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https://www.readbyqxmd.com/read/28208369/traffic-congestion-and-the-lifetime-of-networks-with-moving-nodes
#1
Xianxia Yang, Jie Li, Cunlai Pu, Meichen Yan, Rajput Ramiz Sharafat, Jian Yang, Konstantinos Gakis, Panos M Pardalos
For many power-limited networks, such as wireless sensor networks and mobile ad hoc networks, maximizing the network lifetime is the first concern in the related designing and maintaining activities. We study the network lifetime from the perspective of network science. In our model, nodes are initially assigned a fixed amount of energy moving in a square area and consume the energy when delivering packets. We obtain four different traffic regimes: no, slow, fast, and absolute congestion regimes, which are basically dependent on the packet generation rate...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28194081/excessive-sleepiness-sleep-hygiene-and-coping-strategies-among-night-bus-drivers-a-cross-sectional-study
#2
Uma Maheswari Krishnaswamy, Mamta S Chhabria, Aditi Rao
BACKGROUND: Sleep disruption and excessive sleepiness are the known consequences of shift work. The recent spate of night-time road and air accidents, with some being directly attributed to driver sleepiness prompted us to undertake this study. AIMS: To screen for excessive sleepiness, coping practices, and post-shift sleep hygiene in night bus drivers. SETTINGS AND DESIGN: This prospective study was carried out on night bus drivers of a public transport organization in Bengaluru, Karnataka, India...
May 2016: Indian Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28187234/the-research-and-implementation-continuum-of-biofortified-sweet-potato-and-maize-in-africa
#3
Sherry A Tanumihardjo, Anna-Marie Ball, Chisela Kaliwile, Kevin V Pixley
The enhancement of sweet potato and maize with provitamin A carotenoids has been part of HarvestPlus's research continuum since the formation of the biofortification project. This review includes case studies of biofortification strategies used for sweet potato in Uganda and orange maize in Zambia. The current status of the science and release of biofortified varieties was reviewed by three scientists who were part of the HarvestPlus program for more than a decade with input from a scientist who experienced orange maize dissemination in Zambia...
February 10, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28181859/consumer-perspectives-on-mhealth-for-weight-loss-a-review-of-qualitative-studies
#4
Lynnette N Lyzwinski, Liam J Caffery, Matthew Bambling, Sisira Edirippulige
Introduction With increasing development and use of mobile health (mHealth) interventions for weight loss in overweight and obese populations, it is timely to gain greater insight into consumer experience with these technologies. The aims of this review were to identify common themes across studies that included user preferences for mHealth intervention for weight loss. Methods The databases PubMed (Medline), CINAHL, Web of Science, and Embase were searched for relevant qualitative studies on mHealth for weight loss...
January 1, 2017: Journal of Telemedicine and Telecare
https://www.readbyqxmd.com/read/28178727/applying-ethical-and-legal-principles-to-new-technology-the-university-of-auckland-faculty-of-medical-and-health-sciences-policy-taking-and-sharing-images-of-patients
#5
Monique Jonas, Phillipa Malpas, Kate Kersey, Alan Merry, Warwick Bagg
AIMS: To develop a policy governing the taking and sharing of photographic and radiological images by medical students. METHODS: The Rules of the Health Information Privacy Code 1994 and the Code of Health and Disability Services Consumers' Rights were applied to the taking, storing and sharing of photographic and radiological images by medical students. Stakeholders, including clinicians, medical students, lawyers at district health boards in the Auckland region, the Office of the Privacy Commissioner and the Health and Disability Commissioner were consulted and their recommendations incorporated...
