bluuebunny/crossref_metadata_2025_split huggingface dataset:
Different Effects of Fluoride Surface Modification on the Photocatalytic Oxidation of Phenol in Anatase and Rutile TiO2 Suspensions
Authors: Lv K. , Lu C. S. 
Published: August 2008

AbstractThe effect of calcination temperature on the photocatalytic degradation of phenol with aqueous suspensions of synthetic anatase and rutile TiO2 under UV light irradiation (λ > 320 nm), was studied in the absence and presence of NaF. The presence of fluoride accelerates the degradation of phenol in anatase TiO2, with this positive effect increasing at first, before declining with increasing calcined temperature. A negative effect of fluoride was observed for all the rutile TiO2 suspensions. The selectivity of catechol increased in the presence of fluoride in both anatase and rutile TiO2 suspensions.
Modeling of Electrochemistry and Heat/Mass Transfer in a Tubular Solid Oxide Steam Electrolyzer for Hydrogen Production
Authors: Ni M. , Leung M. K. H. , Leung D. Y. C. 
Published: August 2008

AbstractA finite‐volume based mathematical model has been developed for modeling hydrogen production by a tubular cell of solid oxide steam electrolyzer (SOSE), taking into account the electrochemical reactions and heat/mass transfer effects. The model is composed of three systems of nonlinear equations that govern the electric current density, energy balance in the solid SOSE cell, and energy balance in the flow of steam and hydrogen. The simulated hydrogen production rate proportional to the applied potential agreed well with the experimental measurements published in the literature. The intermediate modeling results indicated that the activation effect dominate the overall cell overpotential due to low exchange current density through the SOSE cell electrodes. Thus, higher electrode activity was identified as an important factor for enhancing cell performance. Parametric modeling analyses were conducted to gain better understanding of the SOSE characteristics. It was found that low‐temperature gas intake would cause a high temperature gradient in the tubular cell material at the inlet, possibly leading to a thermal expansion problem. The risk could be reduced by increasing the gas inlet temperature. It was also found that energy‐efficient SOSE hydrogen production can be achieved by reducing the hydrogen content in the steam intake and regulating the steam intake flow rate to an optimum that minimizes the overall electrical and thermal requirements. More parametric modeling results are discussed in this paper. The tubular SOSE cell model developed in this study can easily be expanded to accomplish tubular SOSE stack analysis for comprehensive system design optimization.
In Vitro Anticancer Activity and Biologically Relevant Metabolization of Organometallic Ruthenium Complexes with Carbohydrate‐Based Ligands
Authors: Berger Isabella , Hanif Muhammad , Nazarov Alexey A. , Hartinger Christian G. , John Roland O. , Kuznetsov Maxim L. , Groessl Michael , Schmitt Frederic , Zava Olivier , Biba Florian , Arion Vladimir B. , Galanski Mathea Sophia , Jakupec Michael A. , Juillerat‐Jeanneret Lucienne , Dyson Paul J. , Keppler Bernhard K. 
Published: August 2008

