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https://www.readbyqxmd.com/read/28544870/the-killing-of-kitty-genovese-what-else-does-this-case-tell-us
#1
Saul M Kassin
Well known in popular culture, the 1964 murder of Kitty Genovese in Queens, New York, became famous because not one of an alleged 38 bystanders called police until it was too late. Within psychology, this singular event inspired the study of bystander intervention. With the spotlight of history focused on Ms. Genovese and bystanders, other events, also profound for what they tell us about human social behavior, have escaped public notice. Based on archival records and current interviews, this article describes the three issues linked to Genovese...
May 2017: Perspectives on Psychological Science: a Journal of the Association for Psychological Science
https://www.readbyqxmd.com/read/28544461/semi-ipns-with-moisture-triggered-shape-memory-and-self-healing-properties
#2
Zhi-Chao Jiang, Yao-Yu Xiao, Yang Kang, Bang-Jing Li, Sheng Zhang
Moisture or water has the advantages of being green, inexpensive, and moderate. However, it is challenging to endow water-induced shape memory property and self-healing capability to one single polymer because of the conflicting structural requirement of the two types of materials. In this study, this problem is solved through introducing two kinds of supramolecular interactions into semi-interpenetrating polymer networks (semi-IPNs). The hydrogen bonds function as water-sensitive switches, making the materials show moisture-induced shape memory effect...
May 23, 2017: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/28543168/a-new-tool-to-tackle-the-opioid-epidemic-description-utility-and-results-from-the-maine-diversion-alert-program
#3
Brian J Piper, Clare E Desrosiers, Harriet C Fisher, Kenneth L McCall, Stephanie D Nichols
STUDY OBJECTIVE: The opioid epidemic continues to impact the United States, and new strategies are needed to combat this epidemic. The objective of this study was to analyze 2015 drug arrest data from Maine's Diversion Alert program (diversionalert. org), compare arrest data between the first quarters of 2015 and 2016, and provide an analysis of the sex differences in the arrests as well as information about DA use. STUDY DESIGN: A population-based, descriptive study using data from the Maine Diversion Alert Program...
May 19, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28541651/channel-crack-designed-gold-pu-sponge-for-highly-elastic-piezoresistive-sensor-with-excellent-detectability
#4
Yun-Hui Wu, Hai-Zhou Liu, Song Chen, Xuchu Dong, Ping-Ping Wang, Shuqi Liu, Yong Lin, Yong Wei, Lan Liu
It is a great challenge to fabricate piezoresistive sensors that possess high elasticity, large-area compliance and excellent detectability to satisfy both extremely tiny and large human activities monitoring. Herein, a novel and facile strategy is reported to manufacture highly elastic channel crack-based gold@PU sponge piezoresistive material. The elastic 3D conductive network is successfully prepared by gold ion sputtering, and channel cracks are skillfully designed on the 3D sponge skeletons. Such novel structure makes these fabricated sensors are capable of monitoring both tiny and large human motions, which originate from the nano-crack joint sensing mechanism and physical contact of conductive interconnected network...
May 25, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28538733/climate-science-cracking-the-palaeoclimate-code
#5
Stephen Meyers
No abstract text is available yet for this article.
May 24, 2017: Nature
https://www.readbyqxmd.com/read/28538471/foreign-body-response-to-silicone-in-cochlear-implant-electrodes-in-the-human
#6
Jennifer T O'Malley, Barbara J Burgess, Donald Galler, Joseph B Nadol
HYPOTHESIS: Silicone as part of a cochlear implant electrode may be responsible for a foreign body response in the human. BACKGROUND: Clinical evidence of a foreign body response to a cochlear implant has been reported. In a previous study, particulate material found within the fibrous sheath and within macrophages surrounding a cochlear implant has been identified as being consistent with platinum. However, to date, there has been no histologic evidence of a role for silicone in this cellular immune response...
May 22, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28537699/nutcracker-syndrome-how-are-we-cracking-the-nuts-and-whose-nuts-are-we-cracking
#7
Fernando Korkes
No abstract text is available yet for this article.
May 23, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28535686/development-and-characterization-of-a-stable-adhesive-bond-between-a-poly-dimethylsiloxane-catheter-material-and-a-bacterial-biofilm-resistant-acrylate-polymer-coating
#8
Bonnie J Tyler, Andrew Hook, Andreas Pelster, Paul Williams, Morgan Alexander, Heinrich F Arlinghaus
Catheter associated urinary tract infections are the most common health related infections worldwide, contributing significantly to patient morbidity and mortality and increased health care costs. To reduce the incidence of these infections, new materials that resist bacterial biofilm formation are needed. A composite catheter material, consisting of bulk poly(dimethylsiloxane) (PDMS) coated with a novel bacterial biofilm resistant polyacrylate [ethylene glycol dicyclopentenyl ether acrylate (EGDPEA)-co-di(ethyleneglycol) methyl ether methacrylate (DEGMA)], has been proposed...
