bluuebunny/crossref_metadata_2025_split huggingface dataset:
Job stress and depressive symptoms among migrant workers in Macau: A moderated mediation model of self‐esteem and perceived social support
Authors: Li Qianfeng , Chi Peilian , Hall Brian J. , Wu Qinglu , Du Hongfei 
Published: June 2019

AbstractDamaged self‐esteem can explain the negative effects of various job stresses on depressive symptoms of migrant workers. Social support may threaten workers’ self‐esteem in highly stressful environments, and in turn worsen their mental health. This study aimed to examine the indirect role of self‐esteem in the relationship between job stress and depressive symptoms among migrant workers in Macau and whether this indirect effect is modified by social support. A sample of 900 mainland Chinese migrant workers was recruited into the study. Job stress, social support, self‐esteem, and depressive symptoms were measured. Conditional process analysis was used to examine the proposed moderated mediation model. Job stress was associated with depressive symptoms through lower self‐esteem. The indirect effect of job stress on depressive symptoms via decreased self‐esteem was significant among migrant workers with higher levels of social support, but not among migrant workers with lower levels of social support. Our findings suggest that when migrant workers perceive a high level of social support, job stress is more likely to threaten their self‐esteem and in turn increase their risk for depression. Future efforts aimed at promoting the mental health of migrant workers need to tailor interventions to avoid the threatening effect of social support on self‐esteem in job environments with high stress.
TATB Sensitivity to Shocks from Electrical Arcs
Authors: Chen Kenneth C. , Warne Larry K. , Jorgenson Roy E. , Niederhaus John H. 
Published: June 2019

AbstractUse of insensitive high explosives (IHEs) has significantly improved ammunition safety because of their remarkable insensitivity to violent cook‐off, shock and impact. Triamino‐trinitrobenzene (TATB) is the IHE used in many modern munitions. Previously, lightning simulations in different test configurations have shown that the required detonation threshold for standard density TATB at ambient and elevated temperatures (250 C) has a sufficient margin over the shock caused by an arc from the most severe lightning. In this paper, the Braginskii model with Lee‐More channel conductivity prescription is used to demonstrate how electrical arcs from lightning could cause detonation in TATB. The steep rise and slow decay in typical lightning pulse are used in demonstrating that the shock pressure from an electrical arc, after reaching the peak, falls off faster than the inverse of the arc radius. For detonation to occur, two necessary detonation conditions must be met: the Pop‐Plot criterion and minimum spot size requirement. The relevant Pop‐Plot for TATB at 250 C was converted into an empirical detonation criterion, which is applicable to explosives subject to shocks of variable pressure. The arc cross‐section was required to meet the minimum detonation spot size reported in the literature. One caveat is that when the shock pressure exceeds the detonation pressure the Pop‐Plot may not be applicable, and the minimum spot size requirement may be smaller.
Synthesis of Propargyl‐Terminated Polybutadiene and Properties of Polytriazole Elastomers
Authors: Gao Wenbo , He Jiyu , Xiao Fei , Yang Rongjie 
Published: June 2019

AbstractCompared with the traditional polyurethane curing system with polyisocyanate group and hydroxyl group prepolymer, the click chemistry curing system with the polyazide group and the terminal alkyne prepolymer has the advantages of single reaction selectivity and insensitivity to oxygen and water. In this paper, the propargyl‐terminated polybutadiene (PTPB) has been synthesized by using hydroxyl terminated polybutadiene (HTPB), potassium t‐butoxide and bromopropyne as raw materials, and the yield is 98.6 %. The polytriazole elastomers have been prepared through copper‐catalyzed azide‐alkyne huisgen [3+2] dipolar cycloaddition reactions between the propargyl‐terminated polybutadiene (PTPB) as binder and azide (−N3) compound as curing agent. Furthermore, the effects of catalyst type, azide functionality and curing parameters (R value) on elastomer properties are investigated by FTIR, DMA, TG, DSC and mechanical tests. It has been obtained that the crosslinking elastomer formed with the PTPB and azide of 3.8 functionality has better mechanical properties and thermal stability. When the molar ratio R of azide group to alkyne group in curing the PTPB is equal to 1, the PTPB elastomer has the biggest tensile strength and smallest tensile strain, and the change of the R value has little effect on the glass transition temperature and thermal stability of the PTPB elastomers.
Feasibility of predicting live birth by combining conventional embryo evaluation with artificial intelligence applied to a blastocyst image in patients classified by age
Authors: Miyagi Yasunari , Habara Toshihiro , Hirata Rei , Hayashi Nobuyoshi 
Published: June 2019