AbstractThe synthesis and in vitro anticancer activity of dihalogenido(η6‐p‐cymene)(3,5,6‐bicyclophosphite‐α‐D‐glucofuranoside)ruthenium(II) complexes are described. The compounds were characterized by NMR spectroscopy and ESI mass spectrometry, and the molecular structures of dichlorido‐, dibromido‐ and diiodido(η6‐p‐cymene)(3,5,6‐bicyclophosphite‐1,2‐O‐isopropylidene‐α‐D‐glucofuranoside)ruthenium(II) were determined by X‐ray diffraction analysis. The complexes were shown to undergo aquation of the first halido ligand in aqueous solution, followed by hydrolysis of a PO bond of the phosphite ligand, and finally formation of dinuclear species. The hydrolysis mechanism was confirmed by DFT calculations. The aquation of the complexes was markedly suppressed in 100 mM NaCl solution, and notably only very slow hydrolysis of the PO bond was observed. The complexes showed affinity towards albumin and transferrin and monoadduct formation with 9‐ethylguanine. In vitro studies revealed that the 3,5,6‐bicyclophosphite‐1,2‐O‐cyclohexylidene‐α‐D‐glucofuranoside complex is the most cytotoxic compound in human cancer cell lines (IC50 values from 30 to 300 μM depending on the cell line).
ChemInform Abstract: Electronic Structure and Chemical Bonding within MgB2 and Related Borides from First Principles
Authors: Matar Samir F. 
Published: August 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Crystal Structure Refinements of Ge(tP12), Physical Properties and Pressure‐Induced Phase Transformation Ge(tP12)↔Ge(tI4).
Authors: Wosylus Aron , Prots Yurii , Schnelle Walter , Hanfland Michael , Schwarz Ulrich 
Published: August 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Structures and Thermal Properties of Silver(I) (Poly)chalcogenide Halide Solid Solutions Ag10Te4‐(q,p)Q(q,p)Br3 with Q: S, Se.
Authors: Nilges Tom , Bawohl Melanie 
Published: August 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis, Crystal Structure and X‐Ray Excited Luminescent Properties of LuBa3B9O18.
Authors: Duan Cheng‐Jun , Li Wei‐Feng , Yuan Jun‐Lin , Zhao Jing‐Tai 
Published: August 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Impregnation Method for the Synthesis of Li—N—H Systems.
Authors: Hao Ting , Matsuo Motoaki , Nakamori Yuko , Orimo Shin‐ichi 
Published: August 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Incorporating a Transition Metal Complex into Polymeric Iodoplumbate: Structure Characterization, Properties and Theoretical Study of a Unprecedented Hybrid Semiconductor: {[Cu(en)2][Pb2I6]}n.
Authors: Li Hao‐Hong , Sun Ling‐Guo , Chen Zhi‐Rong , Wang Yun‐Jie , Li Jun‐Qian 
Published: August 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis, Structure and Properties of the (Bi0.5Sr0.5) (Co0.5Ru0.5)O3 Perovskite.
Authors: Ortega‐San Martin Luis , Rodgers Jennifer A. , Attfield J. Paul 
Published: August 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Tin‐Free Generation of Alkyl Radicals from Alkyl 4‐Pentynyl Sulfides via Homolytic Substitution at the Sulfur Atom.
Authors: Bencivenni Giorgio , Lanza Tommaso , Leardini Rino , Minozzi Matteo , Nanni Daniele , Spagnolo Piero , Zanardi Giuseppe 
Published: August 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
The association between prenatal exposure to cigarettes and cortisol reactivity and regulation in 7‐month‐old infants
Authors: Schuetze Pamela , Lopez Francisco A. , Granger Douglas A. , Eiden Rina D. 
Published: August 2008

AbstractWe examined the association between prenatal exposure to cigarettes and adrenocortical responses to stress in 7‐month‐old infants. Cortisol levels were assessed twice prior to and twice following affect‐eliciting procedures in 111 (59 exposed and 52 nonexposed) infants. Cortisol reactivity was defined as the difference between the peak poststressor cortisol level and the pretask cortisol level. Higher values indicated higher cortisol reactivity. Exposed infants had higher peak cortisol reactivity than nonexposed infants. There were no differences in pretask cortisol levels. Maternal hostility mediated the association between cigarette exposure and peak cortisol reactivity. Furthermore, infant gender moderated this association such that exposed boys had significantly higher peak cortisol reactivity than nonexposed infants or exposed girls. These findings provide additional evidence that prenatal cigarette exposure is associated with dysregulation during infancy and that early adverse, nonsocial experiences may have relatively long‐lasting effects on cortisol reactivity in infants. © 2008 Wiley Periodicals, Inc. Dev Psychobiol 50: 819–834, 2008
Reactivity of Yttrium Quinoline–Imine–Phenoxide Complexes Towards Inter‐ and Intramolecular Alkyl Nucleophilic Attacks
Authors: Paolucci Gino , Bortoluzzi Marco , Bertolasi Valerio 
Published: August 2008

