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https://www.readbyqxmd.com/read/29161803/modeling-the-effects-of-pollutant-emissions-from-large-industrial-complexes-on-benzene-toluene-and-xylene-btx-concentrations-in-urban-areas
#1
Jin-Hee Bang, Inbo Oh, Soontae Kim, Seunghee You, Yangho Kim, Ho-Jang Kwon, Geun-Bae Kim
This study utilized the Community Multi-scale Air Quality (CMAQ) model to simulate the spatial distribution of benzene, toluene, and xylene (BTX) concentrations in Ulsan metropolitan region (UMR), where large national industrial complexes (IC) are located. Through controlling the pollutant emissions in major IC, this study has performed a quantitative analysis on the influence of pollutant emissions from the IC on the BTX concentrations in surrounding urban areas. The seasonal modeling results indicated that the average BTX concentrations were high around the petrochemical complexes, with higher concentrations in the surrounding urban areas during the summer...
November 20, 2017: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/29161675/a-comparison-of-two-digestion-methods-for-assessing-heavy-metals-level-in-urban-soils-influenced-by-mining-and-industrial-activities
#2
Khaled A M Alsaleh, Helmut Meuser, Adel R A Usman, Mohammad I Al-Wabel, Abdullah S Al-Farraj
A comparison between two digestion methods of hot plate Hossner (total-total) and USEPA method 3051 (total-recoverable) was carried out to suggest a proper method for determining nine heavy metals (Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn) content of three urban soils affected by mining (Mahd AD'Dahab) or industrial activities (Riyadh and Jubail) at Saudi Arabia. The results showed no significant differences between two digestion methods for Cd, Cu, Pb and Zn in soils affected by mining and for Cr, Cu, Pb and Zn in soils affected by industrial activities...
November 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29161656/comparing-objective-measures-of-the-built-environment-in-their-associations-with-youth-physical-activity-and-sedentary-behavior-across-heterogeneous-geographies
#3
Melissa N Poulsen, Emily A Knapp, Annemarie G Hirsch, Lisa Bailey-Davis, Jonathan Pollak, Brian S Schwartz
We compared two strategies for measuring built environment features in their associations with youth physical activity and sedentary behavior across heterogeneous geographies of Pennsylvania. Physical activity environments of communities representing a rural-to-urban gradient were characterized through direct observation and spatially referenced archival data subjected to confirmatory factor analysis. Stratified regression analyses assessed associations between environmental measures and behavioral outcomes by community type...
November 17, 2017: Health & Place
https://www.readbyqxmd.com/read/29161601/characterizing-emission-rates-of-regulated-pollutants-from-model-year-2012-heavy-duty-diesel-vehicles-equipped-with-dpf-and-scr-systems
#4
Yu Jiang, Jiacheng Yang, David Cocker, Georgios Karavalakis, Kent C Johnson, Thomas D Durbin
The regulated emissions of five 2012 and newer, low-mileage, heavy-duty Class 8 diesel trucks equipped with diesel particulate filters (DPFs) and selective catalytic reduction (SCR) systems were evaluated over test cycles representing urban, highway, and stop-and-go driving on a chassis dynamometer. NOx emissions over the Urban Dynamometer Driving Schedule (UDDS) ranged from 0.495 to 1.363g/mi (0.136 to 0.387g/bhp-hr) for four of the normal emitting trucks. For those trucks, NOx emissions were lowest over the cruise (0...
November 18, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29161487/virological-surveillance-of-aedes-stegomyia-aegypti-and-aedes-stegomyia-albopictus-as-support-for-decision-making-for-dengue-control-in-medell%C3%A3-n
#5
Juliana Pérez-Pérez, William H Sanabria, Carolina Restrepo, Raúl Rojo, Enrique Henao, Omar Triana, Ana María Mejía, Sandra M Castaño, Guillermo L Rúa-Uribe
INTRODUCTION: Dengue represents an important public health problem in Colombia. No treatment is available and the vaccine has not been approved in all countries, hence, actions should be strengthened to mitigate its impact through the control of Aedes aegypti, the vector mosquito. In Colombia, surveillance is done using entomological indexes and case notification, which is usually informed late, leading to untimely interventions. Viral detection in urban mosquitoes using molecular techniques provides more accurate entomological information for decision-making...
