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https://www.readbyqxmd.com/read/28534004/integrating-health-and-transportation-in-nashville-tennessee-usa-from-policy-to-projects
#1
Leslie A Meehan, Geoffrey P Whitfield
The Nashville Area Metropolitan Planning Organization (MPO) is among the first MPOs in the United States to recognize the interplay of transportation and public health, particularly regarding physical activity, air pollution, and traffic crashes. The Nashville MPO has taken a multifaceted approach to simultaneously improve the transportation system, quality of life, and health status of the region's population. The purpose of this paper is to describe the multiple programs and projects that the MPO has undertaken to this end, so that other cities might learn from Nashville's example...
March 2017: Journal of Transport & Health
https://www.readbyqxmd.com/read/28531092/effective-silicon-nanowire-arrays-wo3-core-shell-photoelectrode-for-neutral-ph-water-splitting
#2
Zhen Chen, Ning Minghui, Ge Ma, Qingguo Meng, Yongguang Zhang, Jinwei Gao, Mingliang Jin, Zhihong Chen, Mingzhe Yuan, Xin Wang, Junming Liu, Guofu Zhou
We report the first demonstration of a high-efficiency photoelectrochemical (PEC) water splitting reaction using a novel Si NWs/WO3 core/shell photoanode prepared by a mild and inexpensive metal-catalyzed electroless etching (MCEE) process followed by dip-coating, airing and annealing methods. The dense and vertically aligned Si NWs/WO3 core/shell nanostructure were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD). In comparison to planar n-Si, Si NWs and planar Si/WO3, the Si NWs/WO3 samples showed significantly enhanced photocurrent over the entire potential sweep range...
May 22, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28529496/treatment-of-the-mal-de-debarquement-syndrome-a-1-year-follow-up
#3
Mingjia Dai, Bernard Cohen, Catherine Cho, Susan Shin, Sergei B Yakushin
The mal de debarquement syndrome (MdDS) is a movement disorder, occurring predominantly in women, is most often induced by passive transport on water or in the air (classic MdDS), or can occur spontaneously. MdDS likely originates in the vestibular system and is unfamiliar to many physicians. The first successful treatment was devised by Dai et al. (1), and over 330 MdDS patients have now been treated. Here, we report the outcomes of 141 patients (122 females and 19 males) treated 1 year or more ago. We examine the patient's rocking frequency, body drifting, and nystagmus...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28527418/atmospheric-pcdd-f-concentration-and-source-apportionment-in-typical-rural-agent-orange-hotspots-and-industrial-areas-in-vietnam
#4
Tuan Hung Ngo, To Thi Hien, Ngo Thi Thuan, Nguyen Hung Minh, Kai Hsien Chi
Vietnam has a double burden of dioxin from both industrial sources and historical sources. To evaluate the concentration of PCDD/Fs in ambient air in different areas of Vietnam and their possible sources, atmospheric samples were collected from three areas namely Son La (rural area) and Da Nang (harbor - Agent Orange hotspot area), and Ho Chi Minh City (metropolitan - industrial city). Vapor and solid phases of PCDD/Fs were collected and analyzed following the TO-9A sampling method. Principal Component Analysis and Positive Matrix Factorization model were applied to characterize the possible source...
May 11, 2017: Chemosphere
https://www.readbyqxmd.com/read/28526196/use-of-a-numerical-simulation-approach-to-improve-the-estimation-of-air-water-exchange-fluxes-of-polycyclic-aromatic-hydrocarbons-in-a-coastal-zone
#5
I-Chien Lai, Chon-Lin Lee, Fung-Chi Ko, Ju-Chieh Lin, Hu-Ching Huang, Ruei-Feng Shiu
The air-water exchange is important for determining the transport, fate, and chemical loading of polycyclic aromatic hydrocarbons (PAHs) in the atmosphere and in aquatic systems. Investigations of PAH air-water exchange are mostly based on observational data obtained using complicated field sampling processes. This study proposes a new approach to improve the estimation of long-term PAH air-water exchange fluxes by using a multivariate regression model to simulate hourly gaseous PAH concentrations. Model performance analysis and the benefits from this approach indicate its effectiveness at improving the flux estimations and at decreasing the field sampling difficulty...