AbstractPurposeTo identify the multivariate logistic regression in a combination (combination method) involving artificial intelligence (AI) classifiers in images of blastocysts along with a conventional embryo evaluation (CEE) to predict the probability of accomplishing a live birth in patients classified by maternal age.MethodsRetrospectively, a total of 5691 blastocysts were enrolled. Images captured 115 hours or 139 hours if not yet sufficiently large after insemination were classified according to age as follows: <35, 35‐37, 38‐39, 40‐41, and ≥42 years old. The classifiers for each category were created by using convolutional neural networks associated with deep learning. Next, the feasibility of a method combining AI with multivariate logistic model functions by CEE was investigated.ResultsThe values of the area under the curve (AUC) and the accuracies to predict live birth achieved by the CEE/AI/combination methods were 0.651/0.634/0.655, 0.697/0.688/0.723, 0.771/0.728/0.791, 0.788/0.743/0.806 and 0.820/0.837/0.888, and 0.631/0.647/0.616, 0.687/0.675/0.671, 0.725/0.697/0.732, 0.714/0.776/0.801, and 0.910/0.866/0.784 for age categories of <35, 35‐37, 38‐39, 40‐41, and ≥42 years old, respectively.ConclusionsThough there were mostly no significant differences regarding the AUC and the sensitivity plus specificity in all age categories, the combination method seemed to be the best.
Highly Uniform and Low Hysteresis Piezoresistive Pressure Sensors Based on Chemical Grafting of Polypyrrole on Elastomer Template with Uniform Pore Size
Authors: Oh Jinwon , Kim Jin‐Oh , Kim Yunjoo , Choi Han Byul , Yang Jun Chang , Lee Serin , Pyatykh Mikhail , Kim Jung , Sim Joo Yong , Park Steve 
Published: June 2019

AbstractSensor‐to‐sensor variability and high hysteresis of composite‐based piezoresistive pressure sensors are two critical issues that need to be solved to enable their practical applicability. In this work, a piezoresistive pressure sensor composed of an elastomer template with uniformly sized and arranged pores, and a chemically grafted conductive polymer film on the surface of the pores is presented. Compared to sensors composed of randomly sized pores, which had a coefficient of variation (CV) in relative resistance change of 69.65%, our sensors exhibit much higher uniformity with a CV of 2.43%. This result is corroborated with finite element simulation, which confirms that with increasing pore size variability, the variability in sensor characteristics also increases. Furthermore, our devices exhibit negligible hysteresis (degree of hysteresis: 2%), owing to the strong chemical bonding between the conductive polymer and the elastomer template, which prevents their relative sliding and displacement, and the porosity of the elastomer that enhances elastic behavior. Such features of the sensor render it highly feasible for various practical applications in the near future.
ZIF‐67‐Derived 3D Hollow Mesoporous Crystalline Co3O4 Wrapped by 2D g‐C3N4 Nanosheets for Photocatalytic Removal of Nitric Oxide
Authors: Liu Dongni , Chen Dongyun , Li Najun , Xu Qingfeng , Li Hua , He Jinghui , Lu Jianmei 
Published: June 2019

AbstractZIF‐67‐derived 3D hollow mesoporous crystalline Co3O4 wrapped by 2D graphitic carbon nitride (g‐C3N4) nanosheets are prepared by low temperature annealing, and are used for the photocatalytic oxidation of nitric oxide (NO) at a concentration of 600 ppb. The p–n heterojunction between Co3O4 and g‐C3N4 forms a spatial conductive network frame and results in a broad visible light response range. The hollow mesoporous structure of Co3O4 contributes to the circulation and adsorption of NO, and the large specific surface area exposes abundant active sites for the reaction of active species. A maximum NO degradation efficiency of 57% is achieved by adjusting the mass of the Co3O4 precursor. Cycling tests and X‐ray diffraction indicate the high stability and recyclability of the composite, making it promising in environmental purification applications.
Rapid Stabilization of Droplets by Particles in Microfluidics: Role of Droplet Formation
Authors: Chacon Orellana Laura Andreina , Baret Jean‐Christophe 
Published: June 2019

