bluuebunny/crossref_metadata_2025_split huggingface dataset:
Patient Satisfaction With Treatment of Breast Cancer: Does Surgeon Specialization Matter?
Authors: Waljee Jennifer F. , Hawley Sarah , Alderman Amy K. , Morrow Monica , Katz Steven J. 
Published: July 2007

Purpose Experience and practice setting vary greatly among surgeons who treat breast cancer patients. However, less is known about how these factors influence patient satisfaction with their care. Patients and Methods We surveyed all ductal carcinoma in situ patients and a 20% random sample of invasive breast cancer patients diagnosed in 2002 reported to the Detroit, MI, and Los Angeles, CA, Surveillance, Epidemiology, and End Results registries. Attending surgeons were surveyed, yielding dyad information for 64.6% of patients (n = 1,539) and 69.7% of surgeons (n = 318). Logistic regression was used to examine the associations between surgeon specialization (percentage of practice devoted to breast disease) and hospital cancer program status, with four domains of patient satisfaction: (1) the surgical decision, (2) decision-making process, (3) surgeon-patient relationship, and (4) surgeon-patient communication, adjusting for patient and surgeon demographics and disease stage. Results In this sample, 34.5% of patients were treated by surgeons who devoted less than 30% (low volume) of their practice to breast disease, 32.5% by surgeons who devoted 30% to 60% (medium volume) of their practice to breast disease, and 33.0% by surgeons who devoted more than 60% (high volume) of their practice to breast disease. Compared to patients treated by low-volume surgeons, patients treated by higher volume surgeons were more satisfied with the decision-making process (medium volume, odds ratio [OR], 1.16; 95% CI, 0.80 to 1.67; high volume: OR, 1.79; 95% CI, 1.14 to 2.80) and with the surgeon-patient relationship (medium volume: OR, 1.13; 95% CI, 0.72 to 1.76; high volume: OR, 1.98; 95% CI, 1.08 to 3.61). Treatment setting was not associated with patient satisfaction after controlling for other factors. Conclusion Surgeon specialization is correlated with patient satisfaction. Examining the processes underlying these associations can inform strategies to improve breast cancer care.
Olefin Polymerization Catalyst Derived by Activation of a Neutral Monoalkyl Titanium Complex with an Aminopyrrole Ligand Using Triisobutylaluminum and Trityl Borate
Authors: Yasumoto Takahiro , Yamagata Tsuneaki , Mashima Kazushi 
Published: July 2007

Abstract
A neutral monocyclopentadienyl titanium monobenzyl complex 3a bearing an aminopyrrole ligand can be activated by treating with Al(iBu)3 and [Ph3C][B(C6F5)4] to became a catalyst for olefin polymerization via the methine proton abstraction of Al(iBu)3 by [Ph3C][B(C6F5)4].
Thermal-swing Extraction of Cadmium(II) by Thermosensitive Polymer Gel Crosslinked with Encapsulating Hexadentate Ligand
Authors: Takeshita Kenji , Ishida Keigo , Nakano Yoshio , Matsumura Tatsuro 
Published: July 2007

Abstract
Thermal-swing extraction of CdII with a thermosensitive gel, poly(N-isopropylacrylamide) (NIPA) crosslinked with an encapsulating ligand, N,N,N′,N′-tetrakis(4-propenyloxy-2-pyridylmethyl)ethylenediamine (TPPEN), was examined. CdII was extracted in the gel swollen at 5 °C and released from the gel shrunken at 40 °C. The difference in the distribution ratios of CdII between these temperatures was more than 30 times.
Quantitative Measurements of Brønsted Acidity of Zeolites by Ammonia IRMS–TPD Method and Density Functional Calculation
Authors: Suzuki Katsuki , Sastre German , Katada Naonobu , Niwa Miki 
Published: July 2007

Abstract
Adsorption energy of ammonia (Eads) on the Brønsted acid center of several zeolites was calculated by an embedded 8T cluster calculation based on the density functional theory. The Eads’s were in good agreement with the ΔU obtained by an ammonia IRMS–TPD method.
Fabrication of Submillimeter-sized Gold Plates from Thermal Decomposition of HAuCl4 in Two-component Ionic Liquids
Authors: Kawasaki Hideya , Yonezawa Tetsu , Nishimura Kouhei , Arakawa Ryuichi 
Published: July 2007

