bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Pd‐Catalyzed Tandem C—H Azidation and N—N Bond Formation of Arylpyridines: A Direct Approach to Pyrido[1,2‐b]indazoles.
Authors: Zheng Qing‐Zhong , Feng Peng , Liang Yu‐Feng , Jiao Ning 
Published: December 2013

AbstractA novel Pd‐catalyzed nitrogenation of ortho‐aryl substituted pyridines is developed using NaN3 as the N‐atom source.
ChemInform Abstract: Direct Transformation of Amides into α‐Amino Phosphonates via a Reductive Phosphination Process.
Authors: Gao Yuzhen , Huang Zhongbin , Zhuang Rongqiang , Xu Jian , Zhang Pengbo , Tang Guo , Zhao Yufen 
Published: December 2013

AbstractA first general one pot method for the reductive phosphination of amides using Schwartz′s reagent is presented.
ChemInform Abstract: Chiral α‐Amino Phosphonates via Rhodium‐Catalyzed Asymmetric 1,4‐Addition Reactions.
Authors: Lefevre Nicolas , Brayer Jean‐Louis , Folleas Benoit , Darses Sylvain 
Published: December 2013

AbstractA straightforward method for the synthesis of α‐aminophosphonates from dehydroaminophosphonates (I) and (IV) is developed using a Rh‐catalyzed 1,4‐addition of arenetrifluoroborates in the presence of (S)‐difluorophos as chiral ligand.
ChemInform Abstract: Arvestolides A—C (I), (II), and (III), New Rare Sesquiterpenes from the Aerial Parts of Artemisia vestita.
Authors: Tian Shuaihua , Chai Xingyn , Zan Ke , Zeng Kewu , Guo Xiaoyu , Jiang Yong , Tu Pengfei 
Published: December 2013

AbstractThe isolated arvestolide (II) shows a moderate inhibition effect on lipopolysaccharide‐induced nitric oxide production in BV‐2 microglial cells.
ChemInform Abstract: Reagent Controlled β‐Specific Dehydrative Glycosylation Reactions with 2‐Deoxy‐sugars.
Authors: Issa John Paul , Lloyd Dina , Steliotes Emily , Bennett Clay S. 
Published: December 2013

AbstractIt is demonstrated that 2‐deoxysugar hemiacetals react with 1‐tosyl‐4‐nitroimidazol to generate intermediates which react with S‐ or O‐nucleophiles to give β‐glycosides exclusively.
ChemInform Abstract: Spiro Fused Diterpene—Indole Alkaloids from a Creek‐Bottom‐Derived Aspergillus terreus.
Authors: Cai Shengxin , Du Lin , Gerea Alexandra L. , King Jarrod B. , You Jianlan , Cichewicz Robert H. 
Published: December 2013

AbstractTeraspiridoles A‐D (Ia,b, IIa,b) are isolated from the title fungus.
ChemInform Abstract: Reactions of Acid Chlorides/Ketenes with 2‐Substituted 4,5‐Dihydro‐4,4‐dimethyl‐1,3‐thiazoles: Formation of Penam Derivatives.
Authors: Shi Junxing , Linden Anthony , Heimgartner Heinz 
Published: December 2013

AbstractAddition reactions of acid chlorides (II) and (V) to dihydro‐4,4‐dimethyl‐5‐methylthio‐thiazoles (I), (IV), and (IX) are studied.
ChemInform Abstract: A Novel Production Method for Nitridosilicate‐Type Phosphors.
Authors: Cakmak Hasan , Jansen Martin 
Published: December 2013

AbstractM2‐xEuxSi5N8 (M: Ca, Sr, Eu) orange‐to‐red phosphors for white‐LED applications are prepared by reacting SiCl4 with liquid NH3 in which Ca, Sr, or Eu metals are dissolved, or Eu[N(SiMe3)2]3 is suspended.
ChemInform Abstract: Synthesis of Wurtzite Cu2ZnGeSe4 Nanocrystals and Their Thermoelectric Properties.
Authors: Xue Ding‐Jiang , Jiao Fei , Yan Hui‐Juan , Xu Wei , Zhu Daoben , Guo Yu‐Guo , Wan Li‐Jun 
Published: December 2013

