M.S. Russell and R.L. Burch. The concomitance of the anniversaries of the two publications is not a coincidence, since, as reflected by the numerous quotes chosen by Russell from Darwin’s masterpiece, numerous analogies can be found between the two works and the new ideas they describe. From a discrete birth, and after decades of struggle, the Three Rs concept can now celebrate its 50th anniversary, the result of its evolution through harsh selection and adaptation. The emergence of new types of techniques, in combination with the descent of modified old ones, testify to the undeniable change in our

society toward a more efficient and more ethical science, through the progressive replacement of animal models. Both Darwin and Navitoclax cell line Russell would no doubt have welcomed

such progress, not only in terms of science, but also of moral values. One could also expect that, if Russell could have foreseen the incredible technological advances achieved 50 years later, where Replacement becomes a reality, as illustrated by some edifying examples, The Principles of Humane Experimental Technique would have probably been defined as the One R concept.”
“For regression on state and transition probabilities in multi-state models Andersen et al. (Biometrika 90:15-27, 2003) propose a technique based on jackknife pseudo-values. In this article we analyze the pseudo-values Stattic research buy suggested for competing risks models

and prove some conjectures regarding their asymptotics (Klein and Andersen, Biometrics LY2606368 purchase 61:223-229, 2005). The key is a second order von Mises expansion of the Aalen-Johansen estimator which yields an appropriate representation of the pseudo-values. The method is illustrated with data from a clinical study on total joint replacement. In the application we consider for comparison the estimates obtained with the Fine and Gray approach (J Am Stat Assoc 94:496-509, 1999) and also time-dependent solutions of pseudo-value regression equations.”
“Background: The AmpC beta-lactamase (AmpC)-producing Enterobacteriaceae emerged worldwide. This study was conducted to determine the risk factors of community-onset urinary tract infections (UTIs) caused by plasmid-mediated AmpC-producing Enterobacteriaceae. Methods: Patients who were diagnosed as community-onset UTIs caused by Enterobacteriaceae in a tertiary-care teaching hospital from December 2010 to January 2012 were included. Extended-spectrum beta-lactamase (ESBL)-producing isolates were excluded. We identified plasmid-mediated AmpC-producing Enterobacteriaceae both phenotypically (by disk potentiation test and double-disk synergy test) and genotypically (by Multiplex polymerase chain reaction (PCR) assay).

The frames are often designed carefully based on the strong-column-weak-beam concept and their joints detailed accordingly. Sometimes, though, the

detailing is inadequate (example, RC joints designed to earlier codes have insufficient lateral resistance). Web-bonded FRP (fibre reinforced plastic) is one of the few possible strengthening methods that can be used when an inadequately detailed joint is damaged causing severe degradation of the joint’s structural strength. In this paper, the results of some tests on FRP strengthened specimens are presented. The results show that the method is effective and capable of restoring or even upgrading the strength of the system. In addition, using the basic principles of equilibrium and compatibility, an analytical model is presented that simplifies the analysis and design of this strengthening scheme. Based on the model, a range of design graphs are presented for selection https://www.selleckchem.com/products/ly-411575.html of the type and the amount of FRP required upgrading an existing joint to a specified moment capacity and curvature ductility. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.”
“Objectives: The purpose of this study was to give a brief review of the effectiveness of

otoacoustic emissions for KU-57788 supplier getting frequency-specific information about a hearing-loss problem in newborns after hearing screening. Especially, the advantages of distortion-product otoacoustic emissions (DPOAE) over transiently evoked otoacoustic emissions (TEOAEs) are described. Data Sources: Approximately 186 ears of 104 children aged between 76 days and 15 years and 436 ears of adults with normal

hearing and sensory hearing loss. Methods: Extrapolated DPOAE I/O-functions at frequencies between 1.5 and 6 kHz were obtained in the children for assessing the hearing loss and for differentiating SB203580 price between a transitory sound-conductive hearing loss and a persisting cochlear hearing loss. For getting information on the test time needed, measurements were performed in the adult patients. Results: DPOAE thresholds derived from extrapolated DPOAE I/O-functions (DPOAE audiograms) are closely related to behavior audiometric thresholds and can be used for determining characteristic quantities of the cochlear-impaired ear. A DPOAE audiogram can be obtained in a couple of minutes. DPOAE audiograms are able to reveal a transitory sound-conductive hearing loss because of Eustachian tube dysfunction and/or amniotic fluid in the tympanic cavity or to confirm a persisting cochlear hearing loss because of outer hair cell impairment in babies with a reference result in newborn hearing screening. Conclusion: DPOAE audiograms provide a tool for a fast automated frequency-specific and quantitative evaluation of a mild or moderate hearing in follow-up diagnosis.

