WorldWideScience

Sample records for urban food environment

  1. Urban environment and health: food security.

    Science.gov (United States)

    Galal, Osman; Corroon, Meghan; Tirado, Cristina

    2010-07-01

    The authors examine the impact of urbanization on food security and human health in the Middle East. Within-urban-population disparities in food security represent one of the most dramatic indicators of economic and health disparities. These disparities are reflected in a double burden of health outcomes: increasing levels of chronic disease as well as growing numbers of undernourished among the urban poor. These require further comprehensive solutions. Some of the factors leading to food insecurity are an overdependence on purchased food commodities, lack of sufficient livelihoods, rapid reductions in peripheral agricultural land, and adverse impacts of climate change. The Food and Agriculture Organization of the United Nations (FAO) Food Security Framework is used to examine and compare 2 cities in the Middle East: Amman, Jordan, and Manama, Bahrain.

  2. Measuring the food and built environments in urban centres

    DEFF Research Database (Denmark)

    Pomerleau, Joceline; Knai, Cecile; McKee, M

    2013-01-01

    Objectives: The authors designed an instrument to measure objectively aspects of the built and food environments in urban areas, the EURO-PREVOB Community Questionnaire, within the EU-funded project ‘Tackling the social and economic determinants of nutrition and physical activity for the prevention...... of obesity across Europe’ (EURO-PREVOB). This paper describes its development, reliability, validity, feasibility and relevance to public health and obesity research. Study design: The Community Questionnaire is designed to measure key aspects of the food and built environments in urban areas of varying...... levels of affluence or deprivation, within different countries. The questionnaire assesses (1) the food environment and (2) the built environment. Methods: Pilot tests of the EURO-PREVOB Community Questionnaire were conducted in five to 10 purposively sampled urban areas of different socio...

  3. The association between obesity and urban food environments.

    Science.gov (United States)

    Bodor, J Nicholas; Rice, Janet C; Farley, Thomas A; Swalm, Chris M; Rose, Donald

    2010-09-01

    Several studies have examined associations between the food retail environment and obesity, though virtually no work has been done in the urban South, where obesity rates are among the highest in the country. This study assessed associations between access to food retail outlets and obesity in New Orleans. Data on individual characteristics and body weight were collected by telephone interviews from a random sample of adults (N = 3,925) living in New Orleans in 2004-2005. The neighborhood of each individual was geo-mapped by creating a 2-km buffer around the center point of the census tract in which they lived. Food retailer counts were created by summing the total number of each food store type and fast food establishment within this 2-km neighborhood. Hierarchical linear models assessed associations between access to food retailers and obesity status. After adjusting for individual characteristics, each additional supermarket in a respondent's neighborhood was associated with a reduced odds for obesity (OR 0.93, 95% CI 0.88-0.99). Fast food restaurant (OR 1.01, 95% CI 1.00-1.02) and convenience store (OR 1.01, 95% CI 1.00-1.02) access were each predictive of greater obesity odds. An individual's access to food stores and fast food restaurants may play a part in determining weight status. Future studies with longitudinal and experimental designs are needed to test whether modifications in the food environment may assist in the prevention of obesity.

  4. The Food Environment in an Urban Mexican American Community

    OpenAIRE

    Lisabeth, Lynda D; Sánchez, Brisa N; Escobar, James; Hughes, Rebecca; Meurer, William J; Zuniga, Belinda; Garcia, Nelda; Brown, Devin L; Morgenstern, Lewis B

    2010-01-01

    The objective was to determine whether ethnic composition of neighborhoods is associated with number and type of food stores in an urban, Mexican American US community. Data were from a commercial food store data source and the US Census. Multivariate count models were used to test associations with adjustment for neighborhood demographics, income, and commercialization. Neighborhoods at the 75th percentile of percent Mexican American (76%) had nearly four times the number of convenience stor...

  5. ‘Obesogenic’ School Food Environments? An Urban Case Study in the Netherlands

    NARCIS (Netherlands)

    Timmermans, Joris; Dijkstra, Coosje; Kamphuis, Carlijn; Huitink, Marlijn; van der Zee, Egbert; Poelman, Maartje

    (1) Background: This study aimed to explore and define socio-economic (SES) differences in urban school food environments in The Netherlands. (2) Methods: Retail food outlets, ready-to-eat products, in-store food promotions and food advertisements in public space were determined within 400 m walking

  6. Relationships between Vacant Homes and Food Swamps: A Longitudinal Study of an Urban Food Environment.

    Science.gov (United States)

    Mui, Yeeli; Jones-Smith, Jessica C; Thornton, Rachel L J; Pollack Porter, Keshia; Gittelsohn, Joel

    2017-11-21

    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. Over the study period, the average food swamp index increased from 93.5 to 95.3 percentage points across all neighborhoods. Among non-African American neighborhoods, increases in the vacancy rate were associated with statistically significant decreases in the food swamp index (b = -0.38; 90% CI, -0.64 to -0.12; p -value: 0.015), after accounting for changes in neighborhood SES, racial diversity, and population size. A positive association was found among low-SES neighborhoods (b = 0.15; 90% CI, 0.037 to 0.27; p -value: 0.031). Vacant homes may influence the composition of food outlets in urban neighborhoods. Future research should further elucidate the mechanisms by which more distal, contextual factors, such as boarded-up vacant homes, may affect food choices and diet-related health outcomes.

  7. Development and evaluation of a food environment survey in three urban environments of Kunming, China

    Science.gov (United States)

    2014-01-01

    Background Given the rapid pace of urbanization and Westernization and the increasing prevalence of obesity, there is a need for research to better understand the influence of the built environment on overweight and obesity in world’s developing regions. Culturally-specific food environment survey instruments are important tools for studying changing food availability and pricing. Here, we present findings from an effort to develop and evaluate food environment survey instruments for use in a rapidly developing city in southwest China. Methods We developed two survey instruments (for stores and restaurants), each designed to be completed within 10 minutes. Two pairs of researchers surveyed a pre-selected 1-km stretch of street in each of three socio-demographically different neighborhoods to assess inter-rater reliability. Construct validity was assessed by comparing the food environments of the neighborhoods to cross-sectional height and weight data obtained on 575 adolescents in the corresponding regions of the city. Results 273 food establishments (163 restaurants and 110 stores) were surveyed. Sit-down, take-out, and fast food restaurants accounted for 40%, 21% and 19% of all restaurants surveyed. Tobacco and alcohol shops, convenience stores and supermarkets accounted for 25%, 12% and 11%, respectively, of all stores surveyed. We found a high percentage of agreement between teams (>75%) for all categorical variables with moderate kappa scores (0.4-0.6), and no statistically significant differences between teams for any of the continuous variables. More developed inner city neighborhoods had a higher number of fast food restaurants and convenience stores than surrounding neighborhoods. Adolescents who lived in the more developed inner neighborhoods also had a higher percentage of overweight, indicating well-founded construct validity. Depending on the cutoff used, 19% to 36% of male and 10% to 22% of female 16-year old adolescents were found to be overweight

  8. Development and evaluation of a food environment survey in three urban environments of Kunming, China.

    Science.gov (United States)

    Hua, Jenna; Seto, Edmund; Li, Yan; Wang, May C

    2014-03-06

    Given the rapid pace of urbanization and Westernization and the increasing prevalence of obesity, there is a need for research to better understand the influence of the built environment on overweight and obesity in world's developing regions. Culturally-specific food environment survey instruments are important tools for studying changing food availability and pricing. Here, we present findings from an effort to develop and evaluate food environment survey instruments for use in a rapidly developing city in southwest China. We developed two survey instruments (for stores and restaurants), each designed to be completed within 10 minutes. Two pairs of researchers surveyed a pre-selected 1-km stretch of street in each of three socio-demographically different neighborhoods to assess inter-rater reliability. Construct validity was assessed by comparing the food environments of the neighborhoods to cross-sectional height and weight data obtained on 575 adolescents in the corresponding regions of the city. 273 food establishments (163 restaurants and 110 stores) were surveyed. Sit-down, take-out, and fast food restaurants accounted for 40%, 21% and 19% of all restaurants surveyed. Tobacco and alcohol shops, convenience stores and supermarkets accounted for 25%, 12% and 11%, respectively, of all stores surveyed. We found a high percentage of agreement between teams (>75%) for all categorical variables with moderate kappa scores (0.4-0.6), and no statistically significant differences between teams for any of the continuous variables. More developed inner city neighborhoods had a higher number of fast food restaurants and convenience stores than surrounding neighborhoods. Adolescents who lived in the more developed inner neighborhoods also had a higher percentage of overweight, indicating well-founded construct validity. Depending on the cutoff used, 19% to 36% of male and 10% to 22% of female 16-year old adolescents were found to be overweight. The prevalence of

  9. Food Melt in Consumer Food Environments in Low-income Urban Neighborhoods.

    Science.gov (United States)

    Trapl, Erika S; Pike, Stephanie N; Borawski, Elaine; Flocke, Susan A; Freedman, Darcy A; Walsh, Colleen C; Schneider, Christine; Yoder, Laura

    2017-11-01

    We systematically evaluated changes in availability, price, and quality of perishable food items from the beginning to the end of the month in lowincome, urban neighborhoods. The sample included grocery stores or supermarkets in Cleveland, Ohio, within neighborhoods with >30% of population receiving food assistance. We collected data for 2 sequential months during the first and fourth weeks of each month. Two coders evaluated stores, collecting measures of availability, price, and quality for 50 items. We examined difference in number and proportion of items available at the beginning of the month (BOM) to items remaining available at the end of the month (EOM), as well as quality and price of those items. Across 48 stores, availability at EOM was lower than BOM; as store size increased, reduction in availability (ie, food melt) was significantly (p Food melt differentially affects individuals in neighborhoods without grocery stores. Findings reveal composition of food environments is dynamic rather than static, influencing food-purchasing choices among lowincome consumers.

  10. The impact of urbanization on the community food environment in China.

    Science.gov (United States)

    Wu, Yang; Xue, Hong; Wang, Huijun; Su, Chang; Du, Shufa; Wang, Youfa

    2017-05-01

    Research on how urbanization has influenced the food environment in China is limited. The study aimed to examine the impact of urbanization on the food environment in China. Longitudinal data collected during 1989-2009 from the China Health and Nutrition Survey were used, which covered 9 provinces in China. Urbanicity index (0-10) was assessed using an urbanicity scale. Final analyses included 216 communities. Random-effect models were used in analyses. Urbanization (higher urbanicity index) increased the odds of having fast food restaurants (OR=2.78, 95% CI: 2.18-3.54) and other indoor restaurants (OR=2.93, 95% CI: 2.28-3.76) within the community, the odds of having supermarkets (OR=2.43, 95% CI: 2.04-2.89) and free markets (OR=2.56, 95% CI: 1.77-3.70) within 30 minutes' bus ride from the community. Food prices for apples (β=0.06, 95% CI: 0.04-0.08) and lean pork (β =0.02, 95% CI: 0.01-0.03) increased with urbanicity, while prices for other food did not. Urbanicity was positively associated with community norms for fast food consumption (RR=1.28, 95% CI: 1.22-1.33), fast food preferences (RR=1.09, 95% CI: 1.06-1.12) and nutrition knowledge (RR=1.02, 95% CI: 1.01-1.03). Urbanization is associated with food environment in China. The findings provide insight for future economic development and public health efforts related to urbanization.

  11. A Picture of the Healthful Food Environment in Two Diverse Urban Cities

    Directory of Open Access Journals (Sweden)

    Rebecca E. Lee

    2010-07-01

    Full Text Available Background: Local food environments influence fresh produce purchase and consumption, and previous research has found disparities in local food environments by income and ethnicity. Other existing studies have begun to quantify the distribution of food sources, but there has been limited attention to important features or types of healthful food that are available or their quality or cost. Two studies assessed the type, quantity, quality and cost of healthful food from two diverse urban cities, Kansas City, Kansas and Missouri and Honolulu, Hawaii, and evaluated differences by neighborhood income and ethnic composition. Method: A total of 343 food stores in urban neighborhoods were assessed using the one-page Understanding Neighborhood Determinants of Obesity (UNDO Food Stores Assessment (FSA measuring healthful foods. US Census data were used to define median household income and ethnic minority concentration. Results: In Study 1, most low socioeconomic status (SES, high ethnic minority neighborhoods had primarily convenience, liquor or small grocery stores. Quality of produce was typically lower, and prices of some foods were more than in comparison neighborhoods. In Study 2, low SES neighborhoods had more convenience and grocery stores. Farmers’ markets and supermarkets had the best produce availability and quality, and farmers’ markets and pharmacies had the lowest prices. Conclusions: Messages emphasizing eating more fruits and vegetables are not realistic in urban, low SES, high ethnic concentration neighborhoods. Farmers’ markets and supermarkets provided the best opportunities for fresh produce. Increasing access to farmers’ markets and supermarkets or reducing prices could improve the local food environment.

  12. A Picture of the Healthful Food Environment in Two Diverse Urban Cities

    Directory of Open Access Journals (Sweden)

    Rebecca E. Lee

    2010-01-01

    Full Text Available Background Local food environments influence fresh produce purchase and consumption, and previous research has found disparities in local food environments by income and ethnicity. Other existing studies have begun to quantify the distribution of food sources, but there has been limited attention to important features or types of healthful food that are available or their quality or cost. Two studies assessed the type, quantity, quality and cost of healthful food from two diverse urban cities, Kansas City, Kansas and Missouri and Honolulu, Hawaii, and evaluated differences by neighborhood income and ethnic composition. Method A total of 343 food stores in urban neighborhoods were assessed using the one-page Understanding Neighborhood Determinants of Obesity (UNDO Food Stores Assessment (FSA measuring healthful foods. US Census data were used to define median household income and ethnic minority concentration. Results In Study 1, most low socioeconomic status (SES, high ethnic minority neighborhoods had primarily convenience, liquor or small grocery stores. Quality of produce was typically lower, and prices of some foods were more than in comparison neighborhoods. In Study 2, low SES neighborhoods had more convenience and grocery stores. Farmers’ markets and supermarkets had the best produce availability and quality, and farmers’ markets and pharmacies had the lowest prices. Conclusions Messages emphasizing eating more fruits and vegetables are not realistic in urban, low SES, high ethnic concentration neighborhoods. Farmers’ markets and supermarkets provided the best opportunities for fresh produce. Increasing access to farmers’ markets and supermarkets or reducing prices could improve the local food environment.

  13. Healthy food access for urban food desert residents: examination of the food environment, food purchasing practices, diet and BMI.

    Science.gov (United States)

    Dubowitz, Tamara; Zenk, Shannon N; Ghosh-Dastidar, Bonnie; Cohen, Deborah A; Beckman, Robin; Hunter, Gerald; Steiner, Elizabeth D; Collins, Rebecca L

    2015-08-01

    To provide a richer understanding of food access and purchasing practices among US urban food desert residents and their association with diet and BMI. Data on food purchasing practices, dietary intake, height and weight from the primary food shopper in randomly selected households (n 1372) were collected. Audits of all neighbourhood food stores (n 24) and the most-frequented stores outside the neighbourhood (n 16) were conducted. Aspects of food access and purchasing practices and relationships among them were examined and tests of their associations with dietary quality and BMI were conducted. Two low-income, predominantly African-American neighbourhoods with limited access to healthy food in Pittsburgh, PA, USA. Household food shoppers. Only one neighbourhood outlet sold fresh produce; nearly all respondents did major food shopping outside the neighbourhood. Although the nearest full-service supermarket was an average of 2·6 km from their home, respondents shopped an average of 6·0 km from home. The average trip was by car, took approximately 2 h for the round trip, and occurred two to four times per month. Respondents spent approximately $US 37 per person per week on food. Those who made longer trips had access to cars, shopped less often and spent less money per person. Those who travelled further when they shopped had higher BMI, but most residents already shopped where healthy foods were available, and physical distance from full-service supermarkets was unrelated to weight or dietary quality. Improved access to healthy foods is the target of current policies meant to improve health. However, distance to the closest supermarket might not be as important as previously thought, and thus policy and interventions that focus merely on improving access may not be effective.

  14. Researching the obesogenic urban food environment, its drivers ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    The result is an obesogenic (causing obesity) environment leading to a prevalence of ... The aim of this project is to draw on methods from nutritional epidemiology, data ... IDRC and key partners will showcase critical work on adaptation and ...

  15. The social dynamics of healthy food shopping and store choice in an urban environment.

    Science.gov (United States)

    Cannuscio, Carolyn C; Hillier, Amy; Karpyn, Allison; Glanz, Karen

    2014-12-01

    To respond to the high prevalence of obesity and its associated health consequences, recent food research and policy have focused on neighborhood food environments, especially the links between health and retail mix, proximity of food outlets, and types of foods available. In addition, the social environment exerts important influences on food-related behaviors, through mechanisms like role-modeling, social support, and social norms. This study examined the social dynamics of residents' health-related food-shopping behaviors in 2010-11 in urban Philadelphia, where we conducted 25 semi-structured resident interviews-the foundation for this paper-in addition to 514 structured interviews and a food environment audit. In interviews, participants demonstrated adaptability and resourcefulness in their food shopping; they chose to shop at stores that met a range of social needs. Those needs ranged from practical financial considerations, to fundamental issues of safety, to mundane concerns about convenience, and juggling multiple work and family responsibilities. The majority of participants were highly motivated to adapt their shopping patterns to accommodate personal financial constraints. In addition, they selectively shopped at stores frequented by people who shared their race/ethnicity, income and education, and they sought stores where they had positive interactions with personnel and proprietors. In deciding where to shop in this urban context, participants adapted their routines to avoid unsafe places and the threat of violence. Participants also discussed the importance of convenient stores that allowed for easy parking, accommodation of physical disabilities or special needs, and integration of food shopping into other daily activities like meeting children at school. Food research and policies should explicitly attend to the social dynamics that influence food-shopping behavior. In our social relationships, interactions, and responsibilities, there are

  16. Connecting cities and their environments: Harnessing the water-energy-food nexus for sustainable urban development

    Directory of Open Access Journals (Sweden)

    Chan Arthur

    2015-01-01

    Full Text Available Thousands of years of development have made the production and consumption of water, energy, and food for urban environments more complex. While the rise of cities has fostered social and economic progress, the accompanying environmental pressures threaten to undermine these benefits. The compounding effects of climate change, habitat loss, pollution, overexploitation (in addition to financial constraints make the individual management of these three vital resources incompatible with rapidly growing populations and resource-intensive lifestyles. Nexus thinking is a critical tool to capture opportunities for urban sustainability in both industrialised and developing cities. A nexus approach to water, energy, and food security recognises that conventional decisionmaking, strictly confined within distinct sectors, limits the sustainability of urban development. Important nexus considerations include the need to collaborate with a wide spectrum of stakeholders, and to “re-integrate” urban systems. This means recognising the opportunities coming from the interconnected nature of cities and metropolitan regions, including links with rural environments and wider biophysical dynamics.

  17. ‘Obesogenic’ School Food Environments? An Urban Case Study in The Netherlands

    Directory of Open Access Journals (Sweden)

    Joris Timmermans

    2018-03-01

    Full Text Available (1 Background: This study aimed to explore and define socio-economic (SES differences in urban school food environments in The Netherlands. (2 Methods: Retail food outlets, ready-to-eat products, in-store food promotions and food advertisements in public space were determined within 400 m walking distance of all secondary schools in the 4th largest city of The Netherlands. Fisher’s exact tests were conducted. (3 Results: In total, 115 retail outlets sold ready-to-eat food and drink products during school hours. Fast food outlets were more often in the vicinity of schools in lower SES (28.6% than in higher SES areas (11.5%. In general, unhealthy options (e.g., fried snacks, sugar-sweetened beverages (SSB were more often for sale, in-store promoted or advertised in comparison with healthy options (e.g., fruit, vegetables, bottled water. Sport/energy drinks were more often for sale, and fried snacks/fries, hamburgers/kebab and SSB were more often promoted or advertised in lower SES areas than in higher SES-areas. (4 Conclusion: In general, unhealthy food options were more often presented than the healthy options, but only a few SES differences were observed. The results, however, imply that efforts in all school areas are needed to make the healthy option the default option during school time.

  18. ‘Obesogenic’ School Food Environments? An Urban Case Study in The Netherlands

    Science.gov (United States)

    Timmermans, Joris; Dijkstra, Coosje; Kamphuis, Carlijn; van der Zee, Egbert; Poelman, Maartje

    2018-01-01

    (1) Background: This study aimed to explore and define socio-economic (SES) differences in urban school food environments in The Netherlands. (2) Methods: Retail food outlets, ready-to-eat products, in-store food promotions and food advertisements in public space were determined within 400 m walking distance of all secondary schools in the 4th largest city of The Netherlands. Fisher’s exact tests were conducted. (3) Results: In total, 115 retail outlets sold ready-to-eat food and drink products during school hours. Fast food outlets were more often in the vicinity of schools in lower SES (28.6%) than in higher SES areas (11.5%). In general, unhealthy options (e.g., fried snacks, sugar-sweetened beverages (SSB)) were more often for sale, in-store promoted or advertised in comparison with healthy options (e.g., fruit, vegetables, bottled water). Sport/energy drinks were more often for sale, and fried snacks/fries, hamburgers/kebab and SSB were more often promoted or advertised in lower SES areas than in higher SES-areas. (4) Conclusion: In general, unhealthy food options were more often presented than the healthy options, but only a few SES differences were observed. The results, however, imply that efforts in all school areas are needed to make the healthy option the default option during school time. PMID:29597308

  19. 'Obesogenic' School Food Environments? An Urban Case Study in The Netherlands.

    Science.gov (United States)

    Timmermans, Joris; Dijkstra, Coosje; Kamphuis, Carlijn; Huitink, Marlijn; van der Zee, Egbert; Poelman, Maartje

    2018-03-28

    (1) Background: This study aimed to explore and define socio-economic (SES) differences in urban school food environments in The Netherlands. (2) Methods: Retail food outlets, ready-to-eat products, in-store food promotions and food advertisements in public space were determined within 400 m walking distance of all secondary schools in the 4th largest city of The Netherlands. Fisher's exact tests were conducted. (3) Results: In total, 115 retail outlets sold ready-to-eat food and drink products during school hours. Fast food outlets were more often in the vicinity of schools in lower SES (28.6%) than in higher SES areas (11.5%). In general, unhealthy options (e.g., fried snacks, sugar-sweetened beverages (SSB)) were more often for sale, in-store promoted or advertised in comparison with healthy options (e.g., fruit, vegetables, bottled water). Sport/energy drinks were more often for sale, and fried snacks/fries, hamburgers/kebab and SSB were more often promoted or advertised in lower SES areas than in higher SES-areas. (4) Conclusion: In general, unhealthy food options were more often presented than the healthy options, but only a few SES differences were observed. The results, however, imply that efforts in all school areas are needed to make the healthy option the default option during school time.

  20. [An approach to food consumption in an urban environment. The case of west Africa].

    Science.gov (United States)

    Ag Bendech, M; Gerbouin-Rerolle, P; Chauliac, M; Malvy, D

    1996-01-01

    West Africa has undergone rapid economic and political changes during the last 20 years. After the failure of economic policies implemented since independence, programs for structural adjustment have strongly influenced the economy. Food problems affect each country differently. The Sahel has experienced food shortages and starvation whereas in forested countries the food supply has remained stable. Nevertheless, food policies have not succeeded in contributing to urban and rural development. The rate of urbanization in west Africa is generally low but the rate of urban population growth is particularly high, much more than the growth rates of industry and infrastructure. Although metropolitan areas are affected by poverty, they offer more hope and opportunities than rural areas. Urban markets have expanded and diversified as social differences have also increased and contributed to changes in consumption structure. Urban growth has contributed to the increase of imported food: this is indicated by both the strong dependency and the change of food habits towards western food patterns. Recently however, west African urban dwellers are still preferring local items if they are affordable. When imported products are used, they are integrated within a stable meal plan consisting of a single dish with a base and a sauce, which is typical of African food preparation. Surveys of consumption-budgets are still only available on a national scale. These can provide accurate information about food consumption patterns of families, particularly for significant trends. However, they do not provide information about the dynamics of food consumption, neither for urban areas or the individual. Now a significant proportion of individual food consumption occurs outside of the home, mainly with food provided by street vendors. This new consumption habit is a response to the urban food crisis. Consumption of street-vendor-food comprises one component but this cannot be dissociated from

  1. Examining community and consumer food environments for children: An urban-suburban-rural comparison in Southwestern Ontario.

    Science.gov (United States)

    DuBreck, Catherine M; Sadler, Richard C; Arku, Godwin; Gilliland, Jason A

    2018-05-08

    The aim of this study is to evaluate how retail food environments for children in the City of London and Middlesex County, Ontario, Canada, vary according to level of urbanicity and level of socioeconomic distress. Urbanicity in this study is defined as a neighbourhood's designation as urban, suburban, or rural. We assessed community food environments (e.g., the type, location, and accessibility of food outlets) using 800m and 1600m network buffers (school zones) around all public and private elementary schools, and we calculated and compared density of junk food opportunities (JFO) (e.g., fast food and full-service restaurants, grocery stores, and convenience stores) within each school zone in urban, suburban and rural settings. The study also assessed consumer food environments (e.g., the price, promotion, placement, and availability of healthy options and nutrition information) through restaurant children's menu audits using the Children's Menu Assessment tool. Results suggest JFO density is greater around elementary schools in areas with higher levels of socioeconomic distress and urbanicity, while urbanicity is also associated with greater use of branded marketing and inclusion of an unhealthy dessert on children's menus. Copyright © 2018 Elsevier Ltd. All rights reserved.

  2. Neighborhood food retail environment and health outcomes among urban Ghanaian women

    Science.gov (United States)

    Taflin, Helena Janet

    Over the past several decades there has been a global dietary shift, occurring at different rates across time and space. These changes are reflective of the nutrition transition--a series of potentially adverse changes in diet, health and physical activity. These dietary shifts have been associated with significant health consequences, as seen by the global rise in nutrition-related non-communicable diseases (NR-NCDs) such as diabetes, hypertension, cancer, coronary heart disease as well as obesity. Clinical studies have confirmed that overweight and obese individuals are at increased risk for diabetes and hypertension, among other cardiovascular diseases. However, these linkages between the nutrition transition and health are not spatially random. They vary according to personal characteristics ("who you are") and the neighborhood environment in which you live ("where you are"). Leveraging existing demographic and health resources, in this project I aim to investigate the relationship between the food retail environment and health outcomes among a representative sample of urban Ghanaian women ages 18 and older, normally resident in the Accra Metropolitan Area (AMA), using a mixed methods spatial approach. Data for this study are drawn primarily from the 2008-09 Women's Health Study of Accra (WHSA II) which was funded by the U.S. National Institute of Child Health and Human Development (NICHD) (John R. Weeks, Project Director/Principal Investigator). It was conducted as a joint collaboration between the Institute of Statistical, Social and Economic Research (ISSER) at the University of Ghana, the Harvard School of Public Health and San Diego State University. Results from this study highlights the importance of addressing the high prevalence of hypertension among adult women in Accra and should be of concern to both stakeholders and the public. Older populations, overweight and obese individuals, those with partners living at home, limited number of food retailers

  3. Rural and Urban Differences in the Associations between Characteristics of the Community Food Environment and Fruit and Vegetable Intake

    Science.gov (United States)

    Dean, Wesley R.; Sharkey, Joseph R.

    2011-01-01

    Objective: To examine the relationship between measures of the household and retail food environments and fruit and vegetable (FV) intake in both urban and rural environmental contexts. Design: A cross-sectional design was used. Data for FV intake and other characteristics were collected via survey instrument and geocoded to the objective food…

  4. A border versus non-border comparison of food environment, poverty, and ethnic composition in Texas urban settings.

    Science.gov (United States)

    Salinas, Jennifer J; Sexton, Ken

    2015-01-01

    The goal was to examine the relationship between the food environment and selected socioeconomic variables and ethnic/racial makeup in the eight largest urban settings in Texas so as to gain a better understanding of the relationships among Hispanic composition, poverty, and urban foodscapes, comparing border to non-border urban environments. Census-tract level data on (a) socioeconomic factors, like percentage below the poverty line and number of households on foodstamps, and (b) ethnic variables, like percent of Mexican origin and percent foreign born, were obtained from the U.S. Census. Data at the census-tract level on the total number of healthy (e.g., supermarkets) and less-healthy (e.g., fast food outlets) food retailers were acquired from the CDC's modified retail food environment index (mRFEI). Variation among urban settings in terms of the relationship between mRFEI scores and socioeconomic and ethnic context was tested using a mixed-effect model, and linear regression was used to identify significant factors for each urban location. A jackknife variance estimate was used to account for clustering and autocorrelation of adjacent census tracts. Average census-tract mRFEI scores exhibited comparatively small variation across Texas urban settings, while socioeconomic and ethnic factors varied significantly. The only covariates significantly associated with mRFEI score were percent foreign born and percent Mexican origin. Compared to the highest-population county (Harris, which incorporates most of Houston), the only counties that had significantly different mRFEI scores were Bexar, which is analogous to San Antonio (2.12 lower), El Paso (2.79 higher), and Neuces, which encompasses Corpus Christi (2.90 less). Significant interaction effects between mRFEI and percent foreign born (El Paso, Tarrant - Fort Worth, Travis - Austin), percent Mexican origin (Hidalgo - McAllen, El Paso, Tarrant, Travis), and percent living below the poverty line (El Paso) were

  5. What role do local grocery stores play in urban food environments? A case study of Hartford-Connecticut.

    Directory of Open Access Journals (Sweden)

    Katie S Martin

    Full Text Available INTRODUCTION: Research on urban food environments emphasizes limited access to healthy food, with fewer large supermarkets and higher food prices. Many residents of Hartford, Connecticut, which is often considered a food desert, buy most of their food from small and medium-sized grocery stores. We examined the food environment in greater Hartford, comparing stores in Hartford to those in the surrounding suburbs, and by store size (small, medium, and large. METHODS: We surveyed all small (over 1,000 ft2, medium, and large-sized supermarkets within a 2-mile radius of Hartford (36 total stores. We measured the distance to stores, availability, price and quality of a market basket of 25 items, and rated each store on internal and external appearance. Geographic Information System (GIS was used for mapping distance to the stores and variation of food availability, quality, and appearance. RESULTS: Contrary to common literature, no significant differences were found in food availability and price between Hartford and suburban stores. However, produce quality, internal, and external store appearance were significantly lower in Hartford compared to suburban stores (all p<0.05. Medium-sized stores had significantly lower prices than small or large supermarkets (p<0.05. Large stores had better scores for internal (p<0.05, external, and produce quality (p<0.01. Most Hartford residents live within 0.5 to 1 mile distance to a grocery store. DISCUSSION: Classifying urban areas with few large supermarkets as 'food deserts' may overlook the availability of healthy foods and low prices that exist within small and medium-sized groceries common in inner cities. Improving produce quality and store appearance can potentially impact the food purchasing decisions of low-income residents in Hartford.

  6. Healthy food access for urban food desert residents: examination of the food environment, food purchasing practices, diet, and body mass index

    Science.gov (United States)

    Dubowitz, Tamara; Zenk, Shannon N.; Ghosh-Dastidar, Bonnie; Cohen, Deborah; Beckman, Robin; Hunter, Gerald; Steiner, Elizabeth D.; Collins, Rebecca L.

    2015-01-01

    Objective Provide a richer understanding of food access and purchasing practices among U.S. urban food desert residents and their association with diet and body mass. Design Data on food purchasing practices, dietary intake, height, and weight from the primary food shopper in randomly selected households (n=1372) was collected. Audits of all neighborhood food stores (n=24) and the most-frequented stores outside the neighborhood (n=16) were conducted. Aspects of food access and purchasing practices and relationships among them were examined and tests of their associations with dietary quality and body mass index (BMI) were conducted. Setting Two low-income predominantly African-American neighborhoods with limited access to healthy food in Pittsburgh, Pennsylvania. Subjects Household food shoppers. Results Only one neighborhood outlet sold fresh produce; nearly all respondents did major food shopping outside the neighborhood. Although the nearest full-service supermarket was an average of 2.6 km from their home, respondents shopped an average of 6.0 km from home. The average trip was by car, took approximately two hours roundtrip, and occurred two to four times per month. Respondents spent approximately $37 per person per week on food. Those who made longer trips had access to cars, shopped less often, and spent less money per person. Those who traveled further when they shopped had higher BMIs, but most residents already shopped where healthy foods were available, and physical distance from full service groceries was unrelated to weight or dietary quality. Conclusions Improved access to healthy foods is the target of current policies meant to improve health. However, distance to the closest supermarket might not be as important as previously thought and thus policy and interventions that focus merely on improving access may not be effective. PMID:25475559

  7. Unhealthy Fat in Street and Snack Foods in Low-Socioeconomic Settings in India: A Case Study of the Food Environments of Rural Villages and an Urban Slum.

    Science.gov (United States)

    Gupta, Vidhu; Downs, Shauna M; Ghosh-Jerath, Suparna; Lock, Karen; Singh, Archna

    2016-04-01

    To describe the food environment in rural villages and an urban slum setting in India with reference to commercially available unbranded packaged snacks and street foods sold by vendors, and to analyze the type and quantity of fat in these foods. Cross-sectional. Two low-income villages in Haryana and an urban slum in Delhi. Street vendors (n = 44) were surveyed and the nutritional content of snacks (n = 49) sold by vendors was analyzed. Vendors' awareness and perception of fats and oils, as well as the type of snacks sold, along with the content and quality of fat present in the snacks. Descriptive statistics of vendor survey and gas chromatography to measure fatty acid content in snacks. A variety of snacks were sold, including those in unlabeled transparent packages and open glass jars. Mean fat content in snacks was 28.8 g per 100-g serving in rural settings and 29.6 g per 100-g serving in urban settings. Sampled oils contained high levels of saturated fats (25% to 69% total fatty acids) and trans fats (0.1% to 30% of total fatty acids). Interventions need to target the manufacturers of oils and fats used in freshly prepared products to improve the quality of foods available in the food environment of low-socioeconomic groups in India. Copyright © 2016 The Authors. Published by Elsevier Inc. All rights reserved.

  8. Performative Urban Environments

    DEFF Research Database (Denmark)

    Jensen, Ole B.; Thomsen, Bo Stjerne

    2008-01-01

    The chapter explores how temporary architectural structures can become media for bottom-up approaches to urban development. Urban interactions in the city developed from the sidewalks were seen as locally bounded neighbourhoods. However, with the advent of contemporary network technologies....... In investigating architectural media-constructions the paper draws on the notion of ‘Capsular Civilization'. Arguing that architectural capsules in the cities' in-between spaces may become the media and places of meaningful interaction by establishing a feedback loop guided by social interaction. Architecture thus......-organizing, communicative environments for an organized complexity between flows of local interactions and network behaviour. The chapter applies the concepts on the case of the Pavilion Project, NoRA, built for the 10th International Architecture Biennale in Venice for the network of Food College Denmark....

  9. Comparing the accuracy of food outlet datasets in an urban environment

    Directory of Open Access Journals (Sweden)

    Michelle S. Wong

    2017-05-01

    Full Text Available Studies that investigate the relationship between the retail food environment and health outcomes often use geospatial datasets. Prior studies have identified challenges of using the most common data sources. Retail food environment datasets created through academic-government partnership present an alternative, but their validity (retail existence, type, location has not been assessed yet. In our study, we used ground-truth data to compare the validity of two datasets, a 2015 commercial dataset (InfoUSA and data collected from 2012 to 2014 through the Maryland Food Systems Mapping Project (MFSMP, an academic-government partnership, on the retail food environment in two low-income, inner city neighbourhoods in Baltimore City. We compared sensitivity and positive predictive value (PPV of the commercial and academic-government partnership data to ground-truth data for two broad categories of unhealthy food retailers: small food retailers and quick-service restaurants. Ground-truth data was collected in 2015 and analysed in 2016. Compared to the ground-truth data, MFSMP and InfoUSA generally had similar sensitivity that was greater than 85%. MFSMP had higher PPV compared to InfoUSA for both small food retailers (MFSMP: 56.3% vs InfoUSA: 40.7% and quick-service restaurants (MFSMP: 58.6% vs InfoUSA: 36.4%. We conclude that data from academic-government partnerships like MFSMP might be an attractive alternative option and improvement to relying only on commercial data. Other research institutes or cities might consider efforts to create and maintain such an environmental dataset. Even if these datasets cannot be updated on an annual basis, they are likely more accurate than commercial data.

  10. Comparing the accuracy of food outlet datasets in an urban environment.

    Science.gov (United States)

    Wong, Michelle S; Peyton, Jennifer M; Shields, Timothy M; Curriero, Frank C; Gudzune, Kimberly A

    2017-05-11

    Studies that investigate the relationship between the retail food environment and health outcomes often use geospatial datasets. Prior studies have identified challenges of using the most common data sources. Retail food environment datasets created through academic-government partnership present an alternative, but their validity (retail existence, type, location) has not been assessed yet. In our study, we used ground-truth data to compare the validity of two datasets, a 2015 commercial dataset (InfoUSA) and data collected from 2012 to 2014 through the Maryland Food Systems Mapping Project (MFSMP), an academic-government partnership, on the retail food environment in two low-income, inner city neighbourhoods in Baltimore City. We compared sensitivity and positive predictive value (PPV) of the commercial and academic-government partnership data to ground-truth data for two broad categories of unhealthy food retailers: small food retailers and quick-service restaurants. Ground-truth data was collected in 2015 and analysed in 2016. Compared to the ground-truth data, MFSMP and InfoUSA generally had similar sensitivity that was greater than 85%. MFSMP had higher PPV compared to InfoUSA for both small food retailers (MFSMP: 56.3% vs InfoUSA: 40.7%) and quick-service restaurants (MFSMP: 58.6% vs InfoUSA: 36.4%). We conclude that data from academic-government partnerships like MFSMP might be an attractive alternative option and improvement to relying only on commercial data. Other research institutes or cities might consider efforts to create and maintain such an environmental dataset. Even if these datasets cannot be updated on an annual basis, they are likely more accurate than commercial data.

  11. Changes in food and beverage environments after an urban corner store intervention.

    Science.gov (United States)

    Cavanaugh, Erica; Green, Sarah; Mallya, Giridhar; Tierney, Ann; Brensinger, Colleen; Glanz, Karen

    2014-08-01

    In response to the obesity epidemic, interventions to improve the food environment in corner stores have gained attention. This study evaluated the availability, quality, and price of foods in Philadelphia corner stores before and after a healthy corner store intervention with two levels of intervention intensity ("basic" and "conversion"). Observational measures of the food environment were completed in 2011 and again in 2012 in corner stores participating in the intervention, using the Nutrition Environment Measures Survey for Corner Stores (NEMS-CS). Main analyses included the 211 stores evaluated at both time-points. A time-by-treatment interaction analysis was used to evaluate the changes in NEMS-CS scores by intervention level over time. Availability of fresh fruit increased significantly in conversion stores over time. Specifically, there were significant increases in the availability of apples, oranges, grapes, and broccoli in conversion stores over time. Conversion stores showed a trend toward a significantly larger increase in the availability score compared to basic stores over time. Interventions aimed at increasing healthy food availability are associated with improvements in the availability of low-fat milk, fruits, and some vegetables, especially when infrastructure changes, such as refrigeration and shelving enhancements, are offered. Copyright © 2014 Elsevier Inc. All rights reserved.

  12. The Food Environment Through the Camera Lenses of 9- to 13-Year-Olds Living in Urban, Low-Income, Midwestern Households: A Photovoice Project.

    Science.gov (United States)

    Heidelberger, Lindsay; Smith, Chery

    2015-01-01

    To pilot Photovoice methodology with low-income, urban 9- to 13-year-olds to gain insight about their food environment and to determine whether this methodology was engaging and acceptable to them. Photovoice methodology was used to allow children to represent their food environment. Twenty male and 9 female, low-income, 9- to 13-year-old children participated. Quantitative photograph analysis included quantity taken and usable internal/external and social environment and healthfulness categorizations. Qualitative analysis was conducted through open coding of interview transcripts. A total of 345 usable photos were taken by the children (n = 29), depicting both healthy and unhealthy foods. Four themes were identified (1) food characteristics; (2) social environment; (3) kitchen, cooking, and dining environments; and (4) food insecurity. Unhealthy food was most readily available to children. Children reported a lack of functioning kitchen equipment and multiple physical and environmental challenges to consuming a healthy diet. Food insecurity was prevalent. Food stamps and food pantries were used to fill gaps in the home food supply. Photovoice can be effective in engaging children in conversation about their food environment and increases understanding of their experiences with food. Photovoice can provide insight into the household food environments. This information can be used to tailor interventions to better reflect the living environment and eating behaviors in low-income populations. Copyright © 2015 Society for Nutrition Education and Behavior. Published by Elsevier Inc. All rights reserved.

  13. Degree of food processing of household acquisition patterns in a Brazilian urban area is related to food buying preferences and perceived food environment.

    Science.gov (United States)

    Vedovato, G M; Trude, A C B; Kharmats, A Y; Martins, P A

    2015-04-01

    This cross-sectional study examined the association between local food environment and consumers' acquisition of ultra-processed food. Households were randomly selected from 36 census tracts in Santos City, Brazil. Mothers, of varying economic status, who had children ages 10 or younger (n = 538) were interviewed concerning: their household food acquisition of 31 groups of food and beverages, perceptions of local food environment, food sources destinations, means of transportation used, and socioeconomic status. Food acquisition patterns were classified based on the degree of industrial food processing. Logistic regression models were fitted to assess the association between consumer behaviors and acquisition patterns. The large variety of fresh produce available in supermarkets was significantly related to lower odds of ultra-processed food purchases. After adjusting for sociodemographic characteristics, higher odds for minimally-processed food acquisition were associated with: frequent use of specialized markets to purchase fruits and vegetables (OR 1.89, 95% CI 1.01-2.34), the habit of walking to buy food (OR 1.58, 95% CI 1.08-2.30), and perceived availability of fresh produce in participants' neighborhood (OR 1.58, 95% CI 1.08-2.30). Acquisition of ultra-processed food was positively associated with the use of taxis as principal means of transportation to food sources (OR 2.35, 95% CI 1.08-5.13), and negatively associated with perceived availability of a variety of fruits and vegetables in the neighborhood (OR 0.57, 95% CI 0.37-0.88). The results suggest that interventions aiming to promote acquisition of less processed food in settings similar to Santos, may be most effective if they focus on increasing the number of specialized fresh food markets in local neighborhood areas, improve residents' awareness of these markets' availability, and provide appropriate transportation. Copyright © 2014 Elsevier Ltd. All rights reserved.

  14. Is food-related lifestyle (FRL) able to reveal food consumption patterns in non-western cultural environments? Its adaptation and application in urban China

    DEFF Research Database (Denmark)

    Grunert, Klaus G.; Perrea, Toula; Zhou, Yanfeng

    Research related to food-related behaviour in China is still scarce, one reason being the fact that food consumption patterns in East Asia do not appear to be easily analyzed by models originating in Western cultures. The objective of the present work is to examine the ability of the Food Related...... for the conceptual meaningfulness and applicability of FRL in non-Western food culture environments, when appropriately adapted....

  15. Food Shopping Venues, Neighborhood Food Environment, and Body Mass Index Among Guyanese, Black, and White Adults in an Urban Community in the US.

    Science.gov (United States)

    Hosler, Akiko S; Michaels, Isaac H; Buckenmeyer, Erin M

    2016-06-01

    To investigate relationships among food shopping venues, food environment, and body mass index (BMI). Cross-sectional survey data and directly assessed food environment data were linked at the neighborhood level. Schenectady, NY. A sample of Guyanese, black, and white adults (n = 226, 485, and 908, respectively). BMI. Linear regression models were constructed with 10 food shopping venues and neighborhood food environment as explanatory variables, controlling for sociodemographics, dietary behavior, physical activity, and perception of healthy food access. On average, respondents used 3.5 different food shopping venues. Supermarkets and ethnic markets were associated with a lower BMI in Guyanese adults. Among black adults, farmers' markets were associated with a lower BMI, whereas supermarkets, wholesale clubs, and food pantries were associated with a higher BMI. Among white adults, food coops and supermarkets were associated with a lower BMI and wholesale clubs were associated with a higher BMI. Neighborhoods with less a favorable food environment (longer travel distance to a supermarket) were associated with a lower BMI in Guyanese adults. Both primary (ie, supermarkets) and secondary food shopping venues could be independent determinants of BMI. The observed variations by race and ethnicity provided insights into a culturally tailored approach to address obesity. Copyright © 2016 Society for Nutrition Education and Behavior. Published by Elsevier Inc. All rights reserved.