AbstractThe title nanocrystals with an unusual wurtzite structure are synthesized by injection of an oleylamine solution of diphenyl diselenide into a mixture of Cu(OAc)2, Zn(OAc)2, GeI4, and oleylamine at 230 °C.
ChemInform Abstract: Coordination Polymers and Metal‐Organic Frameworks Derived from 4,4′‐Dicarboxy‐2,2′‐bipyridine and 4,4′,6,6′‐Tetracarboxy‐2,2′‐bipyridine Ligands: A Personal Perspective
Authors: Kruger Paul E. 
Published: December 2013

AbstractReview: 68 refs.
Physical (in)activity‐dependent structural plasticity in bulbospinal catecholaminergic neurons of rat rostral ventrolateral medulla
Authors: Mischel Nicholas A. , Llewellyn‐Smith Ida J. , Mueller Patrick J. 
Published: December 2013

ABSTRACTIncreased activity of the sympathetic nervous system is thought to play a role in the development and progression of cardiovascular disease. Recent work has shown that physical inactivity versus activity alters neuronal structure in brain regions associated with cardiovascular regulation. Our physiological studies suggest that neurons in the rostral ventrolateral medulla (RVLM) are more responsive to excitation in sedentary versus physically active animals. We hypothesized that enhanced functional responses in the RVLM may be due, in part, to changes in the structure of RVLM neurons that control sympathetic activity. We used retrograde tracing and immunohistochemistry for tyrosine hydroxylase (TH) to identify bulbospinal catecholaminergic (C1) neurons in sedentary and active rats after chronic voluntary wheel‐running exercise. We then digitally reconstructed their cell bodies and dendrites at different rostrocaudal levels. The dendritic arbors of spinally projecting TH neurons from sedentary rats were more branched than those of physically active rats (P < 0.05). In sedentary rats, dendritic branching was greater in more rostral versus more caudal bulbospinal C1 neurons, whereas, in physically active rats, dendritic branching was consistent throughout the RVLM. In contrast, cell body size and the number of primary dendrites did not differ between active and inactive animals. We suggest that these structural changes provide an anatomical underpinning for the functional differences observed in our in vivo studies. These inactivity‐related structural and functional changes may enhance the overall sensitivity of RVLM neurons to excitatory stimuli and contribute to an increased risk of cardiovascular disease in sedentary individuals. J. Comp. Neurol. 522:499–513, 2014. © 2013 Wiley Periodicals, Inc.
Spino‐olivary projections in the rat are anatomically separate from postsynaptic dorsal column projections
Authors: Flavell Charlotte R. , Cerminara Nadia L. , Apps Richard , Lumb Bridget M. 
Published: December 2013

ABSTRACTThe gracile nucleus (GN) and lateral part of rostral dorsal accessory olive (rDAO) are important relays for indirect, postsynaptic dorsal column, and direct ascending pathways, respectively, that terminate as climbing fibers in the “hindlimb‐receiving” parts of the C1 and C3 zones in the cerebellar cortex. While the spinal cells of origin of that project to GN and rDAO are from largely separate territories in the spinal cord, previous studies have indicated that there could be an area of overlap between these two populations in the medial dorsal horn. Given the access of these two ascending tracts to sensory (thalamic) versus sensorimotor (precerebellar) pathways, the present study therefore addresses the important question of whether or not individual neurons have the potential to contribute axons to both ascending pathways. A double‐fluorescent tracer strategy was used in rats (red Retrobeads and Fluoro‐Ruby or green Retrobeads and Fluoro‐Emerald) to map the spatial distribution of cells of origin of the two projections in the lumbar spinal cord. The two pathways were found to receive input from almost entirely separate territories within the lumbar cord (levels L3–L5). GN predominantly receives input from lamina IV, while rDAO receives its input from three cell populations: medial laminae V–VI, lateral lamina V, and medial laminae VII–VIII. Cells that had axons that branched to supply both GN and rDAO represented only about 1% of either single‐labeled cell population. Overall, the findings therefore suggest functional independence of the two ascending pathways. J. Comp. Neurol. 522:2179–2190, 2014. © 2013 Wiley Periodicals, Inc.
Bidirectional global spontaneous network activity precedes the canonical unidirectional circuit organization in the developing hippocampus
Authors: Shi Yulin , Ikrar Taruna , Olivas Nicholas D. , Xu Xiangmin 
Published: December 2013

