bluuebunny/crossref_metadata_2025_split huggingface dataset:
Magnetoreception in microorganisms and fungi
Authors: Pazur Alexander , Schimek Christine , Galland Paul 
Published: October 2007

AbstractThe ability to respond to magnetic fields is ubiquitous among the five kingdoms of organisms. Apart from the mechanisms that are at work in bacterial magnetotaxis, none of the innumerable magnetobiological effects are as yet completely understood in terms of their underlying physical principles. Physical theories on magnetoreception, which draw on classical electrodynamics as well as on quantum electrodynamics, have greatly advanced during the past twenty years, and provide a basis for biological experimentation. This review places major emphasis on theories, and magnetobiological effects that occur in response to weak and moderate magnetic fields, and that are not related to magnetotaxis and magnetosomes. While knowledge relating to bacterial magnetotaxis has advanced considerably during the past 27 years, the biology of other magnetic effects has remained largely on a phenomenological level, a fact that is partly due to a lack of model organisms and model responses; and in great part also to the circumstance that the biological community at large takes little notice of the field, and in particular of the available physical theories. We review the known magnetobiological effects for bacteria, protists and fungi, and try to show how the variegated empirical material could be approached in the framework of the available physical models.
Home‐range characteristics and the influence of seasonality on female reproduction in white‐handed gibbons (Hylobates lar) at Khao Yai National Park, Thailand
Authors: Savini Tommaso , Boesch Christophe , Reichard Ulrich H. 
Published: October 2007

AbstractA three‐year (2001–2003) study was carried out on the home range characteristics of seven wild white‐handed gibbon (Hylobates lar) groups focusing on the spatio‐temporal distribution of food resources at Khao Yai National Park in northeastern Thailand. These results were combined with 23 years (1980–2003) of reproductive performance data on seven females from the same focal groups. Reproductive performance was equal among females with regard to birth, weaning and maturation ratios, and independent of variation in food availability. Offspring mortality, however, was significantly positively correlated with home‐range size. In addition, there was an increase in offspring mortality just after weaning, suggesting that the increase in the daily distance traveled by juveniles contributed to this mortality. Conceptions clustered during the first half of the year when food production was at its peak, which presumably allowed females to accumulate sufficient body reserves to resume ovarian cycling. Our results place Khao Yai gibbons closer to Cercopithecidae than great apes in terms of the temporal pattern of reproductive events, though gestation, lactation, inter‐birth interval, and offspring maturation are considerably longer in gibbons, placing them closer to the other apes. Our findings underline the unique phylogenetic position of these small‐bodied apes in terms of reproductive patterns in primates. Am J Phys Anthropol, 2008. © 2007 Wiley‐Liss, Inc.
Nicotine reduces levodopa‐induced dyskinesias in lesioned monkeys
Authors: Quik Maryka , Cox Heather , Parameswaran Neeraja , O'Leary Kathryn , Langston J. William , Di Monte Donato 
Published: October 2007

