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https://www.readbyqxmd.com/read/28719822/heavy-truck-restrictions-and-air-quality-implications-in-s%C3%A3-o-paulo-brazil
#1
Pedro José Pérez-Martínez, María de Fátima Andrade, Regina Maura de Miranda
This study quantified the effects of traffic restrictions on diesel fuel heavy vehicles (HVs) on the air quality of the Bandeirantes corridor using hourly data obtained by continuous monitoring of traffic and air quality at sites located on this avenue. The study addressed the air quality of a city impacted by vehicular emissions and that PM10 and NOX concentrations are mainly due to diesel burning. Data collection was split into two time periods, a period of no traffic constraint on HVs (Nov 2008 and 2009) and a period of constraint (Nov 2010, 2011 and 2012)...
July 15, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28719431/bispectral-index-measurements-are-not-degraded-during-aeromedical-evacuations
#2
Nicolas Donat, Audrey Cirodde, Clément Hoffmann, Jean-Vivien Schaal, Yannick Masson, Antoine Nau, Paul Vincent Martin, Samuel Madec, Thomas Leclerc
For a decade, depth of anesthesia monitoring has become a reality in the operating room. It provides valuable help for managing anesthesia, especially for unstable patients. This might be particularly relevant during aeromedical evacuation. In this study, we aimed to assess the validity of the bispectral index (BIS) during long-range patient transportation aboard fixed-wing aircraft. BIS was recorded in 30 patients, 25 under anesthesia and 5 awake, during aeromedical evacuations performed by the French Air Force...
July 14, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28716940/reassessing-the-atmospheric-oxidation-mechanism-of-toluene
#3
Yuemeng Ji, Jun Zhao, Hajime Terazono, Kentaro Misawa, Nicholas P Levitt, Yixin Li, Yun Lin, Jianfei Peng, Yuan Wang, Lian Duan, Bowen Pan, Fang Zhang, Xidan Feng, Taicheng An, Wilmarie Marrero-Ortiz, Jeremiah Secrest, Annie L Zhang, Kazuhiko Shibuya, Mario J Molina, Renyi Zhang
Photochemical oxidation of aromatic hydrocarbons leads to tropospheric ozone and secondary organic aerosol (SOA) formation, with profound implications for air quality, human health, and climate. Toluene is the most abundant aromatic compound under urban environments, but its detailed chemical oxidation mechanism remains uncertain. From combined laboratory experiments and quantum chemical calculations, we show a toluene oxidation mechanism that is different from the one adopted in current atmospheric models...
July 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28716682/air-mrf-accelerated-iterative-reconstruction-for-magnetic-resonance-fingerprinting
#4
Christopher C Cline, Xiao Chen, Boris Mailhe, Qiu Wang, Josef Pfeuffer, Mathias Nittka, Mark A Griswold, Peter Speier, Mariappan S Nadar
Existing approaches for reconstruction of multiparametric maps with magnetic resonance fingerprinting (MRF) are currently limited by their estimation accuracy and reconstruction time. We aimed to address these issues with a novel combination of iterative reconstruction, fingerprint compression, additional regularization, and accelerated dictionary search methods. The pipeline described here, accelerated iterative reconstruction for magnetic resonance fingerprinting (AIR-MRF), was evaluated with simulations as well as phantom and in vivo scans...
July 14, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28715774/model-elucidating-the-sources-and-formation-mechanisms-of-severe-haze-pollution-over-northeast-mega-city-cluster-in-china
#5
Ting Yang, Alex Gbaguidi, Pingzhong Yan, Wending Zhang, Lili Zhu, Xuefeng Yao, Zifa Wang, Hui Chen
Recent studies on regional haze pollution over China come up in general with strong variability of main causes of heavy polluted episodes, in linkage with local specificities, sources and pollution characteristics. This paper therefore aims at elucidating the main specific sources and formation mechanisms of observed strong haze pollution episodes over 1-15 November 2015 in Northeast region considered as one of biggest megacity clusters in China. The Northeast China mega-city cluster, including Heilong Jiang, Jilin and Liaoning provinces, is adjacent to Russia in the north, Mongolian at the west, North Korea at east, and representing key geographical location in the regional and transnational air pollution issues in China due to the presence of heavy industries and intense economic activities...