AbstractDroplet‐based microfluidics has emerged as a powerful technology for the miniaturization and automation of biochemical assays. The replacement of surfactants by nanoparticles as interfacial stabilizers has gained increasing interest. However, the stabilization mechanism of droplets by nanoparticles in microchannels is poorly understood, drastically hindering the development of practical applications. Current methods for droplet stabilization involve a trade‐off between low droplet production throughput and the waste of a large number of nanoparticles. Herein, we introduce a modification to the droplet production junction that reduces the droplet stabilization time by an order of magnitude, and at the same time significantly reduces the particle waste. Our results show that the limiting step in the kinetics of stabilization is the initial time where both phases come into contact and offer a guideline for the design of particle‐stabilized droplet production devices.
Blunt cerebrovascular injury: incidence and long-term follow-up
Authors: Hundersmarck Dennis , Slooff Willem-Bart M. , Homans Jelle F. , van der Vliet Quirine M. J. , Moayeri Nizar , Hietbrink Falco , de Borst Gert J. , Öner Fetullah Cumhur , Muijs Sander P. J. , Leenen Luke P. H. 
Published: June 2019

Abstract
Purpose
Blunt cerebrovascular injuries (BCVI), which can result in ischemic stroke, are identified in 1–2% of all blunt trauma patients. Computed tomography angiography (CTA) scanning has improved and is the diagnostic modality of choice in BCVI suspected patients. Data about long-term functional outcomes and the incidence of ischemic stroke after BCVI are limited. The aim of this study was to determine BCVI incidence in relation to imaging modality improvements and to determine long-term functional outcomes.

Methods
All consecutive trauma patients from 2007 to 2016 with BCVI were identified from the level 1 trauma center prospective trauma database. Three periods were identified where CTA diagnostic modalities for trauma patients were improved. Long-term functional outcomes using the EuroQol six-dimensional (EQ-6D™) were determined.

Results
Seventy-one BCVI patients were identified among the 12.122 (0.59%) blunt trauma patients. In the first period BCVI incidence among the overall study cohort, polytrauma, basilar skull fracture and cervical trauma subgroups was found to be 0.3%, 0.9%, 1.2%, 4.6%, respectively, which more than doubled towards the third period (0.8, 2.4, 1.9 and 8.5% respectively). Ischemic stroke as a result of BCVI was found in 20 patients (28%). In-hospital stroke rate was lower in patients receiving antiplatelet therapy (p < 0.01). Six in-hospital deaths were BCVI related. Long-term follow-up (follow-up rate of 83%) demonstrated lower functional outcomes compared to Dutch reference populations (p < 0.01). Ischemic stroke was identified as a major cause of functional impairment at long-term follow-up.

Conclusions
Improved CTA diagnostic modalities have increased BCVI incidence. Furthermore, BCVI patients reported significant functional impairment at long-term follow-up. Antiplatelet therapy showed a significant effect on in-hospital stroke rate reduction.
Adverse Events in the Operating Room: Definitions, Prevalence, and Characteristics. A Systematic Review
Authors: Jung James J. , Elfassy Jonah , Jüni Peter , Grantcharov Teodor 
Published: June 2019

AbstractBackgroundAdverse events occur commonly in the operating room (OR) and often contribute to morbidity, mortality, and increased healthcare spending. Validated frameworks to measure and report postoperative outcomes have long existed to facilitate exchanges of structured information pertaining to postoperative complication rates in order to improve patient safety. However, systematic evidence regarding measurement and reporting of intraoperative adverse events (iAE) is still lacking.MethodsWe searched Ovid Medline, Embase, and Cochrane databases for articles published up to June 2016 that measured and reported iAE. We presented the terms and definitions used to describe iAE. We identified the types of reported iAE and summarized them into discrete categories. We reported frequencies of iAE by detection methods.ResultsOf the 47 included studies, 30 were cross‐sectional, 14 were case‐series, and 3 were cohort studies. The studies used 16 different terms and 22 unique definitions to describe 74 types of iAE. Frequencies of iAE appeared to vary depending on the detection methods, with higher numbers reported when direct observation in the OR was used to detect iAE. Twenty studies assessed severity of iAE, which were mostly based on whether they resulted in postoperative outcomes.ConclusionsThis study systematically reviewed the current evidence on prevalence and characteristics of iAE that were detected by direct observation, reviews of patient charts, administrative data and incident reports, and surveys and interviews of healthcare providers. Our findings suggest that direct observation method has the most potential to identify and characterize iAE in detail.
The complete genomic sequence of Streptomyces spectabilis NRRL-2792 and identification of secondary metabolite biosynthetic gene clusters
Authors: Sinha Arkadeep , Phillips-Salemka Silvia , Niraula Tanu-Adhikari , Short Kevin A , Niraula Narayan P 
Published: June 2019