ABSTRACTSpontaneous network activity is believed to sculpt developing neural circuits. Spontaneous giant depolarizing potentials (GDPs) were first identified with single‐cell recordings from rat CA3 pyramidal neurons, but here we identify and characterize a large‐scale spontaneous network activity we term global network activation (GNA) in the developing mouse hippocampal slices, which is measured macroscopically by fast voltage‐sensitive dye imaging. The initiation and propagation of GNA in the mouse is largely GABA‐independent and dominated by glutamatergic transmission via AMPA receptors. Despite the fact that signal propagation in the adult hippocampus is strongly unidirectional through the canonical trisynaptic circuit (dentate gyrus [DG] to CA3 to CA1), spontaneous GNA in the developing hippocampus originates in distal CA3 and propagates both forward to CA1 and backward to DG. Photostimulation‐evoked GNA also shows prominent backward propagation in the developing hippocampus from CA3 to DG. Mouse GNA is strongly correlated to electrophysiological recordings of highly localized single‐cell and local field potential events. Photostimulation mapping of neural circuitry demonstrates that the enhancement of local circuit connections to excitatory pyramidal neurons occurs over the same time course as GNA and reveals the underlying pathways accounting for GNA backward propagation from CA3 to DG. The disappearance of GNA coincides with a transition to the adult‐like unidirectional circuit organization at about 2 weeks of age. Taken together, our findings strongly suggest a critical link between GNA activity and maturation of functional circuit connections in the developing hippocampus. J. Comp. Neurol. 522:2191–2208, 2014. © 2013 Wiley Periodicals, Inc.
Effects of reproductive condition, roost microclimate, and weather patterns on summer torpor use by a vespertilionid bat
Authors: Johnson Joseph S. , Lacki Michael J. 
Published: December 2013

AbstractA growing number of mammal species are recognized as heterothermic, capable of maintaining a high‐core body temperature or entering a state of metabolic suppression known as torpor. Small mammals can achieve large energetic savings when torpid, but they are also subject to ecological costs. Studying torpor use in an ecological and physiological context can help elucidate relative costs and benefits of torpor to different groups within a population. We measured skin temperatures of 46 adult Rafinesque's big‐eared bats (Corynorhinus rafinesquii) to evaluate thermoregulatory strategies of a heterothermic small mammal during the reproductive season. We compared daily average and minimum skin temperatures as well as the frequency, duration, and depth of torpor bouts of sex and reproductive classes of bats inhabiting day‐roosts with different thermal characteristics. We evaluated roosts with microclimates colder (caves) and warmer (buildings) than ambient air temperatures, as well as roosts with intermediate conditions (trees and rock crevices). Using Akaike's information criterion (AIC), we found that different statistical models best predicted various characteristics of torpor bouts. While the type of day‐roost best predicted the average number of torpor bouts that bats used each day, current weather variables best predicted daily average and minimum skin temperatures of bats, and reproductive condition best predicted average torpor bout depth and the average amount of time spent torpid each day by bats. Finding that different models best explain varying aspects of heterothermy illustrates the importance of torpor to both reproductive and nonreproductive small mammals and emphasizes the multifaceted nature of heterothermy and the need to collect data on numerous heterothermic response variables within an ecophysiological context.
Coprecipitation of Oxalates: An Easy and Reproducible Wet‐Chemistry Synthesis Route for Transition‐Metal Ferrites
Authors: Diodati Stefano , Nodari Luca , Natile Marta Maria , Caneschi Andrea , de Julián Fernández César , Hoffmann Claudia , Kaskel Stefan , Lieb Alexandra , Di Noto Vito , Mascotto Simone , Saini Roberta , Gross Silvia 
Published: December 2013

