bluuebunny/crossref_metadata_2025 huggingface dataset:
Huit étapes pour un triage infirmier optimal à la salle d’urgence
Authors: Gagnon-Gervais Mirelle , Simard Geneviève , Lapierre Alexandra
Published: March 2024

Le triage infirmier consiste à évaluer la condition de santé d’une personne et à déterminer le niveau de priorité de soins nécessaire. Le triage est donc essentiel pour le bon fonctionnement des salles d’urgence au Québec. Bien qu’il nécessite des compétences avancées, de plus en plus d’infirmiers et d’infirmières novices dans le domaine sont appelés à trier en raison d’un manque de personnel expérimenté. Cet article vise à présenter les huit étapes essentielles pour un triage optimal, du pré triage jusqu’à la réévaluation, et ce, dans l’optique de guider les infirmiers et infirmières face à cette activité clinique complexe. Un aide-mémoire est également présenté à la fin de cet article.
Douleur aux membres inférieurs : banal ou fatal ?
Authors: Amiot Nathalie , Carrier Jessie
Published: March 2024

La douleur aux membres inférieurs est un motif de consultation qui peut être difficile à évaluer par ses présentations cliniques parfois confondantes ainsi que ses nombreux diagnostics différentiels. D’ailleurs, certains diagnostics ne doivent pas être pris à la légère en raison du risque élevé de complications associées. Ainsi, cet article met en évidence l’importance d’une évaluation rigoureuse de la part de l’infirmière d’urgence afin de contribuer à améliorer la prise en charge et ainsi réduire le risque de complications. Par le biais d’une mise en situation, cet article permet également de faire la révision du questionnaire et de l’examen physique reliés à plusieurs diagnostics fatales et bénins associés à la douleur aux membres inférieurs.
Les incontournables en santé mentale à l’urgence
Authors: Fortier Laurence , Carrier Audrey
Published: March 2024

Considérant la prévalence élevée des troubles de santé mentale au Québec, il est primordial de procéder à une évaluation holistique des patients afin d’éviter une mauvaise interprétation de leur présentation clinique. Évaluer l’état mental et l’état physique de manière fragmentée pourrait causer des erreurs dans l’interprétation des signes et symptômes manifestés par le patient. Cet article vise donc à outiller les infirmières d’urgence face à l’évaluation et à la prise en charge d’une personne présentant des symptômes s’apparentant à ceux d’une condition de santé mentale ou à un problème de santé mentale établi. L’article abordera des principes liés à l’évaluation de la condition physique et mentale, l’évaluation du risque suicidaire, les principes importants associés à la médication présentant un risque, la consommation, la prévention de la violence et la surveillance requise. À la fin de cet article, un outil clinique est offert aux infirmières afin de les aider à structurer leurs évaluations et leurs interventions face à une clientèle présentant une condition de santé mentale à l’urgence.
« ÉCRIRE SANS MOURIR »
Authors: Ballester Julian , Godin Louis-Daniel
Published: March 2024

Cet article se penche sur le travail de l’écriture de Gagnon, envisagé dans sa
dimension subjective où se trouve mis à découvert le vide qui habite toute parole. S’y
trouvent analysés les textes théoriques de Gagnon publiés au sein de périodiques et son
premier texte poétique, où la quête d’atteindre ce vide – que Gagnon décline à travers
l’image de « l’interstice signifiant » – est manifeste, voire explicitée : le recueil
Antre (1978). Il s’agit dès lors de cerner, avec les écrits de Gagnon et en
déployant certaines notions psychanalytiques qui impulsent son écriture (jouissance, réel,
pulsion de mort), la nature de cet interstice, de même que ses potentialités poétiques et
politiques. Car l’écriture, chez Gagnon, est à la fois ce qui permet d’explorer cet
interstice et de ne pas y sombrer, un tel lieu étant conçu comme un espace de disparition,
où les repères sont amenés à être dissous, mais aussi, et par là même, comme un espace à
investir. L’article s’intéresse également aux conséquences institutionnelles de cette
proposition poétique de Gagnon, dans son propre parcours et au sein de certains discours
critiques ayant suivi ses publications.
LES FINS DU FÉMININ
Authors: Pelletier Laurence
Published: March 2024

Cet article porte son attention sur les textes essayistiques de Madeleine Gagnon
afin de rendre compte d’un sujet du féminisme confronté à sa propre fin. Retraçant, à
travers son oeuvre, les affiliations poétiques et rhétoriques de Gagnon à un féminisme dit
de « deuxième vague », l’autrice tend à situer et à circonscrire l’effet, sur son écriture,
du changement de paradigme que provoque l’avènement d’un féminisme de « troisième vague ».
Elle considère les textes à l’aune d’une histoire des idées mobilisée par le concept de la
« fin du féminin », limite conceptuelle qui met Gagnon face aux considérations de finalité
et de finitude. Cette limite s’avère déterminante pour son écriture. Paradoxalement, le
« féminin » se révèle à la fois vecteur d’absence, de disparition, de mort et principe
créatif, en ceci qu’il est la condition même de l’écriture de Gagnon.
Expanding Walter J. Ong’s Relationist Spirit: A Bibliographic Review Article
Authors: Farrell Thomas J.
Published: March 2024