July 14, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28714756/study-of-the-influence-of-coating-methods-on-lipid-spheres-manufactured-on-rotor-fluidized-bed-process
#6
Pascale Gauthier, Jean-Michel Cardot, Erick Beyssac, Jean-Marc Aiache
Different previous works have shown that various kinds of spheres can be manufactured by rotor granulation in a 'single pot process' using a lipid base: Hydrogenated Castor Oil. This single pot technology is based on wet granulation where all components are placed in powder form in the rotor bowl; then, they are continuously suspended in a fluidized air, with a tangentially sprayed liquid solution. This process allows the granulation and sphere manufacture during the same time. Previous experiments have studied the influence of the formulation and the manufacturing process parameters on spheres in term of feasibility and dissolution properties...
July 17, 2017: Pharmaceutical Development and Technology
https://www.readbyqxmd.com/read/28714735/effect-of-yoga-breathing-pranayama-on-exercise-tolerance-in-patients-with-chronic-obstructive-pulmonary-disease-a-randomized-controlled-trial
#7
David A Kaminsky, Kalpalatha K Guntupalli, Joan Lippmann, Stephanie M Burns, Melissa A Brock, Joan Skelly, Michael DeSarno, Heidi Pecott-Grimm, Ali Mohsin, Catherine LaRock-McMahon, Penney Warren, Martha C Whitney, Nicola A Hanania
OBJECTIVE: Pulmonary rehabilitation improves exercise tolerance in patients with chronic obstructive pulmonary disease (COPD). However, many patients do not have access to pulmonary rehabilitation programs. We hypothesized that an alternative to pulmonary rehabilitation to improve exercise tolerance is the practice of pranayama, or yoga breathing, which could be done independently at home. We also sought to determine whether yoga nonprofessionals could adequately teach pranayama to patients...
July 17, 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/28713086/intensifying-approach-to-the-therapy-of-patients-with-constellation-of-the-diseases-chronic-obstructive-pulmonary-disease-and-osteoarthritis
#8
Vyacheslav N Zhdan, Maksim М Potyazhenko, Galina S Khaymenova, Nadezhda N Lyulka, Tatyana V Dubrovinskaya, Igor V Ivanitsky
INTRODUCTION: Chronic obstructive pulmonary disease (COPD) is one of 21st century. About 210 million people all over the world are suffering with COPD, and annually 3 million people die of it. Under the influence of different factors, such as smoking, air prolusion, evaporation of chemicals, poisoning effect of chemical firings, inflammation processes take place in lungs, and if it is prolonged and take place simultaneously with morphological changes in the lungs, it it provide the de4velopment of the systemic inflammation process...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28712959/associations-between-long-term-exposure-to-air-pollution-glycosylated-hemoglobin-and-diabetes
#9
Trenton Honda, Vivian C Pun, Justin Manjourides, Helen Suh
BACKGROUND: Air pollution exposures have been shown to adversely impact health through a number of biological pathways associated with glucose metabolism. However, few studies have evaluated the associations between air pollution and glycosylated hemoglobin (HbA1c) levels. Further, no studies have evaluated these associations in US populations or investigated whether associations differ in diabetic as compared to non-diabetic populations. To address this knowledge gap, we investigated the associations between airborne fine particulate matter (PM2...
