bluuebunny/crossref_metadata_2025_split huggingface dataset:
A cloud‐based taxi trace mining framework for smart city
Authors: Liu Jin , Yu Xiao , Xu Zheng , Choo Kim‐Kwang Raymond , Hong Liang , Cui Xiaohui 
Published: August 2016

SummaryAs a well‐known field of big data applications, smart city takes advantage of massive data analysis to achieve efficient management and sustainable development in the current worldwide urbanization process. An important problem in smart city is how to discover frequent trajectory sequence pattern and cluster trajectory. To solve this problem, this paper proposes a cloud‐based taxi trajectory pattern mining and trajectory clustering framework for smart city. Our work mainly includes (1) preprocessing raw Global Positioning System trace by calling the Baidu API Geocoding; (2) proposing a distributed trajectory pattern mining (DTPM) algorithm based on Spark; and (3) proposing a distributed trajectory clustering (DTC) algorithm based on Spark. The proposed DTPM algorithm and DTC algorithm can overcome the high input/output overhead and communication overhead by adopting in‐memory computation. In addition, the proposed DTPM algorithm can avoid generating redundant local trajectory patterns to significantly improve the overall performance. The proposed DTC algorithm can enhance the performance of trajectory similarity computation by transforming the trajectory similarity calculation into AND and OR operators. Experimental results indicate that DTPM algorithm and DTC algorithm can significantly improve the overall performance and scalability of trajectory pattern mining and trajectory clustering on massive taxi trace data. Copyright © 2016 John Wiley & Sons, Ltd.
Asymmetric Hydrogenation of Quinoline Derivatives Catalyzed by Cationic Transition Metal Complexes of Chiral Diamine Ligands: Scope, Mechanism and Catalyst Recycling
Authors: Luo Yi‐Er , He Yan‐Mei , Fan Qing‐Hua 
Published: August 2016

AbstractThis personal account is focused on the asymmetric hydrogenation of quinolines and their analogues recently developed by using phosphorus‐free chiral cationic ruthenium(II)/η6‐arene‐N‐monosulfonylated diamine complexes. In our initial study, the chiral Ru‐diamine complexes were found to be highly effective catalysts for the asymmetric hydrogenation of difficult quinoline substrates in room temperature ionic liquids (RTILs) with unprecedentedly excellent enantioselectivity. Our further systematic study revealed that a wide range of quinoline derivatives could be efficiently hydrogenated in alcoholic solvents, or under solvent‐free and concentrated conditions with good to excellent stereoselectivity. Complexes of iridium analogues could also efficiently catalyze the asymmetric hydrogenation of quinolines in undegassed solvent. Asymmetric tandem reduction of various 2‐(aroylmethyl)quinolines was achieved in high yield with excellent enantioselectivity and good diastereoselectivity. More challenging substrates, alkyl‐ and aryl‐substituted 1,5‐ and 1,8‐naphthyridine derivatives were successfully hydrogenated with these chiral ruthenium catalysts to give 1,2,3,4‐tetrahydronaphthyridines with good to excellent enantioselectivity. Unlike the asymmetric hydrogenation of ketones, quinoline is reduced via a stepwise H+/H‐ transfer process outside the coordination sphere rather than a concerted mechanism. The enantioselectivity originates from the CH/π attraction between the η6‐arene ligand in the Ru‐complex and the fused phenyl ring of dihydroquinoline via a 10‐membered ring transition state with the participation of TfO‐ anion. In addition, the Ru‐catalyzed asymmetric hydrogenation of quinolines could be carried out in some environmentally benign reaction media, such as undegassed water, RTILs and oligo(ethylene glycol)s (OEGs). In the latter two cases, unique chemoselectivity and/or reactivity were observed. Catalyst recycling could also be realized by using [BMIM]PF6 and OEGs as solvents, as well as via magnetic nanoparticles. Applications of this catalytic protocol were also exemplified by the employments of the reduced products for the syntheses of some important natural alkaloids, pharmaceutical intermediates, as well as chiral diamine ligands.
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A systems engineering analysis of three‐point and four‐point wind turbine drivetrain configurations
Authors: Guo Y. , Parsons T. , Dykes K. , King R.N. 
Published: August 2016