AbstractIn this work, an easy, quick and reproducible wet‐synthesis coprecipitation route starting from oxalate precursors was optimised to synthesise cobalt, nickel, zinc and magnesium spinel ferrites CoFe2O4, NiFe2O4, ZnFe2O4 and MgFe2O4, as well as the manganese perovskite ferrite MnFeO3. Crystalline purity and crystallite sizes ranging from 30 to 190 nm were investigated by means of powder X‐ray diffraction, and uniform morphology of the particles was shown through transmission electron microscopy. The chosen synthetic route afforded an excellent stoichiometric control over the products, as confirmed by combined X‐ray photoelectron spectroscopy and inductively coupled plasma atomic emission spectroscopy analyses. The site geometry, degree of inversion in the spinels and chemical environments in the ferrites were explored by Mössbauer spectroscopy. The thermal evolution of the compounds during calcination and the decomposition pattern of the oxalates were studied through differential scanning calorimetry coupled with thermogravimetric analysis as well as in situ temperature‐programmed X‐ray diffraction. Magnetic properties of these oxides, as well as the transition of the perovskite from paramagnetic to ferrimagnetic behaviour at low temperatures, were investigated by superconducting quantum interferometer magnetometry.
The Effect of Pressure on the Cooperative Spin Transition in the 2D Coordination Polymer {Fe(phpy)2[Ni(CN)4]}
Authors: Gaspar Ana B. , Levchenko Georgiy , Terekhov Sergey , Bukin Gennadiy , Valverde‐Muñoz Javier , Muñoz‐Lara Francisco J. , Seredyuk Maksym , Real José A. 
Published: December 2013

AbstractThe effect of pressure on the spin‐transition properties of the 2D coordination polymer {Fe(phpy)2[Ni(CN)4]} is reported. The study has been carried out by means of variable‐temperature (10–310 K) magnetic susceptibility measurements at applied pressures of 105 Pa to 1.0 GPa and spectroscopic studies in the visible region at room temperature (105 Pa–3.0 GPa). As the pressure is increased, the characteristic temperature of the spin transition is displaced to higher temperatures and the thermal hysteresis loop disappears. A cooperative first‐order spin transition characterized by a piezo‐hysteresis loop about 0.3 GPa wide was observed at 293 K.
A Metal‐Free Route to CF3‐Containing Oxindoles by PhI(OAc)2‐Mediated Trifluoromethylation of N‐Arylacrylamides with TMSCF3
Authors: Fu Weijun , Xu Fengjuan , Fu Yuqin , Xu Chen , Li Shihui , Zou Dapeng 
Published: December 2013

AbstractA mild and efficient PhI(OAc)2‐mediated trifluoromethylation reaction of N‐arylacrylamides with TMSCF3 under metal‐free conditions was developed. This method provides convenient access to a variety of useful CF3‐containing oxindoles in moderate to good yields.
Stereoselective Construction of 2,8‐Dioxabicyclo[3.3.1]nonane/nonene Systems from 3‐C‐Branched Glycals
Authors: Reddy Gadi Madhusudhan , Sridhar Perali Ramu 
Published: December 2013