Abstract
We first report the fabrication of submillimeter-sized Au plates (up to about 1 mm in size) through the simple thermal decomposition of HAuCl4 in two-component ionic liquids of 1-butyl-3-methylimidazolium hexafluorophosphate (C4ImPF6) and 1-octyl-3-methylimidazolium hexafluorophosphate (C8ImPF6), which were about ten times larger sizes than those from the single-component ionic liquid of the either.
Synthesis and the Phase Behavior of Liquid-crystalline Fumarates Bearing Tolane-based Mesogens
Authors: Noguchi Hiroshi , Michinobu Tsuyoshi , Shigehara Kiyotaka 
Published: July 2007

Abstract
A new synthetic route to fumarates bearing tolane-based mesogens was developed without using acidic conditions. Effect of the tolane end group as well as alkyl chain spacer length on the liquid-crystal phases and the temperature range was comprehensively investigated by differential scanning calorimetry (DSC), polarized optical microscopy (POM), and X-ray diffraction (XRD) analysis.
Control of Phase-transition Behavior and Polymerization Capability by Methyl Addition to Dialkyl Fumarates Bearing Cyanobiphenyl Mesogens
Authors: Fujii Nozomu , Michinobu Tsuyoshi , Shigehara Kiyotaka 
Published: July 2007

Abstract
Addition of methyl groups to dialkyl fumarates bearing two cyanobiphenyl mesogens dramatically changed the phase-transition behavior and polymerization capability. No mesophase appeared and radical polymerization did not proceed in the absence of the branched methyl groups, whereas well-defined liquid-crystal phases were observed in the ambient temperature range and high molecular weight polymers were obtained in the presence of the branched methyl groups. An increase in the number of the attached methyl groups decreases the liquid crystalline temperature width as well as the molecular weight of the resulting polymers.
Phase Transfer of Fluoride Ion by Phosphonioborins
Authors: Agou Tomohiro , Kobayashi Junji , Kim Youngmin , Gabbaï François P , Kawashima Takayuki 
Published: July 2007

Abstract
Two cationic triarylboranes based on phosphonioborin frameworks have been investigated. Electron-withdrawing phosphonio groups enhanced the Lewis acidity of these boranes which capture fluoride ion in aqueous media and transport it into organic phase.
Implementation and Evaluation of Brief Cognitive–Behavioural Therapy in a Mental Health Acute Assessment and Treatment Service
Authors: Green Heather J. , Frank Rowena M. , Butwell Andrew , Beck Oswald J. 
Published: July 2007

AbstractThis pilot study evaluated the addition of 1 to 6 sessions of cognitive–behavioural therapy (CBT) for patients of a mental health acute assessment and treatment team. A pre-post design for 12 months of consecutive referrals used the Health of the Nation Outcome Scale (HONOS), Depression, Anxiety, Stress Scales (DASS), and patient satisfaction. Forty-two patients who attended CBT were compared with 19 patients who were referred but did not attend therapy due to refusal, referral to another service, or loss to follow-up. With a mean of 3.2 sessions, HONOS scores improved by a mean of 1.02 SD in patients who attended CBT and 0.72 SD in nonattenders. DASS results showed a mean reduction of 0.55 SD in symptoms of depression, anxiety and stress in those who attended. Patients' overall satisfaction averaged 4.7/5. Results showed brief CBT was feasible in this setting, with high patient satisfaction and some evidence of improved patient outcomes compared with usual care.
The Transtheoretical Model and Study Skills
Authors: Grant Anthony M. , Franklin John 
Published: July 2007

AbstractThere is empirical support for the transtheoretical model (TTM) of change within the health and psychopathology-related areas, but relatively little research into its applicability in relation to academic settings. The aim of the study was to investigate whether the TTM is applicable to the adoption of improved study skills. Participants were 148 first-year university students. A 2-factor (pros and cons) study-related decisional balance measure was developed and participants completed questionaries assessing their readiness to change, self-efficacy, study strategies and decisional balance. Decisional balance pros and cons were as predicted by the TTM. Cons were higher than pros in precontemplation and pros were higher than cons in maintenance. Self-efficacy increased from contemplation through to maintenance, and students in action and maintenance showed an increase in the use of deep achieving study strategies and a decrease in the use of surface strategies. The data provides initial support for the applicability of the TTM to academic performance enhancement. The TTM may be a useful psycho-educational tool that can facilitate the adoption of improved study strategies through coaching.
Quantitative determination of hexavalent chromium in aqueous solutions by UV-Vis spectrophotometer
Authors: Fournier-Salaün Marie-Christine , Salaün Philippe 
Published: July 2007