  16. Charting Availability of Processed and Unprocessed Foods in School Neighbourhood Nutrition Environments in an Urban Australian Setting

    Science.gov (United States)

    Oaken, Holly; Vaughan, Lisa; Fa'avale, Nicola

    2017-01-01

    School Neighbourhood Nutrition Environments (SNNEs) can facilitate or impede healthy eating. This study describes the SNNEs surrounding 6 Good Start Program (GSP) schools in 5 suburbs in Logan, Queensland. Relative density of healthy and unhealthy food outlets was calculated for SNNEs surrounding GSP (6) and non-GSP (10) schools within the 5 suburbs. Relative accessibility of minimally processed and highly processed food and drink in SNNEs of the 6 GSP schools was determined using shelf measurements of snack foods. Unhealthy outlets greatly outnumber healthy outlets (mean relative density 15.6%, median 19.1%). The majority of outlets stock predominantly highly processed food and drink. Study areas are dominated by unhealthy food outlets and highly processed food. PMID:28553361

  17. Charting Availability of Processed and Unprocessed Foods in School Neighbourhood Nutrition Environments in an Urban Australian Setting

    Directory of Open Access Journals (Sweden)

    Holly Oaken

    2017-01-01

    Full Text Available School Neighbourhood Nutrition Environments (SNNEs can facilitate or impede healthy eating. This study describes the SNNEs surrounding 6 Good Start Program (GSP schools in 5 suburbs in Logan, Queensland. Relative density of healthy and unhealthy food outlets was calculated for SNNEs surrounding GSP (6 and non-GSP (10 schools within the 5 suburbs. Relative accessibility of minimally processed and highly processed food and drink in SNNEs of the 6 GSP schools was determined using shelf measurements of snack foods. Unhealthy outlets greatly outnumber healthy outlets (mean relative density 15.6%, median 19.1%. The majority of outlets stock predominantly highly processed food and drink. Study areas are dominated by unhealthy food outlets and highly processed food.

  18. Charting Availability of Processed and Unprocessed Foods in School Neighbourhood Nutrition Environments in an Urban Australian Setting.

    Science.gov (United States)

    Oaken, Holly; Vaughan, Lisa; Fa'avale, Nicola; Ware, Robert S; Schubert, Lisa

    2017-01-01

    School Neighbourhood Nutrition Environments (SNNEs) can facilitate or impede healthy eating. This study describes the SNNEs surrounding 6 Good Start Program (GSP) schools in 5 suburbs in Logan, Queensland. Relative density of healthy and unhealthy food outlets was calculated for SNNEs surrounding GSP (6) and non-GSP (10) schools within the 5 suburbs. Relative accessibility of minimally processed and highly processed food and drink in SNNEs of the 6 GSP schools was determined using shelf measurements of snack foods. Unhealthy outlets greatly outnumber healthy outlets (mean relative density 15.6%, median 19.1%). The majority of outlets stock predominantly highly processed food and drink. Study areas are dominated by unhealthy food outlets and highly processed food.

  19. Food shopping transition: socio-economic characteristics and motivations associated with use of supermarkets in a North African urban environment.

    Science.gov (United States)

    Tessier, Sophie; Traissac, Pierre; Bricas, Nicolas; Maire, Bernard; Eymard-Duvernay, Sabrina; El Ati, Jalila; Delpeuch, Francis

    2010-09-01

    In the context of the nutrition transition and associated changes in the food retail sector, to examine the socio-economic characteristics and motivations of shoppers using different retail formats (large supermarkets (LSM), medium-sized supermarkets (MSM) or traditional outlets) in Tunisia. Cross-sectional survey (2006). Socio-economic status, type of food retailer and motivations data were collected during house visits. Associations between socio-economic factors and type of retailer were assessed by multinomial regression; correspondence analysis was used to analyse declared motivations. Peri-urban area around Tunis, Tunisia, North Africa. Clustered random sample of 724 households. One-third of the households used LSM, two-thirds used either type of supermarket, but less than 5 % used supermarkets only. Those who shopped for food at supermarkets were of higher socio-economic status; those who used LSM were much wealthier, more often had a steady income or owned a credit card, while MSM users were more urban and had a higher level of education. Most households still frequently used traditional outlets, mostly their neighbourhood grocer. Reasons given for shopping at the different retailers were most markedly leisure for LSM, while for the neighbourhood grocer the reasons were fidelity, proximity and availability of credit (the latter even more for lower-income customers). The results pertain to the transition in food shopping practices in a south Mediterranean country; they should be considered in the context of growing inequalities in health linked to the nutritional transition, as they differentiate use and motivations for the choice of supermarkets v. traditional food retailers according to socio-economic status.

  20. Optimal foraging in seasonal environments: implications for residency of Australian flying foxes in food-subsidized urban landscapes.

    Science.gov (United States)

    Páez, David J; Restif, Olivier; Eby, Peggy; Plowright, Raina K

    2018-05-05

    Bats provide important ecosystem services such as pollination of native forests; they are also a source of zoonotic pathogens for humans and domestic animals. Human-induced changes to native habitats may have created more opportunities for bats to reside in urban settings, thus decreasing pollination services to native forests and increasing opportunities for zoonotic transmission. In Australia, fruit bats ( Pteropus spp. flying foxes) are increasingly inhabiting urban areas where they feed on anthropogenic food sources with nutritional characteristics and phenology that differ from native habitats. We use optimal foraging theory to investigate the relationship between bat residence time in a patch, the time it takes to search for a new patch (simulating loss of native habitat) and seasonal resource production. We show that it can be beneficial to reside in a patch, even when food productivity is low, as long as foraging intensity is low and the expected searching time is high. A small increase in the expected patch searching time greatly increases the residence time, suggesting nonlinear associations between patch residence and loss of seasonal native resources. We also found that sudden increases in resource consumption due to an influx of new bats has complex effects on patch departure times that again depend on expected searching times and seasonality. Our results suggest that the increased use of urban landscapes by bats may be a response to new spatial and temporal configurations of foraging opportunities. Given that bats are reservoir hosts of zoonotic diseases, our results provide a framework to study the effects of foraging ecology on disease dynamics.One contribution of 14 to a theme isssue 'Anthropogenic resource subsidies and host-parasite dynamics in wildlife'. © 2018 The Author(s).

  1. Food environment and obesity.

    Science.gov (United States)

    Mattes, Richard; Foster, Gary D

    2014-12-01

    The food environment plays an important and often dominant role in food choice, eating patterns, and ultimately, energy intake. The Obesity Society and the American Society for Nutrition jointly sponsored a series of reviews on topics of interest to both memberships. The goal was to consider the state of understanding on selected issues related to the food environment and obesity and to identify key knowledge gaps. The first article (not necessarily of importance) targeted energy density (ED) and focuses on the role of ED in the regulation of energy intake and body weight. It offers recommendations for prioritizing research. The second article addresses economic factors and examines food and beverage purchases as a function of price changes. It concludes that targeted food taxes and subsidies alone are unlikely to substantially affect obesity. The third article concerns sweetened beverages and points out the difficulty in establishing the strength of the association between intake of sugar-sweetened beverages and weight gain and obesity. In the fourth article, the contributions of palatability and variety to eating behavior and weight are reviewed. Article five explores the influence of portion size on energy intake and weight management. It finds that consumers generally tend to eat proportionally more as portion size increases. The sixth article focuses on the efficacy and effectiveness of eating frequency manipulations for body weight management and finds that such manipulations have consistently yielded null results. Finally, article seven identifies several limitations of the existing literature regarding neighborhood access to healthy foods. This series of reviews addresses important questions regarding the contribution of the food environment to obesity. Independent of physiological/genetic determinants, factors such as ED, cost, food form, palatability, variety, portion size, eating frequency, and access to healthy food are each evaluated for their role in

  2. The urban environment

    International Nuclear Information System (INIS)

    Roed, J.

    1997-01-01

    Since the majority of the population of Nordic countries, and indeed most of Western Europe, reside in towns and cities, decontamination and reclamation of urban areas must figure prominently in nuclear accident contingency planning. If clean-up is to be both efficient and cost-effective a number of factors must be taken into account. They are: distribution of the deposited radionuclide(s) on the various urban surfaces (roofs, soil, walls, roads etc.); radiation levels on the various surfaces; attenuation of radiation through shielding by urban structures (e.g. walls); habits of the populace with respect to time spent indoors and outdoors and time spent on various floors within buildings typical of particular urban complexes; decontamination by natural processes, described as weathering (which includes rain, traffic, routine cleaning); diminution in radiation levels through radioactive decay; decontamination achievable by artificial means. Of all the radioactive materials which might be released in the event of a severe accident, 134 Cs and 137 Cs would present the greatest radiation hazard to the populace of a contaminated urban complex in both the medium and long-term. (EG)

  3. On improving Urban Environment Representations

    Directory of Open Access Journals (Sweden)

    Xavier ePueyo

    2014-12-01

    Full Text Available Computer Graphics has evolved into a mature and powerful field that offers many opportunities to enhance different disciplines, adapting to the specific needs of each. One of these important fields is the design and analysis of Urban Environments. In this article we try to offer a perspective of one of the sectors identified in Urban Environment studies: Urbanization. More precisely we focus on geometric and appearance modeling, rendering and simulation tools to help stakeholders in key decision stages of the process.

  4. Improving the urban environment.

    Science.gov (United States)

    Rotibi, A

    1992-11-01

    An effective environmental sanitation program should encompass key features considered necessary for a primary health care (PHC) program such as availability, accessibility, affordability, acceptability, and practicability. Poor housing conditions give rise to stress, delinquency, and crime, as well as to helminthic and other parasitic infestations. In Africa, urbanization has accelerated since the 1950s because of rural-urban migration. In Nigeria new housing construction has been poor, with inadequate provision of physical facilities and community services in residential areas. Overcrowding is rampant, with occupancy rates of 2-3 persons per room recorded for many cities including Owerri, Abba, Warri and Ontisha. In a survey of rooming-house facilities in Lagos, the average was 5-7 persons per room. 47% of households were living in just one rooms in Sokoto and 80% in the Lagos metropolitan area. An urban household survey by the Federal Office of Statistics found that 45% of households were without electricity. Similarly, 46% of households were found to be without running water, 29% obtained their water from wells, and 14% from streams. The inadequate provision of toilets poses major health risks. Many Nigerian cities lack efficient waste disposal systems: in Ibadan mounds of uncollected rubbish obstruct the roads. According to a Statistics Office survey 48% of refuse is estimated to be dumped illegally, while 23% is simply heaped in family compounds. A recently launched campaign on environmental sanitation is the start of improving the health of urban dwellers which could cut expenditure on curative health measures.

  5. Fluid Mechanics of Urban Environments

    Science.gov (United States)

    Fernando, Harindra J.

    2008-11-01

    The rapid urbanization of the Earth has led to highly populated cities that act as concentrated centers of anthropogenic stressors on the natural environment. The degradation of environmental quality due to such stressors, in turn, greatly impacts human behavior. Anthropogenic stressors largely originate as a result of coupling between man-made urban elements (i.e., networks of engineering and socio-economic infrastructures) and the environment, for which surrounding fluid motions play a key role. In recent years, research efforts have been directed at the understanding and modeling of fluid motions in urban areas, infrastructure dynamics and interactions thereof, with the hope of identifying environmental impacts of urbanization and complex outcomes (or ``emergent properties'') of nominally simple interactions between infrastructures and environment. Such consequences play an important role in determining the ``resilience'' of cities under anthropogenic stressors, defined as maintaining the structure and essential functions of an urbanity without regime shifts. Holistic integrated models that meld the dynamics of infrastructures and environment as well as ``quality of life'' attributes are becoming powerful decision-making tools with regard to sustainability of urban areas (continuance or even enhancement of socio-economic activities in harmony with the environment). The rudimentary forms of integrated models are beginning to take shape, augmented by comprehensive field studies and advanced measurement platforms to validate them. This presentation deals with the challenges of modeling urban atmosphere, subject to anthropogenic forcing. An important emergent property, the Urban Heat Island, and its role in determining resilience and sustainability of cities will be discussed based on the prediction of a coupled model.

  6. Hidden linkages between urbanization and food systems.

    Science.gov (United States)

    Seto, Karen C; Ramankutty, Navin

    2016-05-20

    Global societies are becoming increasingly urban. This shift toward urban living is changing our relationship with food, including how we shop and what we buy, as well as ideas about sanitation and freshness. Achieving food security in an era of rapid urbanization will require considerably more understanding about how urban and food systems are intertwined. Here we discuss some potential understudied linkages that are ripe for further examination. Copyright © 2016, American Association for the Advancement of Science.

  7. Introducing Urban Food Forestry: A Multifunctional Strategy for Enhancing Urban Sustainability

    Science.gov (United States)

    Nicholas, K. A.; Clark, K.

    2012-12-01

    We propose combining elements of urban agriculture and urban forestry into what we call "urban food forestry" (UFF), the practice of growing perennial woody food-producing species ("food trees") in cities. We used four approaches at different scales to gauge the potential of UFF to enhance urban sustainability, in the context of trends including increasing urbanization, resource demands, and climate change. First, we analyzed 37 current international initiatives based around urban food trees, finding that core activities included planting, mapping, and harvesting food trees, but that only about a quarter of initiatives engaged in more than one of these activities necessary to fully utilize the food potential of urban trees. Second, we analyzed 30 urban forestry master plans, finding that only 13% included human food security among their objectives. Third, we used Burlington, Vermont as a case study to quantify the potential caloric output of publicly accessible open space if planted with Malus domestica (the common apple) under 9 different scenarios. We found that the entire caloric deficit of the very low food security population could be met on as few as 29 hectares (representing 16% of total open space), and that 98% of the daily recommended minimum intake of fruit for the entire city's population could be met under the most ambitious planting scenario. Finally, we developed a decision-making tool for selecting potential food trees appropriate for temperate urban environments, the Climate-Food-Species Matrix. We identified a total of 70 species, 30 of which we deemed "highly suitable" for urban food forestry based on their cold hardiness, drought tolerance, and edibility. We conclude that urban food forestry provides multiple pathways for building urban sustainability through local food production, and that our framework can be used to increase the coordination between and effectiveness of a growing number of related initiatives.

  8. Optimal foraging in seasonal environments: implications for residency of Australian flying foxes in food-subsidized urban landscapes

    OpenAIRE

    Paez, David J; Restif, Olivier Louis; Eby, Peggy; Plowright, Raina K

    2018-01-01

    Bats provide important ecosystem services such as pollination of native forests; they are also a source of zoonotic pathogens for humans and domestic animals. Human-induced changes to native habitats may have created more opportunities for bats to reside in urban settings, thus decreasing pollination services to native forests and increasing opportunities for zoonotic transmission. In Australia, fruit bats (Pteropus spp. flying foxes) are increasingly inhabiting urban areas where they feed on...

  9. Radar Methods in Urban Environments

    Science.gov (United States)

    2016-10-26

    and A. Nehorai, "A low-complexity multi-target tracking algorithm in urban environments using sparse modeling ,’’ Signal Processing, Vol. 92, pp. 2199...AFRL-AFOSR-VA-TR-2016-0344 Radar Methods in Urban Environments Arye Nehorai WASHINGTON UNIVERSITY THE Final Report 10/26/2016 DISTRIBUTION A...of information   if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ORGANIZATION . 1. REPORT DATE

  10. The Urban Food-Water Nexus: Modeling Water Footprints of Urban Agriculture using CityCrop

    Science.gov (United States)

    Tooke, T. R.; Lathuilliere, M. J.; Coops, N. C.; Johnson, M. S.

    2014-12-01

    Urban agriculture provides a potential contribution towards more sustainable food production and mitigating some of the human impacts that accompany volatility in regional and global food supply. When considering the capacity of urban landscapes to produce food products, the impact of urban water demand required for food production in cities is often neglected. Urban agricultural studies also tend to be undertaken at broad spatial scales, overlooking the heterogeneity of urban form that exerts an extreme influence on the urban energy balance. As a result, urban planning and management practitioners require, but often do not have, spatially explicit and detailed information to support informed urban agricultural policy, especially as it relates to potential conflicts with sustainability goals targeting water-use. In this research we introduce a new model, CityCrop, a hybrid evapotranspiration-plant growth model that incorporates detailed digital representations of the urban surface and biophysical impacts of the built environment and urban trees to account for the daily variations in net surface radiation. The model enables very fine-scale (sub-meter) estimates of water footprints of potential urban agricultural production. Results of the model are demonstrated for an area in the City of Vancouver, Canada and compared to aspatial model estimates, demonstrating the unique considerations and sensitivities for current and future water footprints of urban agriculture and the implications for urban water planning and policy.

  11. Transforming Food Systems through Food Sovereignty: An Australian Urban Context

    Science.gov (United States)

    Davila, Federico; Dyball, Robert

    2015-01-01

    This article draws on La Via Campesina's definition of food sovereignty and its potential for reconceptualising food as a basic human right within the dominant Australian food discourse. We argue that the educative value that emerges from urban food production in Australia stems from the action of growing food and its capacity to transform…

  12. Neighborhood Disparities in the Restaurant Food Environment.

    Science.gov (United States)

    Martinez-Donate, Ana P; Espino, Jennifer Valdivia; Meinen, Amy; Escaron, Anne L; Roubal, Anne; Nieto, Javier; Malecki, Kristen

    2016-11-01

    Restaurant meals account for a significant portion of the American diet. Investigating disparities in the restaurant food environment can inform targeted interventions to increase opportunities for healthy eating among those who need them most. To examine neighborhood disparities in restaurant density and the nutrition environment within restaurants among a statewide sample of Wisconsin households. Households (N = 259) were selected from the 2009-2010 Survey of the Health of Wisconsin (SHOW), a population-based survey of Wisconsin adults. Restaurants in the household neighborhood were enumerated and audited using the Nutrition Environment Measures Survey for Restaurants (NEMS-R). Neighborhoods were defined as a 2- and 5-mile street-distance buffer around households in urban and non-urban areas, respectively. Adjusted linear regression models identified independent associations between sociodemographic household characteristics and neighborhood restaurant density and nutrition environment scores. On average, each neighborhood contained approximately 26 restaurants. On average, restaurants obtained 36.1% of the total nutrition environment points. After adjusting for household characteristics, higher restaurant density was associated with both younger and older household average age (P restaurant food environment in Wisconsin neighborhoods varies by age, race, and urbanicity, but offers ample room for improvement across socioeconomic groups and urbanicity levels. Future research must identify policy and environmental interventions to promote healthy eating in all restaurants, especially in young and/or rural neighborhoods in Wisconsin.

  13. Electropollution in our urban environment

    OpenAIRE

    Alina Cobzaru

    2015-01-01

    The paper is a descriptive study based on the scientific results coming out from all over the world in the last years (2007-2013), concerning an increasing level of electropollution in our urban envi-ronment as a dangerous health threat mostly in the big and crowded urban places. Electropollution is today subject of serious health damages. The paper mention results of several significant studies including the BioInitiative Report 2012 prepared by 29 authors from ten countries, and covers a se...

  14. Is food-related lifestyle (FRL) able to reveal food consumption patterns in non-Western cultural environments? Its adaptation and application in urban China

    DEFF Research Database (Denmark)

    Grunert, Klaus; Perrea, Toula; Zhou, Yanfeng

    2011-01-01

    Research related to food-related behaviour in China is still scarce, one reason being the fact that food consumption patterns in East Asia do not appear to be easily analyzed by models originating in Western cultures. The objective of the present work is to examine the ability of the food related...

  15. Aquaponics in Urban Agriculture: Social Acceptance and Urban Food Planning

    OpenAIRE

    Georgia Pollard; James D. Ward; Barbara Koth

    2017-01-01

    Aquaponics is emerging as a novel technology with particular potential for urban agriculture (UA). The social acceptance of aquaponics and its place in urban food planning has not previously been studied. This study used focus groups, key informant interviews, and scenario analyses to investigate the reactions of Adelaide’s urban food opinion leaders and local government area (LGA) officials to aquaponics. Most of the focus group participants were unfamiliar with aquaponics. The perceived neg...

  16. Ecohealth Works: Health in Urban Environments

    International Development Research Centre (IDRC) Digital Library (Canada)

    Cities attract millions of people seeking a better life and greater opportunities. ... By looking at urban environments ... Urban environments are changing, exposing people to new .... the river basin that are now actively engaged in promoting ...

  17. FOOD DEMAND PATTERNS IN GHANAIAN URBAN HOUSEHOLDS

    Directory of Open Access Journals (Sweden)

    Bernard SAKYIAMAH

    2018-03-01

    Full Text Available This paper analysed food consumption patterns in Ghanaian urban households by comparing food commodity budget shares and estimating price and expenditure elasticities for eleven food commodity groups across different income groups. The Linear Approximation Almost Ideal Demand System (LA/AIDS was applied to the data. Demand for most of the food commodity groups was found to be elastic. The study concluded that generally, across income groups, food commodities respond negatively to changes in food prices and that cereals/bread, roots/tubers, vegetables, meat and fish will remain an important component of urban household food expenditure. Generally, household demographic characteristics such as age, gender and household size had significant effects on urban food demand patterns.

  18. Electropollution in our urban environment

    Directory of Open Access Journals (Sweden)

    Alina Cobzaru

    2015-06-01

    Full Text Available The paper is a descriptive study based on the scientific results coming out from all over the world in the last years (2007-2013, concerning an increasing level of electropollution in our urban envi-ronment as a dangerous health threat mostly in the big and crowded urban places. Electropollution is today subject of serious health damages. The paper mention results of several significant studies including the BioInitiative Report 2012 prepared by 29 authors from ten countries, and covers a series of questions in this field, in our country to raise awareness of specialists in architecture and constructions services, if we may have designed sustainable, elegant, functionally efficient building com-plexes, without a prolonged exposure to radiofrequency and microwave ra-diations coming from the emitting modern technology.

  19. ‘Smart food city’: conceptual relations between smart city planning, urban food systems and innovation theory

    OpenAIRE

    Maye, Damian

    2018-01-01

    This paper develops a conceptual link between smart city planning and urban food systems research in terms of governance and innovation. The ‘smart city’ concept is linked to an urban research agenda which seeks to embed advances in technology and data collection into the infrastructures of urban environments. Through this neoliberal framework, market-led and technological solutions to city governance and development are prioritised. The urban food movement has a different trajectory compared...

  20. Promoting Productive Urban Green Open Space Towards Food Security: Case Study Taman Sari, Bandung

    Science.gov (United States)

    Ridwan, M.; Sinatra, Fran; Natalivan, Petrus

    2017-10-01

    The common trend of urban population has been growing significantly in Indonesia for decades, are affected by urban green space conversion. Generally, this area is utilized for urban infrastructures and residences. Furthermore, urban area has grown uncontrollably that could enhance the phenomenon of urban sprawl. The conversion of green urban area and agricultural area will significantly decrease urban food security and quality of urban environment. This problem becomes a serious issue for urban sustainability. Bandung is a city with dense population where there are many poor inhabitants. Families living in poverty are subjected to food insecurity caused by the rise of food prices. Based on the urgency of urban food security and urban environment quality the local government has to achieve comprehensive solutions. This research aims to formulate the policy of productive green open space towards food security for poor people in Bandung. This research not only examines the role played by productive green open space to supply food for the urban poor but also how to govern urban areas sustainably and ensure food security. This research uses descriptive explanatory methodology that describes and explains how to generate policy and strategic planning for edible landscape to promote urban food security. Taman Sari is the location of this research, this area is a populous area that has amount of poor people and has a quite worse quality of urban environment. This study shows that urban green open space has the potential to be utilized as an urban farming land, which poor inhabitants could be main actors to manage urban agriculture to provide their food. Meanwhile, local government could contribute to subsidize the financial of urban farming activities.

  1. Radioactive food and environment contamination

    International Nuclear Information System (INIS)

    Yousif, A.M.

    2001-01-01

    The Food and Environment Control Centre of Abu Dhabi Municipality with the help of IAEA has established facilities for regular monitoring of food and environmental samples for radioactive contamination. The Centre is now capable of measuring gamma, beta as well as alpha activity in different types of samples. The main activities in the area of food monitoring are as follows: General monitoring of food gamma radionuclides in foodstuffs by high resolution gamma spectrometry; Determination of specific gamma radionuclides in foodstuffs by high resolution gamma spectrometry; Radiochemical determination of Sr-90 using liquid scintillation analyzer or by gas flow proportional counter; Measurement of gross alpha activity in drinking water

  2. Aquaponics in Urban Agriculture: Social Acceptance and Urban Food Planning

    Directory of Open Access Journals (Sweden)

    Georgia Pollard

    2017-06-01

    Full Text Available Aquaponics is emerging as a novel technology with particular potential for urban agriculture (UA. The social acceptance of aquaponics and its place in urban food planning has not previously been studied. This study used focus groups, key informant interviews, and scenario analyses to investigate the reactions of Adelaide’s urban food opinion leaders and local government area (LGA officials to aquaponics. Most of the focus group participants were unfamiliar with aquaponics. The perceived negatives of the technology received greater attention than the perceived benefits. Aquaponics was thought to be most competitive in either niche or wholesale markets, with a need for scaled guidelines from backyard to large-scale commercial production. For aquaponics in urban settings the influence of urban planning and policy is an important, but to date unstudied, consideration. The urban growers’ opinions of the overcomplicated nature of urban food planning corresponded with the mixed policy responses of the LGAs towards UA. This further supports the participants’ desire for a supportive State Government stance on UA to encourage consistency in LGAs.

  3. Food in the City: Review of Psychological Impact of Growing Food in Urban Spaces

    Directory of Open Access Journals (Sweden)

    Surabhika Maheshwari

    2017-02-01

    Full Text Available The activity of growing food is an integral part of human civilization and survival. The present paper attempts at exploring the psychological impact of growing edible greens in the context of urban environment. The review focuses on the impact of growing food, with primary focus on psychological impact and mental health. The findings indicate an encouraging trend in urban farming, though research activity and academic interest in the area of psychological impact of growing food seems limited. Additionally, the review throws light on the sparse research in developing countries on the said topic.

  4. The Agromere "Arena" : bridging the boundaries between the urban environment and agriculture in Almere (NL)

    NARCIS (Netherlands)

    Jansma, J.E.; Veen, E.J.

    2012-01-01

    Highly urbanised countries like The Netherlands tend towards a sharp delineation between the rural and urban environment, between food production and food consumption. Growing concerns about food prices, food security and the sustainability of the contemporary agri-food system reluctantly places

  5. Exploring the influence of local food environments on food behaviours: a systematic review of qualitative literature.

    Science.gov (United States)

    Pitt, Erin; Gallegos, Danielle; Comans, Tracy; Cameron, Cate; Thornton, Lukar

    2017-09-01

    Systematic reviews investigating associations between objective measures of the food environment and dietary behaviours or health outcomes have not established a consistent evidence base. The present paper aims to synthesise qualitative evidence regarding the influence of local food environments on food and purchasing behaviours. A systematic review in the form of a qualitative thematic synthesis. Urban localities. Adults. Four analytic themes were identified from the review including community and consumer nutrition environments, other environmental factors and individual coping strategies for shopping and purchasing decisions. Availability, accessibility and affordability were consistently identified as key determinants of store choice and purchasing behaviours that often result in less healthy food choices within community nutrition environments. Food availability, quality and food store characteristics within consumer nutrition environments also greatly influenced in-store purchases. Individuals used a range of coping strategies in both the community and consumer nutrition environments to make optimal purchasing decisions, often within the context of financial constraints. Findings from the current review add depth and scope to quantitative literature and can guide ongoing theory, interventions and policy development in food environment research. There is a need to investigate contextual influences within food environments as well as individual and household socio-economic characteristics that contribute to the differing use of and views towards local food environments. Greater emphasis on how individual and environmental factors interact in the food environment field will be key to developing stronger understanding of how environments can support and promote healthier food choices.

  6. Early urban impact on Mediterranean coastal environments.

    Science.gov (United States)

    Kaniewski, David; Van Campo, Elise; Morhange, Christophe; Guiot, Joël; Zviely, Dov; Shaked, Idan; Otto, Thierry; Artzy, Michal

    2013-12-18

    A common belief is that, unlike today, ancient urban areas developed in a sustainable way within the environmental limits of local natural resources and the ecosystem's capacity to respond. This long-held paradigm is based on a weak knowledge of the processes underpinning the emergence of urban life and the rise of an urban-adapted environment in and beyond city boundaries. Here, we report a 6000-year record of environmental changes around the port city of Akko (Acre), Israel, to analyse ecological processes and patterns stemming from the emergence and growth of urban life. We show that early urban development deeply transformed pre-existing ecosystems, swiftly leading to an urban environment already governed by its own ecological rules and this, since the emergence of the cities.

  7. Early urban impact on Mediterranean coastal environments

    Science.gov (United States)

    Kaniewski, David; van Campo, Elise; Morhange, Christophe; Guiot, Joël; Zviely, Dov; Shaked, Idan; Otto, Thierry; Artzy, Michal

    2013-12-01

    A common belief is that, unlike today, ancient urban areas developed in a sustainable way within the environmental limits of local natural resources and the ecosystem's capacity to respond. This long-held paradigm is based on a weak knowledge of the processes underpinning the emergence of urban life and the rise of an urban-adapted environment in and beyond city boundaries. Here, we report a 6000-year record of environmental changes around the port city of Akko (Acre), Israel, to analyse ecological processes and patterns stemming from the emergence and growth of urban life. We show that early urban development deeply transformed pre-existing ecosystems, swiftly leading to an urban environment already governed by its own ecological rules and this, since the emergence of the cities.

  8. Soils in urban and industrial environments

    International Nuclear Information System (INIS)

    Burghardt, W.

    1994-01-01

    Urban areas are expanding rapidly. Therefore the interest in soil science activities on urban and industrial sites grows. The paper gives an overview of the research and mapping activities in Germany. A model of soils in urban ecosystems shows the relationships of development of soils and soil quality to land use. The water regime of soils is influenced by the characteristics of urban landscape and sealing. Of special interest are the typical substrates. Some properties of soils which develop on tipped substrates of natural material are discussed. Of importance are technological substrates as rubble, ash, slag, waste material and sludges in urban environments. Proposals of classification of urban and industrial soils are presented. For proper use by the municipal authorities availability and application of information on urban soils must be a part of research. (orig.) [de

  9. Food Insecurity in Urban and Rural Areas in Central Brazil: Transition from Locally Produced Foods to Processed Items.

    Science.gov (United States)

    Rodrigues, Livia Penna Firme; Carvalho, Raissa Costa; Maciel, Agatha; Otanasio, Polyanna Nunes; Garavello, Maria Elisa de Paula Eduardo; Nardoto, Gabriela Bielefeld

    2016-01-01

    Aiming to investigate the effect of diet and food consumption with regard to health, environment, and economy in light of nutrition ecology, we studied the dimensions of nutrition and food security in urban and rural settings in the region of Chapada dos Veadeiros, Central Brazil. We tracked diet and food consumption through carbon and nitrogen stable isotope ratios in fingernails of these inhabitants together with food intake data as a proxy for their diet patterns. We estimated household food insecurity by using the Brazilian Food Insecurity Scale. Nutrition and food insecurity was observed in both urban and rural areas, but was accentuated in rural settings. The diet pattern had high δ(13)C values in fingernails and low δ(15)N. Both urban and rural areas have diets with low diversity and relying on low-quality processed food staples at the same time that nutrition and food insecurity is quite high in the region.

  10. Food safety concerns of fast food consumers in urban Ghana.

    Science.gov (United States)

    Omari, Rose; Frempong, Godfred

    2016-03-01

    In Ghana, out-of-home ready-to-eat foods including fast food generally have been associated with food safety problems. Notwithstanding, fast food production and consumption are increasing in Ghana and therefore this study sought to determine the food safety issues of importance to consumers and the extent to which they worry about them. First, through three focus group discussions on consumers' personal opinions about food safety issues, some emergent themes were obtained, which were used to construct an open-ended questionnaire administered face-to-face to 425 respondents systematically sampled from 20 fast food restaurants in Accra. Findings showed that most fast food consumers were concerned about food hazards such as pesticide residue in vegetables, excessive use of artificial flavour enhancers and colouring substances, bacterial contamination, migrated harmful substances from plastic packages, and general unhygienic conditions under which food is prepared and sold. Consumers also raised concerns about foodborne diseases such as cholera, typhoid, food poisoning, diarrhoea, bird flu and swine flu. The logistic regression model showed that being male increased the likelihood of worrying about general food safety issues and excessive use of flavour enhancers than in females while being youthful increased the likelihood of being worried about typhoid fever than in older consumers. These findings imply that consumers in urban Ghana are aware and concerned about current trends of food safety and foodborne disease challenges in the country. Therefore, efforts targeted at improving food safety and reducing incidences of foodborne diseases should not only focus on public awareness creation but should also design more comprehensive programmes to ensure the making of food safety rules and guidelines and enforcing compliance to facilitate availability and consumers' choice of safe foods. Copyright © 2015 Elsevier Ltd. All rights reserved.

  11. Alternative Approaches to Food: Community Supported Agriculture in Urban China

    Directory of Open Access Journals (Sweden)

    Kees Krul

    2017-05-01

    Full Text Available One of the most remarkable features of China’s development path is its large-scale and fast-paced urbanization. As cities already accommodate more than half of China’s population, new challenges to urban food systems have emerged concurrently. Concerns over environmental degradation and food safety have provoked growing dissatisfaction with China’s food regime. Amidst these concerns, the aim of this paper is to study the role of new and alternative approaches to food, focusing in on the question of how community supported agriculture (CSA can deal with the food-related issues emerging from China’s development. The paper adopts Granovetter’s notions of social embeddedness to describe CSA’s relational role in consumer-farmer dynamics, as well as the structural role within its broader relational context. Empirical data is drawn from surveys distributed among CSA farms, and interviews with key stakeholders in the Chinese CSA movement. The study finds that the model of CSA demonstrates an innovative approach to deal with food safety issues, address sustainability, and operate in an environment where future food demands are most critical. Although the movement’s structural embeddedness is bound by several limitations and contradictions, it is argued that the CSA model offers important insights and adds value into ameliorating China’s food systems.

  12. Food Environments around American Indian Reservations: A Mixed Methods Study.

    Science.gov (United States)

    Chodur, Gwen M; Shen, Ye; Kodish, Stephen; Oddo, Vanessa M; Antiporta, Daniel A; Jock, Brittany; Jones-Smith, Jessica C

    2016-01-01

    To describe the food environments experienced by American Indians living on tribal lands in California. Geocoded statewide food business data were used to define and categorize existing food vendors into healthy, unhealthy, and intermediate composite categories. Distance to and density of each of the composite food vendor categories for tribal lands and nontribal lands were compared using multivariate linear regression. Quantitative results were concurrently triangulated with qualitative data from in-depth interviews with tribal members (n = 24). After adjusting for census tract-level urbanicity and per capita income, results indicate there were significantly fewer healthy food outlets per square mile for tribal areas compared to non-tribal areas. Density of unhealthy outlets was not significantly different for tribal versus non-tribal areas. Tribal members perceived their food environment negatively and reported barriers to the acquisition of healthy food. Urbanicity and per capita income do not completely account for disparities in food environments among American Indians tribal lands compared to nontribal lands. This disparity in access to healthy food may present a barrier to acting on the intention to consume healthy food.

  13. Food Environments around American Indian Reservations: A Mixed Methods Study.

    Directory of Open Access Journals (Sweden)

    Gwen M Chodur

    Full Text Available To describe the food environments experienced by American Indians living on tribal lands in California.Geocoded statewide food business data were used to define and categorize existing food vendors into healthy, unhealthy, and intermediate composite categories. Distance to and density of each of the composite food vendor categories for tribal lands and nontribal lands were compared using multivariate linear regression. Quantitative results were concurrently triangulated with qualitative data from in-depth interviews with tribal members (n = 24.After adjusting for census tract-level urbanicity and per capita income, results indicate there were significantly fewer healthy food outlets per square mile for tribal areas compared to non-tribal areas. Density of unhealthy outlets was not significantly different for tribal versus non-tribal areas. Tribal members perceived their food environment negatively and reported barriers to the acquisition of healthy food.Urbanicity and per capita income do not completely account for disparities in food environments among American Indians tribal lands compared to nontribal lands. This disparity in access to healthy food may present a barrier to acting on the intention to consume healthy food.

  14. Biological diversity in urban environments

    OpenAIRE

    Gyllin, Mats

    2004-01-01

    The thesis approaches the concept of urban biodiversity from different angles in an attempt to explain its significance. In a study from the constructed Toftanäs wetland park, methods of affecting local biodi-versity are demonstrated as integrated with other functions, such as water quality and stormwater detention. Vegetation analyses are provided to show the rapid and sometimes unexpected change in species composition. Both spontaneous and introduced species were followed in a five-year pro...

  15. Urban household food security, Madagascar.

    Science.gov (United States)

    Balachander, J

    1997-12-01

    This article discusses the success of the Madagascar Food Security and Nutrition project in decreasing malnutrition and monitoring child health. Success has occurred in the following realms: effective collaboration between government and nongovernmental organizations (NGOs), capacity building through investment in training of community workers, increased quality of services provided by community nutrition workers, community involvement, government commitment, and a flexible program design. NGOs were able to respond to community concerns by adding program inputs without losing the focus on core nutrition interventions. Community workers were selected from a group of mothers. Women were trained to monitor the growth of all children under age 5. Children who were severely malnourished were identified and referred to rehabilitation centers for treatment lasting up to 3 weeks. The program offered support and nutrition education for mothers of sick children. One drawback of the treatment program was the inability of mothers to stay for long periods of time during the duration of treatment. The program offers distribution of iodine capsules as part of a long-term salt iodization program that is supported by UNICEF and the World Bank. The program also offers microcredit. Since 1993, 28,000 children under age 5 have been weighed each month. These children came from two provinces and belonged to 300,000 families. The monitored children were 66% of the total number of children aged under 5 years. Malnutrition rates decreased from 46% to 37%.

  16. Climate Change Resilience in the Urban Environment

    Science.gov (United States)

    Kershaw, Tristan

    2017-12-01

    Between 1930 and 2030, the world's population will have flipped from 70% rural to 70% urban. While much has been written about the impacts of climate change and mitigation of its effects on individual buildings or infrastructure, this book is one of the first to focus on the resilience of whole cities. It covers a broad range of area-wide disaster-level impacts, including drought, heatwaves, flooding, storms and air quality, which many of our cities are ill-adapted to cope with, and unless we can increase the resilience of our urban areas then much of our current building stock may become uninhabitable. Climate Resilience in Urban Environments provides a detailed overview of the risks for urban areas, including those risks to human health as well as to building integrity, the physical processes involved, and presents key information in which way the risks can be reduced and urban areas made more resilient.

  17. Roundtable on Urban Living Environment Research (RULER).

    Science.gov (United States)

    Vlahov, David; Agarwal, Siddharth Raj; Buckley, Robert M; Caiaffa, Waleska Teixeira; Corvalan, Carlos F; Ezeh, Alex Chika; Finkelstein, Ruth; Friel, Sharon; Harpham, Trudy; Hossain, Maharufa; de Faria Leao, Beatriz; Mboup, Gora; Montgomery, Mark R; Netherland, Julie C; Ompad, Danielle C; Prasad, Amit; Quinn, Andrew T; Rothman, Alexander; Satterthwaite, David E; Stansfield, Sally; Watson, Vanessa J

    2011-10-01

    For 18 months in 2009-2010, the Rockefeller Foundation provided support to establish the Roundtable on Urban Living Environment Research (RULER). Composed of leading experts in population health measurement from a variety of disciplines, sectors, and continents, RULER met for the purpose of reviewing existing methods of measurement for urban health in the context of recent reports from UN agencies on health inequities in urban settings. The audience for this report was identified as international, national, and local governing bodies; civil society; and donor agencies. The goal of the report was to identify gaps in measurement that must be filled in order to assess and evaluate population health in urban settings, especially in informal settlements (or slums) in low- and middle-income countries. Care must be taken to integrate recommendations with existing platforms (e.g., Health Metrics Network, the Institute for Health Metrics and Evaluation) that could incorporate, mature, and sustain efforts to address these gaps and promote effective data for healthy urban management. RULER noted that these existing platforms focus primarily on health outcomes and systems, mainly at the national level. Although substantial reviews of health outcomes and health service measures had been conducted elsewhere, such reviews covered these in an aggregate and perhaps misleading way. For example, some spatial aspects of health inequities, such as those pointed to in the 2008 report from the WHO's Commission on the Social Determinants of Health, received limited attention. If RULER were to focus on health inequities in the urban environment, access to disaggregated data was a priority. RULER observed that some urban health metrics were already available, if not always appreciated and utilized in ongoing efforts (e.g., census data with granular data on households, water, and sanitation but with little attention paid to the spatial dimensions of these data). Other less obvious elements

  18. Urban food self-reliance: significance and prospects.

    Science.gov (United States)

    Mougeot, L J

    1993-10-01

    This news account provides coverage of the satisfaction of urban food needs when retail costs are prohibitively high in developing countries. This account reports that 50-80% of average income is spent on food in nearly 50% of developing country's largest cities. Surveys conducted during the late 1980s confirm a range of 60-80% of income for expenditures on food. Surveys reveal that urban food costs are 10-30% higher than costs for rural dwellers. Urban household food production is a practice that has been around since the times of the Aztecs, the Incas, and Mayan cities. Reports survive of the Javanese and city dwellers along the Tigris and Euphrates producing their own food. Asian policy makers promote urban food production as critical to urban survival. Other factors influence urban food production. These factors include rapid urbanization, ineffective agricultural policies, inadequate food distribution systems, withdrawal of subsidies, reduction of wages, inflation, unemployment, lax urban regulations, civil strife, and drought. Government agencies are sometimes obstacles in outlawing the practice. Recent support for urban agriculture includes ten Asian, six African, and six Latin American countries. The number of urban farm workers is reported as 200 million worldwide. 700 million receive the benefits of urban agriculture. 25% of urban households in the US were engaged in urban food production during the 1980s. Better information, such as in comparative and longitudinal studies, is needed on urban poverty and the links between nutrition, income, employment, waste, and environmental issues. If cost-benefit analysis research finds a positive impact, then urban planners may need to incorporate city farming into conventional land use. The value of city farming needs to be assessed. Street food vending is an important source of income, particularly for women. Urban farming requires efficiency of space and knowledge of advances in technology and planning.

  19. Urban environment and vegetation: comfort and urban heat island mitigation

    Directory of Open Access Journals (Sweden)

    Adriano Magliocco

    2014-10-01

    Full Text Available This paper analyses the outcomes of an experimental simulation on the microclimatic effects and on thermal comfort of vegetation in urban environment, conducted by means of a three-dimensional microclimate model, ENVI- met 3.1. The simulation considers a wide range of hypothetical cases of typical city areas with different characteristics related to: building density, building height, vegetation type and density. The results of the study show how different combinations of amount and type of vegetation, density and height of buildings affect the urban heat island phenomenon in Mediterranean climate.

  20. Testing the environmental performance of urban agriculture as a food supply in northern climates

    DEFF Research Database (Denmark)

    Goldstein, Benjamin Paul; Hauschild, Michael Zwicky; Fernandez, John

    2016-01-01

    The past decade has seen a renaissance of urban agriculture in the world's wealthy, northern cities. The practice of producing food in and around cities is championed as a method to reduce environmental impacts of urban food demands (reducing distance from farm to fork - ‘food miles’) whilst......, though opposite findings emerge when external energy inputs are significant. In this study we perform an environmental life cycle assessment of six urban farms in Boston, US producing lettuce and tomatoes, with conventional counterparts across six impact categories. Performance of urban agriculture...... conferring a number of ancillary benefits to host cities (runoff attenuation, urban heat island mitigation) and ex-urban environments (carbon sequestration). Previous environmental assessments have found urban agriculture to be more sustainable than conventional agriculture when performed in mild climates...

  1. Food Security and Productivity among Urban Farmers in Kaduna ...

    African Journals Online (AJOL)

    User

    Food Security and Productivity among Urban Farmers in Kaduna State, Nigeria https://dx.doi.org/10.4314/jae.v22i1.15. Saleh, M.K. ... increase income of urban farmers in the area. Keywords: Food security, urban agricultural productivity, farming household. ..... Access to Bank loans. 8. Factors Affecting Entrepreneurial and ...

  2. Mobile wireless network for the urban environment

    Science.gov (United States)

    Budulas, Peter; Luu, Brian; Gopaul, Richard

    2005-05-01

    As the Army transforms into the Future Force, particular attention must be paid to operations in Complex and Urban Terrain. Our adversaries increasingly draw us into operations in the urban environment and one can presume that this trend will continue in future battles. In order to ensure that the United States Army maintains battlefield dominance, the Army Research Laboratory (ARL) is developing technology to equip our soldiers for the urban operations of the future. Sophisticated soldier borne systems will extend sensing to the individual soldier, and correspondingly, allow the soldier to establish an accurate picture of their surrounding environment utilizing information from local and remote assets. Robotic platforms will be an integral part of the future combat team. These platforms will augment the team with remote sensing modalities, task execution capabilities, and enhanced communication systems. To effectively utilize the products provided by each of these systems, collected data must be exchanged in real time to all affected entities. Therefore, the Army Research Laboratory is also developing the technology that will be required to support high bandwidth mobile communication in urban environments. This technology incorporates robotic systems that will allow connectivity in areas unreachable by traditional systems. This paper will address some of the issues of providing wireless connectivity in complex and urban terrain. It will further discuss approaches developed by the Army Research Laboratory to integrate communications capabilities into soldier and robotic systems and provide seamless connectivity between the elements of a combat team, and higher echelons.

