Spatiotemporal convergence of crime and vehicle crash hotspots: additional consideration for policing places - Carter JG, Piza EL.

Policing strategies that seek to simultaneously combat crime and vehicle crashes operate under the assumption that these two problems have a corollary relationship--an assumption that has received scant empirical attention and is the focus of the present s...
Source: SafetyLit - Category: International Medicine & Public Health Tags: Jurisprudence, Laws, Legislation, Policies, Rules Source Type: news

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Publication date: Available online 18 November 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Wang Luo, Haobin Dong, Jianmei Xu, Jian Ge, Huan Liu, Cheng ZhangAbstractMarine electromagnetic (EM) methods can be used for marine geophysical exploration. We proposed an all-solid-state porous Ag/AgCl electrode with high stability and a long service life as a marine electric field sensor with the ability to withstand deep sea high pressures while improving the accuracy of electric field measurements for long-period marine EM method engineering projects. Compared with a plate electrode, the all-solid-state porous electro...
Source: Sensors and Actuators A: Physical - Category: Physics Source Type: research
In conventional acoustic-resolution-based photoacoustic microscopy (ARPAM), a focused ultrasound transducer is placed coaxially with the ...
Source: Applied Optics - Category: Physics Authors: Source Type: research
Publication date: Available online 18 November 2019Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Mauricio Rodríguez Páez, Y. Ochoa-Muñoz, J.E. Rodriguez-PáezAbstractThough there may not be consensus regarding the toxicity of glyphosate, given the strong interest in its removal from water sources nanotechnology was used in this work to that end. Nanoparticles of zinc oxide (ZnO-NPs) were synthesized in a controlled manner by chemical route. The ZnO powders were then characterized by infrared and UV–Vis absorption spectroscopies, X-ray diffraction and scanning electron micros...
Source: Biocatalysis and Agricultural Biotechnology - Category: Biotechnology Source Type: research
This study presents the relationship between inputs of elements (especially biominerals), their recycling mechanisms and the average residence time of the major elements in mull humus.In forest ecosystems with generally low element inputs, decomposing leaf litter is an important source of soil nutrients. While the processes and the release speeds of elements, such as C, N and P, are well determined during litter degradation, less is known about elements like Fe, Al, Mg, Mn, Si, Ca, K, or Na, some of which are essential for tree nutrition.The objective of this study was to determine the average residence time of these eleme...
Source: Soil Biology and Biochemistry - Category: Biology Source Type: research
This study investigated the interrelation between plasma D-dimer level, ILT volume, AAA size and progression.Main methodsThis was a retrospective observational study that involved 181 patients with infra-renal AAA. They were divided into small and large AAA groups according to AAA diameter. 24 of them had repeated abdominal computed tomography angiography (CTA) scan and were divided into slow-growing and fast-growing AAA groups according to the median value of AAA growth rate. Baseline and follow-up plasma D-dimer level, maximum diameter of AAA, total infra-renal aortic volume and ILT volume were analyzed.Key findingsPlasm...
Source: Life Sciences - Category: Biology Source Type: research
Publication date: Available online 18 November 2019Source: PolymerAuthor(s): Guo Chen, Tengteng Shi, Xiaoguang Zhang, Fei Cheng, Xiaowen Wu, Guoqin Leng, Yangai Liu, Minghao Fang, Xin Min, Zhaohui HuangAbstractRecently, electrospinning has been widely applied to prepare phase-change material fibres. However, the practical applications of electrospinning are limited by its low productivity and potential safety hazards. Herein, a simple centrifugal spinning without the drawbacks of electrospinning was applied to fabricate polyethylene glycol-based PCM fibres with nano-SiC as a highly conductive filler, polyacrylonitrile as t...
Source: Polymer - Category: Chemistry Source Type: research
In this study, a series of graphene-supported Pt–Ni nanoparticles are successfully synthesized by a simple modified polyol method and used as electrocatalysts for methanol oxidation. In this method, graphene oxide is reduced to graphene and Pt–Ni alloy nanoparticles are deposited on graphene sheets simultaneously in ethylene glycol, which acts as a reducing agent. The electrocatalysts are physically characterized using X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), thermal gravimetric analysis (TGA), high-resolution transmission electron microscopy (HRTEM), and scanning electron microscopy...
Source: Journal of Electroanalytical Chemistry - Category: Chemistry Source Type: research
Publication date: Available online 18 November 2019Source: Colloids and Surfaces A: Physicochemical and Engineering AspectsAuthor(s): Changchao Zhan, Xiaohua Cao, Bingjie Xu, Ping Yan, Tao Yang, Zhigang Ye, Xiudong ChenAbstractVisible light induced molecularly imprinted titania modified with Dawson-type Co3P2W18O62·15H2O nanocomposites (CWMT), as a recycled visible light responsive photocatalysts, were prepared successfully by the method of impregnation, stepwise acidification and sol-gel using ethylparaben (EP) as the template. Various characterization techniques were employed for the study, including X-ray diffrac...
Source: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Category: Chemistry Source Type: research
Publication date: November 2019Source: Chinese Journal of Analytical Chemistry, Volume 47, Issue 11Author(s): Jia-Min CHEN, Jing ZENG, Zhen ZHANG, Abudu-Rexit ABULIKEMUAbstractA novel tetraphenylethylene-rhodamine-based fluorescent probe amide compound L was synthesized and its sensing properties of metal ions were investigated. It exhibited high sensitivity and high selectivity toward Fe3+ compared with other common metal ions in EtOH-H2O (50 μM, 3:2, V/V, pH 7.0). A fluorescence quenching ratio of 92% at 482 nm and 254-fold enhancement of fluorescence intensity at 582 nm were achieved upon the addition of 4.0 equiv. F...
Source: Chinese Journal of Analytical Chemistry - Category: Chemistry Source Type: research
Publication date: November 2019Source: Chinese Journal of Analytical Chemistry, Volume 47, Issue 11Author(s): Hui YU, Yan-Fei CHEN, Hui-Qin GUO, Wen-Tian MA, Jing LI, Shui-Gen ZHOU, Sen LIN, Liu-Shui YAN, Ke-Xin LIAbstractMolecularly imprinted carbon microspheres (MIC) were synthesized by one-pot hydrothermal method with perfluorooctane sulfonate (PFOS) as template, Camellia oleifera seed shell as carbon precursor and phloroglucinol as additive. The as-prepared PFOS-MIC was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), specific surface area and pore size distribution analyzer ...
Source: Chinese Journal of Analytical Chemistry - Category: Chemistry Source Type: research
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