bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sickness absence and workplace levels of satisfaction with psychosocial work conditions at public service workplaces
Authors: Munch‐Hansen Torsten , Wieclaw Joanna , Agerbo Esben , Westergaard‐Nielsen Niels , Rosenkilde Mikael , Bonde Jens Peter 
Published: November 2008

AbstractBackgroundThe objective of this study was to examine the impact of psychosocial work conditions on sickness absence while addressing methodological weaknesses in earlier studies.MethodsThe participants were 13,437 employees from 698 public service workplace units in Aarhus County, Denmark. Satisfaction with psychosocial work conditions was rated on a scale from 0 (low) to 10 (high). Individual ratings were aggregated to workplace scores. Analysis of variance was used to compare the average number of days of yearly sickness absence in three groups with different levels of satisfaction with psychosocial work conditions.ResultsSickness absence was 30.8% lower in the most satisfied group (11.7 days/year (CI 95%: 10.2; 13.1)) than in the least satisfied group (16.9 days/year (CI 95%: 15.3; 18.6)) adjusted for the covariates included.ConclusionsSatisfaction with psychosocial work conditions has a strong and independent impact on sickness absence. Am. J. Ind. Med. 52:153–161, 2009. © 2008 Wiley‐Liss, Inc.
Optimum survey methods when interviewing employed women
Authors: Dunning Kari , LeMasters Grace K. 
Published: November 2008

AbstractBackgroundWhile survey studies have examined bias much is unknown regarding specific subpopulations, especially women workers.MethodsA population based phone, Internet, and mail survey of workplace falls during pregnancy was undertaken. Participation by industry and occupation and survey approach and bias, reliability, and incomplete data were examined.ResultsOf the 3,997 women surveyed, 71% were employed during their pregnancy. Internet responders were most likely to be employed while pregnant and to report a workplace fall at 8.8% compared to 5.8% and 6.1% for mail and phone respondents. Internet responders had the most missing employment data with company name missing for 17.9% compared to 1.3% for phone responders. Mail surveys were best for recruiting those employed in eight of nine industries, and this was especially true for service occupations.ConclusionsTo decrease bias and increase participation, mixed approaches may be useful with particular attention for collecting occupational data. Am. J. Ind. Med. 52:105–112, 2009. © 2008 Wiley‐Liss, Inc.
Overlap between autism and specific language impairment: comparison of Autism Diagnostic Interview and Autism Diagnostic Observation Schedule scores
Authors: Leyfer Ovsanna T. , Tager‐Flusberg Helen , Dowd Michael , Tomblin J. Bruce , Folstein Susan E. 
Published: November 2008

AbstractAutism and specific language impairment (SLI) are developmental disorders that, although distinct by definition, have in common some features of both language and social behavior. The goal of this study was to further explore the extent to which specific clinical features of autism are seen in SLI. The children with the two disorders, matched for non‐verbal IQ, were compared on the Autism Diagnostic Interview—Revised (ADI‐R) and the Autism Diagnostic Observation Schedule (ADOS). In the SLI group, 41% met autism or autism spectrum cut‐offs for social or communication domains either on the ADI or ADOS or both. No relationship was found between the language deficits exhibited by the children with SLI and their scores on the ADI and ADOS. These findings contribute to evidence that there is some overlap in social and communicative deficits between autism and SLI, supporting the view that autism and SLI share etiologic factors. This continuum of pathology between SLI and autism appears to range from structural language abnormalities as seen in individuals with SLI to individuals with SLI with both structural and social abnormalities to individuals with autism with pragmatic impairment and language abnormalities.
Effects of gestational exposure to 1.95‐GHz W‐CDMA signals for IMT‐2000 cellular phones: Lack of embryotoxicity and teratogenicity in rats
Authors: Ogawa Kumiko , Nabae Kyoko , Wang Jianqing , Wake Kanako , Watanabe So‐ichi , Kawabe Mayumi , Fujiwara Osamu , Takahashi Satoru , Ichihara Toshio , Tamano Seiko , Shirai Tomoyuki 
Published: November 2008

