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https://www.readbyqxmd.com/read/29448239/bioaccessibility-and-bioavailability-of-environmental-semi-volatile-organic-compounds-via-inhalation-a-review-of-methods-and-models
#1
REVIEW
Wenjuan Wei, Nathalie Bonvallot, Åsa Gustafsson, Gaëlle Raffy, Philippe Glorennec, Annette Krais, Olivier Ramalho, Barbara Le Bot, Corinne Mandin
Semi-volatile organic compounds (SVOCs) present in indoor environments are known to cause adverse health effects through multiple routes of exposure. To assess the aggregate exposure, the bioaccessibility and bioavailability of SVOCs need to be determined. In this review, we discussed measurements of the bioaccessibility and bioavailability of SVOCs after inhalation. Published literature related to this issue is available for 2,3,7,8-tetrachlorodibenzo-p-dioxin and a few polycyclic aromatic hydrocarbons, such as benzo[a]pyrene and phenanthrene...
February 12, 2018: Environment International
https://www.readbyqxmd.com/read/29408106/sustainable-and-long-time-rejuvenation-of-biomimetic-water-repellent-silica-coating-on-polyester-fabrics-induced-by-rough-mechanical-abrasion
#2
Cornelia Rosu, Haisheng Lin, Lu Jiang, Victor Breedveld, Dennis W Hess
The economical use of water-repellent coatings on polymeric materials in commercial and industrial applications is limited by their mechanical wear robustness and long-term durability. In this study, we demonstrate that polyethylene terephthalate (PET) fabric modified with inorganic, methyltrimethoxysilane (MTMS)-based coatings shows excellent resistance against various types of wear damage, thereby mimicking superhydrophobic biological materials. These features were facilitated by the rational design of coating processing that also enabled tunable hierarchical surface structure...
January 23, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29395141/evaluation-of-an-ear-tag-based-accelerometer-for-monitoring-rumination-in-dairy-cows
#3
S Reiter, G Sattlecker, L Lidauer, F Kickinger, M Öhlschuster, W Auer, V Schweinzer, D Klein-Jöbstl, M Drillich, M Iwersen
The objective of this study was to evaluate the ear-tag-based accelerometer system Smartbow (Smartbow GmbH, Weibern, Austria) for detecting rumination time, chewing cycles, and rumination bouts in indoor-housed dairy cows. For this, the parameters were determined by analyses of video recordings as reference and compared with the results of the accelerometer system. Additionally, we have tested the intra- and inter-observer reliability as well as the agreement of direct cow observations and video recordings...
January 30, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29376193/portable-low-power-thermal-cycler-with-dual-thin-film-pt-heaters-for-a-polymeric-pcr-chip
#4
Sangdo Jeong, Juhun Lim, Mi-Young Kim, JiHye Yeom, Hyunmin Cho, Hyunjung Lee, Yong-Beom Shin, Jong-Hyun Lee
Polymerase chain reaction (PCR) has been widely used for major definite diagnostic tool, but very limited its place used only indoor such as hospital or diagnosis lab. For the rapid on-site detection of pathogen in an outdoor environment, a low-power cordless polymerase chain reaction (PCR) thermal cycler is crucial module. At this point of view, we proposed a low-power PCR thermal cycler that could be operated in an outdoor anywhere. The disposable PCR chip was made of a polymeric (PI/PET) film to reduce the thermal mass...
January 29, 2018: Biomedical Microdevices
https://www.readbyqxmd.com/read/29353858/seasonal-changes-in-circulating-gonadal-steroid-levels-and-physiological-evidence-for-the-presence-of-intrinsic-circannual-reproductive-cycles-in-captive-finless-porpoises-neophocaena-asiaeorientalis-from-the-western-inland-sea-japan
#5
Noriko Funasaka, Motoi Yoshioka, Toshiaki Ishibashi, Toshiyuki Tatsukawa, Hideaki Shindo, Koji Takada, Masayuki Nakamura, Tomohiko Iwata, Kaoru Fujimaru, Taira Tanaka
We monitored annual fluctuations of gonadal steroid levels in three sexually mature captive finless porpoises (Neophocaena asiaeorientalis; two males and one female) from two different facilities over 56-91 months. Two animals (one male and one female) were held in an indoor tank with a sunroof (facility A) and the other male was held in an indoor tank without a sunroof (facility B). Water temperatures in both facilities reflected seasonal changes during the study period with a minor difference in the fluctuation pattern...