AbstractThis study compares the impact of drivetrain configuration on the mass and capital cost of a series of wind turbines ranging from 1.5 MW to 5.0 MW power ratings for both land‐based and offshore applications. The analysis is performed with a new physics‐based drivetrain analysis and sizing tool, Drive Systems Engineering (DriveSE), which is part of the Wind‐Plant Integrated System Design & Engineering Model. DriveSE uses physics‐based relationships to size all major drivetrain components according to given rotor loads simulated based on International Electrotechnical Commission design load cases. The model's sensitivity to input loads that contain a high degree of variability was analyzed. Aeroelastic simulations are used to calculate the rotor forces and moments imposed on the drivetrain for each turbine design. DriveSE is then used to size all of the major drivetrain components for each turbine for both three‐point and four‐point configurations. The simulation results quantify the trade‐offs in mass and component costs for the different configurations. On average, a 16.7% decrease in total nacelle mass can be achieved when using a three‐point drivetrain configuration, resulting in a 3.5% reduction in turbine capital cost. This analysis is driven by extreme loads and does not consider fatigue. Thus, the effects of configuration choices on reliability and serviceability are not captured. However, a first order estimate of the sizing, dimensioning and costing of major drivetrain components are made which can be used in larger system studies which consider trade‐offs between subsystems such as the rotor, drivetrain and tower. Copyright © 2016 John Wiley & Sons, Ltd.
Engineering levoglucosan metabolic pathway in Rhodococcus jostii RHA1 for lipid production
Authors: Xiong Xiaochao , Lian Jieni , Yu Xiaochen , Garcia-Perez Manuel , Chen Shulin 
Published: August 2016

Abstract
Oleaginous strains of Rhodococcus including R. jostii RHA1 have attracted considerable attention due to their ability to accumulate triacylglycerols (TAGs), robust growth properties and genetic tractability. In this study, a novel metabolic pathway was introduced into R. jostii by heterogenous expression of the well-characterized gene, lgk encoding levoglucosan kinase from Lipomyces starkeyi YZ-215. This enables the recombinant R. jostii RHA1 to produce TAGs from the anhydrous sugar, levoglucosan, which can be generated efficiently as the major molecule from the pyrolysis of cellulose. The recombinant R. jostii RHA1 could grow on levoglucosan as the sole carbon source, and the consumption rate of levoglucosan was determined. Furthermore, expression of one more copy of lgk increased the enzymatic activity of LGK in the recombinant. However, the growth performance of the recombinant bearing two copies of lgk on levoglucosan was not improved. Although expression of lgk in the recombinants was not repressed by the glucose present in the media, glucose in the sugar mixture still affected consumption of levoglucosan. Under nitrogen limiting conditions, lipid produced from levoglucosan by the recombinant bearing lgk was up to 43.54 % of the cell dry weight, which was comparable to the content of lipid accumulated from glucose. This work demonstrated the technical feasibility of producing lipid from levoglucosan, an anhydrosugar derived from the pyrolysis of lignocellulosic materials, by the genetically modified rhodococci strains.
Barriers to Green Consumption Behaviours: The Roles of Consumers’ Green Perceptions
Authors: Tan Lay Peng , Johnstone Micael-Lee , Yang Lin 
Published: August 2016

The purpose of this study is to explore the concept of consumers’ green perceptions (CGPs) which encompasses consumers’ current perceptions of green products, green consumers, green consumption practices, and green marketing communications. We hypothesise that CGPs may influence their consumption behaviour and how ready they are to be green. Focus groups were used to explore the concept of CGPs. Stage Two involved two surveys in Australia and New Zealand to test and corroborate the themes that were identified in the exploratory study. We identified five dimensions underpinning CGPs. These include “product perception”, “hard to be green”, “green stigma”, “perceived sense of responsibility” and “readiness to be green”. This paper presents the findings from both studies, provides empirical insights into Australian and New Zealand consumers’ green perceptions and demonstrates the explanatory power of CGPs in predicting green consumption behaviour, in particular their likelihood to purchase green household products.
Reduced endogenous urinary total antioxidant power and its relation of plasma antioxidant activity of superoxide dismutase in individuals with autism spectrum disorder
Authors: Yui Kunio , Tanuma Nasoyuki , Yamada Hiroshi , Kawasaki Yohei 
Published: August 2016