June 26, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28712175/corneal-complications-and-visual-impairment-in-vernal-keratoconjunctivitis-patients
#10
Abdus Salam Arif, Bushra Aaqil, Afsheen Siddiqui, Zainab Nazneen, Umer Farooq
BACKGROUND: Vernal kerato-conjunctivitis (VKC) is an infrequent but serious form of allergic conjunctivitis common in warm and humid areas where air is rich in allergens. It affects both eyes asymmetrically. Although VKC is a self-limiting disease but visions affecting corneal complications influence the quality of life in school children. The aim of this study was to list the corneal complications due to this condition and to find out the extent of visual impairment among VKC patients...
January 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28712086/pilot-study-investigating-ambient-air-toxics-emissions-near-a-canadian-kraft-pulp-and-paper-facility-in-pictou-county-nova-scotia
#11
Emma Hoffman, Judith R Guernsey, Tony R Walker, Jong Sung Kim, Kate Sherren, Pantelis Andreou
Air toxics are airborne pollutants known or suspected to cause cancer or other serious health effects, including certain volatile organic compounds (VOCs), prioritized by the US Environmental Protection Agency (EPA). While several EPA-designated air toxics are monitored at a subset of Canadian National Air Pollution Surveillance (NAPS) sites, Canada has no specific "air toxics" control priorities. Although pulp and paper (P&P) mills are major industrial emitters of air pollutants, few studies quantified the spectrum of air quality exposures...
July 15, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28711845/the-impact-of-synoptic-circulation-on-air-quality-and-pollution-related-human-health-in-the-yangtze-river-delta-region
#12
Zhiheng Liao, Meng Gao, Jiaren Sun, Shaojia Fan
PM2.5 and O3 pollution are of concern for the Yangtze River Delta (YRD) region due to their adverse impact on human health. In conjunction with a complex distribution of emission sources, the synoptic circulation conditions control the temporal and spatial variability of air pollution levels and hence the pollution-related health burdens. In this study, a long-term synoptic circulation catalogue is developed by applying the automated Lamb weather type method to the ECMWF mean sea level pressure reanalysis for the YRD region during 2013-2016...
July 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28711303/measurement-techniques-of-exposure-to-nanomaterials-in-the-workplace-for-low-and-medium-income-countries-a-systematic-review
#13
REVIEW
Fabio Boccuni, Diana Gagliardi, Riccardo Ferrante, Bruna Maria Rondinone, Sergio Iavicoli
Nanotechnology offers many opportunities but there is still considerable uncertainty about the health risks and how to assess these.In the field of risk analysis for workers potentially exposed to nano-objects and their agglomerates and aggregates (NOAA) different methodological approaches to measure airborne NOAA have been proposed.This study proposes a systematic review of scientific literature on occupational exposure to NOAA in the workplace with the aim to identify techniques of exposure measurement to be recommended in low- and medium-income countries...
June 27, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28711265/feeding-a-concentrate-rich-in-rapeseed-oil-improves-fatty-acid-composition-and-flavor-in-norwegian-goat-milk
#14
R A Inglingstad, S Skeie, G E Vegarud, T G Devold, Y Chilliard, M Eknæs
Impaired quality due to a high content of free fatty acids (FFA) and off-flavors has caused challenges in the development of Norwegian goat milk products. The present study aimed to examine the effect of lipid-supplemented concentrates on milk fat content, fatty acid composition, FFA, lipoprotein lipase activity, sensory properties, and size of milk fat globules of goat milk. Thirty goats assigned to 3 experimental groups were fed different concentrates from 60 d in milk (DIM) until late lactation (230 DIM)...
July 12, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28710612/-diagnostic-quality-of-triage-algorithms-for-mass-casualty-incidents
#15
A R Heller, N Salvador, M Frank, J Schiffner, R Kipke, C Kleber
BACKGROUND: Regarding survival and quality of life, recent mass casualty incidents have once more emphasized the importance of early identification of the correct degree of injury or illness, to enable prioritizing treatment of patients and transportation to an appropriate hospital. The present study investigated international triage algorithms in terms of sensitivity (SE) and specificity (SP) as well as the process duration in a relevant emergency patient cohort. METHODS: A total of 500 consecutive air rescue missions were evaluated by means of standardized patient records...
