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Imelda K Moise, Claudia Riegel, Ephantus J Muturi
BACKGROUND: Understanding the major predictors of disease vectors such as mosquitoes can guide the development of effective and timely strategies for mitigating vector-borne disease outbreaks. This study examined the influence of selected environmental, weather and sociodemographic factors on the spatial and temporal distribution of the southern house mosquito Culex quinquefasciatus Say in New Orleans, Louisiana, USA. METHODS: Adult mosquitoes were collected over a 4-year period (2006, 2008, 2009 and 2010) using CDC gravid traps...
April 17, 2018: Parasites & Vectors
Ingrida Bagdanavičiūtė, Georg Umgiesser, Diana Vaičiūtė, Mariano Bresciani, Igor Kozlov, Anastasija Zaiko
Farming of shellfish and seaweeds is a tested tool for mitigating eutrophication consequences in coastal environments, however as many other marine economic activities it should be a subject of marine spatial planning for designating suitable sites. The present study proposes site selection framework for provisional zebra mussel farming in a eutrophic lagoon ecosystem, aimed primarily at remediation purposes. GIS-based multi-criteria approach was applied, combining data from empirical maps, numerical models and remote sensing to estimate suitability parameters...
April 11, 2018: Science of the Total Environment
María Eunice Quintero-Gallego, Mauricio Quintero-Angel, José Joaquín Vila-Ortega
Given that Land Use and Cover Changes (LUCC) and deforestation are activities with the highest anthropic intervention on ecosystems and increase the loss of biodiversity, this paper explores the LUCC and the main drivers of change in Andean mountains, taking a rural area located between the municipalities of Montenegro and Quimbaya (Quindío, Colombia) (1954-2009), as a case of study. Aerial photographs and geographic information systems (GIS) are used to create maps of LUCC, as well as a systemized search of information on LUCC and main drivers...
April 12, 2018: Science of the Total Environment
Georgina S A Trapp, Matthew Knuiman, Paula Hooper, Sarah Foster
INTRODUCTION: Cross-sectional studies have reported associations between liquor store availability and alcohol use among adolescents, but few prospective studies have confirmed this association. The aim of this study was to examine whether proximity to liquor stores at age 14 years was associated with alcohol intake at ages 14, 17, and 20 years. METHODS: Participants of the Western Australian Pregnancy Cohort (Raine) Study (n=999) self-reported alcohol intake at age 14 years (early adolescence, 2003-2005); age 17 years (middle adolescence, 2006-2008); and age 20 years (late adolescence, 2009-2011)...
April 12, 2018: American Journal of Preventive Medicine
Wei Chen, Hui Li, Enke Hou, Shengquan Wang, Guirong Wang, Mahdi Panahi, Tao Li, Tao Peng, Chen Guo, Chao Niu, Lele Xiao, Jiale Wang, Xiaoshen Xie, Baharin Bin Ahmad
The aim of the current study was to produce groundwater spring potential maps using novel ensemble weights-of-evidence (WoE) with logistic regression (LR) and functional tree (FT) models. First, a total of 66 springs were identified by field surveys, out of which 70% of the spring locations were used for training the models and 30% of the spring locations were employed for the validation process. Second, a total of 14 affecting factors including aspect, altitude, slope, plan curvature, profile curvature, stream power index (SPI), topographic wetness index (TWI), sediment transport index (STI), lithology, normalized difference vegetation index (NDVI), land use, soil, distance to roads, and distance to streams was used to analyze the spatial relationship between these affecting factors and spring occurrences...
April 10, 2018: Science of the Total Environment
Zhenming Zhang, Yunchao Zhou, Shijie Wang, Xianfei Huang
Karst areas are typical ecologically fragile areas, and stony desertification has become the most serious ecological and economic problems in these areas worldwide as well as a source of disasters and poverty. A reasonable sampling scale is of great importance for research on soil science in karst areas. In this paper, the spatial distribution of stony desertification characteristics and its influencing factors in karst areas are studied at different sampling scales using a grid sampling method based on geographic information system (GIS) technology and geo-statistics...