  3. GOOD PRACTICES FOR SUSTAINABLE URBAN FOOD POLICIES

    Directory of Open Access Journals (Sweden)

    Cristina Elena NICOLESCU

    2017-12-01

    Full Text Available The paper, based on the coordinates of the problems triggered by the negative externalities chain generated by the poor food supply and production system at the level of the urban collectivities, carries out an analysis focused on the identification of the tools, mechanisms, and good practices needed to ensure the sustainability of the local policies on public nutrition. The experiences in the field show that the progress is remarkable in the case of collaborative administrations aimed at enhancing the cooperation and partnership relations, based on common interests, on both internal and international collaboration level, such as The Milan Urban Food Policy Pact (2015. From this perspective, the paper presents a case study, a significant experience of improving the food supply system of Bucharest population, through local public nutrition policy and the public action set implemented by Bucharest local authorities with the support of State public bodies and the representatives of civil society, materialized in the establishment of peasant markets as flea markets on the territory of Bucharest.

  4. Towards a CO² neutral urban environment

    DEFF Research Database (Denmark)

    Poulsen, Søren; Katic, Ivan; Jensen, Katrine F.

    Products with PV integrated are not yet a common sight in the urban environment. The best known example is parking meters. The additional price caused by the PV is offset by savings by avoiding replacement of batteries and digging up the road for a cable to the grid. An ongoing project aims at pr...

  5. Food sustainability, food security and the environment

    NARCIS (Netherlands)

    Helms, M.

    2004-01-01

    Sustainable development requires a deliberate choice in the direction of societal transition, but the options are narrowed down by the obligation to feed a growing world population. At present sufficient food is produced, but large differences exist in per capita supply. Poverty prevents many people

  6. Improving the environment in urban areas

    Energy Technology Data Exchange (ETDEWEB)

    Adamkus, V.V.

    1994-12-31

    The author discusses the need for improvements to the environment in urban areas, and efforts being made under the direction of the Environmental Protection Agency (EPA) to address these problems. The impact the new Clean Air Act can have on emissions from gasoline powered autos, diesel burning trucks, fixed emission sources ranging from utilities to chemical plants, and consumer products like hair sprays and charcoal starters, will all work together to improve air quality in urban areas. The author also discusses Brownfields Economic Redevelopment Plan efforts being supported by the EPA in a coordinated plan to get municipalities involved in cleaning up areas with pollution, to remove the blight on the urban areas, provide new land for development, and promote additional jobs.

  7. An Urban Food Store Intervention Positively Affects Food-Related Psychosocial Variables and Food Behaviors

    Science.gov (United States)

    Gittelsohn, Joel; Song, Hee-Jung; Suratkar, Sonali; Kumar, Mohan B.; Henry, Elizabeth G.; Sharma, Sangita; Mattingly, Megan; Anliker, Jean A.

    2010-01-01

    Obesity and other diet-related chronic diseases are more prevalent in low-income urban areas, which commonly have limited access to healthy foods. The authors implemented an intervention trial in nine food stores, including two supermarkets and seven corner stores, in a low-income, predominantly African American area of Baltimore City, with a…

  8. Crime: impacts of urban design and environment

    Directory of Open Access Journals (Sweden)

    Paula Santana

    2013-07-01

    Full Text Available The criminal research has confirmed that there are clear patterns of crime, with concentrations in specific places at specific times. That is to say, incidence of crime are not distributed randomly; rather, there are certain areas in cities that are relatively small, but where crimes occur much more frequently than elsewhere (the so-called “hotspots”, making them highly vulnerable and predictable. Urban design and environment may play a part in the decision of whether or not to commit a crime; for example, the lack of natural vigilance, poor lighting and other variables mean that a small area may easily be transformed into a potential crime hotspot. The relationship between specific aspects of urban design and the formation of “hotspots” is present in the theory of “Crime Prevention through Environmental Design” (CPTED. This paper examines the relationship between the “hotspots” and the characteristics of the environment, in accordance with CPTED Index, in one city from the Lisbon Metropolitan Area (Amadora. The results highlight the need to reassess specific elements of urban design. This fact has drawn attention to the study of localities and urban design.

  9. Assessment of expenditure on food among urban households and ...

    African Journals Online (AJOL)

    ... on food among urban households and it's implication for food security: Evidence from ... of the sample for the study involved a three-stage sampling technique. ... of enhancing their income to improve the household and economic conditions.

  10. Improving the Urban Environment experiences in Peshawar

    International Nuclear Information System (INIS)

    Malik, M.

    2001-01-01

    This paper summarizes the experiences of the Pak-German Urban Industrial Environment Protection (UIEP) Program that was implemented in Peshawar, North-West Frontier Province (NWFP), Pakistan from May 1996 to October 2000. Under the UIEP, which had the goal of improving the environmental situation in NWFP, pilot-projects focusing on air pollution control from vehicular emissions and brick kilns, improvement of solid waste collection and disposal of outdated pesticides were implemented. In addition, a number of studies and surveys focusing on hospital waste management, pressure horns, ambient noise level, fuel and oil adulteration and ambient air quality were undertaken. The paper highlights the strategies used for the implementation of the pilot-projects and presents useful data concerning the urban environment of NWFP. (author)

  11. Alternative approaches to food: Community supported agriculture in urban China

    OpenAIRE

    Krul, K.; Ho, P.P.S.

    2017-01-01

    One of the most remarkable features of China's development path is its large-scale and fast-paced urbanization. As cities already accommodate more than half of China's population, new challenges to urban food systems have emerged concurrently. Concerns over environmental degradation and food safety have provoked growing dissatisfaction with China's food regime. Amidst these concerns, the aim of this paper is to study the role of new and alternative approaches to food, focusing in on the quest...

  12. Urban Environment in European Big Cities

    Czech Academy of Sciences Publication Activity Database

    Vaishar, Antonín; Cetkovský, Stanislav; Kallabová, Eva; Klusáček, Petr; Kolibová, Barbora; Lacina, Jan; Mikulík, Oldřich; Zapletalová, Jana

    2006-01-01

    Roč. 14, č. 1 (2006), s. 46-62 ISSN 1210-8812 Grant - others:EU(XE) EVK4-CT-2002-00086 Institutional research plan: CEZ:AV0Z3086906 Keywords : European big cities * urban environment * reurbanisation * životní prostředí * Bologna * Ljubljana * León * Brno * Leipzig Subject RIV: DE - Earth Magnetism, Geodesy, Geography

  13. City Level of Income and Urbanization and Availability of Food Stores and Food Service Places in China

    Science.gov (United States)

    Liao, Chunxiao; Tan, Yayun; Wu, Chaoqun; Wang, Shengfeng; Yu, Canqing; Cao, Weihua; Gao, Wenjing; Lv, Jun; Li, Liming

    2016-01-01

    Objective The contribution of unhealthy dietary patterns to the epidemic of obesity has been well recognized. Differences in availability of foods may have an important influence on individual eating behaviors and health disparities. This study examined the availability of food stores and food service places by city characteristics on city level of income and urbanization. Methods The cross-sectional survey was comprised of two parts: (1) an on-site observation to measure availability of food stores and food service places in 12 cities of China; (2) an in-store survey to determine the presence of fresh/frozen vegetables or fruits in all food stores. Trained investigators walked all the streets/roads within study tracts to identify all the food outlets. An observational survey questionnaire was used in all food stores to determine the presence of fresh/frozen vegetables or fruits. Urbanization index was determined for each city using a principal components factor analysis. City level of income and urbanization and numbers of each type of food stores and food service places were examined using negative binomial regression models. Results Large-sized supermarkets and specialty retailers had higher number of fresh/frozen vegetables or fruits sold compared to small/medium-sized markets. High-income versus low-income, high urbanized versus low urbanized areas had significantly more large-sized supermarkets and fewer small/medium-sized markets. In terms of restaurants, high urbanized cities had more western fast food restaurants and no statistically significant difference in the relative availability of any type of restaurants was found between high- and low-income areas. Conclusions The findings suggested food environment disparities did exist in different cities of China. PMID:26938866

  14. City Level of Income and Urbanization and Availability of Food Stores and Food Service Places in China.

    Science.gov (United States)

    Liao, Chunxiao; Tan, Yayun; Wu, Chaoqun; Wang, Shengfeng; Yu, Canqing; Cao, Weihua; Gao, Wenjing; Lv, Jun; Li, Liming

    2016-01-01

    The contribution of unhealthy dietary patterns to the epidemic of obesity has been well recognized. Differences in availability of foods may have an important influence on individual eating behaviors and health disparities. This study examined the availability of food stores and food service places by city characteristics on city level of income and urbanization. The cross-sectional survey was comprised of two parts: (1) an on-site observation to measure availability of food stores and food service places in 12 cities of China; (2) an in-store survey to determine the presence of fresh/frozen vegetables or fruits in all food stores. Trained investigators walked all the streets/roads within study tracts to identify all the food outlets. An observational survey questionnaire was used in all food stores to determine the presence of fresh/frozen vegetables or fruits. Urbanization index was determined for each city using a principal components factor analysis. City level of income and urbanization and numbers of each type of food stores and food service places were examined using negative binomial regression models. Large-sized supermarkets and specialty retailers had higher number of fresh/frozen vegetables or fruits sold compared to small/medium-sized markets. High-income versus low-income, high urbanized versus low urbanized areas had significantly more large-sized supermarkets and fewer small/medium-sized markets. In terms of restaurants, high urbanized cities had more western fast food restaurants and no statistically significant difference in the relative availability of any type of restaurants was found between high- and low-income areas. The findings suggested food environment disparities did exist in different cities of China.

  15. City Level of Income and Urbanization and Availability of Food Stores and Food Service Places in China.

    Directory of Open Access Journals (Sweden)

    Chunxiao Liao

    Full Text Available The contribution of unhealthy dietary patterns to the epidemic of obesity has been well recognized. Differences in availability of foods may have an important influence on individual eating behaviors and health disparities. This study examined the availability of food stores and food service places by city characteristics on city level of income and urbanization.The cross-sectional survey was comprised of two parts: (1 an on-site observation to measure availability of food stores and food service places in 12 cities of China; (2 an in-store survey to determine the presence of fresh/frozen vegetables or fruits in all food stores. Trained investigators walked all the streets/roads within study tracts to identify all the food outlets. An observational survey questionnaire was used in all food stores to determine the presence of fresh/frozen vegetables or fruits. Urbanization index was determined for each city using a principal components factor analysis. City level of income and urbanization and numbers of each type of food stores and food service places were examined using negative binomial regression models.Large-sized supermarkets and specialty retailers had higher number of fresh/frozen vegetables or fruits sold compared to small/medium-sized markets. High-income versus low-income, high urbanized versus low urbanized areas had significantly more large-sized supermarkets and fewer small/medium-sized markets. In terms of restaurants, high urbanized cities had more western fast food restaurants and no statistically significant difference in the relative availability of any type of restaurants was found between high- and low-income areas.The findings suggested food environment disparities did exist in different cities of China.

  16. Community Food Environment, Home Food Environment, and Fruit and Vegetable Intake of Children and Adolescents

    Science.gov (United States)

    Ding, Ding; Sallis, James F.; Norman, Gregory J.; Saelens, Brian E.; Harris, Sion Kim; Kerr, Jacqueline; Rosenberg, Dori; Durant, Nefertiti; Glanz, Karen

    2012-01-01

    Objectives: To determine (1) reliability of new food environment measures; (2) association between home food environment and fruit and vegetable (FV) intake; and (3) association between community and home food environment. Methods: In 2005, a cross-sectional survey was conducted with readministration to assess test-retest reliability. Adolescents,…

  17. Urbanization, housing and environment: Megacities of Africa

    Directory of Open Access Journals (Sweden)

    Olusola Oladapo Makinde

    2012-12-01

    Full Text Available This paper takes a look at urbanization, housing and environment in Africa megacities; it enumerates the problems caused by the continued influx of migrant into cities, and state the government, private and public organization effort in solving these challenges. It found out that with proper management, the chilling prospect of a serious deterioration in quality of life could be averted. The report noted that continuing migration from rural to urban areas will expand the number of megacities, and it concedes that megacities are often plagued by environmental deterioration, inadequate housing, traffic congestion, social alienation slums, crime and homelessness. Etc. The paper, observed that megacities are important to a country's economic development, and also provide residents with a satisfying quality of life, if properly managed. The report looked for ways of solving the problems to a significant degree and observed that nearly in all cases, the gaps between demand and supply are management related, and recommends ways of improving the quality of citizen life by provision of adequate and quality housing, reduction in land costs, healthy environment, clean water and sanitation services, security within the city, employment opportunity, bolstering urban farming, and improving public transportation and make sure that the megacities are beneficial to the environment as well as to the national economy. The paper admits that the solutions are far from easy. It is difficult to predict what will happen if there are shortfalls in the financing of megacity growth and management.

  18. Urban Intensification and Expansion in Sub-Saharan Africa: Impacts on Urban Agriculture and Food Security

    Science.gov (United States)

    Uzokwe, V. N. E. N.; Muchelo, R. O.; Odeh, I. A.

    2015-12-01

    In Sub-Saharan Africa (SSA), urban intensification and expansion are increasing at alarming rates due to rapid population growth and rural-to-urban migration. This has led to the premise that the proportion of SSA urban residents most vulnerable to food insecurity is the highest in the world. Using a focused survey and multi-temporal (decadal) land use/cover classification of Landsat images, we explored the effect of urban intensification and expansion on urban agriculture and food security, focusing on a megacity and a regional center in Uganda: Kampala and Mbarara, respectively. We found that food insecurity arose due to a number of reasons, among which are: i) expansion and intensification of of urban settlements into previously productive agricultural lands in urban and peri-urban areas; ii) loss of predominantly young (rural agricultural) adult labor force to urban centers, leading to decline in rural food production; iii) lack of proper urban planning incorporating green and agricultural development leading to low productive market garden systems. We discussed these outcomes in light of existing studies which estimated that urban agriculture alone supports over 800 million people globally and accounts for 15-20% of world food supply. In spite of this relatively low contribution by urban/peri-urban agriculture, it probably accounts for higher proportion of food supply to urban poor in SSA and thus are most vulnerable to the loss of urban and peri-urban agricultural land. Further recommendations require policy makers and urban planners to team up to design a suitable framework for sustainable urban planning and development.

  19. Association between fast food purchasing and the local food environment.

    Science.gov (United States)

    Thornton, Lukar E; Kavanagh, A M

    2012-12-03

    In this study, an instrument was created to measure the healthy and unhealthy characteristics of food environments and investigate associations between the whole of the food environment and fast food consumption. In consultation with other academic researchers in this field, food stores were categorised to either healthy or unhealthy and weighted (between +10 and -10) by their likely contribution to healthy/unhealthy eating practices. A healthy and unhealthy food environment score (FES) was created using these weightings. Using a cross-sectional study design, multilevel multinomial regression was used to estimate the effects of the whole food environment on the fast food purchasing habits of 2547 individuals. Respondents in areas with the highest tertile of the healthy FES had a lower likelihood of purchasing fast food both infrequently and frequently compared with respondents who never purchased, however only infrequent purchasing remained significant when simultaneously modelled with the unhealthy FES (odds ratio (OR) 0.52; 95% confidence interval (CI) 0.32-0.83). Although a lower likelihood of frequent fast food purchasing was also associated with living in the highest tertile of the unhealthy FES, no association remained once the healthy FES was included in the models. In our binary models, respondents living in areas with a higher unhealthy FES than healthy FES were more likely to purchase fast food infrequently (OR 1.35; 95% CI 1.00-1.82) however no association was found for frequent purchasing. Our study provides some evidence to suggest that healthier food environments may discourage fast food purchasing.

  20. Alternative approaches to food : Community supported agriculture in urban China

    NARCIS (Netherlands)

    Krul, K.; Ho, P.P.S.

    2017-01-01

    One of the most remarkable features of China's development path is its large-scale and fast-paced urbanization. As cities already accommodate more than half of China's population, new challenges to urban food systems have emerged concurrently. Concerns over environmental degradation and food

  1. The Impact of Urban Solid Waste Management on Urban Environment

    Directory of Open Access Journals (Sweden)

    خالد عبد الوهاب

    2017-03-01

    Full Text Available The growing population and the rising standard of living in cities as well as the increased commercial, industrial and agricultural activities around the world led to massive production of waste containing different materials and one of them is the municipal solid waste (MSW, so there is a major problem facing the cities around the world about the waste, how to collect, transfer it and how to discard it. Because the accumulation of wastes, whether in the city alleys or in its squares and especially in its residential areas affect the health of their populations besides this situation will be a major indication of the deteriorating quality of life in the city, as hygiene considered a fundamental criterion for the city beauty as well as an indication of the protection provided by the city to their environment and the level of protection provided to the health of city residence. The accumulated waste which is left in the city without treatment significantly affects the psychological behavior of the residence of these areas towards their community and environment and therefore their behavior towards their regions and their cities. From here emerged the general research problem concerning the modern civilization and its lifestyle that produced great amounts of (municipal solid waste, which became a big problem facing the modern cities concerning their collection, transportation and finally their disposal, how can these great amounts of waste be used whether by recycling, energy recovery or transferring to plant fertilizers ... etc. To serve the sustainable growth of these modern cities, this lead to the specific research problem concerning the lack of clarity concerning the impact of waste collection, transporting and treating and city urban environment and its townscape. Research Hypothesis: The process of collecting, transporting and. treating city solid waste or using it has a great impact on city urban environment and its townscape.

  2. Food insecurity in households in informal settlements in urban South Africa.

    Science.gov (United States)

    Naicker, N; Mathee, A; Teare, J

    2015-04-01

    Food insecurity in the urban poor is a major public health challenge. The Health, Environment and Development study assessed trends in food insecurity and food consumption over a period of 7 years in an informal settlement in Johannesburg, South Africa (SA). Annual cross-sectional surveys were conducted in the informal settlement (Hospital Hill). The degree of household food insecurity decreased significantly from 2006 (85%) to 2012 (70%). There was a spike in 2009 (91%), possibly owing to global food price increases. Childhood food insecurity followed the same trend as household food insecurity. During the first 3 study years, consumption of protein, vegetables and fruit decreased by 10-20%, but had returned to previous levels by 2012. In this study, although declining, food insecurity remains unacceptably high. Hunger relief and poverty alleviation need to be more aggressively implemented in order to improve the quality of life in poor urban communities in SA.

  3. Multifunctional Peri-Urban Agriculture and Local Food Access in the Kathmandu Valley, Nepal: A Review

    Directory of Open Access Journals (Sweden)

    Shreema Rana

    2015-12-01

    Full Text Available Based on the threatening global challenge of increasing urban population with decreasing resources to feed them, the existing literature is reviewed in this paper to highlight; i the urban food supply chain, and ii food security as a benefit of Peri-Urban Agriculture. This is deployed to fit the context of the developing regions of the world where urbanization does not occur in an organized manner. It is known that food grown in peri-urban areas (defined as the fastest growing areas that surround cities but are neither urban nor rural in the conventional sense is easily available to urban inhabitants. Such peri-urban areas have the least adverse effects on the environment from a food transportation perspective and are more resilient in times of uncertain physical (disaster and socioeconomic (fuel and food price rise pressures. Today, much fertile peri-urban land is converted haphazardly without considering its environmental value and agricultural potential. Likewise, peri-urban agriculture is still in the process of being acknowledged by both locals and policy-makers despite being an accepted mode of achieving food security. Therefore, this paper seeks to orient the review literature and underline the gaps that prevail at the grass-roots level of local preferences and values and at the policy-maker level. Using extensive literature review as the methodology, this study draws recent ideas on the multi-functionality of peri-urban agriculture and the sustainable contribution it makes to both developed and developing countries around the world. The findings of the review highlight the significance of peri-urban areas in the Kathmandu Valley for a sustainable and a reliable food chain. It also shows the existing but unrecognized features of peri-urban agriculture both at local and policy-making levels. It discusses the point of interest and possible extension of the multifunctional peri-urban agriculture for local food access, inviting further

  4. Programming Sustainable Urban Nodes for Spontaneous, Intensive Urban Environments

    Science.gov (United States)

    Szubryt-Obrycka, Adriana

    2017-10-01

    functional programming (services). Then, the aspect of permanence or temporality will be addressed to determine the choice of appropriate technologies used in order to convey programmatic assertions into physical solutions. The nodes are meant to be as lightweight installments in the area as possible, but at the same time as durable and of good quality as to support positive social effects and reinforce building social capital in the area. The author believe that this emergency-based AT node scenario can be extrapolated to unbalanced housing areas being the result of urban sprawl, after being only slightly adjusted to local standards. But the main goal is to allow for efficient interventions in areas in dire needs and poor environments with limited resources or limited funds.

  5. Functional foods and urban agriculture: two responses to climate change-related food insecurity.

    Science.gov (United States)

    Dixon, Jane M; Donati, Kelly J; Pike, Lucy L; Hattersley, Libby

    2009-01-01

    Affluent diets have negative effects on the health of the population and the environment. Moreover, the ability of industrialised agricultural ecosystems to continue to supply these diets is threatened by the anticipated consequences of climate change. By challenging the ongoing supply the diets of affluent countries, climate change provides a population and environmental health opportunity. This paper contrasts two strategies for dealing with climate change-related food insecurity. Functional foods are being positioned as one response because they are considered a hyper-efficient mechanism for supplying essential micronutrients. An alternative response is civic and urban agriculture. Rather than emphasising increased economic or nutritional efficiencies, civic agriculture presents a holistic approach to food security that is more directly connected to the economic, environmental and social factors that affect diet and health.

  6. An urban food store intervention positively affects food-related psychosocial variables and food behaviors.

    Science.gov (United States)

    Gittelsohn, Joel; Song, Hee-Jung; Suratkar, Sonali; Kumar, Mohan B; Henry, Elizabeth G; Sharma, Sangita; Mattingly, Megan; Anliker, Jean A

    2010-06-01

    Obesity and other diet-related chronic diseases are more prevalent in low-income urban areas, which commonly have limited access to healthy foods. The authors implemented an intervention trial in nine food stores, including two supermarkets and seven corner stores, in a low-income, predominantly African American area of Baltimore City, with a comparison group of eight stores in another low-income area of the city. The intervention (Baltimore Healthy Stores; BHS) included an environmental component to increase stocks of more nutritious foods and provided point-of-purchase promotions including signage for healthy choices and interactive nutrition education sessions. Using pre- and postassessments, the authors evaluated the impact of the program on 84 respondents sampled from the intervention and comparison areas. Exposure to intervention materials was modest in the intervention area, and overall healthy food purchasing scores, food knowledge, and self-efficacy did not show significant improvements associated with intervention status. However, based on adjusted multivariate regression results, the BHS program had a positive impact on healthfulness of food preparation methods and showed a trend toward improved intentions to make healthy food choices. Respondents in the intervention areas were significantly more likely to report purchasing promoted foods because of the presence of a BHS shelf label. This is the first food store intervention trial in low-income urban communities to show positive impacts at the consumer level.

  7. Food, Environment, and Health | IDRC - International Development ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    The goal of the Food, Environment, and Health program is to develop evidence, innovations, and policies to ... A young mother and her baby visit the local nutrition center in rural Madagascar to participate ... Gary Kobinger working in the lab.

  8. Radioactivity in food and the environment, 1998

    International Nuclear Information System (INIS)

    1999-09-01

    The safety of food and protection of the environment continue to be important issues on the Government's agenda. Radioactivity in food and the environment, a source of potential harm, therefore receives continuous surveillance to ensure that public safety targets and international commitments are met and ensure that the environment is effectively protected. The Government makes the results of such surveillance widely available through publication of this report and through regular updates on the MAFF Web site. This technical report presents the scope and results of our radiological surveillance programmes for 1998. It is complemented in England and Wales by the Environment Agency's surveillance report on non-food pathways. Sponsored by the Joint Food Safety and Standards Group of the Ministry of Agriculture, Fisheries and Food and the Scottish Environment Protection Agency, measurements of radioactivity have been carried out in a wide range of foodstuffs and in the environment around nuclear sites and other potential sources of elevated radioactivity throughout the United Kingdom, and also at locations remote from these sources. This report demonstrates that the public is being protected against unacceptable contamination of the food chain and that the UK is fully meeting public safety targets. We remain committed to ensuring that a proper and rigorous surveillance programme is continued to ensure that this remains the case. (author)

  9. Surveying the Environmental Footprint of Urban Food Consumption

    DEFF Research Database (Denmark)

    Goldstein, Benjamin Paul; Birkved, Morten; Fernandez, John

    2017-01-01

    Assessments of urban metabolism (UM) are well situated to identify the scale, components, and direction of urban and energy flows in cities and have been instrumental in benchmarking and monitoring the key levers of urban environmental pressure, such as transport, space conditioning......, and electricity. Hitherto, urban food consumption has garnered scant attention both in UM accounting (typically lumped with “biomass”) and on the urban policy agenda, despite its relevance to local and global environmental pressures. With future growth expected in urban population and wealth, an accounting...... of the environmental footprint from urban food demand (“foodprint”) is necessary. This article reviews 43 UM assessments including 100 cities, and a total of 132 foodprints in terms of mass, carbon footprint, and ecological footprint and situates it relative to other significant environmental drivers (transport...

  10. Food security and productivity among urban farmers in Kaduna ...

    African Journals Online (AJOL)

    This study to investigated food security and productivity among urban farmers' in Kaduna State Two-stage sampling procedure was used to select 213 respondents for the study. Interview schedule was used to collect data. Data were analysed using descriptive statistics (food security index, food insecurity/ surplus gap index ...

  11. Networked Mobilities and Performative Urban Environments

    DEFF Research Database (Denmark)

    Jensen, Ole B.

    , an increasing number of such mobile practices are mediated by technologies of tangible and less tangible sorts. Thus by focusing on the complex relationship between material and virtual technologies within the sphere of mobility it is shown that we need to move beyond dichotomies of; global or local, nomad...... or sedentary, digital or material. The paper investigates the meaning of mobility and the potential in mediation and technologies to enhance the experiences and interaction in relation to urban transit spaces. In understanding the importance of mediation, global-local interactions, networks....... By studying embedded technologies and ‘ambient environments' we increase our knowledge about the over layering of the material environment with digital technologies. The presences of GPS, mediated surfaces, mobile agents (robots), RFID and other technologies that all relate to contemporary mobility practices...

  12. Wastewater infrastructure for small cities in an urbanizing world: integrating protection of human health and the environment with resource recovery and food security.

    Science.gov (United States)

    Verbyla, Matthew E; Oakley, Stewart M; Mihelcic, James R

    2013-04-16

    The majority of population growth in developing countries will occur in small cities closely linked to agricultural zones, with poor access to water and sanitation. Wastewater management priorities in these regions will be different from those in larger cities and developed countries. Two wastewater treatment systems in Bolivia, one with an upflow anaerobic sludge blanket (UASB) reactor and polishing ponds, the other with three stabilization ponds, are assessed to determine their resource recovery potential. The UASB reactor produces biogas with 500-650 MJ per day. In six months, both systems discharge wastewater with the same mass of nutrients as fertilizers used to produce crops containing 10-75 days' worth of the recommended food energy intake for each person using the system. Both systems also discharge detectable levels of helminth eggs, Giardia cysts, and Cryptosporidium oocysts, but the UASB reactor system discharges higher concentrations, implying limited reuse potential. From a regional management standpoint, small cities should not expend resources to treat wastewater to levels suitable for discharge into surface waters. Rather, they should focus on removing pathogens to reclaim water and nutrients. Biogas recovery may be a priority that should be subservient to water and nutrient recovery in these settings.

  13. Food Store Choice Among Urban Slum Women Is Associated With Consumption of Energy-Dense Food.

    Science.gov (United States)

    Anggraini, Roselynne; Februhartanty, Judhiastuty; Bardosono, Saptawati; Khusun, Helda; Worsley, Anthony

    2016-07-01

    The aim of this study was to examine the associations of food store choice with food consumption among urban slum women. A cross-sectional survey was carried out among 188 urban slum women (19-50 years old) in Jakarta, Indonesia. A semiquantitative food frequency questionnaire was used to assess food consumption. Associations between food consumption and food store choice were tested by linear regression. This study found that frequencies of buying food from small shops (warung), street food vendors, and modern food stores were significantly associated with consumption of snacks, mixed dishes, and fruit respectively. In addition, buying food from traditional markets and small cafes (warung makan) was not significantly associated with particular types of food consumption. As modern food stores are rarely utilized by these women, small shops (warung) and street food vendors are likely to be important channels to improve slum dwellers' diet. © 2016 APJPH.

  14. Environment Degradation Cause by Urbanization in Pakistan: A Review

    OpenAIRE

    Muhammad Qasim; Malik Muhammad Anees; Muhammad Usman Ghani; Jahanzaib Malik; Moeen Khalid; Aroj Bashir

    2014-01-01

    Urbanization is the physical growth of urban areas. Urbanization is serious worldwide problems. Urbanization and environmental problems are the recent developmental issues in Pakistan. The study was used Secondary data and information was collected from various publications such as books, journals, magazines, published and unpublished dissertations, newspapers, and internet as well as institutions related to urbanization and Environment.These harms are very composite and their connections are...

  15. Eating in the City: A Review of the Literature on Food Insecurity and Indigenous People Living in Urban Spaces

    Directory of Open Access Journals (Sweden)

    Kelly Skinner

    2016-03-01

    Full Text Available Indigenous people often occupy different overlapping or co-existing food environments that include market-based foods, land and water based foods, and combinations of the two. Studying these food environments is complicated by the cultural and geographic diversity of Indigenous people and the effects of colonialism, land dispossession, relocation and forced settlement on static reserves, and increasing migration to urban areas. We conducted a scoping study of food insecurity and Indigenous peoples living in urban spaces in Canada, the United States, and Australia. The 16 studies reviewed showed that food insecurity among urban Indigenous populations is an issue in all three nations. Findings highlight both the variety of experiences of urban Indigenous peoples within and across the three nations, and the commonalities of these experiences.

  16. Involving Extension in Urban Food Systems: An Example from California

    Directory of Open Access Journals (Sweden)

    Lucy Diekmann

    2017-06-01

    Full Text Available Nationwide, Extension is increasingly involved in local food system work. In cities, initiatives to improve the local food system often include urban agriculture, which has attracted the attention of diverse stakeholders for its many potential social, health, economic, and environmental impacts. This article illustrates how Extension in the San Francisco Bay Area is developing urban agriculture programming and engaging in food-system-related partnerships. It also shares lessons learned from these efforts. In this metropolitan region, Extension practice aligns well with research findings on Extension involvement in local food systems, particularly with the emphasis on providing educational opportunities and resources adapted to unique needs of city residents and working collaboratively with community and government partners to facilitate broader food system change. The results of this case study will be useful for Extension personnel in designing and implementing programs related to urban food systems.

  17. Studies on aerosol optical properties over urban and semi-urban environments of Hyderabad and Anantapur

    International Nuclear Information System (INIS)

    Lata, K.M.; Badarinath, K.V.S.; Rao, T.V. Ramakrishna; Reddy, R.R.; Ahammed, Y. Nazeer; Gopal, K. Rama; Azeem, P. Abdul

    2003-01-01

    Aerosols in the troposphere exert an important influence on global climate and the environment through scattering, transmission and absorption of radiation as well as acting as nuclei for cloud formation. Atmospheric aerosol particles influence the earth's radiation balance directly by scattering of infrared energy and indirectly by modifying the properties of clouds through microphysical processes. The present study addresses visibility, radiative forcing, size distribution and attenuation of aerosols over the period from January to May, 2001 for urban and semi-urban regions of Hyderabad and Anantapur. High aerosol loading has been observed over urban environment compared to semi-urban environment. Aerosol optical depth values increased from January to April and then decreased during May over both urban and semi-urban regions. Over urban region, visibility decreased from January to April and increased during May. Similar trend has been observed over semi-urban region with relatively higher values of visibility. Radiative forcing estimated using aerosol optical depth values increased from January to April and then decreased during the month of May over urban and semi-urban areas. High visibility and low radiative forcing has been noticed over semi-urban area due to less aerosol loading. Wavelength exponent and turbidity coefficient registered high values over urban environment compared to semi-urban environment. Attenuation coefficient showed high values over urban region compared to semi-urban region. It reveals that semi-urban environment receives high solar flux than urban environment. Using 10 channel quartz crystal microbalance, measurements of total mass concentration and mass size distribution of near surface aerosols has been made over semi-urban environment and compared with size distribution derived from inversion methods based on aerosol optical depth variation with wavelength. The sensitivity of constrained linear inversions for inferring columnar

  18. Palatable food consumption in children: interplay between (food) reward motivation and the home food environment.

    Science.gov (United States)

    De Decker, Annelies; Verbeken, Sandra; Sioen, Isabelle; Van Lippevelde, Wendy; Braet, Caroline; Eiben, Gabriele; Pala, Valeria; Reisch, Lucia A; De Henauw, Stefaan

    2017-04-01

    To understand the importance of the home food environment on unhealthy food consumption in children high in reward sensitivity, this study tested the hypothesis that the home availability of unhealthy food moderates the effect of reward sensitivity on children's fast-food consumption frequency, exerted via food cue responsiveness. Children between 7.5 and 14 years (n = 174, 50.6% boys) reported on reward sensitivity and food cue responsiveness (by means of the subscale 'external eating'). Their height and weight were measured. Parents reported on their children's fast-food consumption frequency, food cue responsiveness (by means of the subscale 'food responsiveness'), and on the home availability of unhealthy foods. Two moderated mediation models were conducted, one with the parent- and one with the child-reported food cue responsiveness as mediator. Findings suggested that with a high home availability of unhealthy foods, (a) a higher fast-food consumption frequency was found in children high in reward sensitivity and (b) the relation between reward sensitivity and the fast-food consumption frequency was mediated by external eating. The findings point at the importance of the home food environment in children high in reward sensitivity. They suggest to limit the home availability of unhealthy foods. What is Known: • Reward sensitivity (RS) is positively associated with children's palatable food consumption • In adolescents, this effect is mediated by food cue responsiveness, which determines the strength of an individual's motivation to obtain food when perceiving food cues What is New: • Children high in RS may be more vulnerable to palatable food cues in their everyday food environment because of a higher food cue responsiveness • The home food environment may be an important determining factor of the palatable food consumption of these children.

  19. "Something good can grow here": chicago urban agriculture food projects.

    Science.gov (United States)

    Hatchett, Lena; Brown, Loretta; Hopkins, Joan; Larsen, Kelly; Fournier, Eliza

    2015-01-01

    Food security is a challenge facing many African-American low-income communities nationally. Community and university partners have established urban agriculture programs to improve access to high quality affordable fruits and vegetables by growing, distributing, and selling food in urban neighborhoods. While the challenge of food security is within communities of color, few studies have described these urban agriculture programs and documented their impact on the crew members who work in the programs and live in the low-income communities. More information is needed on the program impact for crew and community health promotion. Using a survey and focus group discussion from the crew and staff we describe the program and activities of four Chicago Urban Agriculture programs. We summarized the impact these programs have on crew members' perception of urban agriculture, health habits, community engagement, and community health promotion in low-income African-American neighborhoods.

  20. Global change, urban livelihoods and food security; presentation

    CSIR Research Space (South Africa)

    Murambadoro, M

    2012-02-01

    Full Text Available Food security research and policy have focused more on the rural poor where the incidence and depth of poverty is more pronounced. Urban livelihoods are based on cash income and many people in urban areas are employed in the informal sector which...

  1. The global potential of local peri-urban food production

    Science.gov (United States)

    Kriewald, Steffen; Garcia Cantu Ros, Anselmo; Sterzel, Till; Kropp, Jürgen P.

    2013-04-01

    One big challenge for the rest of the 21st century will be the massive urbanisation. It is expected that more than 7 out of 10 persons will live in a city by the year 2050. Crucial developments towards a sustainable future will therefore take place in cities. One important approach for a sustainable city development is to re-localize food production and to close urban nutrient cycles through better waste management. The re-location of food production avoids CO2 emissions from transportation of food to cities and can also generate income for inhabitants. Cities are by definition locations where fertility accumulates. As cities are often built along rivers, their soils are often fertile. Furthermore, labour force and the possibility of producing fertilizer from human fecal matter within the city promises sustainable nutrients cycles. Although urban and peri-urban agriculture can be found in many cities worldwide and already have a substantial contribution to food supply, it has not jet been comprehensibly structured by research. We combine several worldwide data sets to determine the supply of cities with regional food production, where regional is defined as a production that occurs very close to the consumption within the peri-urban area. Therefore, urban areas are not defined by administrative boundaries but by connected built-up urban areas, and peri-urban area by the surrounding area with the same size multiplied with a scaling parameter. Both together accumulate to an urban-bio-region (UBR). With regard to national food consumption, a linear program achieves the best possible yield on agricultural areas and allows the computation of the fraction of population, which can be nourished. Additionally, several climate scenarios and different dietary patterns were considered. To close the gap between single case studies and to provide a quantitative overview of the global potential of peri-urban food production we used high resolution land-use data Global Land Cover

  2. Partnering with Carryouts: Implementation of a Food Environment Intervention Targeting Youth Obesity

    Science.gov (United States)

    Perepezko, K.; Tingey, L.; Sato, P.; Rastatter, S.; Ruggiero, C.; Gittelsohn, J.

    2018-01-01

    Youth obesity is a major public health problem in the United States, especially among urban-based, minority youth. The B'More Healthy Communities for Kids (BHCK) trial worked at multiple levels of the food environment, including carryouts, to increase access to and demand for healthy, affordable foods. The objective of this article is to describe…

  3. Obesity and fast food in urban markets: a new approach using geo-referenced micro data.

    Science.gov (United States)

    Chen, Susan Elizabeth; Florax, Raymond J; Snyder, Samantha D

    2013-07-01

    This paper presents a new method of assessing the relationship between features of the built environment and obesity, particularly in urban areas. Our empirical application combines georeferenced data on the location of fast-food restaurants with data about personal health, behavioral, and neighborhood characteristics. We define a 'local food environment' for every individual utilizing buffers around a person's home address. Individual food landscapes are potentially endogenous because of spatial sorting of the population and food outlets, and the body mass index (BMI) values for individuals living close to each other are likely to be spatially correlated because of observed and unobserved individual and neighborhood effects. The potential biases associated with endogeneity and spatial correlation are handled using spatial econometric estimation techniques. Our application provides quantitative estimates of the effect of proximity to fast-food restaurants on obesity in an urban food market. We also present estimates of a policy simulation that focuses on reducing the density of fast-food restaurants in urban areas. In the simulations, we account for spatial heterogeneity in both the policy instruments and individual neighborhoods and find a small effect for the hypothesized relationships between individual BMI values and the density of fast-food restaurants. Copyright © 2012 John Wiley & Sons, Ltd.

  4. PEDESTRIAN PATHFINDING IN URBAN ENVIRONMENTS: PRELIMINARY RESULTS

    Directory of Open Access Journals (Sweden)

    G. López-Pazos

    2017-12-01

    Full Text Available With the rise of urban population, many initiatives are focused upon the smart city concept, in which mobility of citizens arises as one of the main components. Updated and detailed spatial information of outdoor environments is needed to accurate path planning for pedestrians, especially for people with reduced mobility, in which physical barriers should be considered. This work presents a methodology to use point clouds to direct path planning. The starting point is a classified point cloud in which ground elements have been previously classified as roads, sidewalks, crosswalks, curbs and stairs. The remaining points compose the obstacle class. The methodology starts by individualizing ground elements and simplifying them into representative points, which are used as nodes in the graph creation. The region of influence of obstacles is used to refine the graph. Edges of the graph are weighted according to distance between nodes and according to their accessibility for wheelchairs. As a result, we obtain a very accurate graph representing the as-built environment. The methodology has been tested in a couple of real case studies and Dijkstra algorithm was used to pathfinding. The resulting paths represent the optimal according to motor skills and safety.

  5. Pedestrian Pathfinding in Urban Environments: Preliminary Results

    Science.gov (United States)

    López-Pazos, G.; Balado, J.; Díaz-Vilariño, L.; Arias, P.; Scaioni, M.

    2017-12-01

    With the rise of urban population, many initiatives are focused upon the smart city concept, in which mobility of citizens arises as one of the main components. Updated and detailed spatial information of outdoor environments is needed to accurate path planning for pedestrians, especially for people with reduced mobility, in which physical barriers should be considered. This work presents a methodology to use point clouds to direct path planning. The starting point is a classified point cloud in which ground elements have been previously classified as roads, sidewalks, crosswalks, curbs and stairs. The remaining points compose the obstacle class. The methodology starts by individualizing ground elements and simplifying them into representative points, which are used as nodes in the graph creation. The region of influence of obstacles is used to refine the graph. Edges of the graph are weighted according to distance between nodes and according to their accessibility for wheelchairs. As a result, we obtain a very accurate graph representing the as-built environment. The methodology has been tested in a couple of real case studies and Dijkstra algorithm was used to pathfinding. The resulting paths represent the optimal according to motor skills and safety.

  6. Take off the heater: Utility effect and food environment effect in food consumption decisions

    OpenAIRE

    Lombardini-Riipinen, Chiara; Lankoski, Leena

    2010-01-01

    In this paper, we describe individual food consumption decisions as driven by a utility effect and a food environment effect. To outline the utility effect, we first develop a new theoretical model of individual food consumption. Next, we introduce the food environment effect by showing how the food environment can affect food consumption decisions and how this can skew the resulting food consumption vector. Finally, we analyse manipulations of the food environment as a potential form of poli...

  7. Wild inside: Urban wild boar select natural, not anthropogenic food resources.

    Science.gov (United States)

    Stillfried, Milena; Gras, Pierre; Busch, Matthias; Börner, Konstantin; Kramer-Schadt, Stephanie; Ortmann, Sylvia

    2017-01-01

    Most wildlife species are urban avoiders, but some became urban utilizers and dwellers successfully living in cities. Often, they are assumed to be attracted into urban areas by easily accessible and highly energetic anthropogenic food sources. We macroscopically analysed stomachs of 247 wild boar (Sus scrofa, hereafter WB) from urban areas of Berlin and from the surrounding rural areas. From the stomach contents we determined as predictors of food quality modulus of fineness (MOF,), percentage of acid insoluble ash (AIA) and macronutrients such as amount of energy and percentage of protein, fat, fibre and starch. We run linear mixed models to test: (1) differences in the proportion of landscape variables, (2) differences of nutrients consumed in urban vs. rural WB and (3) the impact of landscape variables on gathered nutrients. We found only few cases of anthropogenic food in the qualitative macroscopic analysis. We categorized the WB into five stomach content categories but found no significant difference in the frequency of those categories between urban and rural WB. The amount of energy was higher in stomachs of urban WB than in rural WB. The analysis of landscape variables revealed that the energy of urban WB increased with increasing percentage of sealing, while an increased human density resulted in poor food quality for urban and rural WB. Although the percentage of protein decreased in areas with a high percentage of coniferous forests, the food quality increased. High percentage of grassland decreased the percentage of consumed fat and starch and increased the percentage of fibre, while a high percentage of agricultural areas increased the percentage of consumed starch. Anthropogenic food such as garbage might serve as fallback food when access to natural resources is limited. We infer that urban WB forage abundant, natural resources in urban areas. Urban WB might use anthropogenic resources (e.g. garbage) if those are easier to exploit and more abundant

  8. analysis of differences in rural-urban households food expenditure ...

    African Journals Online (AJOL)

    Kwara households spend more on food (74.39% in rural and 75% in urban) than their Kogi counterpart (57.41% in rural and ... food consumption is likely to change with changes in prices, ... is the neoclassical model of consumer choice. This.

  9. Household food security and HIV status in rural and urban ...

    African Journals Online (AJOL)

    Household food security and HIV status in rural and urban communities in the Free State ... SAHARA-J: Journal of Social Aspects of HIV/AIDS ... In all areas, a high percentage of HIV-infected respondents relied on a limited number of foods to ...

  10. Obesity and Fast Food in Urban Markets: A New Approach Using Geo-referenced Micro Data

    NARCIS (Netherlands)

    Chen, S.E.; Florax, R.J.G.M.; Snyder, S.D.

