bluuebunny/crossref_metadata_2025_split huggingface dataset:
Flame retardance of insolubilized silica inside of wood material
Authors: Šimkovic Ivan , Martvon̆ová Helena , Maníková Desana , Grexa Ondrej 
Published: June 2005

AbstractBeech wood boards were studied with a cone calorimeter. As the specific density of these materials is greater, the total amounts of CO and CO2 produced were bigger than values measured on spruce specimens. Also, the shape of the heat release rate (HRR) curve was different as its second peak was bigger than the one observed on spruce wood. It was shown that impregnation of wood with water solutions of H3BO3 resulted in decreased HRR values with increasing acid concentrations. Mass loss and CO and CO2 production rates also decrease in the same way. Impregnation with water‐soluble NaOH‐silica resulted in improved data, when compared to untreated specimens, but were not better than those obtained with H3BO3. Simple mixing of both fire retardants gave no improvement, nor was the two‐step impregnation with drying effective after the first step. When the second step‐treatment with acid was followed without drying after impregnation with NaOH‐silica in the first step, then improvement was evident. This is explained by precipitation of the silica content inside the material when the NaOH was neutralized with H3BO3, which could penetrate inside when the material was not dried before the second step. The improvement resulted in lower smoke production and longer times to ignition. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 97: 1948–1952, 2005
Crystallization and melting behavior of trans‐1,2‐syndiotactic polypentadiene
Authors: Bertini Fabio , Canetti Maurizio , Ricci Giovanni 
Published: June 2005

Abstract(E)‐1,3‐pentadiene was polymerized at −30°C by using the catalyst system CoCl2(PiPrPh2)2–MAO. A trans‐1,2‐syndiotactic structure was attributed to the semicrystalline polymer obtained on the basis of the characterization carried out by FTIR, NMR, and WAXD techniques. The thermal behavior of the polypentadiene was investigated by thermogravimetry and differential scanning calorimetry. Isothermal melt crystallization kinetics were analyzed according to the Avrami equation. Nonisothermal crystallization kinetics were elaborated by using Ziabicki and Avrami methods modified by Jeziorny. The equilibrium melting temperature was calculated. The thermal behavior of trans‐1,2‐syndiotactic polypentadiene was compared with that of 1,2‐syndiotactic polybutadiene. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 97: 1970–1976, 2005
Scholarly work and the shaping of digital access
Authors: Palmer Carole L. 
Published: June 2005

AbstractIn the cycle of scholarly communication, scholars play the role of both consumer and contributor of intellectual works within the stores of recorded knowledge. In the digital environment scholars are seeking and using information in new ways and generating new types of scholarly products, many of which are specialized resources for access to research information. These practices have important implications for the collection and organization of digital access resources. Drawing on a series of qualitative studies investigating the information work of scientists and humanities scholars, specific information seeking activities influenced by the Internet and two general modes of information access evident in research practice are identified in this article. These conceptual modes of access are examined in relation to the digital access resources currently being developed by researchers in the humanities and neuroscience. Scholars' modes of access and their “working” and “implicit” assemblages of information represent what researchers actually do when gathering and working with research materials and therefore provide a useful framework for the collection and organization of access resources in research libraries.
Expansion of human embryonic stem cells in defined serum‐free medium devoid of animal‐derived products
Authors: Li Yan , Powell Sandra , Brunette Elisa , Lebkowski Jane , Mandalam Ramkumar 
Published: June 2005

AbstractHuman embryonic stem cells (hESCs) can serve as an unlimited cell source for cellular transplantation and tissue engineering due to their prolonged proliferation capacity and their unique ability to differentiate into derivatives of all three‐germ layers. In order to reliably and safely produce hESCs, use of reagents that are defined, qualified, and preferably derived from a non‐animal source is desirable. Traditionally, mouse embryonic fibroblasts (MEFs) have been used as feeder cells to culture undifferentiated hESCs. We recently reported a scalable feeder‐free culture system using medium conditioned by MEFs. The base and conditioned medium (CM) still contain unknown bovine and murine‐derived components, respectively. In this study, we report the development of a hESC culture system that utilizes a commercially available serum‐free medium (SFM) containing human sourced and recombinant proteins supplemented with recombinant growth factor(s) and does not require conditioning with feeder cells. In this system, which employs human laminin coated surface and high concentration of hbFGF, the hESCs maintained undifferentiated hESC morphology and had a twofold increase in expansion compared to hESCs grown in MEF‐CM. The hESCs also expressed surface markers SSEA‐4 and Tra‐1‐60 and maintained expression of hTERT, Oct4, and Cripto genes similar to cells cultured in MEF‐CM. In addition, hESCs maintained in this culture system were able to differentiate in vitro and in vivo into cells of all three‐germ layers. The cells maintained a normal karyotype after prolonged culture in SFM. In summary, this study demonstrates that the hESCs cultured in defined non‐conditioned serum‐free medium (NC‐SFM) supplemented with growth factor(s) retain the characteristics and replicative potential of hESCs. The use of defined culture system with NC‐SFM on human laminin simplifies scale‐up and allows for reproducible generation of hESCs under defined and controlled conditions that would serve as a starting material for production of hESC derived cells for therapeutic use. © 2005 Wiley Periodicals, Inc.
Is death row obsolete? A decade of mainstreaming death‐sentenced inmates in Missouri
Authors: Cunningham Mark D. , Reidy Thomas J. , Sorensen Jon R. 
Published: June 2005