April 13, 2018: International Journal of Environmental Research and Public Health
Rahsan Yilmaz, Nihat Yumusak, Murat Sadic, Hasan I Atilgan, Meliha Korkmaz, Faruk Bozkaya
OBJECTIVE: The aim of this study was to investigate histopathological changes and biodistribution of iodine-131 (I) in the gastrointestinal system (GIS) and also Na/I Symporter (NIS) presence by immunohistochemically in the experimental treatment of rats with radioactive iodine (RAI). MATERIALS AND METHODS: Rats were divided into experimental and control groups as random early group 2 (24 h), intermediate group 3 (3 weeks), and late period group 4 (3 months). Experimental groups were administered 100 MBq (∼3 mCi, 12 mCi/kg) by orogastric route with orogastric tube...
April 12, 2018: Nuclear Medicine Communications
Tomoya Itatani, Ryo Horiike, Hisao Nakai, Kaoru Kyota, Keiko Tsukasaki
There has been a noticeable population decline in the Noto area. The Ministry of Land, Infrastructure, Transport and Tourism has determined the population size necessary for the establishment of daily living-related service businesses and, if the population falls below this, there is a possibility of businesses withdrawing from the area. In this research, we examine the number of home visit and daycare businesses established in the Noto area in 2025, using the geographic information system (GIS). The number of sites of businesses established was calculated using data published by the National Institute of Population and Social Security Research, and the Ministry of Land, Infrastructure, Transport and Tourism...
March 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Ryo Horiike, Tomoya Itatani, Hisao Nakai, Fumie Shirai
In order to clarify the characteristics of the area where the visiting nursing station is located, we conducted a study to identify the regional characteristics of the visiting nursing station in Ishikawa Prefecture, using geographical information system(GIS). We mapped the elderly population, aging rate, and location data for the visiting nursing station using QGIS, and created trade areas(Voronoi diagrams). The aging rate for each trade area is 22.4%(min 8.8% to max 44.6%), about 5 times. The difference in area is about 850 times as large as the central value of 9...
March 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Hongmei Wang, Shihai Lv, Zhaoyan Diao, Baolu Wang, Han Zhang, Caihong Yu
The current exposure-effect curves describing sandstorm PM10 exposure and the health effects are drawn roughly by the outdoor concentration (OC), which ignored the exposure levels of people's practical activity sites. The main objective of this work is to develop a novel approach to quantify human PM10 exposure by their socio-categorized micro-environment activities-time weighed (SCMEATW) in strong sandstorm period, which can be used to assess the exposure profiles in the large-scale region. Types of people's SCMEATW were obtained by questionnaire investigation...
April 12, 2018: Environmental Science and Pollution Research International
Jue Wang, Mei-Po Kwan, Yanwei Chai
Scholars in the fields of health geography, urban planning, and transportation studies have long attempted to understand the relationships among human movement, environmental context, and accessibility. One fundamental question for this research area is how to measure individual activity space, which is an indicator of where and how people have contact with their social and physical environments. Conventionally, standard deviational ellipses, road network buffers, minimum convex polygons, and kernel density surfaces have been used to represent people's activity space, but they all have shortcomings...
April 9, 2018: International Journal of Environmental Research and Public Health
Jeffrey D Dawson, Elizabeth Bair, Nazan Askan, Kelly Sewell, Jon Tippin, Matthew Rizzo
In naturalistic studies, Global Positioning System (GPS) data and date/time stamps can link driver exposure to specific environments (e.g., road types, speed limits, night driving, etc.), providing valuable context for analyzing critical events, such as crashes, near crashes, and breaches of accelerometer limits. In previous work, we showed how to automate this contextualization, using GPS data obtained at 1 Hz and merging this with Geographic Information Systems (GIS) databases maintained by the Iowa Department of Transportation (DOT)...