AbstractThe present study was designed to evaluate whether gestational exposure to an EMF targeting the head region, similar to that from cellular phones, might affect embryogenesis in rats. A 1.95‐GHz wide‐band code division multiple access (W‐CDMA) signal, which is one applied for the International Mobile Telecommunication 2000 (IMT‐2000) system and used for the freedom of mobile multimedia access (FOMA), was employed for exposure to the heads of four groups of pregnant CD(SD) IGS rats (20 per group) for gestational days 7–17. The exposure was performed for 90 min/day in the morning. The spatial average specific absorption rate (SAR) for individual brains was designed to be 0.67 and 2.0 W/kg with peak brain SARs of 3.1 and 7.0 W/kg for low (group 3) and high (group 4) exposures, respectively, and a whole‐body average SAR less than 0.4 W/kg so as not to cause thermal effects due to temperature elevation. Control and sham exposure groups were also included. At gestational day 20, all dams were killed and fetuses were taken out by cesarean section. There were no differences in maternal body weight gain. No adverse effects of EMF exposure were observed on any reproductive and embryotoxic parameters such as number of live (243–271 fetuses), dead or resorbed embryos, placental weights, sex ratios, weights or external, visceral or skeletal abnormalities of live fetuses. Bioelectromagnetics 30:205–212, 2009. © 2008 Wiley‐Liss, Inc.
Cognitive effects of radiation emitted by cellular phones: The influence of exposure side and time
Authors: Luria Roy , Eliyahu Ilan , Hareuveny Ronen , Margaliot Menachem , Meiran Nachshon 
Published: November 2008

AbstractThis study examined the time dependence effects of exposure to radiofrequency radiation (RFR) emitted by standard GSM cellular phones on the cognitive functions of humans. A total of 48 healthy right‐handed male subjects performed a spatial working memory task (that required either a left‐hand or a right‐hand response) while being exposed to one of two GSM phones placed at both sides of the head. The subjects were randomly divided into three groups. Each group was exposed to one of three exposure conditions: left‐side of the head, right‐side, or sham‐exposure. The experiment consisted of 12 blocks of trials. Response times (RTs) and accuracy of the responses were recorded. It was found that the average RT of the right‐hand responses under left‐side exposure condition was significantly longer than those of the right‐side and sham‐exposure groups averaged together during the first two time blocks. These results confirmed the existence of an effect of exposure on RT, as well as the fact that exposure duration (together with the responding hand and the side of exposure) may play an important role in producing detectable RFR effects on performance. Differences in these parameters might be the reason for the failure of certain studies to detect or replicate RFR effects. Bioelectromagnetics 30:198–204, 2009. © 2008 Wiley‐Liss, Inc.
Ten-year results of a randomized clinical trial of laparoscopic total fundoplication with or without division of the short gastric vessels
Authors: Mardani J , Lundell L , Lönroth H , Dalenbäck J , Engström C 
Published: November 2008

Abstract

Background
Total fundoplication is the most common antireflux operation and can be performed with or without division of the short gastric vessels. There seems to be no difference in short-term outcomes with either approach. The aim of the study was to determine whether there were the long-term differences (after 10 years).

Methods
Ninety-nine patients were enrolled in the study. Short gastric vessels were divided in 52 patients (group 1) and left intact in 47 (group 2). Ten patients were lost to follow-up and seven patients died, leaving 42 patients for analysis in group 1 and 40 in group 2. All patients were evaluated by standardized quality of life questionnaires.

Results
Three patients underwent reoperation within 5 years. Thirty-eight of 42 patients with a completely mobilized fundus reported no reflux symptoms, compared with 31 of 40 patients with intact vessels. There were no differences between the groups in other symptoms reflecting postfundoplication complaints and quality of life outcomes.

Conclusion
When total fundoplication is performed it makes no difference whether the fundus is mobilized or not. Both types of repair provide lasting control of reflux.
Novel Acyl Phosphate Mimics that Target PlsY, an Essential Acyltransferase in Gram‐Positive Bacteria
Authors: Grimes Kimberly D. , Lu Ying‐Jie , Zhang Yong‐Mei , Luna Vicki A. , Hurdle Julian G. , Carson Elizabeth I. , Qi Jianjun , Kudrimoti Sucheta , Rock Charles O. , Lee Richard E. 
Published: November 2008