May 16, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28521101/creation-of-a-short-range-ordered-two-dimensional-electron-gas-channel-in-al2o3-in2o3-interfaces
#6
Sang Yeon Lee, Jinseo Kim, Ayoung Park, Jucheol Park, Hyungtak Seo
The tuning of electrical properties in oxides via surface and interfacial two-dimensional electron gas (2DEG) channels is of great interest, as they reveal the extraordinary transition from insulating or semiconducting characteristics to metallic conduction or superconductivity enabled by the ballistic transport of spatially confined electrons. However, realizing the practical aspects of this exotic phenomenon toward short-range ordered and air-stable 2DEG channels remains a great challenge. At the heterointerface formed after deposition of an Al2O3 layer on a nanocrystalline In2O3 layer, a dramatic improvement in carrier conduction equivalent to metallic conduction is obtained...
May 22, 2017: ACS Nano
https://www.readbyqxmd.com/read/28520742/experimental-outgassing-of-toxic-chemicals-to-simulate-the-characteristics-of-hazards-tainting-globally-shipped-products
#7
Lygia Therese Budnik, Nadine Austel, Sabrina Gadau, Stefan Kloth, Jens Schubert, Harald Jungnickel, Andreas Luch
Ambient monitoring analyses may identify potential new public health hazards such as residual levels of fumigants and industrial chemicals off gassing from products and goods shipped globally. We analyzed container air with gas chromatography coupled to mass spectrometry (TD-2D-GC-MS/FPD) and assessed whether the concentration of the volatiles benzene and 1,2-dichloroethane exceeded recommended exposure limits (REL). Products were taken from transport containers and analyzed for outgassing of volatiles. Furthermore, experimental outgassing was performed on packaging materials and textiles, to simulate the hazards tainting from globally shipped goods...
2017: PloS One
https://www.readbyqxmd.com/read/28518009/aeromedical-evacuation-using-extra-corporeal-life-support-after-resuscitated-cardiac-arrest
#8
David Gerard, Hervé Raffin, Guillaume Lebreton
BACKGROUND: Extra corporeal life support (ECLS) is presently first line therapy for refractory cardiogenic shock. Mobile circulatory support teams implant ECLS or extra corporeal membrane oxygenation (ECMO) in patients in the hospital without circulatory support. These patients are then transported to specialized centers. Here we report a case of sending a mobile circulatory support team abroad, followed by air ambulance evacuation, which, to our knowledge, has never been used as part of medical assistance abroad...
April 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28518007/patient-centric-side-effect-risk-assessment-for-medications-used-during-aeromedical-evacuations
#9
Shana A Huntsberger, William P Butler, Richard R Chapleau
BACKGROUND: The U.S. Air Force performs more than 6000 aeromedical transport flights annually, both internationally and domestically. Many of these flights include patients requiring pain relief medications. The risk of side effects from such medications administered at altitude is unknown, but understanding these risks is vital when selecting the safest pain management strategies to achieve optimal postflight outcomes. METHODS: Using an evidence-based medication side effect risk assessment model, we compared our patient-centric approach to an aircrew-centric approach using medications approved for use in U...
April 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28516987/theoretical-investigations-into-the-charge-transfer-properties-of-thiophene-%C3%AE-substituted-naphthodithiophene-diimides-excellent-n-channel-and-ambipolar-organic-semiconductors
#10
Li-Fei Ji, Jian-Xun Fan, Shou-Feng Zhang, Ai-Min Ren
A theoretical study was carried out to investigate the electronic structures and the charge transport properties of a series of naphthodithiophene diimide (NDTI) thiophene α-substituted derivatives NDTI-X using density functional theory and classical Marcus charge transfer theory. This study deeply revealed the structure-property relationships by analyzing the intermolecular interactions in crystal structures of C8-NDTI and C8-NDTI-Cl thoroughly by using the Hirshfeld surface, QTAIM theories and symmetry-adapted perturbation theory (SAPT)...