AbstractDeath‐sentenced inmates in Missouri have been integrated or “mainstreamed” into the general population of the Potosi Correctional Center since 1991. By comparing the rate of violent misconduct among these mainstreamed death‐sentenced inmates with that of the life‐without‐parole and parole eligible inmates under fully integrated conditions of confinement, this study provides the first empirical (statistical) evaluation of this innovative alternative to segregated death row confinement. The mainstreamed death‐sentenced inmates committed no inmate or staff homicides, or attempted homicides. Comparison of their rates of institutional violence revealed frequencies that were similar to those of life‐without‐parole inmates, and well below those of fellow inmates who were sentenced to parole eligible terms. These findings cast serious doubt on the security‐driven assumptions that have typified the segregation of death‐sentenced inmates and have dictated highly restrictive confinement policies for this group. A conclusion that death‐sentenced inmates can be safely integrated into a general prison population has significant implications for allocation of scarce fiscal resources and correctional staff, as well as for inmate mental health, particularly given the extended tenure that death‐sentenced inmates typically serve between sentencing and relief/execution. Copyright © 2005 John Wiley & Sons, Ltd.
Debtor education, financial literacy, and pending bankruptcy legislation
Authors: Wiener Richard L. , Baron‐Donovan Corinne , Gross Karen , Block‐Lieb Susan 
Published: June 2005

AbstractThis paper reports on an evaluation of a financial education‐training program for residents of New York who had filed for bankruptcy. Over 400 individuals divided into three groups (trained debtors, untrained debtors, and non‐debtors) completed identical questionnaires approximately three months apart. Trained debtors took the pretest before training and the post‐test after training. Results revealed that trained debtors' financial knowledge increased after training compared with untrained and non‐debtors. Trained debtors showed more negative attitudes towards unnecessary spending compared with the other two groups and reported less intention to buy than non‐debtors reported. Self‐reported behaviors showed significant changes in the desired direction for trained debtors' use of credit cards (i.e. number owned, purchases, and balance amount), paying bills, budgeting, and borrowing from predatory lenders. Implications for pending legislation are discussed. Copyright © 2005 John Wiley & Sons, Ltd.
Mechanism of Hierarchical Porosity Development in MFI Zeolites by Desilication: The Role of Aluminium as a Pore‐Directing Agent
Authors: Groen Johan C. , Peffer Louk A. A. , Moulijn Jacob A. , Pérez‐Ramírez Javier 
Published: June 2005