Abstract
This is the first report of a fully annotated genomic sequence of Streptomyces spectabilis NRRL-2792, isolated and identified by The Upjohn Company in 1961. The genome was assembled into a single scaffold for annotation and analysis. The chromosome is linear, 9.5 Mb in size which is one of the largest Streptomyces genomes yet described, has a G+C content of 72%, and encodes for approximately 7943 genes. Antibiotic Secondary Metabolite Analysis Shell (antiSMASH) and Basic Local Alignment Search Tool (BLAST) bioinformatics analyses identified six complete secondary metabolite biosynthetic gene clusters for ectoine, melanin, albaflavenone, spectinomycin, 2-methylisoborneol and coelichelin. Additionally, biosynthetic clusters were identified that shared ≥ 90% gene content with complestatin, hopene, neoaureothin, or undecylprodigiosin. Thirty-one other likely secondary metabolite gene clusters were identified by antiSMASH. BLAST identified two subsets of undecylprodigiosin biosynthetic genes at polar opposites of the chromosome; their duplication was subsequently confirmed by primer walking.
Can Quantitative Research Solve Social Problems? Pragmatism and the Ethics of Social Research
Authors: Powell Thomas C. 
Published: June 2019

AbstractJournal of Business Ethicsrecently published a critique of ethical practices in quantitative research by Zyphur and Pierides (J Bus Ethics 143:1–16, 2017). The authors argued that quantitative research prevents researchers from addressing urgent problems facing humanity today, such as poverty, racial inequality, and climate change. I offer comments and observations on the authors’ critique. I agree with the authors in many areas of philosophy, ethics, and social research, while making suggestions for clarification and development. Interpreting the paper through the pragmatism of William James, I suggest that the authors’ arguments are unlikely to change attitudes in traditional quantitative research, though they may point the way to a new worldview, or Jamesian “sub-world,” in social research.
Evolution of Damodar Fan Delta in the Western Bengal Basin, West Bengal
Authors: Mahata Hirak Kumar , Maiti Ramkrishna 
Published: June 2019

ABSTRACT
Fan delta is formed when an alluvial fan prograde directly into the standing body of water from the adjacent highland. An ancient fan delta was developed 6-10m above from the present sea level at the lower course of Damodar river in the western part of Bengal basin. The present study attempted to represent the evolutionary history of Damodar fan delta in the context of many associative features favor to fan delta formation such as adjacent highland, basin margin faults, accommodation space and standing water body. These elements have been taken into consideration to identify the location, time and processes for the fan delta formation. Data related to tectonic and depositional history, sea level fluctuation and palaeodrainage network have been collected from various sources. These reveal that the western part of Bengal basin is characterized by numbers of north-south trending normal faults, shifting river courses and repeated marine transgression and regression phases. After collecting a huge amount of sediment from Chhotanagpur plateau, Damodar river deposited its sediment in the eastern side of these north-south trending faults in the subaerial and subaqueous environment throughout the geological period. In this region Chhotanagpur plateau, fault-dominated stable shelf and transgressed Bay of Bengal play the role of adjacent highland, accommodation space and standing water body respectively to develop Damodar fan delta. Sedimentation process started in late Cretaceous and still it is continuing in a subaerial environment. These fan forming processes led Damodar river to shift its course and make this region flood prone.
Drainage Pattern and its Bearing on Relative Active Tectonics of a Region: A Study in the Son Valley, Central India
Authors: Dubey R. K. , Shankar Ravi 
Published: June 2019

