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https://www.readbyqxmd.com/read/28107541/recent-themes-in-social-networking-service-research
#1
John S Liu, Mei Hsiu-Ching Ho, Louis Y Y Lu
The body of literature addressing the phenomenon related to social networking services (SNSs) has grown rather fast recently. Through a systematic and quantitative approach, this study identifies the recent SNS research themes, which are the issues discussed by a coherent and growing subset of this literature. A set of academic articles retrieved from the Web of Science database is used as the basis for uncovering the recent themes. We begin the analysis by constructing a citation network which is further separated into groups after applying a widely used clustering method...
2017: PloS One
https://www.readbyqxmd.com/read/28106983/two-dimensional-sns-a-phosphorene-analogue-with-strong-in-plane-electronic-anisotropy
#2
Zhen Tian, Chenglei Guo, Mingxing Zhao, Ranran Li, Jiamin Xue
We study the anisotropic electronic properties of two-dimensional (2D) SnS, an analogue of phosphorene, grown by physical vapor transport. With transmission electron microscope and polarized Raman spectroscopy, we identify the zigzag and armchair directions of the as-grown 2D crystals. 2D SnS field-effect transistors with a cross-Hall-bar structure are fabricated. They show heavily hole-doped (~10(19) cm(-3)) conductivity with strong in-plane anisotropy. At room temperature the mobility along the zigzag direction exceeds 20 cm(2)V(-1)s(-1), which can be up to 1...
January 20, 2017: ACS Nano
https://www.readbyqxmd.com/read/28105394/piezo-phototronic-effect-enhanced-flexible-solar-cells-based-on-n-zno-p-sns-core-shell-nanowire-array
#3
Laipan Zhu, Longfei Wang, Fei Xue, Libo Chen, Jianqiang Fu, Xiaolong Feng, Tianfeng Li, Zhong Lin Wang
The piezo-phototronic effect is about the enhanced separation, transport, and recombination of the photogenerated carriers using the piezoelectric polarization charges present in piezoelectric-semiconductor materials. Here, it is presented that the piezo-phototronic effect can be effectively applied to improve the relative conversion efficiency of a flexible solar cell based on n-ZnO/p-SnS core-shell nanowire array for 37.3% under a moderate vertical pressure. The performance of the solar cell can be effectively enhanced by a gentle bending of the device, showing its potential for application in curly geometries...
January 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/28103758/quality-of-life-at-home-and-satisfaction-of-patients-after-enhanced-recovery-protocol-for-colorectal-surgery
#4
Aurélien Partoune, Carla Coimbra, Jean-François Brichant, Jean Joris
BACKGROUND: Quality of life of patients at home after an enhanced recovery protocol (ERP) for surgery has been least studied especially in elderly patients. METHODS: Our first 41 patients entered in the colorectal GRACE database were interviewed through telephone about their postoperative stress, fatigue, pain, difficulty in feeding, home autonomy, and satisfaction. We compared the responses of the elderly patients (>70 years, n = 19) with those of the younger patients...
January 20, 2017: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/28094828/highly-sensitive-and-fast-monolayer-ws2-phototransistors-realized-by-sns-nanosheet-decoration
#5
Zhiyan Jia, Songlin Li, Jianyong Xiang, Fusheng Wen, Xuan Bao, Shanghuai Feng, Ruilong Yang, Zhongyuan Liu
Two-dimensional chalcogenide monolayers are strong candidates for next-generation flexible and transparent optoelectronics. Due to the intrinsic ultrathin thickness and limited optical absorption, however, their responsivity is normally low. Here we develop a simple and low-cost method to fabricate high-performance hybrid phototransistors of monolayer WS2 with significantly enhanced responsivity and an extended spectral response range, by virtue of surface decoration with liquid-phase exfoliated SnS nanosheets (NSs)...