The pioneering media ecology theorist Walter J. Ong (1912-2003; Ph.D. in English, Harvard University, 1955) is a tough act to follow. Question: Are there perhaps ways in which media ecology theorists today can follow his example by further developing themes in hismature work from the early 1950s onward? I have selected five themes from Ong’s 1982 book Orality and Literacy: The Technologizing of the Word in Methuen’s New Accents book series for attention in my bibliographic review. I have appropriated the word relationist for use here from Ong’s 1977 statement of what he himself styles as his relationist thesis about the historyof the word in Western cultural history. In brief, I suggest through my categorized and briefly annotated bibliography how media ecology theorists today can develop certain themes in Ong’s work by following what I am here styling as the relationist spirit that he himself followed in his mature work from the early 1950s onward.
Retrospective evaluation of the morphometric properties of intact maxillary sinus using cone-beam computed tomography for sex estimation in an Indian population
Authors: Ghavate Vrushali Raosaheb , Pawar Ajinkya M. , Atram Jatin , Vinay Vineet , Wahjuningrum Dian Agustin , Luke Alexander Maniangat , Rezallah Nader Nabil
Published: March 2024

Background

Sex estimation is crucial to forensic examinations. In order to estimate sex, intact bones are used if the majority of bones are severely deformed and recovered in fragments. This study aims to analyze sexual dimorphism in intact maxillary sinuses using CBCT scanning to evaluate morphometric properties for sex identification.

Methods

A total of 318 subjects, consisting of 159 males and 159 females, aged between 20 and 60 years without sinus pathology were included in this diagnostic, retrospective cross-sectional study. Bilateral measurements of the volume, height, width, and length of the maxillary sinuses were obtained and compared to evaluate the differences between sexes. Subsequently, a descriptive analysis using mean and standard deviation was performed, followed by a comparison between sexes with a p-value being less than 0.05 and Student’s t-test. Finally, a discriminant analysis was performed separately for the right and left maxillary sinuses.

Results

Males and females showed statistically significant variations in the length, width, and volume of the maxillary sinuses. Specifically, on the right side, males had longer maxillary sinuses than females (t = 5.6203,p < 0.0001). Meanwhile, on the left side, females had wider maxillary sinuses than males (t = 8.621,plt0.0001). In addition, males had greater volumes of maxillary sinuses on the right (t = 6.373,p < 0.0001) and left (t = 3.091,p < 0.0001) sides than females. The results of the discriminant analysis showed that the left width parameter had the highest accuracy of sex estimation (74.21%), followed by the Right Length (70.07%) and left volume (66.66%) parameters. The left height parameter had the lowest accuracy of sex estimation (49.37%).

Conclusion

In forensic odontology, the volume of maxillary sinus can serve as a valid radiographic indicator of sex estimation.
Outcome of a conservative policy for managing acute sigmoid diverticulitis
Authors: Shaikh S , Krukowski Z H
Published: March 2007

Background

A conservative policy for patients presenting with acute sigmoid diverticulitis is associated with a low operation rate, and low overall and operative mortality rates. The long-term consequences of such a policy were investigated.

Methods

Data were collected prospectively for 232 patients with acute sigmoid diverticulitis between 1990 and 2004. Details of all subsequent readmissions were obtained and survival to August 2005 was analysed.

Results

Of the 232 patients admitted, 60 (25·9 per cent) were known to have diverticulosis; in 172 patients it was a new diagnosis. Thirty-eight patients (16·4 per cent) underwent sigmoid resection, with one death. Three elderly patients in whom a decision was made not to operate had perforated diverticulitis at autopsy. Of 191 patients discharged without resection, 35 (18·3 per cent) subsequently underwent sigmoid resection: 26 (13·6 per cent) elective and nine (4·7 per cent) emergency, with one death.

Conclusion

A conservative policy is safe in both the short term and the long term.
Clinical Risk Score predicts yield of staging laparoscopy in patients with colorectal liver metastases
Authors: Mann C D , Neal C P , Metcalfe M S , Pattenden C J , Dennison A R , Berry D P
Published: March 2007

Background

Resection offers the only realistic chance of cure for hepatic colorectal metastases. The aim of this study was to examine the potential of laparoscopy and laparoscopic intraoperative ultrasonography (IOUS) for detecting incurable disease, and to determine whether the Clinical Risk Score (CRS) is useful in selecting patients for laparoscopy before hepatic resection.

Methods

All patients with potentially curable colorectal liver metastases who underwent staging laparoscopy and laparoscopic IOUS before planned hepatic resection between January 2000 and December 2004 were included. A preoperative CRS was determined for each patient and correlated with curability.