From real-and reciprocal-space analyses, it was clearly identified that striped FM domains oriented to the c-axis appear with Bloch-type domain walls in the b-direction and order regularly along the a-axis with a constant separation less than 100 nm. Moreover, the magnetic chirality reverses in alternate FM domain walls. These specific

spin configuration of striped FM domains will affect the magnetic phase transition from the FM phase to the proper screw spiral phase at low temperature or to the FAN phase in magnetic fields in MnP.”
“The objective of this study was to analyze the impact of vaccination against Streptococcus pneumoniae on the Luminespib morbidity and mortality from pneumococcal meningitis in children smaller than = 2 years in Brazil, from 2007 to 2012. This is a descriptive study and ecological analysis using data

from the Information System on Notifiable Diseases. Prevaccination (2007-2009) and post-vaccination (2011-2012) periods RSL3 were defined to compare incidence rates and mortality. A total of 1,311 cases and 430 deaths were reported during the study period. Incidence decreased from 3.70/100,000 in 2007 to 1.84/100,000 in 2012, and mortality decreased from 1.30/100,000 to 0.40/100,000, or 50% and 69% respectively, with the greatest impact in the 6-11 month age group. This decrease in Pneumococcal meningitis morbidity and mortality rates two years after introduction of the 10-valent pneumococcal conjugate vaccine suggests its effectiveness.”
“The stable isotopic composition of fossil resting eggs (ephippia) of Daphnia spp. is being used to reconstruct past environmental conditions in lake ecosystems. However, the underlying assumption that the stable isotopic composition of the ephippia reflects the stable isotopic composition

of the parent Daphnia, of their diet and of the environmental water have yet to be confirmed in a controlled experimental setting. We performed experiments with Daphnia pulicaria cultures, which included a control MEK162 inhibitor treatment conducted at 12 A degrees C in filtered lake water and with a diet of fresh algae and three treatments in which we manipulated the stable carbon isotopic composition (delta C-13 value) of the algae, stable oxygen isotopic composition (delta O-18 value) of the water and the water temperature, respectively. The stable nitrogen isotopic composition (delta N-15 value) of the algae was similar for all treatments. At 12 A degrees C, differences in algal delta C-13 values and in delta O-18 values of water were reflected in those of Daphnia. The differences between ephippia and Daphnia stable isotope ratios were similar in the different treatments (delta C-13: +0.2 +/- 0.4 parts per thousand (standard deviation); delta N-15: -1.6 +/- 0.4 parts per thousand; delta O-18: -0.9 +/- 0.4 parts per thousand), indicating that changes in dietary delta C-13 values and in delta O-18 values of water are passed on to these fossilizing structures.

The CNT/PANI

composites exhibit much higher equilibrium adsorption capacity of 13.95 mg g(-1) at an initial MG concentration of 16 mg L-1, increasing by 15% than the neat PANI, which is mainly attributed to large surface areas and strong CNT-PANI interactions of the composites. In addition, theoretical analyses indicate that the adsorption kinetics and the isothermal process of the composites can be well explained by using the Ho pseudosecond-order model and the Langmuir model, respectively. In light of their high MG adsorption and easy operation, the CNT/PANI composites have great potential as high-efficiency adsorbents for removal of dyes from wastewater. (C) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 127: 2475-2482, 2013″
“This paper presents an in-depth theoretical examination of graphene-based field effect transistors, looking at thermal statistics, electrostatics, and electrodynamics. Using a first principles AZD7762 approach, the unique behavior observed in graphene-based field effect transistors, such as the