    2013-01-01

    This paper presents a new method of assessing the relationship between features of the built environment and obesity, particularly in urban areas. Our empirical application combines georeferenced data on the location of fast-food restaurants with data about personal health, behavioral, and

  11. Providing Sustainable Food in Urban Thailand

    NARCIS (Netherlands)

    Kantamaturapoj, K.; Oosterveer, P.J.M.; Spaargaren, G.

    2013-01-01

    Increasing demand for sustainable foods can be a driver for environmental improvements along the food-supply chain as a whole. Research in Western Europe has confirmed the importance of distribution channel s in supplying sustainable food and particularly in how they are able to combine consumer

  12. Agrochemicals: fate in food and the environment

    International Nuclear Information System (INIS)

    1982-01-01

    At the conference 47 papers were presented of which 32 were included in INIS. The papers dealt with the use of tracer techniques for monitoring the metabolism, toxicity, degradation and accumulation of pesticides and fertilizers in the agricultural environment, aquatic ecosystems, soils and food

  13. Picturing the city: young people's representations of urban environments

    NARCIS (Netherlands)

    Beneker, T.; Sanders, R.; Tani, S.; Taylor, L.

    2010-01-01

    Urban environments form the setting of everyday life for most Western young people. This article explores visual representations of cities made by young people in a range of environments within four countries. The findings inform a larger study on urban geographies within geography education. We

  14. Using Social Media to Identify Sources of Healthy Food in Urban Neighborhoods.

    Science.gov (United States)

    Gomez-Lopez, Iris N; Clarke, Philippa; Hill, Alex B; Romero, Daniel M; Goodspeed, Robert; Berrocal, Veronica J; Vinod Vydiswaran, V G; Veinot, Tiffany C

    2017-06-01

    An established body of research has used secondary data sources (such as proprietary business databases) to demonstrate the importance of the neighborhood food environment for multiple health outcomes. However, documenting food availability using secondary sources in low-income urban neighborhoods can be particularly challenging since small businesses play a crucial role in food availability. These small businesses are typically underrepresented in national databases, which rely on secondary sources to develop data for marketing purposes. Using social media and other crowdsourced data to account for these smaller businesses holds promise, but the quality of these data remains unknown. This paper compares the quality of full-line grocery store information from Yelp, a crowdsourced content service, to a "ground truth" data set (Detroit Food Map) and a commercially-available dataset (Reference USA) for the greater Detroit area. Results suggest that Yelp is more accurate than Reference USA in identifying healthy food stores in urban areas. Researchers investigating the relationship between the nutrition environment and health may consider Yelp as a reliable and valid source for identifying sources of healthy food in urban environments.

  15. Changing the food environment: the French experience.

    Science.gov (United States)

    Chauliac, Michel; Hercberg, Serge

    2012-07-01

    The French National Nutrition and Health Program was launched in 2001. To achieve its objectives, 2 main preventive strategies were identified: 1) provide information and education to help individuals make healthy food and physical activity choices; and 2) improve the food and physical environment so that making healthy choices is easier. School regulations have been established to improve the nutritional quality of meals served to children and adolescents, and vending machines have been banned. Since 2007, companies in France's food industry have had the option of signing the national government's "Charte d'engagement volontaire de progrès nutritionnel" (charter of commitments to nutritional improvements) which aims to benefit all consumers. A standard reference document, developed by public authorities as the basis for decisions made by a committee of experts in the food industry, aims to validate the voluntary commitments made by companies to improve the nutrient content of the foods they produce. There is strict follow-up. A Food Quality Observatory was created in 2009 to monitor the nutrient quality of the food supply in France. Various results show the positive impact of these actions.

  16. Gardening in the desert: a spatial optimization approach to locating gardens in rapidly expanding urban environments.

    Science.gov (United States)

    Mack, Elizabeth A; Tong, Daoqin; Credit, Kevin

    2017-10-16

    Food access is a global issue, and for this reason, a wealth of studies are dedicated to understanding the location of food deserts and the benefits of urban gardens. However, few studies have linked these two strands of research together to analyze whether urban gardening activity may be a step forward in addressing issues of access for food desert residents. The Phoenix, Arizona metropolitan area is used as a case to demonstrate the utility of spatial optimization models for siting urban gardens near food deserts and on vacant land. The locations of urban gardens are derived from a list obtained from the Maricopa County Cooperative Extension office at the University of Arizona which were geo located and aggregated to Census tracts. Census tracts were then assigned to one of three categories: tracts that contain a garden, tracts that are immediately adjacent to a tract with a garden, and all other non-garden/non-adjacent census tracts. Analysis of variance is first used to ascertain whether there are statistical differences in the demographic, socio-economic, and land use profiles of these three categories of tracts. A maximal covering spatial optimization model is then used to identify potential locations for future gardening activities. A constraint of these models is that gardens be located on vacant land, which is a growing problem in rapidly urbanizing environments worldwide. The spatial analysis of garden locations reveals that they are centrally located in tracts with good food access. Thus, the current distribution of gardens does not provide an alternative food source to occupants of food deserts. The maximal covering spatial optimization model reveals that gardens could be sited in alternative locations to better serve food desert residents. In fact, 53 gardens may be located to cover 96.4% of all food deserts. This is an improvement over the current distribution of gardens where 68 active garden sites provide coverage to a scant 8.4% of food desert

  17. The shelf space and strategic placement of healthy and discretionary foods in urban, urban-fringe and rural/non-metropolitan Australian supermarkets.

    Science.gov (United States)

    Cameron, Adrian J

    2018-02-01

    Supermarkets are a key influence on eating behaviours, but it is unknown if the promotion of food within stores varies on a geographic gradient from urban, to urban-fringe and non-metropolitan areas. The present study aimed to assess the shelf space and strategic placement of healthy and discretionary foods in each of urban, urban-fringe and non-metropolitan Australian supermarkets. Design/Setting In-store audits were conducted in stores from one of the two major Australian supermarket chains in urban (n 19), urban-fringe (n 20) and non-metropolitan (n 26) areas of Victoria. These audits examined selected food items (crisps/chips, chocolate, confectionery, soft drinks/sodas, fruits and vegetables) and measured the shelf space and the proportion of end-of-aisle and cash register displays containing these products. Store size was measured as the sum of aisle length. Differences in the supermarket food environment with respect to location were assessed, before and after adjustment for neighbourhood socio-economic position. The strategic placement of discretionary foods was commonly observed in all supermarkets. Adjusting for store size (larger in urban-fringe and rural areas), urban stores had greater shelf space devoted to fruits and vegetables, and less checkouts with soft drinks, than urban-fringe and rural/non-metropolitan areas. Differences remained following adjustment for neighbourhood socio-economic position. No clear pattern was observed for end-of-aisle displays, or the placement of chocolate and confectionery at checkouts. The shelf space of healthy and discretionary foods in urban-fringe and rural stores parallels the prevalence of overweight and obesity in these areas. Interventions in urban-fringe and rural stores targeting the shelf space of healthy foods and the placement of soft drinks at key displays may be useful obesity prevention initiatives.

  18. Large urban fire environment: trends and model city predictions

    International Nuclear Information System (INIS)

    Larson, D.A.; Small, R.D.

    1983-01-01

    The urban fire environment that would result from a megaton-yield nuclear weapon burst is considered. The dependence of temperatures and velocities on fire size, burning intensity, turbulence, and radiation is explored, and specific calculations for three model urban areas are presented. In all cases, high velocity fire winds are predicted. The model-city results show the influence of building density and urban sprawl on the fire environment. Additional calculations consider large-area fires with the burning intensity reduced in a blast-damaged urban center

  19. Sustainability and Resilience in the Urban Environment

    Science.gov (United States)

    Urban systems are formed by a diversity of actors and activities, and consist of complex interactions involving financial, information, energy, ecological, and material stocks and flows that operate on different spatial and temporal scales. The urban systems that emerge from thes...

  20. Understanding the Situation in the Urban Environment

    Science.gov (United States)

    2001-05-15

    discuss the cognitive aspect of enabling the urban decision maker to make optimal decisions. The manual updated many aspects of FM 90-10 in a...targets needed physical remedies for the urban fight, the program addresses little of the cognitive aspect of the soldier. The few situational

  1. Household capacities, vulnerabilities and food insecurity: Shifts in food insecurity in urban and rural Ethiopia during the 2008 food crisis

    Science.gov (United States)

    Hadley, Craig; Linzer, Drew A.; Belachew, Tefera; Mariam, Abebe Gebre; Tessema, Fasil; Lindstrom, David

    2014-01-01

    The global food crisis of 2008 led to renewed interest in global food insecurity and how macro-level food prices impact household and individual level wellbeing. There is debate over the extent to which food price increases in 2008 eroded food security, the extent to which this effect was distributed across rural and urban locales, and the extent to which rural farmers might have benefited. Ethiopia’s food prices increased particularly dramatically between 2005 and 2008 and here we ask whether there was a concomitant increase in household food insecurity, whether this decline was distributed equally across rural, urban, and semi-urban locales, and to what extent pre-crisis household capacities and vulnerabilities impacted 2008 household food insecurity levels. Data are drawn from a random sample of 2610 households in Southwest Ethiopia surveyed 2005/6 and again in mid to late 2008. Results show broad deterioration of household food insecurity relative to baseline but declines were most pronounced in the rural areas. Wealthier households and those that were relatively more food secure in 2005/6 tended to be more food secure in 2008, net of other factors, and these effects were most pronounced in urban areas. External shocks, such as a job loss or loss of crops, experienced by households were also associated with worse food insecurity in 2008 but few other household variables were associated with 2008 food insecurity. Our results also showed that rural farmers tended to produce small amounts for sale on markets, and thus were not able to enjoy the potential benefits that come from greater crop prices. We conclude that poverty, and not urban/rural difference, is the important variable for understanding the risk of food insecurity during a food crisis and that many rural farmers are too poor to take advantage of rapid rises in food prices. PMID:21996022

  2. Household capacities, vulnerabilities and food insecurity: shifts in food insecurity in urban and rural Ethiopia during the 2008 food crisis.

    Science.gov (United States)

    Hadley, Craig; Linzer, Drew A; Belachew, Tefera; Mariam, Abebe Gebre; Tessema, Fasil; Lindstrom, David

    2011-11-01

    The global food crisis of 2008 led to renewed interest in global food insecurity and how macro-level food prices impact household and individual level wellbeing. There is debate over the extent to which food price increases in 2008 eroded food security, the extent to which this effect was distributed across rural and urban locales, and the extent to which rural farmers might have benefited. Ethiopia's food prices increased particularly dramatically between 2005 and 2008 and here we ask whether there was a concomitant increase in household food insecurity, whether this decline was distributed equally across rural, urban, and semi-urban locales, and to what extent pre-crisis household capacities and vulnerabilities impacted 2008 household food insecurity levels. Data are drawn from a random sample of 2610 households in Southwest Ethiopia surveyed 2005/6 and again in mid to late 2008. Results show broad deterioration of household food insecurity relative to baseline but declines were most pronounced in the rural areas. Wealthier households and those that were relatively more food secure in 2005/6 tended to be more food secure in 2008, net of other factors, and these effects were most pronounced in urban areas. External shocks, such as a job loss or loss of crops, experienced by households were also associated with worse food insecurity in 2008 but few other household variables were associated with 2008 food insecurity. Our results also showed that rural farmers tended to produce small amounts for sale on markets, and thus were not able to enjoy the potential benefits that come from greater crop prices. We conclude that poverty, and not urban/rural difference, is the important variable for understanding the risk of food insecurity during a food crisis and that many rural farmers are too poor to take advantage of rapid rises in food prices. Copyright © 2011 Elsevier Ltd. All rights reserved.

  3. Urban Dynamics: Analyzing Land Use Change in Urban Environments

    Science.gov (United States)

    Acevedo, William; Richards, Lora R.; Buchanan, Janis T.; Wegener, Whitney R.

    2000-01-01

    In FY99, the Earth Resource Observation System (EROS) staff at Ames continued managing the U.S. Geological Survey's (USGS) Urban Dynamics Research program, which has mapping and analysis activities at five USGS mapping centers. Historic land use reconstruction work continued while activities in geographic analysis and modeling were expanded. Retrospective geographic information system (GIS) development - the spatial reconstruction of a region's urban land-use history - focused on the Detroit River Corridor, California's Central Valley, and the city of Sioux Falls, South Dakota.

  4. Food Environment and Weight Outcomes: A Stochastic Frontier Approach

    OpenAIRE

    Li, Xun; Lopez, Rigoberto A.

    2013-01-01

    Food environment includes the presence of supermarkets, restaurants, warehouse clubs and supercenters, and other food outlets. This paper evaluates weight outcomes from a food environment using a stochastic production frontier and an equation for the determinants of efficiency, where the explanatory variables of the efficiency term include food environment indicators. Using individual consumer data and food environment data from New England counties, empirical results indicate that fruit and ...

  5. Radioactivity in food and the environment, 1996

    International Nuclear Information System (INIS)

    1997-09-01

    This report continues the series which combines the results of the radioactivity monitoring programmes previously published by MAFF in two documents: the 'Terrestrial Radioactivity Monitoring Programme (TRAMP) Report: Radioactivity in food and agricultural products in England and Wales' and the 'Aquatic Environment Monitoring Report: Radioactivity in surface and coastal waters of the British Isles' (AEMR). For the first time the report includes the results of all environmental monitoring for radioactivity carried out on behalf of the regulatory authority in Scotland. These results were previously presented in the 'Statistical Bulletin: Environmental Monitoring for Radioactivity in Scotland' (e.g. The Scottish Office, (1996). Measurements in 1996 included the analysis of samples of food and other materials from the environment and detection of beta and gamma dose rates in the environment. The results show that radionuclide concentrations and radiation dose rates were generally similar to those in 1995. However, near Sellafield, despite the general downward trend in disposals from the site during 1996, there were some increases in concentrations of technetium-99 and carbon-14 in marine foodstuffs reflecting disposals from and operations on the site in previous years. These operations included processing of stored wastes and the operation of the Enhanced Actinide Removal Plant (EARP). The Thermal Oxide Reprocessing Plant (THORP) continued its commissioning phase in 1996 and its disposals had little effect on food and the marine environment. The results of the monitoring have been interpreted in terms of public radiation exposures using data on activity levels in food and local surveys to establish potential 'critical groups' of people likely to be most exposed. (author)

  6. Examining the interaction between food outlets and outdoor food advertisements with primary school food environments.

    Science.gov (United States)

    Walton, Mat; Pearce, Jamie; Day, Peter

    2009-09-01

    Schools are commonly seen as a site of intervention to improve children's nutrition, and prevent excess weight gain. Schools may have limited influence over children's diets; however, with home and community environments also exerting an influence within schools. This study considered the environment of food outlets and outdoor food advertisements surrounding four case study primary schools in New Zealand, and the impact of that external environment on within-school food environments. The shortest travel route between school and home addresses, and the number of food outlets and advertisements passed on that route, was calculated for each student. Interviews with school management were conducted. The schools with a higher percentage of students passing food outlets and advertisements considered that their presence impacted on efforts within schools to improve the food environment. Limiting students' exposure to food outlets and outdoor food adverts through travel route planning, reducing advertising, or limiting the location of food outlets surrounding schools could be explored as intervention options to support schools in promoting nutrition.

  7. Prevalent vegetation growth enhancement in urban environment

    OpenAIRE

    Zhao, Shuqing; Liu, Shuguang; Zhou, Decheng

    2016-01-01

    Cities experiencing elevated temperature (i.e., urban “heat island” warming), CO2, and nitrogen deposition decades ahead of the projected average global change are regarded as the “harbingers” of the future global change. It is for this reason that cities have been regarded as ideal natural laboratories for global change studies and particularly valuable to elucidate the potential responses of other nonurban ecosystems to future climate and environmental changes. However, the impacts of urban...

  8. Quantification of groundwater recharge in urban environments.

    Science.gov (United States)

    Tubau, Isabel; Vázquez-Suñé, Enric; Carrera, Jesús; Valhondo, Cristina; Criollo, Rotman

    2017-08-15

    Groundwater management in urban areas requires a detailed knowledge of the hydrogeological system as well as the adequate tools for predicting the amount of groundwater and water quality evolution. In that context, a key difference between urban and natural areas lies in recharge evaluation. A large number of studies have been published since the 1990s that evaluate recharge in urban areas, with no specific methodology. Most of these methods show that there are generally higher rates of recharge in urban settings than in natural settings. Methods such as mixing ratios or groundwater modeling can be used to better estimate the relative importance of different sources of recharge and may prove to be a good tool for total recharge evaluation. However, accurate evaluation of this input is difficult. The objective is to present a methodology to help overcome those difficulties, and which will allow us to quantify the variability in space and time of the recharge into aquifers in urban areas. Recharge calculations have been initially performed by defining and applying some analytical equations, and validation has been assessed based on groundwater flow and solute transport modeling. This methodology is applicable to complex systems by considering temporal variability of all water sources. This allows managers of urban groundwater to evaluate the relative contribution of different recharge sources at a city scale by considering quantity and quality factors. The methodology is applied to the assessment of recharge sources in the Barcelona city aquifers. Copyright © 2017 Elsevier B.V. All rights reserved.

  9. Contribution of household environment factors to urban Childhood ...

    African Journals Online (AJOL)

    Contribution of household environment factors to urban Childhood mortality in Mozambique. ... Conclusion: Type of toilet facility and source of drinking water play an important role in the risk of childhood mortality in urban areas of Mozambique and the relationship seems to be mediated partly by demographic and ...

  10. Reading Urban Environment by Photo: A Critical Tool for Socio ...

    African Journals Online (AJOL)

    Reading Urban Environment by Photo: A Critical Tool for Socio-Cultural Analyzing. ... Science, Technology and Arts Research Journal ... In the last decades usage of photos in landscape and urban design grow noticeably; yet applying it in architectural research or education for discovering social determinations needs more ...

  11. An Ecohydrologic Model for a Shallow Groundwater Urban Environment

    Science.gov (United States)

    The urban environment is a patchwork of natural and artificial surfaces that results in complex interactions with and impacts to natural hydrologic cycles. Evapotranspiration (ET) is a major hydrologic flow that is often altered from urbanization, though the mechanisms of change ...

  12. Efficient Assessment of the Environment for Integral Urban Water Management

    Science.gov (United States)

    Rost, Grit; Londong, Jörg

    2015-04-01

    Introduction: Sustainable water supply and sanitation is fundamental, especially in countries that are also particularly vulnerable to water-related problems. The Integrated Water Resources Management (IWRM) approach makes sure that water management is organised in a transdisciplinary way taking into account the river basin, the hydrologic system and the appendant organisation like culture, law and economics. The main objective of IWRM is the sustainable organisation of water resources quality and quantity (GWP and INBO 2009). However there are more important targets in sustainable use of water resources. New sanitation systems are focussing on adding value and maintaining essential resources in circular flow. Focussing on material fluxes can contribute on water quality, food security, sustainable use of renewable energy, adaption on water scarcity and also on rising water and sanitation demand because of rapid urban and suburban growth (Price and Vojinović 2011; Rost et al 2013; Stäudel et al 2014). Problem: There are several planning tools for IWRM as well as for urban water management. But to complete the IWRM approach for the resource oriented concept a systematic assessment tool is missing. The assessment of crucial indicators obviously requires a lot of data from different subjects/disciplines, in different scales of detail and in different accuracy and in data acquisition (Karthe et al 2014). On the one hand there will be data abundance and on the other hand the data can be unavailable or unfeasible for example because of scale and specification(Rost et al 2013). Such a complex integrated concept requires a clearly worked out structure for the way of managing and priority setting. Purpose: To get systematic in the complex planning process the toolbox model is going to develop. The assessment of the environmental screening (one part of the toolbox) is going to be presented in this paper. The first step of assessment leans on the assertion that each of the

  13. Johns Hopkins Center for Childhood Asthma in the Urban Environment

    Data.gov (United States)

    Federal Laboratory Consortium — The long term goals of the Center for Childhood Asthma in the Urban Environment are to examine how exposures to environmental pollutants and allergens may relate to...

  14. Design as a way to develop a relevant urban environment ...

    African Journals Online (AJOL)

    Design as a way to develop a relevant urban environment. ... Futuristic ideas of young designers can become the first stage in solving these challenging tasks. ... the problems of a modern city: from space organization to leisure organization.

  15. Urban environment quality assessment. Management and knowledge instruments

    International Nuclear Information System (INIS)

    Lovisolo, G.A.; Marino, C.

    1998-01-01

    This report summarizes various studies for characterization and quantization of air quality in urban environment. In this work are also reported information on electromagnetic fields effects, acoustic pollution and sanitary effects [it

  16. Frequency and Polarization Diversity Jamming of Communications in Urban Environments

    National Research Council Canada - National Science Library

    Ulama, Tuncay

    2005-01-01

    The purpose of this research is to investigate how to exploit frequency and polarization techniques in reducing the effects of jamming against UAV relay communication links in an urban warfare environment...

  17. Modeling an Improvised Nuclear Device in an Urban Environment

    National Research Council Canada - National Science Library

    Viar, William

    2002-01-01

    .... This thesis had four objectives. The first objective reviewed the four blast effects: blast wave, thermal radiation, ionizing radiation, and electromagnetic pulse as they apply to low yield weapons in an urban environment...

  18. Food Desertification: Situating Choice and Class Relations within an Urban Political Economy of Declining Food Access

    Directory of Open Access Journals (Sweden)

    Melanie Bedore

    2014-05-01

    Full Text Available While food deserts create whole sets of tangible consequences for people living within them, the problem has yet to be the subject of much normative, in-depth evaluation as an urban political economy of food access. This paper provides a critical analysis of a specific food desert and its responses, drawing on a case study of the low-income, spatially segregated North End of the small city of Kingston, Ontario, Canada. The main thrust of the paper is that the food desert remains a useful yet underexplored phenomenon through which to reveal the complexities and tensions surrounding the treatment of “choice” in a classed society. Understood as an urban political economy of declining food access, the food desert phenomenon reveals capital’s complex role in the promotion or violation of dignity through the urban geographies of acquiring food for oneself, family, or household. Through the data presented here, the article also argues for a collective pause among critical scholars to radicalize, rather than reject, the role of consumer choice in a more just food system, and for further normative engagement with urban landscapes of retail consolidation.

  19. Food Cost and Nutrient Availability in Urban Indonesia: Estimates for Food Policy Analysis

    OpenAIRE

    Teklu, Tesfaye; Jensen, Helen H.

    1989-01-01

    Evaluating the effects of economic growth and the effectiveness of targeted government intervention requires identification of tarket groups and information on food and nutrient consumption patterns. A model of nutrient consumption linked to food choice behaviour is used to evaluate nutrient availability in urban Indonesia. Nutrient demand responses varied significantly across income levels

  20. Research issues: the food environment and obesity.

    Science.gov (United States)

    Mattes, Richard; Foster, Gary D

    2014-12-01

    "Research Issues: The Food Environment and Obesity" is an article series commissioned by the American Society for Nutrition and The Obesity Society in an attempt to consider the state of understanding on this topic and identify key knowledge gaps. Roberts and Karl focus on the role of energy density in the regulation of energy intake and body weight and offer recommendations for prioritizing research. Finkelstein et al examine food and beverage purchases as a function of price changes and conclude that targeted food taxes and subsidies alone are unlikely to substantially affect obesity. Pereira points out the difficulty in establishing the strength of the association between intake of sugar-sweetened beverages and weight gain and obesity. Johnson and Wardle review the effects of palatability and variety on eating behavior and weight. Livingstone and Pourshahidi examine the impact of portion size manipulations on energy intake and weight management and find that consumers generally tend to eat proportionally more as portion size increases. Kant focuses on the efficacy and effectiveness of eating frequency manipulation for body weight management and finds that such manipulation has consistently yielded null results. Finally, Gordon-Larsen identifies several limitations of the existing literature regarding neighborhood access to healthy foods. © 2014 American Society for Nutrition.

  1. The Contribution of Urban Agriculture to Food Security of Individual ...

    African Journals Online (AJOL)

    The research followed purposive sampling technique in order to select the study area. As it contains the largest number of individual formers practising urban ... to play a sign!ficant role in improving the households 'food security and income. It ...

  2. Agriculture in Urban Planning: Generating Livelihoods and Food ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    2011-11-29

    Nov 29, 2011 ... Case studies cover food production diversification for robust and ... and the complex social-ecological networks of urban agriculture. ... New initiative will match climate knowledge to developing country ... IDRC and key partners will showcase critical work on adaptation and resilience in hot spot regions.

  3. For Hunger-proof Cities: Sustainable Urban Food Systems | IDRC ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    The 20th century has witnessed a massive growth in urban populations. ... Toronto, Canada, where he directs the Centre for Studies in Food Security. ... New Dutch-Canadian funding for the Climate and Development Knowledge Network ... partners will showcase critical work on adaptation and resilience in hot spot regions.

  4. Urban Environment Development based on Universal Design Principles

    Science.gov (United States)

    Harsritanto, Bangun Ir

    2018-02-01

    Universal Design is a design which facilitated full range of human diversity. By applying Universal design principles, urban environment can be more functional and more user-friendly for everyone. This study examined five urban streets of South Korea as a country experienced on developing various urban street designs based on universal design. This study aimed to examine and compare the South Korea cases using seven principles of universal design. The research methods of this study are literature study, case study, and site observation. The results of this study are: South Korea cases are good practices, urgency of implementing the direction into local regulations; and change of urban development paradigm.

  5. The Relationship between Obesity and Urban Environment in Seoul

    Science.gov (United States)

    Kim, Jungah; Shon, Changwoo; Yi, Seonju

    2017-01-01

    Obesity is a global pandemic that brings about a myriad of health consequences. In the past, policies for combating obesity mainly focused on improving individual health and behavior, but nowadays some policies have changed and now concentrate on improving the built environment believing this can improve health through positive changes to health-related behaviors. We examined whether both individual and environmental factors were associated with body mass index in Seoul, the capital city of South Korea. Data from the 2011 and 2013 Community Health Surveys were used (n = 20,147 men and 25,300 women). We staged multilevel logistic regression models to estimate the effect of individual and environmental factors on obesity. Among individual covariates, high-risk drinking, the time spent watching TV and surfing the Internet, high salt intake, stress, and the negative recognition of health were significantly associated with obesity. When controlling individual covariates, the number of sports facilities, number of fried chicken stores, and food insecurity level were statistically associated with probability of obesity. Therefore, this study emphasizes that it is important not only to improve the health behavior of the individual, but also to improve the urban environment in order to reduce the obesity rates of city dwellers. PMID:28792465

  6. Linkages between the Urban Environment and Earth's Climate System

    Science.gov (United States)

    Shepherd, J. Marshall; Jin, Menglin

    2003-01-01

    Urbanization is one of the extreme cases of land use change. Although currently only 1.2% of the land is considered urban, the spatial coverage and density of cities are expected to rapidly increase in the near future. It is estimated that by the year 2025 60% of the world s population will live in cities (UNFP, 1999). Though urban areas are local in scale, human activity in urban environments has impacts at local, to global scale by changing atmospheric composition; impacting components of the water cycle; and modifying the carbon cycle 2nd ecosystems. For example, urban dwellers are undoubtedly familiar with "high" ozone pollution days, flash flooding in city streets, or heat stress on summer days. However, our understanding of urbanization on the total Earth-climate system is incomplete. Better understanding of how the Earth s weather, oceans, and land work together and the influence of the urban environment on this climate system is critical. This paper highlights some of the major and current issues involving interactions between urban environments and the Earth's climate system. It also captures some of the most current thinking and findings of the authors and key experts in the field.

  7. Comparing nutrition environments in bodegas and fast food restaurants

    OpenAIRE

    Neckerman, Kathryn M.; Lovasi, Laszlo; Yousefzadeh, Paulette; Sheehan, Daniel; Milinkovic, Karla; Baecker, Aileen; Bader, Michael D. M.; Weiss, Christopher; Lovasi, Gina S.; Rundle, Andrew

    2013-01-01

    Many small grocery stores or “bodegas” sell prepared or ready-to-eat items, filling a similar niche in the food environment as fast food restaurants. However, little comparative information is available about the nutrition environments of bodegas and fast food outlets. This study compared the nutrition environments of bodegas and national chain fast food restaurants using a common audit instrument, the Nutrition Environment Measures Study in Restaurants (NEMS-R) protocol. The analytic sample ...

  8. ASSESSMENT OF URBAN BUILT ENVIRONMENT QUALITY ON THE URBANIZED TERRITORIES: INTERREGIONAL COMPARISONS

    Directory of Open Access Journals (Sweden)

    Ovsiannikova T. Yu.

    2015-06-01

    Full Text Available The urbanization and growth of a cities role, formation of cities as reference points of regions economic development are modern global tendencies. Cities concentrate human and investment resources on their territory, so in large part cities cause competitiveness of the regions in the global market. For preservation of competitive advantages regions need to form on the urbanized territories not only the favorable environment for business, but also for the population life. This paper deals with the problem of an assessment of urban built environment quality, due to urban built environment is a space-material basis of life quality of the population on the urbanized territories. The role of the cities in social and economic development of regions and their considerable influence on competitiveness of territories in the global competition for economic resources are proved. The method of assessment of urban built environment quality on the basis of calculation of an integrated index is proposed. Interregional comparisons on the example of regions of the Siberian and Ural Federal districts are completed. The offered method of assessment of urban built environment quality allows to range the urbanized territories on usefulness for living, to reveal most and the least developed spheres of city infrastructure.

  9. Street Food Environment in Maputo (STOOD Map): a Cross-Sectional Study in Mozambique.

    Science.gov (United States)

    Gelormini, Marcello; Damasceno, Albertino; Lopes, Simão António; Maló, Sérgio; Chongole, Célia; Muholove, Paulino; Casal, Susana; Pinho, Olívia; Moreira, Pedro; Padrão, Patrícia; Lunet, Nuno

    2015-08-05

    Street food represents a cultural, social, and economic phenomenon that is typical of urbanized areas, directly linked with a more sedentary lifestyle and providing a very accessible and inexpensive source of nutrition. Food advertising may contribute to shaping consumers' preferences and has the potential to drive the supply of specific foods. The purpose of this study is to characterize the street food offerings available to the urban population of Maputo, the capital city of Mozambique, and the billboard food advertising in the same setting. People selling ready-to-eat foods, beverages, or snacks from venues such as carts, trucks, stands, and a variety of improvised informal setups (eg, shopping carts, trunks of cars, sides of vans, blankets on the sidewalk, etc) will be identified in the district of KaMpfumu. We will gather information about the actual food being sold through direct observation and interviews to vendors, and from the billboard advertising in the same areas. A second phase of the research entails collecting food samples to be analyzed in a specialized laboratory. The street food environment will be characterized, overall and according to socioeconomic and physical characteristics of the neighborhood, using descriptive statistics and spatial analysis. The study protocol was approved by the National Committee for Bioethics for Health in Mozambique. Data collection, including the identification of street food vending sites and billboard advertising, started on October 20, 2014, and lasted for 1 month. The collection of food samples took place in December 2014, and the bromatological analyses are expected to be concluded in August 2015. The district of KaMpfumu is the wealthiest and most urbanized in Maputo, and it is the area with the highest concentration and variety of street food vendors. The expected results may yield important information to assess the nutritional environment and the characteristics of the foods to which a great majority of

  10. URBANIZATION ALTERS FATTY ACID CONCENTRATIONS OF STREAM FOOD WEBS IN THE NARRAGANSETT BAY WATERSHED

    Science.gov (United States)

    Urbanization and associated human activities negatively affect stream algal and invertebrate assemblages, likely altering food webs. Our goal was to determine if urbanization affects food web essential fatty acids (EFAs) and if EFAs could be useful ecological indicators in monito...

  11. Determinants of Household Food Security in Urban Areas

    Directory of Open Access Journals (Sweden)

    Sarah Ayu Mutiah

    2017-03-01

    Full Text Available Food security at household level is a very important precondition to foster the national and regional food security. Many people migrate to urban areas in the hope of improving their welfare. Generally people think that in the city there are more opportunities, but the opposite is true. The problem is more complex in the city especially for people who do not have adequate skills and education. This study aims to address whether  age of household head, household size, education level of household head, income, and distribution of subsidized rice policy affect the food security of urban poor households in Purbalingga district. A hundred respondents were selected from four top villages in urban areas of Purbalingga with the highest level of poverty. Using binary logistic regression, this study finds significant positive effect of education of household head and household income and significant negative effect of household size and raskin on household food security, while age of household head has no significant effect on household food security. The results imply the need for increased awareness of family planning, education, improved skills, and increased control of the implementation of subsidized rice for the poor.

  12. Autonomous driving in urban environments: approaches, lessons and challenges.

    Science.gov (United States)

    Campbell, Mark; Egerstedt, Magnus; How, Jonathan P; Murray, Richard M

    2010-10-13

    The development of autonomous vehicles for urban driving has seen rapid progress in the past 30 years. This paper provides a summary of the current state of the art in autonomous driving in urban environments, based primarily on the experiences of the authors in the 2007 DARPA Urban Challenge (DUC). The paper briefly summarizes the approaches that different teams used in the DUC, with the goal of describing some of the challenges that the teams faced in driving in urban environments. The paper also highlights the long-term research challenges that must be overcome in order to enable autonomous driving and points to opportunities for new technologies to be applied in improving vehicle safety, exploiting intelligent road infrastructure and enabling robotic vehicles operating in human environments.

  13. From Short Food Supply Chains to Sustainable Agriculture in Urban Food Systems: Food Democracy as a Vector of Transition

    Directory of Open Access Journals (Sweden)

    Yuna Chiffoleau

    2016-10-01

    Full Text Available In industrialized nations, local food networks have generally been analyzed through alternative food systems, in spite of the fact that they are much more diverse than this would imply. In France, ‘short food chains’ are both a continuation of a long tradition and a recent trend which now extends beyond activists, to consumers and producers as well. This paper will explore the conditions under which these chains can change the practices and knowledge of ordinary actors in urban food systems, from producers to urban consumers and policy-makers, in the area of agriculture and sustainability. It will consider the case study of the creation and development of an urban open-air market which has been analyzed using intervention research with input from economic sociology. We will highlight how personal relations, which are encouraged by a participatory context, support the evolution of practices and knowledge. We will also illustrate how a system of produce labelling has emerged as a mediation resource, and has increased changes as well as participation within the re-territorialization of the urban food system. By describing a concrete expression of food democracy which is spreading in France via a free collective trademark, and by showing its role in the transition of ‘ordinary’ actors towards a more sustainable agriculture, this paper will shine new light onto local food chains as well as traditional short food chains, and will call for more research on the subject.

  14. Convenience stores surrounding urban schools: an assessment of healthy food availability, advertising, and product placement.

    Science.gov (United States)

    Gebauer, Hilary; Laska, Melissa Nelson

    2011-08-01

    Adolescent obesity is a national public health problem, particularly among urban populations. Recent evidence has linked neighborhood food environments to health and nutrition status, with easier access to convenience stores being associated with increased risk for obesity. Little is known about the availability of healthy purchasing options within small, urban food stores, or the extent to which these factors are relevant to youth. The objective of this research was to characterize various features of the food environment within small convenience stores located nearby urban junior high and high schools. In-store audits were conducted in 63 stores located within 800 m of 36 urban Minnesota public secondary schools. Results indicated that a limited number of healthier beverages (i.e., water and 100% fruit juice) and snack options (i.e., nuts and pretzels) were available at most stores (≥85%). However, a wide range of healthy snack options were typically not available, with many specific items stocked in less than half of stores (e.g., low-fat yogurt in 27% of stores and low-fat granola bars in 43%). Overall, 51% of stores had fresh fruit and 49% had fresh vegetables. Few stores carried a range of healthier snack alternatives in single-serving packages. All stores had less healthful impulse purchase items available (e.g., candy) while only 46% carried healthier impulse items (e.g., fruit). Most stores (97%) had food/beverage advertising. Overall, convenience stores located in close proximity to secondary schools represent an important and understudied component of the youth food environment.

  15. Health and the urban environment: revolutions revisited

    Energy Technology Data Exchange (ETDEWEB)

    McGranahan, Gordan

    2009-05-15

    From cholera pandemics to smog episodes, urban development driven by narrow economic interests has shown itself to be a serious threat to human health and wellbeing. Past revolutions in sanitation and pollution control demonstrate that social movements and governance reforms can transform an urban health penalty into a health advantage. But many environmental problems have been displaced over time and space, and never truly resolved. Health concerns need once again to drive an environmental agenda – but this time it must be sustainable over the long haul, and globally equitable. With the global economic crisis raising the ante, what's needed is no less than a revolution in environmental justice that puts health, not economics, at the core of its values.

  16. Utilizing Urban Environments for Effective Field Experiences

    Science.gov (United States)

    MacAvoy, S. E.; Knee, K.

    2014-12-01

    Research surveys suggest that students are demanding more applied field experiences from their undergraduate environmental science programs. For geoscience educators at liberal arts colleges without field camps, university vehicles, or even geology departments, getting students into the field is especially rewarding - and especially challenging. Here, we present strategies that we have used in courses ranging from introductory environmental science for non-majors, to upper level environmental methods and geology classes. Urban locations provide an opportunity for a different type of local "field-work" than would otherwise be available. In the upper-level undergraduate Environmental Methods class, we relied on a National Park area located a 10-minute walk from campus for most field exercises. Activities included soil analysis, measuring stream flow and water quality parameters, dendrochronology, and aquatic microbe metabolism. In the non-majors class, we make use of our urban location to contrast water quality in parks and highly channelized urban streams. Here we share detailed lesson plans and budgets for field activities that can be completed during a class period of 2.5 hours with a $75 course fee, show how these activities help students gain quantitative competency, and provide student feedback about the classes and activities.

  17. Exploring the Role of the Food Environment on Food Shopping Patterns in Philadelphia, PA, USA: A Semiquantitative Comparison of Two Matched Neighborhood Groups

    Directory of Open Access Journals (Sweden)

    Amy Hillier

    2013-01-01

    Full Text Available Increasing research has focused on the built food environment and nutrition-related outcomes, yet what constitutes a food environment and how this environment influences individual behavior still remain unclear. This study assesses whether travel mode and distance to food shopping venues differ among individuals in varying food environments and whether individual- and household-level factors are associated with food shopping patterns. Fifty neighbors who share a traditionally defined food environment (25 in an unfavorable environment and 25 in a favorable environment were surveyed using a mix of close- and open-ended survey questions. Food shopping patterns were mapped using Geographic Information Systems (GIS. Stores visited were beyond the 0.5-mile (805 meters radius traditionally used to represent the extent of an individual’s food environment in an urban area. We found no significant difference in shopping frequency or motivating factor behind store choice between the groups. No differences existed between the two groups for big food shopping trips. For small trips, individuals in the favorable food environment traveled shorter distances and were more likely to walk than drive. Socioeconomic status, including car ownership, education, and income influenced distance traveled. These findings highlight the complexities involved in the study and measurement of food environments.

  18. Exploring the role of the food environment on food shopping patterns in Philadelphia, PA, USA: a semiquantitative comparison of two matched neighborhood groups.

    Science.gov (United States)

    Hirsch, Jana A; Hillier, Amy

    2013-01-14

    Increasing research has focused on the built food environment and nutrition-related outcomes, yet what constitutes a food environment and how this environment influences individual behavior still remain unclear. This study assesses whether travel mode and distance to food shopping venues differ among individuals in varying food environments and whether individual- and household-level factors are associated with food shopping patterns. Fifty neighbors who share a traditionally defined food environment (25 in an unfavorable environment and 25 in a favorable environment) were surveyed using a mix of close- and open-ended survey questions. Food shopping patterns were mapped using Geographic Information Systems (GIS). Stores visited were beyond the 0.5-mile (805 meters) radius traditionally used to represent the extent of an individual's food environment in an urban area. We found no significant difference in shopping frequency or motivating factor behind store choice between the groups. No differences existed between the two groups for big food shopping trips. For small trips, individuals in the favorable food environment traveled shorter distances and were more likely to walk than drive. Socioeconomic status, including car ownership, education, and income influenced distance traveled. These findings highlight the complexities involved in the study and measurement of food environments.

  19. Radioactivity in food and the environment, 2002

    International Nuclear Information System (INIS)

    2003-01-01

    This report contains the results of radiological monitoring of food and the environment throughout the United Kingdom, the Channel Islands and the Isle of Man. The primary purpose of the monitoring programmes is to provide an independent check on the effects of discharges made by users of radioactive materials in the United Kingdom, and to ensure that any radioactivity present in food and the environment does not compromise public health.' For the first time, it represents a comprehensive summary of results across the United Kingdom from programmes sponsored by the Environment Agency, the Environment and Heritage Service, the Food Standards Agency and the Scottish Environment Protection Agency. The results of these monitoring programmes demonstrate that in 2002 even the most exposed members of the public received radiation doses from food and other pathways that were below the statutory United Kingdom annual dose limit to members of the public of 1 mSv (millisievert), European Union limits and Government targets. Assessed doses at all major sites in the United Kingdom are shown in Figure S and are detailed in the Summary Table. The highest radiation doses were received by a group of high-rate consumers offish and shellfish in Cumbria. The doses received by these consumers are a combination of contributions from liquid discharges from both Sellafield and from radioactivity in the environment as a result of past discharges from the Rhodia Consumer Specialties Ltd. (formerly Albright and Wilson) plant at Whitehaven. The dose to these high-rate consumers (including external doses) from Sellafield discharges was estimated to be 0.19 mSv in 2002 compared with 0.15 mSv in 2001. Concentrations in food and dose rates were largely unchanged in 2002 though there were some small increases in concentrations of tritium, carbon-14 and technetium-99 in seafood. The main reason for the increase in dose was an increase in the amount of seafood eaten. This group also received an

  20. Envisioning Urban Farming for Food Security during the Climate Change Era. Vertical Farm within Highly Urbanized Areas

    Science.gov (United States)

    Januszkiewicz, Krystyna; Jarmusz, Małgorzata

    2017-10-01

    Global climate change constitutes a serious threat to global security including food production in the following decades. This paper is focused on a new possibility and advisability of creating a systemic solution to resolve the problem of food security in highly-urbanized areas. The first part of the paper deal with historical development vertical farms ideas and defines the main environmental and spatial constrains also it indicates that vertical farms are going to be part of the future horticultural production. The second part presents results of the research program undertaken at West Pomeranian University of Technology in Szczecin by authors. The program goes on to attempt to solve the problem through architectural design. This study highlights an integrating large-scale horticultural production directly into the cities, where the most of the food consumption takes place. In conclusions emphasizes, that the design will force architects, engineers and urban planners to completely revise and redefine contemporary design process and understanding of the idea-fix of sustainable design. To successfully migrate food production from extensive rural areas to dense environment of city centres, a new holistic approach, integrating knowledge and advances of multiple fields of science, have to develop.

  1. Distributed intelligent urban environment monitoring system

    Science.gov (United States)

    Du, Jinsong; Wang, Wei; Gao, Jie; Cong, Rigang

    2018-02-01

    The current environmental pollution and destruction have developed into a world-wide major social problem that threatens human survival and development. Environmental monitoring is the prerequisite and basis of environmental governance, but overall, the current environmental monitoring system is facing a series of problems. Based on the electrochemical sensor, this paper designs a small, low-cost, easy to layout urban environmental quality monitoring terminal, and multi-terminal constitutes a distributed network. The system has been small-scale demonstration applications and has confirmed that the system is suitable for large-scale promotion

  2. Food swamps and food deserts in Baltimore City, MD, USA: associations with dietary behaviours among urban adolescent girls.

    Science.gov (United States)

    Hager, Erin R; Cockerham, Alexandra; O'Reilly, Nicole; Harrington, Donna; Harding, James; Hurley, Kristen M; Black, Maureen M

    2017-10-01

    To determine whether living in a food swamp (≥4 corner stores within 0·40 km (0·25 miles) of home) or a food desert (generally, no supermarket or access to healthy foods) is associated with consumption of snacks/desserts or fruits/vegetables, and if neighbourhood-level socio-economic status (SES) confounds relationships. Cross-sectional. Assessments included diet (Youth/Adolescent FFQ, skewed dietary variables normalized) and measured height/weight (BMI-for-age percentiles/Z-scores calculated). A geographic information system geocoded home addresses and mapped food deserts/food swamps. Associations examined using multiple linear regression (MLR) models adjusting for age and BMI-for-age Z-score. Baltimore City, MD, USA. Early adolescent girls (6th/7th grade, n 634; mean age 12·1 years; 90·7 % African American; 52·4 % overweight/obese), recruited from twenty-two urban, low-income schools. Girls' consumption of fruit, vegetables and snacks/desserts: 1·2, 1·7 and 3·4 servings/d, respectively. Girls' food environment: 10·4 % food desert only, 19·1 % food swamp only, 16·1 % both food desert/swamp and 54·4 % neither food desert/swamp. Average median neighbourhood-level household income: $US 35 298. In MLR models, girls living in both food deserts/swamps consumed additional servings of snacks/desserts v. girls living in neither (β=0·13, P=0·029; 3·8 v. 3·2 servings/d). Specifically, girls living in food swamps consumed more snacks/desserts than girls who did not (β=0·16, P=0·003; 3·7 v. 3·1 servings/d), with no confounding effect of neighbourhood-level SES. No associations were identified with food deserts or consumption of fruits/vegetables. Early adolescent girls living in food swamps consumed more snacks/desserts than girls not living in food swamps. Dietary interventions should consider the built environment/food access when addressing adolescent dietary behaviours.

