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https://www.readbyqxmd.com/read/28430155/dynamic-construction-scheme-for-virtualization-security-service-in-software-defined-networks
#1
Zhaowen Lin, Dan Tao, Zhenji Wang
For a Software Defined Network (SDN), security is an important factor affecting its large-scale deployment. The existing security solutions for SDN mainly focus on the controller itself, which has to handle all the security protection tasks by using the programmability of the network. This will undoubtedly involve a heavy burden for the controller. More devastatingly, once the controller itself is attacked, the entire network will be paralyzed. Motivated by this, this paper proposes a novel security protection architecture for SDN...
April 21, 2017: Sensors
https://www.readbyqxmd.com/read/28427364/national-alcohol-survey-of-households-in-trinidad-and-tobago-nashtt-alcohol-use-in-households
#2
R G Maharaj, M S Motilal, T Babwah, P Nunes, R Brathwaite, G Legall, S D Reid, M E Canavan, E H Bradley
BACKGROUND: To determine the patterns of alcohol use among households in Trinidad and Tobago (T&T) and to estimate the association between alcohol use and negative psychological, social, or physical events experienced by the household. METHODS: A convenience sample of 1837 households across T&T. We identified bivariate correlates of alcohol use, and heavy episodic drinking using chi-square and t-test analyses and used multivariable logistic regression to estimate adjusted associations between household alcohol use and experiences within the past 12 months adjusted for sociodemographic covariates...
April 20, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28425095/psychomotor-tremor-and-proprioceptive-control-problems-in-current-and-former-stimulant-drug-users-an-accelerometer-study-of-heavy-users-of-amphetamine-mdma-and-other-recreational-stimulants
#3
Luke A Downey, Brenda Tysse, Talitha C Ford, Angela C Samuels, Rory P Wilson, Andrew C Parrott
The recreational use of various stimulant drugs has been implicated in the development of movement disorders through dysregulation of the dopaminergic and serotoninergic neurotransmitter systems. The present study investigated psychomotor differences in current and former recreational stimulant drug users compared with nonusing controls. Sixty participants comprised 3 groups: 20 current stimulant drug users (CSUs; 11 men, aged 31.4 ± 9.1 years), 20 former stimulant drug users (FSUs; 5 men, aged 39.1 ± 8.5 years), and 20 nonuser controls (NUCs; 5 men, aged 35...
April 19, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28422803/marijuana-use-and-self-reported-quality-of-eyesight
#4
Obinna F Akano
PURPOSE: There is increasing use of marijuana among young adults and more states in the United States are legalizing medical marijuana use. A number of studies have revealed both the beneficial and harmful effects of marijuana to the human system. Despite some beneficial effects, studies have shown marijuana to have a lot of deleterious effects on the visual system, which subsequently reduces the quality of eyesight. The aim of this study was to investigate if heavy marijuana smoking is associated with a poor quality of eyesight compared with light/no use of marijuana...
May 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28422460/an-evaluation-of-plaque-and-gingivitis-reduction-following-home-use-of-sonicare-flexcare-platinum-with-premium-plaque-control-brush-head-and-a-manual-toothbrush
#5
Wendy Jenkins, Sonia Souza, Marilyn Ward, Jodi Defenbaugh, Kimberly R Milleman, Jeffery L Milleman
OBJECTIVES: To assess the effect of the Philips Sonicare FlexCare Platinum with Premium plaque control brush head on gingival inflammation, bleeding, and supragingival plaque reduction following a six-week period of home use compared to a manual toothbrush. METHODS: This was a randomized, single-blind, parallel-design clinical trial. Subjects included in the study were routine manual toothbrush users who were generally healthy non-smokers, aged 18-65 years, with mild to moderate gingivitis...
