bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Synthesis and Structural Studies of the Transition‐Metal‐Doped Rh Perovskites LaMn0.5Rh0.5O3 and LaCu0.5Rh0.5O3.
Authors: Ting Jimmy , Kennedy Brendan J. , Zhang Zhaoming , Avdeev Maxim , Johannessen Bernt , Jang Ling‐Yun 
Published: July 2010

AbstractThe title compounds are synthesized by solid state reaction of stoichiometric mixtures of La2O3, Rh, and Mn2O3 or CuO (1300 °C, 6 d) and characterized by XANES and powder synchrotron X‐ray and neutron diffraction.
ChemInform Abstract: Catalytic Asymmetric Conjugate Addition of α‐Cyanoketones for the Construction of a Quaternary Stereogenic Center.
Authors: Kawato Yuji , Takahashi Noriko , Kumagai Naoya , Shibasaki Masakatsu 
Published: July 2010

AbstractThe addition of (hetero‐)aryl vinyl ketones to the cyclic cyanoketones provides 1,5‐dicarbonyl compounds with good to excellent yields and enantioselectivities with exception of alkyl vinyl ketone (IIa).
ChemInform Abstract: Copper(I)‐Catalyzed Substitution Reactions of Propargylic Amines: Importance of C(sp)—C(sp3) Bond Cleavage in Generation of Iminium Intermediates.
Authors: Sugiishi Tsuyuka , Kimura Akifumi , Nakamura Hiroyuki 
Published: July 2010

AbstractSubstitution reactions of propargylic amines using various secondary amines proceed in the presence of a copper(I) catalyst.
ChemInform Abstract: Conjugated Diene‐Assisted Allylic C—H Bond Activation: Cationic Rh(I)‐Catalyzed Syntheses of Polysubstituted Tetrahydropyrroles, Tetrahydrofurans, and Cyclopentanes from Ene‐2‐Dienes.
Authors: Li Qian , Yu Zhi‐Xiang 
Published: July 2010

AbstractThe first example of conjugated diene‐assisted activation of an allylic C—H bond and its addition to alkenes is reported.
ChemInform Abstract: Cross Coupling in Water: Suzuki—Miyaura Vinylation and Difluorovinylation of Arylboronic Acids.
Authors: Pschierer Jan , Peschek Natalie , Plenio Herbert 
Published: July 2010

AbstractA general and efficient protocol for the Suzuki—Miyaura vinylation of arylboronic acids in aqueous media is developed utilizing a catalyst system consisting of Na2PdCl4 and the commercially available, water‐soluble fluorenylphosphine ligand cataCXium F sulf.
ChemInform Abstract: Heterogeneous Asymmetric Henry Reaction Using a Chiral Bis(oxazoline)‐Copper Complex Immobilized on Magnetically Separable Mesocellular Mesoporous Silica Support.
Authors: Lee Jun‐Mun , Kim Jaeyun , Shin Yongje , Yeom Chang‐Eun , Lee Ji Eun , Hyeon Taeghwan , Kim B. Moon 
Published: July 2010

AbstractA chiral bis(oxazoline) ligand is immobilized onto a magnetically separable hierarchically‐ordered mesocellular mesoporous silica (M‐HMMS) using click chemistry.
ChemInform Abstract: Efficient Aerobic Ruthenium‐Catalyzed Oxidation of Secondary Alcohols by the Use of a Hybrid Electron Transfer Catalyst.
Authors: Johnston Eric V. , Karlsson Erik A. , Tran Lien‐Hoa , Aakermark Bjoern , Baeckvall Jan‐E. 
Published: July 2010

AbstractAn efficient biomimetic catalyst system for the title reaction is developed.
ChemInform Abstract: Synthesis and in vitro Antibacterial Evaluation of 1‐Substituted‐4‐ethoxycarbonylmethylthiosemicarbazides (III) and Products of Their Dehydrocyclization.
Authors: Siwek Agata , Stefanska Joanna , Wawrzycka‐Gorczyca Irena , Wujec Monika 
Published: July 2010