Results

Two hundred patients were identified, of whom 133 were found to have resectable disease at laparotomy. Laparoscopy detected 39 (58 per cent) of 67 patients with incurable disease, changing the management in 19·5 per cent of the 200 patients. The CRS correlated with the likelihood of detecting incurable disease; incurable disease was present in two of 31 patients with a CRS of 0–1, 35 of 129 with a score of 2–3 and 30 of 40 with a score of 4–5. The potential benefit of laparoscopy increased progressively with increasing CRS, changing management in none of 31 patients with a CRS of 0–1, 18 of 129 with a score of 2–3 and 21 of 40 with a score of 4–5.

Conclusion

Staging laparoscopy and IOUS detected more than half of the incurable disease in this cohort. Laparoscopy had a low diagnostic yield in patients with a CRS of 0–1 and its routine use in this group of patients is therefore not recommended.
Mixed‐Ligand Copper(II)–Phenanthroline–Dipeptide Complexes: Synthesis, Characterization, and DNA‐Cleavage Properties
Authors: Reddy Pulimamidi R. , Manjula Pallerla
Published: March 2007

The mixed‐ligand complexes [CuII(HisLeu)(phen)]+ (1) and [CuII(HisSer)(phen)]+ (2; phen=1,10‐phenanthroline) were synthesized and characterized. The intercalative interaction of the CuII complexes with calf‐thymus DNA (CT‐DNA) was probed by UV/VIS and fluorescence titration, as well as by thermal‐denaturation experiments, and the intrinsic binding constants (Kb) for the complexes with 1 and 2 were 4.2×103 and 4.9×103 M−1, resp. Both complexes were found to be efficient catalysts for the hydrolytic cleavage of plasmid pUC19 DNA, as tested by gel electrophoresis, converting the DNA from the supercoiled to the nicked‐circular form at rate constants of 1.32 and 1.40 h−1 for 1 and 2, resp.
Synthesis, and DNA‐Binding and DNA‐Photocleavage Properties of Multiply Charged Porphyrins
Authors: Wang Kai , Zhang Zhi , Wu Lei , Li Zao‐Ying
Published: March 2007

Four new cationic porphyrins, compounds 1–4, with five to seven positive charges, were synthesized, characterized, and investigated for their binding properties towards calf‐thymus DNA (CT‐DNA). UV/VIS and fluorescence‐titration data indicated strong binding, the apparent binding constants (Kapp; (1.3–10)×10−6 M) increasing with increasing number of charges, as determined by competitive fluorescence titration using ethidium bromide (EB) as molecular probe. These results were qualitatively confirmed by the observed photocleavage efficiency of the porphyrins towards plasmid pBR322 DNA.
Proton‐Stabilized Three‐Dimensional Anionic Framework in H[Zn6O2(BO3)3].
Authors: Massa Werner , Yakubovich Olga V. , Dimitrova Olga V.
Published: March 2007

ChemInform 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.
Photocatalytic Properties and Photoinduced Hydrophilicity of Surface‐Fluorinated TiO2.
Authors: Tang Junwang , Quan Hengdao , Ye Jinhua
Published: March 2007

ChemInform 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 Method for Synthesis of Ylidenemalononitriles.
Authors: Zhang Ming , Zhang Au‐Qin , Chen Huan‐Huan , Chen Jun , Chen Hai‐Yan
Published: March 2007

ChemInform 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.
Nitrene Equivalent Mediated Metal‐Free Ring Expansions of Alkylidenecyclopropanes and an Alkylidenecyclobutane.
Authors: Liang Yong , Jiao Lei , Wang Yuanyuan , Chen Yuanyuan , Ma Linge , Xu Jiaxi , Zhang Shiwei , Yu Zhi‐Xiang
Published: March 2007

ChemInform 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.
Stereoselective Debromination and Selective Reduction of vic‐Dibromides with Nickel Boride.
Authors: Khurana Jitender M. , Kandpal Bhaskar M. , Kukreja Gagan , Sharma Purnima
Published: March 2007

ChemInform 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.
Ru‐Catalyzed Stereoselective Addition of Imides to Alkynes.
Authors: Goossen Lukas J. , Blanchot Mathieu , Brinkmann Claus , Goossen Kaethe , Karch Ralph , Rivas‐Nass Andreas
Published: March 2007

ChemInform 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.
Efficient Addition Reaction of Bromonitromethane to Aldehydes Catalyzed by NaI: A New Route to 1‐Bromo‐1‐nitroalkan‐2‐ols under Very Mild Conditions.
Authors: Concellon Jose M. , Rodriguez‐Solla Humberto , Concellon Carmen , Garcia‐Granda Santiago , Diaz M. Rosario
Published: March 2007

ChemInform 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.
Stereocontrolled Route to Vicinal Diamines by [3.3] Sigmatropic Rearrangement of Allyl Cyanate: Asymmetric Synthesis of anti‐(2R,3R)‐ and syn‐(2R,3S)‐2,3‐Diaminobutanoic Acids.
Authors: Ichikawa Yoshiyasu , Egawa Haruka , Ito Takashi , Isobe Minoru , Nakano Keiji , Kotsuki Hiyoshizo
Published: March 2007