AbstractIn the last decade, different methods have been developed for the determination of chromium(VI) concentration in water. These methods use high cost equipment or they require a long preparation time. Because of their drawbacks, this paper describes an on-line, rapid and sensitive procedure for the determination of Cr(VI) concentrations in aqueous solutions via pH and absorption measurements. Only four Cr(VI) species are considered. The effects of pH and of total amount of chromium on the Cr(VI) speciation are investigated. The molar absorptivities of four chromium species at 371 nm are determined by minimising an objective function. The knowledge of these molar absorptivities and the measurements of pH and absorption at 371 nm lead to a rapid determination of total Cr(VI) concentration. The reliability and applicability of the method were confirmed using synthetic water samples.
A new perspective on the role of CuZn superoxide dismutase (SOD1)
Authors: Mondola Paolo , Seru Rosalba , Damiano Simona , Santillo Mariarosaria 
Published: July 2007

Abstract
The CuZn superoxide dismutase (SOD1), a member of a group of isoenzymes involved in the scavenger of superoxide anions, is a dimeric carbohydrate free protein, mainly localized in the cytosol. The reactive oxygen species (ROS) are involved in many pathophysiological events correlated with mutagenesis, cancer, degenerative processes and aging. In the first part of this mini-review the well known role of SOD1 and ROS are briefly summarized. Following, a potential novel biological action that SOD1 could exert is described, based on the recent researches demonstrating the secretion of this enzyme in many cellular lines. Moreover, the role of impaired mutant SOD1 secretion, associated with cytoplasmic toxic inclusion, which occurs in familial amyotrophic lateral sclerosis (ALS), is summarized. In addition, a depolarization-dependent release of SOD1 in pituitary GH3 cells and in rat synaptosomes through a calcium and SNARE-dependent mechanism is reported.
Asymmetric Hydrosilylation of Prochiral Ketones Catalyzed by Nanocrystalline Copper(II) Oxide
Authors: Kantam M. Lakshmi , Laha Soumi , Yadav Jagjit , Likhar Pravin R. , Sreedhar B. , Choudary B. M. 
Published: July 2007

AbstractAsymmetric hydrosilylation of aryl alkyl ketones to afford chiral secondary alcohols with good yields and excellent enantioselectivity is realized by using nanocrystalline copper(II) oxide and BINAP in the presence of organosilanes as the stoichiometric reducing agents.
Asymmetric Friedel–Crafts Alkylations of Indoles with Ethyl Glyoxylate Catalyzed by (S)‐BINOL‐Titanium(IV) Complex: Direct Access to Enantiomerically Enriched 3‐Indolyl(hydroxy)acetates
Authors: Dong Hong‐Ming , Lu Hai‐Hua , Lu Liang‐Qiu , Chen Cai‐Bao , Xiao Wen‐Jing 
Published: July 2007

AbstractEnantioselective Friedel–Crafts alkylation reactions of a variety of indoles with ethyl glyoxylate, catalyzed by a chiral (S)‐BINOL‐Ti(IV) complex (10 mol %), are reported. The corresponding ethyl 3‐indolyl(hydroxy)acetates were formed in good yields and with high enantiomeric excess (up to 96 %). When methyl pyruvate or p‐chlorophenylglyoxal was used, the bisindole compound was obtained in excellent yield. A possible mechanism is proposed.
An Efficient and Practical Method for Highly Chemoselective Hydrogenation of Nitrobenzylamines to Aminobenzylamine Hydrochlorides
Authors: Cheng Chuanjie , Wang Xinyan , Xing Lixin , Liu Bo , Zhu Rui , Hu Yuefei 
Published: July 2007

AbstractAqueous hydrochloric acid proved to be a very reliable modulator for adjusting the reactivity of palladium on carbon. Thus an efficient and practical method for the highly chemoselective hydrogenation of N,N‐dialkylnitrobenzylamines to amino‐N,N‐dialkylbenzylamine hydrochlorides was established. The method features convenient performance, easy work‐up and high efficiency.
An Efficient Synthesis of Organic Carbonates using Nanocrystalline Magnesium Oxide
Authors: Kantam M. Lakshmi , Pal Ujjwal , Sreedhar B. , Choudary B. M. 
Published: July 2007

AbstractAn efficient and selective synthesis of organic carbonates using nanocrystalline magnesium oxide has been realized by the direct condensation of alcohols and diethyl carbonate. The catalyst is quantitatively recovered by simple centrifugation and can be reused for four cycles with almost consistent activity.
Gold(I)‐ and Brønsted Acid‐Catalyzed Ring‐Opening of Unactivated Vinylcyclopropanes with Sulfonamides
Authors: Shi Wen‐Jian , Liu Yanyun , Butti Pietro , Togni Antonio 
Published: July 2007