March 2017: Journal of Clinical Dentistry
https://www.readbyqxmd.com/read/28419776/the-involuntary-nature-of-binge-drinking-goal-directedness-and-awareness-of-intention
#6
Nuria Doñamayor, Daniela Strelchuk, Kwangyeol Baek, Paula Banca, Valerie Voon
Binge drinking represents a public health issue and is a known risk factor in the development of alcohol use disorders. Previous studies have shown behavioural as well as neuroanatomical alterations associated with binge drinking. Here, we address the question of the automaticity or involuntary nature of the behaviour by assessing goal-directed behaviour and intentionality. In this study, we used a computational two-step task, designed to discern between model-based/goal-directed and model-free/habitual behaviours, and the classic Libet clock task, to study intention awareness, in a sample of 31 severe binge drinkers (BD) and 35 matched healthy volunteers...
April 16, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28415281/stochastic-dynamics-and-the-predictability-of-big-hits-in-online-videos
#7
José M Miotto, Holger Kantz, Eduardo G Altmann
The competition for the attention of users is a central element of the Internet. Crucial issues are the origin and predictability of big hits, the few items that capture a big portion of the total attention. We address these issues analyzing 10^{6} time series of videos' views from YouTube. We find that the average gain of views is linearly proportional to the number of views a video already has, in agreement with usual rich-get-richer mechanisms and Gibrat's law, but this fails to explain the prevalence of big hits...
March 2017: Physical Review. E
https://www.readbyqxmd.com/read/28403655/prevalence-mortality-and-health-care-use-among-patients-with-cluster-b-personality-disorders-clinically-diagnosed-in-quebec
#8
Lionel Cailhol, Éric Pelletier, Louis Rochette, Lise Laporte, Pierre David, Évens Villeneuve, Joel Paris, Alain Lesage
BACKGROUND: Cluster B personality disorders (PDs) are prevalent mental health conditions in the general population (1%-6% depending on the subtype and study). Affected patients are known to be heavier users of both mental and medical health care systems than patients with other clinical conditions such as depression. METHODS: Several rates were estimated using data from the integrated monitoring system for chronic diseases in the province of Quebec, Canada. It provides a profile of annual and period prevalence rates, mortality rates, and years of lost life as well as health care utilisation rates for Quebec residents...
January 1, 2017: Canadian Journal of Psychiatry. Revue Canadienne de Psychiatrie
https://www.readbyqxmd.com/read/28372563/short-message-service-sms-based-intervention-targeting-alcohol-consumption-among-university-students-study-protocol-of-a-randomized-controlled-trial
#9
Kristin Thomas, Marcus Bendtsen, Catharina Linderoth, Nadine Karlsson, Preben Bendtsen, Ulrika Müssener
BACKGROUND: Despite significant health risks, heavy drinking of alcohol among university students is a widespread problem; excessive drinking is part of the social norm. A growing number of studies indicate that short message service (SMS)-based interventions are cost-effective, accessible, require limited effort by users, and can enable continuous, real-time, brief support in real-world settings. Although there is emerging evidence for the effect of SMS-based interventions in reducing alcohol consumption, more research is needed...
April 4, 2017: Trials
https://www.readbyqxmd.com/read/28363929/tobacco-and-alcohol-use-among-drug-users-receiving-methadone-maintenance-treatment-a-cross-sectional-study-in-a-rural-prefecture-of-yunnan-province-southwest-china
#10
Song Duan, Ziyi Jin, Xing Liu, Yuecheng Yang, Runhua Ye, Renhai Tang, Meiyang Gao, Yingying Ding, Na He
OBJECTIVE: To estimate the prevalence of ever, current and heavy tobacco and alcohol use and their correlates among patients undergoing methadone maintenance treatment (MMT). DESIGN: Cross-sectional study. SETTING: The study was conducted in all of the 5 MMT clinics in Dehong Prefecture, China. PARTICIPANTS: 2121 (81.6%) eligible MMT participants were included in the study population. ANALYSIS: Ordinal logistic regression was used to estimate the ORs and their 95% CIs...