AbstractObjectiveLevodopa, the gold standard for Parkinson's disease treatment, is associated with debilitating abnormal involuntary movements or dyskinesias, for which few treatments are currently available. Studies have implicated numerous neurotransmitters in the development of levodopa‐induced dyskinesias. However, the cholinergic system has received little attention despite an extensive overlap between dopaminergic terminals and cholinergic interneurons in the striatum and the well‐known ability of nicotine to stimulate striatal dopamine release. Our objective, therefore, was to determine whether nicotine treatment reduced levodopa‐induced dyskinesias.MethodsThe effect of nicotine (provided in the drinking water) was determined on dyskinesias induced by levodopa (5mg/kg twice daily by oral gavage) in 1‐methyl‐4‐phenyl‐1,2,3,6‐tetrahydropyridine (MPTP)–treated monkeys.ResultsNicotine pretreatment reduced peak and total levodopa‐induced dyskinesias in levodopa‐naive monkeys over an 8‐week period, with a decrease in total dyskinesias of about 50%. A crossover study was then done in which levodopa‐treated monkeys originally receiving vehicle were administered nicotine, whereas the levodopa‐treated animals initially receiving nicotine were placed on vehicle. Nicotine treatment to levodopa‐primed monkeys led to an approximately 35% reduction in total dyskinesias that lasted for at least 8 weeks, at which time the study was ended. In contrast, a significant increase in levodopa‐induced dyskinesias was observed in the group of animals that had previously received nicotine and were then switched to vehicle. Nicotine treatment did not appear to affect the antiparkinsonian action of levodopa.InterpretationThese data suggest that nicotine or selective nicotinic agonists may represent a useful treatment strategy to reduce levodopa‐induced dyskinesias. Ann Neurol 2007
Effects of interfacial adhesion on properties of polypropylene/Wollastonite composites
Authors: Chen Minjie , Wan Chaoying , Shou Wenjuan , Zhang Yinxi , Zhang Yong , Zhang Jianmin 
Published: October 2007

AbstractWollastonite reinforced polypropylene (PP/CaSiO3) composites were prepared by melt extrusion. A silane coupling agent and a maleic anhydride grafted PP (PP‐g‐MA) were used to increase the interfacial adhesion between the filler and the matrix. The increased adhesion observed by scanning electron microscopy (SEM) resulted in improved mechanical properties. A model was applied to describe the relationship between the interfacial adhesion and tensile properties of PP/CaSiO3 composites. There is stronger interfacial adhesion between silane‐treated CaSiO3 and polymer matrix containing PP‐g‐MA as a modifier. Results of dynamic mechanical thermal analysis (DMTA) showed that stronger interfacial adhesion led to higher storage modulus. The influence of CaSiO3 particles on the crystallization of PP was studied by using differential scanning calorimetry (DSC). The introduction of CaSiO3 particles does not affect the crystallization temperature and crystallinity of PP matrix significantly. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Firm strategy and the Canadian Voluntary Climate Challenge and Registry (VCR)
Authors: Brouhle Keith , Harrington Donna Ramirez 
Published: October 2007

AbstractThe Canadian VCR is a climate change mitigation program that relies on firms' desire to signal environmental responsibility to external stakeholders through voluntary information disclosure. We analyze indicators of strategic behavior through three measures of engagement with the VCR program (annual participation behavior, quality of action plans and repeat participation), and test for differences in these measures among firms subjected to different regulatory climates that arise over time, across provinces and across economic sectors. Our findings suggest an increased perception of a regulatory threat in later years, as evidenced by an increase in participation rates, higher quality of action plans and higher rates of repeat participation. We also find higher levels of engagement with the VCR program in provinces with large petroleum (Alberta) and manufacturing (Ontario) industries and that have established provincial level greenhouse gas reporting mechanisms, and in certain sectors such as petroleum, electric utilities and to some extent services. Copyright © 2007 John Wiley & Sons, Ltd and ERP Environment.
‘Came hell and high water’: the intersection of Hurricane Katrina, the news media, race and poverty
Authors: Voorhees Courte C. W. , Vick John , Perkins Douglas D. 
Published: October 2007

AbstractThe mass devastation and suffering left in the wake of Hurricane Katrina in the US Gulf Coast brought the intersection of media and community into sharp focus. The news media played a pivotal role in almost every aspect of the disaster and its aftermath, and was harshly criticized for its depiction of minorities and for sensationalizing a human and environmental disaster. The literature suggests that media often represents minorities in a negative light, ultimately reinforcing existing social inequalities. This paper examines the portrayal of minority groups in the media during and after the storm. Data were coded from news media broadcasts to determine the nature of minority representation. Interviews were conducted with individuals from New Orleans who survived the disaster to understand issues related to media trust, the accuracy of media reports and perception of the media's portrayal of minorities. The results indicate that minorities are disproportionately shown in a passive or ‘victim’ role and are rarely shown in positions of expertize. Further, storm survivors indicated a misrepresentation of minorities in media coverage of the disaster, as well as reporting low levels of media trust and accuracy. The broader implications of these findings in relation to media reinforcement of social inequities and media responsibility are discussed. Copyright © 2007 John Wiley & Sons, Ltd.
Three‐year clinical outcomes after coronary stenting of chronic total occlusion using sirolimus‐eluting stents: Insights from the rapamycin‐eluting stent evaluated at rotterdam cardiology hospital—(RESEARCH) registry
Authors: García‐García Héctor M. , Daemen Joost , Kukreja Neville , Tanimoto Shuzou , van Mieghem Carlos A.G. , van der Ent Martin , van Domburg Ron T. , Serruys Patrick W. 
Published: October 2007

