions clinical incidence increased slowly and smoothly as a function of infection prevalence. In Africa, when infection prevalence exceeded 40%, clinical incidence reached a plateau of 500 cases per thousand of the population per annum.


“In this study, we explored different statistical


“In this study, we explored different statistical

approaches to identify the best algorithm to predict EQ-5D utility scores from the NEI-VFQ 25 in patients with age-related macular degeneration (AMD).

Ordinary least squares (OLS), Tobit, and censored least absolute deviation (CLAD) approaches were compared using cross-sectional data (primary dataset, n = 151) at screening from a phase I/II clinical trial in patients with AMD. Three models were specified in this study: full (includes all 12 dimensions of the NEI-VFQ 25), short (includes only the general health dimension and the composite score), and reduced model (using stepwise regression). To evaluate the predictive accuracy of the models, the mean absolute prediction

error (MAPE), mean error, and root means squared error were calculated using in-sample cross-validation (within FK228 the primary dataset) and out-of-sample validation using an independent dataset (n = 393). The model that provided the lowest prediction errors was chosen as the best model.

In-sample cross-validation and out-of-sample validation consistently demonstrated that, compared to other approaches, heteroscedasticity-adjusted OLS produced the lowest MAPE (mean values were 0.1400, selleck chemical 0.1593, respectively) for the full model, while CLAD performed best for the short and reduced models (mean values were 0.1299, 0.1483,

respectively). The normality and homoscedasticity assumptions of both OLS and Tobit were rejected. CLAD, however, can accommodate these particular violations.

The CLAD-short model is recommended for producing the EQ-5D utility scores when only the NEI-VFQ 25 data are available.”
“Objectives: To compare selleck kinase inhibitor epidemiological aspects of young (15 to 49 years old) and older (more than 50 years old) AIDS patients.

Methods: We analyzed 511,633 AIDS cases notified to the Brazilian Ministry of Health in the period of 1980-2008 looking at sex, age ranges, educational level and exposure category. Patients were divided into three age groups: under 15, from 15 to 49 and over 50 years old. Using a comparative approach, we analyzed data with regard to category of exposure, education (expressed in years of schooling), and sex ratio among younger (15-49) and older adults (over 50 years old). Time series data were log-transformed and normalized, and the temporal trend was evaluated.

Results: AIDS incidence is increasing among people over 50 years old in Brazil, with those older than 50 being responsible for 9.64 % of AIDS cases. There was no significant difference between educational level and gender (p = 0.468), but there was a significant difference in exposure category with a lower proportion of injecting drug users amongst the older group.

Blood vessels exhibited a hemangiopericytomatous

Blood vessels exhibited a hemangiopericytomatous EPZ004777 purchase pattern and boomerang-like features. Immunohistochemical results were as follows: vimentin, 14/14 cases positive; smooth muscle actin, 14/14 cases positive; desmin, 14/14 cases positive; CD 99, 4/14 cases positive; inhibin-alpha, 14/14 cases positive; oestrogen receptor, 0/14 cases positive; progesterone receptor, 2/14 cases positive.

The characteristic histopathological

features we observed in our study are usually adequate for the diagnosis of SSTs. Although inhibin-alpha, CD 99 and desmin staining may be a useful and reliable tool for SST diagnosis in problematic cases, an immunohistochemical panel will not discriminate from other tumours in the sex cord-stromal group.”
“To develop conjugated polymers with low bandgap, deep HOMO level, and good solubility, a new conjugated alternating copolymer PC-DODTBT based on N-9′-heptadecanyl-2,7-carbazole and 5, 6-bis(octyloxy)-4,7di(thiophen-2-yl) benzothiadiazole was synthesized by Suzuki cross-coupling polymerization reaction. The polymer reveals excellent

solubility and thermal stability with the decomposition temperature (5% weight loss) of 327 degrees C. The HOMO level of PC-DODTBT is -5.11 eV, indicating that the polymer has relatively deep HOMO level. The hole mobility of PC-DODTBT as deduced from SCLC method was found to be 2.03 x 10(-4) cm(2)/Versus Polymer solar

cells (PSCs) based on the blends of PC-DODTBT and [6,6]-phenyl-C-71-butyric acid methyl ester (PC71BM) with a weight Dorsomorphin mouse ratio of 1:2.5 were fabricated. Under AM 1.5 (AM, air mass), 100 mW/cm(-2) illumination, the devices were found to exhibit an open-circuit voltage (V-oc) of 0.73 V, short-circuit current density (J(sc)) of 5.63 mA/cm(-2), and a power conversion efficiency (PCE) of 1.44%. This photovoltaic performance indicates that the copolymer is promising for polymer solar cells applications. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 123: 99-107, 2012″
“An ab initio Bioactive Compound Library price calculation based on density functional theory is applied to study the new source of p-type conductivity in Li-N codoped ZnO. The calculated results show that the interstitial Li (Li(i)) easily binds with the substitutional Li defect at the Zn site (Li(Zn)) and the substitutional N defect at the O site (N(O)). This induces the formation of Li(i)-Li(Zn) and Li(i)-N(O) passive complex. However, only Li(i)-N(O) can introduce an impurity band above the valence band maximum of the pure ZnO and decrease the ionization energies of the relative complexes. The possible configurations of Li(i)-N(O) combining with other additional acceptors Li(Zn) and N(O) are discussed. It is found that N(O)-Li(i)-N(O) may be a possible source of p-type conductivity under Zn-rich conditions. (C) 2011 American Institute of Physics. [doi:10.1063/1.