AbstractThe role of the concentration and the nature of aluminium in the creation of hierarchical porosity in both commercial and synthesized MFI zeolites have been investigated through controlled mesoporosity development by desilication in alkaline medium. Framework aluminium controls the process of framework silicon extraction and makes desilication selective towards intracrystalline mesopore formation. An optimal molar Si/Al ratio in the range 25–50 has been identified; this leads to an optimal mesoporosity centred around 10 nm and mesopore surface areas of up to 235 m2 g−1 while preserving the intrinsic crystalline and acidic properties. At lower framework Si/Al ratios the relatively high Al content inhibits Si extraction and hardly any mesopores are created, while in highly siliceous ZSM‐5 unselective extraction of framework Si induces formation of large pores. The existence of framework Al sites in different T positions that are more or less susceptible to the alkaline treatment, and the occurrence of re‐alumination, are tentative explanations for the remarkable behaviour of Al in the desilication process. The presence of substantial extra framework Al, obtained by steam treatment, inhibits Si extraction and related mesopore formation; this is attributed to re‐alumination of the extraframework Al species during the alkaline treatment. Removal of extraframework Al species by mild oxalic acid treatment restores susceptibility to desilication, which is accompanied by formation of larger mesopores due to the enhanced Si/Al ratio in the acid‐treated zeolite.
Mg1‐xRhB — A New Boridometallide with 2D Polyanion.
Authors: Alekseeva A. M. , Abakumov A. M. , Leithe‐Jasper A. , Schnelle W. , Prots Yu. , Hadermann J. , Van Tendeloo G. , Antipov E. V. , Grin Yu. 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Electrical Conduction Properties of Sr‐Doped LaPO4 and CePO4 under Oxidizing and Reducing Conditions.
Authors: Kitamura Naoto , Amezawa Koji , Tomii Yoichi , Hanada Teiichi , Yamamoto Naoichi , Omata Takahisa , Otsuka‐Yao‐Matsuo Shinya 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
NH4Cd(H2O)2 (BP2O8)×0.72H2O: A New Borophosphate with Abnormal Structure Changes Caused by Hydrogen Interactions.
Authors: Ge Ming‐Hui , Liu Wei , Chen Hao‐Hong , Li Man‐Rong , Yang Xin‐Xin , Zhao Jing‐Tai 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Synthesis of Disordered Pyrochlores, Ln2Ti2O7 (Ln: Y, Gd and Dy), by Mechanical Milling of Constituent Oxides.
Authors: Fuentes Antonio F. , Boulahya Khalid , Maczka Miroslaw , Hanuza Jerzy , Amador Ulises 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Addition of Amines to the Triple Bond in α,α,α‐Trichloromethylpropargyl Mesylate: Synthesis of α,α‐Dichloromethylenaminones and Preparation of 2‐Phenyl‐4‐dichloromethylquinolines.
Authors: Si Yu‐Gui , Guo Song‐Po , Wang Wan‐Jun , Jiang Biao 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
A Simple Procedure for the Synthesis of γ‐Hydroxy‐α,β‐(E)‐alkenoic Esters: Formal Synthesis of (+)‐Macrosphelides A and B.
Authors: Rao K. Srinivasa , Mukkanti K. , Reddy D. Srinivasa , Pal Manojit , Iqbal Javed 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Ligand Effects in Gold‐ and Platinum‐Catalyzed Cyclization of Enynes: Chiral Gold Complexes for Enantioselective Alkoxycyclization.
Authors: Munoz M. Paz , Adrio Javier , Carretero Juan Carlos , Echavarren Antonio M. 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Indium‐Mediated Barbier‐Type Allylation of Aldehydes as a Convenient Method for the Highly Enantioselective Synthesis of Homoallylic Alcohols.
Authors: Hirayama Lacie C. , Gamsey Soya , Knueppel Daniel , Steiner Derek , DeLaTorre Kelly , Singaram Bakthan 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Functionalization of α,β‐Unsaturated Esters and Ketones: A Facile and Highly Stereoselective One‐Pot Approach to N‐Protected α,β‐Dehydroamino Acid Derivatives.
Authors: Chen Dianjun , Guo Li , Liu Junying , Kirtane Sameer , Cannon John F. , Li Guigen 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
ZnCl2‐Mediated Synthesis of Carboxylic Anhydrides Using 2‐Acyl‐4,5‐dichloropyridazin‐3(2H)‐ones.
Authors: Park Yong‐Dae , Kim Jeum‐Jong , Kim Ho‐Kyun , Cho Su‐Dong , Kang Young‐Jin , Park Ki Hun , Lee Sang‐Gyeong , Yoon Yong‐Jin 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Nickel‐Catalyzed Cross‐Coupling of Neopentyl Arenesulfonates with Methyl and Primary Alkylmagnesium Bromides.
Authors: Cho Chul‐Hee , Sun Myungchul , Seo Yong‐Seok , Kim Chul‐Bae , Park Kwangyong 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Microwave‐Assisted Suzuki Reactions for the Preparation of the Antifungal 3‐Aryl‐5‐methyl‐2,5‐dihydrofuran‐2‐ones.