  3. Asian Urban Environment and Climate Change: Preface.

    Science.gov (United States)

    Hunt, Julian; Wu, Jianping

    2017-09-01

    The Asian Network on Climate Science and Technology (www.ancst.org), in collaboration with Tsinghua University, held a conference on environmental and climate science, air pollution, urban planning and transportation in July 2015, with over 40 Asian experts participating and presentation. This was followed by a meeting with local government and community experts on the practical conclusions of the conference. Of the papers presented at the conference a selection are included in this special issue of Journal of Environmental Science, which also reflects the conclusions of the Paris Climate meeting in Dec 2015, when the major nations of the world agreed about the compelling need to reduce the upward trend of adverse impacts associated with global climate change. Now is the time for urban areas to work out the serious consequences for their populations, but also how they should work together to take action to reduce global warming to benefit their own communities and also the whole planet! Copyright © 2017. Published by Elsevier B.V.

  4. Income Driven Patterns of the Urban Environment

    Directory of Open Access Journals (Sweden)

    Anibal Gusso

    2017-02-01

    Full Text Available This study investigates the land surface temperature (LST distribution from thermal infrared data for analyzing the characteristics of surface coverage using the Vegetation–Impervious–Soil (VIS approach. A set of ten images, obtained from Landsat-5 Thematic Mapper, between 2001 and 2010, were used to study the urban environmental conditions of 47 neighborhoods of Porto Alegre city, Brazil. Porto Alegre has had the smallest population growth rate of all 27 state capitals in the last two decades in Brazil, with an increase of 11.55% in inhabitants from 1.263 million in 1991 to 1.409 million in 2010. We applied the environmental Kuznets curve (EKC theory in order to test the influence of the economically-related scenario on the spatial nature of social-environmental arrangement of the city at neighborhood scale. Our results suggest that the economically-related scenario exerts a non-negligible influence on the physically driven characteristics of the urban environmental conditions as predicted by EKC theory. The linear inverse correlation R2 between household income (HI and LST is 0.36 and has shown to be comparable to all other studied variables. Future research may investigate the relation between other economically-related indicators to specific land surface characteristics.

  5. Food systems: New-Ruralism versus New-Urbanism.

    Science.gov (United States)

    Azadi, Hossein; Van Acker, Veronique; Zarafshani, Kiumars; Witlox, Frank

    2012-08-30

    There is a growing debate on whether agricultural land in urban fringes should be maintained or converted to other uses. While 'pro-ruralists' believe agricultural land conversion can threaten food security and cause rural-urban migration, 'pro-urbanists' find it a necessary change for transition from a primitive agricultural-based community to an advanced industrial-based society which has the capacity to create mass productions. New-Ruralists follow an agricultural-based development approach that promotes small-medium farming and acknowledges rural lifestyle while New-Urbanists give a priority to large industrial-based sectors and encourage urban lifestyle. Given the unlike concerns of different societies, the paper concludes that the approaches might have different priorities in the less developed, developing, and developed world. Copyright © 2012 Society of Chemical Industry.

  6. Regional Differences in Food Consumption in Urban Mozambique

    DEFF Research Database (Denmark)

    Barslund, Mikkel Christoffer

    A nationwide household survey for Mozambique is used to estimate a large censored food demand system with 12 food groups for the sample of urban households. Using the translog indirect utility approach, the censored nature of the data is addressed by estimating a system of Tobit equations...... with a recently suggested quasi maximum likelihood estimator. Augmenting the system with demographic and geographical variables in a theoretically consistent way, I find that differences in elasticities between regions are significant. The results show that regional variation has to be taken into account when...

  7. Food culture in the home environment

    DEFF Research Database (Denmark)

    B. F. De Wit, John; Stok, Marijn; Smolenski, Derek J.

    2015-01-01

    BACKGROUND: Overweight epidemics, including among children and adolescents, are fuelled by contemporary obesogenic environments. Recent research and theory highlight the importance of socio-cultural factors in mitigating adverse impacts of the abundance of food in high-income countries. The current...... study examines whether family meal culture shapes young people's eating behaviors and self-regulation. METHODS: Young people aged 10-17 years were recruited through schools in four European countries: the Netherlands, Poland, Portugal and the United Kingdom. A total of 2,764 participants (mean age 13...... associated with young people's eating behaviors, as was self-regulation. Significant indirect effects of family meal culture were also found, through self-regulation. CONCLUSIONS: Results confirm that family meal culture, encompassing values as well as practices, shapes young people's eating behaviors...

  8. Raising Awareness of Urban Environment Development in Primary Schools

    Directory of Open Access Journals (Sweden)

    Rosi Maja

    2016-12-01

    Full Text Available In the past few years, excessive efforts have been made to increase the city’s attractiveness and its international positioning. Also studies on the so-called city destination branding are on the rise. Theorists, as Ramirez (2001, Marzano and Scott (2009, among many others, are discussing different aspects of this complex process. Many approaches and strategies are dealing with the positioning of urban environments and city destinations, trying to provide at least some partial answers about achieving this objective. With proper marketing and branding, cities can do a lot to attract tourists and visitors. For successful city marketing and branding and for the successful long-term positioning of the destination in general, it is necessary to involve the key stakeholders and collaborate with as many as possible despite the fact that the branding of a city destination (or any destination for that matter is a complex process. It is significant that all the stakeholders, who are always carriers of different interests, are invited to collaborate in the planning of the tourism development and tourism development strategies, from the government, the private sector, schools etc. It is also important to involve the citizens, who can provide a valuable opinion about the environment they live in – what they like about their environment, what suggestion would they give to tourists about gastronomy, attractions, shops, events, etc. It is significant that citizens are proud of their urban environment, that they know their own environment, and that they have the motivation for the involvement in the process of improvement of their home environment (through projects, discussions, etc.. It is impossible to create attractive urban environments or cities if residents do not have a positive opinion about the place they live in. That is why it is essential for the education institutions at all levels, but especially for the institutions at the primary levels to

  9. Air ion concentrations in various urban outdoor environments

    Science.gov (United States)

    Ling, Xuan; Jayaratne, Rohan; Morawska, Lidia

    2010-06-01

    Atmospheric ions are produced by many natural and anthropogenic sources and their concentrations vary widely between different environments. There is very little information on their concentrations in different types of urban environments, how they compare across these environments and their dominant sources. In this study, we measured airborne concentrations of small ions, particles and net particle charge at 32 different outdoor sites in and around a major city in Australia and identified the main ion sources. Sites were classified into seven groups as follows: park, woodland, city centre, residential, freeway, power lines and power substation. Generally, parks were situated away from ion sources and represented the urban background value of about 270 ions cm -3. Median concentrations at all other groups were significantly higher than in the parks. We show that motor vehicles and power transmission systems are two major ion sources in urban areas. Power lines and substations constituted strong unipolar sources, while motor vehicle exhaust constituted strong bipolar sources. The small ion concentration in urban residential areas was about 960 cm -3. At sites where ion sources were co-located with particle sources, ion concentrations were inhibited due to the ion-particle attachment process. These results improved our understanding on air ion distribution and its interaction with particles in the urban outdoor environment.

  10. A model for radiological dose assessment in an urban environment

    International Nuclear Information System (INIS)

    Hwang, Won Tae; Kim, Eun Han; Jeong, Hyo Joon; Suh, Kyung Suk; Han, Moon Hee

    2007-01-01

    A model for radiological dose assessment in an urban environment, METRO-K has been developed. Characteristics of the model are as follows ; 1) mathematical structures are simple (i.e. simplified input parameters) and easy to understand due to get the results by analytical methods using experimental and empirical data, 2) complex urban environment can easily be made up using only 5 types of basic surfaces, 3) various remediation measures can be applied to different surfaces by evaluating the exposure doses contributing from each contamination surface. Exposure doses contributing from each contamination surface at a particular location of a receptor were evaluated using the data library of kerma values as a function of gamma energy and contamination surface. A kerma data library was prepared for 7 representative types of Korean urban building by extending those data given for 4 representative types of European urban buildings. Initial input data are daily radionuclide concentration in air and precipitation, and fraction of chemical type. Final outputs are absorbed dose rate in air contributing from the basic surfaces as a function of time following a radionuclide deposition, and exposure dose rate contributing from various surfaces constituting the urban environment at a particular location of a receptor. As the result of a contaminative scenario for an apartment built-up area, exposure dose rates show a distinct difference for surrounding environment as well as locations of a receptor

  11. Changes in a middle school food environment affect food behavior and food choices.

    Science.gov (United States)

    Wordell, Doug; Daratha, Kenn; Mandal, Bidisha; Bindler, Ruth; Butkus, Sue Nicholson

    2012-01-01

    Increasing rates of obesity among children ages 12 to 19 years have led to recommendations to alter the school food environment. The purpose of this study was to determine whether there are associations between an altered school food environment and food choices of middle school students both in and outside of school. In a midsized western city, two of six middle schools allowed only bottled water in vending machines, only milk and fruit on à la carte menus, and offered a seasonal fruit and vegetable bar. Three years after the intervention was initiated, seventh- and eighth-grade students attending the two intervention schools and four control middle schools were surveyed about their food choices. A total of 2,292 surveys were completed. Self-reported frequency of consumption for nine food groups in the survey was low; consumption was higher outside than in school. Boys consumed more milk than girls although girls consumed more fruits and vegetables. Significant socioeconomic differences existed. Compared with students who paid the full lunch fee, students qualifying for free and reduced-price meals consumed more milk and juice in schools but less outside school; more candy and energy drinks in school; and more sweet drinks, candy, pastries, and energy drinks outside school. Students in intervention schools were 24% more likely to consume milk outside school, 27% less likely to consume juice in school, and 56% less likely to consume sweet pastries in school. There were no differences in fruit and vegetable consumption reported by children in control and intervention schools. Overall, there was a positive association between a modified school food environment and student food behavior in and outside school. Policies related to the school food environment are an important strategy to address the obesity epidemic in our country. Copyright © 2012 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.

  12. Food label reading and understanding in parts of rural and urban ...

    African Journals Online (AJOL)

    Food label reading and understanding in parts of rural and urban Zimbabwe. ... The reading and understanding of nutrition information on food packages has been shown to improve food choices and instill ... AJOL African Journals Online.

  13. Access to food outlets and children's nutritional intake in urban China: a difference-in-difference analysis.

    Science.gov (United States)

    Wang, Rui; Shi, Lu

    2012-06-30

    In recent years supermarkets and fast food restaurants have been replacing those "wet markets" of independent vendors as the major food sources in urban China. Yet how these food outlets relate to children's nutritional intake remains largely unexplored. Using a longitudinal survey of households and communities in China, this study examines the effect of the urban built food environment (density of wet markets, density of supermarkets, and density of fast food restaurants) on children's nutritional intake (daily caloric intake, daily carbohydrate intake, daily protein intake, and daily fat intake). Children aged 6-18 (n = 185) living in cities were followed from 2004 to 2006, and difference-in-difference models are used to address the potential issue of omitted variable bias. Results suggest that the density of wet markets, rather than that of supermarkets, positively predicts children's four dimensions of nutritional intake. In the caloric intake model and the fat intake model, the positive effect of neighborhood wet market density on children's nutritional intake is stronger with children from households of lower income. With their cheaper prices and/or fresher food supply, wet markets are likely to contribute a substantial amount of nutritional intake for children living nearby, especially those in households with lower socioeconomic status. For health officials and urban planners, this study signals a sign of warning as wet markets are disappearing from urban China's food environment.

  14. Access to food outlets and children's nutritional intake in urban China: a difference-in-difference analysis

    Directory of Open Access Journals (Sweden)

    Wang Rui

    2012-06-01

    Full Text Available Abstract Background In recent years supermarkets and fast food restaurants have been replacing those “wet markets” of independent vendors as the major food sources in urban China. Yet how these food outlets relate to children’s nutritional intake remains largely unexplored. Method Using a longitudinal survey of households and communities in China, this study examines the effect of the urban built food environment (density of wet markets, density of supermarkets, and density of fast food restaurants on children’s nutritional intake (daily caloric intake, daily carbohydrate intake, daily protein intake, and daily fat intake. Children aged 6–18 (n = 185 living in cities were followed from 2004 to 2006, and difference-in-difference models are used to address the potential issue of omitted variable bias. Results Results suggest that the density of wet markets, rather than that of supermarkets, positively predicts children’s four dimensions of nutritional intake. In the caloric intake model and the fat intake model, the positive effect of neighborhood wet market density on children’s nutritional intake is stronger with children from households of lower income. Conclusion With their cheaper prices and/or fresher food supply, wet markets are likely to contribute a substantial amount of nutritional intake for children living nearby, especially those in households with lower socioeconomic status. For health officials and urban planners, this study signals a sign of warning as wet markets are disappearing from urban China’s food environment.

  15. Art, Media, and Sense-making in Responsive Urban Environments

    DEFF Research Database (Denmark)

    Allingham, Peter

    2013-01-01

    The aim of the article is to elucidate experience and sense-making in interactive, responsive urban environments through analysis of aesthetic and media aspects of art in such environments. As an analytic example the sculpture D-Tower from the Dutch town of Doetinchem has been chosen. The sculptu...... in order to make hitherto invisible and private emotions and feelings visible and public.......The aim of the article is to elucidate experience and sense-making in interactive, responsive urban environments through analysis of aesthetic and media aspects of art in such environments. As an analytic example the sculpture D-Tower from the Dutch town of Doetinchem has been chosen. The sculpture...... artistic and interactive, responsive media qualities are blended, new forms of experience and sense-making are promoted. It may happen due to emergence and adaptation that may transform both the ‘experiencee’ and also the experiential environment. In this case information technology has been applied...

  16. Transport of radionuclides in urban environs: working draft assessment

    International Nuclear Information System (INIS)

    DuCharme, A.R.; Akins, R.E.; Daniel, S.L.; Ericson, D.M. Jr.; Finley, B.H.; Kaestner, P.C.; Sheldon, D.D.; Taylor, J.M.; Tierney, M.S.; Finley, N.N.

    1978-05-01

    Purpose of this study is to assess the environmental impacts from transportation of radioactive materials in urban environs. The impacts from accident-free transport, vehicular accidents during transport, and from other abnormal situations are analyzed. The approach is outlined including description of the models developed and the data bases employed to account for the special features of the urban environment. The operations and contributions of the task group formed to assist in this study are also discussed. The results obtained for the New York City study area are presented and explained

  17. Transport of radionuclides in urban environs: working draft assessment

    Energy Technology Data Exchange (ETDEWEB)

    DuCharme, A.R.; Akins, R.E.; Daniel, S.L.; Ericson, D.M. Jr.; Finley, B.H.; Kaestner, P.C.; Sheldon, D.D.; Taylor, J.M.; Tierney, M.S.; Finley, N.N.

    1978-05-01

    Purpose of this study is to assess the environmental impacts from transportation of radioactive materials in urban environs. The impacts from accident-free transport, vehicular accidents during transport, and from other abnormal situations are analyzed. The approach is outlined including description of the models developed and the data bases employed to account for the special features of the urban environment. The operations and contributions of the task group formed to assist in this study are also discussed. The results obtained for the New York City study area are presented and explained.

  18. Wild Food, Prices, Diets and Development: Sustainability and Food Security in Urban Cameroon

    Directory of Open Access Journals (Sweden)

    Lauren Q. Sneyd

    2013-11-01

    Full Text Available This article analyses wild food consumption in urban areas of Cameroon. Building upon findings from Cameroon’s Comprehensive Food Security and Vulnerability Analysis (CFSVA this case study presents empirical data collected from 371 household and market surveys in Cameroonian cities. It employs the UN Special Rapporteur on the Right to Food’s framework for understanding challenges related to the availability, accessibility, and adequacy of food. The survey data suggest that many wild/traditional foods are physically available in Cameroonian cities most of the time, including fruits, vegetables, spices, and insects. Cameroonians spend considerable sums of their food budget on wild foods. However, low wages and the high cost of city living constrain the social and economic access most people have to these foods. The data also suggest that imports of non-traditional staple foods, such as low cost rice, have increasingly priced potentially more nutritious or safe traditional local foods out of markets after the 2008 food price crisis. As a result, diets are changing in Cameroon as the resource-constrained population continues to resort to the coping strategy of eating cheaper imported foods such as refined rice or to eating less frequently. Cameroon’s nutrition transition continues to be driven by need and not necessarily by the preferences of Cameroonian consumers. The implications of this reality for sustainability are troubling.

  19. Urban food crop production capacity and competition with the urban forest

    Science.gov (United States)

    Jeffrey J Richardson; L. Monika Moskal

    2016-01-01

    The sourcing of food plays a significant role in assessing the sustainability of a city, but it is unclear how much food a city can produce within its city limits. In this study, we propose a method for estimating the maximum food crop production capacity of a city and demonstrate the method in Seattle, WA USA by taking into account land use, the light environment, and...

  20. Energy And Environment in Urban Regeneration. Studies for a Method of Analysis of Urban Periphery

    Directory of Open Access Journals (Sweden)

    Paolo De Pascali

    2014-05-01

    Full Text Available Despite planning of urban regeneration has been theorized from several decades, today activating concrete programs encounters major difficulties. Moreover, the structural nature of economic crisis and the operators tendency to maintaining obsolete models of urban transformation certainly do not help to overcome the stalemate.The article argues, however, that this framework appears to evolve under the influence of some external factors that bring to the fore the importance of the energy - environmental components in the renewal of the existing city.This address, focused on the concept of urban environment, seems to identify new principles of economic environmental sustainability of the city that converge towards social models of smart community and urban models of smart city.The article then describes the research in progress regarding an operative method to define explicit and replicable bases of the urban environment concept to be considered in plans of urban renewal. Main fields of observation and measurement are “urban comfort” and “anthropogenic load (pollution”. An experimental application of the analysis is developed on the eastern area of Rome. Finally, the paper offers specific lines for the research development.

  1. COPING WITH CONTAMINATED SEDIMENTS AND SOILS IN THE URBAN ENVIRONMENT.

    Energy Technology Data Exchange (ETDEWEB)

    JONES,K.W.; VAN DER LELIE,D.; MCGUIGAN,M.; ET AL.

    2004-05-25

    Soils and sediments contaminated with toxic organic and inorganic compounds harmful to the environment and to human health are common in the urban environment. We report here on aspects of a program being carried out in the New York/New Jersey Port region to develop methods for processing dredged material from the Port to make products that are safe for introduction to commercial markets. We discuss some of the results of the program in Computational Environmental Science, Laboratory Environmental Science, and Applied Environmental Science and indicate some possible directions for future work. Overall, the program elements integrate the scientific and engineering aspects with regulatory, commercial, urban planning, local governments, and community group interests. Well-developed connections between these components are critical to the ultimate success of efforts to cope with the problems caused by contaminated urban soils and sediments.

  2. Past successes and future challenges: Improving the urban environment

    Energy Technology Data Exchange (ETDEWEB)

    Gade, M.

    1994-12-31

    The author discusses issues related to the Chicago urban environment from her perspective in the Illinois Environmental Protection Agency. Understanding of the ozone air pollution problem in the Chicago area has undergone significant changes in the past three years, and there is still more to be understood about the complex factors which contribute to ozone pollution over urban areas such as Chicago. Ability to address these problems to present clean air standards is not in hand at present. The author asserts that information, and the ability of governmental agencies to ingest and respond to that information in a timely manner is a key to improvement of the environment in urban areas in reasonable time spans. In addition cost and price information on environmental control and protection needs to be more clearly presented to the people so they can understand the difficult choices which must be made in addressing these environmental problems.

  3. Past successes and future challenges: Improving the urban environment

    International Nuclear Information System (INIS)

    Gade, M.

    1994-01-01

    The author discusses issues related to the Chicago urban environment from her perspective in the Illinois Environmental Protection Agency. Understanding of the ozone air pollution problem in the Chicago area has undergone significant changes in the past three years, and there is still more to be understood about the complex factors which contribute to ozone pollution over urban areas such as Chicago. Ability to address these problems to present clean air standards is not in hand at present. The author asserts that information, and the ability of governmental agencies to ingest and respond to that information in a timely manner is a key to improvement of the environment in urban areas in reasonable time spans. In addition cost and price information on environmental control and protection needs to be more clearly presented to the people so they can understand the difficult choices which must be made in addressing these environmental problems

  4. Children Researching Their Urban Environment: Developing a Methodology

    Science.gov (United States)

    Hacking, Elisabeth Barratt; Barratt, Robert

    2009-01-01

    "Listening to children: environmental perspectives and the school curriculum" (L2C) was a UK research council project based in schools in a socially and economically deprived urban area in England. It focused on 10/12 year old children's experience of their local community and environment, and how they made sense of this in relation both…

  5. Close Encounters with the Turbulent Environment of Urban Education.

    Science.gov (United States)

    Jefferson, Arthur; Levey, Richard

    1978-01-01

    In order to improve the quality of urban education, public school educators must be joined by the public, legislators, business leaders, and social planners. These individuals will need to understand public policy priorities, as well as the social, economic, and political forces which define our present environment. (Author/GC)

  6. Population pressure and health risks in urban market environment: a ...

    African Journals Online (AJOL)

    Population pressure and health risks in urban market environment: a study of Bodija market, Ibadan, Nigeria. ... International Journal of Development and Management Review ... This study was directed at permanent sellers in Bodija Market, (men and women) and people who frequent the market to make purchases.

  7. The Influence of Local Food Environments on Adolescents’ Food Purchasing Behaviors

    Directory of Open Access Journals (Sweden)

    Jennifer D. Irwin

    2012-04-01

    Full Text Available This study examined the relationship between the neighborhood food environment and the food purchasing behaviors among adolescents. Grade 7 and 8 students (n = 810 at 21 elementary schools in London, Ontario, Canada completed a questionnaire assessing their food purchasing behaviors. Parents of participants also completed a brief questionnaire providing residential address and demographic information. A Geographic Information System (GIS was used to assess students’ home and school neighborhood food environment and land use characteristics. Logistic regression analysis was conducted to assess the influence of the home neighborhood food environment on students’ food purchasing behaviors, while two-level Hierarchical Non-Linear Regression Models were used to examine the effects of school neighborhood food environment factors on students’ food purchasing behaviors. The study showed that approximately 65% of participants reported self-purchasing foods from fast-food outlets or convenience stores. Close proximity (i.e., less than 1 km to the nearest fast-food outlet or convenience store in the home neighborhood increased the likelihood of food purchasing from these food establishments at least once per week by adolescents (p < 0.05. High fast-food outlet density in both home and school neighborhoods was associated with increased fast-food purchasing by adolescents (i.e., at least once per week; p < 0.05. In conclusion, macro-level regulations and policies are required to amend the health-detracting neighborhood food environment surrounding children and youth’s home and school.

  8. Road Salts as Environmental Constraints in Urban Pond Food Webs

    Science.gov (United States)

    Van Meter, Robin J.; Swan, Christopher M.

    2014-01-01

    Freshwater salinization is an emerging environmental filter in urban aquatic ecosystems that receive chloride road salt runoff from vast expanses of impervious surface cover. Our study was designed to evaluate the effects of chloride contamination on urban stormwater pond food webs through changes in zooplankton community composition as well as density and biomass of primary producers and consumers. From May – July 2009, we employed a 2×2×2 full-factorial design to manipulate chloride concentration (low = 177 mg L−1 Cl−/high = 1067 mg L−1 Cl−), gray treefrog (Hyla versicolor) tadpoles (presence/absence) and source of stormwater pond algae and zooplankton inoculum (low conductance/high conductance urban ponds) in 40, 600-L mesocosms. Road salt did serve as a constraint on zooplankton community structure, driving community divergence between the low and high chloride treatments. Phytoplankton biomass (chlorophyll [a] µg L−1) in the mesocosms was significantly greater for the high conductance inoculum (Psalts among algal resources and zooplankton taxa, and further suggest that road salts can act as a significant environmental constraint on urban stormwater pond communities. PMID:24587259

  9. Phosphorus cycling in Montreal's food and urban agriculture systems.

    Science.gov (United States)

    Metson, Geneviève S; Bennett, Elena M

    2015-01-01

    Cities are a key system in anthropogenic phosphorus (P) cycling because they concentrate both P demand and waste production. Urban agriculture (UA) has been proposed as a means to improve P management by recycling cities' P-rich waste back into local food production. However, we have a limited understanding of the role UA currently plays in the P cycle of cities or its potential to recycle local P waste. Using existing data combined with surveys of local UA practitioners, we quantified the role of UA in the P cycle of Montreal, Canada to explore the potential for UA to recycle local P waste. We also used existing data to complete a substance flow analysis of P flows in the overall food system of Montreal. In 2012, Montreal imported 3.5 Gg of P in food, of which 2.63 Gg ultimately accumulated in landfills, 0.36 Gg were discharged to local waters, and only 0.09 Gg were recycled through composting. We found that UA is only a small sub-system in the overall P cycle of the city, contributing just 0.44% of the P consumed as food in the city. However, within the UA system, the rate of recycling is high: 73% of inputs applied to soil were from recycled sources. While a Quebec mandate to recycle 100% of all organic waste by 2020 might increase the role of UA in P recycling, the area of land in UA is too small to accommodate all P waste produced on the island. UA may, however, be a valuable pathway to improve urban P sustainability by acting as an activity that changes residents' relationship to, and understanding of, the food system and increases their acceptance of composting.

  10. Natural radioactive environment of urban soils in Shihezi, China

    International Nuclear Information System (INIS)

    Ge Benwei; Liu Anna

    2009-01-01

    Radionuclides, such as 238 U, 232 Th and 40 K, can be found in urban soil. To evaluate the natural radioactivity in the environment, soil samples were collected form Shihezi city and radioisotope concentrations were determined by X-ray fluorescence. The dose rate of urban soil (mGy per year, mGy/a) was calculated. The results indicate that the U, Th and K concentrations of the urban soils were, respectively, 1.2-3.2 mg/kg, 6.4-12.3 mg/kg and 2.05%-2.24%, with the mean values of 2.47 mg/kg, 10.47 mg/kg and 2.16 %. Dose rates of urban soils were 10.04-19.55 mGy/a with the mean value of 16.31 mGy/a. This dose rate is the perfect and maximum value of natural radiation in soil and different with the air absorbed dose rate from terrestrial γ-rays. The mean value of air absorbed dose rate was about 57.42 nGy/h. The annual effective dose rate in air was about 0.07 mSv/a and the average value of Ra eq in urban soil was 120.37 Bq/kg. The relative contribution of α particle to the dose rate is higher than that derived from β- and γ-rays in the urban soils. (authors)

  11. Population cardiovascular health and urban environments: the Heart Healthy Hoods exploratory study in Madrid, Spain

    Directory of Open Access Journals (Sweden)

    Usama Bilal

    2016-08-01

    Full Text Available Abstract Background Our aim is to conduct an exploratory study to provide an in-depth characterization of a neighborhood’s social and physical environment in relation to cardiovascular health. A mixed-methods approach was used to better understand the food, alcohol, tobacco and physical activity domains of the urban environment. Methods We conducted this study in an area of 16,000 residents in Madrid (Spain. We obtained cardiovascular health and risk factors data from all residents aged 45 and above using Electronic Health Records from the Madrid Primary Health Care System. We used several quantitative audit tools to assess: the type and location of food outlets and healthy food availability; tobacco and alcohol points of sale; walkability of all streets and use of parks and public spaces. We also conducted 11 qualitative interviews with key informants to help understanding the relationships between urban environment and cardiovascular behaviors. We integrated quantitative and qualitative data following a mixed-methods merging approach. Results Electronic Health Records of the entire population of the area showed similar prevalence of risk factors compared to the rest of Madrid/Spain (prevalence of diabetes: 12 %, hypertension: 34 %, dyslipidemia: 32 %, smoking: 10 %, obesity: 20 %. The food environment was very dense, with many small stores (n = 44 and a large food market with 112 stalls. Residents highlighted the importance of these small stores for buying healthy foods. Alcohol and tobacco environments were also very dense (n = 91 and 64, respectively, dominated by bars and restaurants (n = 53 that also acted as food services. Neighbors emphasized the importance of drinking as a socialization mechanism. Public open spaces were mostly used by seniors that remarked the importance of accessibility to these spaces and the availability of destinations to walk to. Conclusion This experience allowed testing and refining

  12. Barriers to Food Security and Community Stress in an Urban Food Desert

    Directory of Open Access Journals (Sweden)

    Jessica Crowe

    2018-05-01

    Full Text Available By analyzing data from focus groups in a poor, mostly African American neighborhood in a large U.S. city, we describe how residents in urban food deserts access food, the barriers they experience in accessing nutritious, affordable food, and how community food insecurity exacerbates prior social, built, and economic stressors. Provided the unwillingness of supermarkets and supercenters to locate to poor urban areas and the need for nutritious, affordable food, it may be more efficient and equitable for government programs to financially partner with ethnic markets and smaller locally-owned grocery stores to increase the distribution and marketing of healthy foods rather than to spend resources trying to entice a large supermarket to locate to the neighborhood. By focusing on improving the conditions of the neighborhood and making smaller grocery stores and markets more affordable and produce more attractive to residents, the social, built, and economic stressors experienced by residents will be reduced, thereby possibly improving overall mental and physical health.

  13. Does opening a supermarket in a food desert change the food environment?

    Science.gov (United States)

    Ghosh-Dastidar, Madhumita; Hunter, Gerald; Collins, Rebecca L; Zenk, Shannon N; Cummins, Steven; Beckman, Robin; Nugroho, Alvin K; Sloan, Jennifer C; Wagner, La'Vette; Dubowitz, Tamara

    2017-07-01

    Improving access to healthy foods in low-income neighborhoods is a national priority. Our study evaluated the impact of opening a supermarket in a 'food desert' on healthy food access, availability and prices in the local food environment. We conducted 30 comprehensive in-store audits collecting information on healthy and unhealthy food availability, food prices and store environment, as well as 746 household surveys in two low-income neighborhoods before and after one of the two neighborhoods received a new supermarket. We found positive and negative changes in food availability, and an even greater influence on food prices in neighborhood stores. The supermarket opening in a 'food desert' caused little improvement in net availability of healthy foods, challenging the underpinnings of policies such as the Healthy Food Financing Initiative. Copyright © 2017 Elsevier Ltd. All rights reserved.

  14. Retail food environments research in Canada: A scoping review.

    Science.gov (United States)

    Minaker, Leia M; Shuh, Alanna; Olstad, Dana L; Engler-Stringer, Rachel; Black, Jennifer L; Mah, Catherine L

    2016-06-09

    The field of retail food environments research is relatively new in Canada. The objective of this scoping review is to provide an overview of retail food environments research conducted before July 2015 in Canada. Specifically, this review describes research foci and key findings, identifies knowledge gaps and suggests future directions for research. A search of published literature concerning Canadian investigations of retail food environment settings (food stores, restaurants) was conducted in July 2015 using PubMed, Web of Science, Scopus, PsychInfo and ERIC. Studies published in English that reported qualitative or quantitative data on any aspect of the retail food environment were included, as were conceptual papers and commentaries. Eighty-eight studies were included in this review and suggest that the field of retail food environments research is rapidly expanding in Canada. While only 1 paper was published before 2005, 66 papers were published between 2010 and 2015. Canadian food environments research typically assessed either the socio-economic patterning of food environments (n = 28) or associations between retail food environments and diet, anthropometric or health outcomes (n = 33). Other papers profiled methodological research, qualitative studies, intervention research and critical commentaries (n = 27). Key gaps in the current literature include measurement inconsistency among studies and a lack of longitudinal and intervention studies. Retail food environments are a growing topic of research, policy and program development in Canada. Consistent methods (where appropriate), longitudinal and intervention research, and close partnerships between researchers and key stakeholders would greatly advance the field of retail food environments research in Canada.

  15. Public spaces and urban sustainability in the tropical built environment

    Science.gov (United States)

    Yusof, Y. M.; Kozlowski, M.

    2018-01-01

    Sustainability is an overarching sense of responsibility towards the future. On a city-wide level, urban sustainability incorporates a wide body of changes especially as they relate to the built environment, all of which intended at creating a livable place. This paper discusses existing public spaces in view of their achievement against a set of criteria for the built environment. The paper introduces performance design criteria for the tropical built environment. The key findings indicate that long-term strategies, guidance and directions for the city and region can achieve development which corresponds to local climate, synergies and provide a higher proportion of public spaces that offer something for everyone.

  16. The urban environment, its hazards and human behaviour

    Directory of Open Access Journals (Sweden)

    Marko Polič

    1999-01-01

    Full Text Available The physical environment is only a tool, a medium or a place enabling human interrelations to develop. This is perhaps the most evident in cases of dangers people confront within an environment. Everything from disasters and minor incidents to vandalism and crime is reflected in human behaviour, from satisfying our basic needs all the way to discerning the sense of reality. The article presents an array of reflections from accidents and dangers in an urban environment that can hurt the largest number of people, to less dangerous, but unpleasant acts for an individual.

  17. Delta Healthy Sprouts: Participants' Diet and Food Environment at Baseline

    Science.gov (United States)

    Local food environments influence the nutrition and health of area residents. This baseline analysis focuses on the food environments of women who participated in the Delta Healthy Sprouts project, a randomized, controlled, comparative trial designed to test the efficacy of two Maternal, Infant, an...

  18. Food store owners' and managers' perspectives on the food environment: an exploratory mixed-methods study.

    Science.gov (United States)

    Gravlee, Clarence C; Boston, P Qasimah; Mitchell, M Miaisha; Schultz, Alan F; Betterley, Connie

    2014-10-03

    Neighborhood characteristics such as poverty and racial composition are associated with inequalities in access to food stores and in the risk of obesity, but the pathways between food environments and health are not well understood. This article extends research on consumer food environments by examining the perspectives of food-store owners and managers. We conducted semistructured, open-ended interviews with managers and owners of 20 food stores in low-income, predominantly African American neighborhoods in Tallahassee, Florida (USA). The interviews were designed to elicit store managers' and owners' views about healthy foods, the local food environment, and the challenges and opportunities they face in creating access to healthy foods. We elicited perceptions of what constitutes "healthy foods" using two free-list questions. The study was designed and implemented in accord with principles of community-based participatory research. Store owners' and managers' conceptions of "healthy foods" overlapped with public health messages, but (a) agreement about which foods are healthy was not widespread and (b) some retailers perceived processed foods such as snack bars and sugar-sweetened juice drinks as healthy. In semistructured interviews, store owners and managers linked the consumer food environment to factors across multiple levels of analysis, including: business practices such as the priority of making sales and the delocalization of decision-making, macroeconomic factors such as poverty and the cost of healthier foods, individual and family-level factors related to parenting and time constraints, and community-level factors such as crime and decline of social cohesion. Our results link food stores to multilevel, ecological models of the food environment. Efforts to reshape the consumer food environment require attention to factors across multiple levels of analysis, including local conceptions of "healthy foods", the business priority of making sales, and

  19. The influence of local food environments on adolescents' food purchasing behaviors.

    Science.gov (United States)

    He, Meizi; Tucker, Patricia; Gilliland, Jason; Irwin, Jennifer D; Larsen, Kristian; Hess, Paul

    2012-04-01

    This study examined the relationship between the neighborhood food environment and the food purchasing behaviors among adolescents. Grade 7 and 8 students (n = 810) at 21 elementary schools in London, Ontario, Canada completed a questionnaire assessing their food purchasing behaviors. Parents of participants also completed a brief questionnaire providing residential address and demographic information. A Geographic Information System (GIS) was used to assess students' home and school neighborhood food environment and land use characteristics. Logistic regression analysis was conducted to assess the influence of the home neighborhood food environment on students' food purchasing behaviors, while two-level Hierarchical Non-Linear Regression Models were used to examine the effects of school neighborhood food environment factors on students' food purchasing behaviors. The study showed that approximately 65% of participants reported self-purchasing foods from fast-food outlets or convenience stores. Close proximity (i.e., less than 1 km) to the nearest fast-food outlet or convenience store in the home neighborhood increased the likelihood of food purchasing from these food establishments at least once per week by adolescents (p purchasing by adolescents (i.e., at least once per week; p < 0.05). In conclusion, macro-level regulations and policies are required to amend the health-detracting neighborhood food environment surrounding children and youth's home and school.

  20. The Influence of Local Food Environments on Adolescents’ Food Purchasing Behaviors

    Science.gov (United States)

    He, Meizi; Tucker, Patricia; Gilliland, Jason; Irwin, Jennifer D.; Larsen, Kristian; Hess, Paul

    2012-01-01

    This study examined the relationship between the neighborhood food environment and the food purchasing behaviors among adolescents. Grade 7 and 8 students (n = 810) at 21 elementary schools in London, Ontario, Canada completed a questionnaire assessing their food purchasing behaviors. Parents of participants also completed a brief questionnaire providing residential address and demographic information. A Geographic Information System (GIS) was used to assess students’ home and school neighborhood food environment and land use characteristics. Logistic regression analysis was conducted to assess the influence of the home neighborhood food environment on students’ food purchasing behaviors, while two-level Hierarchical Non-Linear Regression Models were used to examine the effects of school neighborhood food environment factors on students’ food purchasing behaviors. The study showed that approximately 65% of participants reported self-purchasing foods from fast-food outlets or convenience stores. Close proximity (i.e., less than 1 km) to the nearest fast-food outlet or convenience store in the home neighborhood increased the likelihood of food purchasing from these food establishments at least once per week by adolescents (p purchasing by adolescents (i.e., at least once per week; p < 0.05). In conclusion, macro-level regulations and policies are required to amend the health-detracting neighborhood food environment surrounding children and youth’s home and school. PMID:22690205

  1. Metagenomic analysis of the airborne environment in urban spaces.

    Science.gov (United States)

    Be, Nicholas A; Thissen, James B; Fofanov, Viacheslav Y; Allen, Jonathan E; Rojas, Mark; Golovko, George; Fofanov, Yuriy; Koshinsky, Heather; Jaing, Crystal J

    2015-02-01

    The organisms in aerosol microenvironments, especially densely populated urban areas, are relevant to maintenance of public health and detection of potential epidemic or biothreat agents. To examine aerosolized microorganisms in this environment, we performed sequencing on the material from an urban aerosol surveillance program. Whole metagenome sequencing was applied to DNA extracted from air filters obtained during periods from each of the four seasons. The composition of bacteria, plants, fungi, invertebrates, and viruses demonstrated distinct temporal shifts. Bacillus thuringiensis serovar kurstaki was detected in samples known to be exposed to aerosolized spores, illustrating the potential utility of this approach for identification of intentionally introduced microbial agents. Together, these data demonstrate the temporally dependent metagenomic complexity of urban aerosols and the potential of genomic analytical techniques for biosurveillance and monitoring of threats to public health.

  2. Research Award: Food, Environment and Health

    International Development Research Centre (IDRC) Digital Library (Canada)

    Office 2004 Test Drive User

    economic value/impact, multi-sector action, and environmental sustainability. FEH ... interventions to different actors in the food system, and the value and impact of changes in food ... (government, civil society and private sectors). While it ... exploring how public policy interventions can support healthy and sustainable diets.

  3. [The human right to adequate food: an urban vision].

    Science.gov (United States)

    Casemiro, Juliana Pereira; Valla, Victor Vincent; Guimarães, Maria Beatriz Lisboa

    2010-07-01

    The human right to adequate food is comprehended in two dimensions: being free of hunger and denutrition and having access to an adequate food. The urban context, in which the possession of food is done primarily through merchandising because of its strong consuming appealing, became a big challenge to debate this topic in poor districts today. Here we combine considerations of a qualitative study carried out in São João de Meriti, Rio de Janeiro State, joining leaders from Pastoral da Criança in focal group sessions. The unemployment, the sub-employment and the difficulty in reaching the public health system, the social assistance and basic sanitation were presented as the major obstacles to bring into effect the human right to food. It was possible to determine that, among the strategies to fight the poverty and hunger, a big highlight is the establishment of mutual help mechanisms. The social support, generosity and religiousness were presented as the most important categories among the thoughts of the leaders. Facing a reality in which poverty and hunger appear as something inherent or become a mechanism of change during elections, the issue of the clienteles appears as a huge concern and challenge for those leaders.

  4. Beyond Neighborhood Food Environments: Distance Traveled to Food Establishments in 5 US Cities, 2009-2011.

    Science.gov (United States)

    Liu, Jodi L; Han, Bing; Cohen, Deborah A

    2015-08-06

    Accurate conceptualizations of neighborhood environments are important in the design of policies and programs aiming to improve access to healthy food. Neighborhood environments are often defined by administrative units or buffers around points of interest. An individual may eat and shop for food within or outside these areas, which may not reflect accessibility of food establishments. This article examines the relevance of different definitions of food environments. We collected data on trips to food establishments using a 1-week food and travel diary and global positioning system devices. Spatial-temporal clustering methods were applied to identify homes and food establishments visited by study participants. We identified 513 visits to food establishments (sit-down restaurants, fast-food/convenience stores, malls or stores, groceries/supermarkets) by 135 participants in 5 US cities. The average distance between the food establishments and homes was 2.6 miles (standard deviation, 3.7 miles). Only 34% of the visited food establishments were within participants' neighborhood census tract. Buffers of 1 or 2 miles around the home covered 55% to 65% of visited food establishments. There was a significant difference in the mean distances to food establishments types (P = .008). On average, participants traveled the longest distances to restaurants and the shortest distances to groceries/supermarkets. Many definitions of the neighborhood food environment are misaligned with individual travel patterns, which may help explain the mixed findings in studies of neighborhood food environments. Neighborhood environments defined by actual travel activity may provide more insight on how the food environment influences dietary and food shopping choices.

  5. School food environments associated with adiposity in Canadian children.

    Science.gov (United States)

    Fitzpatrick, C; Datta, G D; Henderson, M; Gray-Donald, K; Kestens, Y; Barnett, T A

    2017-07-01

    Targeting obesogenic features of children's environment that are amenable to change represents a promising strategy for health promotion. The school food environment, defined as the services and policies regarding nutrition and the availability of food in the school and surrounding neighborhood, is particularly important given that students travel through the school neighborhood almost daily and that they consume a substantial proportion of their calories at school. As part of the Quebec Adipose and Lifestyle Investigation in Youth (QUALITY) cohort study, we assessed features of school indoor dietary environment and the surrounding school neighborhoods, when children were aged 8-10 years (2005-2008). School principals reported on food practices and policies within the schools. The density of convenience stores and fast-food outlets surrounding the school was computed using a Geographical Information System. Indicators of school neighborhood deprivation were derived from census data. Adiposity outcomes were measured in a clinical setting 2 years later, when participants were aged 10-12 years (2008-2011). We conducted cluster analyses to identify school food environment types. Associations between school types and adiposity were estimated in linear regression models. Cluster analysis identified three school types with distinct food environments. Schools were characterized as: overall healthful (45%); a healthful food environment in the surrounding neighborhood, but an unhealthful indoor food environment (22%); or overall unhealthful (33%). Less healthful schools were located in more deprived neighborhoods and were associated with greater child adiposity. Despite regulatory efforts to improve school food environments, there is substantial inequity in dietary environments across schools. Ensuring healthful indoor and outdoor food environments across schools should be included in comprehensive efforts to reduce obesity-related health disparities.

  6. Food selection criteria for disaster response planning in urban societies.

    Science.gov (United States)

    Wien, Michelle; Sabaté, Joan

    2015-05-12

    Nutrition professionals that have menu planning and disaster management responsibilities should consider factors that have transcended from ancient to current times, in addition to recognizing societal trends that have led to our current increased vulnerability in the event of a disaster. Hence, we proceeded to develop a set of "Disaster Response Diets" (DRDs) for use in urban societies inclusive of the aforementioned considerations. A three-phase multidimensional approach was used to identify food groups suitable for creating a set of DRDs. Phase One consisted of calculating the percent daily nutrient intake and Drewnowski's naturally nutrient rich (NNR) score for an individual or mean composite for one serving of food from 11 specific food groups. In Phase Two, in addition to nutrient density, the 11 food groups were evaluated and scored based on the following DRD planning criteria: storage and handling properties, preparation ease and, cultural acceptance/individual tolerance. During Phase Three, three DRDs were developed based upon the data retrieved from Phases one and two. In Phase One, the NNR scores ranged from 2.1 for fresh fruits to 28.1 for dry cereals, a higher score indicating a higher nutrient density. During Phase Two, a maximum score of 12 was possible based on appropriateness for a disaster situation. Five plant-based food groups (dry cereals, nuts, dried fruits, grains and legumes) achieved a score ranging between 7 and 12, whereas the five fresh food groups were deemed ineligible due to sanitation and perishability concerns. During Phase Three, three DRDs (milk-inclusive, milk-free and Grab-and-Go) were developed as benchmarks for disaster response planning. Plant-based DRDs are universally acceptable and tolerated across cultures and religions. Therefore, we suggest nutrition professionals consider using a plant-based approach for creating DRDs for public health institutions and organizations.