AbstractYttrium(III) chloride complexes [YCl2(NNOH)] (1H) and [YCl2(NNOMe)] (1Me) {NNOH = 2‐tert‐butyl‐6‐(quinolin‐8‐yliminomethyl)phenoxide; NNOMe = 2‐tert‐butyl‐6‐[(2‐methylquinolin‐8‐ylimino)methyl]phenoxide} were synthesized by treating a thf solution of YCl3 at room temperature with the NNOH‐H and NNOMe‐H ligands {NNOH‐H = 2‐tert‐butyl‐6‐(quinolin‐8‐yliminomethyl)phenol; NNOMe‐H = 2‐tert‐butyl‐6‐[(2‐methylquinolin‐8‐ylimino)methyl]phenol}, which were previously deprotonated with potassium tert‐butoxide or thallium ethoxide. Surprisingly, reaction of 1H with the Grignard reagent MeMgBr to prepare the corresponding dialkyl derivative led to the formation of the tetranuclear magnesium dimer [Mg2BrCl{NN(Me)OH}(thf)]2 {NN(Me)OH =2‐tert‐butyl‐6‐[1‐(quinolin‐8‐ylamido)ethyl]phenoxide} (2), whose structure was determined by single‐crystal X‐ray diffraction. By reacting the neutral ligand NNOH‐H withY(CH2SiMe3)3·2thf in toluene at low temperature the alkyl complex [Y(CH2SiMe3){NN(CH2SiMe3)O}(thf)] {NN(CH2SiMe3)O = 2‐tert‐butyl‐6‐[1‐(quinolin‐8‐ylamido)‐2‐trimethylsilanylethyl]phenoxide} (3) was isolated. The supposed reaction mechanism leading to the formation of 3 was simulated by using the PM6 Hamiltonian. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
Sugar‐Derived Bifunctional Thiourea Organocatalyzed Asymmetric Michael Addition of Acetylacetone to Nitroolefins
Authors: Gao Peng , Wang Chungui , Wu Yang , Zhou Zhenghong , Tang Chuchi 
Published: August 2008

AbstractA bifunctional chiral thiourea organocatalyst bearing a glycosyl scaffold and a tertiary amino group proved to be an effective organocatalyst for the asymmetric Michael addition of acetylacetone to nitroolefins. The corresponding adducts were obtained in good to excellent yields with excellent enantioselectivities (up to 96 % ee). (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
Productive innovations in hospitals: an empirical research on the relation between technology and productivity in the Dutch hospital industry
Authors: Blank Jos L. T. , Hulst Bart L. Van 
Published: August 2008

AbstractThis paper studies the relationship between technology and productivity in Dutch hospitals. In most studies technical change is measured by a proxy, namely a time trend. In practice however, innovations slowly spread over all hospitals and so different hospitals are operating under different technologies at the same point in time. In this study we explicitly inventory specific and well‐known innovations in the Dutch hospital industry in the past ten years. These innovations are aggregated into a limited number of homogenous innovation clusters, which are measured by a set of technology index numbers. The index numbers are included in the cost function specification and estimation. The results indicate that technical change is non‐neutral and output‐ biased and that some technologies affect cost in beneficial ways. Copyright © 2008 John Wiley & Sons, Ltd.
Learning, forgetting, and hospital quality: an empirical analysis of cardiac procedures in Maryland and Arizona
Authors: Sfekas Andrew 
Published: August 2008

AbstractThis paper sets out an empirical model of learning with forgetting and uses it to estimate how much hospital quality improves with experience. The size of the learning effect and the depreciation rate are estimated for two cardiac procedures in Maryland and Arizona. Models are estimated using patient survival as the outcome of interest. The results show that learning does not appear to be a factor in hospital quality for either procedure or for surgery generally. From a policy standpoint, based on these results, regulations in Maryland that seek to concentrate these two procedures among a small number of providers could not be justified on the grounds that higher volume would increase the quality of care. Copyright © 2008 John Wiley & Sons, Ltd.
Behavioral forecasts do not improve the prediction of future behavior: a prospective study of self‐injury
Authors: Janis Irene Belle , Nock Matthew K. 
Published: August 2008