V-shaped transfer characteristic, limited channel pinch-off, and lack of off-state ( under gate modulation), are described. Unlike previous attempts, a description of both drift and diffusion currents in the device is presented. The effect CT99021 of external resistance on steady-state and high-frequency performance is examined. Comparisons of the theoretical results to experimental results are made and show good agreement. Finally, the theoretical work in this paper is used as a basis to discuss the possible source of some observed behavior in practical graphene-based field effect transistors. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3573517]“
“Patients

with generalized anxiety disorder (GAD) Danusertib ic50 experience psychological distress because of excessive and uncontrollable anxiety in everyday life. Only a few morphological studies have so far focused on specific brain regions of interest as well as the gray matter volume changes in GAD patients. This study evaluated gray matter volume alterations in whole-brain areas between GAD patients and healthy controls, and sex differences between the specific brain areas with significant volume changes in GAD patients using voxel-based morphometry. Twenty-two patients with GAD (13 men and nine women), who were diagnosed using the DSM-IV-TR, and 22 age-matched healthy controls (13 men and nine women) participated in this study. The high-resolution MRI data were processed using voxel-based morphometry analysis on the basis of diffeomorphic anatomical registration through an exponentiated Lie algebra algorithm in Statistical Parametric Mapping 8. There was no significant difference in the total intracranial volume between GAD patients and controls, but a significant difference was observed between sexes (P smaller than 0.05).

Long-term follow-up angiography in 29 patients (81%) revealed the absence of restenosis, defined as > 50% luminal narrowing, in all of them.\n\nConclusions. The clinical and angiographic long-term outcomes demonstrated here suggest that VA-SA transposition will be Useful in patients AZD7762 supplier with symptomatic stenosis of VA origin. (DOI: 10.3171/2008.10.JNS08687)”
“Expansions

of simple DNA repeats cause numerous hereditary diseases in humans. We analyzed the role of DNA polymerases in the instability of Friedreich’s ataxia (GAA)(n) repeats in a yeast experimental system. The elementary step of expansion corresponded to similar to 160 bp in the wild-type strain, matching the size of Okazaki fragments in yeast. This step increased when DNA

polymerase alpha was mutated, suggesting a link between the scale of expansions and Okazaki fragment size. Expandable repeats strongly elevated the rate of mutations at substantial distances around them, a phenomenon we call repeat-induced mutagenesis (RIM). Notably, defects in the replicative SB203580 research buy DNA polymerases delta and epsilon strongly increased rates for both repeat expansions and RIM. The increases in repeat-mediated instability observed in DNA polymerase delta mutants depended on translesion DNA polymerases. We conclude that repeat expansions and RIM are two sides of the same replicative mechanism.”
“Background: Diabetes is a selleck risk factor for perioperative complications after cardiac surgery. We studied its effects on mesenteric endothelial function in a cardiopulmonary bypass (CPB) model.\n\nMethods: Forty Wistar rats were divided into

four groups: sham (D-CPB-), cardiopulmonary bypass (D-CPB+), diabetic (D+CPB-) and diabetic that have undergone CPB (D+CPB+). Two samples of mesenteric artery were used for nitric oxide synthase (NOS) Western blot analysis, and two others for assessing contractile response and endothelium relaxations. Nitrite products and tumour necrosis factor-alpha (TNF-alpha) were assessed as markers of inflammatory response.\n\nResults: We observed an enhanced contractile response to the alpha-adrenergic agonist associated with impairment of mesenteric vasorelaxation in D+CPB+ rats. Western immunoblot analysis of D+CPB+ highlighted an additive effect of hyper-expression of inducible NOS. A significantly increased inflammatory response was observed after CPB in diabetic animals.\n\nConclusions: This work confirms the potential deleterious impact of diabetes on the mesenteric endothelium during CPB in cardiac surgery.”
“The aetiology of profound hearing loss in children is complex and multifactorial. Congenital inner ear abnormality is a major cause of hearing loss in children. CT temporal bone imaging is the modality of choice in the investigation of hearing loss. Recognising the congenital abnormalities of the inner ear guides the clinician’s management of the condition.

The mean lesion length was 20.7 +/- 10.3 cm. The majority of lesions were TASC (TASC I) C Metabolism inhibitor and D (81.4%). All lesions were pretreated with excimer laser and percutaneous transluminal angioplasty (PTA) prior to VIABAHN implantation. Technical success was achieved in 100% of cases. There were no MAE at 30 days. Primary patency at 12 months was 48%. The ankle brachial index increased from 0.58 +/- 0.24 at baseline to 0.90 +/- 0.17 at 12 months. There was improvement in all quality-of-life parameters.