January 17, 2017: Nanoscale
https://www.readbyqxmd.com/read/28093827/trajectories-of-sleep-and-cardiac-sympathetic-activity-indexed-by-pre-ejection-period-in-childhood
#6
Mona El-Sheikh, J Benjamin Hinnant, Lauren E Philbrook
Fragmented and insufficient sleep has been implicated in disrupted autonomic nervous system activity during resting state conditions in typically developing children. Towards explication of these relations over development, the current study tested reciprocal relations between the development of sleep parameters (efficiency, duration, latency) and cardiac sympathetic nervous system (SNS) activity indexed by pre-ejection period (PEP) during waking-resting state conditions throughout middle and late childhood...
January 17, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28093054/impact-of-psychological-stress-on-pain-perception-in-an-animal-model-of-endometriosis
#7
Siomara Hernandez, Myrella L Cruz, Inevy I Seguinot, Annelyn Torres-Reveron, Caroline B Appleyard
PURPOSE: Pain in patients with endometriosis is considered a significant source of stress but does not always correlate with severity of the condition. We have demonstrated that stress can worsen endometriosis in an animal model. Here, we tested the impact of a psychological stress protocol on pain thresholds and pain receptors. METHODS: Endometriosis was induced in female rats by suturing uterine horn tissue next to the intestinal mesentery. Sham rats had sutures only...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28092437/3d-porous-nanoarchitectures-derived-from-sns-s-doped-graphene-hybrid-nanosheets-for-flexible-all-solid-state-supercapacitors
#8
Chunyan Liu, Shulin Zhao, Yanan Lu, Yingxue Chang, Dongdong Xu, Qi Wang, Zhihui Dai, Jianchun Bao, Min Han
3D porous nanoarchitectures derived from SnS/S-doped graphene hybrid nanosheets are successfully prepared by controllable thermal conversion of oleylamine-capped mixed-phase SnS2 -SnS nanodisks precursors, and employed as electroactive material to fabricate flexible, symmetric, all-solid-state supercapacitors. The fabricated solid devices exhibit very high areal specific capacitance (2.98 mF cm(-2) ), good cycling stability (99% for 10 000 cycles), excellent flexibility, and desirable mechanical stability.
January 16, 2017: Small
https://www.readbyqxmd.com/read/28092186/under-the-influence-of-facebook-excess-use-of-social-networking-sites-and-drinking-motives-consequences-and-attitudes-in-college-students
#9
Julia M Hormes
Background and aims Excessive use of social networking sites (SNS) has recently been conceptualized as a behavioral addiction (i.e., "disordered SNS use") using key criteria for the diagnosis of substance dependence and shown to be associated with a variety of impairments in psychosocial functioning, including an increased risk of problem drinking. This study sought to characterize associations between "disordered SNS use" and attitudes towards alcohol, drinking motives, and adverse consequences resulting from alcohol use in young adults...
March 2016: Journal of Behavioral Addictions
https://www.readbyqxmd.com/read/28070919/clinical-utility-of-the-basophil-activation-test-for-analysis-of-allergic-transfusion-reactions-a-pilot-study
#10
I Okamura, N Matsuyama, K Yasui, F Hirayama, T Ikeda
BACKGROUND AND OBJECTIVES: In previous studies, we demonstrated that the basophil-activating effects of supernatants found in residual-transfused platelet concentrates (PC-SNs) on whole blood basophils in cases of allergic transfusion reactions (ATRs) could be assessed by the basophil activation test (BAT) in terms of allergen/IgE dependency. However, in these studies, the basophils were derived from third-party healthy volunteers. In this study, we performed BAT using patients' own blood basophils to analyse ATRs...
January 10, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28069228/cu-sns-sno2-nanoparticles-as-novel-sorbent-for-dispersive-micro-solid-phase-extraction-of-atorvastatin-in-human-plasma-and-urine-samples-by-high-performance-liquid-chromatography-with-uv-detection-application-of-central-composite-design-ccd
#11
Mehdi Dastkhoon, Mehrorang Ghaedi, Arash Asfaram, Maryam Arabi, Abbas Ostovan, Alireza Goudarzi
Separation and detection of residual drug in biological fluids has directly related to human health in term of their beneficial or side effects. In biological fluid samples (complex matrix which containing drug at very low level) conduction of preliminary efficient technique as good choice for pre-concentration and clean-up of real sample before their instrumental analysis is highly recommended. In this result technique, based on nano-structure material which poses higher available surface area and larger member of reactive sites led to significant improvement in characteristic performance of analytical method...
