bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: 119Sn Moessbauer Characterization of Self‐Assembled Organotin(IV) Complexes with Schiff Bases Containing Amino Acetate Skeletons
Authors: Basu Smita , Mizar Archana , Baul Tushar S. Basu , Rivarola Eleonora 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: High‐Throughput Monitoring of Interconverting Stereoisomers and Catalytic Reactions
Authors: Trapp Oliver 
Published: November 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
A web site for calculating the degree of chirality
Authors: Zayit Amir , Pinsky Mark , Elgavi Hadassah , Dryzun Chaim , Avnir David 
Published: November 2009

AbstractThe web site, http://www.csm.huji.ac.il/, uses the Continuous Chirality Measure to evaluate quantitatively the degree of chirality of a molecule, a structure, a fragment. The value of this measure ranges from zero, the molecule is achiral, to higher values (the upper limit is 100); the higher the chirality value, the more chiral the molecule is. The measure is based on the distance between the chiral molecule and the nearest structure that is achiral. Questions such as the following can be addressed: by how much is one molecule more chiral than the other? how does chirality change along conformational motions? is there a correlation between chirality and enantioselectivity in a series of molecules? Both elementary and advanced features are offered. Related calculation options are the symmetry measures and shape measures. Chirality, 2011. © 2009 Wiley‐Liss, Inc.
Urinary diversion and morbidity after radical cystectomy for bladder cancer
Authors: Gore John L. , Yu Hua‐Yin , Setodji Claude , Hanley Jan M. , Litwin Mark S. , Saigal Christopher S. 
Published: November 2009

AbstractBACKGROUND:The rate of continent urinary diversion after radical cystectomy for bladder cancer varies by patient and provider characteristics. Demonstration of equivalent complication rates, independent of diversion type, may decrease provider reluctance to perform continent reconstructions. The authors sought to determine whether continent reconstructions confer increased complication rates after radical cystectomy.METHODS:From the Nationwide Inpatient Sample, the authors used International Classification of Disease (ICD‐9) codes to identify subjects who underwent radical cystectomy for bladder cancer during 2001‐2005. They determined acute postoperative medical and surgical complications from ICD‐9 codes and compared complication rates by reconstruction type using the nearest neighbor propensity score matching method and multivariate logistic regression models.RESULTS:Adjusting for case‐mix differences between reconstructive groups, continent diversions conferred a lower risk of medical, surgical, and disposition‐related complications that was statistically significant for bowel (3.1% lower risk; 95% confidence interval [95% CI], −6.8% to −0.1%), urinary (1.2% lower risk; 95% CI, −2.3%, to −0.4%), and other surgical complications (3.0% lower risk; 95% CI, −6.2% to −0.4%), and discharge other than home (8.2% lower risk; 95% CI, −12.1% to −4.6%) compared with ileal conduit subjects. Older age and certain comorbid conditions, including congestive heart failure and preoperative weight loss, were associated with significantly increased odds of postoperative medical and surgical complications in all subjects.CONCLUSIONS:Mode of urinary diversion after radical cystectomy for bladder cancer is not associated with increased risk of immediate postoperative complications. These results may encourage broader consideration of continent urinary diversion without concern for increased complication rates. Cancer 2010. © 2010 American Cancer Society.
Synthesis and morphology of nanosized zeolite L
Authors: Hassani S. Sadegh , Salehirad F. , Aghabozorg H. R. , Sobat Z. 
Published: November 2009

AbstractAFM is a powerful tool for imaging nanoscale surface features; it provides two and three dimensional crystal structure images and other information about actual surface of zeolite crystallites. In this paper, nanosized zeolite L is synthesized in different crystallization times and a study of crystal growth of zeolite L is reported using atomic force microscopy (AFM). X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) techniques are used for characterization of the as synthesized samples. TEM and two‐dimensional AFM images indicate that the zeolite particles are in a nano‐range and they have hexagonal structure. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Facile hydrothermal synthesis of uniform 3D γ‐AlOOH architectures assembled by nanosheets
Authors: Liang Hui , Liu Ling , Yang Zhijie , Yang Yanzhao 
Published: November 2009