January 19, 2018: Journal of Reproduction and Development
https://www.readbyqxmd.com/read/29342096/high-resolution-lipidomics-of-the-early-life-stages-of-the-red-seaweed-porphyra-dioica
#6
Elisabete da Costa, Vitor Azevedo, Tânia Melo, Andreia M Rego, Dmitry V Evtuguin, Pedro Domingues, Ricardo Calado, Rui Pereira, Maria H Abreu, Maria R Domingues
Porphyra dioica is a commercial seaweed consumed all over the world, mostly in the shape of nori sheets used for "sushi" preparation. It is a well-known part of the Asian diet with health benefits, which have been associated, among others, to the high levels of n-3 and n-6 fatty acids in this red alga. However, other highly valued lipids of Porphyra are polar lipids that remain largely undescribed and can have both nutritional value and bioactivity, thus could contribute to the valorization of this seaweed...
January 17, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29282130/what-does-not-kill-it-makes-it-weaker-effects-of-sub-lethal-concentrations-of-ivermectin-on-the-locomotor-activity-of-anopheles-aquasalis
#7
Vanderson de Souza Sampaio, Gustavo Bueno da Silva Rivas, Kevin Kobylinski, Yudi Tatiana Pinilla, Paulo Filemon Paolluci Pimenta, José Bento Pereira Lima, Rafaela Vieira Bruno, Marcus Vinícius Guimarães Lacerda, Wuelton Marcelo Monteiro
BACKGROUND: Malaria remains a major public health concern. Vector control measures based solely on insecticide treated nets (ITNs) and indoor residual spraying (IRS) have demonstrated not to be feasible for malaria elimination. It has been shown that ivermectin affects several aspects of Anopheles species biology. Along the Latin American seacoast, Anopheles aquasalis Curry plays an important role in malaria transmission. The observation of mosquitoes locomotor activity under laboratory conditions can reveal details of their daily activity rhythms, which is controlled by an endogenous circadian clock that seems to be influenced by external signals, such as light and temperature...
December 28, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29234917/cardiovascular-and-metabolic-responses-during-indoor-climbing-and-laboratory-cycling-exercise-in-advanced-and-%C3%A3-lite-climbers
#8
Eloisa Limonta, Alfredo Brighenti, Susanna Rampichini, Emiliano Cè, Federico Schena, Fabio Esposito
PURPOSE: To validate heart rate (f H) as an effective indicator of the aerobic demands of climbing, the f H vs oxygen uptake ([Formula: see text]) relationship determined during cycling exercise and climbing on a circular climbing treadwall was compared. Possible differences in maximum aerobic characteristics between advanced and élite climbers were also assessed. METHODS: Seven advanced and six élite climbers performed a discontinuous incremental test on a cycle ergometer and a similar test on a climbing treadwall...
February 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29198522/role-of-compostable-tableware-in-food-service-and-waste-management-a-life-cycle-assessment-study
#9
Maurizio Fieschi, Ugo Pretato
It is estimated that in Europe 88-100 million tonnes of food waste are generated every year, with a Global Warming Potential (GWP) of around 227 MT of CO2 equivalents generated for their collection and disposal. A 12% of this waste is estimated to arise from food service within the hospitality sector, which includes quick service restaurants, casual and fine dining, contract catering (canteens, prisons, hospitals, schools etc.) as well as indoor and outdoor events and exhibitions. Given this considerable amount and that the mixed unsorted collection is often the only practicable way to handle such waste flows, the choice of tableware and cutlery can make a big difference in facilitating waste collection as well as in reducing the overall environmental impact of food waste management...
