bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Convenient Preparation and Manipulation of Me3SnH from Me3SnCl. Formation and Use of Mixed Trimethylstannyl Cuprates via Transmetalation Reactions.
Authors: LIPSHUTZ B. H. , REUTER D. C. 
Published: May 2016

AbstractTrimethylstannyl chloride (I) reacts with lithium aluminum hydride to generate trimethylstannane (II) which is isolated in the form of the cuprate complex (IV).
ChemInform Abstract: Neutral, Anionic, and Cationic Bis(cyclohexadienyl) and Bis(pentadienyl)uranium(III) Complexes.
Authors: BAUDRY D. , BULOT E. , EPHRITIKHINE M. 
Published: May 2016

AbstractReaction of the arene complex (I) with the potassium salts (II) and (V) of dienyl anions produces the compounds (IV) and (VI).
ChemInform Abstract: Regiospecific Activation of C‐H Bonds in Fe+ Complexes of ω‐Silyl‐Substituted Alkanenitriles Caused by Metal‐Ion‐Mediated Cooperative Effects of Functional Groups.
Authors: HAESSELBARTH A. + , PRUESSE T. + , SCHWARZ H. 
Published: May 2016

AbstractIn contrast to the monofunctional complex (I), which gives rise in the gas phase to the formation of H2, CH4 and C4H8 (9:76:15) due to an earlier study, the compound (II) in the same reaction produces only H2.
ChemInform Abstract: Preparation and Axial Ligation Behavior of Cyano(7,16‐diethyl‐(E)‐ or ‐(Z)‐dipyrido(b,i)(1,4,8,11)tetraazacyclotetradecinato)cobalt(III).
Authors: SAKATA K. , ANNOURA T. , HASHIMOTO M. 
Published: May 2016

AbstractThe pentacoordinated Co(III) title complexes (III) are characterized by mass, electronic, vibrational, and NMR spectroscopy.
ChemInform Abstract: Oxygen Activation with Transition‐Metal Complexes: Nickel‐Catalyzed Oxidation of a Pentacoordinated Substrate.
Authors: BERKESSEL A. , BATS J. W. , SCHWARZ C. 
Published: May 2016

AbstractOxidative degradation of the pentadentate ligand in the racemic Ni(II) complex (IV) (space group P21/n, Z=4) in solution results in the formation of the Schiff‐base complex (V), diphenyl disulfide (VI), and formaldehyde (VII).
ChemInform Abstract: Hydrocarbon‐Bridged Complexes. Part 13. Nucleophilic Attack of Carbonylmetalates on Cationic Alkyne Complexes (CpL2M(η2‐RCCR))+ (M: Fe, Ru): .mu±eta.1:η1‐Alkyne‐Bridged Complexes.
Authors: BREIMAIR J. , STEIMANN M. , WAGNER B. , BECK W. 
Published: May 2016

AbstractThe title complexes (III) and (IV) are obtained as demonstrated for the Ru complexes (III).
ChemInform Abstract: Electrochemical and Photophysical Properties of Mono‐ and Bimetallic Ruthenium(II) Complexes.
Authors: WALLACE A. W. , MURPHY W. R. JUN. , PETERSEN J. D. 
Published: May 2016

AbstractTen mono‐ and bimetallic complexes of the type (I) and (II) are studied.
ChemInform Abstract: η6‐Arene‐Stabilized Ruthenacyclopentanes: Synthesis, X‐Ray Structures, and Reaction with the Trityl Cation.
Authors: BARABOTTI P. , DIVERSI P. , INGROSSO G. , LUCHERINI A. , MARCHETTI F. , SAGRAMORA L. , ADOVASIO V. , NARDELLI M. 
Published: May 2016

Abstract(IIIa) and (IIIb) both crystallize in the space group P21/n, (IIIc) in P21/c; Z=4 for all three compounds.
ChemInform Abstract: Synthesis and Characterization of Gold Adducts of (M(tppme)(P3)) (M: Co, Rh, or Ir; tppme: 1,1,1‐tris(diphenylphosphinomethyl)ethane). X‐Ray Crystal Structures of (Au(M(tppme)(P3))2)PF6 (M: Co, Rh, or Ir).
Authors: DI VAIRA M. , STOPPIONI P. , PERUZZINI M. 
Published: May 2016