The 12-month TLR rate was 17.4%. Conclusions The strategy of excimer laser atherectomy and PTA followed by implantation of a self-expanding stent graft for the treatment of femoropopliteal ISR is safe and associated with high procedural success. Primary patency rate at 12-months was suboptimal; however, the TLR rate was low. (c) 2012 Wiley Periodicals, Inc.”
“Activated

prothrombin complex concentrates (aPCC) and recombinant activated factor VIIa (rFVIIa) are two important therapies in haemophilia patients with inhibitors and improve clot stability. We hypothesized that potential differences in procoagulant and fibrinolytic actions of aPCC and rFVIIa may lie in the clot stability against fibrinolytic activation. We used thrombin generation, fluorescence detection and thromboelastometry in anti-factor IXa (FIXa) aptamer-treated whole SNX-5422 cell line blood (WB) and plasma to evaluate: (i) generation of thrombin and activated factor X (FXa) and (ii) viscoelastic properties of blood clots in the presence of tissue plasminogen activator (tPA) after addition of aPCC (0.4 U mL-1) or rFVIIa (60 nm). Peak thrombin generation increased from 85 +/- 19 nm in aptamer-treated plasma to 276 +/- 83 nm and 119 +/- 22 nm after addition of aPCC and rFVIIa respectively (P < 0.001). FXa activity increased within 20 min by 87 +/- 6% and by 660 +/- 97% after addition of aPCC and rFVIIa respectively (P < 0.001). TPA-induced lysis time increased from 458 +/- 378 s in aptamer-treated WB to 1597

+/- 366 s (P = 0.001) and 1132 +/- 214 s (P = 0.075), after addition of aPCC and rFVIIa respectively. In this haemophilia model using the anti-FIXa aptamer, the larger amount of thrombin was generated with aPCC compared with rFVIIa, while FXa generation selleck products was more rapidly increased in the presence of rFVIIa. Furthermore, clot formation in anti-FIXa aptamer-treated WB was less susceptible to tPA-induced fibrinolysis after adding aPCC compared with rFVIIa.”
“Sugar cane is widely used in an in natura forage in tropical countries, but the adoption of silage methods facilitates the preservation of its nutritional value and improves the logistics of its use. To explain differences in performance using alternative forages, it is important to conduct studies that evaluate the various digestion sites for the nutrients provided in diets.

Copyright (c) 2012 John Wiley & Sons, Ltd.”
“Analyses of mice carrying a deletion

of the pan-neurotrophin receptor p75NTR have allowed identifying p75NTR as an important structural regulator of the hippocampus. Most of the previous analyses were done using p75NTR(Exiii) knockout mice which still express the short isoform of p75NTR. To scrutinize the role of p75NTR in the hippocampus, we analyzed adult and aged p75NTR(ExIV) knockout mice, in which both, the LY3039478 Stem Cells & Wnt inhibitor short and the full-length isoform are deleted. Deletion of these isoforms induced morphological alterations in the adult dentate gyrus (DG), leading to an increase in the thickness of the molecular and granular layer. Based on these observations, we next determined the morphological substrates that

might contribute to this phenotype. The cholinergic innervation of the molecular and granular layer of the DG was found to be significantly increased in the knockout mice. Furthermore, adult neurogenesis in the DG was found to be significantly altered with increased numbers of doublecortin (DCX) positive cells and reduced numbers of apoptotic cells in p75NTR(ExIV) knockout mice. However, cell proliferation as measured by phosphohiston H3 (PH3) positive cell numbers was not affected. AZD8186 purchase These morphological alterations (number of DCX-positive cells and increased cholinergic fiber densities) as well as reduced cell death in the DG are likely to contribute to the observed thickening of the granular layer

in p75NTR(ExIV) knockout mice. In addition, Sholl-analysis of DCX-positive neurons revealed a higher dendritic complexity and could thus be a possible morphological correlate for the increased thickness of the molecular see more layer in p75NTR deficient animals. Our data clearly demonstrate that deletion of both, the short and the full-length isoform of p75NTR affects DG morphology, due to alterations of the cholinergic system and an imbalance between neurogenesis and programmed cell death within the subgranular zone.”
“PURPOSE: To evaluate the effects of transpupillary thermotherapy and intravitreal bevacizumab injection on serous macular detachment and cystoid macular edema (CME) associated with circumscribed choroidal hemangioma.\n\nDESIGN: Retrospective, interventional case series.\n\nMETHODS: We reviewed the records of 12 patients with circumscribed choroidal hemangioma treated with transpupillary thermotherapy and/or intravitreal injection of bevacizumab. We assessed changes in best-corrected visual acuity (BCVA), central foveal thickness by optical coherence tomography, and resolution of serous macular detachment and CME.\n\nRESULTS: Six of 8 patients treated with transpupillary thermotherapy showed complete resolution of serous macular detachment and CME and the median minimal angle of resolution (logMAR) BCVA improved from 0.85 to 0.35 (P = .026).