AbstractUniform γ‐AlOOH architectures assembled by nanosheets were successfully synthesized in the mixture of deinonized water and dimethyl sulfoxide (DMSO) at 180 °C. The structure and morphology of products were characterized by X‐ray diffraction analysis (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The products displayed 3D microstructures with its length of 1 μm and diameter of 400‐500 nm. The obtained γ‐AlOOH structures exhibited large Brunauer‐Emmett‐Teller (BET) surface area of 216.5 m2/g and pore size of 3.7 nm. The formation mechanism of 3D γ‐AlOOH architectures was also discussed based on the experimental results. Furthermore, the γ‐AlOOH architectures exhibited preliminary photoluminescence (PL) phenomenon with a strong peak at 323 nm. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Preparation of shuttle‐like Sb2S3 nanorod‐bundles via a solvothermal approach under alkaline condition
Authors: Zhang Ling , Chen Lei , Wan Hongqi , Zhoul Huidi , Chen Jianmin 
Published: November 2009

AbstractUniform shuttle‐like Sb2S3 nanorod‐bundles were synthesized via a polyvinylpyrrolidone (PVP) assisted solvothermal approach under alkaline condition, using antimony chloride (SbCl3) and thiourea (CH4N2S, Tu) as the starting materials in ethanol. The phase structure, composition and morphology of the product were characterized by means of X‐ray diffraction (XRD), energy dispersive X‐ray spectrometry (EDS), transmission electron microscopy (TEM), and high‐resolution transmission electron microscopy (HRTEM). XRD and EDS results confirm that the synthesized Sb2S3 nanorod‐bundles have an orthorhombic structure and an atomic ratio of 3:2 for S:Sb. TEM and HRTEM results show that the shuttle‐like Sb2S3 bundles are composed of nanorods with a size distribution of 20‐40 nm and growing along c‐axis. Furthermore, experiments under different reaction conditions were carried out and the mechanism for the growth of nanorod‐bundles was discussed (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Controllable synthesis and field emission properties of In2O3 nanostructures
Authors: Bai Dan , Zhang Zhi , Li Lijun , Xu Feng , Yu Ke 
Published: November 2009

AbstractLarge‐scale In2O3 nanorods, nanocubes and nanowires have been successfully synthesized by chemical vapor deposition route under atmospheric pressure. The structures and morphologies were characterized by x‐ray diffraction (XRD), scanning election microscopy (SEM) and high‐resolution transmission electron microscopy (HRTEM). The growth mechanisms of these In2O3 nanostructures were analyzed in detail based on the experimental results. Field‐emission measurements of these nanostructures demonstrated that nanorods with rectangular cross‐section possessed good performance with a turn‐on field of 2.47 Vμm–1 and a field enhancement factor of 4597. The room‐temperature photoluminescence (PL) spectrum of the In2O3 nanostructure showed UV emission centered at about 396 nm and visible emissions located at 541 and 623 nm. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Cytological features of cystadenocarcinoma in cyst fluid of the parotid gland: Diagnostic pitfalls and literature review
Authors: Kawahara Akihiko , Harada Hiroshi , Mihashi Hiroyuki , Akiba Jun , Kage Masayoshi 
Published: November 2009

AbstractCystadenocarcinoma is a rare malignant tumor, with an estimated incidence of 2% of malignant salivary gland tumors. Cytological diagnosis of cystadenocarcinoma is important for differential diagnosis between benign lesions and malignant tumors with cystic growth. We report a case of cystadenocarcinoma causing difficulty in cytological diagnosis. A 23‐year‐old man presented with an asymptomatic mass in the left parotid gland that had been present for 2 years. The mass was elastic hard, measuring 30 × 35 mm in diameter. Preoperative fine‐needle aspiration cytology (FNAC) showed a small number of tumor cell clusters in the cystic fluid. The cluster was arranged in a ball‐like structure and was cohesive with overlapping. Tumor cells had a small vacuolated, soap‐bubble appearance in the cytoplasm. The papillary‐cystic variant of acinic cell carcinoma (ACC‐PCV) was suggested from these findings on FNAC. Histologically, the tumor was not encapsulated, but formed large cystic spaces against a background of fibrous connective tissue. The tumor cells in the cystic dilated duct showed papillary structures, which were continuous with the lining cuboidal cells. There was neither a definite double‐layered arrangement in cystic ducts and solid islands nor histological findings characteristic of the papillary‐cystic or follicular pattern of ACC‐PCV. As tumor cells with a small vacuolated, soap‐bubble appearance of the cytoplasm are common findings of both cystadenocarcinoma and ACC‐PCV, they are of little use for differentiation; however, they are so characteristic that the majority of benign salivary gland lesions with cystic structures can be excluded, if enough attention is paid. Diagn. Cytopathol. 2010. © 2009 Wiley‐Liss, Inc.
Detection of the arylpropionamide‐derived selective androgen receptor modulator (SARM) S‐4 (Andarine) in a black‐market product
Authors: Thevis Mario , Geyer Hans , Kamber Matthias , Schänzer Wilhelm 
Published: November 2009