AbstractThe title complexes (III) are also obtained with further gold complexes with uni‐ and bidentate phosphines.
ChemInform Abstract: Hydrolysis of Organonitriles and Carboxamides in Platinum(IV) Complexes. X‐Ray Structure Determination of the Crystalline Clathrate ((C2H5)4N)(Pt(NH3)Cl5)·1/6 NH4Cl.
Authors: KUKUSHKIN V. YU. , ZENKEVICH I. G. , BELSKY V. K. , KONOVALOV V. E. , MOISEEV A. I. , SIDOROV E. O. 
Published: May 2016

AbstractThe title complexes such as (I), its benzonitrile analogue, and (III) easily undergo hydrolysis at 20 °C. Studies show that in addition to the corresponding carbonic acids and their conversion products ammine‐Pt(IV) complexes of the type (II) and (IV) are obtained.
ChemInform Abstract: Polyhedral Metallaphosphaborane Chemistry: The Preparation, Molecular Structure, and NMR Study of (2‐Ph‐1,1‐(PMe2Ph)2‐closo‐1,2‐PtPB10H10), and Some Related Chemistry.
Authors: BUNKHALL S. R. , FONTAINE X. L. R. , GREENWOOD N. N. , KENNEDY J. D. , THORNTON‐PETT M. 
Published: May 2016

AbstractAs part of a general survey of platinaborane chemistry, the reaction of (I) with the anion of the nido‐compound (II) is investigated.
ChemInform Abstract: (+)‐α‐Bisabolol and (+)‐Anymol. A Repetition of the Synthesis from the Limonene 8,9‐Epoxides.
Authors: CARMAN R. M. , DUFFIELD A. R. 
Published: May 2016

AbstractThe absolute configurations of (+)‐anymol and (+)‐bisabolol are established as (I) and (II), respectively.
ChemInform Abstract: Anisotropic Reactive Ion Etching of Aluminum Using Cl2, BCl3, and CH4 Gases.
Authors: LUTZE J. W. , PERERA A. H. , KRUSIUS J. P. 
Published: May 2016

AbstractA technique for anisotropically etching fine line patterns in aluminum films using the gas combination Cl2:BCl3:CH4 is developed in order to avoid the use of the strong carcinogens CCl4 and CHCl3.
Environment, competitive strategy, and organizational characteristics: A path analytic model of construction organizations’ performance in South Africa
Authors: Oyewobi Luqman Oyekunle , Windapo Abimbola Olukemi , Rotimi James O. B. 
Published: May 2016

AbstractWhile mainstream strategic management researchers have paid attention to the causes of performance differential among organizations, there is a dearth of empirical research within the construction industry on the subject. We examine the relationship between environment, organizational characteristics, competitive strategies, and performance of construction organizations in the South African construction industry. In order to develop a model for improving organizations’ performance, partial least squares was employed using quantitative data collected from a sample of 72 large construction firms listed on the Construction Industry Development Board contractors’ register in South Africa. The results reveal that organizational characteristics have a direct influence on organizational performance, while the relationship between the business environment and organizational performance is mediated by competitive strategies. Copyright © 2016 ASAC. Published by John Wiley & Sons, Ltd.
Thermally Driven Dynamics of a Rotaxane Wheel about an Imidazolium Axle inside a Metal–Organic Framework
Authors: Farahani Nasim , Zhu Kelong , O'Keefe Christopher A. , Schurko Robert W. , Loeb Stephen J. 
Published: May 2016

AbstractA new mechanically interlocked molecular linker was prepared by using ring‐closing metathesis (Grubbs I) to clip a [24]crown‐6 ether wheel around an axle containing both Y‐shaped diphenylimidazole and isophthalic acid groups. A metal–organic framework (MOF) material was prepared using this linker and ZnII ions. Single‐crystal X‐ray diffraction experiments showed that the MOF contains an imidazolium‐based rotaxane linked by dimeric [Zn2(NO3)(DEF)] secondary building units (SBUs). Variable‐temperature (VT), 2H solid‐state NMR spectroscopy was used to characterize the motion of the “soft” wheel component around the rigid “hard” lattice of the framework. At higher temperatures (above 150 °C), it was demonstrated that the 24‐membered, macrocyclic ring of the MOF undergoes rapid, thermally driven rotation about the axle inside the voids of the lattice.
Impact of T cell activation, HIV replication and hepatitis C virus infection on neutrophil CD64 expression
Authors: Morquin D. , Tuaillon E. , Makinson A. , Bendriss S. , Le Moing V. , Reynes J. 
Published: May 2016