May 18, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28516905/the-effects-of-forest-canopy-shading-and-turbulence-on-boundary-layer-ozone
#11
P A Makar, R M Staebler, A Akingunola, J Zhang, C McLinden, S K Kharol, B Pabla, P Cheung, Q Zheng
The chemistry of the Earth's atmosphere close to the surface is known to be strongly influenced by vegetation. However, two critical aspects of the forest environment have been neglected in the description of the large-scale influence of forests on air pollution: the reduction of photolysis reaction rates and the modification of vertical transport due to the presence of foliage. Here we show that foliage shading and foliage-modified vertical diffusion have a profound influence on atmospheric chemistry, both at the Earth's surface and extending throughout the atmospheric boundary layer...
May 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28514707/influence-of-fumigants-on-sunflower-seeds-characteristics-of-fumigant-desorption-and-changes-in-volatile-profiles
#12
Nadine Austel, Jens Schubert, Sabrina Gadau, Harald Jungnickel, Lygia T Budnik, Andreas Luch
Fumigation of transport containers is common practice to protect stored products from pests. Yet little is known about the desorption times and effects of the highly toxic gases used in this process. To shed light on the behavior of fumigants in real food, we treated sunflower seeds (Helianthus annuus L.) with 100ppm phosphine (PH3), methyl bromide (MeBr) or 1,2-dichloroethane (DCE) for 72h. The compound concentrations in the air were then analyzed by thermal desorption/2D gas chromatography coupled to mass spectrometry and flame photometric detection (TD-2D-GC-MS/FPD)...
April 29, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28510504/cardiopulmonary-exercise-testing-basics-of-methodology-and-measurements
#13
Alessandro Mezzani
Cardiopulmonary exercise testing adds measurement of ventilation and volume of oxygen uptake and exhaled carbon dioxide to routine physiological and performance parameters obtainable from conventional exercise testing, furnishing an all-round vision of the systems involved in both oxygen transport from air to mitochondria and its utilization during exercise. Peculiarities of cardiopulmonary exercise testing methodology are the use of ramp protocols and calibration procedures for flow meters and gas analyzers...
May 16, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28509774/the-role-of-the-anaesthesiologist-in-air-ambulance-medicine
#14
Stephen J M Sollid, Marius Rehn
PURPOSE OF REVIEW: The care administered on air ambulances has become increasing complex. This has led to a discussion among experts as to whether air ambulance travel should be manned by physicians. This review provides evidence in support of anaesthesiologists being the physician-leaders in air ambulance medicine, because of their training in advanced airway management, critical care, and resuscitation. RECENT FINDINGS: Successful prehospital care requires the ability to perform a complex set of advanced diagnostics and interventions...
May 13, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28502428/non-proximate-mass-spectrometry-using-a-heated-1-m-long-ptfe-tube-and-an-air-tight-apci-ion-source
#15
Dilshadbek T Usmanov, Kenzo Hiraoka, Hiroshi Wada, Masaya Matsumura, Sachiyo Sanada-Morimura, Hiroshi Nonami, Shinichi Yamabe
Direct and rapid trace-level gas analysis is highly needed in various fields such as safety and security, quality control, food analysis, and forensic medicine. In many cases, the real samples are bulky and are not accessible to the space-limited ion source of the mass spectrometer. In order to circumvent this problem, we developed an airtight atmospheric-pressure chemical ionization (APCI) ion source equipped with a flexible 1-m-long, 2-mm-i.d. PTFE sniffing tube. The ambient air bearing sample gas was sucked into the heated PTFE tube (130 °C) and was transported to the air-tight ion source without using any extra pumping system or a Venturi device...