ChemInform 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 and Reactivity of Fluorine‐Containing Thiols and Thioacyl Halides.
Authors: Sizov A. Yu. , Kovregin A. N. , Serdyuk R. N. , Vorob'ev M. V. , Porosyatnikov V. A. , Tsvetkov A. A. , Korneev D. O. , Ermolov A. F.
Published: March 2007

ChemInform 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 Highly Selective Synthesis of Dialkenyl Sulfones via Cross‐Metathesis of Divinyl Sulfone.
Authors: Bieniek Michal , Koloda Dariusz , Grela Karol
Published: March 2007

ChemInform 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.
Converting gem‐Dimethyl Groups into Cyclopropanes via Pd‐Catalyzed Sequential C—H Activation and Radical Cyclization.
Authors: Giri Ramesh , Wasa Masayuki , Breazzano Steven P. , Yu Jin‐Quan
Published: March 2007

ChemInform 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.
Chemistry of Difluorocarbene: Synthesis and Conversion of Difluoro(methylene)cyclopropanes.
Authors: Cheng Zhan‐Ling , Xiao Ji‐Chang , Liu Chao , Chen Qing‐Yun
Published: March 2007

ChemInform 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 of Seven‐Membered Carbocycles Using Ring‐Closing Metathesis Reaction and Application to the Syntheses of Tormesol and the Cyathane Skeleton.
Authors: Nakashima Katsuyuki , Fujisaki Norihiro , Inoue Kosuke , Minami Atsushi , Nagaya Chisako , Sono Masakazu , Tori Motoo
Published: March 2007

ChemInform 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.
Studies on Novel Synthetic Methodologies. Part 113. A Mild and Simple Regioselective Iodination of Activated Aromatics with Iodine and Catalytic Ceric Ammonium Nitrate.
Authors: Das Biswanath , Krishnaiah Maddeboina , Venkateswarlu Katta , Reddy V. Saidi
Published: March 2007

ChemInform 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.
Biphenyl‐ and Terphenyl‐Based Recyclable Organic Trivalent Iodine Reagents.
Authors: Moroda Atsushi , Togo Hideo
Published: March 2007

ChemInform 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.
Unexpected Performance of Solid Alkaline Metal Hydroxides in Liquid Phase Oxidation of 1‐Phenylethanol.
Authors: Ben‐Harush Kfir , Wolfson Adi , Herskowitz Moti
Published: March 2007

ChemInform 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.
First Allylpalladium Systems Containing Chiral Imidazolylpyridine Ligands — Structural Studies and Catalytic Behavior.
Authors: Bastero Amaia , Bella Antonio F. , Fernandez Fernando , Jansat Susanna , Claver Carmen , Gomez Montserrat , Muller Guillermo , Ruiz Aurora , Font‐Bardia Merce , Solans Xavier
Published: March 2007

ChemInform 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.
(+)‐(S,S)‐Pseudoephedrine as a Chiral Auxiliary in Asymmetric Mannich Reactions: Scope and Limitations.
Authors: Iza Ainara , Vicario Jose L. , Carrillo Luisa , Badia Dolores
Published: March 2007

ChemInform 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.
Copper‐Catalyzed Asymmetric Synthesis of Chiral Allylic Esters.
Authors: Geurts Koen , Fletcher Stephen P. , Feringa Ben L.
Published: March 2007

ChemInform 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.
New Recyclable Catalytic System: PdCl2‐Dppc+ PF6‐‐[bmim][PF6] for the Suzuki Coupling Reaction.
Authors: Ren Yong , Yu Guang‐Ao , Guan Jintao , Liu Sheng Hua
Published: March 2007

ChemInform 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.
Efficient Intermolecular [2 + 2 + 2] Alkyne Cyclotrimerization in Aqueous Medium Using a Ruthenium(IV) Precatalyst.
Authors: Cadierno Victorio , Garcia‐Garrido Sergio E. , Gimeno Jose
Published: March 2007

ChemInform 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.
An Unusual and Stereoselective Michael Addition of α‐Amino Ester‐Derived N‐Lithiated Azomethine Ylides.
Authors: Soret Adrien , Blanco Luis , Deloisy Sandrine
Published: March 2007

ChemInform 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.
Isocorannulenofuran: A Versatile Building Block for the Synthesis of Large Buckybowls.
Authors: Sygula Andrzej , Sygula Renata , Rabideau Peter W.
Published: March 2007

ChemInform 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 of Benzo[b]benzo[2,3‐d]thiophen‐6,9‐diones via Palladium(II) Acetate Mediated Cyclization of 5‐Arylthiocyclohexa‐2,5‐diene‐1,4‐diones.
Authors: Ryu Chung‐Kyu , Choi Ik Hwa , Park Rae Eun
Published: March 2007

ChemInform 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—H Carbazole Synthesis from 2‐Chloroanilines via Consecutive Amination and C—H Activation.
Authors: Bedford Robin B. , Betham Michael
Published: March 2007