AbstractBackground: We previously reported that the 1‐year survival‐free from target lesion revascularization was 97.4% in patients with chronic total occlusion (CTO) treated with sirolimus‐eluting stents (SES). There are currently no long‐term results of the efficacy of SES in this subset of lesions. We assessed the 3‐year clinical outcomes of 147 patients with CTO treated with either SES or bare metal stents (BMS). Methods and Results: A total of 147 (BMS = 71, SES = 76) patients were included. Four patients died in the BMS group while five patients died in the SES group, P = 0.8; two myocardial infarctions occurred in both groups, P = 0.9; and target vessel revascularization was performed in nine patients in the BMS and seven in the SES group, P = 0.5. The cumulative event‐free survival of MACE was 81.7% in BMS group and 84.2% in SES group, P = 0.7. Two patients of the SES group had a coronary aneurism at 3‐year angiographic follow‐up. Conclusions: The use of SES was no longer associated with significantly lower rates of target vessel revascularization and major adverse cardiac events in patients with CTOs after 3 years of follow‐up compared with BMSs. © 2007 Wiley‐Liss, Inc.
Theoretical Study of Catalytic Efficiency of a Diels–Alderase Catalytic Antibody: An Indirect Effect Produced During the Maturation Process
Authors: Martí Sergio , Andrés Juan , Moliner Vicent , Silla Estanislao , Tuñón Iñaki , Bertrán Juan 
Published: October 2007

AbstractThe Diels–Alder reaction is one of the most important and versatile transformations available to organic chemists for the construction of complex natural products, therapeutics agents, and synthetic materials. Given the lack of efficient enzymes capable of catalyzing this kind of reaction, it is of interest to ask whether a biological catalyst could be designed from an antibody‐combining site. In the present work, a theoretical study of the different behavior of a germline catalytic antibody (CA) and its matured form, 39 A‐11, that catalyze a Diels–Alder reaction has been carried out. A free‐energy perturbation technique based on a hybrid quantum‐mechanics/molecular‐mechanics scheme, together with internal energy minimizations, has allowed free‐energy profiles to be obtained for both CAs. The profiles show a smaller barrier for the matured form, which is in agreement with the experimental observation. Free‐energy profiles were obtained with this methodology, thereby avoiding the much more demanding two‐dimensional calculations of the energy surfaces that are normally required to study this kind of reaction. Structural analysis and energy evaluations of substrate–protein interactions have been performed from averaged structures, which allows understanding of how the single mutations carried out during the maturation process can be responsible for the observed fourfold enhancement of the catalytic rate constant. The conclusion is that the mutation effect in this studied germline CA produces a complex indirect effect through coupled movements of the backbone of the protein and the substrate.
Possible Existence of Alkali Metal Orthocarbonates at High Pressure.
Authors: Cancarevic Jeljko P. , Schoen J. Christian , Jansen Martin 
Published: October 2007

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, please click on HTML or PDF.
On the Mechanism of Triclinic Distortion in Chevrel Phase as Probed by in situ Neutron Diffraction.
Authors: Levi E. , Mitelman A. , Aurbach D. , Isnard O. 
Published: October 2007