AbstractNon‐steroidal and tissue‐selective anabolic agents such as selective androgen receptor modulators (SARMs) represent a promising class of therapeutics for the treatment of various diseases such as sarcopenia or cancer cachexia. Advanced compounds of SARMs are based on an arylpropionamide‐derived structure and leading drug candidates have successfully completed phase‐II‐clinical trials. Although none of these therapeutics have been approved, their performance‐enhancing qualities and the black‐market availability of these products makes them a viable target for misuse in the athletic community. In 2008, SARMs were added to the Prohibited List established by the World Anti‐Doping Agency (WADA). That SARMs are the subject of misuse even without clinical approval was proved for the first time by the detection of the drug candidate Andarine (also referred to as S‐4, S‐3‐(4‐acetylamino‐phenoxy)‐2‐hydroxy‐2‐methyl‐N‐(4‐nitro‐3‐trifluoromethyl‐phenyl)‐propionamide), advertised, sold and supplied via the Internet. The oily liquids, declared as green tea extracts and face moisturizer, were assayed using state‐of‐the‐art analytical procedures and S‐4 was found at concentrations of approximately 150 mg/mL. The authenticity of the product was demonstrated in comparison to reference material by liquid chromatography, high resolution/high accuracy (tandem) mass spectrometry using positive and negative electrospray ionization, and comparison to reference material. Moreover, an impurity resulting from poor product purification was detected, accounting for approximately 10% of S‐4. This consisted of 2‐hydroxy‐2‐methyl‐N‐(4‐nitro‐3‐trifluoromethyl‐phenyl)‐3‐(4‐nitro‐3‐trifluoromethyl‐phenylamino)‐propionamide.The ease of purchasing non‐approved drug candidates that could potentially increase athletic performance demonstrates the need to operate proactively in the continued fight against doping. The early inclusion of emerging drugs into routine sports drug testing procedures is a key element of preventive doping research, limiting the options for cheating athletes who aim to undermine the doping control system. Copyright © 2009 John Wiley & Sons, Ltd.
The PAX258 gene subfamily: A comparative perspective
Authors: Goode Debbie K. , Elgar Greg 
Published: November 2009

AbstractWhole genome duplication events are thought to have substantially contributed to organismal complexity, largely via divergent transcriptional regulation. Members of the vertebrate PAX2, PAX5 and PAX8 gene subfamily derived from an ancient class of paired box genes and arose from such whole genome duplication events. These genes are critical in establishing the midbrain‐hindbrain boundary, specifying interneuron populations and for eye, ear and kidney development. Also PAX2 has adopted a unique role in pancreas development, whilst PAX5 is essential for early B‐cell differentiation. The contribution of PAX258 genes to their collective role has diverged across paralogues and the animal lineages, resulting in a complex wealth of literature. It is now timely to provide a comprehensive comparative overview of these genes and their ancient and divergent roles. We also discuss their fundamental place within gene regulatory networks and the likely influence of cis‐regulatory elements over their differential roles during early animal development. Developmental Dynamics 238:2951–2974, 2009. © 2009 Wiley‐Liss, Inc.
Cis‐regulatory mechanisms of gene expression in an olfactory neuron type in Caenorhabditis elegans
Authors: Nokes Eva B. , Van Der Linden Alexander M. , Winslow Caron , Mukhopadhyay Saikat , Ma Kristin , Sengupta Piali 
Published: November 2009