AbstractThe gold(I)‐ or Brønsted acid‐catalyzed reaction of unactivated vinylcyclopropanes (VCPs) with sulfonamides affords useful homoallylic amine derivatives. This ring‐opening reaction occurs in a highly selective manner affording in the case of α‐phenyl‐substituted VCPs products with the E‐configuration exclusively.
Retaining Catalyst Performance at High Temperature: The Use of a Tetraphosphine Ligand in the Highly Regioselective Hydroformylation of Terminal Olefins
Authors: Yan Yongjun , Zhang Xiaowei , Zhang Xumu 
Published: July 2007

AbstractA new tetraphosphine ligand has been developed and applied in the highly regioselective hydroformylation of terminal olefins. The ligand retains high performance at high temperature when compared with its bisphosphine analogue.
Efficient Whole‐Cell Biocatalytic Synthesis of N‐Acetyl‐D‐neuraminic Acid
Authors: Xu Ping , Qiu Jian Hua , Zhang Yi Nan , Chen Jing , Wang Peng George , Yan Bing , Song Jing , Xi Ri Mo , Deng Zi Xin , Ma Cui Qing 
Published: July 2007

AbstractN‐Acetyl‐D‐neuraminic acid (Neu5Ac) was efficiently synthesized from lactate and a mixture of N‐acetyl‐D‐glucosamine (GlcNAc) and N‐acetyl‐D‐mannosamine (ManNAc) by whole cells. The biotransformation utilized Escherichia coli cells (Neu5Ac aldolase), Pseudomonas stutzeri cells (lactate oxidase components), GlcNAc/ManNAc and lactate. By this process, 18.32±0.56 g/liter Neu5Ac were obtained from 65.61±2.70 g/liter lactate as an initial substrate input. Neu5Ac (98.4±0.4 % purity, 80.87±0.79 % recovery yield) was purified by anionic exchange chromatography. Our results demonstrate that the reported Neu5Ac biosynthetic process can compare favorably with natural product extraction or chemical synthesis processes.
Noels’ vs. Grubbs’ Catalysts: Evidence for One Unique Active Species for Two Different Systems!
Authors: Ahr Mathieu , Thieuleux Chloé , Copéret Christophe , Fenet Bernard , Basset Jean‐Marie 
Published: July 2007

AbstractThe catalytically active propagating species involved in the self‐metathesis of ethyl oleate obtained from the multi‐component Noels’ catalytic system {[RuCl2(p‐cymene)(PCy3)]+Me3SiCHN2} are probably the same as those of the single‐component well‐defined Grubbs’ 1st generation catalyst, [Cl2RuCHPh(PCy3)2] (1‐Ph). In the case of the Noels’ catalyst, it involves the de‐coordination of p‐cymene, and the redistribution of PCy3 ligands to generate only 5–10 % of [Cl2RuCHR(PCy3)2], where R=CH(CH2)6CH3 (1‐Oct) and R=CH(CH2)6COOEt (1‐E), while 1‐Ph can generate 100 % of these species.
Highly Regio‐ and Stereoselective Iodohydroxylation of Non‐ Heteroatom‐Substituted Allenes: An Efficient Synthesis of 4‐[3′‐Hydroxy‐2′‐iodoalk‐1′(Z)‐enyl]‐2(5H)‐furanone Derivatives
Authors: Gu Zhenhua , Deng Youqian , Shu Wei , Ma Shengming 
Published: July 2007

AbstractAn efficient protocol for the highly regio‐ and stereoselective synthesis of 4‐(3′‐hydroxy‐2′‐iodoalk‐1′(Z)‐enyl)furan‐2(5H)‐one derivatives via selective iodohydroxylation of non‐heteroatom‐substituted allenes, i.e., 4‐allenyl‐2(5H)furanones, has been developed. The regio‐ and stereoselectivity of this reaction may be controlled by the electronic and steric effects of the furanone ring.
Dynamic Kinetic Resolution of Primary Alcohols with an Unfunctionalized Stereogenic Center in the β‐Position
Authors: Strübing Dirk , Krumlinde Patrik , Piera Julio , Bäckvall Jan‐E. 
Published: July 2007

AbstractPrimary alcohols with an unfunctionalized stereogenic center in the β‐position undergo an enzyme‐ and metal‐catalyzed dynamic kinetic resolution (DKR). The in situ racemization of the primary alcohol, required for the DKR, takes place via: (i) ruthenium‐catalyzed dehydrogenation of the alcohol, (ii) enolization of the aldehyde formed, and (iii) ruthenium‐catalyzed readdition of hydrogen to the aldehyde. The present method widens the scope of metal‐ and enzyme‐catalyzed DKR, which has so far been limited to α‐chiral alcohol and amine derivatives.
Solid flow rate prediction in silo discharge of aerated cohesive powders
Authors: Barletta Diego , Donsì Giorgio , Ferrari Giovanna , Poletto Massimo , Russo Paola 
Published: July 2007