March 29, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/29161485/aedes-albopictus-skuse-1894-infected-with-the-american-asian-genotype-of-dengue-type-2-virus-in-medell%C3%A3-n-suggests-its-possible-role-as-vector-of-dengue-fever-in-colombia
#6
Andrés Gómez-Palacio, Juan Suaza-Vasco, Sandra Castaño, Omar Triana, Sandra Uribe
INTRODUCTION: Aedes aegypti and Ae. albopictus are recognized vectors of dengue, yellow fever, chikungunya and Zika arboviruses in several countries worldwide. In Colombia, Ae. albopictus geographical distribution has increased to include highly populated cities such as Cali and Medellín. Although this species has been frequently found in urban and semi-urban zones in the country, its role as vector of the dengue fever is poorly known. OBJECTIVE: To identify the presence of Ae...
March 29, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/29161476/-spatial-distribution-of-aedes-aegypti-diptera-culicidae-in-the-rural-area-of-two-municipalities-of-cundinamarca-colombia
#7
Laura Cabezas, Wilson Cabanzo, Fernando Santa, Victor Alberto Olano, Diana Sarmiento, Sandra Vargas, Juan Felipe Jaramillo, Thor-Axel Stenstrom, Hans J Overgaard, María Inés Matiz
INTRODUCTION: It is difficult to adapt or create new strategies for dengue control in rural areas due to the dispersion of homes and the lack of knowledge about the presence and behavior of the vector in these areas. Spatial data analysis could help understand time and space dynamics related to the transmission of vector-borne diseases in rural areas and, thus, contribute to the prevention and control of dengue. OBJECTIVE: To determine the probability of the presence of the dengue vector Aedes aegypti in the rural area of the municipalities of Anapoima and La Mesa, in the central area of Colombia...
March 29, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/29161454/religious-and-spiritual-practices-among-home-less-urban-american-indians-and-alaska-natives-with-severe-alcohol-problems
#8
Dennis C Wendt, Susan E Collins, Lonnie A Nelson, Kelly Serafini, Seema L Clifasefi, Dennis M Donovan
Engagement in religious and spiritual practices may be protective for homeless individuals with alcohol-related problems. However, little is known in this regard for urban-dwelling American Indians and Alaska Natives (AI/ANs) who have disproportionately high rates of homelessness and co-occurring alcohol use problems. Using secondary data from a nonrandomized controlled study testing a Housing First intervention, AI/AN participants (n = 52) and non-AI/AN participants (n = 82) were compared on demographic variables, alcohol use problems, religious affiliations, and religious/spiritual practices (importance, frequency, and type)...
2017: American Indian and Alaska Native Mental Health Research: the Journal of the National Center
https://www.readbyqxmd.com/read/29161270/tracking-urban-human-activity-from-mobile-phone-calling-patterns
#9
Daniel Monsivais, Asim Ghosh, Kunal Bhattacharya, Robin I M Dunbar, Kimmo Kaski
Timings of human activities are marked by circadian clocks which in turn are entrained to different environmental signals. In an urban environment the presence of artificial lighting and various social cues tend to disrupt the natural entrainment with the sunlight. However, it is not completely understood to what extent this is the case. Here we exploit the large-scale data analysis techniques to study the mobile phone calling activity of people in large cities to infer the dynamics of urban daily rhythms. From the calling patterns of about 1,000,000 users spread over different cities but lying inside the same time-zone, we show that the onset and termination of the calling activity synchronizes with the east-west progression of the sun...