AbstractThe generation of cellular diversity is dependent on the precise spatiotemporal regulation of gene expression by both cis‐ and trans‐acting mechanisms. The developmental principles regulating expression of specific gene subsets in individual cell types are not fully understood. Here we define the cis‐regulatory mechanisms driving expression of cell‐selective and broadly expressed genes in vivo in the AWB olfactory neuron subtype in C. elegans. We identify an element that is necessary to drive expression of neuron‐selective chemoreceptor genes in the AWB neurons, and show that this element functions in a context‐dependent manner. We find that the expression of broadly expressed sensory neuronal genes in the AWB neurons is regulated by diverse cis‐ and trans‐regulatory mechanisms that act partly in parallel to the pathways governing expression of AWB‐selective genes. We further demonstrate that cis‐acting mechanisms driving gene expression in the AWB neurons appear to have diverged in related nematode species. Our results provide insights into the cis‐regulatory logic driving cell‐specific gene expression, and suggest that variations in this logic contribute to the generation of functional diversity. Developmental Dynamics 238:3080–3092, 2009. © 2009 Wiley‐Liss, Inc.
Morphogenesis of the primitive gut tube is generated by Rho/ROCK/myosin II–mediated endoderm rearrangements
Authors: Reed Rachel A. , Womble Mandy A. , Dush Michel K. , Tull Rhesa R. , Bloom Stephanie K. , Morckel Allison R. , Devlin Edward W. , Nascone‐Yoder Nanette M. 
Published: November 2009

AbstractDuring digestive organogenesis, the primitive gut tube (PGT) undergoes dramatic elongation and forms a lumen lined by a single‐layer of epithelium. In Xenopus, endoderm cells in the core of the PGT rearrange during gut elongation, but the morphogenetic mechanisms controlling their reorganization are undetermined. Here, we define the dynamic changes in endoderm cell shape, polarity, and tissue architecture that underlie Xenopus gut morphogenesis. Gut endoderm cells intercalate radially, between their anterior and posterior neighbors, transforming the nearly solid endoderm core into a single layer of epithelium while concomitantly eliciting “radially convergent” extension within the gut walls. Inhibition of Rho/ROCK/Myosin II activity prevents endoderm rearrangements and consequently perturbs both gut elongation and digestive epithelial morphogenesis. Our results suggest that the cellular and molecular events driving tissue elongation in the PGT are mechanistically analogous to those that function during gastrulation, but occur within a novel cylindrical geometry to generate an epithelial‐lined tube. Developmental Dynamics 238:3111–3125, 2009. © 2009 Wiley‐Liss, Inc.
In vivo imaging of the cyclic changes in cross‐sectional shape of the ventricular segment of pulsating embryonic chick hearts at stages 14 to 17: A contribution to the understanding of the ontogenesis of cardiac pumping function
Authors: Männer Jörg , Thrane Lars , Norozi Kambiz , Yelbuz T. Mesud 
Published: November 2009

AbstractThe cardiac cycle‐related deformations of tubular embryonic hearts were traditionally described as concentric narrowing and widening of a tube of circular cross‐section. Using optical coherence tomography (OCT), we have recently shown that, during the cardiac cycle, only the myocardial tube undergoes concentric narrowing and widening while the endocardial tube undergoes eccentric narrowing and widening, having an elliptic cross‐section at end‐diastole and a slit‐shaped cross‐section at end‐systole. Due to technical limitations, these analyses were confined to early stages of ventricular development (chick embryos, stages 10–13). Using a modified OCT‐system, we now document, for the first time, the cyclic changes in cross‐sectional shape of beating embryonic ventricles at stages 14 to 17. We show that during these stages (1) a large area of diminished cardiac jelly appears at the outer curvature of the ventricular region associated with formation of endocardial pouches; (2) the ventricular endocardial lumen acquires a bell‐shaped cross‐section at end‐diastole and becomes compressed like a fireplace bellows during systole; (3) the contracting portions of the embryonic ventricles display stretching along its baso‐apical axis at end‐systole. The functional significance of our data is discussed with respect to early cardiac pumping function. Developmental Dynamics 238:3273–3284, 2009. © 2009 Wiley‐Liss, Inc.
Differential expression of slitrk family members in the mouse nervous system
Authors: Beaubien François , Cloutier Jean‐François 
Published: November 2009