AbstractIndividuals with autism spectrum disorders (ASD) have impaired detoxification capacity. Investigating　the neurobiological bases of　impaired antioxidant capacity is thus a research priority in the pathophysiology of ASD.　We measured　the urinary levels of hexanoyl‐lysine (HEL) which is a new oxidative stress　biomarker, total antioxidant power (TAP) and DNA methylation biomarker 8‐hydroxy‐2′‐deoxyguanosine (8‐OHdG), and the plasma levels of superoxide dismutase (SOD), which is a major antioxidant enzyme. We examined whether the urinary levels of these enzymes and biomarkers may be related to symptoms of social impairment in 20 individuals with ASD (meanage,11.1 ± 5.2 years) and 12 age‐ and gender‐matched healthy controls (meanage,14.3 ± 6.2 years). Symptoms of social impairment were　assessed using the Social Responsiveness Scale (SRS). The dietary TAP of the fruit juice, chocolate, cookies, biscuits, jam and marmalade were significantly higher in the ASD group than in the control group, although the intake of nutrients was not significantly different between the groups. The urinary TAP levels were significantly lower in the ASD group than in the control group. There were no significantly differences in urinary HEL and 8‐OHdG levels between the ASD and control groups. The SRS scores were significantly higher in the ASD group than in the control group. Stepwise regression analysis revealed that urinary TAP levels and plasma SOD levels can differences in the biomarkers and the SRS scores between the ASD group and the control group. The endogenous antioxidant capacity may be deficient without altered urinary HEL and 8‐OHdG levels in individuals with ASD. The plasma SOD levels may be related to reduced endogenous antioxidant capacity.
Female genital mutilation among mothers and daughters in Harar, eastern Ethiopia
Authors: Oljira Teshome , Assefa Nega , Dessie Yadeta 
Published: August 2016

AbstractObjectiveTo assess the practice of female genital mutilation (FGM) among mothers and daughters, and to investigate sociodemographic factors influencing the practice of FGM in Harar, Ethiopia.MethodsA community‐based cross‐sectional study was conducted among women aged 15 years or older who had at least one living daughter younger than 12 years via the Harar Health and Demographic Surveillance System 2013. Data were collected through face‐to‐face interviews. The practice of FGM was compared between mothers and their daughters. Whether the daughter had undergone FGM was included as an outcome variable in bivariate and multivariate analyses.ResultsAmong 842 mothers, 669 (79.5%) reported that they had undergone FGM themselves, and 160 (19.0%) that their daughter had undergone FGM. Traditional practitioners were said to be the major performers of FGM by 151 (94.4%) mothers. Mothers whose daughter was mutilated mentioned social acceptance (144 [90.0%] women) and better marriage prospects (96 [60.0%]) as the major benefits. Genital mutilation of daughters was significantly associated with maternal age, education to grade 1–4, and FGM experience. Amhara ethnic origin was significantly associated with a reduced likelihood of FGM among daughters.ConclusionOver one generation, the incidence of FGM has reduced. Increasing advocacy against FGM and enforcement of law should be emphasized.
RETRACTED: Management of postpartum hemorrhage with intrauterine balloon tamponade using a condom catheter in an Egyptian setting
Authors: Kandeel Mohamed , Sanad Zakaria , Ellakwa Hamed , El Halaby Alaa , Rezk Mohamed , Saif Ibrahim 
Published: August 2016