AbstractThe synthesized compounds are screened for their antibacterial activity, but only three of the tested substances show weak potency against Gram‐positive bacteria.
ChemInform Abstract: A Simple Synthesis of Pyrroles Catalyzed by Acidic Resin under Solvent‐Free Conditions.
Authors: Yuan Shizhen , Li Zhen , Xu Ling 
Published: July 2010

AbstractA simple and effective Paal—Knorr condensation catalyzed by a macroporous strongly acidic styrene resin containing ‐SO3H groups (D001) is reported.
ChemInform Abstract: Dy(OTf)3/Pybox‐Catalyzed Enantioselective Friedel—Crafts Alkylation of Indoles with α,β‐Unsaturated Trifluoromethyl Ketones.
Authors: Sasaki Shigeru , Yamauchi Takayasu , Higashiyama Kimio 
Published: July 2010

AbstractIn most cases, good yields and enantioselectivities are obtained.
ChemInform Abstract: Direct Organocatalytic Asymmetric Aldol Reaction of α‐Isothiocyanato Imides to α‐Ketoesters under Low Ligand Loading: A Doubly Stereocontrolled Approach to Cyclic Thiocarbamates Bearing Chiral Quaternary Stereocenters.
Authors: Jiang Xianxing , Zhang Gen , Fu Dan , Cao Yiming , Shen Fangfang , Wang Rui 
Published: July 2010

AbstractThe title reaction provides a new and convenient method to prepare synthetically important cyclic thiocarbamates with good to high diastereo‐ and enantioselectivity.
ChemInform Abstract: Pd(II)‐Catalyzed Hydroxyl‐Directed C—H Olefination Enabled by Monoprotected Amino Acid Ligands.
Authors: Lu Yi , Wang Dong‐Hui , Engle Keary M. , Yu Jin‐Quan 
Published: July 2010

AbstractThe first examples for Pd(II)‐catalyzed C—H activation of alcohols are presented.
ChemInform Abstract: Catalyst‐Free Regioselective Synthesis of Benzopyran‐Annulated Thiopyrano[2,3‐b]thiochromen‐5‐(4H)‐one Derivatives by Domino‐Knoevenagel‐hetero‐Diels—Alder Reaction of Terminal Alkynes with 4‐Hydroxy Dithiocoumarin in Aqueous Medium.
Authors: Majumdar K. C. , Taher Abu , Ponra Sudipta 
Published: July 2010

AbstractA simple one‐pot procedure allows the direct synthesis of the title compounds.
ChemInform Abstract: Radical Migration of Substituents of Aryl Groups on Quinazolinones Derived from N‐Acyl Cyanamides.
Authors: Larraufie Marie‐Helene , Courillon Christine , Ollivier Cyril , Lacote Emmanuel , Malacria Max , Fensterbank Louis 
Published: July 2010

AbstractTwo C—C and one C—N bonds are formed by an unprecedented radical cascade reaction involving the migration of ortho‐hydrogen or an ortho‐alkyl group at the phenyl ring of N‐benzoyl cyanamides to give pyrrolo‐ or pyrido‐fused quinazolinones.
ChemInform Abstract: Synthesis of 1,2‐Dihydro‐3‐benzoxepins by the Reaction of 2‐Lithio‐β‐methoxystyrenes with Epoxides Followed by Hydroiodic Acid Catalyzed Cyclization.
Authors: Kobayashi Kazuhiro , Hashimoto Hiroo , Nagaoka Toshiyuki , Shirai Yuu , Konishi Hisatoshi 
Published: July 2010

AbstractThe first general method for the synthesis of 1,2‐dihydro‐3‐benzoxepin derivatives (10 examples) is reported.
ChemInform Abstract: Overriding Felkin Control: A General Method for Highly Diastereoselective Chelation‐Controlled Additions to α‐Silyloxy Aldehydes.
Authors: Stanton Gretchen R. , Johnson Corinne N. , Walsh Patrick J. 
Published: July 2010