AbstractPlsY is a recently discovered acyltransferase that executes an essential step in membrane phospholipid biosynthesis in Gram‐ positive bacteria. By using a bioisosteric replacement approach to generate substrate‐based inhibitors of PlsY as potential novel antibacterial agents, a series of stabilized acyl phosphate mimetics, including acyl phosphonates, acyl α,α‐difluoromethyl phosphonates, acyl phosphoramides, reverse amide phosphonates, acyl sulfamates, and acyl sulfamides were designed and synthesized. Several acyl phosphonates, phosphoramides, and sulfamates were identified as inhibitors of PlsY from Streptococcus pneumoniae and Bacillus anthracis. As anticipated, these inhibitors were competitive inhibitors with respect to the acyl phosphate substrate. Antimicrobial testing showed the inhibitors to have generally weak activity against Gram‐positive bacteria with the exception of some acyl phosphonates, reverse amide phosphonates, and acyl sulfamates, which had potent activity against multiple strains of B. anthracis.
Nonuniform sampling: Bandwidth and aliasing
Authors: Bretthorst G. Larry 
Published: November 2008

AbstractFor spectroscopic measurements, there are good reasons why one might consider using nonuniformly nonsimultaneously sampled complex data. The primary one is that the effective bandwidth, the largest spectral window free of aliases, can be much wider than with uniformly sampled data. In this article, we discuss nonuniformly nonsimultaneously sampled data, describe how these data are traditionally analyzed, analyze them using probability theory, and show how probability theory generalizes the discrete Fourier transform: first for uniformly sampled data, then for nonuniformly sampled data, and finally for nonuniformly nonsimultaneously sampled data. These generalizations demonstrate that aliases are not so much removed by nonuniform nonsimultaneous sampling as they are moved to much higher frequencies. © 2008 Wiley Periodicals, Inc. Concepts Magn Reson Part A 32A: 417–435, 2008.
Maximum entropy spectral reconstruction of nonuniformly sampled data
Authors: Mobli Mehdi , Hoch Jeffrey C. 
Published: November 2008

AbstractThe time required to complete a multidimensional NMR experiment is directly proportional to the number of evolution times sampled in the indirect dimensions. A consequence when utilizing conventional methods of data acquisition and spectrum analysis is that resolution in the indirect dimensions is frequently sample‐limited. The problem becomes more acute at very high magnetic fields, where increased chemical shift dispersion requires shorter time increments to avoid aliasing. It has long been recognized that a way to avoid this limitation is to utilize methods of spectrum analysis that do not require data to be sampled at uniform intervals, permitting the collection of data at long evolution times requisite for high resolution without requiring collection of data at all intervening multiples of the sampling interval. Several promising methods have evolved that are seemingly quite different, yet can be shown to yield similar results when applied to similar sampling strategies, emphasizing the importance of the choice of samples, regardless of the technique used to compute the spectrum. Maximum entropy (MaxEnt) reconstruction is a very general method for spectrum analysis of nonuniformly sampled data (NUS), and because it can be used with essentially arbitrary sampling strategies and makes no assumptions about the nature of the signal, it provides a convenient basis for exploring the influence of the choice of samples on spectral quality. In this article we use this versatility of MaxEnt reconstruction to compare different approaches to NUS in multidimensional NMR and suggest strategies for improving spectral quality by careful choice of sample times. © 2008 Wiley Periodicals, Inc.Concepts Magn Reson Part A 32A: 436–448, 2008.
Prediction of gas‐phase 13C nuclear magnetic shielding constants using ONIOM and optimally selected basis functions
Authors: Tafazzoli M. , Shaghaghi H. , Jalali‐Heravi M. 
Published: November 2008

AbstractThe wave functions for calculating gas‐phase 13C nuclear magnetic shielding constants of 22 molecules have been optimally selected using factorial design as a multivariate technique. GIAO and CSGT methods were used for computation of shielding constants. Different wave functions for different types of carbons were recommended. A wave function as the best level of the theory is proposed for almost similar carbons. ONIOM approach for molecules with different types of carbons is applied. The results of GIAO method using the proposed wave function are in very good agreement with the experimental values. An additional series (21 carbons) were used as test sets and their results confirmed the validity of the approaches. © 2008 Wiley Periodicals, Inc.Concepts Magn Reson Part A 32A: 449–461, 2008.
Treatment of myelodysplastic syndrome with 2 schedules and doses of oral topotecan
Authors: Grinblatt David L. , Yu Daohai , Hars Vera , Vardiman James W. , Powell Bayard L. , Nattam Sreenivasa , Silverman Lewis R. , Castro Carlos de , Stone Richard M. , Bloomfield Clara D. , Larson Richard A. ,   for the Cancer and Leukemia Group B
Published: November 2008