  7. Mapping the radioactive contamination in urban environments after nuclear emergencies

    International Nuclear Information System (INIS)

    Kaiser, Jan Christian; Proehl, Gerhard; Woda, Clemens

    2008-01-01

    Full text: In the event of a nuclear emergency in an urban environment a reliable overview on the radioactive contamination is crucial for decision making. To assess the radiological situation both measurements of the gamma dose or dose rate (GDR) and results from urban dispersion and deposition models are used. Measurements may arrive from various sources like car-borne detectors or man-borne radiation-sensitive materials embedded in cell phones, flash memory devices or RFID chips. The measurements depend strongly on the detector environment. To account for this dependence each signal is multiplied by a location factor, which quantifies the deviation of the recorded signal from the hypothetical signal of a reference surface of infinitely extended lawn. Furthermore, the data originate from geo-referenced points or lines but do not provide full spatial information. We present here two approaches to produce maps of the reference GDR or surface contamination in urban areas, which are implemented in the Inhabited Areas Monitoring Module (IAMM) as part of the European decision support systems RODOS and ARGOS. Immediately after the accident, a few measurements are combined with the predictions of urban models using data assimilation. If enough measurements are available they are regionalised with geo-statistical interpolation algorithms like inverse distance weighting or kriging. Both approaches are demonstrated in hypothetical scenarios based on the explosion of a radioactive dispersion device. (author)

  8. Strategic management in urban environment using SWOT and QSPM model

    Directory of Open Access Journals (Sweden)

    M. Pazouki

    2017-04-01

    Full Text Available Sustainable urban development is a new concept of fundamental environmental metropolitan management that not only creates the demand for changing the concepts of economic development, but also affects social development. The current study  provides  a conceptual model of a sustainable environment pattern In District 22 of Tehran that depends on the relationship between environment and economy, and a network of urban function, which  Included transport infrastructure and community centers and economic and regional level in support of the ecological services in Tehran. This landscape often  had discrepancies  with the development of the city between the layers and the creation of ecological fragile areas. The main objective of the study was to determine the sustainability indicators and create a future development  model  for District 22 of Tehran. The data was collected by having a review of similar studies and field research on the subject and therefore the effective factors were identified. After accomplished proceedings, the questionnaire was prepared and the results were used in SWOT charts' grading after analyzing at interior and exterior matrix. Ultimately, quantitative strategic planning matrix (QSPM was performed based on the results and analysis. This process provided a comprehensive model for sustainable urban development as sustainable development urban landscape pattern.

  9. Urban green spaces assessment approach to health, safety and environment

    Directory of Open Access Journals (Sweden)

    B. Akbari Neisiani

    2016-04-01

    Full Text Available The city is alive with dynamic systems, where parks and urban green spaces have high strategic importance which help to improve living conditions. Urban parks are used as visual landscape with so many benefits such as reducing stress, reducing air pollution and producing oxygen, creating opportunities for people to participate in physical activities, optimal environment for children and decreasing noise pollution. The importance of parks is such extent that are discussed as an indicator of urban development. Hereupon the design and maintenance of urban green spaces requires integrated management system based on international standards of health, safety and the environment. In this study, Nezami Ganjavi Park (District 6 of Tehran with the approach to integrated management systems have been analyzed. In order to identify the status of the park in terms of the requirements of the management system based on previous studies and all Tehran Municipality’s considerations, a check list has been prepared and completed by park survey and interview with green space experts. The results showed that the utility of health indicators were 92.33 % (the highest and environmental and safety indicators were 72 %, 84 % respectively. According to SWOT analysis in Nezami Ganjavi Park some of strength points are fire extinguishers, first aid box, annual testing of drinking water and important weakness is using unseparated trash bins also as an opportunities, there are some interesting factors for children and parents to spend free times. Finally, the most important threat is unsuitable park facilities for disabled.

  10. Comparing nutrition environments in bodegas and fast-food restaurants.

    Science.gov (United States)

    Neckerman, Kathryn M; Lovasi, Laszlo; Yousefzadeh, Paulette; Sheehan, Daniel; Milinkovic, Karla; Baecker, Aileen; Bader, Michael D M; Weiss, Christopher; Lovasi, Gina S; Rundle, Andrew

    2014-04-01

    Many small grocery stores or "bodegas" sell prepared or ready-to-eat items, filling a niche in the food environment similar to fast-food restaurants. However, little comparative information is available about the nutrition environments of bodegas and fast-food outlets. This study compared the nutrition environments of bodegas and national chain fast-food restaurants using a common audit instrument, the Nutrition Environment Measures Study in Restaurants (NEMS-R) protocol. The analytic sample included 109 bodegas and 107 fast-food restaurants located in New York City neighborhoods in the upper third and lower third of the census tract poverty rate distribution. Inter-rater reliability was evaluated in 102 food outlets, including 31 from the analytic sample and 71 from a supplementary convenience sample. The analysis compared scores on individual NEMS-R items, a total summary score, and subscores indicating healthy food availability, nutrition information, promotions of healthy or unhealthy eating, and price incentives for healthy eating, using t tests and χ(2) statistics to evaluate differences by outlet type and neighborhood poverty. Fast-food restaurants were more likely to provide nutrition information, and bodegas scored higher on healthy food availability, promotions, and pricing. Bodegas and fast-food restaurants had similar NEMS-R total scores (bodegas 13.09, fast food 14.31; P=0.22). NEMS-R total scores were higher (indicating healthier environments) in low- than high-poverty neighborhoods among both bodegas (14.79 vs 11.54; P=0.01) and fast-food restaurants (16.27 vs 11.60; Pnutrition environments in the two types of food outlets. Copyright © 2014 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.

  11. The role of street foods in the diet of low-income urban residents, the case of Nairobi

    NARCIS (Netherlands)

    Riet, van 't H.

    2002-01-01

    Urbanisation and lack of economic growth have resulted in increasing urban poverty in developing countries. As urban residents rely on purchasing their foods, food security of the urban poor is predominantly determined by their purchasing power. Street foods provide many urban residents

  12. Mapping the availability and accessibility of healthy food in rural and urban New Zealand--Te Wai o Rona: Diabetes Prevention Strategy.

    Science.gov (United States)

    Wang, Jing; Williams, Margaret; Rush, Elaine; Crook, Nic; Forouhi, Nita G; Simmons, David

    2010-07-01

    Uptake of advice for lifestyle change for obesity and diabetes prevention requires access to affordable 'healthy' foods (high in fibre/low in sugar and fat). The present study aimed to examine the availability and accessibility of 'healthy' foods in rural and urban New Zealand. We identified and visited ('mapped') 1230 food outlets (473 urban, 757 rural) across the Waikato/Lakes areas (162 census areas within twelve regions) in New Zealand, where the Te Wai O Rona: Diabetes Prevention Strategy was underway. At each site, we assessed the availability of 'healthy' foods (e.g. wholemeal bread) and compared their cost with those of comparable 'regular' foods (e.g. white bread). Healthy foods were generally more available in urban than rural areas. In both urban and rural areas, 'healthy' foods were more expensive than 'regular' foods after adjusting for the population and income level of each area. For instance, there was an increasing price difference across bread, meat, poultry, with the highest difference for sugar substitutes. The weekly family cost of a 'healthy' food basket (without sugar) was 29.1% more expensive than the 'regular' basket ($NZ 176.72 v. $NZ 136.84). The difference between the 'healthy' and 'regular' basket was greater in urban ($NZ 49.18) than rural areas ($NZ 36.27) in adjusted analysis. 'Healthy' foods were more expensive than 'regular' choices in both urban and rural areas. Although urban areas had higher availability of 'healthy' foods, the cost of changing to a healthy diet in urban areas was also greater. Improvement in the food environment is needed to support people in adopting healthy food choices.

  13. A framework for understanding grocery purchasing in a low-income urban environment.

    Science.gov (United States)

    Zachary, Drew A; Palmer, Anne M; Beckham, Sarah W; Surkan, Pamela J

    2013-05-01

    Research demonstrates that food desert environments limit low-income shoppers' ability to purchase healthy foods, thereby increasing their likelihood of diet-related illnesses. We sought to understand how individuals in an urban American food desert make grocery-purchasing decisions, and specifically why unhealthy purchases arise. Analysis is based on ethnographic data from participant observation, 37 in-depth interviews, and three focus groups with low-income, primarily African American shoppers with children. We found participants had detailed knowledge of and preference for healthy foods, but the obligation to consistently provide food for their families required them to apply specific decision criteria which, combined with structural qualities of the supermarket environment, increased unhealthy purchases and decreased healthy purchases. Applying situated cognition theory, we constructed an emic model explaining this widely shared grocery-purchasing decision process and its implications. This context-specific understanding of behavior suggests that multifaceted, system-level approaches to intervention are needed to increase healthy purchasing in food deserts.

  14. Research award: Food, Environment, and Health | IDRC ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    2017-09-06

    Sep 6, 2017 ... ... skills and gain a fresh perspective on crucial development issues. ... food systems research and interventions in low- and middle-income countries. ... the research award recipient will contribute to the management of the ...

  15. Exploring Urban Environments Using Virtual and Augmented Reality

    OpenAIRE

    Stelios Papakonstantinou; Vesna Brujic-Okretic; Fotis Liarokapis

    2007-01-01

    In this paper, we propose the use of specific system architecture, based on mobile device, for navigation in urban environments. The aim of this work is to assess how virtual and augmented reality interface paradigms can provide enhanced location based services using real-time techniques in the context of these two different technologies. The virtual reality interface is based on faithful graphical representation of the localities of interest, coupled with sensory information on the location ...

  16. Approach for City Image Strengthening Through Urban Environment Interpretation

    Science.gov (United States)

    Kapustin, P. V.; Kirpileva, I. R.

    2017-11-01

    Statement of the problem: the problems of varied spaces are regarded in the article as well as their influence on a person and their role in the urban structure. Results and conclusions: the authors offer the system of architectural decisions based on the principles of people’s perception of the environment, peculiarities of human memory and evaluation of the properties of these territories. This system allows one to unlock a deep potential of varied spaces centering around the city identity.

  17. Decision analysis for cleanup strategies in an urban environment

    International Nuclear Information System (INIS)

    Sinkko, K.; Ikaeheimonen, T.K.

    2000-01-01

    The values entering the decisions on protective actions, as concerning the society, are multidimensional. People have strong feelings and beliefs about these values, some of which are not numerically quantified and do not exist in monetary form. The decision analysis is applied in planning the recovery operations to clean up an urban environment in the event of a hypothetical nuclear power plant accident assisting in rendering explicit and apparent all factors involved and evaluating their relative importance. (author)

  18. The Sustainable Expression of Ecological Concept in the Urban Landscape Environment Design

    Science.gov (United States)

    Dong, Junyan; Zhou, Tiejun; Xin, Lisen; Tan, Yuetong; Wang, Zhigang

    2018-02-01

    Urbanization is an inevitable trend of development of human society, also the inevitable outcome of economic development and scientific and technological progress, while urbanization process in promoting the development of human civilization, also no doubt, urban landscape has been a corresponding impact. Urban environment has suffered unprecedented damage, the urban population density, traffic congestion, shortage of resources, environmental pollution, ecological degradation, has become the focus of human society. In order to create an environment of ecological and harmonious, beautiful, sustainable development in the urban landscape, This paper discusses the concept of ecological design combined with the urban landscape design and sustainable development of urban landscape design.

  19. The Ontario Food and Nutrition Strategy: identifying indicators of food access and food literacy for early monitoring of the food environment

    OpenAIRE

    Beatrice A. Boucher; Elizabeth Manafò; Meaghan R. Boddy; Lynn Roblin; Rebecca Truscott

    2017-01-01

    Introduction: To address challenges Canadians face within their food environments, a comprehensive, multistakeholder, intergovernmental approach to policy development is essential. Food environment indicators are needed to assess population status and change. The Ontario Food and Nutrition Strategy (OFNS) integrates the food, agriculture and nutrition sectors, and aims to improve the health of Ontarians through actions that promote healthy food systems and environments. This report describes ...

  20. Food-Energy Interactive Tradeoff Analysis of Sustainable Urban Plant Factory Production Systems

    Directory of Open Access Journals (Sweden)

    Li-Chun Huang

    2018-02-01

    Full Text Available This research aims to analyze the food–energy interactive nexus of sustainable urban plant factory systems. Plant factory systems grow agricultural products within artificially controlled growing environment and multi-layer vertical growing systems. The system controls the supply of light, temperature, humidity, nutrition, water, and carbon dioxide for growing plants. Plant factories are able to produce consistent and high-quality agricultural products within less production space for urban areas. The production systems use less labor, pesticide, water, and nutrition. However, food production of plant factories has many challenges including higher energy demand, energy costs, and installation costs of artificially controlled technologies. In the research, stochastic optimization model and linear complementarity models are formulated to conduct optimal and equilibrium food–energy analysis of plant factory production. A case study of plant factories in the Taiwanese market is presented.

  1. Conservation investment for rare plants in urban environments.

    Science.gov (United States)

    Schwartz, Mark W; Smith, Lacy M; Steel, Zachary L

    2013-01-01

    Budgets for species conservation limit actions. Expending resources in areas of high human density is costly and generally considered less likely to succeed. Yet, coastal California contains both a large fraction of narrowly endemic at-risk plant species as well as the state's three largest metropolitan regions. Hence understanding the capacity to protect species along the highly urbanized coast is a conservation priority. We examine at-risk plant populations along California's coastline from San Diego to north of San Francisco to better understand whether there is a relationship between human population density and: i) performance of at-risk plant populations; and ii) conservation spending. Answering these questions can help focus appropriate strategic conservation investment. Rare plant performance was measured using the annualized growth rate estimate between census periods using the California Natural Diversity Database. Human density was estimated using Census Bureau statistics from the year 2000. We found strong evidence for a lack of a relationship between human population density and plant population performance in California's coastal counties. Analyzing US Endangered Species expenditure reports, we found large differences in expenditures among counties, with plants in San Diego County receiving much higher expenditures than other locations. We found a slight positive relationship between expenditures on behalf of endangered species and human density. Together these data support the argument that conservation efforts by protecting habitats within urban environments are not less likely to be successful than in rural areas. Expenditures on behalf of federally listed endangered and threatened plants do not appear to be related to proximity to human populations. Given the evidence of sufficient performance in urban environments, along with a high potential to leverage public support for nature in urban environments, expenditures in these areas appear to be an

  2. Global food chains and environment: agro-food production and processing in Thailand

    NARCIS (Netherlands)

    Sriwichailamphan, T.H.

    2007-01-01

    In this study on the global food chain and the environment, the objective is to understand the dynamics of food safety and environmental improvements among the large and medium-sized agro-food processing industries and farmers in Thailand that operate in the global market. This study assesses

  3. Food for Thought: Analysing the Internal and External School Food Environment

    Science.gov (United States)

    Callaghan, Mary; Molcho, Michal; Nic Gabhainn, Saoirse; Kelly, Colette

    2015-01-01

    Purpose: Availability and access to food is a determinant of obesity. The purpose of this paper is to examine food availability within and outside of post-primary schools in Ireland. Design/methodology/approach: Data on the internal school food environment were collected from 63 post-primary schools using questionnaires. The external school food…

  4. Research Award: Food, Environment, and Health | IDRC ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    2016-09-07

    Sep 7, 2016 ... ... skills and gain a fresh perspective on crucial development issues. ... that impact food systems and promote healthy and sustainable diets. ... communication material; participating in project development, ... Copyright · Open access policy · Privacy policy · Research ethics · Transparency · Website usage.

  5. The association between neighborhood economic hardship, the retail food environment, fast food intake, and obesity: findings from the Survey of the Health of Wisconsin.

    Science.gov (United States)

    Laxy, Michael; Malecki, Kristen C; Givens, Marjory L; Walsh, Matthew C; Nieto, F Javier

    2015-03-13

    Neighborhood-level characteristics such as economic hardship and the retail food environment are assumed to be correlated and to influence consumers' dietary behavior and health status, but few studies have investigated these different relationships comprehensively in a single study. This work aims to investigate the association between neighborhood-level economic hardship, the retail food environment, fast food consumption, and obesity prevalence. Linking data from the population-based Survey of the Health of Wisconsin (SHOW, n = 1,570, 2008-10) and a commercially available business database, the Wisconsin Retail Food Environment Index (WRFEI) was defined as the mean distance from each participating household to the three closest supermarkets divided by the mean distance to the three closest convenience stores or fast food restaurants. Based on US census data, neighborhood-level economic hardship was defined by the Economic Hardship Index (EHI). Relationships were analyzed using multivariate linear and logistic regression models. SHOW residents living in neighborhoods with the highest economic hardship faced a less favorable retail food environment (WRFEI = 2.53) than residents from neighborhoods with the lowest economic hardship (WRFEI = 1.77; p-trend associations between the WRFEI and obesity and only a weak borderline-significant association between access to fast food restaurants and self-reported fast food consumption (≥ 2 times/week, OR = 0.59-0.62, p = 0.05-0.09) in urban residents. Participants reporting higher frequency of fast food consumption (≥ 2 times vs. obese (OR = 1.35, p = 0.06). This study indicates that neighborhood-level economic hardship is associated with an unfavorable retail food environment. However inconsistent or non-significant relationships between the retail food environment, fast food consumption, and obesity were observed. More research is needed to enhance methodological approaches to assess the retail food environment and

  6. Urban forest justice and the rights to wild foods, medicines, and materials in the city

    Science.gov (United States)

    Melissa R. Poe; Rebecca J. McClain; Marla Emery; Patrick. Hurley

    2013-01-01

    Urban forests are multifunctional socio-ecological landscapes, yet some of their social benefits remain poorly understood. This paper draws on ethnographic evidence from Seattle, Washington to demonstrate that urban forests contain nontimber forest products that contribute a variety of wild foods, medicines, and materials for the wellbeing of urban residents. We show...

  7. Understanding school food service characteristics associated with higher competitive food revenues can help focus efforts to improve school food environments.

    Science.gov (United States)

    Guthrie, Joanne F; Newman, Constance; Ralston, Katherine; Prell, Mark; Ollinger, Michael

    2012-08-01

    Many school food services sell extra foods and beverages, popularly referred to as “competitive foods,” in addition to USDA school meals. On the basis of national survey data, most competitive foods and beverages selected by students are of low nutritional value. Recent federal legislation will allow schools that participate in USDA school meal programs to sell competitive foods only if the food items they sell meet nutrition standards based on the Dietary Guidelines for Americans. Concerns have been raised about the potential effects of limiting competitive foods on local school food service finances. However, national data indicate that only in a subset of schools do food services receive large amounts of revenues from competitive foods. These food services are typically located in secondary schools in more affluent districts, serving higher proportions of students who do not receive free or reduced price meals. Compared to other food services, these food services couple higher competitive food revenues with lower school meal participation. Increasing school meal participation could increase meal revenues to offset any loss of competitive food revenues. Replacing less-healthful competitive items with healthier options could also help maintain school food service revenues while improving the school food environment. Nationally consistent nutrition standards for competitive foods may encourage development and marketing of healthful products.

  8. Geospatial analysis of food environment demonstrates associations with gestational diabetes.

    Science.gov (United States)

    Kahr, Maike K; Suter, Melissa A; Ballas, Jerasimos; Ramin, Susan M; Monga, Manju; Lee, Wesley; Hu, Min; Shope, Cindy D; Chesnokova, Arina; Krannich, Laura; Griffin, Emily N; Mastrobattista, Joan; Dildy, Gary A; Strehlow, Stacy L; Ramphul, Ryan; Hamilton, Winifred J; Aagaard, Kjersti M

    2016-01-01

    Gestational diabetes mellitus (GDM) is one of most common complications of pregnancy, with incidence rates varying by maternal age, race/ethnicity, obesity, parity, and family history. Given its increasing prevalence in recent decades, covariant environmental and sociodemographic factors may be additional determinants of GDM occurrence. We hypothesized that environmental risk factors, in particular measures of the food environment, may be a diabetes contributor. We employed geospatial modeling in a populous US county to characterize the association of the relative availability of fast food restaurants and supermarkets to GDM. Utilizing a perinatal database with >4900 encoded antenatal and outcome variables inclusive of ZIP code data, 8912 consecutive pregnancies were analyzed for correlations between GDM and food environment based on countywide food permit registration data. Linkage between pregnancies and food environment was achieved on the basis of validated 5-digit ZIP code data. The prevalence of supermarkets and fast food restaurants per 100,000 inhabitants for each ZIP code were gathered from publicly available food permit sources. To independently authenticate our findings with objective data, we measured hemoglobin A1c levels as a function of geospatial distribution of food environment in a matched subset (n = 80). Residence in neighborhoods with a high prevalence of fast food restaurants (fourth quartile) was significantly associated with an increased risk of developing GDM (relative to first quartile: adjusted odds ratio, 1.63; 95% confidence interval, 1.21-2.19). In multivariate analysis, this association held true after controlling for potential confounders (P = .002). Measurement of hemoglobin A1c levels in a matched subset were significantly increased in association with residence in a ZIP code with a higher fast food/supermarket ratio (n = 80, r = 0.251 P analysis, a relationship of food environment and risk for gestational diabetes was

  9. Agro-Science Journal of Tropical Agriculture, Food, Environment ...

    African Journals Online (AJOL)

    PC USER

    Agro-Science Journal of Tropical Agriculture, Food, Environment and Extension. Volume 14 ... 3Department of Home Science, Nutrition and Dietetics, University of Nigeria, Nsukka,. Nigeria ..... work was found to be 25.7%. This value is higher.

  10. Agro-Science Journal of Tropical Agriculture, Food, Environment ...

    African Journals Online (AJOL)

    PC USER

    Agro-Science Journal of Tropical Agriculture, Food, Environment and Extension. Volume 12 ... proper financial analysis of beneficiaries' enterprises with the view to effectively ascertaining the quantum of ..... Quantitative Analysis of the Major ...

  11. Agro-Science Journal of Tropical Agriculture, Food, Environment ...

    African Journals Online (AJOL)

    PC USER

    Agro-Science Journal of Tropical Agriculture, Food, Environment and Extension. Volume 12 Number 3 ... agricultural field one could maintain a high level of soil fertility. ..... Journal of Applied Biosciences. 7: 202-206. ... International Journal of.

  12. Agro-Science Journal of Tropical Agriculture, Food, Environment ...

    African Journals Online (AJOL)

    OLUWOLE AKINNAGBE

    2009-09-03

    Sep 3, 2009 ... Agro-Science Journal of Tropical Agriculture, Food, Environment and Extension. Volume 8 ... 3 International Institute of Tropical Agriculture, High Rainfall Station,. Onne, Rivers State ...... Biosciences proceedings. 6: 444-454.

  13. Levels of heavy metals in liver and kidney of dogs from urban environment

    Directory of Open Access Journals (Sweden)

    M. Esposito

    2012-04-01

    Full Text Available Lead, cadmium and mercury were detected in liver and kidney tissue of dogs from an urban habitat. Samples were digested in a microwave system and analyzed by atomic absorption spectroscopy. Results of the current study showed that at least one of the three heavy metals was detected in tissues of all examined dogs. These findings make us suppose that humans are exposed to the same heavy metals similar to those of dogs that are exposed since they share the same environment. Mercury concentrations detected in kidney of household dogs were higher than stray dogs, therefore the involvement of pet food in exposure to mercury can be supposed.

  14. Frequency of food group consumption and risk of allergic disease and sensitization in schoolchildren in urban and rural China.

    Science.gov (United States)

    Yang, Z; Zheng, W; Yung, E; Zhong, N; Wong, G W K; Li, J

    2015-12-01

    Diet is a potential determinant of allergic diseases. To examine in schoolchildren the association between food intake and allergic diseases and determine whether there is effect of environment - rural vs. urban. A questionnaire survey was performed in 11 473 children aged 7-12 years in 20 schools from urban Guangzhou and rural Shaoguan, China. A nested case-control group, 402 from Guangzhou and 349 from Shaoguan, was recruited. Food ingestion frequency data were collected. Serum-specific IgE to 34 food and airborne allergens was determined. Associations between food ingestion frequency and clinical outcomes were sought by logistic analyses. The prevalence of self-reported asthma (6.6% vs. 2.5%), rhinitis (23.2% vs. 5.3%) and eczema (34.1% vs. 25.9%) was significantly higher in Guangzhou subjects compared to Shaoguan, whereas prevalence of food hypersensitivity (9.7% vs. 9.2%) and food allergy (4.0% vs. 3.5%) was not significantly different. In this case-control study, seafood and fruits were two major food groups causing food hypersensitivity. Urban children consumed more milk, egg, chocolate, fruits, vegetable and cereals compared to rural children. Significantly higher percentage of Guangzhou children was sensitized to egg and milk, whereas more Shaoguan children were sensitized to seafood, nuts and seeds, fruit, vegetables, legumes and cereals. High consumption of milk (OR 2.604, 95 CI% 1.569-4.322, P food allergy was observed. Diets of schoolchildren are affected by disease-related modification and country's urbanization. High vegetable intake and low milk intake might protect against asthma. © 2015 John Wiley & Sons Ltd.

  15. A food environments feedback system (FoodBack) for empowering citizens and change agents to create healthier community food places.

    Science.gov (United States)

    Vandevijvere, Stefanie; Williams, Rachel; Tawfiq, Essa; Swinburn, Boyd

    2017-11-14

    This study developed a systems-based approach (called FoodBack) to empower citizens and change agents to create healthier community food places. Formative evaluations were held with citizens and change agents in six diverse New Zealand communities, supplemented by semi-structured interviews with 85 change agents in Auckland and Hamilton in 2015-2016. The emerging system was additionally reviewed by public health experts from diverse organizations. A food environments feedback system was constructed to crowdsource key indicators of the healthiness of diverse community food places (i.e. schools, hospitals, supermarkets, fast food outlets, sport centers) and outdoor spaces (i.e. around schools), comments/pictures about barriers and facilitators to healthy eating and exemplar stories on improving the healthiness of food environments. All the information collected is centrally processed and translated into 'short' (immediate) and 'long' (after analyses) feedback loops to stimulate actions to create healthier food places. FoodBack, as a comprehensive food environment feedback system (with evidence databases and feedback and recognition processes), has the potential to increase food sovereignty, and generate a sustainable, fine-grained database of food environments for real-time food policy research. © The Author 2017. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  16. School Food Environment of Charter Schools in St. Louis

    Science.gov (United States)

    Linsenmeyer, Whitney; Kelly, Patrick; Jenkins, Steve; Mattfeldt-Berman, Mildred

    2013-01-01

    Purpose/Objectives: The purpose of this study was to explore the school food environment of charter schools in Saint Louis, Missouri. The objectives were to: (1) describe the participation of charter schools in the National School Lunch Program and (2) describe the prevalence of competitive foods in charter schools. Methods: School administrators…

  17. FOOD HABIT AMONG ELEMENTARY SCHOOL CHILDREN IN URBAN BOGOR

    Directory of Open Access Journals (Sweden)

    Evy Damayanthi

    2012-03-01

    Full Text Available 800x600 Normal 0 false false false IN X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Food habit strongly predicts individual nutritional status. It is largely influenced by family food habit and family socioeconomic, partly by nutrition education learning in the school.  Objectives of this study were to analyze elementary school children eating habit and examine whether it relates to family socioeconomic and nutritional status. One hundred elementary school children, and their mother, from one school in urban Bogor were chosen purposively according to SIBERMAS Program criteria (i.e. grade 4th and 5th, morning school, having UKS program and not having canteen. Self administered, structured pre-coded questionnaire were used to collect the data. Nutritional status was assessed using weight and height, and body mass index for age (BAZ and height for age (HAZ were then calculated using AnthroPlus software developed by WHO (2009. School children were 8-11 years old (mean 9.37 + 0.66 years, more girls (54%, and mostly had normal nutritional status using both indexes (72% for BAZ and 95% for HAZ. School children were commonly from middle class as indicated by father education (sarjana and mother (senior high school.  Almost all school children (99% knew breakfast was important and 81% of them ate breakfast. Only 32% school children brought lunch box everyday although 92% stated their habit to bring lunch box to school. Buying snack in school was also common among school children. Generally school children ate rice 3 times a day (2.95 + 0.97 with fish, meat, chicken (2.47 + 1.14, tempe and

  18. Culture, Environment, and Food to Prevent Vitamin A Deficiency ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Culture, Environment, and Food to Prevent Vitamin A Deficiency. Book cover Culture, Environment, and Food to Prevent Vitamin A Deficiency. Auteur(s) : H.V. Kuhnlein and G.H. Pelto. Maison(s) d'édition : INFDC, IDRC. 1 janvier 1997. ISBN : Out of print. 220 pages. e-ISBN : 1552504409. Téléchargez le PDF · Téléchargez ...

  19. The urban built environment and associations with women's psychosocial health.

    Science.gov (United States)

    Messer, Lynne C; Maxson, Pamela; Miranda, Marie Lynn

    2013-10-01

    The determinants that underlie a healthy or unhealthy pregnancy are complex and not well understood. We assess the relationship between the built environment and maternal psychosocial status using directly observed residential neighborhood characteristics (housing damage, property disorder, tenure status, vacancy, security measures, violent crime, and nuisances) and a wide range of psychosocial attributes (interpersonal support evaluation list, self-efficacy, John Henryism active coping, negative partner support, Perceived Stress Scale, perceived racism, Center for Epidemiologic Studies-Depression) on a pregnant cohort of women living in the urban core of Durham, NC, USA. We found some associations between built environment characteristic and psychosocial health varied by exposure categorization approach, while others (residence in environments with more rental property is associated with higher reported active coping and negative partner support) were consistent across exposure categorizations. This study outlines specific neighborhood characteristics that are modifiable risk markers and therefore important targets for increased research and public health intervention.

  20. Urbancontext: A Management Model For Pervasive Environments In User-Oriented Urban Computing

    Directory of Open Access Journals (Sweden)

    Claudia L. Zuniga-Canon

    2014-01-01

    Full Text Available Nowadays, urban computing has gained a lot of interest for guiding the evolution of citiesinto intelligent environments. These environments are appropriated for individuals’ inter-actions changing in their behaviors. These changes require new approaches that allow theunderstanding of how urban computing systems should be modeled.In this work we present UrbanContext, a new model for designing of urban computingplatforms that applies the theory of roles to manage the individual’s context in urban envi-ronments. The theory of roles helps to understand the individual’s behavior within a socialenvironment, allowing to model urban computing systems able to adapt to individuals statesand their needs.UrbanContext collects data in urban atmospheres and classifies individuals’ behaviorsaccording to their change of roles, to optimize social interaction and offer secure services.Likewise, UrbanContext serves as a generic model to provide interoperability, and to facilitatethe design, implementation and expansion of urban computing systems.

  1. Mayan urbanism: impact on a tropical karst environment.

    Science.gov (United States)

    Deevey, E S; Rice, D S; Rice, P M; Vaughan, H H; Brenner, M; Flannery, M S

    1979-10-19

    From the first millennium B.C. through the 9th-century A.D. Classic Maya collapse, nonurban populations grew exponentially, doubling every 408 years, in the twin-lake (Yaxha-Sacnab) basin that contained the Classic urban center of Yaxha. Pollen data show that forests were essentially cleared by Early Classic time. Sharply accelerated slopewash and colluviation, amplified in the Yaxha subbasin by urban construction, transferred nutrients plus calcareous, silty clay to both lakes. Except for the urban silt, colluvium appearing as lake sediments has a mean total phosphorus concentration close to that of basin soils. From this fact, from abundance and distribution of soil phosphorus, and from continuing post-Maya influxes (80 to 86 milligrams of phosphorus per square meter each year), which have no other apparent source, we conclude that riparian soils are anthrosols and that the mechanism of long-term phosphorus loading in lakes is mass transport of soil. Per capita deliveries of phosphorus match physiological outputs, approximately 0.5 kilogram of phosphorus per capita per year. Smaller apparent deliveries reflect the nonphosphatic composition of urban silt; larger societal outputs, expressing excess phosphorus from deforestation and from food waste and mortuary disposal, are probable but cannot be evaluated from our data. Eutrophication is not demonstrable and was probably impeded, even in less-impacted lakes, by suspended Maya silt. Environmental strain, the product of accelerating agroengineering demand and sequestering of nutrients in colluvium, developed too slowly to act as a servomechanism, damping population growth, at least until Late Classic time.

  2. Safety in urban environment and emergency notice boards

    International Nuclear Information System (INIS)

    Confortini, Claudia; Tira, Maurizio

    2008-01-01

    Reliable and safe urban system conditions have to be a crucial goal of ordinary planning activities. Among planning goals, priority must be given to indications relating to the safety levels to be achieved and to the amount of resources to be directed towards reducing the vulnerability of urban systems and therefore of the measures to be taken. Uban vulnerability cannot in fact be reduced to the sum of the vulnerability of single buildings or to the physical vulnerability of its various components. This research work consists of identifying those urban sub-areas that are important for safety in relation to natural risks, ambits that should be highlighted by means of permanent emergency notice boards/billboards. What are the hazard notices relating to all natural hazards and related risks? Where are they located? Are they clear and straightforward so that all residents and visitors are able to understand them, as it is already the case for road signs (or at least it should be)? What urban sub-areas are worth highlighting in relation to natural risks, acting for example as escape routes or meeting points? How is information for the public managed in order that people are immediately, easily and regularly notified? What is the relation of such signals to ordinary traffic signals? Research into the state of the art of permanent notice boards/billboards of this type, currently distinguished only by sporadic and local initiatives, aims at carrying out a census of and recognizing urban elements already considered as important for reducing the vulnerability of the urban system to different natural calamities and at providing new highlights as regards the identification of new ones. The next step is to work out a decision and common-language strategy for planning these elements and for their adequate signposting, so as to be able to live in the urban environment with awareness, safety and confidence, including with respect to more remote and therefore often neglected

  3. Biophysical control of whole tree transpiration under an urban environment in Northern China

    Science.gov (United States)

    Lixin Chen; Zhiqiang Zhang; Zhandong Li; Jianwu Tang; Peter Caldwell; et al

    2011-01-01

    Urban reforestation in China has led to increasing debate about the impact of urban trees and forests on water resources. Although transpiration is the largest water flux leaving terrestrial ecosystems, little is known regarding whole tree transpiration in urban environments. In this study, we quantified urban tree transpiration at various temporal scales and examined...

  4. Food and beverage environment analysis and monitoring system: a reliability study in the school food and beverage environment.

    Science.gov (United States)

    Bullock, Sally Lawrence; Craypo, Lisa; Clark, Sarah E; Barry, Jason; Samuels, Sarah E

    2010-07-01

    States and school districts around the country are developing policies that set nutrition standards for competitive foods and beverages sold outside of the US Department of Agriculture's reimbursable school lunch program. However, few tools exist for monitoring the implementation of these new policies. The objective of this research was to develop a computerized assessment tool, the Food and Beverage Environment Analysis and Monitoring System (FoodBEAMS), to collect data on the competitive school food environment and to test the inter-rater reliability of the tool among research and nonresearch professionals. FoodBEAMS was used to collect data in spring 2007 on the competitive foods and beverages sold in 21 California high schools. Adherence of the foods and beverages to California's competitive food and beverage nutrition policies for schools (Senate Bills 12 and 965) was determined using the data collected by both research and nonresearch professionals. The inter-rater reliability between the data collectors was assessed using the intraclass correlation coefficient. Researcher vs researcher and researcher vs nonresearcher inter-rater reliability was high for both foods and beverages, with intraclass correlation coefficients ranging from .972 to .987. Results of this study provide evidence that FoodBEAMS is a promising tool for assessing and monitoring adherence to nutrition standards for competitive foods sold on school campuses and can be used reliably by both research and nonresearch professionals. Copyright 2010 American Dietetic Association. Published by Elsevier Inc. All rights reserved.

  5. Nutritional behaviours of pregnant women in rural and urban environments

    Directory of Open Access Journals (Sweden)

    Edyta Suliga

    2015-09-01

    Full Text Available Introduction. Monitoring of the environmental differences in the mode of nutrition is especially important in pregnant women, for whom normal body weight gain is especially important for both the course of pregnancy and the normal development of the foetus, and is inseparably associated with rational nutrition. Objective. The objective of the study was evaluation of the mode of nutrition of pregnant women according to the place of residence. Materials and methods. The investigation comprised 704 women. Information was collected by means of an anonymous survey concerning place of residence, consumption of selected products and beverages, and taking folic acid and other vitamin and/or mineral dietary supplements. Results. In the urban environment, pregnant women more frequently consumed vegetables, milk and dairy products, sea fish and wholemeal cereal products, drank more liquids, as well as more fruit and/or vegetable juices, and more often used the supplementation with folic acid, even before becoming pregnant. No significant differences were found in the consumption of fruits, pulses, products which are the source of complete proteins, confectionery products and sweets, according to the place of residence. Conclusions. The diet of pregnant women from the rural environment compared to that of women from urban areas, was characterized by worse quality. It is necessary to carry out health education in the area of adequate nutrition among pregnant women, and those who plan pregnancy, directed primarily to all women from the rural environment.

  6. The importance of the food and physical activity environments.

    Science.gov (United States)

    Oppert, Jean-Michel; Charreire, Hélène

    2012-01-01

    There is increasing interest in identifying characteristics of neighborhood environments (physical, social, economical) that might favor unhealthy dietary and physical activity patterns leading to excess weight at population level. Measurement of characteristics of the physical environment in relation to food and physical activity has greatly improved in recent years. Methods based on assessment of perceptions by residents of their neighborhood or on objective assessment of the actual built environment (such as provided by Geographic Information Systems tools) would benefit to be combined. A number of recent systematic reviews have updated our knowledge on relationships of food and physical activity environments with relevant behaviors and obesity. Available evidence appears to show more consistent evidence of association between built environment characteristics related to physical activity ('walkability' indices, land use mix, variety of transports. . .) with physical activity behavior than with weight status. In contrast, built environment characteristics related to food habits (accessibility to different types of food outlets, availability of healthy foods. . .) would be more consistently associated with weight status than with eating behavior. The need for data from different countries and cultures is emphasized, as much as the importance of transdisciplinary research efforts for translation of these findings into our living environment. Copyright © 2012 Nestec Ltd., Vevey/S. Karger AG, Basel.

  7. An interpretive study of food, snack and beverage advertisements in rural and urban El Salvador.

    Science.gov (United States)

    Amanzadeh, Baharak; Sokal-Gutierrez, Karen; Barker, Judith C

    2015-05-30

    Globalization and increased marketing of non-nutritious foods and beverages are driving a nutrition transition in developing countries, adversely affecting the health of vulnerable populations. This is a visual interpretive study of food, snack, and beverage advertisements (ads) in rural and urban El Salvador to discern the strategies and messages used to promote consumption of highly processed, commercialized products. Digital photographs of billboard and wall advertisements recorded a convenience sample of 100 advertisements, including 53 from rural areas and 47 from urban areas in El Salvador. Advertisements were coded for location, type of product, visual details, placement and context. Qualitative methods were used to identify common themes used to appeal to consumers. Advertisements depicted "modern" fast foods, processed snacks and sugary beverages. Overall, the most prominent themes were: Cheap Price, Fast, Large Size, and Modern. Other themes used frequently in combination with these were Refreshment, Sports/Nationalism, Sex and Gender Roles, Fun/Happy Feelings, Family, Friendship and Community, and Health. In rural areas, beverage and snack food ads with the themes of cheap price, fast, and large size tended to predominate; in urban areas, ads for fast food restaurants and the theme of modernity tended to be more prominent. The advertisements represented a pervasive bombardment of the public with both explicit and subliminal messages to increase consumerism and shift dietary patterns to processed foods and beverages that are low in micronutrients and high in carbohydrates, sugar, fat and salt--dietary changes that are increasing rates of child and adult diseases including tooth decay, obesity, cardiovascular disease and cancer. Global food and beverage industries must be held accountable for the adverse public health effects of their products, especially in low-middle income countries where there are fewer resources to prevent and treat the health

  8. An Empirical Study on the Relationship between Urbanization and Changes in Resources and Environment

    Institute of Scientific and Technical Information of China (English)

    Tianyuan; LIU; Yu; JIA

    2014-01-01

    The expansion of urban scale is the inevitable outcome during urbanization,and it has exacerbated the contradiction between urbanization,and resources and environment. Based on the environmental indicator data related to the urbanization of Chongqing Municipality during the period 2000- 2012,this article uses regression analysis and ARIMA forecasting model to study the impact of rapid urbanization on the resources and environment. It is found that urbanization is significantly and positively correlated with the built-up area,the annual electricity consumption,domestic waste water discharge amount,and industrial waste gas emission,but significantly and negatively correlated with the industrial solid waste discharge amount; before 2020,along with the improvement of the level of urbanization in Chongqing,the degree of deterioration of the environment and resources will be further increased; after 2020,urbanization and ecological environment will be in a new round of balance,and the resources and environment will be improved.

  9. Food Environment in Secondary Schools: À La Carte, Vending Machines, and Food Policies and Practices

    Science.gov (United States)

    French, Simone A.; Story, Mary; Fulkerson, Jayne A.; Gerlach, Anne Faricy

    2003-01-01

    Objectives. This study described the food environment in 20 Minnesota secondary schools. Methods. Data were collected on school food policies and the availability and nutritional content of foods in school à la carte (ALC) areas and vending machines (VMs). Results. Approximately 36% and 35% of foods in ALC areas and in VMs, respectively, met the lower-fat criterion (≤ 5.5 fat grams/serving). The chips/crackers category constituted the largest share of ALC foods (11.5%). The median number of VMs per school was 12 (4 soft drink, 2 snack, 5 other). Few school food policies were reported. Conclusions. The availability of healthful foods and beverages in schools as well as school food policies that foster healthful food choices among students needs greater attention. PMID:12835203

  10. Magnetic studies of dusts in the urban environment

    International Nuclear Information System (INIS)

    Xie, S.

    2000-12-01

    Dusts are one of the major public health concerns in the urban environment. This study investigates the application of magnetic techniques in the studies of urban dust pollution. Measurements of magnetic properties, element concentrations, and the organic matter content were carried out on Liverpool (UK) street dust and/or Bootle (UK) deposited dust. Mixed dominant ferrimagnetic phases are found in Liverpool street dust although magnetite is probably a major one. The partial susceptibility technique is able to model the contributions of main magnetic components satisfactorily in Liverpool street dust. There are similar spatial distributions for some measurements, such as χLF and Pb, whilst there are different patterns for some measurements, such as χLF and the organic matter content. There are good linear correlations between the organic matter content and some magnetic mineral concentration-related parameters for < 1mm (bulk) samples. Among them, frequency dependent susceptibility (χFD) shows the highest correlation coefficient value. χFD percentage demonstrates a significant correlation with the organic matter content for size fraction and bulk samples. This suggests that re-entrainment of soil is probably a major source of the organic material present in street dust. The ratio χARM /SIRM shows a highly significant correlation with the organic matter content for <150μm fraction samples. The study demonstrates that the simple, rapid, and non-destructive magnetic measurements may be used as proxies for the organic matter content in street dust. Associations between magnetic properties and element concentrations are investigated by using correlation analysis and factor analysis, which may be a potential approach for source identification of magnetic material in the environment. The study suggests that ferrimagnetic minerals are the dominant magnetic component in Bootle dust samples. Both studied sites show similar magnetic properties, but they can be

  11. Geographic patterns of cigarette butt waste in the urban environment.

    Science.gov (United States)

    Marah, Maacah; Novotny, Thomas E

    2011-05-01

    This reports the initial phase of a study to quantify the spatial pattern of cigarette butt waste in an urban environment. Geographic Information Systems (GIS) was used to create a weighted overlay analysis model which was then applied to the locations of businesses where cigarettes are sold or are likely to be consumed and venues where higher concentrations of butts may be deposited. The model's utility was tested using a small-scale litter audit in three zip codes of San Diego, California. We found that cigarette butt waste is highly concentrated around businesses where cigarettes are sold or consumed. The mean number of butts for predicted high waste sites was 38.1 (SD 18.87), for predicted low waste sites mean 4.8 (SD 5.9), psales and consumption. A GIS and weighted overlay model may be a useful tool in predicting urban locations of greater and lesser amounts of cigarette butt waste. These data can in turn be used to develop economic cost studies and plan mitigation strategies in urban communities.