AbstractObjectiveTo evaluate uterine balloon tamponade using a condom catheter for the management of early postpartum hemorrhage (PPH).MethodsIn a prospective observational study at Menoufia University Hospital, Shebin Elkom, Egypt, women with early PPH were enrolled between May 2011 and September 2012. Uterine balloon tamponade with a condom catheter was applied in women who were unresponsive to uterotonics and bimanual compression; patients with successful catheter placement were included in analyses. The primary outcome was successful control (reduction or cessation) of bleeding.ResultsA condom catheter was successfully placed for 50 of the 151 women enrolled. The overall success rate of the procedure was 96% (48/50). The condom catheter was successful in all 28 cases of atonic PPH after vaginal or cesarean delivery. It successfully controlled PPH due placental site bleeding in 20 (91%) of 22 patients with placenta previa and a well‐contracted uterus.ConclusionCondom balloon catheter was found to effectively control PPH. The procedure is simple, inexpensive, and safe, and can preserve reproductive capacity, as well as saving the life of the mother.ClinicalTrials.gov:NCT02672891.
Disaster Medicine in the 21st Century: Future Hazards, Vulnerabilities, and Risk
Authors: Arnold Jeffrey L. 
Published: August 2016

AbstractThe prediction of future disasters drives the priorities, urgencies, and perceived adequacies of disaster management, public policy, and government funding. Disasters always arise from some fundamental dysequilibrium between hazards in the environment and the vulnerabilities of human communities. Understanding the major factors that will tend to produce hazards and vulnerabilities in the future plays a key role in disaster risk assessment.The factors tending to produce hazards in the 21st Century include population growth, environmental degradation, infectious agents (including biological warfare agents), hazardous materials (industrial chemicals, chemical warfare agents, nuclear materials, and hazardous waste), economic imbalance (usually within countries), and cultural tribalism. The factors tending to generate vulnerabilities to hazardous events include population growth, aging populations, poverty, maldistribution of populations to disaster-prone areas, urbanization, marginalization of populations to informal settlements within urban areas, and structural vulnerability.An increasing global interconnectedness also will bring hazards and vulnerabilities together in unique ways to produce familiar disasters in unfamiliar forms and unfamiliar disasters in forms not yet imagined. Despite concerns about novel disasters, many of the disasters common today also will be common tomorrow.The risk of any given disaster is modifiable through its manageability. Effective disaster management has the potential to counter many of the factors tending to produce future hazards and vulnerabilities. Hazard mitigation and vulnerability reduction based on a clear understanding of the complex causal chains that comprise disasters will be critical in the complex world of the 21st Century.
Psychological Distress Following Urban Earthquakes in California
Authors: Bourque Linda B. , Siegel Judith M. , Shoaf Kimberley I. 
Published: August 2016

AbstractDuring and following a disaster caused by a natural event, human populations are thought to be at greater risk of psychological morbidity and mortality directly attributable to increased, disaster-induced stress. Drawing both on the research of others and that conducted at the Center for Public Health and Disaster Relief of the University of California-Los Angeles (UCLA) following California earthquakes, this paper examines the extent to which research evidence supports these assumptions. Following a brief history of disaster research in the United States, the response of persons at the time of an earthquake was examined with particular attention to psychological morbidity; the number of deaths that can be attributed to cardiovascular events and suicides; and the extent to which and by whom, health services are used following an earthquake. The implications of research findings for practitioners in the field are discussed.
Rapid On-site Defibrillation versus Community Program
Authors: Fedoruk J.C. , Paterson D. , Hlynka M. , Fung K.Y. , Gobet Michael , Currie Wayne 
Published: August 2016