AbstractBACKGROUD:The Cancer and Leukemia Group B evaluated oral topotecan administered at 2 schedules and doses for myelodysplastic syndrome (MDS).METHODS:Patients with previously untreated primary or therapy‐related MDS were eligible. Patients with refractory anemia (RA), RA with ringed sideroblasts, or refractory cytopenia with multilineage dysplasia (RCMD) were eligible only if they were dependent on erythrocyte transfusion, had a platelet count <50,000/μL, or had an absolute neutrophil count <1000/μL with a recent infection that required antibiotics. Patients were randomized to receive oral topotecan either at a dose of 1.2 mg/m2 twice daily for 5 days (Arm A) or once daily for 10 days (Arm B) repeated every 21 days for at least 2 cycles. Responding patients continued until they developed disease progression or unacceptable toxicity or until they had received 2 cycles beyond a complete response.RESULTS:Ninety patients received treatment, including 46 patients on Arm A and 44 patients on Arm B. Partial responses with improvement in all 3 cell lines occurred in 6 patients (7%), and hematologic improvement (in 1 or 2 cell lines) was observed in 21 patients (23%), for an overall response rate of 30%. Response duration was longer on Arm A (23 months vs 14 months; P = .02). Seven of 14 patients with chronic myelomonocytic leukemia responded. There were 8 treatment‐related deaths from infection (6 deaths) and bleeding (2 deaths). Diarrhea was the most frequent nonhematologic toxicity (grade 3, 11%; grade 4, 2%; grading determined according to the National Cancer Institute Comman Toxicity Criteria v.2.0).CONCLUSIONS:Oral topotecan in the dose and schedules evaluated in this trial demonstrated only a modest response rate with a troublesome toxicity profile in the treatment of MDS. Cancer 2009. © 2008 American Cancer Society.
Gene expression signature for recurrence in stage III colorectal cancers
Authors: Watanabe Toshiaki , Kobunai Takashi , Sakamoto Etsuko , Yamamoto Yoko , Konishi Tsuyoshi , Horiuchi Atsushi , Shimada Ryu , Oka Toshinori , Nagawa Hirokazu 
Published: November 2008

AbstractBACKGROUND:Colorectal cancer patients with lymph node metastases (stage III) show poorer prognosis than those without. Predicting development of recurrence may guide the need for intensive follow‐up and/or adjuvant chemotherapy in such patients. The authors' objective was to identify a set of discriminating genes that could predict recurrence in stage III colorectal cancer.METHODS:Thirty‐six stage III colorectal cancer patients were studied. Tumor samples were obtained from surgically resected specimens. Thirteen patients developed recurrence, whereas 23 patients did not. Gene expression profiles were determined using human HG‐U133 Plus 2.0 Gene Chip (Affymetrix, Santa Clara, Calif).RESULTS:The authors identified 45 discriminating genes between patients with and without recurrence. By using this gene set, they established a new model to predict recurrence with an accuracy of 90.9%. The discriminating genes included calcineurin‐binding protein 1 (CABIN1), whose expression differed remarkably between patients with and without recurrence (P = .0073). The authors further examined the DNA copy number of CABIN1 and were able to show a significant relation with recurrence (P < .012). Patients having CABIN1 gene loss demonstrated a higher risk of recurrence (odds ratio, 18.8). DNA copy number of CABIN1 alone could predict recurrence with an accuracy of 80.0%.CONCLUSIONS:The results of the current study demonstrated that gene expression profiling is useful in predicting recurrence in stage III colorectal cancer. The authors identified CABIN1 among discriminating genes that may play a key role in the development of recurrence. These results may help to establish an individualized therapy for stage III colorectal cancer. Cancer 2009. © 2009 American Cancer Society.
Theory of Ion Transport in Electrochemically Switchable Nanoporous Metallized Membranes
Authors: Amatore Christian , Oleinick Alexander I. , Svir Irina 
Published: November 2008

AbstractA physicomathematical model of ion transport through a synthetic electrochemically switchable membrane with nanometric metal‐plated pores is presented. Due to the extremely small size of the cylindrical pores, electrical double layers formed inside overlap, and thus, strong electrostatic fields whose intensities vary across the cross‐sections of the nanopores are created. Based on the proposed model a relationship between the relative electrostatic energies experienced by ions in the nanopores and the potential applied to the membrane is established. This allows the prediction of transference numbers and explains quantitatively the ion‐transport switching capability of such synthetic membranes. The predictions of this model agree satisfactorily with previous experimental data obtained for this type of devices by Martin and co‐workers.
Femtosecond to Subnanosecond Multistep Calcium Photoejection from a Crown Ether‐Linked Merocyanine
Authors: Ley Christian , Lacombat Fabien , Plaza Pascal , Martin Monique M. , Leray Isabelle , Valeur Bernard 
Published: November 2008