ChemInform 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.
Efficient One‐Pot, Two‐Step, Microwave‐Assisted Procedure for the Synthesis of Polysubstituted 2‐Aminoimidazoles.
Authors: Ermolat'ev Denis S. , Babaev Eugene V. , Van der Eycken Erik V.
Published: March 2007

ChemInform 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.
Zeolite‐Catalyzed Environmentally Friendly Synthesis of Benzimidazole Derivatives.
Authors: Hegedues Adrienn , Hell Zoltan , Potor Attila
Published: March 2007

ChemInform 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 New Application of the Pictet—Spengler Reaction to the Preparation of 4‐Substituted 1H‐2,3‐Benzoxazines.
Authors: Zheng Xiufang , Wang Xiaolei , Chang Junbiao , Zhao Kang
Published: March 2007

ChemInform 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.
Three Distinct Reactions of 3,4‐Dihydroisoquinolines with Azlactones: Novel Synthesis of Imidazoloisoquinolin‐3‐ones, Benzo[1]quinolizin‐4‐ones, and Benzo[d]azocin‐4‐ones.
Authors: Worayuthakarn Rattana , Thasana Nopporn , Ruchirawat Somsak
Published: March 2007

ChemInform 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 Novel Synthesis of Hexahydroazoninoindoles Using Activated Alkynes in an Azepine Ring Expansion.
Authors: Voskressensky Leonid G. , Akbulatov Sergey V. , Borisova Tatiana N. , Varlamov Alexey V.
Published: March 2007

ChemInform 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.
Highly Regioselective Rhenium‐Catalyzed Hydrosilylation of Styrenes.
Authors: Zhao Wen‐Guo , Hua Ruimao
Published: March 2007

ChemInform 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.
An Efficient Synthesis of Selective Human NR2A Antagonist NVP‐AAM077.
Authors: Li Gang‐Qin , Su Wei‐Ke , Yao Zhu‐Jun
Published: March 2007

ChemInform 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.
The First Enantiospecific Total Synthesis of (+)‐Seychellene.
Authors: Srikrishna A. , Ravi G. , Satyanarayana G.
Published: March 2007

ChemInform 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.
Marasmane Sesquiterpenes Isolated from Russula foetens.
Authors: Wang Xing‐Na , Shen Jian‐Hua , Du Jian‐Chang , Liu Ji‐Kai
Published: March 2007

ChemInform 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.
syn‐Selective Direct Catalytic Asymmetric Mannich‐Type Reactions of Aromatic and Heteroaromatic Hydroxy Ketones Promoted by Y[N(SiMe3)2]3/Linked‐BINOL Complexes.
Authors: Matsunaga Shigeki , Sugita Mari , Yamagiwa Noriyuki , Handa Shinya , Yamaguchi Akitake , Shibasaki Masakatsu
Published: March 2007

ChemInform 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 One‐Step Synthesis of a Carbasugar via a Wittig‐Horner/Mitsunobu/Michael Triple‐Tandem Mechanism.
Authors: Bussiere Antoine , Barragan‐Montero Veronique , Clavel Caroline , Toupet Loic , Montero Jean‐Louis
Published: March 2007

ChemInform 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.
Magnesium Perchlorate: Highly Efficient and Versatile Catalyst for the Ferrier Glycosylation Reaction.
Authors: Kamble Vinod T. , Bandgar Babasaheb P. , Khobragade Chandrahas N. , Gacche Rajesh N. , Kamble Vilas A.
Published: March 2007

ChemInform 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.
The First Total Synthesis of (R)‐Convolutamydine A.
Authors: Luppi Gianluigi , Monari Magda , Correa Rodrigo J. , de A. Violante Flavio , Pinto Angelo C. , Kaptein Bernard , Broxterman Quirinus B. , Garden Simon J. , Tomasini Claudia
Published: March 2007

ChemInform 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.
Oxachelin, a Novel Iron Chelator and Antifungal Agent from Streptomyces sp. GW9/1258.
Authors: Sontag Bernd , Gerlitz Martin , Paululat Thomas , Rasser Hans‐Falk , Gruen‐Wollny Iris , Hansske Friedrich G.
Published: March 2007

ChemInform 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.
Talosins A and B: New Isoflavonol Glycosides with Potent Antifungal Activity from Kitasatospora kifunensis MJM341. Part 1. Taxonomy, Fermentation, Isolation, and Biological Activities.
Authors: Yoon Tae Mi , Kim Jong Woo , Kim Jong Gwan , Kim Won Gon , Suh Joo Won
Published: March 2007

ChemInform 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.
Investigation of Nanocrystalline Phases in Li—La—Fe—O System Formed by the Decomposition of Acetylacetonato Complexes.
Authors: Vucinic‐Vasic M. , Antic B. , Kremenovic A. , Nikolic A. S. , Blanusa J. , Rakic S. , Spasojevic V. , Kapor A.
Published: March 2007

ChemInform 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.
Uniform NH4TiOF3 Mesocrystals Prepared by an Ambient Temperature Self‐Assembly Process and Their Topotaxial Conversion to Anatase.
Authors: Zhou Lei , Boyle David Smyth , O'Brien Paul
Published: March 2007