AbstractA stereoselective approach for the formation of 2,8‐dioxabicyclo[3.3.1]nonane/nonene frameworks through the formation of 3‐C‐branched glycals encompassing the Claisen rearrangement of the carbohydrate‐derived allyl‐vinyl ethers and TMSOTf‐catalyzed acetalization reactions as key steps is revealed. A novel acetalization of 3‐C‐branched glycals with a tentative mechanism is proposed. The expedient protocol is evaluated by synthesizing a number of 2,8‐dioxabicyclo[3.3.1]nonane/nonene architectures.
P-gp efflux pump inhibition potential of common environmental contaminants determined in vitro
Authors: Georgantzopoulou Anastasia , Skoczyńska Ewa , Van den Berg Johannes H.J. , Brand Walter , Legay Sylvain , Klein Sebastian G. , Rietjens Ivonne M.C.M. , Murk Albertinka J. 
Published: December 2013

Abstract

Across different species, cellular efflux pumps such as P-glycoprotein (P-gp; also termed multidrug resistance protein 1 [MDR1]) serve as a first line of defense by transporting toxic xenobiotics out of the cell. This mechanism is also active in aquatic organisms such as mussels, fish, and their larvae. Modulation of this resistance mechanism by chemical agents occurring in the environment could result in either higher or lower internal concentrations of toxic or endogenous compounds in cells. The aim of the present study was to explore and quantify the inhibition of the P-gp efflux pumps by several ubiquitous aquatic contaminants. The calcein-acetoxymethyl ester (calcein-AM) assay commonly used in pharmacological research was established with P-gp–overexpressing Madin–Darby canine kidney cells (MDCKII–MDR1) in a 96-well plate, avoiding extra washing, centrifugation, and lysis steps. This calcein-AM–based P-gp cellular efflux pump inhibition assay (CEPIA) was used to study the inhibition by commonly occurring environmental contaminants. Among others, the compounds pentachlorophenol, perfluorooctane sulfonate, and perfluorooctanoate strongly inhibited the P-gp–mediated efflux of calcein-AM while the chloninated alkanes did not seem to interact with the transporter. The fact that common pollutants can be potent modulators of the efflux transporters is a motive to further study whether this increases the toxicity of other contaminants present in the same matrices. Environ Toxicol Chem 2014;33:804–813. © 2013 SETAC
Investigation of gelatin/multi‐walled carbon nanotube nanocomposite films as packaging materials
Authors: Kavoosi Gholamreza , Dadfar Seyed Mohammad Mahdi , Dadfar Seyed Mohammad Ali , Ahmadi Farhad , Niakosari Mehrdad 
Published: December 2013

AbstractGelatin composite films were prepared from gelatin solutions (10% w/v) containing multi‐walled carbon nanotubes (MWCNT, 0.5, 1, 1.5, and 2% w/w gelatin) as nanofiller. The water solubility, water swelling, water uptake, water vapor permeability (WVP), mechanical, and antibacterial properties of the films were examined. Water solubility, water swelling, water uptake, andWVPfor gelatin films were 45 ± 1%, 821 ± 42%, 45 ± 1.1%, and 0.4 ± 0.022 g mm/m2 kPa h, respectively. Incorporation ofMWCNTcaused a significant decrease in water solubility, water swelling, water uptake, andWVP. Gelatin/MWCNTfilms containing 1–1.5%MWCNTshowed the lowest water vapor transmission. Tensile strength, elongation at break, and Young's modulus for gelatin films were 13.4 ± 1.2 MPa, 95 ± 5%, and 45.4 ± 7 MPa, respectively. Incorporation ofMWCNTcaused a significant increase in tensile strength and decrease in the elongation at break. The largest mechanical strength was found at 1.5%MWCNT. All gelatin/MWCNTfilms showed significant antibacterial activities against both gram‐positive and gram‐negative bacteria. Our results suggest that the gelatin/MWCNTcomposites films could be used as a very attractive alternative to traditional materials for different biomedical and food applications.
Three‐Dimensional Reconstruction and Microstructure Modeling of Porosity‐Graded Cathode Using Focused Ion Beam and Homogenization Techniques
Authors: Amani Hamedani H. , Baniassadi M. , Sheidaei A. , Pourboghrat F. , Rémond Y. , Khaleel M. , Garmestani H. 
Published: December 2013