November 30, 2017: Waste Management
https://www.readbyqxmd.com/read/29194440/attacking-the-mosquito-on-multiple-fronts-insights-from-the-vector-control-optimization-model-vcom-for-malaria-elimination
#10
Samson S Kiware, Nakul Chitnis, Allison Tatarsky, Sean Wu, Héctor Manuel Sánchez Castellanos, Roly Gosling, David Smith, John M Marshall
BACKGROUND: Despite great achievements by insecticide-treated nets (ITNs) and indoor residual spraying (IRS) in reducing malaria transmission, it is unlikely these tools will be sufficient to eliminate malaria transmission on their own in many settings today. Fortunately, field experiments indicate that there are many promising vector control interventions that can be used to complement ITNs and/or IRS by targeting a wide range of biological and environmental mosquito resources. The majority of these experiments were performed to test a single vector control intervention in isolation; however, there is growing evidence and consensus that effective vector control with the goal of malaria elimination will require a combination of interventions...
2017: PloS One
https://www.readbyqxmd.com/read/29194186/the-impact-of-different-cross-training-modalities-on-performance-and-injury-related-variables-in-high-school-cross-country-runners
#11
Max R Paquette, Shelby A Peel, Ross E Smith, Mark Temme, Jeffrey N Dwyer
There are many different types of aerobic cross-training modalities currently available. It is important to consider the effects that these different modalities have on running performance and injury risks. The purpose of this study was to compare movement quality, running economy and performance, injury-related biomechanical variables and, hip muscle strength before and after training with different cross-training modalities in high school runners. Thirty-one high school male runners trained for four weeks in one of three cross-training modalities, in addition to a running-only (RUN, n=9) group, for which training sessions replaced two easy runs per week: cycling (CYCLE; n=6), indoor elliptical (ELLIP; n=7) and, outdoor elliptical bike (EBIKE; n=9)...
November 29, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29182415/validity-and-reliability-of-the-cycleops-hammer-cycle-ergometer
#12
José R Lillo-Bevia, Jesús G Pallarés
PURPOSE: To validate the new drive indoor trainer Hammer designed by Cycleops®. METHODS: Eleven cyclists performed 44 randomized and counterbalanced graded exercise tests (100-500W), at 70, 85 and 100 rev.min-1 cadences, in seated and standing positions, on 3 different Hammer units, while a scientific SRM system continuously recorded cadence and power output data. RESULTS: No significant differences were detected between the three Hammer devices and the SRM for any workload, cadence, or pedalling condition (P value between 1...
November 28, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29168902/an-in-situ-thermally-regenerated-air-purifier-for-indoor-formaldehyde-removal
#13
Ru Xiao, Jinhan Mo, Yinping Zhang, Dewen Gao
Formaldehyde is a common indoor pollutant that is an irritant and has been classified as carcinogen to humans. Adsorption technology is safe and stable and removes formaldehyde efficiently, but its short lifespan and low adsorption capacity limit its indoor application. To overcome these limitations, we propose an in-situ thermally regenerated air purifier (TRAP) which self-regenerates as needed. This purifier has four working modes: cleaning mode, regeneration mode, exhaust mode and outdoor air in-take mode, all of which are operated by valve switching...
November 23, 2017: Indoor Air
https://www.readbyqxmd.com/read/29128419/tramadol-effects-on-physical-performance-and-sustained-attention-during-a-20-min-indoor-cycling-time-trial-a-randomised-controlled-trial
#14
Darías Holgado, Thomas Zandonai, Mikel Zabala, James Hopker, Pandelis Perakakis, Antonio Luque-Casado, Luis Ciria, Eduardo Guerra-Hernandez, Daniel Sanabria
OBJECTIVES: To investigate the effect of tramadol on performance during a 20-min cycling time-trial (Experiment 1), and to test whether sustained attention would be impaired during cycling after tramadol intake (Experiment 2). DESIGN: Randomized, double-blind, placebo controlled trial. METHODS: In Experiment 1, participants completed a cycling time-trial, 120-min after they ingested either tramadol or placebo. In Experiment 2, participants performed a visual oddball task during the time-trial...