January 27, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/28130997/antiseptic-barrier-cap-effective-in-reducing-central-line-associated-bloodstream-infections-a-systematic-review-and-meta-analysis
#6
REVIEW
Anne F Voor In 't Holt, Onno K Helder, Margreet C Vos, Laura Schafthuizen, Sandra Sülz, Agnes van den Hoogen, Erwin Ista
BACKGROUND: Microorganisms can intraluminally access a central venous catheter via the catheter hub. The catheter hub should be appropriately disinfected to prevent central line-associated bloodstream infections (CLABSIs). However, compliance with the time-consuming manual disinfection process is low. An alternative is the use of an antiseptic barrier cap, which cleans the catheter hub by continuous passive disinfection. OBJECTIVE: To compare the effects of antiseptic barrier cap use and manual disinfection on the incidence of CLABSIs...
January 22, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/28129549/tomato-and-lycopene-supplementation-and-cardiovascular-risk-factors-a-systematic-review-and-meta-analysis
#7
Ho Ming Cheng, Georgios Koutsidis, John K Lodge, Ammar Ashor, Mario Siervo, José Lara
BACKGROUND AND AIMS: Epidemiological evidence suggests an association between consumption of tomato products or lycopene and lower risk for cardiovascular diseases (CVD). Our aim was to evaluate the state of the evidence from intervention trials on the effect of consuming tomato products and lycopene on markers of cardiovascular (CV) function. We undertook a systematic review and meta-analysis on the effect of supplementing tomato and lycopene on CV risk factors. METHODS: Three databases including Medline, Web of science, and Scopus were searched from inception to August 2016...
January 13, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28128975/best-practice-to-order-authors-in-multi-interdisciplinary-health-sciences-research-publications
#8
Elise Smith, Zubin Master
Misunderstanding and disputes about authorship are commonplace among members of multi/interdisciplinary health research teams. If left unmanaged and unresolved, these conflicts can undermine knowledge sharing and collaboration, obscure accountability for research, and contribute to the incorrect attribution of credit. To mitigate these issues, certain researchers suggest quantitative authorship distributions schemes (e.g., point systems) while other wish to replace or minimize the importance of authorship by using "contributorship"-a system based on authors' self-reporting contributions...
January 27, 2017: Accountability in Research
https://www.readbyqxmd.com/read/28128476/dementia-cognitive-impairment-and-proton-pump-inhibitor-therapy-a-systematic-review
#9
Riley Batchelor, Julia Fiona-Maree Gilmartin, William Kemp, Ingrid Hopper, Danny Liew
BACKGROUND: Proton pump inhibitors (PPIs) are among the most widely used medications worldwide. Dementia is an increasingly common cause of disability in older populations. Recent studies have suggested an increased risk of cognitive impairment and dementia diagnosis among people who consume PPIs. This systematic review explores dementia, cognitive impairment and the use of PPIs. METHODS: Systematic searches were conducted in the databases of MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials (CENTRAL), PSYCinfo, Scopus, Web of Science and ClinicalTrials...
January 27, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28125353/recent-advances-in-the-utilization-of-natural-emulsifiers-to-form-and-stabilize-emulsions
#10
David Julian McClements, Long Bai, Cheryl Chung
Consumer concern about human and environmental health is encouraging food manufacturers to use more natural and sustainable food ingredients. In particular, there is interest in replacing synthetic ingredients with natural ones, and in replacing animal-based ingredients with plant-based ones. This article provides a review of the various types of natural emulsifiers with potential application in the food industry, including phospholipids, biosurfactants, proteins, polysaccharides, and natural colloidal particles...
January 11, 2017: Annual Review of Food Science and Technology
https://www.readbyqxmd.com/read/28125350/the-challenges-of-eliminating-or-substituting-antimicrobial-preservatives-in-foods
#11
Marilyn C Erickson, Michael P Doyle
Consumers' criteria for evaluating food safety have evolved recently from considering the food's potential to cause immediate physical harm to considering the potential long-term effects that consumption of artificial ingredients, including antimicrobial preservatives, would have on health. As bacteriostatic and bactericidal agents to prevent microbial spoilage, antimicrobials not only extend shelf life, but they also enhance the product's safety. Antimicrobials and their levels that may be used in foods are specified by regulatory agencies...