  12. Assessing measurement uncertainty in meteorology in urban environments

    International Nuclear Information System (INIS)

    Curci, S; Lavecchia, C; Frustaci, G; Pilati, S; Paganelli, C; Paolini, R

    2017-01-01

    Measurement uncertainty in meteorology has been addressed in a number of recent projects. In urban environments, uncertainty is also affected by local effects which are more difficult to deal with than for synoptic stations. In Italy, beginning in 2010, an urban meteorological network (Climate Network ® ) was designed, set up and managed at national level according to high metrological standards and homogeneity criteria to support energy applications. The availability of such a high-quality operative automatic weather station network represents an opportunity to investigate the effects of station siting and sensor exposure and to estimate the related measurement uncertainty. An extended metadata set was established for the stations in Milan, including siting and exposure details. Statistical analysis on an almost 3-year-long operational period assessed network homogeneity, quality and reliability. Deviations from reference mean values were then evaluated in selected low-gradient local weather situations in order to investigate siting and exposure effects. In this paper the methodology is depicted and preliminary results of its application to air temperature discussed; this allowed the setting of an upper limit of 1 °C for the added measurement uncertainty at the top of the urban canopy layer. (paper)

  13. Assessing measurement uncertainty in meteorology in urban environments

    Science.gov (United States)

    Curci, S.; Lavecchia, C.; Frustaci, G.; Paolini, R.; Pilati, S.; Paganelli, C.

    2017-10-01

    Measurement uncertainty in meteorology has been addressed in a number of recent projects. In urban environments, uncertainty is also affected by local effects which are more difficult to deal with than for synoptic stations. In Italy, beginning in 2010, an urban meteorological network (Climate Network®) was designed, set up and managed at national level according to high metrological standards and homogeneity criteria to support energy applications. The availability of such a high-quality operative automatic weather station network represents an opportunity to investigate the effects of station siting and sensor exposure and to estimate the related measurement uncertainty. An extended metadata set was established for the stations in Milan, including siting and exposure details. Statistical analysis on an almost 3-year-long operational period assessed network homogeneity, quality and reliability. Deviations from reference mean values were then evaluated in selected low-gradient local weather situations in order to investigate siting and exposure effects. In this paper the methodology is depicted and preliminary results of its application to air temperature discussed; this allowed the setting of an upper limit of 1 °C for the added measurement uncertainty at the top of the urban canopy layer.

  14. Lead and cadmium in indoor air and the urban environment

    International Nuclear Information System (INIS)

    Komarnicki, Guenter J.K.

    2005-01-01

    The present study was conducted to find potential terrestrial biomonitors for heavy metals in indoor air in an urban environment. TSP, PM 10 , and PM 2.5 were collected in three retirement facilities in the urban area of Vienna. In addition, particulate matter and soil, vegetation, and isopods (Porcellio scaber L.) were collected in the adjacent garden areas. Aerosols were sampled with a low-volume air sampler. The sampled materials were wet ashed and total lead and cadmium contents were determined. Water-soluble heavy metal concentrations were measured in aqueous extracts from air exposed filters, soil, and vegetation. Lead and cadmium were analyzed by graphite furnace AAS. Lead contents in the vegetation were inferred from water-soluble lead in soils. Lead in isopods generally reflected the contents in vegetation. Cadmium in plants probably derived from soil solutions as well as from atmospheric input. Isopods reflected the total cadmium contents in soils. Particulate matter was dominated by PM 2.5 , both with respect to mass concentrations and to heavy metal contents. The indoor aerosol was found to be influenced by human activity, indoor sources, and outdoor particles. Relationships between indoor airborne heavy metals and the contents in vegetation (lead and cadmium: positive) and isopods (lead: negative) were identified to have the potential for biomonitoring indoor air quality. - Urban vegetation and isopods are potential indicators for indoor aerial heavy metals

  15. Neighborhood food environments and Body Mass Index: the importance of in-store contents.

    Science.gov (United States)

    Rose, Donald; Hutchinson, Paul L; Bodor, J Nicholas; Swalm, Chris M; Farley, Thomas A; Cohen, Deborah A; Rice, Janet C

    2009-09-01

    Most public health studies on the neighborhood food environment have focused on types of stores and their geographic placement, yet marketing research has long documented the influence of in-store shelf-space on consumer behavior. This paper combines these two strands of research to test whether the aggregate availability of specific foods in a neighborhood is associated with the BMIs of its residents. Fielded from October 2004 to August 2005, this study combines mapping of retail food outlets, in-store surveys, and telephone interviews of residents from 103 randomly sampled urban census tracts in southeastern Louisiana. Linear shelf-space of fruits, vegetables, and energy-dense snack foods was measured in 307 food stores in the study tracts. Residential addresses, demographic information, and heights and weights were obtained from 1243 respondents through telephone interviews. Cumulative shelf-space of foods within defined distances of each respondent was calculated using observations from the in-store survey and probability-based assignments of shelf-space to all unobserved stores in the area. After controlling for sociodemographic variables, income, and car ownership, regression analysis, conducted in 2008, showed that cumulative shelf-space availability of energy-dense snack foods was positively, although modestly, associated with BMI. A 100-meter increase in shelf-space of these foods within 1 kilometer of a respondent's household was associated with an additional 0.1 BMI points. Fruit and vegetable shelf-space was not significantly related to BMI. Interventions that seek to improve the neighborhood food environment may need to focus on more than just increasing access to healthy foods, because the results suggest that the availability of energy-dense snack foods plays a role in weight status.

  16. The food environment and adult obesity in US metropolitan areas.

    Science.gov (United States)

    Michimi, Akihiko; Wimberly, Michael C

    2015-11-26

    This research examines the larger-scale associations between obesity and food environments in metropolitan areas in the United States (US). The US Census County Business Patterns dataset for 2011 was used to construct various indices of food environments for selected metropolitan areas. The numbers of employees engaged in supermarkets, convenience stores, full service restaurants, fast food restaurants, and snack/coffee shops were standardised using the location quotients, and factor analysis was used to produce two uncorrelated factors measuring food environments. Data on obesity were obtained from the 2011 Behavioral Risk Factor Surveillance System. Individual level obesity measures were linked to the metropolitan area level food environment factors. Models were fitted using generalised estimating equations to control for metropolitan area level intra-correlation and individual level sociodemographic characteristics. It was found that adults residing in cities with a large share of supermarket and full-service restaurant workers were less likely to be obese, while adults residing in cities with a large share of convenience store and fast food restaurant workers were more likely to be obese. Supermarkets and full-service restaurant workers are concentrated in the Northeast and West of the US, where obesity prevalence is relatively lower, while convenience stores and fast-food restaurant workers are concentrated in the South and Midwest, where obesity prevalence is relatively higher. The food environment landscapes measured at the metropolitan area level explain the continental-scale patterns of obesity prevalence. The types of food that are readily available and widely served may translate into obesity disparities across metropolitan areas.

  17. Do GIS-derived measures of fast food retailers convey perceived fast food opportunities? Implications for food environment assessment

    Science.gov (United States)

    Barnes, Timothy L.; Colabianchi, Natalie; Freedman, Darcy A.; Bell, Bethany A.; Liese, Angela D.

    2018-01-01

    Purpose Geographic information systems (GISs) have been used to define fast food availability, with higher availability perhaps promoting poorer quality diets. Alternative measures involve perceptions; however, few studies have examined associations between GIS-derived and perceived measures of the food environment. Methods Telephone surveys of 705 participants within an eight-county region in South Carolina were analyzed using logistic regression to examine relationships between geographic presence of and distance to various types of food retailers and perceived fast food availability. Results The mean distance to the nearest fast food restaurant was 6.1 miles, with 16% of participants having a fast food restaurant within 1 mile of home. The geographic presence of and distance to all food retailer types were significantly associated with perceived availability of fast food in unadjusted models. After adjustment, only the presence of a fast food restaurant or pharmacy was significantly associated with greater odds of higher perceived availability of fast food. Greater odds of lower perceived availability of fast food were observed with the presence of a dollar store and increasing distance to the nearest supermarket or pharmacy. Conclusions Measures of fast food availability, whether objective or perceived, may not be interchangeable. Researchers should carefully decide on the appropriate measurement tool—GIS-derived or perceived—in food environment studies. PMID:27617371

  18. Do GIS-derived measures of fast food retailers convey perceived fast food opportunities? Implications for food environment assessment.

    Science.gov (United States)

    Barnes, Timothy L; Colabianchi, Natalie; Freedman, Darcy A; Bell, Bethany A; Liese, Angela D

    2017-01-01

    Geographic information systems (GISs) have been used to define fast food availability, with higher availability perhaps promoting poorer quality diets. Alternative measures involve perceptions; however, few studies have examined associations between GIS-derived and perceived measures of the food environment. Telephone surveys of 705 participants within an eight-county region in South Carolina were analyzed using logistic regression to examine relationships between geographic presence of and distance to various types of food retailers and perceived fast food availability. The mean distance to the nearest fast food restaurant was 6.1 miles, with 16% of participants having a fast food restaurant within 1 mile of home. The geographic presence of and distance to all food retailer types were significantly associated with perceived availability of fast food in unadjusted models. After adjustment, only the presence of a fast food restaurant or pharmacy was significantly associated with greater odds of higher perceived availability of fast food. Greater odds of lower perceived availability of fast food were observed with the presence of a dollar store and increasing distance to the nearest supermarket or pharmacy. Measures of fast food availability, whether objective or perceived, may not be interchangeable. Researchers should carefully decide on the appropriate measurement tool-GIS-derived or perceived-in food environment studies. Copyright © 2016 Elsevier Inc. All rights reserved.

  19. When Vacant Lots Become Urban Gardens: Characterizing the Perceived and Actual Food Safety Concerns of Urban Agriculture in Ohio.

    Science.gov (United States)

    Kaiser, Michelle L; Williams, Michele L; Basta, Nicholas; Hand, Michelle; Huber, Sarah

    2015-11-01

    This study was intended to characterize the perceived risks of urban agriculture by residents of four low-income neighborhoods in which the potential exists for further urban agriculture development and to provide data to support whether any chemical hazards and foodborne pathogens as potential food safety hazards were present. Sixty-seven residents participated in focus groups related to environmental health, food security, and urban gardening. In addition, soils from six locations were tested. Residents expressed interest in the development of urban gardens to improve access to healthy, fresh produce, but they had concerns about soil quality. Soils were contaminated with lead (Pb), zinc, cadmium (Cd), and copper, but not arsenic or chromium. Results from our study suggest paint was the main source of soil contamination. Detectable polyaromatic hydrocarbon (PAH) levels in urban soils were well below levels of concern. These urban soils will require further management to reduce Pb and possibly Cd bioavailability to decrease the potential for uptake into food crops. Although the number of locations in this study is limited, results suggest lower levels of soil contaminants at well-established gardens. Soil tillage associated with long-term gardening could have diluted the soil metal contaminants by mixing the contaminants with clean soil. Also, lower PAH levels in long-term gardening could be due to enhanced microbial activity and PAH degradation, dilution, or both due to mixing, similar to metals. No foodborne pathogen targets were detected by PCR from any of the soils. Residents expressed the need for clearness regarding soil quality and gardening practices in their neighborhoods to consume food grown in these urban areas. Results from this study suggest long-term gardening has the potential to reduce soil contaminants and their potential threat to food quality and human health and to improve access to fresh produce in low-income urban communities.

  20. Radioactive contamination in environment and food in Poland in 1992

    International Nuclear Information System (INIS)

    Grabowski, D.; Muszynski, W.; Petrykowska, M.; Rubel, B.; Smagala, G.; Wilgos, J.

    1993-01-01

    The level analysis of the level of radioactive contamination in environment and food samples was carried out in Poland in 1992. The results were compared to the data from 1985-1991 period. Since the Chernobyl accident gradual decrease of contamination level has been stated. The gamma dose rate and the contamination of air, fallout, tap and surface water were at the level of 1985. Still higher contamination level of cesium isotopes in soil has been reported and as a consequence food contamination was higher particularly the animal food. Actually, the source of additional dose is ingestion of artificial isotopes with food as a result of food contamination. The average effective dose equivalent, due to the contaminated food consumption, was estimated at the level 15 μSv for a Pole in 1992. (author). 13 refs, 6 figs, 20 tabs

  1. Food Labeling and Consumer Associations with Health, Safety, and Environment.

    Science.gov (United States)

    Sax, Joanna K; Doran, Neal

    2016-12-01

    The food supply is complicated and consumers are increasingly calling for labeling on food to be more informative. In particular, consumers are asking for the labeling of food derived from genetically modified organisms (GMO) based on health, safety, and environmental concerns. At issue is whether the labels that are sought would accurately provide the information desired. The present study examined consumer (n = 181) perceptions of health, safety and the environment for foods labeled organic, natural, fat free or low fat, GMO, or non-GMO. Findings indicated that respondents consistently believed that foods labeled GMO are less healthy, safe and environmentally-friendly compared to all other labels (ps labels mean something to consumers, but that a disconnect may exist between the meaning associated with the label and the scientific consensus for GMO food. These findings may provide insight for the development of labels that provide information that consumers seek.

  2. FEAST: Empowering Community Residents to Use Technology to Assess and Advocate for Healthy Food Environments.

    Science.gov (United States)

    Sheats, Jylana L; Winter, Sandra J; Romero, Priscilla Padilla; King, Abby C

    2017-04-01

    Creating environments that support healthy eating is important for successful aging, particularly in light of the growing population of older adults in the United States. There is an urgent need to identify innovative upstream solutions to barriers experienced by older adults in accessing and buying healthy food. FEAST (Food Environment Assessment STudy) is an effort that is part of the global Our Voice initiative, which utilizes a combination of technology and community-engaged methods to empower citizen scientists (i.e., community residents) to: (1) use the Healthy Neighborhood Discovery Tool (Discovery Tool) mobile application to collect data (geocoded photos, audio narratives) about aspects of their environment that facilitate or hinder healthy living; and (2) use findings to advocate for change in partnership with local decision and policy makers. In FEAST, 23 racially/ethnically diverse, low-income, and food-insecure older adults residing in urban, North San Mateo County, CA, were recruited to use the Discovery Tool to examine factors that facilitated or hindered their access to food as well as their food-related behaviors. Participants collectively reviewed data retrieved from the Discovery Tool and identified and prioritized important, yet feasible, issues to address. Access to affordable healthy food and transportation were identified as the major barriers to eating healthfully and navigating their neighborhood food environments. Subsequently, participants were trained in advocacy skills and shared their findings with relevant decision and policymakers, who in turn dispelled myths and discussed and shared resources to address relevant community needs. Proximal and distal effects of the community-engaged process at 3, 6, 12, and 24 months were documented and revealed individual-, community-, and policy-level impacts. Finally, FEAST contributes to the evidence on multi-level challenges that low-income, racially/ethnically diverse older adults experience

  3. urban dietary heavy metal intake from protein foods and vegetables

    African Journals Online (AJOL)

    Mgina

    Contamination of food and food products by heavy metals has made dietary intake as one of the ... metals cadmium, copper, lead and zinc from protein-foods (beans, meat, fish, milk) and green ..... on food additives Technical report series. No.

  4. Toward humanoid robots for operations in complex urban environments

    Science.gov (United States)

    Pratt, Jerry E.; Neuhaus, Peter; Johnson, Matthew; Carff, John; Krupp, Ben

    2010-04-01

    Many infantry operations in urban environments, such as building clearing, are extremely dangerous and difficult and often result in high casualty rates. Despite the fast pace of technological progress in many other areas, the tactics and technology deployed for many of these dangerous urban operation have not changed much in the last 50 years. While robots have been extremely useful for improvised explosive device (IED) detonation, under-vehicle inspection, surveillance, and cave exploration, there is still no fieldable robot that can operate effectively in cluttered streets and inside buildings. Developing a fieldable robot that can maneuver in complex urban environments is challenging due to narrow corridors, stairs, rubble, doors and cluttered doorways, and other obstacles. Typical wheeled and tracked robots have trouble getting through most of these obstacles. A bipedal humanoid is ideally shaped for many of these obstacles because its legs are long and skinny. Therefore it has the potential to step over large barriers, gaps, rocks, and steps, yet squeeze through narrow passageways, and through narrow doorways. By being able to walk with one foot directly in front of the other, humanoids also have the potential to walk over narrow "balance beam" style objects and can cross a narrow row of stepping stones. We describe some recent advances in humanoid robots, particularly recovery from disturbances, such as pushes and walking over rough terrain. Our disturbance recovery algorithms are based on the concept of Capture Points. An N-Step Capture Point is a point on the ground in which a legged robot can step to in order to stop in N steps. The N-Step Capture Region is the set of all N-Step Capture Points. In order to walk without falling, a legged robot must step somewhere in the intersection between an N-Step Capture Region and the available footholds on the ground. We present results of push recovery using Capture Points on our humanoid robot M2V2.

  5. Urban Household Characteristics and Dietary Diversity: An Analysis of Food Security in Accra, Ghana.

    Science.gov (United States)

    Codjoe, Samuel Nii Ardey; Okutu, David; Abu, Mumuni

    2016-06-01

    The world's population is increasingly becoming urbanized. If the current urban growth rate is to continue, new and unprecedented challenges for food security will be inevitable. Dietary diversity has been used to ascertain food security status albeit at the multicountry and country levels. Thus, household-level studies in urban settings, particularly in sub-Sahara African, are few. Yet, it is imperative that assessments of food security are undertaken particularly in urban settings, due to the projected fast rate of urbanization and the challenges of attaining food security. To examine household characteristics and dietary diversity. The study uses data from 452 households from the second round of the Regional Institute for Population Studies (RIPS) EDULINK urban poverty and health study. Bivariate and multivariate analyses are undertaken. Mean dietary diversity for all households is 6.8. Vegetables have the highest diversity, followed by cereal-based and grain products. Household characteristics that have statistically significant associations with dietary diversity include sex and level of education of household head, household wealth quintile, and source of food. There is high dietary diversity in the study communities of Accra but low consumption of foods rich in micronutrient, such as fruits and milk/dairy products. The study brings to fore issues related to resource-disadvantaged entities of the urban system, namely, females, poor households, and the non-educated who have food insecurity problems. © The Author(s) 2016.

  6. Urban Cultivation and Its Contributions to Sustainability: Nibbles of Food but Oodles of Social Capital

    Directory of Open Access Journals (Sweden)

    George Martin

    2016-04-01

    Full Text Available The contemporary interest in urban cultivation in the global North as a component of sustainable food production warrants assessment of both its quantitative and qualitative roles. This exploratory study weighs the nutritional, ecological, and social sustainability contributions of urban agriculture by examining three cases—a community garden in the core of New York, a community farm on the edge of London, and an agricultural park on the periphery of San Francisco. Our field analysis of these sites, confirmed by generic estimates, shows very low food outputs relative to the populations of their catchment areas; the great share of urban food will continue to come from multiple foodsheds beyond urban peripheries, often far beyond. Cultivation is a more appropriate designation than agriculture for urban food growing because its sustainability benefits are more social than agronomic or ecological. A major potential benefit lies in enhancing the ecological knowledge of urbanites, including an appreciation of the role that organic food may play in promoting both sustainability and health. This study illustrates how benefits differ according to local conditions, including population density and demographics, operational scale, soil quality, and access to labor and consumers. Recognizing the real benefits, including the promotion of sustainable diets, could enable urban food growing to be developed as a component of regional foodsheds to improve the sustainability and resilience of food supply, and to further the process of public co-production of new forms of urban conviviality and wellbeing.

  7. Indian adolescents' perceptions of the home food environment.

    Science.gov (United States)

    Rathi, Neha; Riddell, Lynn; Worsley, Anthony

    2018-01-22

    The home food environment has the potential to influence the eating behaviour of adolescents. This investigation aimed to understand Indian adolescents' perspectives of their home food environments. Adolescents aged 14-16 years (n = 1026, 65.3% girls) attending private secondary schools in Kolkata completed a paper-based questionnaire during school time which included questions about family food rules, availability and accessibility of foods at home, and domestic cooking responsibility. Boys' and girls' opinions and experiences were compared through cross-tabulation analyses. Almost all the adolescents reported that fruits (91.6%) and vegetables (95.7%) were always available in their homes. Approximately two-fifths reported that sugar-sweetened beverages (36.2%) and salty snack foods (38.0%) were readily available. In 56.1% households, adolescents were expected to follow certain food rules during mealtimes (e.g. not talking with my mouth full). The majority of the respondents (80.4%) identified mothers as the primary meal providers, only a minority reported that fathers (5.1%) were responsible for preparation of family meals. This understanding of the family-environmental determinants of adolescent dietary habits provides useful directions for nutrition promotion interventions. Health and educational professionals associated with adolescents could communicate about the development of healthy home food environments to provide positive health benefits for adolescents and their families.

  8. Urban Heat Islands (UHI) and the influence of city parks within the urban environment.

    Science.gov (United States)

    Garcia, W.; Shandas, V.; Voelkel, J.; Espinoza, D.

    2016-12-01

    Urban Heat Islands (UHI) and the influence of city parks within the urban environment.As cities grow outward and their populations increase the Urban Heat Island (UHI) phenomena becomes an ever more important topic to reducing environmental stressors. When UHI combines with human sensitivities such as pre-existing health conditions, and other vulnerabilities, finding an effective way to cool our cities is a matter of life and death. One way to cool an area is to introduce vegetation; which is abundant is in city parks. This study measures the cooling effect and temperature gradient of city parks; characterizing the relationship between the cooling effects within parks and surrounding neighborhoods. Past studies of the UHI are largely based on satellite images and, more recently, car traverses across that describe the ambient temperatures. The present project aims to understand the effects of parks on the UHI by asking two research questions: (1) how do the physical characteristics and designs of city parks impact the variation in ambient temperatures? And (2) what effect does the park have on cooling the surrounding neighborhoods? We address these questions by using a bicycle mounted with a temperature probe, and a series of geospatial analytics. The bicycle collects temperature data every one second, and the traverse intervals are an hour long to prevent normal fluctuations of daily temperature. Preliminary analysis shows that there is a temperature gradient within the parks (Figure 1). Further, the average temperature of the urban park could cool the surrounding area by upwards of 2°C, depending on the physical characteristics of then park and neighborhood. Our results suggest that the role of smaller parks and their design can reduce heat stress particularly among the vulnerable populations. These results can help urban planners make informed decisions when developing future city infrastructure.

  9. Biofuels. Environment, technology and food security

    International Nuclear Information System (INIS)

    Escobar, Jose C.; Lora, Electo S.; Venturini, Osvaldo J.; Yanez, Edgar E.; Castillo, Edgar F.; Almazan, Oscar

    2009-01-01

    The imminent decline of the world's oil production, its high market prices and environmental impacts have made the production of biofuels to reach unprecedent volumes over the last 10 years. This is why there have been intense debates among international organizations and political leaders in order to discuss the impacts of the biofuel use intensification. Besides assessing the causes of the rise in the demand and production of biofuels, this paper also shows the state of the art of their world's current production. It is also discussed different vegetable raw materials sources and technological paths to produce biofuels, as well as issues regarding production cost and the relation of their economic feasibility with oil international prices. The environmental impacts of programs that encourage biofuel production, farmland land requirements and the impacts on food production are also discussed, considering the life cycle analysis (LCA) as a tool. It is concluded that the rise in the use of biofuels is inevitable and that international cooperation, regulations and certification mechanisms must be established regarding the use of land, the mitigation of environmental and social impacts caused by biofuel production. It is also mandatory to establish appropriate working conditions and decent remuneration for workers of the biofuels production chain. (author)

  10. Keeping up appearances: Perceptions of street food safety in urban Kumasi, Ghana

    DEFF Research Database (Denmark)

    Rheinländer, Thilde; Olsen, Mette; Bakang, John Abubakar

    2008-01-01

    hygiene practices such as hand washing, cleaning of utensils, washing of raw vegetables, and quality of ingredients. Instead, four main food selection criteria could be identified and were related to (1) aesthetic appearance of food and food stand, (2) appearance of the food vendor, (3) interpersonal...... observations and several interviews were carried out with case vendors. In addition, street interviews and Focus Group Discussions were carried out with street food customers. The study found that although vendors and consumers demonstrated basic knowledge of food safety, the criteria did not emphasize basic......The growing street food sector in low-income countries offers easy access to inexpensive food as well as new job opportunities for urban residents. While this development is positive in many ways, it also presents new public health challenges for the urban population. Safe food hygiene is difficult...

  11. The home food environment of overweight gatekeepers in the Netherlands.

    Science.gov (United States)

    Poelman, Maartje P; de Vet, Emely; Velema, Elizabeth; Seidell, Jacob C; Steenhuis, Ingrid H M

    2015-07-01

    The aim of the present study was to gain insight into (i) processed snack-food availability, (ii) processed snack-food salience and (iii) the size of dinnerware among households with overweight gatekeepers. Moreover, associations between gatekeepers' characteristics and in-home observations were determined. A cross-sectional observation of home food environments was conducted as part of a baseline measurement of a larger study. Home food environments of overweight and obese gatekeepers in the Netherlands. Household gatekeepers (n 278). Mean household size of the gatekeepers was 3.0 (SD 1.3) persons. Mean age of the gatekeepers was 45.7 (SD 9.2) years, 34.9% were overweight and 65.1% were obese. Of the gatekeepers, 20.9% had a low level of education and 42.7% had a high level of education. In 70% of the households, eight or more packages of processed snack foods were present. In 54% of the households, processed snack foods were stored close to non-processed food items and in 78% of households close to non-food items. In 33% of the households, processed snack foods were visible in the kitchen and in 15% of the households processed snack foods were visible in the living room. Of the dinnerware items, 14% (plates), 57% (glasses), 78% (dessert bowls), 67% (soup bowls) and 58% (mugs) were larger than the reference norms of the Netherlands Nutrition Centre Foundation. Older gatekeepers used significantly smaller dinnerware than younger gatekeepers. Environmental factors endorsing overconsumption are commonly present in the home environments of overweight people and could lead to unplanned eating or passive overconsumption.

  12. Ecological determinants of health: food and environment on human health.

    Science.gov (United States)

    Li, Alice M L

    2017-04-01

    Human health and diseases are determined by many complex factors. Health threats from the human-animal-ecosystems interface (HAEI) and zoonotic diseases (zoonoses) impose an increasing risk continuously to public health, from those emerging pathogens transmitted through contact with animals, food, water and contaminated environments. Immense challenges forced on the ecological perspectives on food and the eco-environments, including aquaculture, agriculture and the entire food systems. Impacts of food and eco-environments on human health will be examined amongst the importance of human interventions for intended purposes in lowering the adverse effects on the biodiversity. The complexity of relevant conditions defined as factors contributing to the ecological determinants of health will be illuminated from different perspectives based on concepts, citations, examples and models, in conjunction with harmful consequential effects of human-induced disturbances to our environments and food systems, together with the burdens from ecosystem disruption, environmental hazards and loss of ecosystem functions. The eco-health literacy should be further promoting under the "One Health" vision, with "One World" concept under Ecological Public Health Model for sustaining our environments and the planet earth for all beings, which is coincidentally echoing Confucian's theory for the environmental ethics of ecological harmony.

  13. Species-Dependent Effects of the Urban Environment on Fatty Acid Composition and Oxidative Stress in Birds

    Directory of Open Access Journals (Sweden)

    Caroline Isaksson

    2017-05-01

    Full Text Available Ecological impacts of urbanization include the loss of biodiversity and changes in species composition and population densities. However, how the urban environment affects fundamental physiological parameters is largely unknown. Here, we investigated physiological components related to health and nutrition, namely, plasma fatty acids (FA and lipid peroxidation at inter-habitat and interspecific levels. Specifically, we compared four passerine bird species—the great tit (Parus major, the blue tit (Cyanistes caeruleus, the house sparrow (Passer domesticus, and the tree sparrow (P. montanus—from urban and rural environments. Significant interactions between species and habitat were revealed for the majority of the FAs. Interestingly, the observed inter-habitat variation in FAs was frequently in opposite directions when comparing species from the two families (tits, Paridae; sparrows, Passeridae. These patterns suggest that sparrows and tits feed on different food sources, or modulate their FA metabolism differently, across the urban-rural gradient. By using canonical discriminant analyses (CDA, we further demonstrated species-specific signals in FA composition, with misclassification of species being <1% within habitats and <7% between habitats. Finally, the urban-rural FA differences between species and families were manifested in two indices of health. Firstly, urban blue tits had a higher total ω-6/ω-3 polyunsaturated FA ratio than rural conspecifics, which is believed to increase inflammatory responses. Secondly, urban sparrows of both species showed higher lipid peroxidation indices (indicating a higher susceptibility to lipid peroxidation if exposed to pro-oxidants, and consequently, a higher level of lipid peroxidation compared to their rural conspecifics. Collectively, the species- and habitat-specific differences in plasma FA composition, which are linked to nutrition and metabolism, suggest that the urban environment affect tits and

  14. The airborne metagenome in an indoor urban environment.

    Directory of Open Access Journals (Sweden)

    Susannah G Tringe

    Full Text Available The indoor atmosphere is an ecological unit that impacts on public health. To investigate the composition of organisms in this space, we applied culture-independent approaches to microbes harvested from the air of two densely populated urban buildings, from which we analyzed 80 megabases genomic DNA sequence and 6000 16S rDNA clones. The air microbiota is primarily bacteria, including potential opportunistic pathogens commonly isolated from human-inhabited environments such as hospitals, but none of the data contain matches to virulent pathogens or bioterror agents. Comparison of air samples with each other and nearby environments suggested that the indoor air microbes are not random transients from surrounding outdoor environments, but rather originate from indoor niches. Sequence annotation by gene function revealed specific adaptive capabilities enriched in the air environment, including genes potentially involved in resistance to desiccation and oxidative damage. This baseline index of air microbiota will be valuable for improving designs of surveillance for natural or man-made release of virulent pathogens.

  15. The Airborne Metagenome in an Indoor Urban Environment

    Energy Technology Data Exchange (ETDEWEB)

    Tringe, Susannah; Zhang, Tao; Liu, Xuguo; Yu, Yiting; Lee, Wah Heng; Yap, Jennifer; Yao, Fei; Suan, Sim Tiow; Ing, Seah Keng; Haynes, Matthew; Rohwer, Forest; Wei, Chia Lin; Tan, Patrick; Bristow, James; Rubin, Edward M.; Ruan, Yijun

    2008-02-12

    The indoor atmosphere is an ecological unit that impacts on public health. To investigate the composition of organisms in this space, we applied culture-independent approaches to microbes harvested from the air of two densely populated urban buildings, from which we analyzed 80 megabases genomic DNA sequence and 6000 16S rDNA clones. The air microbiota is primarily bacteria, including potential opportunistic pathogens commonly isolated from human-inhabited environments such as hospitals, but none of the data contain matches to virulent pathogens or bioterror agents. Comparison of air samples with each other and nearby environments suggested that the indoor air microbes are not random transients from surrounding outdoor environments, but rather originate from indoor niches. Sequence annotation by gene function revealed specific adaptive capabilities enriched in the air environment, including genes potentially involved in resistance to desiccation and oxidative damage. This baseline index of air microbiota will be valuable for improving designs of surveillance for natural or man-made release of virulent pathogens.

  16. Scintillometry in urban and complex environments: a review

    International Nuclear Information System (INIS)

    Ward, Helen C

    2017-01-01

    Knowledge of turbulent exchange in complex environments is relevant to a wide range of hydro-meteorological applications. Observations are required to improve understanding and inform model parameterisations but the very nature of complex environments presents challenges for measurements. Scintillometry offers several advantages as a technique for providing spatially-integrated turbulence data (structure parameters and fluxes), particularly in areas that would be impracticable to monitor using eddy covariance, such as across a valley, above a city or over heterogeneous landscapes. Despite much of scintillometry theory assuming flat, homogeneous surfaces and ideal conditions, over the last 20 years scintillometers have been deployed in increasingly complex locations, including urban and mountainous areas. This review draws together fundamental and applied research in complex environments, to assess what has been learnt, summarise the state-of-the-art and identify key areas for future research. Particular attention is given to evidence, or relative lack thereof, of the impact of complex environments on scintillometer data. Practical and theoretical considerations to account for the effects of complexity are discussed, with the aim of developing measurement capability towards more reliable and accurate observations in future. The usefulness of structure parameter measurements (in addition to fluxes, which must be derived using similarity theory) should not be overlooked, particularly when comparing or combining scintillometry with other measurement techniques and model simulations. (paper)

  17. Fast food restaurant locations according to socioeconomic disadvantage, urban-regional locality, and schools within Victoria, Australia.

    Science.gov (United States)

    Thornton, Lukar E; Lamb, Karen E; Ball, Kylie

    2016-12-01

    Features of the built environment provide opportunities to engage in both healthy and unhealthy behaviours. Access to a high number of fast food restaurants may encourage greater consumption of fast food products. The distribution of fast food restaurants at a state-level has not previously been reported in Australia. Using the location of 537 fast food restaurants from four major chains (McDonald׳s, KFC, Hungry Jacks, and Red Rooster), this study examined fast food restaurant locations across the state of Victoria relative to area-level disadvantage, urban-regional locality (classified as Major Cities, Inner Regional, or Outer Regional), and around schools. Findings revealed greater locational access to fast food restaurants in more socioeconomically disadvantaged areas (compared to areas with lower levels of disadvantage), nearby to secondary schools (compared to primary schools), and nearby to primary and secondary schools within the most disadvantaged areas of the major city region (compared to primary and secondary schools in areas with lower levels of disadvantage). Adjusted models showed no significant difference in location according to urban-regional locality. Knowledge of the distribution of fast food restaurants in Australia will assist local authorities to target potential policy mechanisms, such as planning regulations, where they are most needed.

  18. Analysis of human factors on urban heat island and simulation of urban thermal environment in Lanzhou city, China

    Science.gov (United States)

    Pan, Jinghu

    2015-01-01

    Urban heat island (UHI) effect is a global phenomenon caused by urbanization. Because of the number and complexity of factors contributing to the urban thermal environment, traditional statistical methods are insufficient for acquiring data and analyzing the impact of human activities on the thermal environment, especially for identifying which factors are dominant. The UHI elements were extracted using thermal infrared remote sensing data to retrieve the land surface temperatures of Lanzhou city, and then adopting an object-oriented fractal net evolution approach to create an image segmentation of the land surface temperature (LST). The effects of urban expansion on the urban thermal environment were quantitatively analyzed. A comprehensive evaluation system of the urban thermal environment was constructed, the spatial pattern of the urban thermal environment in Lanzhou was assessed, and principal influencing factors were identified using spatial principal component analysis (SPCA) and multisource spatial data. We found that in the last 20 years, the UHI effect in Lanzhou city has been strengthened, as the UHI ratio index has increased from 0.385 in 1993 to 0.579 in 2001 and to 0.653 in 2011. The UHI expansion had a spatiotemporal consistency with the urban expansion. The four major factors that affect the spatial pattern of the urban thermal environment in Lanzhou can be ranked in the following order: landscape configuration, anthropogenic heat release, urban construction, and gradient from man-made to natural land cover. These four together accounted for 91.27% of the variance. A linear model was thus successfully constructed, implying that SPCA is helpful in identifying major contributors to UHI. Regression analysis indicated that the instantaneous LST and the simulated thermal environment have a good linear relationship, the correlation coefficient between the two reached 0.8011, highly significant at a confidence level of 0.001.

  19. Urban agriculture: Growing food in our cities | IDRC - International ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    2012-01-25

    Jan 25, 2012 ... Only since the mid-1990s, however, has the concept of urban agriculture ... IDRC program officer and urban agriculture specialist Luc Mougeot traces ... more research and policy aimed at solving specific problems rather than ...

  20. The neighborhood food environment: sources of historical data on retail food stores

    OpenAIRE

    Gonzalez Alma A; Wang May C; Ritchie Lorrene D; Winkleby Marilyn A

    2006-01-01

    Abstract With the rapidly increasing prevalence of obesity in the United States, and the minimal success of education-based interventions, there is growing interest in understanding the role of the neighborhood food environment in determining dietary behavior. This study, as part of a larger study, identifies historical data on retail food stores, evaluates strengths and limitations of the data for research, and assesses the comparability of historical retail food store data from a government...

  1. Determinants of eating at local and western fast-food venues in an urban Asian population: a mixed methods approach.

    Science.gov (United States)

    Naidoo, Nasheen; van Dam, Rob M; Ng, Sheryl; Tan, Chuen Seng; Chen, Shiqi; Lim, Jia Yi; Chan, Mei Fen; Chew, Ling; Rebello, Salome A

    2017-05-25

    Like several Southeast Asian countries, Singapore has a complex eating-out environment and a rising eating-out prevalence. However the determinants and drivers of eating-out in urban Asian environments are poorly understood. We examined the socio-demographic characteristics of persons who frequently ate away from home in local eateries called hawker centres and Western fast-food restaurants, using data from 1647 Singaporean adults participating in the National Nutrition Survey (NNS) 2010. We also assessed the underlying drivers of eating out and evaluated if these were different for eating at local eateries compared to Western fast-food restaurants using 18 focus group discussions of women (130 women). Participants reported a high eating-out frequency with 77.3% usually eating either breakfast, lunch or dinner at eateries. Main venues for eating-out included hawker centres (61.1% usually ate at least 1 of 3 daily meals at this venue) and school/workplace canteens (20.4%). A minority of participants (1.9%) reported usually eating at Western fast-food restaurants. Younger participants and those of Chinese and Malay ethnicity compared to Indians were more likely to eat at Western fast-food restaurants. Chinese and employed persons were more likely to eat at hawker centres. The ready availability of a large variety of affordable and appealing foods appeared to be a primary driver of eating out, particularly at hawker centres. Our findings highlight the growing importance of eating-out in an urban Asian population where local eating venues play a more dominant role compared with Western fast-food chains. Interventions focusing on improving the food quality at venues for eating out are important to improve the diet of urban Asian populations.

  2. Changing the Food Environment: The French Experience12

    OpenAIRE

    Chauliac, Michel; Hercberg, Serge

    2012-01-01

    The French National Nutrition and Health Program was launched in 2001. To achieve its objectives, 2 main preventive strategies were identified: 1) provide information and education to help individuals make healthy food and physical activity choices; and 2) improve the food and physical environment so that making healthy choices is easier. School regulations have been established to improve the nutritional quality of meals served to children and adolescents, and vending machines have been bann...

  3. Understanding interactions with the food environment: an exploration of supermarket food shopping routines in deprived neighbourhoods.

    Science.gov (United States)

    Thompson, Claire; Cummins, Steven; Brown, Tim; Kyle, Rosemary

    2013-01-01

    Despite a sustained academic interest in the environmental determinants of diet, relatively little is known about the ways in which individuals interact with their neighbourhood food environment and the use of its most important element, the supermarket. This qualitative study explores how residents of deprived neighbourhoods shop for food and how the supermarket environment influences their choices. Go-along interviews were conducted with 26 residents of Sandwell, a uniformly deprived metropolitan borough in the West Midlands, UK. Routine approaches to food shopping are characterised in terms of planning and reliance on the supermarket environment. Four distinct routines are identified: chaotic and reactive; working around the store; item-by-item; and restricted and budgeted. This suggests that residents of deprived neighbourhoods do not have uniform responses to food environments. Responses to supermarket environments appear to be mediated by levels of individual autonomy. A better understanding of how residents of deprived neighbourhoods interact with their food environment may help optimise environmental interventions aimed at improving physical access to food in these places. Copyright © 2012 Elsevier Ltd. All rights reserved.

  4. Differences in Food Environment Perceptions and Spatial Attributes of Food Shopping between Residents of Low and High Food Access Areas

    Science.gov (United States)

    Sohi, Inderbir; Bell, Bethany A.; Liu, Jihong; Battersby, Sarah E.; Liese, Angela D.

    2014-01-01

    Objective To explore potential differences in food shopping behaviors and healthy food availability perceptions between residents living in areas with low and high food access. Design A cross-sectional telephone survey to assess food shopping behaviors and perceptions. Data from an eight-county food environment field census used to define the CDC (Centers for Disease Control and Prevention) healthier food retail tract and USDA ERS (United States Department of Agriculture Economic Research Service) food desert measure. Participants 968 residents in eight South Carolina counties. Main Outcome Measures Residents’ food shopping behaviors and healthy food availability perceptions. Analysis Linear and logistic regression. Results Compared to residents in high food access areas, residents in low food access areas traveled further to their primary food store (USDA ERS: 8.8 vs. 7.1 miles, p=0.03; CDC: 9.2 vs. 6.1 miles, pshopping miles per week; CDC 28.0 vs. 15.4 miles, pshopping access (p<0.001). Conclusions and Implications These findings lend support to ongoing community and policy interventions aimed at reducing food access disparities. PMID:24560861

  5. Sustainability, resilience and governance of an urban food system: a case study of peri-urban Wuhan

    OpenAIRE

    Dolley, Jonathan

    2017-01-01

    While it is clear that urban food systems need to be made resilient so that broader sustainability\\ud goals can be maintained over time, it has been a matter of debate as to how resilience should be\\ud conceptualised when applied to social-ecological systems. Through a case study of peri-urban\\ud Wuhan, this research develops and applies a resilience based conceptual framework for periurban\\ud food systems analysis in order to explore the potential for an enhanced understanding of\\ud resilien...

  6. Field validation of food outlet databases: the Latino food environment in North Carolina, USA.

    Science.gov (United States)

    Rummo, Pasquale E; Albrecht, Sandra S; Gordon-Larsen, Penny

    2015-04-01

    Obtaining valid, reliable measures of food environments that serve Latino communities is important for understanding barriers to healthy eating in this at-risk population. The primary aim of the study was to examine agreement between retail food outlet data from two commercial databases, Nielsen TDLinx (TDLinx) for food stores and Dun & Bradstreet (D&B) for food stores and restaurants, relative to field observations of food stores and restaurants in thirty-one census tracts in Durham County, NC, USA. We also examined differences by proportion of Hispanic population (Spanish language. One hundred and seventy-four food stores and 337 restaurants in Durham County, NC, USA. We found that overall sensitivity of food store listings in TDLinx was higher (64 %) than listings in D&B (55 %). Twenty-five food stores were characterized by auditors as Latino food stores, with 20 % identified in TDLinx, 52 % in D&B and 56 % in both sources. Overall sensitivity of restaurants (68 %) was higher than sensitivity of Latino restaurants (38 %) listed in D&B. Sensitivity did not differ substantially by Hispanic composition of neighbourhoods. Our findings suggest that while TDLinx and D&B commercial data sources perform well for total food stores, they perform less well in identifying small and independent food outlets, including many Latino food stores and restaurants.

  7. Did the Food Environment Cause the Obesity Epidemic?

    Science.gov (United States)

    Hall, Kevin D

    2018-01-01

    Several putative explanations of the obesity epidemic relate to the changing food environment. Individual dietary macronutrients have each been theorized to be the prime culprit for population obesity, but these explanations are unlikely. Rather, obesity probably resulted from changes in the caloric quantity and quality of the food supply in concert with an industrialized food system that produced and marketed convenient, highly processed foods from cheap agricultural inputs. Such foods often contain high amounts of salt, sugar, fat, and flavor additives and are engineered to have supernormal appetitive properties driving increased consumption. Ubiquitous access to convenient and inexpensive food also changed normative eating behavior, with more people snacking, eating in restaurants, and spending less time preparing meals at home. While such changes in the food environment provide a likely explanation of the obesity epidemic, definitive scientific demonstration is hindered by the difficulty in experimentally isolating and manipulating important variables at the population level. Published 2017. This article is a U.S. Government work and is in the public domain in the USA.

  8. Quality of Vegetables Based on Total Phenolic Concentration Is Lower in More Rural Consumer Food Environments in a Rural American State.

    Science.gov (United States)

    Ahmed, Selena; Byker Shanks, Carmen

    2017-08-17

    While daily consumption of fruits and vegetables (FVs) is widely recognized to be associated with supporting nutrition and health, disparities exist in consumer food environments regarding access to high-quality produce based on location. The purpose of this study was to evaluate FV quality using total phenolic (TP) scores (a phytochemical measure for health-promoting attributes, flavor, appearance, and shelf-life) in consumer food environments along a rural to urban continuum in the rural state of Montana, United States. Significant differences were found in the means of the FV TP scores ( p vegetable TP scores ( p vegetable TP scores were highest for the least rural stores and lowest for the most rural stores. Results indicate an access gap to high-quality vegetables in more rural and more health-disparate consumer food environments of Montana compared to urban food environments. Findings highlight that food and nutrition interventions should aim to increase vegetable quality in rural consumer food environments in the state of Montana towards enhancing dietary quality and food choices. Future studies are called for that examine TP scores of a wide range of FVs in diverse food environments globally. Studies are further needed that examine linkages between FV quality, food choices, diets, and health outcomes towards enhancing food environments for public health.