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, please click on HTML or PDF.
Synthesis, Structure and Chemical Bonding of Ln4RuMg (Ln: La—Nd, Sm, Gd—Ho).
Authors: Tuncel Selcan , Chevalier Bernard , Matar Samir F. , Poettgen Rainer 
Published: October 2007

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, please click on HTML or PDF.
Magnetic Characteristics of Tetrabutylammonium Tetrahalogenoferrates(III): X‐Ray Crystal Structure of Tetrabutylammonium Tetrabromoferrate(III).
Authors: Wyrzykowski Dariusz , Kruszynski Rafal , Klak Julia , Mrozinski Jerzy , Warnke Zygmunt 
Published: October 2007

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, please click on HTML or PDF.
Partially Hydroxylated Polycrystalline Ionic Oxides: A New Route Toward Electron‐Rich Surfaces.
Authors: Napoli Francesco , Chiesa Mario , Giamello Elio , Finazzi Emanuele , Di Valentin Cristina , Pacchioni Gianfranco 
Published: October 2007

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, please click on HTML or PDF.
Catalytic Efficiency of Iron(III) Oxides in Decomposition of Hydrogen Peroxide: Competition Between the Surface Area and Crystallinity of Nanoparticles.
Authors: Hermanek Martin , Zboril Radek , Medrik Ivo , Pechousek Jiri , Gregor Cenek 
Published: October 2007

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, please click on HTML or PDF.
A Simple Sol—Gel Processing for the Development of High‐Temperature Stable Photoactive Anatase Titania.
Authors: Padmanabhan Sibu C. , Pillai Suresh C. , Colreavy John , Balakrishnan Sivakumar , McCormack Declan E. , Perova Tatiana S. , Gun'ko Yurii , Hinder Steven J. , Kelly John M. 
Published: October 2007

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, please click on HTML or PDF.
Modulated Crystal Structures and Phase Transitions — The Compounds SrPt2As2 and EuPt2As2.
Authors: Imre Anette , Hellmann Andrea , Wenski Guido , Graf Juergen , Johrendt Dirk , Mewis Albrecht 
Published: October 2007

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, please click on HTML or PDF.
Mimicking Fructose and Rhamnulose Aldolases: Organocatalytic syn‐Aldol Reactions with Unprotected Dihydroxyacetone.
Authors: Ramasastry S. S. V. , Albertshofer Klaus , Utsumi Naoto , Tanaka Fujie , Barbas Carlos F. III 
Published: October 2007

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, please click on HTML or PDF.
Olefination of Ketenes for the Enantioselective Synthesis of Allenes via an Ylide Route.
Authors: Li Chuan‐Ying , Zhu Ben‐Hu , Ye Long‐Wu , Jing Qing , Sun Xiu‐Li , Tang Yong , Shen Qi 
Published: October 2007

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, please click on HTML or PDF.
A Direct Functionalization of Tertiary Alkyl Bromides with O‐, N‐, and C‐Nucleophiles.
Authors: Vachal Petr , Fletcher Joan M. , Hagmann William K. 
Published: October 2007

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, please click on HTML or PDF.
Suzuki—Miyaura Coupling Reaction by Pd(II)‐Catalyzed Aromatic C—H Bond Activation Directed by an N‐Alkyl Acetamino Group.
Authors: Shi Zhangjie , Li Bijie , Wan Xiaobing , Cheng Jiang , Fang Zhao , Cao Bin , Qin Changming , Wang Yang 
Published: October 2007

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, please click on HTML or PDF.
Metal Triflate Catalyzed Regio‐ and Stereoselective Friedel—Crafts Alkenylation of Arenes with Alkynes in an Ionic Liquid: Scope and Mechanism.
Authors: Yoon Mi Young , Kim Jin Hong , Choi Doo Seoung , Shin Ueon Sang , Lee Jin Yong , Song Choong Eui 
Published: October 2007