ChemInform 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.
Phosphorescent Dyes for Organic Light‐Emitting Diodes
Authors: Chou Pi‐Tai , Chi Yun
Published: March 2007

ChemInform 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.
Cyaphide (CP‐): The Phosphorus Analogue of Cyanide (CN‐)
Authors: Angelici Robert J.
Published: March 2007

ChemInform 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 and Stereoselective Functionalization of Silylated Heterocycles as a New Class of Formyl Anion Equivalents
Authors: Degl'Innocenti Alessandro , Pollicino Salvatore , Capperucci Antonella
Published: March 2007

ChemInform 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.
What We Have Learned from the Study of Solid p‐tert‐Butylcalix[4]arene Compounds
Authors: Ripmeester J. A. , Enright G. D. , Ratcliffe C. I. , Udachin K. A. , Moudrakovski I. L.
Published: March 2007

ChemInform 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.
Chemistry and Biology of Resorcylic Acid Lactones
Authors: Winssinger Nicolas , Barluenga Sofia
Published: March 2007

ChemInform 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 of Fluorine Compounds Based on Special Property of Fluorine Compounds
Authors: Kumadaki Itsumaro
Published: March 2007

ChemInform 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.
Glycosidase‐Catalyzed Synthesis of Oligosaccharides Through Intermediate Analogue Substrates
Authors: Shoda Shin‐ichiro , Kohri Michinari , Kobayashi Atsushi
Published: March 2007

ChemInform 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.
Catalysts for New Tasks — Preparation and Applications of Tunable Ruthenium Catalysts for Olefin Metathesis
Authors: Grela Karol , Michrowska Anna , Bieniek Michal
Published: March 2007

ChemInform 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.
Polar Order by Rational Design: Crystal Engineering with Parallel Beloamphiphile Monolayers
Authors: Glaser Rainer
Published: March 2007

ChemInform 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.
High‐performance liquid chromatographic enantioseparation of 1‐(aminoalkyl)‐2‐naphthol analogs on polysaccharide‐based chiral stationary phases
Authors: Sztojkov‐Ivanov Anita , Tóth Diana , Szatmári István , Fülöp Ferenc , Péter Antal
Published: March 2007

The enantiomers of various 1‐(α‐aminobenzyl)‐2‐naphthol and 1‐(aminoalkyl)‐2‐naphthol analogs were separated on cellulose‐tris‐3,5‐dimethylphenyl carbamate‐based chiral stationary phases (Chiralcel OD‐H and Chiralcel OD‐RH), using n‐hexane/2‐propanol/diethylamine or phosphate buffer/organic modifier mobile phases. The 3,5‐dimethylphenyl carbamoylated cellulose columns were effective in both normal and rev ersed‐phase modes. The effects of the mobile phase composition, the pH, the buffer concentration, and the structures of the substituents on the 2‐naphthol on the enantioseparations were studied. The absolute configuration and elution sequence were determined for 1‐(1‐amino‐2‐methylpropyl)‐2‐naphthol: the elution sequence was S < R. Chirality, 2007. © 2007 Wiley‐Liss, Inc.
The use of molecular assays to establish definitively the clonality of ipsilateral breast tumor recurrences and patterns of in‐breast failure in patients with early‐stage breast cancer treated with breast‐conserving therapy
Authors: Vicini Frank A. , Antonucci J. Vito , Goldstein Neal , Wallace Michelle , Kestin Larry , Krauss Daniel , Kunzmann Jonathan , Gilbert Samuel , Schell Scott
Published: March 2007

BACKGROUND.

Results from numerous trials have indicated that breast‐conserving therapy (BCT) produces outcomes equivalent to those produced by mastectomy in terms of both locoregional control and survival. However, conservative treatment has resulted in the dilemma of how best to address recurrences when they appear in a breast treated previously with radiation therapy. Attempts have been made to characterize ipsilateral breast tumor recurrences (IBTRs) as either true recurrences of the treated malignancy or new primary carcinomas, because cancers that represent new primary tumors may be associated with a more favorable prognosis compared with cancers that represent true recurrences.

METHODS.

The authors studied the clonality of IBTRs relative to the initial invasive carcinomas by using a polymerase chain reaction loss‐of‐heterozygosity molecular comparison assay in 29 patients who received breast‐conserving therapy (BCT).

RESULTS.

Twenty‐two IBTRs (76%) were related clonally to the initial carcinoma, and 7 IBTRs (24%) were clonally different. Clonally related IBTRs were more frequently higher grade (72.2% vs 14.3%; P = .009) and developed sooner after initial treatment (mean time to IBTR, 4.04 years in clonally related IBTRs vs 9.25 years in clonally different IBTRs; P = .002). Six patients subsequently developed distant metastases, and 5 of those patients (83.3%) had clonally related IBTRs. Clinical IBTR classification and molecular clonality assay results differed in 30% of all patients. The proportion of IBTRs that were related clonally at 5 years, 10 years, and 15 years after BCT were 93%, 67%, and 33%, respectively.