BackgroundOverexpression of the Fc receptor CD64 on neutrophils is associated with innate immune response and bacterial infections. During HIV infection a large set of immune disorders including T‐lymphocyte over‐activation, microbial translocation, impairment of neutrophil functions, and immunodeficiency may interplay with neutrophil CD64 expression.MethodsAssociations of neutrophil CD64 expression with CD8+ T cell activation, CD4+ T cells number, HIV, and HCV replications were investigated in HIV infected patients using a standardized method.ResultsHigher neutrophil CD64 expression was observed in HIV infected subjects compared to healthy controls (0.91 vs. 0.75, P < 0.001). Among 115 HIV infected patients, nine (8.8%) had a CD64 expression over the clinical threshold as calculated against bead standard (i.e., 1.5). HIV viremic patients were more likely to have an index above 1.5 (OR: 6.68, P values: 0.01). A trend for correlation between CD64 expression and CD8 T cell activation was observed (P values: 0.08). Blood CD4+ T lymphocyte depletion and HCV replication did not affect neutrophil CD64 expression.ConclusionsHIV infection and HIV replication are associated with up‐regulation of neutrophil CD64. CD64 overexpression above the clinical threshold was observed in a minor proportion of HIV infected individuals treated by antiretroviral therapy and may be a marker of neutrophil activation related to non‐AIDS‐linked comorbidities. © 2016 International Clinical Cytometry Society
Harvested populations are more variable only in more variable environments
Authors: Cameron Tom C. , O'Sullivan Daniel , Reynolds Alan , Hicks Joseph P. , Piertney Stuart B. , Benton Tim G. 
Published: May 2016

AbstractThe interaction between environmental variation and population dynamics is of major importance, particularly for managed and economically important species, and especially given contemporary changes in climate variability. Recent analyses of exploited animal populations contested whether exploitation or environmental variation has the greatest influence on the stability of population dynamics, with consequences for variation in yield and extinction risk. Theoretical studies however have shown that harvesting can increase or decrease population variability depending on environmental variation, and requested controlled empirical studies to test predictions. Here, we use an invertebrate model species in experimental microcosms to explore the interaction between selective harvesting and environmental variation in food availability in affecting the variability of stage‐structured animal populations over 20 generations. In a constant food environment, harvesting adults had negligible impact on population variability or population size, but in the variable food environments, harvesting adults increased population variability and reduced its size. The impact of harvesting on population variability differed between proportional and threshold harvesting, between randomly and periodically varying environments, and at different points of the time series. Our study suggests that predicting the responses to selective harvesting is sensitive to the demographic structures and processes that emerge in environments with different patterns of environmental variation.
Genetic differentiation in red‐bellied piranha populations (Pygocentrus nattereri, Kner, 1858) from the Solimões‐Amazonas River
Authors: Santos Carlos Henrique dos A. dos , de Sá Leitão Carolina S. , Paula‐Silva Maria de N. , Almeida‐Val Vera Maria F. 
Published: May 2016

AbstractRed‐bellied piranhas (Pygocentrus nattereri) are widely caught with different intensities throughout the region of Solimões‐Amazonas River by local fishermen. Thus, the management of this resource is performed in the absence of any information on its genetic stock. P. nattereri is a voracious predator and widely distributed in the Neotropical region, and it is found in other regions of American continent. However, information about genetic variability and structure of wild populations of red‐bellied piranha is unavailable. Here, we describe the levels of genetic diversity and genetic structure of red‐bellied piranha populations collected at different locations of Solimões‐Amazonas River system. We collected 234 red‐bellied piranhas and analyzed throughout eight microsatellite markers. We identified high genetic diversity within populations, although the populations of lakes ANA, ARA, and MAR have shown some decrease in their genetic variability, indicating overfishing at these communities. Was identified the existence of two biological populations when the analysis was taken altogether at the lakes of Solimões‐Amazonas River system, with significant genetic differentiation between them. The red‐bellied piranha populations presented limited gene flow between two groups of populations, which were explained by geographical distance between these lakes. However, high level of gene flow was observed between the lakes within of the biological populations. We have identified high divergence between the Catalão subpopulation and all other subpopulations. We suggest the creation of sustainable reserve for lakes near the city of Manaus to better manage and protect this species, whose populations suffer from both extractive and sport fishing.
Strategic Applications of Nanomaterials as Sensing Platforms and Signal Amplification Markers at Electrochemical Immunosensors
Authors: Huo Xiaohe , Liu Xiaoqiang , Liu Jin , Sukumaran Preethi , Alwarappan Subbiah , Wong Danny K. Y. 
Published: May 2016