ABSTRACT
The paper emphasis the participation of different geomorphic parameters related to various characteristics of drainage in evaluation of active tectonics of an area. For the purpose, the morphotectonic evaluations of the Son valley, central India have been carried by involving various drainage related geomorphic indices viz., stream-gradient index (SL), hypsometric integral (HI), drainage basin asymmetry (AF), valley floor height and width ratio (Vf), transverse topographic symmetry factor (T), mountain front sinuosity (Smf), drainage basin shape (BS) and sinuosity index (SI) and relative rock strength (RRS) for classification of relative index of active tectonics (RIAT) in geographic information systems (GIS) environment to understand the role of active tectonics in geomorphologic evolution of the studied region. The established RIAT classes through field validations categorize the valley into four zones such as class 1- low activity ( RIAT &lt; 2.7); class 2-moderate activity ( RIAT =2.7 &lt; 2.99); class 3- high activity (RIAT=2.99 &lt; 3.29); and class 4-very high activity (RIAT&gt;3.29). The sub-dendritic, rectilinear and parallel linear drainage styles in RIAT classified basin reveal the traverse of a network of seventeen faults in association with two major faults namely Son-Narmada-North Fault (SNNF) and Son-Narmada South Fault (SNSF) in variable associations of rocks and multiple types of structural elements present in the Son valley. The signature of vertical upliftments may indicate the instability tectonic activities along the identified network of faults associated with SNNF and SNSF. Hence, the study suggests variable tectonically activeness of area in the Son valley.
Regional and Racial Inequality in Infectious Disease Mortality in U.S. Cities, 1900–1948
Authors: Feigenbaum James J. , Muller Christopher , Wrigley-Field Elizabeth 
Published: June 2019

Abstract
In the first half of the twentieth century, the rate of death from infectious disease in the United States fell precipitously. Although this decline is well-known and well-documented, there is surprisingly little evidence about whether it took place uniformly across the regions of the United States. We use data on infectious disease deaths from all reporting U.S. cities to describe regional patterns in the decline of urban infectious mortality from 1900 to 1948. We report three main results. First, urban infectious mortality was higher in the South in every year from 1900 to 1948. Second, infectious mortality declined later in southern cities than in cities in the other regions. Third, comparatively high infectious mortality in southern cities was driven primarily by extremely high infectious mortality among African Americans. From 1906 to 1920, African Americans in cities experienced a rate of death from infectious disease that was greater than what urban whites experienced during the 1918 flu pandemic.
True lies
Authors: Hugh-Jones David 
Published: June 2019

AbstractGarbarino et al. (J Econ Sci Assoc. https://doi.org/10.1007/s40881-018-0055-4, 2018) describe a new method to calculate the probability distribution of the proportion of lies told in “coin flip” style experiments. I show that their estimates and confidence intervals are flawed. I demonstrate two better ways to estimate the probability distribution of what we really care about—the proportion of liars—and I provide R software to do this.
Arundic acid administration protects astrocytes, recovers histological damage and memory deficits induced by neonatal hypoxia ischemia in rats
Authors: Mari C , Odorcyk FK , Sanches EF , Wartchow KM , Martini AP , Nicola F , Zanotto C , Wyse AT , Gonçalves CA , Netto CA 
Published: June 2019

IntroductionPerinatal hypoxia‐ischemia (HI) is one of the main causes of mortality and chronic neurological morbidity in infants and children. Astrocytes play a key role in HI progression, becoming reactive in response to the injury, releasing S100 calcium binding protein B (S100B). Since S100B inhibition seems to have neuroprotective effects on central nervous system injury models, here we evaluated the neuroprotective effects of an S100B inhibitor, arundic acid (AA) in a HI model.MethodsOn the 7th postnatal day, animals were submitted to the combination of common carotid artery occlusion and hypoxic atmosphere (8% O2) for 60 min. Three experiments were performed in order to: (1) define AA dose (0.1, 1 or 10 mg/kg, pre‐hypoxia i.p. injection), (2) test if repeated AA administrations (10 mg/kg at 3 time points: Pre‐hypoxia, 24 h and 48 h after HI) would improve the response and (3) investigate biochemical mechanisms involved in AA protection two days after HI.ResultsAA at a dose of 10 mg/kg applied before and after hypoxia, was the only treatment protocol that was able to improve HI‐induced memory deficits, to reduce tissue damage, to promote astrocytic survival in the hippocampus and to reduced extracellular release of S100B in the cerebrospinal fluid.ConclusionOverall, AA treatment showed beneficial effects on memory deficits, tissue damage, promoting astrocyte survival likely by reducing S100B release. Protection aided to astrocytes by AA treatment against HI lesion may lead to development of new therapeutic strategies that target these particular cells.