CONCLUSIONS.

Clinical classifications of IBTRs were unreliable methods for determining clonality in many patients. Molecular clonality assays provided a reliable means of identifying patients who may benefit from aggressive systemic therapy at the time of IBTR and also provided a more accurate assessment of the efficacy of various forms of local therapy. Cancer 2007. © 2007 American Cancer Society.
Effect of methamphetamine exposure during prenatal and preweaning periods lasts for generations in rats
Authors: Šlamberová Romana , Pometlová Marie , Rokyta Richard
Published: March 2007

Our previous studies demonstrated that methamphetamine (MA) administration during gestation and/or lactation affects maternal behavior in rats and that birth weight and sensory‐motor coordination of their pups are also influenced. The present study tested the hypothesis that the effect of MA induces long‐term changes affecting second generation of rats that were not exposed to the drug. Adult females exposed during prenatal and preweaning periods to 5 mg/kg MA daily, were examined for regularity of estrous cycle and mated with stimulus, unexposed males. Dams (nontreated absolute control, saline‐ and MA‐exposed) were observed with their pups in two tests of maternal behavior (observational and retrieval tests). Their pups were further tested throughout the preweaning period to examine their development. Our data demonstrate that MA‐exposed mothers displayed more nursing, were more often in the nest and in contact with their pups, and were faster in retrieving their pups than saline‐exposed and/or control mothers. There were no differences in litter characteristics, birth weight and weight gain of pups between groups. Interestingly, pups from mothers exposed to MA during prenatal and preweaning period had impaired sensory‐motor coordination. They achieved righting reflex in mid‐air later than both control groups. Additionally, they had more falls in rotarod and bar‐holding tests than pups from both control and saline‐exposed mothers. In homing performance, pups from MA‐ and saline‐exposed dams learned slower to return to the home box than pups from control dams. Thus, the present study demonstrates that MA abused by mothers may affect two generations of their offspring. © 2007 Wiley Periodicals, Inc. Dev Psychobiol 49: 312–322, 2007.
Effects of process variables for biodiesel production by transesterification
Authors: Akgün Nalan , İşcan Emine
Published: March 2007

In this study, biodiesel production from various vegetable oils by transesterification was studied, to determine the optimum conditions. Experiments were carried out by using different kinds of catalysts (sodium hydroxide, potassium hydroxide, barium hydroxide, pyrolitic coke and wood ash) and feedstocks (corn oil, sunflower oil, soybean oil, olive pomace oil and cottonseed oil) at 65 °C and an agitation speed of 1000 rpm. The neutralization step with controlled pH was performed by treatment with phosphoric acid. An experimental design was used to evaluate the effects of the parameters such as types of vegetable oils, kinds of catalysts, reaction time, alcohol/oil volumetric ratio and amount of catalyst, on the methyl ester conversion. Using response surface methodology, a quadratic polynomial equation was obtained by multiple regression analysis. It was found that catalyst concentration was the most effective parameter. Sodium hydroxide and potassium hydroxide exhibited a superior catalytic behavior, whereas pyrolitic coke and wood ash had to be used in excess amount or for prolonged reaction times. Moreover, the properties such as viscosity, density, calorific value, acid value, and refractive index of the biodiesel were measured. The tri‐, di‐, monoacylglycerols and glycerol residuals in the methyl esters produced were also quantified by GC analysis.
Analysis of phospholipids by NACE with on‐line ESI‐MS
Authors: Gao Fei , Zhang Zhengxiang , Fu Xiaofang , Li Wei , Wang Tao , Liu Huwei
Published: March 2007

A hyphenated method of nonaqueous capillary electrophoresis coupled to electrospray ionization mass spectrometry (NACE‐ESI‐MS) is described for the simultaneous analysis of phospholipids. The best results were obtained with a mixed solution of methanol/ACN (40:60 v/v) containing 20 mM ammonium acetate and 0.5% acetic acid, under the applied voltage of 30 kV and capillary temperature of 25°C. ESI‐MS measurements were performed in the negative mode with methanol/ACN (40:60 v/v) containing 50 mM ammonium acetate as sheath liquid at a flow rate of 2 μL/min. Different phospholipid classes have been successfully separated within 16 min, and the molecular species of every single class have been identified by using MS2 or MS3, which generates characteristic fragments through CID. The developed method has been applied to analyze the phospholipids extracted from rat peritoneal surface and the molecular species of phospholipid classes are presented.
A generalized continuum method for dynamic analysis of asymmetric tall buildings
Authors: Danay A. , Gluck J. , Gellert M.
Published: March 2007

The paper presents a continuum method for dynamic analysis of asymmetric tall buildings with uniform cross‐section in which the horizontal stiffness is provided by shear walls and columns of arbitrary shape and layout, coupled by horizontal beams.

The equations of motions are formulated in variational terms, including axial strain energy. Numerical solutions, obtained by using finite time differences and infinite polynomials, are presented for the response of a twenty‐storey building with six shear walls to an impact load and earthquake accelerations.