June 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28501639/comparative-evaluation-of-thermal-decomposition-behavior-and-thermal-stability-of-powdered-ammonium-nitrate-under-different-atmosphere-conditions
#16
Man Yang, Xianfeng Chen, Yujie Wang, Bihe Yuan, Yi Niu, Ying Zhang, Ruoyu Liao, Zumin Zhang
In order to analyze the thermal decomposition characteristics of ammonium nitrate (AN), its thermal behavior and stability under different conditions are studied, including different atmospheres, heating rates and gas flow rates. The evolved decomposition gases of AN in air and nitrogen are analyzed with a quadrupole mass spectrometer. Thermal stability of AN at different heating rates and gas flow rates are studied by differential scanning calorimetry, thermogravimetric analysis, paired comparison method and safety parameter evaluation...
April 28, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28501016/role-of-climate-anomalies-on-decadal-variation-in-the-occurrence-of-wintertime-haze-in-the-yangtze-river-delta-china
#17
Jianming Xu, Luyu Chang, Fengxia Yan, JinHai He
The wintertime haze day (HD) in the Yangtze River Delta (YRD) region of China shows a significant upward trend during the past decades due to the rapid industrialization and urbanization. Besides the enhanced anthropogenic emission, climate change also plays the important role in the long term HD variations. In this study, the significant decadal variation of wintertime HD during the period 1960-2012 in YRD is examined by the empirical orthogonal function (EOF) analysis, featured as less HD occurrence before 1980 and more occurrence after 2000...
May 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28499771/the-key-role-of-the-meat-industry-in-transformation-to-a-low-carbon-climate-resilient-sustainable-economy
#18
Frank Rijsberman
Climate change, air pollution and refugees have become key global challenges threatening sustainability of lifestyles, economies and ecosystems. Agri-food systems are the number one driver of environmental change. Livestock production is the world's largest land user, responsible for half of greenhouse gas emissions from agri-food systems, and the source of repeated health crises. Poor diets have become the number one cause of ill health. Recommendations for a healthy diet emphasize plant-based food. Rapidly falling costs in information technology, biotechnology, renewable energy and battery technology will disrupt current energy and transportation systems and offer opportunities for responsible meat production...
April 26, 2017: Meat Science
https://www.readbyqxmd.com/read/28499681/is-nifedipine-as-a-tocolytic-effective-in-facilitating-in-utero-transfer
#19
Jodie Martin, Jodie Mills, David Stanley
OBJECTIVE: Previous studies have reported that air medical transfer of women in preterm labor can be safely accomplished, without preterm birth occurring; in fact, many women were later discharged without preterm birth occurring. The purpose of this study was to determine if nifedipine, when used as a tocolytic, is effective at facilitating in utero transfer of women in preterm labor in the Top End of the Northern Territory of Australia. METHODS: This was a retrospective descriptive study over a 3-year period of all women transported in preterm labor between 23 + 6 to 36 + 6 weeks' gestation of pregnancy (N = 325)...
May 2017: Air Medical Journal
https://www.readbyqxmd.com/read/28499510/effect-of-policy-change-on-the-use-of-long-distance-transport-and-follow-up-care-for-patients-with-traumatic-finger-amputations
#20
Michael T Nolte, Melissa J Shauver, Kevin C Chung, Aviram M Giladi
PURPOSE: In January 2006, the American College of Emergency Physicians released updated guidelines for air transfer. Digit amputation and near-amputation were no longer an indication for this costly service. We analyzed the effect of this update on the use of air transport and associated care outcomes for finger amputation patients and examined factors involved in providing follow-up care for these patients. METHODS: A retrospective chart review identified all patients treated for traumatic finger amputation between 1995 and 2012 at a major hand trauma referral center...
May 9, 2017: Journal of Hand Surgery
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