006). The median duration of beta-lactam antibiotic before reaction onset was 25 days. Abdominal pain occurred in 9 patients (82%), fever in 3 (27%), and rash in 5 (45%). Seven patients (64%) developed a combination of thrombocytopenia, neutropenia, and/or lymphopenia and 6 (55%), elevated liver enzymes. Conclusions: This adverse reaction, occurring late during prolonged IV bolus beta-lactam treatment, is most often characterized by short-lived abdominal

pain occurring at the time of infusion and is more common in patients receiving benzyl penicillin. It is frequently associated with cytopenias and elevated liver enzymes. It may have both immunological and non-immunological mechanisms.”
“A new zinc(II)-cofactor coupled to a testosterone anchor, zinc(II)-N,N-bis(2-pyridylmethyl)-1,3-diaminopropa-2-ol-N’(17′-succinimidyltestosterone) learn more (Zn-Testo-BisPyPol) 1-Zn has been synthesized and fully characterized. It has been further associated with a neocarzinostatin AC220 mouse variant,

NCS-3.24, to generate a new artificial metalloenzyme following the so-called ‘Trojan horse’ strategy. This new 1-Zn-NCS-3.24 biocatalyst showed an interesting catalytic activity as it was found able to catalyze the hydrolysis of the RNA model HPNP with a good catalytic efficiency (k(cat)/K-m = 13.6 M-1 s(-1) at pH 7) that places it among the best artificial catalysts for this reaction. Molecular modeling GSK1838705A solubility dmso studies showed that a synergy between the binding of the steroid moiety and that of the BisPyPol into the protein binding site can

explain the experimental results, indicating a better affinity of 1-Zn for the NCS-3.24 variant than testosterone and testosterone-hemisuccinate themselves. They also show that the artificial cofactor entirely fills the cavity, the testosterone part of 1-Zn being bound to one the two subdomains of the protein providing with good complementarities whereas its metal ion remains widely exposed to the solvent which made it a valuable tool for the catalysis of hydrolysis reactions, such as that of HPNP. Some possible improvements in the ‘Trojan horse’ strategy for obtaining better catalysts of selective reactions will be further studied. (C) 2014 Elsevier Ltd. All rights reserved.”
“Leptin has an anorexigenic effect in fish, indicating a role in regulation of growth and energy homeostasis. The study aimed to further clarify the physiological role of leptin in rainbow trout, specifically its short-term response to feed intake after a period of fasting. Utilizing a salmonid leptin radioimmunoassay, the study demonstrates differences in plasma leptin levels in fishes with different nutritional status and at the onset of feeding. Some of the fasted fish were clearly in a state of anorexia, and did not initiate feeding during the 72 h refeeding period.

The I-2(+) ions result from (1 + 1) resonant ionization of the neutral I-2 fragment that is produced in the photodissociation of dimer, but not from dissociative ionization of (ICN)(2); i.e., (ICN)(2)(+)+ h nu -> I-2(+)+ 2CN. The dissociation channels of I-2(+) leading to I+ are all found with parallel character. The total kinetic energy distributions and anisotropy parameters of the I+ channels produced by (ICN)(2) are almost the same as those

Nutlin-3 in vitro from a neutral I-2 sample, thereby confirming that the I-2 fragments are obtained in cold state. With the aid of ab initio calculations, a plausible dissociation mechanism is proposed. (c) 2009 American Institute of Physics. [DOI: 10.1063/1.3148376]“
“Background The Family Health Strategy (FHS) has been implemented as a strategy for primary care GSK1904529A concentration improvement in Brazil. Working with teams that include one doctor, one nurse, auxiliary nurses and community health workers in predefined areas, the FHS began in 1994 (known then as the Family Health Program) and has since grown considerably. The programme has only recently undergone assessment of outcomes, in contrast to more routine evaluations of infrastructure and process.\n\nMethods