AbstractDialkylzincs, functionalized dialkylzincs, and in situ generated (E)‐di‐, (E)‐tri‐, and (Z)‐disubstituted vinylzinc species are added to aldehydes (I) with high selectivity for chelation‐controlled products in the presence of alkylzinc halides or triflates.
ChemInform Abstract: A Simple and Effective Synthesis of Activated Vinylphosphonates from 3‐Methoxy‐2‐diethoxyphosphorylacrylate.
Authors: Janecki Tomasz , Albrecht Anna , Koszuk Jacek F. , Modranka Jakub , Slowak Dominika 
Published: July 2010

AbstractSubstrate (I) reacts with nitrogen, carbon and phosphorus nucleophiles to give β‐substituted vinylphosphonates.
ChemInform Abstract: A Short Total Synthesis of (+)‐Omaezakianol via an Epoxide‐Initiated Cationic Cascade Reaction.
Authors: Xiong Zhaoming , Busch Robert , Corey E. J. 
Published: July 2010

AbstractThe key step in the synthesis of the title compound (III) is the transformation of the pentaepoxide (I) into the furan derivative (II).
ChemInform Abstract: Structural Revisions of Blumenol C Glucoside and Byzantionoside B.
Authors: Matsunami Katsuyoshi , Otsuka Hideaki , Takeda Yoshio 
Published: July 2010

AbstractA modified Mosher′s method is used for the determination of the absolute stereochemistry of blumenol C glucoside (I) and byzantionoside B (II).
ChemInform Abstract: Synthesis and Investigation of the Biological Properties of 6‐Oxa‐8α‐analogues of Steroid Estrogenes Containing a Methyl Group at C‐4.
Authors: Morozkina S. N. , Selivanov S. S. , Selivanov S. I. , Drozdov A. S. , Eshchenko N. D. , Shavva A. G. 
Published: July 2010

AbstractIt is found that the introduction of a methyl group in position C‐4 of steroids leads to a loss of uterotropic and hypertriglyceridemic effects.
ChemInform Abstract: Rapid Access to Morphinones: Removal of 4,5‐Ether Bridge with Pd‐Catalyzed Triflate Reduction.
Authors: Hupp Christopher D. , Neumeyer John L. 
Published: July 2010

AbstractA new alternative route to remove the 4,5‐ether bridge of opoids (I) includes an opoid‐4‐triflate intermediate and subsequent Pd‐catalyzed reduction.
Thinking, feeling and deciding: The influence of emotions on the decision making and performance of traders
Authors: Fenton‐O'Creevy Mark , Soane Emma , Nicholson Nigel , Willman Paul 
Published: July 2010

AbstractWe report on a qualitative investigation of the influence of emotions on the decision making of traders in four City of London investment banks, a setting where work has been predominantly theorized as dominated by rational analysis. We conclude that emotions and their regulation play a central role in traders' decision making. We find differences between high and low performing traders in how they engage with their intuitions, and that different strategies for emotion regulation have material consequences for trader behavior and performance. Traders deploying antecedent‐focused emotional regulation strategies achieve a performance advantage over those employing primarily response‐focused strategies. We argue that, in particular, response‐focused approaches incur a performance penalty, in part because of the reduced opportunity to combine analysis with the use of affective cues in making intuitive judgments. We discuss the implications for our understanding of emotion and decision making, and for traders' practice. Copyright © 2010 John Wiley & Sons, Ltd.
Einblick in die Funktion der Nicht‐Gene – das Encode‐Projekt
Authors: Groß Michael 
Published: July 2010

AbstractNur ein Prozent unseres Genoms besteht aus Genen. Der Rest wurde lange Zeit als DNA‐Müll abgetan. Eine Pilotstudie zeigt nun, dass diese 99 Prozent – repräsentiert durch eine einprozentige Stichprobe – reich an Funktionselementen sind. Wir haben ihre Bedeutung nur noch nicht verstanden.
Phasenoptimierte LC – Beispiel Sprengstoffe
Authors: Engewald Werner , Matysik Fank‐Michael , Schumann Ulrike 
Published: July 2010

AbstractEin segmentiertes Kartuschensäulensystem für die HPLC optimiert Analysenzeit und Auflösung bei schwierigen Trennaufgaben, etwa bei der Analyse von Explosivstoffen und sprengstofftypischen Verbindungen. Zusätzlich machen ein UV‐Detektor und ein elektrochemischer Detektor, kombiniert eingesetzt, die Analysenergebnisse zuverlässiger.
Die Branche im Fokus
Authors: Schlimm Christian 
Published: July 2010