November 7, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29121873/barriers-to-hpv-self-sampling-and-cytology-among-low-income-indigenous-women-in-rural-areas-of-a-middle-income-setting-a-qualitative-study
#15
Betania Allen-Leigh, Patricia Uribe-Zúñiga, Leith León-Maldonado, Brandon J Brown, Attila Lörincz, Jorge Salmeron, Eduardo Lazcano-Ponce
BACKGROUND: Data is needed about barriers to self-collection of Human Papillomavirus (HPV) samples and cytology among low-income, disadvantaged women living in rural areas of lower-income countries as these women are at increased risk of cervical cancer mortality. METHODS: Individual interviews (n = 29), focus groups (n = 7, 5-11 participants) and discussion groups (n = 2, 18-25 participants) were organized with women from three indigenous ethnic groups residing in rural areas in Mexico, after they were provided with free, self-sampled HPV tests...
November 9, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29083115/an-update-on-environmental-mastitis-challenging-perceptions
#16
I C Klaas, R N Zadoks
Environmental mastitis is the most common and costly form of mastitis in modern dairy herds where contagious transmission of intramammary pathogens is controlled through implementation of standard mastitis prevention programmes. Environmental mastitis can be caused by a wide range of bacterial species, and binary classification of species as contagious or environmental is misleading, particularly for Staphylococcus aureus, Streptococcus uberis and other streptococcal species, including Streptococcus agalactiae...
October 30, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29082079/robust-tracking-of-respiratory-rate-in-high-dynamic-range-scenes-using-mobile-thermal-imaging
#17
Youngjun Cho, Simon J Julier, Nicolai Marquardt, Nadia Bianchi-Berthouze
The ability to monitor the respiratory rate, one of the vital signs, is extremely important for the medical treatment, healthcare and fitness sectors. In many situations, mobile methods, which allow users to undertake everyday activities, are required. However, current monitoring systems can be obtrusive, requiring users to wear respiration belts or nasal probes. Alternatively, contactless digital image sensor based remote-photoplethysmography (PPG) can be used. However, remote PPG requires an ambient source of light, and does not work properly in dark places or under varying lighting conditions...
October 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/29080527/health-impact-assessment-from-building-life-cycles-and-trace-metals-in-coarse-particulate-matter-in-urban-office-environments
#18
Murnira Othman, Mohd Talib Latif, Ahmad Fariz Mohamed
This study intends to determine the health impacts from two office life cycles (St.1 and St.2) using life cycle assessment (LCA) and health risk assessment of indoor metals in coarse particulates (particulate matter with diameters of less than 10µm). The first building (St.1) is located in the city centre and the second building (St.2) is located within a new development 7km away from the city centre. All life cycle stages are considered and was analysed using SimaPro software. The trace metal concentrations were determined by inductively couple plasma-mass spectrometry (ICP-MS)...
October 25, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29076960/effects-of-combined-strength-and-endurance-training-on-physical-performance-and-biomarkers-of-healthy-young-women
#19
Heikki KyrÖlÄinen, Anthony C Hackney, Riikka Salminen, Johanna Repola, Keijo HÄkkinen, Jari Haimi
Cardiovascular fitness has decreased and obesity has increased in youth-adults world-wide during the last ten years. Therefore, there is an urgent need to find out optimal exercise training programs for improving physical performance and health outcomes, especially, among sedentary women. Subjects were 25-30-year-old females with very low physical activity, and 65 % of them were overweight (BMI >25). They performed endurance and strength training three times a week for nine weeks. Independent strength training and instructed endurance training by indoor cycling were prescribed...
October 20, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28902109/validity-and-reliability-of-the-stages-cycling-power-meter
#20
Cyril Granier, Christophe Hausswirth, Sylvain Dorel, Le Meur Yann
PURPOSE: This study aimed to determine the validity and the reliability of the Stages power meter crank system (Boulder, United States) during several laboratory cycling tasks. METHODS: Eleven trained participants completed laboratory cycling trials on an indoor cycle fitted with SRM Professional and Stages systems. The trials consisted of an incremental test at 100W, 200W, 300W, 400W and four 7s sprints. The level of pedaling asymmetry was determined for each cycling intensity during a similar protocol completed on a Lode Excalibur Sport ergometer...
September 6, 2017: Journal of Strength and Conditioning Research
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