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, please click on HTML or PDF.
Solid‐Phase Deoximation of Oximes to the Corresponding Carbonyl Compounds Using Bromate Exchange Resin.
Authors: Sikdar Atul P. , Das Pranab J. 
Published: October 2007

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, please click on HTML or PDF.
Preparation and Reactions of Some 2,2‐Difunctional 1,1‐Dibromocyclopropanes.
Authors: Baird Mark S. , Boitsov Vitali M. , Stepakov Alexander V. , Molchanov Alexander P. , Kopf Jurgen , Rajaratnam Mohanathas , Kostikov Rafael R. 
Published: October 2007

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, please click on HTML or PDF.
Electron Transfer Promoted Regioselective Ring‐Opening Reaction of Cyclopropyl Silyl Ethers.
Authors: Hasegawa Eietsu , Yamaguchi Naoto , Muraoka Hiroyasu , Tsuchida Hiroyuki 
Published: October 2007

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, please click on HTML or PDF.
N‐Tosylhydrazones as Reagents for Cross‐Coupling Reactions: A Route to Polysubstituted Olefins.
Authors: Barluenga Jose , Moriel Patricia , Valdes Carlos , Aznar Fernando 
Published: October 2007

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, please click on HTML or PDF.
Design and Synthesis of a Tridentate Ligand for Asymmetric Bifunctional Catalysis.
Authors: Casarotto Virginie , Li Zhongtao , Boucau Julie , Lin Yun‐Ming 
Published: October 2007

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, please click on HTML or PDF.
Fast and Chemoselective Transfer Hydrogenation of Aldehydes Catalyzed by a Terdentate CNN Ruthenium Complex [RuCl(CNN)(dppb)].
Authors: Baratta Walter , Siega Katia , Rigo Pierluigi 
Published: October 2007

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, please click on HTML or PDF.
Neodymium(III)‐Mediated Reformatsky‐Type Reactions of α‐Halo Ketones with Carbonyl Compounds.
Authors: Kirsch Stefan F. , Liebert Clemence 
Published: October 2007

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, please click on HTML or PDF.
Practical Method for 2‐Hydroxyphenylketimine Synthesis.
Authors: Raeisaenen Minna T. , Elo Pertti , Kettunen Mika , Klinga Martti , Leskelae Markku , Repo Timo 
Published: October 2007

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, please click on HTML or PDF.
Rhodium Chloride Catalyzed Facile Synthesis of α‐Aminonitriles.
Authors: Pasha M. A. , Nanjundaswamy H. M. , Jayashankara V. P. 
Published: October 2007

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, please click on HTML or PDF.
Lewis Acid Catalyzed Regioselective Ring Opening of Azetidines with Alcohols and Thiols.
Authors: Dwivedi Sandeep K. , Gandhi Shikha , Rastogi Namrata , Singh Vinod K. 
Published: October 2007

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, please click on HTML or PDF.
Gold(I)‐ and Broensted Acid Catalyzed Ring‐Opening of Unactivated Vinylcyclopropanes with Sulfonamides.
Authors: Shi Wen‐Jian , Liu Yanyun , Butti Pietro , Togni Antonio 
Published: October 2007

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, please click on HTML or PDF.
Supported Ionic Liquid Catalyst (Pd‐SILC) for Highly Efficient and Recyclable Suzuki—Miyaura Reaction.
Authors: Hagiwara Hisahiro , Ko Keon Hyeok , Hoshi Takashi , Suzuki Toshio 
Published: October 2007

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, please click on HTML or PDF.
Light‐Fluorous Safety‐Catch Arylgermanes — Exceptionally Robust, Photochemically Activated Precursors for Biaryl Synthesis by Pd(0)‐Catalyzed Cross‐Coupling.
Authors: Spivey Alan C. , Tseng Chih‐Chung , Hannah Joseph P. , Gripton Christopher J. G. , de Fraine Paul , Parr Nigel J. , Scicinski Jan J. 
Published: October 2007

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, please click on HTML or PDF.