May 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28054256/salivary-alpha-amylase-not-chromogranin-a-reflects-sympathetic-activity-exercise-responses-in-elite-male-wheelchair-athletes-with-or-without-cervical-spinal-cord-injury
#12
Christof A Leicht, Thomas A W Paulson, Victoria L Goosey-Tolfrey, Nicolette C Bishop
BACKGROUND: Salivary alpha amylase (sAA) and chromogranin A (sCgA) have both been suggested as non-invasive markers for sympathetic nervous system (SNS) activity. A complete cervical spinal cord injury leading to tetraplegia is accompanied with sympathetic dysfunction; the aim of this study was to establish the exercise response of these markers in this in vivo model. METHODS: Twenty-six elite male wheelchair athletes (C6-C7 tetraplegia: N = 8, T6-L1 paraplegia: N = 10 and non-spinal cord injured controls: N = 8) performed treadmill exercise to exhaustion...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28045243/three-dimensional-interconnected-spherical-graphene-framework-sns-nanocomposite-for-anode-material-with-superior-lithium-storage-performance-complete-reversibility-of-li2s
#13
Bing Zhao, Zhixuan Wang, Fang Chen, Yaqing Yang, Yang Gao, Lu Chen, Zheng Jiao, Lingli Cheng, Yong Jiang
Three-dimensional (3D) interconnected spherical graphene framework-decorated SnS nanoparticles (3D SnS@SG) is synthesized by self-assembly of graphene oxide nanosheets and positively charged polystyrene/SnO2 nanospheres, followed by a controllable in situ sulfidation reaction during calcination. The SnS nanoparticles with diameters of ∼10-30 nm are anchored to the surface of the spherical graphene wall tightly and uniformly. Benefiting from the 3D interconnected spherical graphene framework and subtle SnS nanoparticles, the generated Li2S could keep in close contact with Sn to make possible the in situ conversion reaction SnS + 2Li(+) + 2e(-) ↔ Sn + Li2S...
January 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28045033/tin-compensation-for-the-sns-based-optoelectronic-devices
#14
S F Wang, W Wang, W K Fong, Y Yu, C Surya
In this paper we report the growth of high quality SnS thin films with good crystallinity deposited on two-dimensional (2D) mica substrates. It is believed that the 2D nature of SnS, with strong intra-layer covalent bonds and weak inter-layer van der Waals interactions, is responsible for its relative insensitivity to lattice mismatch. We also investigated the reduction of Sn vacancies in the material using Sn-compensation technique during the material growth process. The experimental results clearly demonstrated substantial enhancements in the electrical and structural properties for films deposited using Sn-compensation technique...
January 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28035463/sacral-nerve-stimulation-for-faecal-incontinence-in-patients-with-sacral-malformation
#15
M Brunner, Z Cui, K E Matzel
INTRODUCTION: Sacral nerve stimulation (SNS) is a common and effective treatment for faecal incontinence (FI), but accessibility of the sacral nerves is mandatory. In some cases, electrode placement fails for unknown reasons. A frequent cause could be sacral malformations, which have a high incidence (up to 24.1%) and can be unsuspected. METHODS AND RESULTS: We report two patients with FI consequent to congenital anorectal malformation and associated sacral malformation...
December 30, 2016: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28033503/negative-consequences-from-heavy-social-networking-in-adolescents-the-mediating-role-of-fear-of-missing-out
#16
Ursula Oberst, Elisa Wegmann, Benjamin Stodt, Matthias Brand, Andrés Chamarro
Social networking sites (SNS) are especially attractive for adolescents, but it has also been shown that these users can suffer from negative psychological consequences when using these sites excessively. We analyze the role of fear of missing out (FOMO) and intensity of SNS use for explaining the link between psychopathological symptoms and negative consequences of SNS use via mobile devices. In an online survey, 1468 Spanish-speaking Latin-American social media users between 16 and 18 years old completed the Hospital Anxiety and Depression Scale (HADS), the Social Networking Intensity scale (SNI), the FOMO scale (FOMOs), and a questionnaire on negative consequences of using SNS via mobile device (CERM)...