AbstractClinicians are routinely encouraged to use multimodal assessments incorporating information from multiple sources when determining an individual's risk of dangerous or self‐injurious behavior; however, some sources of information may not improve prediction models and so should not be relied on in such assessments. The authors examined whether individuals' prediction of their own future behavior improves prediction over using history of self‐injurious thoughts and behaviors (SITB) alone. Sixty‐four adolescents with a history of SITB were interviewed regarding their past year history of SITB, asked about the likelihood that they would engage in future SITB, and followed over a 6‐month period. Individuals' forecasts of their future behavior were related to subsequent SITB, but did not improve prediction beyond the use of SITB history. In contrast, history of SITB improved prediction of subsequent SITB beyond individuals' behavioral forecasts. Clinicians should rely more on past history of a behavior than individuals' forecasts of future behavior in predicting SITB. © 2008 Wiley Periodicals, Inc. J Clin Psychol 64:1–11, 2008.
Mesenchymal stem cells effectively reduce surgically induced stenosis in rat carotids
Authors: Forte Amalia , Finicelli Mauro , Mattia Monica , Berrino Liberato , Rossi Francesco , De Feo Marisa , Cotrufo Maurizio , Cipollaro Marilena , Cascino Antonino , Galderisi Umberto 
Published: August 2008

AbstractRestenosis following vascular injury remains a pressing clinical problem. Mesenchymal stem cells (MSCs) promise as a main actor of cell‐based therapeutic strategies. The possible therapeutic role of MSCs in vascular stenosis in vivo has been poorly investigated so far. We tested the effectiveness of allogenic bone marrow‐derived MSCs in reduction of stenosis in a model of rat carotid arteriotomy. MSCs were expanded in vitro retaining their proliferative and differentiation potentiality. MSCs were able to differentiate into adipocyte and osteocyte mesenchymal lineage cells, retained specific antigens CD73, CD90, and CD105, expressed smooth muscle alpha‐actin, were mainly in proliferative phase of cell cycle and showed limited senescence. WKY rats were submitted to carotid arteriotomy and to venous administration with 5 × 106 MSCs. MSCs in vivo homed in injured carotids since 3 days after arteriotomy but not in contralateral uninjured carotids. Lumen area in MSC‐treated carotids was 36% greater than in control arteries (P = 0.016) and inward remodeling was limited in MSC‐treated carotids (P = 0.030) 30 days after arteriotomy. MSC treatment affected the expression level of inflammation‐related genes, inducing a decrease of IL‐1β and Mcp‐1 and an increase of TGF‐β in injured carotids at 3 and 7 days after arteriotomy (P < 0.05). Taken together, these results indicate that allogenic MSC administration limits stenosis in injured rat carotids and plays a local immunomodulatory action. J. Cell. Physiol. 217: 789–799, 2008. © 2008 Wiley‐Liss, Inc.
The University of Michigan Specialist–Hospitalist Allied Research Program: Jumpstarting hospital medicine research
Authors: Flanders Scott A. , Kaufman Samuel R. , Nallamothu Brahmajee K. , Saint Sanjay 
Published: August 2008