AbstractPhotoinduced calcium release from the crown ether‐linked merocyanine DCM–crown is reexamined by femtosecond transient absorption spectroscopy with sub‐100 fs time resolution. Photodisruption of the bond linking the cation to the nitrogen atom shared by the crown and the chromophore is found to take place in 130 fs. Confirming our previous reports, the photoinduced intraligand charge transfer is observed in the picosecond regime but kinetics involving three‐components (1 ps, 8 ps and 77 ps), together with a 56 ps stimulated‐emission time‐resolved red shift, are found in the present study. Both delayed intraligand charge transfer and cation release are assumed to occur in this time range due to repulsion effects between the positively charged nitrogen of the crown ether moiety and the cation. In the subnanosecond regime, a 670 ps time‐resolved red shift of the stimulated‐emission spectrum of the charge‐transfer state, similar to the shift previously observed with Sr2+, demonstrates the motion of the cation away from the crown to the bulk. A thorough examination of the present data allows us to conclude that calcium ion is photoejected to the bulk in a multistep process.
Cellulose Conversion under Heterogeneous Catalysis
Authors: Dhepe Paresh L. , Fukuoka Atsushi 
Published: November 2008

AbstractIn view of current problems such as global warming, high oil prices, food crisis, stricter environmental laws, and other geopolitical scenarios surrounding the use of fossil feedstocks and edible resources, the efficient conversion of cellulose, a non‐food biomass, into energy, fuels, and chemicals has received much attention. The application of heterogeneous catalysis could allow researchers to develop environmentally benign processes that lead to selective formation of value‐added products from cellulose under relatively mild conditions. This Minireview gives insight into the importance of biomass utilization, the current status of cellulose conversion, and further transformation of the primary products obtained.
A 5 GHz quadrature relaxation oscillator with mixing for improved testability or compact front‐end implementation
Authors: Oliveira Luis Bica , van den Bos Chris , Fernandes Jorge R. , Verhoeven Chris J. M. , Silva Manuel M. 
Published: November 2008

AbstractWe demonstrate by measurements on a test circuit that a 5 GHz relaxation oscillator with accurate quadrature outputs and low phase‐noise can be obtained, and that these favorable properties can be preserved while the mixing function is performed by this oscillator. This is useful either to measure the quadrature error at a low frequency, or to implement a low‐intermediate frequency (IF) or zero‐IF (homodyne) radio frequency front‐end. Copyright © 2008 John Wiley & Sons, Ltd.
Hardware implementation of CNN architecture‐based test bed for studying synchronization phenomenon in oscillatory and chaotic networks
Authors: Tar Ákos , Gandhi Gaurav , Cserey György 
Published: November 2008

AbstractA 3D modular cellular nonlinear network (CNN) architecture‐based test bed, with four‐neighbor connectivity, used to study synchronization phenomena in oscillatory and chaotic networks is designed. The architecture is implemented as hardware panels including a standalone robust Chua's circuit kit. The details of electronic implementation along with several test cases of connecting Chua's circuits in different topologies are provided. Test cases are adequately supported by oscilloscope traces. Copyright © 2008 John Wiley & Sons, Ltd.
Performance improvement of repetitive controlled PWM inverters: A phase‐lead compensation solution
Authors: Zhang Bin , Zhou Keliang , Wang Yigang , Wang Danwei 
Published: November 2008

AbstractThe compensation of the phase lag plays an important role in the improvement of convergence rate, tracking accuracy, and robustness of repetitive controller. However, it is often difficult to compensate the system phase lag exactly due to variation of the load and unknown disturbances. An alternative way is to provide a simple but effective phase compensation to compensate the phase lag in a frequency band that contains the major tracking error components. With this motivation, a repetitive control scheme with a linear phase‐lead compensator is proposed and applied to the control of constant‐voltage constant‐frequency pulse‐width modulated DC–AC inverters. Detailed analysis of phase compensation on system stability is provided, and conditions for the design of phase compensation are derived. The experimental results under different loads and load changes show that the proposed scheme can achieve high tracking accuracy, low total harmonic distortion, and fast dynamic response. Copyright © 2008 John Wiley & Sons, Ltd.