May 23, 2017: Biointerphases
https://www.readbyqxmd.com/read/28535456/effectiveness-of-treatment-for-opioid-use-disorder-a-national-five-year-prospective-observational-study-in-england
#9
Brian Eastwood, John Strang, John Marsden
BACKGROUND: This the first 5-year effectiveness study of publicly funded treatment for opioid use disorder (OUD) in England. METHODS: All adults initiating treatment in 2008/09 in all 149 local treatment systems reporting to the National Drug Treatment Monitoring System (n=54,347). Admission polydrug use sub-populations were identified by Latent Class Analysis. The treatment outcome measure was 'successful completion and no re-presentation within six months' (SCNR) analysed by multilevel, multivariable logistic regression and funnel plots to contrast outcome by treatment system...
May 16, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28535132/granulomatous-inflammatory-response-to-a-microchip-implanted-in-a-dog-for-eight-years
#10
Claire Legallet, Kelley Thieman Mankin, Kathy Spaulding, Joanne Mansell
An 8 yr old neutered male springer spaniel dog was referred to Texas A&M University, College of Veterinary Medicine for a large, firm, fixed mass, located in the dorsal cervical tissue. The dog was otherwise healthy and had undergone microchip implantation approximately 8 yr prior. Radiographs, ultrasound, and microchip scanner confirmed the presence of a microchip within the mass. The microchip and associated mass were surgically excised, and histopathologic examination revealed granulomatous inflammation surrounding a cracked microchip...
May 23, 2017: Journal of the American Animal Hospital Association
https://www.readbyqxmd.com/read/28534501/electronic-evidence-of-temperature-induced-lifshitz-transition-and-topological-nature-in-zrte5
#11
Yan Zhang, Chenlu Wang, Li Yu, Guodong Liu, Aiji Liang, Jianwei Huang, Simin Nie, Xuan Sun, Yuxiao Zhang, Bing Shen, Jing Liu, Hongming Weng, Lingxiao Zhao, Genfu Chen, Xiaowen Jia, Cheng Hu, Ying Ding, Wenjuan Zhao, Qiang Gao, Cong Li, Shaolong He, Lin Zhao, Fengfeng Zhang, Shenjin Zhang, Feng Yang, Zhimin Wang, Qinjun Peng, Xi Dai, Zhong Fang, Zuyan Xu, Chuangtian Chen, X J Zhou
The topological materials have attracted much attention for their unique electronic structure and peculiar physical properties. ZrTe5 has host a long-standing puzzle on its anomalous transport properties manifested by its unusual resistivity peak and the reversal of the charge carrier type. It is also predicted that single-layer ZrTe5 is a two-dimensional topological insulator and there is possibly a topological phase transition in bulk ZrTe5. Here we report high-resolution laser-based angle-resolved photoemission measurements on the electronic structure and its detailed temperature evolution of ZrTe5...
May 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28533015/in%C3%A2-vitro-comparison-of-the-load-bearing-capacity-of-ceramic-and-metal-ceramic-resin-bonded-fixed-dental-prostheses-in-the-posterior-region
#12
Wolfgang Bömicke, Moritz Waldecker, Johannes Krisam, Peter Rammelsberg, Stefan Rues
STATEMENT OF PROBLEM: The clinical use of ceramic resin-bonded fixed dental prostheses (RBFDPs) in the posterior region is desirable for esthetic and biological reasons but has been associated with many technical problems, including fractures or chipping of the veneer. Although these problems may be overcome by using monolithic zirconia, information is lacking about the load-bearing capacity of resin-bonded monolithic zirconia restorations for replacing a molar. PURPOSE: The purpose of this in vitro study was to compare the load-bearing capacity (Fu), the load at initial damage (F1d), and the failure pattern of posterior RBFDPs fabricated from monolithic zirconia (MZr), veneered zirconia (VZr), and veneered cobalt-chromium (VCo)...
May 20, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28532942/robot-assisted-simulated-cataract-surgery
#13
Tristan Bourcier, Jimmy Chammas, Pierre-Henri Becmeur, Arnaud Sauer, David Gaucher, Philippe Liverneaux, Jacques Marescaux, Didier Mutter
PURPOSE: To evaluate the feasibility of robot-assisted simulated cataract surgery. SETTING: Institut de Recherche Contre les Cancers de l'Appareil Digestif, European Institute of Telesurgery, and Strasbourg University Hospital, Strasbourg, France. DESIGN: Experimental study. METHODS: Cataract surgeries were performed on a Kitaro cataract wet-lab training system simultaneously using the Da Vinci Xi robotic surgical system and the Whitestar Signature phacoemulsification system...