January 11, 2017: Annual Review of Food Science and Technology
https://www.readbyqxmd.com/read/28125346/natural-colorants-food-colorants-from-natural-sources
#12
Gregory T Sigurdson, PeiPei Tang, M Mónica Giusti
The color of food is often associated with the flavor, safety, and nutritional value of the product. Synthetic food colorants have been used because of their high stability and low cost. However, consumer perception and demand have driven the replacement of synthetic colorants with naturally derived alternatives. Natural pigment applications can be limited by lower stability, weaker tinctorial strength, interactions with food ingredients, and inability to match desired hues. Therefore, no single naturally derived colorant can serve as a universal alternative for a specified synthetic colorant in all applications...
January 11, 2017: Annual Review of Food Science and Technology
https://www.readbyqxmd.com/read/28125343/advances-in-nanotechnology-as-they-pertain-to-food-and-agriculture-benefits-and-risks
#13
Rohollah Sadeghi, Randol J Rodriguez, Yuan Yao, Jozef L Kokini
Nanotechnology is an emerging and rapidly developing toolbox that has novel and unique applications to food science and agriculture. Fast and impressive developments in nanotechnology for food and agriculture have led to new experimental prototype technologies and products. Developing various types of nanodelivery systems, detection tools, nanoscale modifications of bulk or surface properties, fabrication of wide-range bionanosensors, and biodegradable nanoplatforms can potentially improve consumer health and safety, product shelf life and stability, bioavailability, environmental sustainability, efficiency of processing and packaging, and real-time monitoring...
January 25, 2017: Annual Review of Food Science and Technology
https://www.readbyqxmd.com/read/28124016/effectiveness-of-early-clinical-exposure-in-learning-respiratory-physiology-among-the-newly-entrant-mbbs-students
#14
Piyali DAS, Subhradev Biswas, Ramji Singh, Sanhita Mukherjee, Sharmistha Ghoshal, Debasis Pramanik
INTRODUCTION: Early Clinical Exposure has been conceptualized to orient medical students towards actual clinical scenario and help them correlate their theoretical knowledge with real life situations in early years of MBBS courses. In the present study we explored the outcome of early clinical exposure in the context of basic science topics (Physiology) in fresh MBBS entrants and compared their performance with a conventionally taught control group. METHODS: One hundred fifty voluntary students of 1st year MBBS (2015-16) batch consisted the sample of this study...
January 2017: Journal of Advances in Medical Education & Professionalism
https://www.readbyqxmd.com/read/28115978/high-fat-diet-modifies-the-association-of-lipoprotein-lipase-gene-polymorphism-with-high-density-lipoprotein-cholesterol-in-an-asian-indian-population
#15
K A Ayyappa, I Shatwan, D Bodhini, L R Bramwell, K Ramya, V Sudha, R M Anjana, J A Lovegrove, V Mohan, V Radha, K S Vimaleswaran
BACKGROUND: Single nucleotide polymorphisms (SNPs) in lipoprotein lipase gene (LPL) have been shown to influence metabolism related to lipid phenotypes. Dietary factors have been shown to modify the association between LPL SNPs and lipids; however, to date, there are no studies in South Asians. Hence, we tested for the association of four common LPL SNPs with plasma lipids and examined the interactions between the SNPs and dietary factors on lipids in 1,845 Asian Indians. METHODS: The analysis was performed in 788 Type 2 diabetes cases and 1,057 controls randomly chosen from the cross-sectional Chennai Urban Rural Epidemiological Study...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28112529/frequency-and-risk-factors-of-penicillin-and-amoxicillin-allergy-in-suspected-patients-with-drug-allergy
#16
Mohammad Reza Fazlollahi, Katayoon Bidad, Raheleh Shokouhi, Raheleh Dashti, Mohammad Nabavi, Masoud Movahedi, Mohammad Hasan Bemanian, Ali Reza Shafiei, Najmoddin Kalantari, Effat Sadat Farboud, Zahra Pourpak, Mostafa Moin
BACKGROUND: Unconfirmed beta-lactam allergy is a significant public health problem because of the limitations it imposes in drug selection. In this study, we aimed to evaluate patients referred for beta-lactam allergy to determine the frequency of confirmed beta-lactam allergy and identify some risk factors. METHODS: In a prospective cohort study, all referred patients to Immunology, Asthma and Allergy Research Institute in Tehran University of Medical Sciences (between 2007 - 2009) who suspected to have beta-lactam allergy were entered into this study based on having the inclusion criteria...