AbstractChemiker haben als Branchenanalysten bei Banken, Brokern oder Investmentgesellschaften ihr Fachwissen als Alleinstellungsmerkmal: Intern ernten sie bei fachlichen Fragen selten Widerspruch, und in der externen Kommunikation mit Unternehmensvertretern sind sie oft besser akzeptiert.
In ungewohnter Umgebung
Authors: Breuker Kathrin 
Published: July 2010

AbstractStruktur, Faltung und Dissoziation von Proteinen in der Gasphase zu studieren, scheint wenig praktische Bedeutung zu haben. Doch tatsächlich können Proteine in dieser unnatürlichen Umgebung mit massenspektrometrischen Methoden identifiziert, charakterisiert, und die Architekturen von biologisch relevanten Proteinkomplexen untersucht werden.
Schwingende Gerüste und tanzende Wassermoleküle
Authors: Havenith‐Newen Martina 
Published: July 2010

AbstractMolekülanregungen, die energetisch oberhalb des Mikrowellen‐ und unterhalb des Infrarotbereiches liegen, sind bisher wenig erforscht. Doch das Fenster in den Terahertzbereich öffnet sich: THz‐Spektroskopie liefert Informationen über die Strukturbildung in kristallinen Proben und erlaubt die direkte Messung der Solvatationsdynamik von Biomolekülen.
140 Jahre chemische Gesellschaften in Deutschland
Authors: Simons Arno 
Published: July 2010

AbstractDer besondere Charakter der Gesellschaft Deutscher Chemiker liegt darin, dass sie für Mitglieder aus Wissenschaft und Industrie offen ist. Das ist durchaus nicht selbstverständlich: Bis 1945 gab es die Deutsche Chemische Gesellschaft als wissenschaftliche Gesellschaft und den Verein Deutscher Chemiker als Standes‐ und Berufsvertretung.
Oberflächenchemie, Knockout‐Mäuse und Magnetowiderstand
Authors: Freund Hans‐Joachim , Bruno Patrick , Remenyi Christian 
Published: July 2010

AbstractNach 19 Jahren erhält wieder ein deutscher Wissenschaftler den Chemie‐Nobelpreis: Gerhard Ertl für seine Untersuchungen zu Prozessen an Festkörperoberflächen. Der Nobelpreis für Physik geht an Albert Fert und Peter Grünberg. Beide hatten unabhängig voneinander den Riesenmagnetowiderstand entdeckt. Den Nobelpreis für Medizin erhalten Mario Capecchi, Martin Evans und Oliver Smithies.
Characteristics, impact and treatment of 6000 headache attacks: The PAMINA study
Authors: Lieba‐Samall Doris , Wöberl Christian , Weberl Michael , Schmidtl Karin , Wöber‐Bingöll Çiçek ,   The PAMINA‐Study Group
Published: July 2010

AbstractThe aim of this study was to prospectively evaluate the characteristics of headache attacks, their impact on daily activities as well as the type and efficacy of acute medication in patients with migraine.We included 281 patients with episodic migraine (87% females, aged 41.2±12.1). All patients kept a headache diary for 3 months covering headache characteristics, therapy and questions adopted from the Headache Impact Test (HIT‐6) for rating the impact of each single headache attack (HIT‐6 s). For evaluating the efficacy of acute medication we compared triptans with other compounds using headache duration as outcome parameter.Of 6051 headache attacks 52.8% fulfilled the ICHD‐II criteria of migraine. The HIT‐6 s score was 2.4±2.2 (range 0–6). It was lowest in untreated headaches (2.0±2.1) and highest in those treated with a combination of triptans and other compounds (4.1±2.0, p <0.001). Patients used triptans on 8.0% of all headache days, other compounds on 33.1%, a combination of both on 1.5% and no medication on 57.3% of the headache days. Migraine attacks of moderate or severe intensity treated with triptans alone lasted significantly shorter than those treated with other compounds (5.1±3.6 vs. 6.9±5.3 h, p <0.001).In conclusion, almost 50% of the headaches occurring in patients with migraine do not fulfill migraine criteria. Use of triptans is associated with a shorter duration of moderate and severe migraine attacks compared to use of other compounds.
Hypoesthesia in the Distal Residual Limb of Amputees
Authors: Harden R. Norman , Gagnon Christine M. , Khan Anjum , Wallach Gila , Zereshki Arzhang 
Published: July 2010