November 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/29161256/hiv-pre-exposure-prophylaxis-and-early-antiretroviral-treatment-among-female-sex-workers-in-south-africa-results-from-a-prospective-observational-demonstration-project
#10
Robyn Eakle, Gabriela B Gomez, Niven Naicker, Rutendo Bothma, Judie Mbogua, Maria A Cabrera Escobar, Elaine Saayman, Michelle Moorhouse, W D Francois Venter, Helen Rees
BACKGROUND: Operational research is required to design delivery of pre-exposure prophylaxis (PrEP) and early antiretroviral treatment (ART). This paper presents the primary analysis of programmatic data, as well as demographic, behavioural, and clinical data, from the TAPS Demonstration Project, which offered both interventions to female sex workers (FSWs) at 2 urban clinic sites in South Africa. METHODS AND FINDINGS: The TAPS study was conducted between 30 March 2015 and 30 June 2017, with the enrolment period ending on 31 July 2016...
November 2017: PLoS Medicine
https://www.readbyqxmd.com/read/29161167/depression-and-marijuana-use-among-a-sample-of-urban-females-is-stage-of-development-important
#11
Leah Floyd Campbell
BACKGROUND: Increasing rates of marijuana use and high rates of depression among females are major public health concerns and ambiguous study results suggest a complex association between the two. Inconsistent findings may be due to differences in sample characteristics (e.g., females vs. males) and result from differences in the relationship over time (i.e., across developmental stages). OBJECTIVES: Presently, the extent to which the relationship between depression and marijuana use differed for females in emerging adulthood, compared to young adult females, was examined...
November 21, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/29160964/examining-depression-in-patients-on-dialysis
#12
Allison A Treadwell
This study measured the prevalence of depression in 39 patients on hemodialysis and peritoneal dialysis in two urban outpatient facilities in the southeastern United States. Additionally, it evaluated the number of patients who sought and scheduled a mental health evaluation after screening and education. The prevalence of mild to severely depressed individuals among participants in this study was 36%, affirming previous findings of depressive symptoms in the ESRD population. Results suggest that patients with ESRD are at a higher risk for depression than the general population...
July 2017: Nephrology Nursing Journal: Journal of the American Nephrology Nurses' Association
https://www.readbyqxmd.com/read/29160826/the-communication-awareness-relationships-and-empowerment-c-a-r-e-model-an-effective-tool-for-engaging-urban-communities-in-community-based-participatory-research
#13
Joniqua Ceasar, Marlene H Peters-Lawrence, Valerie Mitchell, Tiffany M Powell-Wiley
Little is known about recruitment methods for racial/ethnic minority populations from resource-limited areas for community-based health and needs assessments, particularly assessments that incorporate mobile health (mHealth) technology for characterizing physical activity and dietary intake. We examined whether the Communication, Awareness, Relationships and Empowerment (C.A.R.E.) model could reduce challenges recruiting and retaining participants from faith-based organizations in predominantly African American Washington, D...
November 21, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29160811/relationships-between-vacant-homes-and-food-swamps-a-longitudinal-study-of-an-urban-food-environment
#14
Yeeli Mui, Jessica C Jones-Smith, Rachel L J Thornton, Keshia Pollack Porter, Joel Gittelsohn
Research indicates that living in neighborhoods with high concentrations of boarded-up vacant homes is associated with premature mortality due to cancer and diabetes, but the mechanism for this relationship is unclear. Boarded-up housing may indirectly impact residents' health by affecting their food environment. We evaluated the association between changes in vacancy rates and changes in the density of unhealthy food outlets as a proportion of all food outlets, termed the food swamp index, in Baltimore, MD (USA) from 2001 to 2012, using neighborhood fixed-effects linear regression models...
November 21, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29160714/understanding-aqueous-stability-and-filtration-capability-of-mos2-membranes
#15
Zhongying Wang, Qingsong Tu, Sunxiang Zheng, Jeffrey J Urban, Shaofan Li, Baoxia Mi
Membranes made of layer-stacked two-dimensional molybdenum disulfide (MoS2) nanosheets have recently shown great promise for water filtration. At present, the reported water fluxes vary significantly while the accountable structure and properties of MoS2 nanochannels are largely unknown. This paper aims to mechanistically relate the performance of MoS2 membranes to the size of their nanochannels in different hydration states. We discovered that fully hydrated MoS2 membranes retained a 1.2-nm interlayer spacing (or 0...