June 2017: Proceedings of the ... International Driving Symposium on Human Factors in Driver Assessment, Training, and Vehicle Design
Ali Mohammadi, Ali Valinejadi, Sara Sakipour, Morteza Hemmat, Javad Zarei, Hesamedin Askari Majdabadi
BACKGROUND: Rural health houses constitute a major provider of some primary health services in the villages of Iran. Given the challenges of providing health services in rural areas, health houses should be established based on the criteria of health network systems (HNSs). The value of these criteria and their precedence over others have not yet been thoroughly investigated. The present study was conducted to propose a model for improving the distribution of rural health houses in HNSs...
August 27, 2017: International Journal of Health Policy and Management
V A Crooks, M Giesbrecht, H Castleden, N Schuurman, M Skinner, A Williams
BACKGROUND: Health service administrators make decisions regarding how to best use limited resources to have the most significant impact. Service siting models are tools that can help in this capacity. Here we build on our own mixed-method service siting model focused on identifying rural Canadian communities most in need of and ready for palliative care service enhancement through incorporating new community-driven insights. METHODS: We conducted 40 semi-structured interviews with formal and informal palliative care providers from four purposefully selected rural communities across Canada...
April 6, 2018: BMC Palliative Care
Tri Wulandari Kesetyaningsih, Sri Andarini, Sudarto, Henny Pramoedyo
Background: Dengue is a disease related to the environment that spreads rapidly. Prevention movement is considered ineffective; therefore, a more efficient early warning system is required. It is required strongly correlated variables to as predictor in early warning system. This study aims to identify the environmental conditions associated with dengue. Materials and methods: This ecological study was conducted on five sub-districts selected based on the trend of the incidence...
2018: African Journal of Infectious Diseases
Hao Yu, Mingyue Liu, Baojia Du, Zongming Wang, Liangjun Hu, Bai Zhang
Soil salinity and sodicity can significantly reduce the value and the productivity of affected lands, posing degradation, and threats to sustainable development of natural resources on earth. This research attempted to map soil salinity/sodicity via disentangling the relationships between Landsat 8 Operational Land Imager (OLI) imagery and in-situ measurements (EC, pH) over the west Jilin of China. We established the retrieval models for soil salinity and sodicity using Partial Least Square Regression (PLSR)...
March 31, 2018: Sensors
Maciej Marcin Nowak, Katarzyna Pędziwiatr
The increasing human pressure on the environment requires effective protection activities. One way to stop the degradation of natural resources is the presence of woody vegetation networks, mainly linear in character, called linear woody features, greenways or tree belts. These objects, thanks to the many natural and economic functions they serve, enable the realization of sustainable development policy. To properly design a greenway network, the natural conditions and degree of environmental degradation in a given area must first be evaluated...
March 31, 2018: Journal of Environmental Management
Rakesh Mandal, Shreekant Kesari, Vijay Kumar, Pradeep Das
BACKGROUND: Visceral leishmaniasis (VL) in Bihar State (India) continues to be endemic, despite the existence of effective treatment and a vector control program to control disease morbidity. A clear understanding of spatio-temporal distribution of VL may improve surveillance and control implementation. This study explored the trends in spatio-temporal dynamics of VL endemicity at a meso-scale level in Vaishali District, based on geographical information systems (GIS) tools and spatial statistical analysis...
April 2, 2018: Parasites & Vectors
Laura Foglia, Iacopo Borsi, Steffen Mehl, Giovanna De Filippis, Massimiliano Cannata, Enric Vasquez-Suñe, Rotman Criollo, Rudy Rossetto
No abstract text is available yet for this article.
March 31, 2018: Ground Water
Linda D Ruiz, Susan D McMahon, Leonard A Jason
In recent years, the quality of education available to children has become increasingly dependent on the social and economic demographics of neighborhoods in which the children live. This study assesses the role of community violence in explaining the relation between socio-economic status (SES) and academic outcomes and the potential of positive school climate to promote academic achievement. With a sample of 297 Chicago public elementary schools, we examine community-level and school-level data and use Geographic Information Systems (GIS) mapping to illustrate how school academic achievement coincides with neighborhood economics and crime statistics...
March 30, 2018: American Journal of Community Psychology
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