ObjectiveTo test the emerging hypothesis that there is polymodal fiber degeneration/loss in distal residual limbs (DRL) of amputees.DesignProspective qualitative and quantitative psychophysical testing.SettingA pain research center at an urban academic rehabilitation hospital.ParticipantsForty‐four amputees (32 with pain, 12 without pain) with a single (upper or lower) limb amputation. Subjects are a clinical “convenience” sample derived from our amputee or prosthetic clinics.MethodsInterventions were prospectively acquired psychophysical tests. The primary quantitative test was thermal Quantitative Sensory Testing (tQST) using a Peltier type thermal testing device, assessing sites on the DRL compared with anatomically similar regions on the contralateral “unaffected” extremity.ResultsPerceptual responses for several qualitative psychophysical stimuli and perceptual thresholds for tQST cold sensation were significantly reduced in the DRL (t(43) = −2.613, P = .012). There were no significant tQST differences in thresholds for warm perception, cold pain, or hot pain (P > .05).ConclusionThese results show a point prevalence of differential hypoesthesia in distal residual limbs. There was a selective loss of cold, but not warm perception or threshold for hot or cold pain by tQST. There are several possible explanations for this polymodal and selective hypoesthesia; specifically, these data may be indicative of a differential “dying back” peripheral neuropathy of the DRL, which may be operational in such clinical features as postamputation pain.
Skateboarding Injuries in Vienna: Location, Frequency, and Severity
Authors: Keilani Mohammad , Krall Christoph , Lipowec Lucas , Posch Martin , Komanadj Tanya Sedghi , Crevenna Richard 
Published: July 2010

ObjectiveTo describe injury patterns of skateboard‐associated injuries (SAIs) and to assess the frequency and severity of SAIs depending on an athlete's skateboarding experience.DesignCross‐sectional observation.SettingSkating areas.ParticipantsA total of 100 Viennese skateboarders.InterventionsNo intervention.Main Outcome MeasuresThe participants filled in a questionnaire that was used to assess selected sociodemographic data; duration and frequency of skateboarding; “stance”; and localization, rate, as well as the severity of SAIs during the past 24 months. Skating behavior and sociodemographic data were compared with frequency and severity of SAIs.ResultsResponse rate of questionnaires was 75% (n = 75) of the participants. Duration of skateboarding was 8 ± 5 years, and training time was 18 ± 11 hours/week. A total of 97% (73) of the respondents reported at least one injury: in 52% (39) of the respondents the most serious injury was mild to moderate (laceration, contusion, strain/sprain, and bruise), whereas in 45% (34) it was severe (ligament rupture, fracture). A total of 33% (13) of participants experiencing only mild‐to‐moderate injuries consulted a physician compared with 94% (32) with at least one serious injury. The most severely affected regions were lower leg/ankle/foot in 32% (24) of all respondents who experienced at least one severe injury and forearm/wrist/hand in 16% (12) who experienced at least one severe injury. Only 13% (10) used protective equipment. Multivariate logistic regression for the occurrence of at least one severe injury with all socioeconomic and sport‐relevant data investigated revealed significant positive correlations with weekly training time (P = .037) and years of experience (P = .021). However, after correcting for multiple testing (Bonferroni adjustment for 8 tests), no significances remained.ConclusionMore experienced skateboarders seem to have a greater risk of incurring severe SAIs, but sociodemographic factors seem to have no influence on injury risk in this population. Only a minority of skateboarders used protective equipment.
Injectate Volumes Needed to Reach Specific Landmarks in Lumbar Transforaminal Epidural Injections
Authors: Furman Michael B. , Mehta Ariz R. , Kim Ruby E. , Simon Jeremy I. , Patel Rikin , Lee Thomas S. , Reeves Ryan S. 
Published: July 2010

