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https://www.readbyqxmd.com/read/29346727/bioinspired-pressure-tolerant-asymmetric-slippery-surface-for-continuous-self-transport-of-gas-bubbles-in-aqueous-environment
#1
Chunhui Zhang, Bo Zhang, Hongyu Ma, Zhe Li, Xiao Xiao, Yuheng Zhang, Xinyu Cui, Cunming Yu, Moyuan Cao, Lei Jiang
Bio-surfaces with geometry-gradient structures or special wettabilities demonstrate intriguing performance in manipulating the behaviors of versatile fluids. By mimicking natural species, i.e., the cactus spine with a shape-gradient morphology and the Picher plant with a lubricated inner surface, we have successfully prepared an asymmetric slippery surface by following the processes of CO2-laser cutting, superhydrophobic modification, and the fluorinert infusion. The asymmetric morphology will cause the deformation of gas bubbles and subsequently engender an asymmetric driven force on them...
January 18, 2018: ACS Nano
https://www.readbyqxmd.com/read/29346651/bipartite-network-analysis-of-gene-sharings-in-the-microbial-world
#2
Eduardo Corel, Raphaël Méheust, Andrew K Watson, James O McInerney, Philippe Lopez, Eric Bapteste
Extensive microbial gene flows affect how we understand virology, microbiology, medical sciences, genetic modification and evolutionary biology. Phylogenies only provide a narrow view of these gene flows: plasmids and viruses, lacking core genes, cannot be attached to cellular life on phylogenetic trees. Yet viruses and plasmids have a major impact on cellular evolution, affecting both the gene content and the dynamics of microbial communities. Using bipartite graphs that connect up to 149,000 clusters of homologous genes with 8217 related and unrelated genomes, we can in particular show patterns of gene sharing that do not map neatly with the organismal phylogeny...
January 15, 2018: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/29346647/resistance-to-selected-pyrethroid-insecticides-in-the-malaria-mosquito-anopheles-stephensi-diptera-muscidae-from-punjab-pakistan
#3
Hafiz Azhar Ali Khan, Waseem Akram, Sumi Lee
Pyrethroids are commonly used insecticides in malaria control programs; however, insecticide resistance limits the benefits gained by using these insecticides. In the present study, we assessed the resistance status for different pyrethroids of the malaria mosquito vector, Anopheles stephensi Liston (Diptera: Muscidae), in the Punjab province, Pakistan. Bioassays were conducted using diagnostic doses following standard World Health Organization protocols: 0.05% λ-cyhalothrin, 0.75% permethrin, 0.15% cyfluthrin, 0...
January 16, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29346640/preventive-chemotherapy-to-control-soil-transmitted-helminthiasis-averted-more-than-500-000-dalys-in-2015
#4
A Montresor, W Trouleau, D Mupfasoni, M Bangert, S A Joseph, A Mikhailov, C Fitzpatrick
Background: Preventive chemotherapy (PC), the large-scale administration of anthelminthics, is recommended by the World Health Organization (WHO) for the control of soil-transmitted helminthiasis (STH). Since 2010, donated anthelminthics for STH have boosted the implementation of PC programmes in children, achieving global coverage of more than 60% in 2015. The WHO Global Health Estimates attribute an annual loss of over 3.3 million disability-adjusted life-years (DALYs) to STH. The aim of this study is to estimate the impact of PC programmes on child morbidity...
January 16, 2018: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29346441/a-portable-system-for-processing-donated-whole-blood-into-high-quality-components-without-centrifugation
#5
Sean C Gifford, Briony C Strachan, Hui Xia, Eszter Vörös, Kian Torabian, Taylor A Tomasino, Gary D Griffin, Benjamin Lichtiger, Fleur M Aung, Sergey S Shevkoplyas
BACKGROUND: The use of centrifugation-based approaches for processing donated blood into components is routine in the industrialized world, as disparate storage conditions require the rapid separation of 'whole blood' into distinct red blood cell (RBC), platelet, and plasma products. However, the logistical complications and potential cellular damage associated with centrifugation/apheresis manufacturing of blood products are well documented. The objective of this study was to evaluate a proof-of-concept system for whole blood processing, which does not employ electromechanical parts, is easily portable, and can be operated immediately after donation with minimal human labor...