July 14, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/28710404/assuring-quality-in-microplastic-monitoring-about-the-value-of-clean-air-devices-as-essentials-for-verified-data
#16
Charlotte Wesch, Anna Maria Elert, Manuel Wörner, Ulrike Braun, Roland Klein, Martin Paulus
Avoiding aerial microfibre contamination of environmental samples is essential for reliable analyses when it comes to the detection of ubiquitous microplastics. Almost all laboratories have contamination problems which are largely unavoidable without investments in clean-air devices. Therefore, our study supplies an approach to assess background microfibre contamination of samples in the laboratory under particle-free air conditions. We tested aerial contamination of samples indoor, in a mobile laboratory, within a laboratory fume hood and on a clean bench with particles filtration during the examining process of a fish...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28710327/smoke-free-signage-in-public-parks-impacts-on-smoking-behaviour
#17
Heather N Platter, Steven B Pokorny
OBJECTIVE: Behavioural interventions, such as smoke-free signage, are used to support air quality in public outdoor spaces that are not protected by a smoke-free policy, such as states with preemptive clause legislation. However, there is little evidence of the effectiveness of these interventions. This paper is an evaluation of whether smoke-free signage posted in public parks altered smoking behaviours of park patrons. METHODS: A time-series quasi-experimental design was used...
July 14, 2017: Tobacco Control
https://www.readbyqxmd.com/read/28709967/advances-in-asthma-2016-designing-individualized-approaches-to-management
#18
William C Anderson, Andrea Apter, Cullen M Dutmer, Daniel A Searing, Stanley J Szefler
In this years Advances in Asthma review we discuss viral infections in asthma and potential therapeutic agents, the microbiome, novel genetic associations with asthma, air quality and climate effects on asthma, exposures during development and long term sequelae of childhood asthma, patient centered outcome research, and precision medicine. In addition, we discuss application of biomarkers to precision medicine, and new information on asthma medications. New evidence indicates that rhinovirus-triggered asthma exacerbations become more severe as the degree of sensitization to dust mite and mouse increase...
July 11, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28709103/end-user-perspective-of-low-cost-sensors-for-outdoor-air-pollution-monitoring
#19
REVIEW
Aakash C Rai, Prashant Kumar, Francesco Pilla, Andreas N Skouloudis, Silvana Di Sabatino, Carlo Ratti, Ansar Yasar, David Rickerby
Low-cost sensor technology can potentially revolutionise the area of air pollution monitoring by providing high-density spatiotemporal pollution data. Such data can be utilised for supplementing traditional pollution monitoring, improving exposure estimates, and raising community awareness about air pollution. However, data quality remains a major concern that hinders the widespread adoption of low-cost sensor technology. Unreliable data may mislead unsuspecting users and potentially lead to alarming consequences such as reporting acceptable air pollutant levels when they are above the limits deemed safe for human health...
July 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28708836/urban-air-quality-forecasting-based-on-multi-dimensional-collaborative-support-vector-regression-svr-a-case-study-of-beijing-tianjin-shijiazhuang
#20
Bing-Chun Liu, Arihant Binaykia, Pei-Chann Chang, Manoj Kumar Tiwari, Cheng-Chin Tsao
Today, China is facing a very serious issue of Air Pollution due to its dreadful impact on the human health as well as the environment. The urban cities in China are the most affected due to their rapid industrial and economic growth. Therefore, it is of extreme importance to come up with new, better and more reliable forecasting models to accurately predict the air quality. This paper selected Beijing, Tianjin and Shijiazhuang as three cities from the Jingjinji Region for the study to come up with a new model of collaborative forecasting using Support Vector Regression (SVR) for Urban Air Quality Index (AQI) prediction in China...
2017: PloS One
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