December 26, 2016: Journal of Adolescence
https://www.readbyqxmd.com/read/28028840/pain-duration-is-associated-with-increased-muscle-sympathetic-nerve-activity-in-patients-with-achilles-tendinopathy
#17
J L Jewson, E A Lambert, S Docking, M Storr, G W Lambert, J E Gaida
Tendinopathy is a common condition, which has been linked to surrogate measures of sympathetic nervous system (SNS) activity and insulin resistance. This study aimed to compare in vivo measures of the SNS and insulin resistance between individuals with and without Achilles tendinopathy. This case-control study compared Achilles tendinopathy sufferers to healthy controls. SNS activity was quantified using muscle sympathetic nerve activity (MSNA), while metabolic status was assessed via a modified glucose tolerance test and fasting lipid panel...
December 28, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28024327/simple-synthesis-of-nanocrystalline-tin-sulfide-n-doped-reduced-graphene-oxide-composites-as-lithium-ion-battery-anodes
#18
Duck Hyun Youn, Shannon K Stauffer, Penghao Xiao, Hunmin Park, Yejin Nam, Andrei Dolocan, Graeme Henkelman, Adam Heller, C Buddie Mullins
Composites of nitrogen-doped reduced graphene oxide (NRGO) and nanocrystalline tin sulfides were synthesized, and their performance as lithium ion battery anodes was evaluated. Following the first cycle the composite consisted of Li2S/LixSn/NRGO. The conductive NRGO cushions the stress associated with the expansion of lithiation of Sn, and the noncycling Li2S increases the residual Coulombic capacity of the cycled anode because (a) Sn domains in the composite formed of unsupported SnS2 expand only by 63% while those in the composite formed of unsupported SnS expand by 91% and (b) Li percolates rapidly at the boundary between the Li2S and LixSn nanodomains...
December 27, 2016: ACS Nano
https://www.readbyqxmd.com/read/28002686/research-on-social-networking-sites-and-social-support-from-2004-to-2015-a-narrative-review-and-directions-for-future-research
#19
Jingbo Meng, Lourdes Martinez, Amanda Holmstrom, Minwoong Chung, Jeff Cox
The article presents a narrative review of scholarship on social support through social networking sites (SNSs) published from 2004 to 2015. By searching keywords related to social support and SNSs in major databases for social sciences, we identified and content analyzed directly relevant articles (N = 88). The article summarizes the prevalence of theory usage; the function of theory usage (e.g., testing a theory, developing a theory); major theories referenced; and methodologies, including research designs, measurement, and the roles of social support and SNS examined in this literature...
January 2017: Cyberpsychology, Behavior and Social Networking
https://www.readbyqxmd.com/read/27999935/laparoscopic-sentinel-node-navigation-surgery-for-early-gastric-cancer-a-prospective-multicenter-trial
#20
Naoto Takahashi, Hiroshi Nimura, Tetsuji Fujita, Norio Mitsumori, Norio Shiraishi, Seigo Kitano, Hitoshi Satodate, Katsuhiko Yanaga
BACKGROUND: Prospective multicenter trials have shown the feasibility of sentinel node (SN) navigation surgery using a dual tracer of dye and radioisotope for early gastric cancer. However, comparable trials using the indocyanine green (ICG) and the infrared ray laparoscopic system (IRLS) have not been reported. On the basis of our cohort studies, we assumed that the ICG imaging with the IRLS is as effective as the dual tracer in detecting SNs. Therefore, we conducted a prospective multicenter trial to assess the effectiveness and generalizability of the infrared ICG technique in patients with early gastric cancer...
December 20, 2016: Langenbeck's Archives of Surgery
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