2018: PloS One
https://www.readbyqxmd.com/read/29346423/the-association-of-estimated-salt-intake-with-blood-pressure-in-a-viet-nam-national-survey
#6
Paul N Jensen, Tran Quoc Bao, Tran Thi Thanh Huong, Susan R Heckbert, Annette L Fitzpatrick, James P LoGerfo, Truong Le Van Ngoc, Ali H Mokdad
OBJECTIVE: To evaluate the association of salt consumption with blood pressure in Viet Nam, a developing country with a high level of salt consumption. DESIGN AND SETTING: Analysis of a nationally representative sample of Vietnamese adults 25-65 years of age who were surveyed using the World Health Organization STEPwise approach to Surveillance protocol. Participants who reported acute illness, pregnancy, or current use of antihypertensive medications were excluded...
2018: PloS One
https://www.readbyqxmd.com/read/29346375/how-do-we-reach-the-girls-and-women-who-are-the-hardest-to-reach-inequitable-opportunities-in-reproductive-and-maternal-health-care-services-in-armed-conflict-and-forced-displacement-settings-in-colombia
#7
Juan Carlos Rivillas, Raul Devia Rodriguez, Gloria Song, Andréanne Martel
OBJECTIVES: This paper assesses inequalities in access to reproductive and maternal health services among females affected by forced displacement and sexual and gender-based violence in conflict settings in Colombia. This was accomplished through the following approaches: first, we assessed the gaps and gradients in three selected reproductive and maternal health care services. Second, we analyzed the patterns of inequalities in reproductive and maternal health care services and changes over time...
2018: PloS One
https://www.readbyqxmd.com/read/29346366/testing-for-soil-transmitted-helminth-transmission-elimination-analysing-the-impact-of-the-sensitivity-of-different-diagnostic-tools
#8
Marleen Werkman, James E Wright, James E Truscott, Alice V Easton, Rita G Oliveira, Jaspreet Toor, Alison Ower, Kristjana H Ásbjörnsdóttir, Arianna R Means, Sam H Farrell, Judd L Walson, Roy M Anderson
In recent years, an increased focus has been placed upon the possibility of the elimination of soil-transmitted helminth (STH) transmission using various interventions including mass drug administration. The primary diagnostic tool recommended by the WHO is the detection of STH eggs in stool using the Kato-Katz (KK) method. However, detecting infected individuals using this method becomes increasingly difficult as the intensity of infection decreases. Newer techniques, such as qPCR, have been shown to have greater sensitivity than KK, especially at low prevalence...
January 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29346302/smart-device-based-notifications-to-promote-healthy-behavior-related-to-childhood-obesity-and-overweight
#9
Gustavo López, Iván González, Elitania Jimenez-Garcia, Jesús Fontecha, Jose A Brenes, Luis A Guerrero, José Bravo
Obesity is one of the most serious public health challenges of the 21st century and it is a threat to the life of people according to World Health Organization. In this scenario, family environment is important to establish healthy habits which help to reduce levels of obesity and control overweight in children. However, little efforts have been focused on helping parents to promote and have healthy lifestyles. In this paper, we present two smart device-based notification prototypes to promote healthy behavior with the aim of avoiding childhood overweight and obesity...