January 2017: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/28110066/bioactive-nutrients-time-for-tolerable-upper-intake-levels-to-address-safety
#17
Allison A Yates, John W Erdman, Andrew Shao, Laurie C Dolan, James C Griffiths
There is increasing interest by consumers, researchers, and regulators into the roles that certain bioactive compounds, derived from plants and other natural sources, can play in health maintenance and promotion, and even prolonging a productive quality of life. Research has rapidly emerged suggesting that a wide range of compounds and mixtures in and from plants (such as fruits and vegetables, tea and cocoa) and animals (such as fish and probiotics) may exert substantial health benefits. There is interest in exploring the possibility of establishing recommended intakes or dietary guidance for certain bioactive substances to help educate consumers...
January 18, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28106333/translating-precision
#18
EDITORIAL
Michael A Pacanowski
Precision medicine is based on a simple precept that deep information about an individual patient can be used to guide his or her health care. In the not-too-distant future, clinicians may have point-of-care access to an individual's entire genome, dense data captured from wearable devices, and informatics tools that aggregate data from clinical experience to allow for real-time decision support. The innovative technologies being developed in pursuit of precision medicine afford researchers and clinicians the opportunity to generate and consume information at an unprecedented scale...
January 20, 2017: Clinical and Translational Science
https://www.readbyqxmd.com/read/28103298/perinatal-choline-supplementation-reduces-amyloidosis-and-increases-choline-acetyltransferase-expression-in-the-hippocampus-of-the-appsweps1de9-alzheimer-s-disease-model-mice
#19
Tiffany J Mellott, Olivia M Huleatt, Bethany N Shade, Sarah M Pender, Yi B Liu, Barbara E Slack, Jan K Blusztajn
Prevention of Alzheimer's disease (AD) is a major goal of biomedical sciences. In previous studies we showed that high intake of the essential nutrient, choline, during gestation prevented age-related memory decline in a rat model. In this study we investigated the effects of a similar treatment on AD-related phenotypes in a mouse model of AD. We crossed wild type (WT) female mice with hemizygous APPswe/PS1dE9 (APP.PS1) AD model male mice and maintained the pregnant and lactating dams on a control AIN76A diet containing 1...
2017: PloS One
https://www.readbyqxmd.com/read/28098161/modelling-of-occupational-exposure-to-inhalable-nickel-compounds
#20
Benjamin Kendzia, Beate Pesch, Dorothea Koppisch, Rainer Van Gelder, Katrin Pitzke, Wolfgang Zschiesche, Thomas Behrens, Tobias Weiss, Jack Siemiatycki, Jerome Lavoué, Karl-Heinz Jöckel, Roger Stamm, Thomas Brüning
The aim of this study was to estimate average occupational exposure to inhalable nickel (Ni) using the German exposure database MEGA. This database contains 8052 personal measurements of Ni collected between 1990 and 2009 in adjunct with information on the measurement and workplace conditions. The median of all Ni concentrations was 9 μg/m(3) and the 95th percentile was 460 μg/m(3). We predicted geometric means (GMs) for welders and other occupations centered to 1999. Exposure to Ni in welders is strongly influenced by the welding process applied and the Ni content of the used welding materials...
January 18, 2017: Journal of Exposure Science & Environmental Epidemiology
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