AbstractTremendous developments in electrochemical immunosensors have facilitated cost‐effective, rapid and robust detection of many analytes. Among the significant developments, electrochemical immunosensors capable of simultaneously detecting several analytes have begun to emerge. In addition, recent progress in materials science and engineering has yielded nanostructured materials of various geometries that were readily exploited to provide a compatible medium for many biomolecules in immunoassays. Applications of these nanostructured materials to electrochemical immunosensor developments have significantly improved sensor performance in terms of their electrical, chemical and transport properties. This review provides a survey of innovative immunosensor developments involving a range of nanomaterials exploited in designing sensing platforms and efficient detection markers to achieve substantial signal amplifications and thereby outstanding detection characteristics.
Bootstrapping Development of a Cloud‐Based Spoken Dialog System in the Educational Domain From Scratch Using Crowdsourced Data
Authors: Ramanarayanan Vikram , Suendermann‐Oeft David , Lange Patrick , Ivanov Alexei V. , Evanini Keelan , Yu Zhou , Tsuprun Eugene , Qian Yao 
Published: May 2016

AbstractWe propose a crowdsourcing‐based framework to iteratively and rapidly bootstrap a dialog system from scratch for a new domain. We leverage the open‐source modularHALEFdialog system to deploy dialog applications. We illustrate the usefulness of this framework using four different prototype dialog items with applications in the educational domain and present initial results and insights from this endeavor.
A surface‐based technique for mapping homotopic interhemispheric connectivity: Development, characterization, and clinical application
Authors: Tobyne Sean M. , Boratyn Daria , Johnson Jessica A. , Greve Douglas N. , Mainero Caterina , Klawiter Eric C. 
Published: May 2016

AbstractThe functional organization of the human brain consists of a high degree of connectivity between interhemispheric homologous regions. The degree of homotopic organization is known to vary across the cortex and homotopic connectivity is high in regions that share cross‐hemisphere structural connections or are activated by common input streams (e.g., the visual system). Damage to one or both regions, as well as damage to the connections between homotopic regions, could disrupt this functional organization. Here were introduce and test a computationally efficient technique, surface‐based homotopic interhermispheric connectivity (sHIC), that leverages surface‐based registration and processing techniques in an attempt to improve the spatial specificity and accuracy of cortical interhemispheric connectivity estimated with resting state functional connectivity. This technique is shown to be reliable both within and across subjects. sHIC is also characterized in a dataset of nearly 1000 subjects. We confirm previous results showing increased interhemispheric connectivity in primary sensory regions, and reveal a novel rostro‐caudal functionally defined network level pattern of sHIC across the brain. In addition, we demonstrate a structural–functional relationship between sHIC and atrophy of the corpus callosum in multiple sclerosis (r = 0.2979, p = 0.0461). sHIC presents as a sensitive and reliable measure of cortical homotopy that may prove useful as a biomarker in neurologic disease. Hum Brain Mapp 37:2849–2868, 2016. © 2016 Wiley Periodicals, Inc.
Modular Approach to Introduce Multivariate Calculus in Thermodynamics Class
Authors: Chen Franklin M. 
Published: May 2016

AbstractFive manageable multivariate calculus modules were developed to help students effectively learn complex relations in Thermodynamics. The goal of this module approach is to enhance students’ self‐efficacy in learning, which numerous studies have shown to be the key predictor in improving students’ academic achievement and retention in science. The author has used this module in Thermodynamics for four years. According to the assessment the learning results are quite positive and encouraging.
Application of a stir bar sorptive extraction method for the determination of volatile compounds in different grape varieties
Authors: Vasile‐Simone Giuseppe , Castro Remedios , Natera Ramón , Masino Francesca , Barroso Carmelo G , Durán‐Guerrero Enrique 
Published: May 2016