AbstractBACKGROUND:Clinical research has developed slowly in most academic hospitalist programs, possibly because of a failure to recognize the important role of specialists in the diagnosis and management of complex medical patients as well as their expertise in clinical research. Ideally, a successful hospital‐based clinical research program will need to partner hospitalists with specialists.PURPOSE:The University of Michigan's Specialist–Hospitalist Allied Research Program (SHARP) was designed to jumpstart hospital‐based clinical and translational research at a major academic medical center by pairing specialists and hospitalists to ask and answer novel research questions.DESCRIPTION:SHARP is codirected by a hospitalist and a subspecialist and includes key personnel such as a hospitalist investigator, a clinical research nurse, a research associate, and a clinical epidemiologist. The program is guided by an oversight committee that includes institutional research leadership. Two initial projects have already been supported. The first, a collaboration between infectious disease specialists and hospitalists, is a prospective trial of antiseptic agents and techniques to reduce false‐positive blood cultures. The second pairs geriatricians and clinical pharmacists with hospitalists to prospectively study techniques to reduce medication errors around the time of hospital discharge. Although initial pilot projects are single‐institution studies, SHARP's goal is to expand its clinical research to include multicenter investigation. Metrics to evaluate SHARP include the number of successfully completed projects, extramural grants submitted and funded, and peer‐reviewed publications.CONCLUSION:A successful hospital‐based clinical research program combines hospitalists and specialists in a collaborative environment to identify optimal strategies for delivering inpatient care. Journal of Hospital Medicine 2008;3:308–313. © 2008 Society of Hospital Medicine.
Variation in pediatric hospitalists' use of proven and unproven therapies: A study from the Pediatric Research in Inpatient Settings (PRIS) network
Authors: Landrigan Christopher P. , Conway Patrick H. , Stucky Erin R. , Chiang Vincent W. , Ottolini Mary C. 
Published: August 2008

AbstractBACKGROUND:Undesirable practice variation remains a major concern with the quality of the healthcare system. While care in pediatric hospitalist systems has been demonstrated to be efficient, neither the quality of care nor determinants of variation in pediatric hospitalist systems are well understood.OBJECTIVE:To measure variation in pediatric hospitalists' reported use of common inpatient therapies, and to test the hypothesis that variation in reported use of proven therapies is lower than variation in reported use of unproven therapies.DESIGN AND MEASUREMENTS:We conducted a survey of pediatric hospitalists in the US and Canada. Respondents reported their frequency of using 14 therapies in the management of common conditions. Each therapy was determined to be of proven or unproven effectiveness using published critical appraisals. Variation in reported use of proven and unproven therapies was compared.RESULTS:67% (213/320) of surveyed individuals participated. Little variability existed in reported use of albuterol and corticosteroids in asthma (4‐6% of respondents reported not often using them) and systemic dexamethasone in bronchiolitis (12% of respondents reported using it more than rarely). Moderate to high variation existed in reported use of all other therapies studied. Variation in reported use of proven therapies was significantly less than variation in reported use of unproven therapies (15.5 ± 12.5% vs. 44.6 ± 20.5%).CONCLUSIONS:Substantial variation exists in hospitalists' reported management of common pediatric conditions. Variation is significantly lower for strongly evidence‐based therapies. To decrease undesirable variation in care, a stronger evidence base for inpatient pediatric care must be built. Journal of Hospital Medicine 2008;3:292–298. © 2008 Society of Hospital Medicine.
Yield and flour quality of spring wheat as affected by soil tillage and animal manure
Authors: Thomsen Ingrid K , Pedersen Lene , Jørgensen Johannes R 
Published: August 2008

AbstractBACKGROUND: Yield and quality of organic bread wheat may be improved by adjusting tillage and type of manure. We tested two different tillage strategies (rotovation plus ploughing or ploughing only) before sowing spring wheat (Triticum aestivum L.) on a coarse loamy sand. The tillage strategies were combined with four nitrogen (N) rates of animal manure supplied in either slurry or liquid manure.RESULTS: Rotovation before ploughing had only a negligible influence on soil inorganic N content in the spring and on wheat biomass development. Liquid manure gave a higher protein and gluten content than slurry, probably due to its higher proportion of inorganic N. At low N rates, gluten from wheat supplied with slurry was softer than from wheat given liquid manure and responded differently to baking tests than expected from their gluten and protein content. At higher N rates, loaf volume corresponded well with the gluten and protein content.CONCLUSION: Soil tillage intensity did not have a major influence on soil N mineralisation patterns and manure N availability. Except at low N rates, the response of wheat flour to different types of animal manure is mainly determined by the amount of inorganic N supplied. Copyright © 2008 Society of Chemical Industry