Authors: Mathews Christopher J. , Taylor John , Tyte Melloney J. , Worthington Paul A. 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Synthesis of 2,3,5,6‐Tetrahydro‐3H‐imidazo[2,1‐b][1,3,5]benzotriazepines and Their Oxidative Ring Contraction into 1‐(4,5‐Dihydro‐1H‐imidazol‐2‐yl)‐1H‐benzimidazoles.
Authors: Saczewski Franciszek , Kobierska Ewa , Tyacke Robin J. , Hudson Alan L. , Nutt David J. , Gdaniec Maria 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Synthesis and Antimicrobial Activity of Some (Nitro)furfurylidene‐Containing Hexahydroindazoles.
Authors: Golikov A. G. , Raykova S. V. , Bugaev A. A. , Kriven'ko A. P. , Shub G. M. 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Novel Cyclized Pifithrin‐α p53 Inactivators: Synthesis and Biological Studies.
Authors: Pietrancosta Nicolas , Maina Flavio , Dono Rosanna , Moumen Anice , Garino Cedrik , Laras Younes , Burlet Stephane , Quelever Gilles , Kraus Jean‐Louis 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Novel Synthesis of 4‐Halo‐3‐hydroxy‐2‐pyrone: One‐Pot Rearrangement—Cyclization Reaction by Magnesium Halide.
Authors: Komiyama Takuzo , Takaguchi Yutaka , Gubaidullin Aider T. , Mamedov Vakhid A. , Litvinov Igor A. , Tsuboi Sadao 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Further Studies on Ethenyl and Ethynyl‐4‐phenylamino‐3‐quinolinecarbonitriles: Identification of a Subnanomolar Src Kinase Inhibitor.
Authors: Barrios Sosa Ana Carolina , Boschelli Diane H. , Wu Biqi , Wang Yan , Golas Jennifer M. 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Aminocyanopyridine Inhibitors of Mitogen Activated Protein Kinase‐Activated Protein Kinase 2 (MK‐2).
Authors: Anderson David R. , Hegde Shridhar , Reinhard Emily , Gomez Leslie , Vernier William F. , Lee Len , Liu Shuang , Sambandam Aruna , Snider Patricia A. , Masih Liaqat 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
The Pyridine Analogue (II) of Diamino‐β‐isoindigo and Dinuclear Metallomacroheterocycles (III) on Its Basis
Authors: Kulikov M. A. , Berezina G. R. , Neustroeva N. R. , Borob'ev Yu. G. 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Asymmetric Palladium‐Catalyzed Annulation of Benzene‐1,2‐diol and Racemic Secondary Propargylic Carbonates Bearing Two Different Substituents.
Authors: Dominczak Norbert , Damez Celine , Rhers Bouchra , Labrosse Jean‐Robert , Lhoste Paul , Kryczka Boguslaw , Sinou Denis 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Pyrazolo[1,5‐a]pyrimidin‐7‐yl Phenyl Amides as Novel Antiproliferative Agents: Parallel Synthesis for Lead Optimization of Amide Region.
Authors: Gopalsamy Ariamala , Yang Hui , Ellingboe John W. , Tsou Hwei‐Ru , Zhang Nan , Honores Erick , Powell Dennis , Miranda Miriam , McGinnis John P. , Rabindran Sridhar K. 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Reaction Between Isocyanides and Dialkyl Acetylenedicarboxylates in the Presence of 4,5‐Diphenyl‐1,3‐dihydro‐2H‐imidazol‐2‐one. One‐Pot Synthesis of 5H‐Imidazo[2,1‐b][1,3]oxazine Derivatives.
Authors: Adib Mehdi , Ghanbary Khadijeh , Mostofi Manizheh , Bijanzadeh Hamid Reza 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
1,5‐Benzodiazepines. Part 14. Synthesis of New Substituted 9H‐Bis‐[1,2,4]triazolo[4,3‐a:3′,4′.d][1,5]benzodiazepines and Related Compounds Endowed with in vitro Cytotoxic Properties.
Authors: Di Braccio Mario , Grossi Giancarlo , Ceruti Maurizio , Rocco Flavio , Loddo Roberta , Sanna Giuseppina , Busonera Bernardetta , Murreddu Marta , Marongiu Maria Elena 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Macrolides with Promotive Activity of Monocyte to Macrophage Differentiation.
Authors: Yoshida Kiminari , Sunazuka Toshiaki , Nagai Kenichiro , Sugawara Akihiro , Cho Achim , Nagamitsu Tohru , Harigaya Yoshihiro , Otoguro Kazuhiko , Akagawa Kiyoko S. , Omura Satoshi 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
3,4‐Disubstituted Azetidinones as Selective Inhibitors of the Cysteine Protease Cathepsin K. Exploring P3 Elements for Potency and Selectivity.
Authors: Setti Eduardo L. , Davis Dana , Janc James W. , Jeffery Douglas A. , Cheung Harry , Yu Walter 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
First Isolation of a Novel‐Air Stable Mercury Tellurolate and the Preparation of CdS and CdSe Nanoparticles from the Respective Cadmium Chalcogenolates
Authors: Kandasamy Karuppasamy , Singh Harkesh B. , Kulshreshtha Shailendra K. , Wolmershaeuser Gotthelf 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Instant Ligand Libraries of Monodentate Phosphoramidites. Asymmetric Hydrogenation Made Easy
Authors: van den Berg Michel , Pena Diego , Minnaard Adriaan J. , Feringa Ben L. , Lefort Laurent , Boogers Jeroen A. F. , de Vries Andre H. M. , de Vries Johannes G. 
Published: June 2005