It is shown that omission of the axial deformations results in a substantially distorted pattern of behaviour, some of its effects being:

Overestimation of the bending stiffness of the coupled shear walls, with corresponding changes in their stiffness ratios.

Underestimation of the periods of the principal modes, with a corresponding change in the dynamic response.

Distortion of the magnitude, form, time of onset and coupling of the maximum displacements.

Pronounced change in the shear force and moment diagrams for the shear walls, the beams and the building as a whole.
Horizontal ground motion in los angeles during the san fernando earthquake
Authors: Crouse C. B.
Published: March 2007

Accelerograms, Fourier amplitude spectra and response spectra from ground motion recorded in the San Fernando earthquake at selected sites in Los Angeles were examined and compared. Although differences exist in the data from the bases of a group of six tall buildings close together near the intersection of Wilshire Boulevard and Normandie Avenue, the differences are not significant from the standpoint of design. A single design spectrum is most appropriate for this area, even though there exists a variety of foundation conditions, building properties and basement configurations for the six sites.

The degree to which soil‐structure interaction and the local geology affected the response could not be precisely determined from the basement accelerograms, although the data from the six Wilshire‐Normandie sites offered some evidence that soil‐structure interaction and local site conditions did not contribute significantly to the character of the recorded motions. There was some correlation between the degree of similarity in the response at two sites and their distance apart. Thus, it is possible that some differences in the response of the closely spaced buildings could result from different superposition of the seismic waves.

The shapes of response spectra from all of the sites studied, including the spectra from seven buildings 2–3 miles distant from the buildings near the intersection of Wilshire Boulevard and Normandie Avenue, indicate that the character of the ground motion was probably more dependent on the source mechanism and the travel paths of the earthquake waves, rather than on more local effects.
Observations and estimation of long‐period strong ground motion in the los angeles basin
Authors: Hanks Thomas C.
Published: March 2007

While the accurate estimation of ground‐motion amplitudes across the entire frequency band of engineering interest is not possible at the present time, the excitation and propagation of long‐period strong‐ground motion can be understood with existing seismological methodology. In the Los Angeles Basin, the long‐period strong ground motion excited by the San Fernando earthquake is dominated by the presence of surface waves, whose gross amplitude and frequency content are easily attributable to physical properties of the earthquake source and source‐station propagation paths. Observed measures of the long‐period strong ground motion of the Kern County earthquake relative to the San Fernando earthquake at two sites in the Los Angeles Basin which recorded both shocks can be predicted with considerable accuracy by a simple earthquake source model. This source model is extrapolated to represent the maximum credible earthquake likely to affect the Los Angeles area, taken to be a repeat of the Fort Tejon (1857) earthquake along the San Andreas fault. The measures of long‐period strong ground motion in the Los Angeles Basin estimated for it agree well with the comparable measures of Earthquake A‐2, intended to represent the same situation. For the purpose of aseismic design of long‐period structures, Earthquake A‐2 is a reasonable, if not all inclusive, estimate of the long‐period strong ground motion in the Los Angeles Basin generated by a magnitude 8+ earthquake along the San Andreas fault north and east of Los Angeles.
Response of beams to propagating boundary excitation
Authors: Masri S. F.
Published: March 2007

An exact solution is presented for the transient response of viscously damped Bernoulli‐Euler beams with arbitrary boundary conditions that are subjected to directly applied dynamic loads in addition to arbitrary support motion. It is shown that, for certain system characteristics, the wave‐like progression of the disturbance may have a significant influence on the structural response of such beams.
The dynamic foundation interaction of multistorey frames
Authors: Dumanoǧlu A. A. , Severn R. T.
Published: March 2007

This paper discusses the extent to which foundation properties influence the response of some framed structures to earthquakes.

Three stages can be isolated, the first of which checks the validity of a theoretical method by means of model studies. Five models were made, a five‐storey plane frame rigidly fixed at its feet, two models of the same frame but now in association with a linearly elastic isotropic foundation, Adiprene L‐100 and L‐167, which had E‐values of 4.4 and 39.7 N/mm2, respectively. A five‐storey, asymmetric space frame was also made, with fixed feet and with a foundation of modulus 4.4 N/mm2. In this first stage, resonance tests were made, using the MAMA,2 to obtain frequencies, mode shapes and damping values. Corresponding frequencies and mode shapes were calculated using a finite element idealization.

The second stage uses a proven computer program for a parametric study to obtain a large number of results, which give a good indication of the effect of different foundation conditions on this type of structure. Some calculations are also made in which the foundation is represented by equivalent springs8 instead of finite elements.

In the third stage dynamic response was considered. A shaking table was built on which the models were subjected to a number of actual earthquake records, which had been suitably scaled and recorded on magnetic tape. The structural response was measured, and compared with calculated values obtained by step‐by‐step methods and, alternatively, the modal addition approach. For the asymmetric space‐frame, particular attention was paid to the torsional effect.