January 18, 2018: Sensors
https://www.readbyqxmd.com/read/29346286/a-more-efficient-transportable-and-scalable-system-for-real-time-activities-and-exercises-recognition
#10
Kévin Chapron, Valère Plantevin, Florentin Thullier, Kévin Bouchard, Elise Duchesne, Sébastien Gaboury
Many people in the world are affected by muscle wasting, especially the population hits by myotonic dystrophy type 1 (DM1). Those people are usually given a program of multiple physical exercises to do. While DM1 and many other people have difficulties attending commercial centers to realize their program, a solution is to develop such a program completable at home. To this end, we developed a portable system that patients could bring home. This prototype is an improved version of the previous one using Wi-Fi, as this new prototype runs on BLE technology...
January 18, 2018: Sensors
https://www.readbyqxmd.com/read/29346281/a-prototype-sensor-for-in-situ-sensing-of-fine-particulate-matter-and-volatile-organic-compounds
#11
Chee-Loon Ng, Fuu-Ming Kai, Ming-Hui Tee, Nicholas Tan, Harold F Hemond
Air pollution exposure causes seven million deaths per year, according to the World Health Organization. Possessing knowledge of air quality and sources of air pollution is crucial for managing air pollution and providing early warning so that a swift counteractive response can be carried out. An optical prototype sensor (AtmOptic) capable of scattering and absorbance measurements has been developed to target in situ sensing of fine particulate matter (PM2.5) and volatile organic compounds (VOCs). For particulate matter testing, a test chamber was constructed and the emission of PM2...
January 18, 2018: Sensors
https://www.readbyqxmd.com/read/29346275/a-review-on-recent-advances-in-stabilizing-peptides-proteins-upon-fabrication-in-hydrogels-from-biodegradable-polymers
#12
REVIEW
Faisal Raza, Hajra Zafar, Ying Zhu, Yuan Ren, Aftab -Ullah, Asif Ullah Khan, Xinyi He, Han Han, Md Aquib, Kofi Oti Boakye-Yiadom, Liang Ge
Hydrogels evolved as an outstanding carrier material for local and controlled drug delivery that tend to overcome the shortcomings of old conventional dosage forms for small drugs (NSAIDS) and large peptides and proteins. The aqueous swellable and crosslinked polymeric network structure of hydrogels is composed of various natural, synthetic and semisynthetic biodegradable polymers. Hydrogels have remarkable properties of functionality, reversibility, sterilizability, and biocompatibility. All these dynamic properties of hydrogels have increased the interest in their use as a carrier for peptides and proteins to be released slowly in a sustained manner...
January 18, 2018: Pharmaceutics
https://www.readbyqxmd.com/read/29346253/an-innovative-solution-for-prolonged-air-leaks-the-customized-endobronchial-silicone-blocker
#13
Ravindra M Mehta, Abhinav Singla, Rajani S Bhat, Rakesh Godara, Chakravarthi Lokanath, Michael Cutaia
BACKGROUND: Prolonged air leak (PAL) is a life-threatening condition that can present either as bronchopleural fistula, or alveolar-pleural fistula (APF). Although numerous bronchoscopic treatments are described, they are either expensive, not widely available in the developing world or have limited success. We describe our experience with a novel customized endobronchial silicone blocker (CESB) for PAL treatment. METHODS: This is a retrospective study of PAL patients who underwent CESB placement...
January 16, 2018: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/29346100/improving-color-constancy-in-an-ambient-light-environment-using-the-phong-reflection-model
#14
Sung-Min Woo, Sang-Ho Lee, Jun-Sang Yoo, Jong-Ok Kim
We present a physics-based illumination estimation approach explicitly designed to handle natural images under ambient light. Existing physics-based color constancy methods are theoretically perfect but do not handle real-world images well because the majority of these methods assume a single illuminant. Therefore, specular pixels selected using existing methods produce estimated dichromatic lines that are thick or curvilinear in the presence of ambient light, thus generating significant errors. Based on the Phong reflection model, we show that a group of specular pixels on a uniformly colored object, although they are subject to intensity thresholding, produce a unique dichromatic line length depending on the geometry of each image path...