AbstractBACKGROUNDStir bar sorptive extraction (SBSE) has been employed for the analysis of aroma compounds directly from Spanish and Italian grape extracts. The extraction conditions have been optimized using a statistical approach, obtaining results that improve the current state of the art.RESULTSThe proposed analytical conditions were: sample volume 40 mL, extraction time 80 min, 25% (w/v) NaCl and stirring speed 750 rpm using 20 mm × 0.5 mm stir bars. Performance characteristics of the SBSE procedure were further studied and showed correlation coefficients, detection and quantification limits, linear ranges, recoveries and precision values adequate for analysing these compounds in grapes. Twenty‐four grape varieties (aromatic and non‐aromatic) were analysed. Statistically significant differences (P < 0.05) according to geographical origin were found, being derived mainly from the terpenoid content. By principal component analysis it was possible to note that the terpenoids were more effective in the separation of the non‐aromatic samples, showing negative and positive scores for Italian and Spanish grapes, respectively.CONCLUSIONFor non‐aromatic grape varieties, the factor ‘geographic location’ was the most significant, thus corroborating the high influence of this parameter on the volatile composition of grapes and therefore on the genuineness of wines. © 2016 Society of Chemical Industry
The safety and efficacy of endoscopic Zenker's diverticulotomy: A cohort study
Authors: Barton Michelle DeChant , Detwiller Kara Y. , Palmer Andrew D. , Schindler Joshua S. 
Published: May 2016

Objectives/HypothesisTo determine whether the application of laser‐assisted techniques for the treatment of Zenker's diverticulum would reduce the failure rate of endoscopic procedures without compromising safety or durability.Study DesignCohort study with long‐term follow‐up.MethodsWe performed a single‐institution review of 106 consecutive patients in whom endoscopic laser‐assisted diverticulotomy (ELD) or endoscopic stapler‐assisted diverticulotomy (ESD) was attempted. The Eating Assessment Tool was collected pre‐ and postoperatively. Long‐term follow‐up was conducted on average 2.4 years postoperatively.ResultsThe decision to use either ELD or ESD was made intraoperatively. An endoscopic procedure was successfully completed in 103 of 106 patients (97.2%). Eighty‐three patients underwent ELD, 20 underwent ESD, and only three required use of an open approach. No serious complications occurred. Postoperatively, there was a significant reduction in dysphagia symptoms. At follow‐up, most individuals had dysphagia scores within the normal range (69%) and were eating a regular diet (73%). Fourteen patients (14%) required revision. Compared to historical data from our institution for ESD alone, the addition of ELD resulted in a reduction in the failure rate without an increase in serious complications. Recurrence rates and long‐term outcomes were equivalent.ConclusionThrough careful patient selection, appropriate workup, and judicious use of techniques, it was possible to perform endoscopic surgery in a majority of patients without serious complications. Both approaches resulted in short‐ and long‐term symptom management with high levels of satisfaction.Level of Evidence4. Laryngoscope, 126:2705–2710, 2016
Flow–Through Catalytic Rector Based on Macroporous Amphoteric Cryogels and Gold Nanoparticles
Authors: Tatykhanova Gulnur S. , Klivenko Alexey N. , Kudaibergenova Gulnar M. , Kudaibergenov Sarkyt E. 
Published: May 2016

SummaryMacroporous amphoteric cryogel based on N,N‐dimethylaminoethylmethacrylate and methacrylic acid p(DMAEM‐co‐MAA) was used for immobilization of gold nanoparticles (AuNPs). The structure of AuNPs immobilized within macroporous amphoteric cryogel is mostly represented by spherical and triangular species. Amphoteric cryogel with immobilized AuNPs was tested as flow‐through catalytic reactor in reduction of 4‐nitrophenol by NaBH4.
Detection and isolation of actuator and sensor faults for networked control systems
Authors: Ahmadi Ali‐Akbar , Salmasi Farzad R. 
Published: May 2016

SummaryDetection and isolation of actuator and sensor faults in presence of disturbance for a class of linear networked control systems is considered, while unknown network‐induced delay is taken into account. The network‐induced delay effect is modeled by time‐varying polytopic uncertainties. Using eigen‐structure assignment approach, a fault detection filter is designed to decouple the fault and plant disturbance, while minimizing the effect of the induced delays in the network, using H∞ and H− index theories and benefiting from the free parameters in the eigen‐structure assignment approach. If the full disturbance de‐coupling is not feasible, another filter is designed to achieve partial de‐coupling and maximum robustness against the disturbance and network‐induced delay, while sensitivity to the fault is optimized. The actuator fault and disturbance vectors are augmented to define a new disturbance vector for isolation of the sensor and actuator faults. Numerical simulations are performed to evaluate the feasibility and applicability of the proposed approach. Copyright © 2016 John Wiley & Sons, Ltd.