AbstractIntroduction:For patients who suffer out-of-hospital cardiac arrest, the time from collapse to initial defibrillation is the single most important factor that affects survival to hospital discharge. The purpose of this study was to compare the survival rates of cardiac arrest victims within an institution that has a rapid defibrillation program with those of its own urban community, tiered EMS system.Methods:A logistic regression analysis of a retrospective data series (n = 23) and comparative analysis to a second retrospective data series (n = 724) were gathered for the study period September 1994 to September 1999. The first data series included all persons at Casino Windsor who suffered a cardiac arrest. Data collected included: age, gender, death/survival (neurologically intact discharge), presenting rhythm (ventricular fibrillation (VF), ventricular tachycardia (VT), or other), time of collapse, time to arrival of security personnel, time to initiation of cardiopulmonary resuscitation (CPR) prior to defibrillation (when applicable), time to arrival of staff nurse, time to initial defibrillation, and time to return of spontaneous circulation (if any). Significantly, all arrests within this series were witnessed by the surveillance camera system, allowing time of collapse to be accurately determined rather than estimated. These data were compared to those of similar events, times, and intervals for all patients in the greater Windsor area who suffered cardiac arrest. This second series was based upon the Ontario Prehospital Advanced Life Support (OPALS) Study database, as coordinated by the Clinical Epidemiology Unit of the Ottawa Hospital, University of Ottawa.Results:The Casino Windsor had 23 cases of cardiac arrests. Of the cases, 13 (56.5%) were male and 10 (43.5%) were female. All cases (100%) were witnessed. The average of the ages was 61.1 years, of the time to initial defibrillation was 7.7 minutes, and of the time for EMS to reach the patient was 13.3 minutes. The presenting rhythm was VF/VT in 91% of the case. Fifteen patients were discharged alive from hospital for a 65% survival rate. The Greater Windsor Study area included 668 cases of out-of-hospital cardiac arrest: Of these, 410 (61.4%) were male and 258 (38.6%) were female, 365 (54.6%) were witnessed, and 303 (45.4%) were not witnessed. The initial rhythm was VF/VT was in 34.3%. Thirty-seven (5.5%) were discharged alive from the hospital.Conclusion:This study provides further evidence that PAD Programs may enhance cardiac arrest survival rates and should be considered for any venue with large numbers of adults as well as areas with difficult medical access.
Mass Gathering Events: Retrospective Analysis of Patient Presentations over Seven Years
Authors: Zeitz Kathryn M. , Schneider David P.A. , Jarrett Dannielle , Zeitz Christopher J. 
Published: August 2016

AbstractIntroduction:St John Ambulance Operations Branch Volunteers have been providing first-aid services at the Royal Adelaide Show for 90 years. The project arose from a need to more accurately predict the workload for first-aid providers at mass gathering events. A formal analysis of workload patterns and the determinants of workload had not been performed.Hypothesis:Casualty presentation workload would be predicted by factors including day of the week, weather, and crowd size.Method:Collated and analyzed casualty reports over a seven-year period representing >7,000 patients who presented for first-aid assistance for that period (63 show days) were reviewed retrospectively.Results:Casualty presentations correlated significantly with crowd size, maximum daily temperature, humidity, and day of the week. Patient presentation rate had heterogeneous determinants. The most frequent presentation was minor medical problems with Wednesdays attracting higher casualty presentations and more major medical categories.Conclusion:Individual event analysis is a useful mechanism to assist in determining resource allocation at mass gathering events providing an evidence base upon which to make decisions about future needs. Subsequent analysis of other events will assist in supporting accurate predictor models.
Mass-Gathering Medical Care: A Review of the Literature
Authors: Milsten Andrew M. , Maguire Brian J. , Bissell Rick A. , Seaman Kevin G. 
Published: August 2016

AbstractMass-gatherings events provide a difficult setting for which to plan an appropriate emergency medical response. Many of the variables that affect the level and types of medical needs, have not been fully researched. This review examines these variables.Methods:An extensive review was conducted using the computerized databasesMedlineandHealthstarfrom 1977 through May 2002. Articles selected contained information pertaining to mass-gathering variables. These articles were read, abstracted, analyzed, and compiled.Results:Multiple variables are present during a mass gathering, and they interact in complex and dynamic ways. The interaction of these variables contributes to the number of patients treated at an event (medical usage rate) as well as the observed injury patterns. Important variables include weather, event type, event duration, age, crowd mood and density, attendance, and alcohol and drug use.Conclusions:Developing an understanding of the variables associated with mass gatherings should be the first step for event planners. After these variables are considered, a thorough needs analysis can be performed and resource allocation can be based on objective data.