April 2018: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/29346021/extending-implications-of-study-findings-on-real-world-implementation
#15
David A Chambers
No abstract text is available yet for this article.
January 18, 2018: Journal of Oncology Practice
https://www.readbyqxmd.com/read/29346007/the-rise-and-fall-of-universal-health-coverage-as-a-goal-of-international-health-politics-1925-1952
#16
Martin Gorsky, Christopher Sirrs
The UN Sustainable Development Goals of 2015 have restored universal health coverage (UHC) to prominence in the international health agenda. Can understanding the past illuminate the prospects for UHC in the present? This article traces an earlier history of UHC as an objective of international health politics. Its focus is the efforts of the International Labor Organization (ILO), whose Philadelphia Declaration (1944) announced the goal of universal social security, including medical coverage and care. After World War II, the ILO attempted to enshrine this in an international convention, which nation states would ratify...
January 18, 2018: American Journal of Public Health
https://www.readbyqxmd.com/read/29346001/strategies-and-challenges-in-preventing-violence-against-canadian-indoor-sex-workers
#17
Vicky Bungay, Adrian Guta
OBJECTIVES: To examine indoor sex workers' strategies in preventing workplace violence and influential socio-structural conditions. METHODS: Data included qualitative interviews with 85 sex workers in British Columbia, Canada, from 2014 through 2016. For analyses, we used interpretive thematic techniques informed by World Health Organization position statements on violence. RESULTS: Robbery, nonpayment, financial exploitation, and privacy violations were frequent types of violence perpetrated by clients, landlords, and neighbors...
January 18, 2018: American Journal of Public Health
https://www.readbyqxmd.com/read/29345999/cost-effectiveness-of-capping-freeways-for-use-as-parks-the-new-york-cross-bronx-expressway-case-study
#18
Sooyoung Kim, Zafar Zafari, Martine Bellanger, Peter Alexander Muennig
OBJECTIVES: To examine health benefits and cost-effectiveness of implementing a freeway deck park to increase urban green space. METHODS: Using the Cross-Bronx Expressway in New York City as a case study, we explored the cost-effectiveness of implementing deck parks. We built a microsimulation model that included increased exercise, fewer accidents, and less pollution as well as the cost of implementation and maintenance of the park. We estimated both the quality-adjusted life years gained and the societal costs for 2017...
January 18, 2018: American Journal of Public Health
https://www.readbyqxmd.com/read/29345987/habitable-worlds-delivering-on-the-promises-of-online-education
#19
Lev B Horodyskyj, Chris Mead, Zack Belinson, Sanlyn Buxner, Steven Semken, Ariel D Anbar
Critical thinking and scientific reasoning are central to higher education in the United States, but many courses (in-person and online) teach students information about science much more than they teach the actual process of science and its associated knowledge and skills. In the online arena specifically, the tools available for course construction exacerbate this problem by making it difficult to build the types of active learning activities that research shows to be the most effective. Here, we present a report on Habitable Worlds, offered by Arizona State University for 12 semesters over the past 6 years...
January 2018: Astrobiology
https://www.readbyqxmd.com/read/29345986/vital-signs-seismology-of-icy-ocean-worlds
#20
Steven D Vance, Sharon Kedar, Mark P Panning, Simon C Stähler, Bruce G Bills, Ralph D Lorenz, Hsin-Hua Huang, W T Pike, Julie C Castillo, Philippe Lognonné, Victor C Tsai, Alyssa R Rhoden
Ice-covered ocean worlds possess diverse energy sources and associated mechanisms that are capable of driving significant seismic activity, but to date no measurements of their seismic activity have been obtained. Such investigations could reveal the transport properties and radial structures, with possibilities for locating and characterizing trapped liquids that may host life and yielding critical constraints on redox fluxes and thus on habitability. Modeling efforts have examined seismic sources from tectonic fracturing and impacts...
January 2018: Astrobiology
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