April 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28532043/microarc-oxidation-discharge-types-and-bio-properties-of-the-coating-synthesized-on-zirconium
#14
Sezgin Cengiz, Yunus Azakli, Mehmet Tarakci, Lia Stanciu, Yucel Gencer
This study is an attempt for gaining a better understanding on relationship between microarc oxidation (MAO) coating discharge types and bioactivity of an oxide-based coating synthesized on a Zr substrate. The discharge types and the coating growth mechanism were identified by the examination of the real cross-section image of the coating microstructure. The coating was conducted by using MAO in an electrolyte containing Na2SiO3, Ca(CH3COO)2 and C3H7Na2O6P, for different durations of 2.5, 5, 15, and 30mins...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532016/electrochemical-preparation-of-two-nanostructured-poly-sulfosalicylic-acid-films-with-different-morphologies-and-properties-for-selective-sensing-of-dopamine-comparative-study
#15
Juan Zhang, Jun-Ping Zhou, Xiao-Hui Dai, Guang-Zhou Liu, Shu-Yong Zhang
Two nanostructured poly(sulfosalicylic acid) (PSA) films were synthesized from room temperature ionic liquid (RTIL) or aqueous solution on a glassy carbon electrode (GCE) via potentiodynamic electropolymerization. The morphology and properties of the PSA films were characterized with scanning electron microscopy (SEM), scanning probe microscopy (SPM), electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). It was found that solvent had a major influence on the morphology and electrochemical properties of the resultant PSA films...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531989/mechanical-behaviour-of-biodegradable-az31-magnesium-alloy-after-long-term-in-vitro-degradation
#16
Isaiah Adekanmbi, Christopher Z Mosher, Helen H Lu, Mathis Riehle, Haytham Kubba, K Elizabeth Tanner
Biodegradable magnesium alloys including AZ31 are exciting candidates for temporary implants as they eliminate the requirement for surgical removal, yet have higher mechanical properties than degradable polymers. However, the very long term mechanical properties and degradation of these alloys have not been fully characterized. The tensile, bending and corrosion behaviour of biodegradable AZ31 Mg alloy specimens have been investigated for up to 9months in vitro in phosphate buffered saline (PBS). Small AZ31 Mg specimens showed a significant drop in bend yield strength and modulus after 3months in vitro degradation and an average mass loss of 6...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531971/graphene-oxide-versus-graphene-for-optimisation-of-pmma-bone-cement-for-orthopaedic-applications
#17
E Paz, F Forriol, J C Del Real, N Dunne
Graphene (G) and graphene oxide (GO) nano-sized powders with loadings ranging from 0.1 to 1.0wt% were investigated as reinforced agents for polymethyl methacrylate (PMMA) bone cements. The mechanical properties (i.e. bend strength, bend modulus, compression strength, fracture toughness and fatigue performance) and the thermal properties (i.e. maximum temperature, setting time, curing heat and residual monomer) of the resultant nanocomposites were characterised. The mechanical performance of G-PMMA and GO-PMMA bone cements has been improved at low loadings (≤0...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531769/increases-in-prescription-opioid-injection-abuse-among-treatment-admissions-in-the-united-states-2004-2013
#18
Christopher M Jones, Aleta Christensen, R Matthew Gladden
BACKGROUND: The 2015 HIV outbreak in Indiana associated with prescription opioid injection coupled with rising rates of hepatitis C, especially in areas with long-standing opioid abuse, have raised concerns about prescription opioid injection. However, research on this topic is limited. We assessed trends in treatment admissions reporting injection, smoking, and inhalation abuse of prescription opioids and examined characteristics associated with non-oral routes of prescription opioid abuse in the U...
May 16, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28531176/stigma-of-addiction-and-mental-illness-in-healthcare-the-case-of-patients-experiences-in-dental-settings
#19
Mario A Brondani, Rana Alan, Leeann Donnelly
OBJECTIVE: To explore the ways in which stigma is experienced in healthcare and dental settings by patients with a history of addiction and mental illness. METHODS: Audio-recorded, semi-structured interviews with a purposefully selected convenience sample of residents from two community treatment centres in Vancouver, Canada were conducted. The interview guide contained questions about experiences while seeking health and dental care and was based on an existing framework of labeling, stereotyping, exclusion, discrimination, and power imbalance...
2017: PloS One
https://www.readbyqxmd.com/read/28530390/highly-sensitive-durable-and-multifunctional-sensor-inspired-by-spider
#20
Chengzhi Luo, Junji Jia, Youning Gong, Zhongchi Wang, Qiang Fu, Chunxu Pan
Sensitivity, durability, and multifunction are the essential requirements for a high- performance wearable sensor. Here, we report a novel multifunctional sensor with high sensitivity and durability by using a buckled spider silk-like single-walled carbon nanotubes (SSL-SWNTs) film as the conducting network and a crack-shaped Au film as the sensitive transducer. Its high sensitivity is inspired by the crack-shaped structure of the spider's slit organs, while the high durability is inspired by the mechanical robustness of the spider silk...
May 22, 2017: ACS Applied Materials & Interfaces
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