November 21, 2017: Nano Letters
https://www.readbyqxmd.com/read/29160510/changes-in-the-epidemiology-of-visceral-leishmaniasis-in-brazil-from-2001-to-2014
#16
Lisiane Lappe Dos Reis, Antônio Alcirley da Silva Balieiro, Fernanda Rodrigues Fonseca, Maria Jacirema Ferreira Gonçalves
INTRODUCTION: Visceral leishmaniasis (VL) is a neglected disease, with territorial expansion and regional differences in Brazil that require explanation. This study aimed to describe changes in the epidemiology of VL in Brazil from 2001 to 2014. METHODS: The incidence rates, sociodemographic and clinical data, and case evolution were subgrouped from 2001 to 2006 and from 2007 to 2014 and presented descriptively. Spatial distribution of disease incidence rates and changes in the spatial and temporal pattern were examined...
September 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29160435/risk-factors-in-cardiovascular-disease-mortality-associated-with-high-exposure-to-vehicular-traffic
#17
Poliany Cristiny de Oliveira Rodrigues, Emerson Soares Dos Santos, Sandra de Souza Hacon, Eliane Ignotti
OBJECTIVE: To identify areas and risk factors in cardiovascular disease (CD) mortality associated with air pollution from high exposure to vehicular traffic. METHODS: Cross-sectional study of CD mortality in 2,617 individuals aged 45-85 years living in the urban area of Cuiabá and Várzea Grande, Mato Grosso State, Brazil, between 2009 and 2011. We used the residential proximity of up to 150 meters to a roadway of great vehicle flow as a proxy of high exposure to air pollution from vehicular traffic...
July 2017: Revista Brasileira de Epidemiologia, Brazilian Journal of Epidemiology
https://www.readbyqxmd.com/read/29160434/brazilian-health-survey-2013-relation-between-alcohol-use-and-sociodemographic-characteristics-by-sex-in-brazil
#18
Ísis Eloah Machado, Maristela Goldnadel Monteiro, Deborah Carvalho Malta, Francisco Carlos Félix Lana
OBJECTIVE: To analyze sociodemographic factors associated with alcohol use according to gender in Brazil. METHODS: Cross-sectional study using data from 2013 Brazilian Health Survey about 60,202 adults. We analyzed recent alcohol use and heavy episodic drinking in the 30 days prior to the research stratified by gender. The covariates were: age, educational level, skin color, marital status, and place of residence. RESULTS: The prevalence of recent alcohol use was 26...
July 2017: Revista Brasileira de Epidemiologia, Brazilian Journal of Epidemiology
https://www.readbyqxmd.com/read/29160433/individual-and-contextual-level-factors-associated-with-client-initiated-hiv-testing
#19
Claudia Renata Dos Santos Barros, Eliana Miura Zucchi, Lilia Blima Schraiber, Ivan França
BACKGROUND: Knowing the reasons for seeking HIV testing is central for HIV prevention. Despite the availability of free HIV counseling and testing in Brazil, coverage remains lacking. METHODS: Survey of 4,760 respondents from urban areas was analyzed. Individual-level variables included sociodemographic characteristics; sexual and reproductive health; HIV/AIDS treatment knowledge and beliefs; being personally acquainted with a person with HIV/AIDS; and holding discriminatory ideas about people living with HIV...
July 2017: Revista Brasileira de Epidemiologia, Brazilian Journal of Epidemiology
https://www.readbyqxmd.com/read/29160193/fertility-transition-in-sri-lanka-is-it-a-temporary-phenomenon
#20
E L Sunethra J Perera
This paper examines the fertility transition and its recent dynamics in Sri Lanka using data from Demographic and Health Surveys and Population Censuses. Fertility trends and patterns were analysed for two periods: 1953-2000 and 2000-2012. The findings revealed that Sri Lanka's fertility transition has been relatively rapid and has taken place over a period of about four decades to reach replacement level. Social and health-related factors, including decline in maternal and infant mortality, increase in women's education, changes in institutions, reproductive values and behaviour, and increased contraceptive use all contributed to bringing down the fertility level by 2000...
November 2017: Journal of Biosocial Science
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