AbstractThe Slitrk family of transmembrane proteins is composed of six members that are highly expressed in the nervous system. To date, the function of Slitrks during development of the nervous system has yet to be defined. The high homology between the extracellular region of Slitrks and the repulsive axon guidance molecules Slits suggests that Slitrks may regulate axon outgrowth during development. To begin to evaluate their role during development, we have examined the expression of the Slitrk genes in the developing murine nervous system using in situ hybridization. Here, we show that despite some overlap in expression, the Slitrks display distinct patterns of expression in the olfactory system, the eye, forebrain structures, the cerebellum, the spinal cord, and dorsal root ganglia. These diverse patterns of expression suggest that Slitrk family members may have different functions during development of the nervous system. Developmental Dynamics 238:3285–3296, 2009. © 2009 Wiley‐Liss, Inc.
Differential activity of Wnt/β‐catenin signaling in the embryonic mouse thalamus
Authors: Bluske Krista K. , Kawakami Yasuhiko , Koyano‐Nakagawa Naoko , Nakagawa Yasushi 
Published: November 2009

AbstractIn neural development, several Wnt genes are expressed in the vertebrate diencephalon, including the thalamus. However, roles of Wnt signaling in the thalamus during neurogenesis are not well understood. We examined Wnt/β‐catenin activity in embryonic mouse thalamus and found that a Wnt target gene Axin2 and reporter activity of BAT‐gal transgenic mice show similar, differential patterns within the thalamic ventricular zone, where ventral and rostral regions had lower activity than other regions. Expression of Wnt ligands and signaling components also showed complex, differential patterns. Finally, based on partially reciprocal patterns of Wnt and Shh signals in the thalamic ventricular zone, we tested if Shh signal is sufficient or necessary for the differential Axin2 expression. Analysis of mice with enhanced or reduced Shh signal showed that Axin2 expression is similar to controls. These results suggest that differential Wnt signaling may play a role in patterning the thalamus independent of Shh signaling. Developmental Dynamics 238:3297–3309, 2009. © 2009 Wiley‐Liss, Inc.
Enucleation of feeder cells and egg cells with psoralens
Authors: McGarry Thomas J. , Bonaguidi Michael , Lyass Ljuba , Kessler John A. , Bodily Jason M. , Doglio Lynn 
Published: November 2009

AbstractGFP‐expressing Xenopus tadpole made by transplanting a nucleus from a transgenic CMV‐GFP blastula into an enucleated GFP(−) egg. The egg was enucleated using a new method, treatment with psoralens and ultraviolet light. See McGarry et al., Developmental Dynamics 238:2614–2621, 2009. © 2009 Wiley‐Liss, Inc.
Differentiation of Detection of Ascorbic Acid and Dehydroascorbic Acid Using Hydrodynamic Amperometry and Anodic Stripping Voltammetry on Modified Aluminum Electrodes
Authors: Pournaghi‐Azar M. H. , Dastangoo H. , Fadakar R. 
Published: November 2009

AbstractAn electroanalytical strategy for the simultaneous determination of ascorbic acid (AA) and dehydroascorbic acid (DHA), is described. A palladized Al electrode is used for hydrodynamic amperometry of AA. While the decrease of anodic stripping voltammetry current of the K2UO2[Fe(CN)6]‐Pd/Al electrode prepared in the presence of DHA was the principal of the DHA determination. The calibration graph for both methods was linear over the concentration range 1–50 μM. The detection limit was found to be 0.5 μM. Some fresh fruit juices and vegetables of trace level of AA and DHA were analyzed as the typical example of application.
Fabrication of a Sensitive Cholesterol Biosensor Based on Cobalt‐oxide Nanostructures Electrodeposited onto Glassy Carbon Electrode
Authors: Salimi Abdollah , Hallaj Rahman , Soltanian Saied 
Published: November 2009

AbstractElectrodeposited cobalt oxide (CoOx) nanomaterials are not only used for immobilization of cholesterol oxidase (ChOx) but also as electron transfer mediator for oxidation of H2O2 generated in the enzymatic reaction. Voltammetry and flow injection analysis (FIA) were used for determination of cholesterol. FIA determination of cholesterol with biosensors yielded a calibration curve with the following characteristics: linear range up to 50 μM, sensitivity of 43.5 nA μM−1 cm−2 and detection limit of 4.2 μM. The apparent Michaelis‐Menten constant and the response time of the biosensor are 0.49 mM and 15 s, respectively. This biosensor also exhibits good stability, reproducibility and long life time.