In 2001, a health survey was carried out in two administrative districts (with 190 000 inhabitants) on the outskirts of the city of Sao Paulo, both partially served by the FHS. Chronic morbidity (hypertension, diabetes and ischaemic heart disease) of individuals aged 15 or older was studied in areas covered and not covered by the programme. Stratified univariate analysis was applied for sex, age, education, income, working status and social insurance of these populations. Multivariate analysis was applied where applicable.\n\nResults

There was a distinct pattern in the morbidity profile of these populations, suggesting differentiated self-knowledge on chronic disease status in the areas served by the FHS.\n\nConclusion The FHS can increase population awareness of chronic diseases, possibly through increasing access to primary care.”
“Background The rate of new HIV infections in the UK continues to rise, with one-quarter of cases undiagnosed. Opt-out HIV testing – in which tests are routinely offered to all patients, with the offer to decline – have AZD7762 supplier proved effective in antenatal care. Pilot studies of HIV opt-out testing at GP registration and acute medical admission to hospital have described service-level issues and the clinician’s perspective, but not the views of the general public. Aim To further understand the public’s perspective on opt-out testing for HIV in England. Design and setting Focus groups [n = 9] with a total of 54 participants in Brighton, England, where HIV prevalence is high. Method Quota sampling on sexual orientation, age, sex, and testing experience was applied to groups with high and low HIV prevalences, and analysed using framework analysis. Results Opt-out testing for HIV was acceptable.

This system exhibits thermodynamic, dynamic, and structural anomalies: a maximum in density-temperature plane at constant pressure and maximum and minimum points in the diffusivity and translational order parameter against density at constant temperature. Starting with very dense systems and decreasing density the mobility at low temperatures first increases, reaches a maximum, then decreases, reaches a minimum and finally increases. learn more In the pressure-temperature

phase diagram the line of maximum translational order parameter is located outside the line of diffusivity extrema that is enclosing the temperature of maximum density line. We compare our results with the monomeric system showing that the anisotropy due to the dumbbell leads to a much larger solid phase and to the appearance of a liquid crystal phase. (C) 2010 American Institute of Physics. [doi:10.1063/1.3386384]“
“Clin Selleckchem GSK2399872A Microbiol Infect 2012; 18: 606612 Abstract Guidelines state that the CCR5-inhibitor Maraviroc should be prescribed to patients infected with R5-tropic HIV-1 only. Therefore, viral tropism needs to be assessed phenotypically or genotypically. Preliminary clinical

trial data suggest that genotypic analysis in triplicate is associated with improved prediction of virological response by increasing the detection of X4-tropic variants. Our objective was to evaluate the impact of triplicate genotypic analysis on prediction of co-receptor usage in routine clinical practice. Samples from therapy-naive and therapy-experienced patients were collected for routine tropism testing at three European clinical centres. Viral RNA was isolated from plasma and proviral DNA from peripheral blood mononuclear

cells. Gp120-V3 was amplified in a triplicate nested RT-PCR procedure and sequenced. BAY 73-4506 Co-receptor usage was predicted using the Geno2Pheno[coreceptor] algorithm and analysed with a false-positive rate (FPR) of 5.75%, 10%, or an FPR of 20% and according to the current European guidelines on the clinical management of HIV-1 tropism testing. A total of 266 sequences were obtained from 101 patient samples. Discordance in tropism prediction for the triplicates was observed in ten samples using an FPR of 10%. Triplicate testing resulted in a 16.7% increase in X4-predicted samples and to reclassification from R5 to X4 tropism for four cases rendering these patients ineligible for Maraviroc treatment. In conclusion, triplicate genotypic tropism testing increases X4 tropism detection in individual cases, which may prove to be pivotal when CCR5-inhibitor therapy is applied.”
“Brown single crystals of the potassium-manganese arsenate K2Mn3(AsO4)(3) were prepared by solid-state reaction and characterized by X-ray diffraction, infrared spectroscopy and complex impedance measurements. The compound crystallizes in the monoclinic space group C2/c with a = 12.490(1) , b = 13.013(1) , c = 6.888(1) , beta = 114.46(2)A degrees and Z = 4.