AbstractAerated discharge of six cohesive powders differing in particle size, density and flow properties is presented. These samples were characterized by means of fluidization experiments and rheology shear tests carried out in a ring shear tester. In the silo discharge experiments the measurements of the discharge rates and the mass of residual solids as a function of the aeration rate were carried out. In addition, photographic techniques highlighted the aggregative behavior of these powders. Solids aggregates, in fact, were visible within the aerated beds of solids during the fluidization experiments and in the streams of the discharging solids. Experimental data on powder flow properties and on fluidization were analyzed in order to evaluate aggregate diameters. These values compared fairly well with the aggregate diameters observed and allowed evaluation of the voidage values external to the aggregates. These results were used in a modified form of the De Jong and Hoelen equation to predict the solid discharge rate with reasonable accuracy. A modified version of this procedure has been proposed to evaluate the aggregate density and diameter starting from the vibrated density of the powder. This makes preliminary powder fluidization experiments unnecessary in the estimation of the solid discharge rates. © 2007 American Institute of Chemical Engineers AIChE J, 2007
Developmental origins of life history: Growth, productivity, and reproduction
Authors: Kuzawa Christopher W. 
Published: July 2007

AbstractThere is now much evidence that early life undernutrition elevates risk of diseases like cardiovascular disease. Less clear is whether the underlying developmental plasticity in metabolism and physiology evolved to serve an adaptive function, beyond these effects on pathophysiology. This review builds from principles of life history theory to propose a functional model linking early environments with adult biology. An organism has metabolic potential in excess of survival requirements, called productivity, that supports growth before being shunted into reproduction after growth ceases. This concept from inter‐specific studies leads to the prediction that plasticity in growth rate will be positively correlated with components of future adult reproductive expenditure. Consistent with this idea, evidence is reviewed that early nutrition or growth rate predict offspring size in females, and increased somatic investment related to reproductive strategy in males. Thus, population birth weight and sexual size dimorphism are predicted to increase in response to improvements in early nutrition. A striking feature of the continuity of metabolic production is its perpetuation not merely during the lifecycle but across generations: in females, growth rate predicts future nutritional investment in reproduction, which in turn determines fetal growth rate in the next generation. Growth and reproduction serve as mutually‐defining templates, thus creating a phenotypic bridge allowing ecologic information to be maintained during ontogeny and transmitted to offspring. Resetting of metabolic production in response to maternal nutritional cues may serve a broader goal of integrating nutritional information within the matriline, thus providing a more reliable basis for adjusting long‐term strategy. Am. J. Hum. Biol., 2007. © 2007 Wiley‐Liss, Inc.
Genetic and environmental influences on infant weight and weight change: The Fels longitudinal study
Authors: Demerath Ellen W. , Choh Audrey C. , Czerwinski Stefan A. , Lee Miryoung , Sun Shumei S. , Chumlea WM. Cameron , Duren Dana , Sherwood Richard J. , Blangero John , Towne Bradford , Siervogel Roger M. 
Published: July 2007

AbstractDespite significant progress in understanding the mechanisms by which the prenatal/maternal environment can alter development and adult health, genetic influences on normal variation in growth are little understood. This work examines genetic and nongenetic contributions to body weight and weight change during infancy and the relationships between weight change and adult body composition. The dataset included 501 white infants in 164 nuclear and extended families in the Fels Longitudinal Study, each with 10 serial measures of weight from birth to age 3 years and 232 with body composition data in mid‐adulthood. Heritability and covariate effects on weight and weight z‐score change from birth to 2 years of age were estimated using a maximum likelihood variance decomposition method. Additive genetic effects explained a high proportion of the variance in infant weight status (h2 = 0.61–0.95), and change in weight z‐score (h2 = 0.56–0.82). Covariate effects explained 27% of the phenotypic variance at 0–1 month of age and declined in effect to 6.9% of phenotypic variance by 36 months. Significant sex, gestational age, birth order, birth year, and maternal body mass index effects were also identified. For both sexes, a significant increase in weight z‐score (≫2 SD units) (upward centile crossing) was associated with greater adulthood stature, fat mass, and percent body fat than decrease or stability in weight z‐score. Understanding genetic influences on growth rate in a well‐nourished, nutritionally stable population may help us interpret the causes and consequences of centile crossing in nutritionally compromised contexts. Am. J. Hum. Biol., 2007. © 2007 Wiley‐Liss, Inc.