AbstractFor Abstract see ChemInform Abstract in Full Text.
Sperm cryopreservation before cancer chemotherapy helps in the emotional battle against cancer
Authors: Saito Kazuo , Suzuki Kotaro , Iwasaki Akira , Yumura Yasushi , Kubota Yoshinobu 
Published: June 2005

AbstractBACKGROUNDSperm cryopreservation before cancer chemotherapy is available for young patients with cancer. However, few patients bank their sperm. The authors evaluated by questionnaire the psychological impact of sperm cryopreservation.METHODSThe authors cryopreserved the sperm of 111 patients with cancer for free at the Yokohama City University (Yokohama, Japan). For the current study, questionnaires were mailed to 66 patients whose sperm had been cryopreserved. Fifty‐one patients (77.3%) with testicular carcinomas (n = 24), leukemia or malignant lymphoma (n = 19), or other cancers (n = 8) answered the questionnaire. The average age at collection and the period of sperm cryopreservation were 30.1 ± 6.0 (mean ± standard deviation) and 3.3 ± 2.2 years, respectively.RESULTSMany patients were informed of the deleterious effects of cancer chemotherapy and worried about infertility in the future. However, only half of the patients banked their sperm on their own initiative. Other patients followed their physician's instruction. Eighty percent of patients replied that sperm cryopreservation helped in the battle against cancer.Sperm banking especially was found to encourage every patient who banked sperm on their own initiative. After cancer chemotherapy, 70% of patients wanted to have a child. However, 60% of patients were worried about infertility in spite of having their sperm cryopreserved. No patients wanted to use cryopreserved sperm for fathering children if their spermatogenesis was restored. Sperm cryopreservation invigorated many patients with cancer after cancer treatments. The majority of patients recommended sperm cryopreservation to other cancer patients.CONCLUSIONSSperm cryopreservation encouraged young patients with cancer during and after cancer treatment. It should be recommended for all young patients with cancer. However, sperm cryopreservation did not eliminate their fear of infertility. Cancer 2005. © 2005 American Cancer Society.
S100β as a predictor of brain metastases
Authors: Vogelbaum Michael A. , Masaryk Thomas , Mazzone Peter , Mekhail Tarek , Fazio Vincent , McCartney Sally , Marchi Nicola , Kanner Andrew , Janigro Damir 
Published: June 2005

AbstractBACKGROUNDThe identification of brain metastases in patients with malignant disease has important implications for determining their treatment and prognosis. Asymptomatic metastatic brain tumors may be detected by surveillance imaging techniques, but longitudinal follow‐up of patients who are at risk is sporadic primarily due to cost. Because the development of brain metastases is accompanied and detected by extravasation of contrast agents across the blood‐brain barrier (BBB), the authors hypothesized that peripheral analysis of the BBB indicator S100β may be useful as a screening tool for brain metastases in patients who have no neurologic symptoms.METHODSThirty‐eight patients were enrolled for the current study. All patients had newly diagnosed lung carcinoma and had no neurologic symptoms or known history of brain metastasis. Patients underwent an initial magnetic resonance imaging (MRI) scans and S100β blood tests. S100β tests were repeated in a subset of patients at the time of routine follow‐up MRI scans.RESULTSBased on imaging studies and on serum S100β analyses, the patients were divided in 3 categories: 1) patients with normal S100β levels (0.08 ± 0.02 μg/L;n= 22 patients) and normal MRI scans; 2) patients with elevated S100β levels (0.5 ± 0.28 μg/L;n= 8 patients) and pronounced microvascular changes on MRI scans but with no metastases; and 3) patients with elevated S100β levels (0.28 ± 0.19 μg/L;n= 7 patients) and metastatic brain tumor(s) on MRI scans.CONCLUSIONSBecause of the significant overlap in S100β levels between patients with cerebral microvascular diseases and patients with brain metastases, the authors concluded that the serum S100β level may be used as a surveillance tool to predict or detect brain metastases if appropriate prescreening radiologic tests are obtained and if patients who are candidates for false‐positive results are identified and excluded. Cancer 2005. © 2005 American Cancer Society.