March 30, 2017: BMJ Open
https://www.readbyqxmd.com/read/28351203/effects-of-varenicline-on-alcohol-self-administration-and-craving-in-drinkers-with-depressive-symptoms
#11
Walter Roberts, Terril L Verplaetse, Kelly Moore, Lindsay Oberleitner, Marina R Picciotto, Sherry A McKee
Varenicline (VAR) is approved to aid in smoking cessation and has been shown to be effective for reducing alcohol consumption in heavy drinkers. Little is known, however, about treatment moderators that may influence efficacy. The current study reanalyzed data from a human laboratory study (Verplaetse et al., 2016) to determine whether VAR was more effective at reducing alcohol use among drinkers reporting symptoms of depression. Participants were 60 adults meeting DSM-IV criteria for alcohol use disorders ( n = 60) who were randomly assigned to receive VAR (1 mg/day, 2 mg/day) or placebo...
March 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28350511/design-construction-and-evaluation-of-sensor-lock-an-electromechanical-stance-control-knee-joint
#12
Mokhtar Arazpour, Monireh Ahmadi Bani, Mina Baniasad, Mohammad Samadian, Navid Golchin
BACKGROUND AND AIM: Most currently-available stance control knee ankle foot orthoses (SCKAFOs) still need full knee extension to lock the knee joint, and they are still noisy, bulky, and heavy. Therefore, the aim of this study was to design, construct, and evaluate an original electromechanical SCKAFO knee joint that could feasibly solve these problems, and thus address the problems of current stance control knee joints with regards to their structure, function, cosmesis, and cost. METHOD: Ten able-bodied (AB) participants and two (knee ankle foot orthosis) KAFO users were recruited to participate in the study...
March 28, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28348549/a-comparative-analysis-of-the-lyve-set-phylogenomics-pipeline-for-genomic-epidemiology-of-foodborne-pathogens
#13
Lee S Katz, Taylor Griswold, Amanda J Williams-Newkirk, Darlene Wagner, Aaron Petkau, Cameron Sieffert, Gary Van Domselaar, Xiangyu Deng, Heather A Carleton
Modern epidemiology of foodborne bacterial pathogens in industrialized countries relies increasingly on whole genome sequencing (WGS) techniques. As opposed to profiling techniques such as pulsed-field gel electrophoresis, WGS requires a variety of computational methods. Since 2013, United States agencies responsible for food safety including the CDC, FDA, and USDA, have been performing whole-genome sequencing (WGS) on all Listeria monocytogenes found in clinical, food, and environmental samples. Each year, more genomes of other foodborne pathogens such as Escherichia coli, Campylobacter jejuni, and Salmonella enterica are being sequenced...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28342142/smoking-prevalence-among-users-of-primary-healthcare-units-in-brazil-the-role-of-religiosity
#14
Edson Zangiacomi Martinez, Flávia Masili Giglio, Natalia Akemi Yamada Terada, Anderson Soares da Silva, Miriane Lucindo Zucoloto
The objective of this cross-sectional study is to examine the association between religious involvement and tobacco use in a large representative sample of users of primary healthcare units of Ribeirão Preto, Southeast Brazil. Current and past smoking habits were determined among 1055 users of primary healthcare units. Participants' religiosity was measured using the DUREL questionnaire. The prevalence of smoking among men was 16.8% [95% confidence interval (CI) 12.0-22.5] and among women was 12.6% (95% CI 10...
March 24, 2017: Journal of Religion and Health
https://www.readbyqxmd.com/read/28340464/a-review-on-various-electrochemical-techniques-for-heavy-metal-ions-detection-with-different-sensing-platforms
#15
REVIEW
BabanKumar Bansod, Tejinder Kumar, Ritula Thakur, Shakshi Rana, Inderbir Singh
Heavy metal ions are non-biodegradable and contaminate most of the natural resources occurring in the environment including water. Some of the heavy metals including Lead (Pb), Mercury (Hg), Arsenic (As), Chromium (Cr) and Cadmium (Cd) are considered to be highly toxic and hazardous to human health even at trace levels. This leads to the requirement of fast, accurate and reliable techniques for the detection of heavy metal ions. This review presents various electrochemical detection techniques for heavy metal ions those are user friendly, low cost, provides on-site and real time monitoring as compared to other spectroscopic and optical techniques...