ObjectivesTo identify the volumes of contrast material needed to reach specific landmarks during lumbar transforaminal epidural injections (L‐TFEIs).DesignProspective, nonrandomized, observational human study.SettingAcademic/private pain management practice.PatientsSixty‐nine patients undergoing L‐TFEIs were investigated. Sixty patients were included in this study.InterventionsL‐TFEIs were performed with the use of contrast‐enhanced fluoroscopic visualization.Main Outcome MeasurementsAfter the appropriate spinal needle position was confirmed, up to 5.0 mL of nonionic contrast material was slowly injected. Under biplanar fluoroscopic guidance, contrast volumes were recorded as flow reached specific anatomic landmarks: ipsilateral neural foramen, ipsilateral disks superior and inferior to the injected level, and across the midline of the spinous process.ResultsAfter 1.1 mL of contrast was injected, 100% of L‐TFEIs spread to the medial aspect of the superior pedicle (PED) of the corresponding level of injection. After 2.8 mL of contrast was injected, 95% of L‐TFEIs spread to the superior aspect of the superior intervertebral disk (IVD) of the corresponding level of injection. After 3.6 mL of contrast was injected, 95% of L‐TFEIs spread to the inferior aspect of the inferior IVD of the corresponding level of injection. After 3 mL of contrast was injected, 88% of L‐TFEIs spread to cover both the superior and inferior IVDs of the corresponding level of injection. After 4 mL of contrast was injected, 93% of L‐TFEIs spread to cover both the superior and inferior IVDs of the corresponding injection. After 4 ml of contrast was injected, 55% of L‐TFEIs spread beyond the midline of the spinous process, but barely.ConclusionThis study demonstrates injectate volumes needed to reach specific anatomic landmarks in L‐TFEIs. A volume of 4.0 mL of injectate reaches both the superior aspect of the superior IVD and the inferior aspect of the inferior IVD 93% of the time.
The Effects of a Brief Relaxation Program on Symptom Distress and Heart Rate Variability in Cancer Patients
Authors: Asher Arash , Palmer J. Lynn , Yadav Rajesh R. , Yusuf Syed W. , Konzen Benedict , Bruera Eduardo , Guo Ying 
Published: July 2010

ObjectivesTo determine whether a 15‐minute, one‐time guided relaxation program for cancer patients could improve symptom distress as measured by the Edmonton Symptom Assessment System (ESAS). In addition, we were interested in characterizing the changes of the autonomic nervous system, as demonstrated by heart rate variability (HRV) high‐frequency (HF) spectral analysis, before and after this relaxation program.DesignNonrandomized pilot study.SettingComprehensive cancer center.MethodsTwenty cancer patients underwent a 15‐minute relaxation program. The ESAS and a 5‐minute HRV recording were completed before and after the relaxation program.Main Outcome MeasuresThe differences between the pre‐ and post‐summed ESAS score and HRV values were compared by a paired t‐test.ResultsThe summed ESAS scores were significantly lower after the relaxation program (P < .01), with an average 31% decrease in total score. However, no differences were found in HRV HF power. There was no correlation between the change in HRV HF and change in symptom distress, as measured by ESAS.ConclusionsA brief guided relaxation program can significantly improve symptoms as measured by ESAS. More research is required to understand the effects of relaxation on HF HRV power.
Hybridization and nonprofit organizations: The governance challenge
Authors: Smith Steven Rathgeb 
Published: July 2010

AbstractIncreasingly, public service delivery is characterized by hybrid organizational structures with mixed public, nonprofit, and for-profit characteristics. This study examines the governance and policy implications of hybrid organizations in public services with a specific focus on nonprofit organizations. These arrangements can range from very informal relationships among staff in different organizations to formal, binding contractual agreements among different organizations and nonprofit organizations with for-profit subsidiaries. Increasing hybridization among nonprofit organizations represents the restructuring of the state and the adaptive response to these organizations to an increasingly turbulent environment. Hybridization can present complex governance challenges for nonprofits; however, hybrid structures can be an asset for nonprofits in the competition for public and private resources and can promote broader community and political support.