AbstractIn this study, microstructure of a porosity‐graded lanthanum strontium manganite (LSM) cathode of solid oxide fuel cells (SOFCs) has been characterized using focused ion beam (FIB) and scanning electron microscopy (SEM) combined with image processing. Two‐point correlation functions of the two‐dimensional (2D) images taken along the direction of porosity gradient are used to reconstruct a three‐dimensional (3D) microstructure. The effective elastic modulus of the two‐phase porosity‐graded cathode is predicted using strong contrast (SC) and composite inclusion (CI) homogenization techniques. The effectiveness of the two methods in predicting the effective elastic properties of the porosity‐graded LSM cathode is investigated in comparison with the results obtained from the finite element model (FEM).
Investigation of Historical Hard Rubber Ornaments of Charles Goodyear
Authors: Raue M. , Wambach M. , Glöggler S. , Grefen D. , Kaufmann R. , Abetz C. , Georgopanos P. , Handge U. A. , Mang T. , Blümich B. , Abetz V. 
Published: December 2013

Charles Goodyear discovered the vulcanization process of natural rubber in the middle of the 19th century. In this paper, original ornaments produced by Charles Goodyear are investigated. Additionally, for comparison, a sample is produced according to Goodyear's patent (US 3633) as reference. Contrary to expectation, it is found that Charles Goodyear did not prepare the ornaments using the formulation of his patent, thus he excluded the white lead. Due to this, another reference sample is produced like the other but without white lead. It is proven that by artificial aging, natural rubber samples can get properties similar to the 150 years old rubber sample.
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Brand Personification: Introduction and Overview
Authors: Cohen Ronald Jay 
Published: December 2013

ABSTRACTThis introduction to the Special Issue on Brand Personification was designed to provide background and perspective on the topic. Definitions of brand personification and related terminology were presented for discussion, as were two sample taxonomies of brand personification strategies. The first taxonomy entailed categorization on the basis of the personified character's relationship to the brand; five overlapping categories (including, for example, “the brand personification is a character who personifies the brand” and “the brand personification is a character who is a spokesperson for the brand”) were distinguished and illustrated. The second taxonomy was based on the anthropomorphic qualities of personifications with reference to a reality continuum (ranging from animated cartoons to real people). The research articles presented in this Special Issue were introduced, and several questions for future research were raised. Issues related to the why and the how of brand personification were discussed (including, for example, an examination of the pros and cons of brand personification strategies). Interspersed throughout were some case histories of selected brand personifications. The applicability of dimensional qualitative research (DQR) as a tool in the academic and applied study of brand personification was illustrated with reference to each of the eight dimensions that comprise the DQR “BASIC IDS” (an acronym for behavior, affect, sensation, imagery, cognition, interpersonal relations, drugs, and sociocultural factors).
Nothing Can Tear Us Apart: The Effect of Brand Identity Fusion in Consumer–Brand Relationships
Authors: Lin Jhih‐Syuan , Sung Yongjun 
Published: December 2013

ABSTRACTWhile existing literature describes strong brand relationships along several dimensions, this research sheds light on the identity perspective of consumer–brand relationships through the lens of brand identity fusion. Specifically, this research examines the effect of brand identity fusion on consumers’ responses to different brand transgressions. By comparing brand identity fusion with brand identification, this research also provides evidence that brand identity fusion is more predictive and enduring in explaining consumers’ relationship‐serving biases and prorelationship behaviors in the face of brand transgressions. The applicability of brand identity fusion for understanding connections between consumers and brand relationship partners in consumer–brand relationships is presented, followed by discussions of theoretical and managerial implications and directions for future research.