March 18, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28325704/the-efficiency-of-home-composting-programmes-and-compost-quality
#16
M A Vázquez, M Soto
The efficiency of home composting programmes and the quality of the produced compost was evaluated in eight rural areas carrying out home composting programmes (up to 880 composting bins) for all household biowaste including meat and fish leftovers. Efficiency was analysed in terms of reduction of organic waste collected by the municipal services. An efficiency of 77% on average was obtained, corresponding to a composting rate of 126kg/person·year of biowaste (or 380kg/composter·year). Compost quality was determined for a total of 90 composting bins...
March 18, 2017: Waste Management
https://www.readbyqxmd.com/read/28325681/alcohol-cannabis-and-other-drugs-and-subsequent-suicide-ideation-and-attempt-among-young-mexicans
#17
Guilherme Borges, Corina Benjet, Ricardo Orozco, Maria-Elena Medina-Mora, David Menendez
OBJECTIVE: To report results from a follow-up study of alcohol, cannabis and other drugs on suicidal behavior. METHOD: We estimated prospective associations of substance use as a risk factor for incident suicide ideation and attempt, from a follow-up conducted in 2013 (n = 1071) of the original Mexican Adolescent Mental Health Survey conducted in 2005. RESULTS: Cannabis use before age 15 (ideation risk ratio (RR) = 3.97; 95% confidence interval (CI) = 1...
March 1, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28325018/imquant-an-image-based-fluorescence-reader-for-quantitative-lateral-flow-immunoassays
#18
Kaushik Basak Chowdhury, Jayaraj Joseph, Jayaraman Kiruthi Vasan, Mohanasankar Sivaprakasam
Fluorescence immunoassays (FIA) have strong potential in enabling rapid quantitative immunological testing at point of care. Existing state of the art instruments employ laser scanning of FIA test kits, which require the use of electromechanical systems, making the instrument bulky, heavy and less reliable in the long term. There is a growing need for an extremely compact and reliable, motion-free, automated reader for accurate quantification of immunoassays. Here, we present ImQuant, an image based FIA reader with integrated monochromatic excitation source, optical filtering and real time image capture, assisted with an intuitive graphical user interface...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28322241/leisure-time-physical-activity-among-older-adults-with-long-term-spinal-cord-injury
#19
S Jörgensen, K A Martin Ginis, J Lexell
STUDY DESIGN: Cross-sectional. OBJECTIVES: To describe participation in leisure time physical activity (LTPA) (amount, intensity and type) among older adults with long-term spinal cord injury (SCI), and to investigate the associations with sociodemographics, injury characteristics and secondary health conditions (SHCs). SETTING: Home settings in southern Sweden. METHODS: Data from the Swedish Aging with Spinal Cord Injury Study (SASCIS)...
March 21, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28318754/differences-between-men-and-women-in-substance-use-the-role-of-educational-level-and-employment-status
#20
Ester Teixidó-Compañó, Albert Espelt, Luis Sordo, María J Bravo, Ana Sarasa-Renedo, B Iciar Indave, Marina Bosque-Prous, M Teresa Brugal
OBJECTIVE: To determine differences between men and women in hazardous drinking, heavy cannabis use and hypnosedative use according to educational level and employment status in the economically active population in Spain. METHOD: Cross-sectional study with data from 2013 Spanish Household Survey on Alcohol and Drugs on individuals aged 25-64 [n=14,113 (women=6,171; men=7,942)]. Dependent variables were hazardous drinking, heavy cannabis use and hypnosedative consumption; the main independent variables were educational level and employment situation...
March 15, 2017: Gaceta Sanitaria
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