  9. City rats: From rat behaviour to human spatial cognition in urban environments

    OpenAIRE

    David Eilam; Juval Portugali; Osnat Yaski

    2010-01-01

    The structure and shape of an urban environment influence our ability to find our way about in the city^1-2^. Indeed, urban designers who face the challenge of planning environments that facilitate wayfinding^3^, have a consequent need to understand the relations between the urban environment and spatial cognition^4^. Previous studies have suggested that certain qualities of city elements, such as a distinct contrast with the background (e.g. The Eiffel Tower in Paris), or a clear morphology ...

  10. Probabilistic Tracking and Trajectory Planning for Autonomous Ground Vehicles in Urban Environments

    Science.gov (United States)

    2016-03-05

    Vehicles in Urban Environments The views, opinions and/or findings contained in this report are those of the author(s) and should not contrued as an...Pine Tree Road Ithaca, NY 14850 -2820 ABSTRACT Probabilistic Tracking and Trajectory Planning for Autonomous Ground Vehicles in Urban Environments...Probabilistic Anticipation for Autonomous Robots in Urban Environments, IEEE Transactions on Robotics, (04 2014): 0. doi: 10.1109/TRO.2013.2291620 Isaac

  11. Fractal analysis of urban environment: land use and sewer system

    Science.gov (United States)

    Gires, A.; Ochoa Rodriguez, S.; Van Assel, J.; Bruni, G.; Murla Tulys, D.; Wang, L.; Pina, R.; Richard, J.; Ichiba, A.; Willems, P.; Tchiguirinskaia, I.; ten Veldhuis, M. C.; Schertzer, D. J. M.

    2014-12-01

    Land use distribution are usually obtained by automatic processing of satellite and airborne pictures. The complexity of the obtained patterns which are furthermore scale dependent is enhanced in urban environment. This scale dependency is even more visible in a rasterized representation where only a unique class is affected to each pixel. A parameter commonly analysed in urban hydrology is the coefficient of imperviousness, which reflects the proportion of rainfall that will be immediately active in the catchment response. This coefficient is strongly scale dependent with a rasterized representation. This complex behaviour is well grasped with the help of the scale invariant notion of fractal dimension which enables to quantify the space occupied by a geometrical set (here the impervious areas) not only at a single scale but across all scales. This fractal dimension is also compared to the ones computed on the representation of the catchments with the help of operational semi-distributed models. Fractal dimensions of the corresponding sewer systems are also computed and compared with values found in the literature for natural river networks. This methodology is tested on 7 pilot sites of the European NWE Interreg IV RainGain project located in France, Belgium, Netherlands, United-Kingdom and Portugal. Results are compared between all the case study which exhibit different physical features (slope, level of urbanisation, population density...).

  12. External dose rates in coastal urban environments in Brazil

    International Nuclear Information System (INIS)

    Souza, E.M.; Rochedo, E.R.R.; Conti, C.C.

    2015-01-01

    A long term activity aiming on assessing the exposure of the Brazilian population to natural background radiation is being developed at IRD/CNEN. Several research groups within IRD work in this activity, although mostly as a parallel work associated to main research lines followed by researches of the institution. One main activity is related to the raise of external gamma dose rates throughout the country. The objective of this work is to present results from recent surveys performed as part of the emergency preparedness for radiological emergencies during major public events in Brazil, such as the the World Youth Day, held in Rio de Janeiro in 2013, and the Confederations Cup and the FIFA World Cup soccer games, in 2013 and 2014, respectively. In this work, only the recent (2014) coastal urban environments measurements were included. Average kerma rates for Fortaleza is 80 ± 23 nGy/h, for Vitoria is 96 ± 33 nGy/h and for Angra dos Reis is 147 ± 16 nGy/h. These results are then compared to previous results on other coastal urban towns (Rio de Janeiro, Niterói and Salvador), and with the high background coastal area of Guarapari town. (authors)

  13. Decomposition of the Urban Water Footprint of Food Consumption: A Case Study of Xiamen City

    Directory of Open Access Journals (Sweden)

    Jiefeng Kang

    2017-01-01

    Full Text Available Decomposition of the urban water footprint can provide insight for water management. In this paper, a new decomposition method based on the log-mean Divisia index model (LMDI was developed to analyze the driving forces of water footprint changes, attributable to food consumption. Compared to previous studies, this new approach can distinguish between various factors relating to urban and rural residents. The water footprint of food consumption in Xiamen City, from 2001 to 2012, was calculated. Following this, the driving forces of water footprint change were broken down into considerations of the population, the structure of food consumption, the level of food consumption, water intensity, and the population rate. Research shows that between 2001 and 2012, the water footprint of food consumption in Xiamen increased by 675.53 Mm3, with a growth rate of 88.69%. Population effects were the leading contributors to this change, accounting for 87.97% of the total growth. The food consumption structure also had a considerable effect on this increase. Here, the urban area represented 94.96% of the water footprint increase, driven by the effect of the food consumption structure. Water intensity and the urban/rural population rate had a weak positive cumulative effect. The effects of the urban/rural population rate on the water footprint change in urban and rural areas, however, were individually significant. The level of food consumption was the only negative factor. In terms of food categories, meat and grain had the greatest effects during the study period. Controlling the urban population, promoting a healthy and less water-intensive diet, reducing food waste, and improving agriculture efficiency, are all elements of an effective approach for mitigating the growth of the water footprint.

  14. Environment and Personal Well-being in Urban China

    Institute of Scientific and Technical Information of China (English)

    Yang Yuwen; Yang Wenya

    2011-01-01

    The aim of this study is to examine the relationship between environment and personal well-being using a sample of 562 urban employees from three cities in Liaoning province in the People's Republic of China. In contrast to previous studies, this study controlled positive affectivity (PA), negative affectivity (NA), job satisfaction and Big Five personality traits. In addition, the research variables of personal well-being index (PWI), positive affectivity, negative affectivity, job satisfaction, Big Five, and environmental satisfaction are measured with multi-item scales. The research finds that environmental satisfaction is positively related to personal well-being, suggesting that improvement of the natural surroundings in the cities can improve people's well-being.

  15. Feature Selection for Audio Surveillance in Urban Environment

    Directory of Open Access Journals (Sweden)

    KIKTOVA Eva

    2014-05-01

    Full Text Available This paper presents the work leading to the acoustic event detection system, which is designed to recognize two types of acoustic events (shot and breaking glass in urban environment. For this purpose, a huge front-end processing was performed for the effective parametric representation of an input sound. MFCC features and features computed during their extraction (MELSPEC and FBANK, then MPEG-7 audio descriptors and other temporal and spectral characteristics were extracted. High dimensional feature sets were created and in the next phase reduced by the mutual information based selection algorithms. Hidden Markov Model based classifier was applied and evaluated by the Viterbi decoding algorithm. Thus very effective feature sets were identified and also the less important features were found.

  16. Interventions in small food stores to change the food environment, improve diet, and reduce risk of chronic disease.

    Science.gov (United States)

    Gittelsohn, Joel; Rowan, Megan; Gadhoke, Preety

    2012-01-01

    Many small-store intervention trials have been conducted in the United States and other countries to improve the food environment and dietary behaviors associated with chronic disease risk. However, no systematic reviews of the methods and outcomes of these trials have been published. The objective of this study was to identify small-store interventions and to determine their impact on food availability, dietary behaviors, and psychosocial factors that influence chronic disease risk. From May 2009 through September 2010, we used PubMed, web-based searches, and listservs to identify small-store interventions that met the following criteria: 1) a focus on small food stores, 2) a completed impact evaluation, and 3) English-written documentation (peer-reviewed articles or other trial documents). We initially identified 28 trials; 16 met inclusion criteria and were used for analysis. We conducted interviews with project staff to obtain additional information. Reviewers extracted and reported data in a table format to ensure comparability between data. Reviewed trials were implemented in rural and urban settings in 6 countries and primarily targeted low-income racial/ethnic minority populations. Common intervention strategies included increasing the availability of healthier foods (particularly produce), point-of-purchase promotions (shelf labels, posters), and community engagement. Less common strategies included business training and nutrition education. We found significant effects for increased availability of healthy foods, improved sales of healthy foods, and improved consumer knowledge and dietary behaviors. Trial impact appeared to be linked to the increased provision of both healthy foods (supply) and health communications designed to increase consumption (demand).

  17. Food security attainment role of urban agriculture: a case study from ...

    African Journals Online (AJOL)

    Food security attainment role of urban agriculture: a case study from Adama City. ... Ethiopian Journal of Business and Economics (The) ... To that effect, the necessary data were generated from both primary and secondary sources.

  18. City rats: insight from rat spatial behavior into human cognition in urban environments.

    Science.gov (United States)

    Yaski, Osnat; Portugali, Juval; Eilam, David

    2011-09-01

    The structure and shape of the urban environment influence our ability to find our way about in the city. Understanding how the physical properties of the environment affect spatial behavior and cognition is therefore a necessity. However, there are inherent difficulties in empirically studying complex and large-scale urban environments. These include the need to isolate the impact of specific urban features and to acquire data on the physical activity of individuals. In the present study, we attempted to overcome the above obstacles and examine the relation between urban environments and spatial cognition by testing the spatial behavior of rats. This idea originated from the resemblance in the operative brain functions and in the mechanisms and strategies employed by humans and other animals when acquiring spatial information and establishing an internal representation, as revealed in past studies. Accordingly, we tested rats in arenas that simulated a grid urban layout (e.g. Manhattan streets) and an irregular urban layout (e.g. Jerusalem streets). We found that in the grid layout, rat movement was more structured and extended over a greater area compared with their restricted movement in the irregular layout. These movement patterns recall those of humans in respective urban environments, illustrating that the structure and shape of the environment affect spatial behavior similarly in humans and rats. Overall, testing rats in environments that simulate facets of urban environments can provide new insights into human spatial cognition in urban environments.

  19. "If I Can Afford Steak, Why Worry About Buying Beans": African American Men's Perceptions of Their Food Environment.

    Science.gov (United States)

    Sherman, Ledric D; Griffith, Derek M

    2018-05-01

    Due to the high level of food-related chronic diseases for African American men, the purpose of this qualitative study was to induce ( n = 83) urban American men's perspective of their food environment considering different ethnic subgroups, built environment, and the temporal context using a phenomenological method and snowball sampling. Focus group interviews were audio-recorded, transcribed, and entered into ATLAS.ti to aid in establishing themes. African American men perceived that fast-food chains are their food choices and that they do not have any other healthy alternatives near their residential community. Their perspective of their current environment was primarily influenced by their formative years, the availability of current food environments, marketing and advertising of food on television, and the cost of eating healthy as compared to the cost of eating what is convenient to their residence. A central theme of the findings of this study is that the availability and accessibility of restaurants and food options are harmful to health over time. The finding suggests that future interventions should consider and incorporate how people develop and understand their current food practices and environment through the lens of time, not just their adult context.

  20. Differences in food environment perceptions and spatial attributes of food shopping between residents of low and high food access areas.

    Science.gov (United States)

    Sohi, Inderbir; Bell, Bethany A; Liu, Jihong; Battersby, Sarah E; Liese, Angela D

    2014-01-01

    To explore potential differences in food shopping behaviors and healthy food availability perceptions between residents living in areas with low and high food access. A cross-sectional telephone survey to assess food shopping behaviors and perceptions. Data from an 8-county food environment field census used to define the Centers for Disease Control and Prevention (CDC) healthier food retail tract and US Department of Agriculture Economic Research Service food desert measure. A total of 968 residents in 8 South Carolina counties. Residents' food shopping behaviors and healthy food availability perceptions. Linear and logistic regression. Compared with residents in high food access areas, residents in low food access areas traveled farther to their primary food store (US Department of Agriculture Economic Research Service: 8.8 vs 7.1 miles, P = .03; CDC: 9.2 vs 6.1 miles, P shopping miles per week (CDC: 28.0 vs 15.4 miles; P shopping access (P Behavior. Published by Elsevier Inc. All rights reserved.

  1. High-sodium food choices by southern, urban African Americans with heart failure.

    Science.gov (United States)

    Kollipara, Usha K; Mo, Vivian; Toto, Kathleen H; Nelson, Lauren L; Schneider, Ruth A; Neily, Jennifer B; Drazner, Mark H

    2006-03-01

    Sodium restriction is important in the management of heart failure (HF). Although many low-sodium educational resources are available, few are directed specifically at urban African Americans. A registered dietitian prospectively interviewed 50 African-American and 25 white patients in an urban public hospital (derivation cohort) in Dallas, TX, using a food-frequency instrument that listed 146 food choices. Foods >300 mg sodium/serving consumed at least weekly by 50% of an ethnic group were classified as being a high-sodium core food for that group. Classification of foods (core or not core) was validated in a second African-American cohort (n = 144). Five high-sodium food choices were classified as core food in both the derivation and validation African-American cohorts (salt in cooking, canned vegetables, cheese, processed meats, and cold cereal) and another 3 when the derivation and validation cohorts were combined (fast food, fried chicken, and corn bread). Four of these 8 foods were not classified as core foods in whites. Eight high-sodium foods were frequently consumed by southern, urban African Americans with heart failure. Several of these foods were not commonly consumed by whites, emphasizing the need to be sensitive to ethnic differences in dietary habits when educating patients about sodium intake.

  2. Educational complex of light-colored modeling of urban environment

    Directory of Open Access Journals (Sweden)

    Karpenko Vladimir E.

    2018-01-01

    Full Text Available Mechanisms, methodological tools and structure of a training complex of light-colored modeling of the urban environment are developed in this paper. The following results of the practical work of students are presented: light composition and installation, media facades, lighting of building facades, city streets and embankment. As a result of modeling, the structure of the light form is determined. Light-transmitting materials and causing characteristic optical illusions, light-visual and light-dynamic effects (video-dynamics and photostatics, basic compositional techniques of light form are revealed. The main elements of the light installation are studied, including a light projection, an electronic device, interactivity and relationality of the installation, and the mechanical device which becomes a part of the installation composition. The meaning of modern media facade technology is the transformation of external building structures and their facades into a changing information cover, into a media content translator using LED technology. Light tectonics and the light rhythm of the plastics of the architectural object are built up through point and local illumination, modeling of the urban ensemble assumes the structural interaction of several light building models with special light-composition techniques. When modeling the social and pedestrian environment, the lighting parameters depend on the scale of the chosen space and are adapted taking into account the visual perception of the pedestrian, and the atmospheric effects of comfort and safety of the environment are achieved with the help of special light compositional techniques. With the aim of realizing the tasks of light modeling, a methodology has been created, including the mechanisms of models, variability and complementarity. The perspectives of light modeling in the context of structural elements of the city, neuropsychology, wireless and bioluminescence technologies are proposed

  3. The role of urban agriculture for food security in low income areas in Nairobi

    NARCIS (Netherlands)

    Mwangi, A.M.

    1995-01-01

    This paper, which is based on research carried out among 210 households in Nairobi (Kenya) in 1994, examines the role of urban agriculture in household food security among low-income urban households. It determines the different strategies the low-income population of Nairobi deploys in order to

  4. Closing the life cycle of phosphorus in an urban food system: the case Almere (NL)

    NARCIS (Netherlands)

    Dijk, van W.; Jansma, J.E.; Sukkel, W.; Reuler, van H.; Vermeulen, T.; Visser, A.J.

    2017-01-01

    In order to explore the possibilities of a local food system and its effects on the nutrient cycle, a desk study was executed for the urban region Almere, a Dutch city located in the Flevo Polder with about 200,000 inhabitants. This desk study takes this urban perspective as starting point in the

  5. [Research progress and development trend of quantitative assessment techniques for urban thermal environment.

    Science.gov (United States)

    Sun, Tie Gang; Xiao, Rong Bo; Cai, Yun Nan; Wang, Yao Wu; Wu, Chang Guang

    2016-08-01

    Quantitative assessment of urban thermal environment has become a focus for urban climate and environmental science since the concept of urban heat island has been proposed. With the continual development of space information and computer simulation technology, substantial progresses have been made on quantitative assessment techniques and methods of urban thermal environment. The quantitative assessment techniques have been developed to dynamics simulation and forecast of thermal environment at various scales based on statistical analysis of thermal environment on urban-scale using the historical data of weather stations. This study reviewed the development progress of ground meteorological observation, thermal infrared remote sensing and numerical simulation. Moreover, the potential advantages and disadvantages, applicability and the development trends of these techniques were also summarized, aiming to add fundamental knowledge of understanding the urban thermal environment assessment and optimization.

  6. Assessing mobile food vendors (a.k.a. street food vendors)--methods, challenges, and lessons learned for future food-environment research.

    Science.gov (United States)

    Lucan, S C; Varona, M; Maroko, A R; Bumol, J; Torrens, L; Wylie-Rosett, J

    2013-08-01

    Mobile food vendors (also known as street food vendors) may be important sources of food, particularly in minority and low-income communities. Unfortunately, there are no good data sources on where, when, or what vendors sell. The lack of a published assessment method may contribute to the relative exclusion of mobile food vendors from existing food-environment research. A goal of this study was to develop, pilot, and refine a method to assess mobile food vendors. Cross-sectional assessment of mobile food vendors through direct observations and brief interviews. Using printed maps, investigators canvassed all streets in Bronx County, NY (excluding highways but including entrance and exit ramps) in 2010, looking for mobile food vendors. For each vendor identified, researchers recorded a unique identifier, the vendor's location, and direct observations. Investigators also recorded vendors answers to where, when, and what they sold. Of 372 identified vendors, 38% did not answer brief-interview questions (19% were 'in transit', 15% refused; others were absent from their carts/trucks/stands or with customers). About 7% of vendors who ultimately answered questions were reluctant to engage with researchers. Some vendors expressed concerns about regulatory authority; only 34% of vendors had visible permits or licenses and many vendors had improvised illegitimate-appearing set-ups. The majority of vendors (75% of those responding) felt most comfortable speaking Spanish; 5% preferred other non-English languages. Nearly a third of vendors changed selling locations (streets, neighbourhoods, boroughs) day-to-day or even within a given day. There was considerable variability in times (hours, days, months) in which vendors reported doing business; for 86% of vendors, weather was a deciding factor. Mobile food vendors have a variable and fluid presence in an urban environment. Variability in hours and locations, having most comfort with languages other than English, and reluctance

  7. Assessing mobile food vendors (a.k.a. street food vendors)—methods, challenges, and lessons learned for future food-environment research

    Science.gov (United States)

    Lucan, Sean C.; Varona, Monica; Maroko, Andrew R.; Bumol, Joel; Torrens, Luis; Wylie-Rosett, Judith

    2013-01-01

    OBJECTIVES Mobile food vendors (also known as street food vendors) may be important sources of food, particularly in minority and low-income communities. Unfortunately, there are no good data sources on where, when, or what vendors sell. The lack of a published assessment method may contribute to the relative exclusion of mobile food vendors from existing food-environment research. A goal of this study was to develop, pilot, and troubleshoot a method to assess mobile food vendors. STUDY DESIGN Cross-sectional assessment of mobile food vendors through direct observations and brief interviews. METHODS Using printed maps, investigators canvassed all streets in Bronx County, NY (excluding highways but including entrance and exit ramps) in 2010, looking for mobile food vendors. For each vendor identified, researchers recorded a unique identifier, the vendor’s location, and direct observations. Investigators also recorded vendors answers to where, when, and what they sold. RESULTS Of 372 identified vendors, 38% did not answer brief-interview questions (19% were “in transit”, 15% refused; others were absent from their carts/trucks/stands or with customers). About 7% of vendors who ultimately answered questions were reluctant to engage with researchers. Some vendors expressed concerns about regulatory authority; only 34% of vendors had visible permits or licenses and many vendors had improvised illegitimate-appearing set-ups. The majority of vendors (75% of those responding) felt most comfortable speaking Spanish; 5% preferred other non-English languages. Nearly a third of vendors changed selling locations (streets, neighborhoods, boroughs) day-to-day or even within a given day. There was considerable variability in times (hours, days, months) in which vendors reported doing business; for 86% of vendors, weather was a deciding factor. CONCLUSIONS Mobile food vendors have a variable and fluid presence in an urban environment. Variability in hours and locations, having

  8. Defining Neighbourhoods as a Measure of Exposure to the Food Environment

    Directory of Open Access Journals (Sweden)

    Anders K. Lyseen

    2015-07-01

    Full Text Available Neighbourhoods are frequently used as a measure for individuals’ exposure to the food environment. However, the definitions of neighbourhoods fluctuate and have not been applied consistently in previous studies. Neighbourhoods defined from a single fixed location fail to capture people’s complete exposure in multiple locations, but measuring behaviour using traditional methods can be challenging. This study compares the traditional methods of measuring exposure to the food environment to methods that use data from GPS tracking. For each of the 187 participants, 11 different neighbourhoods were created in which the exposure to supermarkets and fast food outlets were measured. ANOVA, Tukey’s Honestly Significant Difference (HSD test and t-tests were performed to compare the neighbourhoods. Significant differences were found between area sizes and the exposure to supermarkets and fast food outlets for different neighbourhood types. Second, significant differences in exposure to food outlets were found between the urban and rural neighbourhoods. Neighbourhoods are clearly a diffused and blurred concept that varies in meaning depending on each person’s perception and the conducted study. Complexity and heterogeneity of human mobility no longer appear to correspond to the use of residential neighbourhoods but rather emphasise the need for methods, concepts and measures of individual activity and exposure.

  9. Monitoring the impacts of trade agreements on food environments.

    Science.gov (United States)

    Friel, S; Hattersley, L; Snowdon, W; Thow, A-M; Lobstein, T; Sanders, D; Barquera, S; Mohan, S; Hawkes, C; Kelly, B; Kumanyika, S; L'Abbe, M; Lee, A; Ma, J; Macmullan, J; Monteiro, C; Neal, B; Rayner, M; Sacks, G; Swinburn, B; Vandevijvere, S; Walker, C

    2013-10-01

    The liberalization of international trade and foreign direct investment through multilateral, regional and bilateral agreements has had profound implications for the structure and nature of food systems, and therefore, for the availability, nutritional quality, accessibility, price and promotion of foods in different locations. Public health attention has only relatively recently turned to the links between trade and investment agreements, diets and health, and there is currently no systematic monitoring of this area. This paper reviews the available evidence on the links between trade agreements, food environments and diets from an obesity and non-communicable disease (NCD) perspective. Based on the key issues identified through the review, the paper outlines an approach for monitoring the potential impact of trade agreements on food environments and obesity/NCD risks. The proposed monitoring approach encompasses a set of guiding principles, recommended procedures for data collection and analysis, and quantifiable 'minimal', 'expanded' and 'optimal' measurement indicators to be tailored to national priorities, capacity and resources. Formal risk assessment processes of existing and evolving trade and investment agreements, which focus on their impacts on food environments will help inform the development of healthy trade policy, strengthen domestic nutrition and health policy space and ultimately protect population nutrition. © 2013 The Authors. Obesity Reviews published by John Wiley & Sons Ltd on behalf of the International Association for the Study of Obesity.

  10. Gram-positive bacteria persisting in the food production environment

    DEFF Research Database (Denmark)

    Knøchel, Susanne; Harmsen, Morten; Knudsen, Bettina

    2008-01-01

    Many gram-positive bacteria are able to form aggregates or biofilms and resist external stress factors and some gram-positive pathogenic bacteria such as Listeria monocytogenes and Bacillus cereus may persist in the food production environment for extended periods. Most research has focussed...

  11. Exploring Parent Perceptions of the Food Environment in Youth Sport

    Science.gov (United States)

    Thomas, Megan; Nelson, Toben F.; Harwood, Eileen; Neumark-Sztainer, Dianne

    2012-01-01

    Objective: To examine parent perceptions of the food environment in youth sport. Methods: Eight focus group discussions were held with parents (n = 60) of youth aged 6-13 years participating in basketball programs in Minnesota. Key themes and concepts were identified via transcript-based analysis. Results: Parents reported that youth commonly…

  12. A Coordinated Approach to Food Safety and Land Use Law at the Urban Fringe.

    Science.gov (United States)

    Miller, Stephen R

    2015-01-01

    Much has been written about the rise of the local food movement in urban and suburban areas. This essay tackles an emerging outgrowth of that movement: the growing desire of urban and suburban dwellers to engage rural areas where food is produced not only to obtain food but also as a means of tourism and cultural activity. This represents a potentially much-needed means of economic development for rural areas and small farmers who are increasingly dependent on non-farm income for survival. The problem, however, is that food safety and land use laws struggle to keep up with these changes, waffling between over-regulation and de-regulation. This essay posits a legal path forward to steer clear of regulatory extremes and to help the local food movement grow and prosper at the urban fringe. We must cultivate our garden.

  13. School food environment: Quality and advertisement frequency of child-oriented packaged products within walking distance of public schools.

    Science.gov (United States)

    Missbach, Benjamin; Pachschwöll, Caterina; Kuchling, Daniel; König, Jürgen

    2017-06-01

    Food marketing for children is a major concern for public health nutrition and many schools make efforts to increase healthy eating. Food environments surrounding schools in urban areas may undermine these efforts for healthy nutrition within school programs. Our study aim is to describe the nutrition environment within walking distance of schools in terms of food quality and food marketing and to explore the degree to which elements of the nutrition environment varies by proximity to schools. In a cross-sectional study, we analyzed the surrounding food environments of a convenience sample of 46 target schools within 950m walking distance in 7 different urban districts across Vienna, Austria. In total, we analyzed data from 67 fast food outlets and 54 supermarkets analyzing a total of 43.129 packaged snack food and beverage products, from which 85% were for adults and 15% of the products were child-oriented. Proximity to the schools did not affect the availability of child-oriented products and dedicated food advertisements for children. After applying nutrient profiling using the Nutrient Profiling Model (NPM) on child-oriented products, results showed that 15.8% of the packaged snack food were categorized as "healthy" foods and 84.2% as "less healthy"; for beverages 65.7% were categorized as "healthy" and 34.3% as "less healthy". In conclusion, our results show that child-oriented snacks are not more frequently advertised around schools but substantially lack in nutritional quality with the potential to undermine efforts for promoting healthy eating practices within schools.

  14. School food environment: Quality and advertisement frequency of child-oriented packaged products within walking distance of public schools

    Directory of Open Access Journals (Sweden)

    Benjamin Missbach

    2017-06-01

    Full Text Available Food marketing for children is a major concern for public health nutrition and many schools make efforts to increase healthy eating. Food environments surrounding schools in urban areas may undermine these efforts for healthy nutrition within school programs. Our study aim is to describe the nutrition environment within walking distance of schools in terms of food quality and food marketing and to explore the degree to which elements of the nutrition environment varies by proximity to schools. In a cross-sectional study, we analyzed the surrounding food environments of a convenience sample of 46 target schools within 950m walking distance in 7 different urban districts across Vienna, Austria. In total, we analyzed data from 67 fast food outlets and 54 supermarkets analyzing a total of 43.129 packaged snack food and beverage products, from which 85% were for adults and 15% of the products were child-oriented. Proximity to the schools did not affect the availability of child-oriented products and dedicated food advertisements for children. After applying nutrient profiling using the Nutrient Profiling Model (NPM on child-oriented products, results showed that 15.8% of the packaged snack food were categorized as “healthy” foods and 84.2% as “less healthy”; for beverages 65.7% were categorized as “healthy” and 34.3% as “less healthy”. In conclusion, our results show that child-oriented snacks are not more frequently advertised around schools but substantially lack in nutritional quality with the potential to undermine efforts for promoting healthy eating practices within schools.

  15. Effect of TV food advertising restriction on food environment for children in South Korea.

    Science.gov (United States)

    Lee, Youngmi; Yoon, Jihyun; Chung, Sang-Jin; Lee, Soo-Kyung; Kim, Hyogyoo; Kim, Soyoung

    2017-02-01

    This study attempted to determine the effects of restrictions on television (TV) food advertising on children's food environments in South Korea. It examined changes that occurred in the marketing mix of food companies following enactment of those restrictions. An on-line survey was conducted with marketers or R&D managers of 108 food companies. A questionnaire was used to inquire about changes that occurred in Product, Place, Price and Promotion as a result of the restrictions placed on TV food advertising. Analysis was performed on the data collected from the responding 63 food companies (58.3%). The results of their answers showed that among the four marketing mix components the restrictions exerted relatively stronger effects on Product. Effects were stronger on companies that produced foods within the product categories of Energy-Dense and Nutrient-Poor foods (EDNP companies) in comparison with companies that did not (non-EDNP companies). The restrictions exerted positive effects on EDNP companies with respect to compliance with labeling requirements and reinforcement of nutritional contents examination, as well as changes to products such as reducing unhealthy ingredients and fortifying nutrients. Overall, the results revealed the possibility that restrictions on TV food advertising could improve children's food environments by encouraging EDNP companies to make favorable product changes. On the one hand, the results also found that some food companies attempted to bypass the regulations by changing marketing channels from TV to others and by reducing product serving sizes. Thus, future measures should be implemented to prevent food companies from bypassing regulations and to control children's exposure to marketing channels other than TV.

  16. Perthes' disease of the hip: socioeconomic inequalities and the urban environment.

    Science.gov (United States)

    Perry, Daniel C; Bruce, Colin E; Pope, Daniel; Dangerfield, Peter; Platt, Mary Jane; Hall, Andrew J

    2012-12-01

    Perthes' disease is a puzzling childhood hip disorder for which the aetiology is unknown. It is known to be associated with socioeconomic deprivation. Urban environments have also been implicated as a risk factor, however socioeconomic deprivation often occurs within urban environments and it is unclear if this association is the result of confounding. The objective of the current work was to gain a greater understanding of the influence of the urban/rural environment in Perthes' disease. This was a descriptive observational study using the Scottish Morbidity Record, based in Scotland, UK using data from 2000-2010. A total of 443 patients with a discharge diagnosis of Perthes' disease were included. Socioeconomic deprivation was determined using the Scottish Index of Multiple Deprivation, and exposure to the 'urban environment' was recorded based on the Scottish Urban-Rural Classification. There was a strong association with socioeconomic deprivation, with rates among the most deprived quintile more than twice those of the most affluent (RR 2.1 (95% CI 1.5 to 2.9)). Urban areas had a greater rate of Perthes' disease discharges (RR 1.8 (95% CI 1.1 to 3.2)), though this was a reflection of greater deprivation in urban areas. Stratification for socioeconomic deprivation revealed similar discharge rates in urban and rural environments, suggesting that the aetiological determinants were not independently associated with urban environments. The occurrence of Perthes' disease within urban environments is high, yet this appears to be a reflection of higher socioeconomic deprivation exposure. Disease rates appear equivalent in similarly deprived urban and non-urban areas, suggesting that the determinant is not a consequence of the urban environment.

  17. Geo-spatial technologies in urban environments policy, practice, and pixels

    CERN Document Server

    Jensen, Ryan R; McLean, Daniel

    2004-01-01

    Using Geospatial Technologies in Urban Environments simultaneously fills two gaping vacuums in the scholarly literature on urban geography. The first is the clear and straightforward application of geospatial technologies to practical urban issues. By using remote sensing and statistical techniques (correlation-regression analysis, the expansion method, factor analysis, and analysis of variance), the - thors of these 12 chapters contribute significantly to our understanding of how geospatial methodologies enhance urban studies. For example, the GIS Specialty Group of the Association of American Geographers (AAG) has the largest m- bership of all the AAG specialty groups, followed by the Urban Geography S- cialty Group. Moreover, the Urban Geography Specialty Group has the largest number of cross-memberships with the GIS Specialty Group. This book advances this important geospatial and urban link. Second, the book fills a wide void in the urban-environment literature. Although the Annals of the Association of ...

  18. Objective Measures of Emotion During Virtual Walks through Urban Environments

    Directory of Open Access Journals (Sweden)

    Moritz Geiser

    2011-07-01

    Full Text Available Previous studies were able to demonstrate different verbally stated affective responses to environments. In the present study we used objective measures of emotion. We examined startle reflex modulation as well as changes in heart rate and skin conductance while subjects virtually walked through six different areas of urban Paris using the StreetView tool of Google maps. Unknown to the subjects, these areas were selected based on their median real estate prices. First, we found that price highly correlated with subjective rating of pleasantness. In addition, relative startle amplitude differed significantly between the area with lowest versus highest median real estate price while no differences in heart rate and skin conductance were found across conditions. We conclude that interaction with environmental scenes does elicit emotional responses which can be objectively measured and quantified. Environments activate motivational and emotional brain circuits, which is in line with the notion of an evolutionary developed system of environmental preference. Results are discussed in the frame of environmental psychology and aesthetics.

  19. Relation between local food environments and obesity among adults

    Directory of Open Access Journals (Sweden)

    Raine Kim D

    2009-06-01

    Full Text Available Abstract Background Outside of the United States, evidence for associations between exposure to fast-food establishments and risk for obesity among adults is limited and equivocal. The purposes of this study were to investigate whether the relative availability of different types of food retailers around people's homes was associated with obesity among adults in Edmonton, Canada, and if this association varied as a function of distance between food locations and people's homes. Methods Data from a population health survey of 2900 adults (18 years or older conducted in 2002 was linked with geographic measures of access to food retailers. Based upon a ratio of the number of fast-food restaurants and convenience stores to supermarkets and specialty food stores, a Retail Food Environment Index (RFEI was calculated for 800 m and 1600 m buffers around people's homes. In a series of logistic regressions, associations between the RFEI and the level of obesity among adults were examined. Results The median RFEI for adults in Edmonton was 4.00 within an 800 m buffer around their residence and 6.46 within a 1600 m buffer around their residence. Approximately 14% of the respondents were classified as being obese. The odds of a resident being obese were significantly lower (OR = 0.75, 95%CI 0.59 – 0.95 if they lived in an area with the lowest RFEI (below 3.0 in comparison to the highest RFEI (5.0 and above. These associations existed regardless of the covariates included in the model. No significant associations were observed between RFEI within a 1600 m buffer of the home and obesity. Conclusion The lower the ratio of fast-food restaurants and convenience stores to grocery stores and produce vendors near people's homes, the lower the odds of being obese. Thus the proximity of the obesogenic environment to individuals appears to be an important factor in their risk for obesity.

  20. Modes of Disintegration of Solid Foods in Simulated Gastric Environment

    Science.gov (United States)

    Kong, Fanbin

    2009-01-01

    A model stomach system was used to investigate disintegration of various foods in simulated gastric environment. Food disintegration modes and typical disintegration profiles are summarized in this paper. Mechanisms contributing to the disintegration kinetics of different foods were investigated as related to acidity, temperature, and enzymatic effect on the texture and changes in microstructure. Food disintegration was dominated by either fragmentation or erosion, depending on the physical forces acting on food and the cohesive force within the food matrix. The internal cohesive forces changed during digestion as a result of water penetration and acidic and enzymatic hydrolysis. When erosion was dominant, the disintegration data (weight retention vs. disintegration time) may be expressed with exponential, sigmoidal, and delayed-sigmoidal profiles. The different profiles are the result of competition among the rates of water absorption, texture softening, and erosion. A linear-exponential equation was used to describe the different disintegration curves with good fit. Acidity and temperature of gastric juice showed a synergistic effect on carrot softening, while pepsin was the key factor in disintegrating high-protein foods. A study of the change of carrot microstructure during digestion indicated that degradation of the pectin and cell wall was responsible for texture softening that contributed to the sigmoidal profile of carrot disintegration. PMID:20401314

  1. Household food insecurity and dietary patterns in rural and urban American Indian families with young children.

    Science.gov (United States)

    Tomayko, Emily J; Mosso, Kathryn L; Cronin, Kate A; Carmichael, Lakeesha; Kim, KyungMann; Parker, Tassy; Yaroch, Amy L; Adams, Alexandra K

    2017-06-30

    High food insecurity has been demonstrated in rural American Indian households, but little is known about American Indian families in urban settings or the association of food insecurity with diet for these families. The purpose of this study was to examine the prevalence of food insecurity in American Indian households by urban-rural status, correlates of food insecurity in these households, and the relationship between food insecurity and diet in these households. Dyads consisting of an adult caregiver and a child (2-5 years old) from the same household in five urban and rural American Indian communities were included. Demographic information was collected, and food insecurity was assessed using two validated items from the USDA Household Food Security Survey. Factors associated with food insecurity were examined using logistic regression. Child and adult diets were assessed using food screeners. Coping strategies were assessed through focus group discussions. These cross-sectional baseline data were collected from 2/2013 through 4/2015 for the Healthy Children, Strong Families 2 randomized controlled trial of a healthy lifestyles intervention for American Indian families. A high prevalence of food insecurity was determined (61%) and was associated with American Indian ethnicity, lower educational level, single adult households, WIC participation, and urban settings (p = 0.05). Food insecure adults had significantly lower intake of vegetables (p insecure children had significantly higher intakes of fried potatoes (p insecurity. The prevalence of food insecurity in American Indian households in our sample is extremely high, and geographic designation may be an important contributing factor. Moreover, food insecurity had a significant negative influence on dietary intake for families. Understanding strategies employed by households may help inform future interventions to address food insecurity. ( NCT01776255 ). Registered: January 16, 2013. Date of enrollment

  2. Consumer agency and food retailer choice in an American urban neighborhood

    Directory of Open Access Journals (Sweden)

    Brian Thomas

    2011-06-01

    Full Text Available Abstract This study examines the issue of consumer agency within the food system as manifested by food secure and food insecure households in an urban neighborhood in the United States. Using a self-administered mail survey this study examines food retailer perception and shopping behaviour of food secure and insecure households in Lansing, Michigan. Food security represents a useful lens through which to examine the issue of agency since food, while a necessary part of life, is nonetheless something that is difficult to access for a large sector of the population. By examining both food secure and food insecure households, light is shed on some of the factors that lead to the relative ability of each group to successfully and reliably obtain food. In particular, this study focuses on the perception and behaviour of consumers in relation to the decision to shop, or not to shop, at various food retailers. Some theories of consumer behaviour tend to focus either on class related cultural elements which determine taste preferences while other theories focus on structural elements of the food system which force a limited selection onto various social groups. While certainly class culture influences taste preference to some extent, results from this study suggest that structural elements of the food system and economic differences between food secure and food insecure households have a larger influence on store choice than cultural preferences. In fact, both food secure and insecure households indicated similar sets of criteria used in determining store choices. However, in examination of actual shopping behaviours, this study found that food insecure households are more likely to shop at deep discounters and more likely to travel farther to obtain food. These results suggest that structural elements such as food retailer locations limit the range of shopping options of food insecure households when compared to food secure households. Keywords: food

  3. Border Patrol: Professional Jurisdictions in Sustainable Urban Environments

    Directory of Open Access Journals (Sweden)

    Rebecca Henn

    2013-03-01

    Full Text Available According to the United Nations, our world is becoming more populated, more urban, more connected, more globalized, and more complex. With this physical and social complexity comes a need for increased coordination in negotiating our urban futures. Environmental design and planning professionals have worked for decades according to traditional institutionalized role structures. Sustainability—in considering a wider variety of stakeholders—promises not only to include more members in the typical design and construction team (e.g., sustainability consultants, community representatives, technical specialists, etc., but also to change the jurisdiction of tasks (e.g., project management, decision making, design leadership, etc. taken on by actors in traditional roles (e.g., owner, architect, contractor, etc.. This paper examines how a wider social concern for environmental and social sustainability has affected the design and construction industry. Organizational and sociological theories suggest that professions are “bound to a set of tasks by ties of jurisdiction... [P]rofessions make up an interacting system... and a profession’s success reflects as much the situations of its competitors and the system structure as it does the profession’s own efforts” (Abbott 1988: 33. Abbott also suggests that “larger social forces” affect the structuring of professional boundaries. Treating sustainability as a “larger social force,” this paper examines current understandings of professional boundaries in the planning, design, and construction of our environments. It answers questions of how professionals renegotiate roles, responsibilities, and compensation when dealing with an uncertain change in traditional processes.The qualitative data stem from three university building projects. Each project was proposed ab initio without a mandate to achieve LEED Certification, but this complex criterion was subsequently added at different phases of

  4. Integrated site investigation and groundwater monitoring in an urban environment

    Science.gov (United States)

    Weatherl, R. K.

    2017-12-01

    Understanding groundwater dynamics around cities and other areas of human influence is of crucial importance for water resource management and protection, especially in a time of environmental and societal change. The human environment presents a unique challenge in terms of hydrological characterization, as the water cycle is generally artificialized and emissions of treated waste and chemical products into the surface- and groundwater system tend to disrupt the natural aqueous signature in significant ways. This project presents an integrated approach for robust characterization and monitoring of an urban aquifer which is actively exploited for municipal water supply. The study is carried out in the town of Fehraltorf, in the canton of Zürich, Switzerland. This particular town encompasses industrial and agricultural zones in addition to its standard urban setting. A minimal amount of data exist at this site, and the data that do exist are spatially and temporally sparse. Making use of traditional hydrogeological methods alongside evolving and emerging technologies, we aim to identify sources of contamination and to define groundwater flow and solute transport through space and time. Chemical and physical indicator parameters are identified for tracing contaminations including micropollutants and plant nutrients. Wireless sensors are installed for continuous on-line monitoring of essential parameters (electrical conductivity, temperature, water level). A wireless sensor network has previously been installed in the sewer system of the study site, facilitating investigation into interactions between sewer water and groundwater. Our approach illustrates the relations between land use, climate, rainfall dynamics, and the groundwater signature through time. At its conclusion, insights gained from this study will be used by municipal authorities to refine protective zones around pumping wells and to direct resources towards updating practices and replacing

  5. Lessons learned on solar powered wireless sensor network deployments in urban, desert environments

    KAUST Repository

    Dehwah, Ahmad H.; Mousa, Mustafa; Claudel, Christian G.

    2015-01-01

    The successful deployment of a large scale solar powered wireless sensor network in an urban, desert environment is a very complex task. Specific cities of such environments cause a variety of operational problems, ranging from hardware faults

  6. Decay and durability of building stones in urban environments

    Directory of Open Access Journals (Sweden)

    Grossi, C. M.

    1998-12-01

    Full Text Available This paper studies the effect of some pollutant agents in urban environments -gaseous SO2, acid rain and solid particles- on carbonate and siliceous building stones with different petrophysic characteristics. The selected environments have been London, Garston (UK and Burgos (Spain and the exposed materials have been Portland, Combe Down and Hontoria limestones, Laspra dolomite and Rosa Porriño granite. Products generated by the action of gases, acid rain and solid particles on stones have been analyzed. To point out the properties of stones that influence their decay, the results obtained on the stones exposed to the above environments have been compared to those from some laboratory accelerated ageing tests.

    Se estudia el efecto de ciertos agentes de contaminación presentes en ambientes urbanos –SO2 gaseoso, lluvia acida y partículas sólidas- sobre rocas de naturaleza carbonatada y silicatada con características petrofísicas distintas, utilizadas en edificación. Los ambientes seleccionados han sido Londres, Garston (UK y Burgos, y los materiales expuestos han sido las calizas de Portland, Combe Down y Hontoria, la dolomía de Laspra y el granito Rosa Porriño. Se analizan los productos generados por la acción de los gases, la lluvia acida y las partículas sólidas sobre los diferentes tipos de piedra. Se exponen los resultados obtenidos en la piedra expuesta a los ambientes antes citados, y los daños generados en algunos ensayos de envejecimiento artificial acelerado con el fin de resaltar las características intrínsecas de las piedras que condicionan su degradación.

  7. Lepidoglyphus destructor acarus in the urban house environment.

    Science.gov (United States)

    Juliá, J C; Martorell, A; Ventas, P; Cerdá, J C; Torró, I; Carreira, J; Guinot, E; Sanz, J; Alvarez, V

    1995-01-01

    To assess the presence of Lepidoglyphus destructor in the household environment of sensitized children living in an urban environment, samples of house dust were collected at the homes where two groups of patients were living, as well as in two bakeries in the city of Valencia, which were taken as a reference. Patients were divided into two groups. Group A included atopic children suffering from rhinitis and/or asthma, who were sensitized to L. destructor, as proven by prick test and specific IgE (CAP). Group B included children with the same features as those included in Group A, who were sensitized to Dermatophagoides pteronyssinus, with prick and CAP tests showing no significant sensitization to L. destructor. The samples of dust were analyzed, and the amounts of Der p I, Der f I, Der II and Lep d I per gram of dust were assessed through a solid-phase ELISA with monoclonal antibodies. In Group A, all patients but two showed a sensitization to D. pteronyssinus by prick test and serum IgE. At the homes of the patients from both groups, significant levels of Dermatophagoides were found. In Group A, only three houses showed levels of L. destructor which were comparable to those found in bakeries. Lep d I was not found in the houses of Group B patients. This means that a sensitization to L. destructor, as assessed with full extracts, is not always an indicator of its presence at the patient's house environment; it may rather refer to cross-reactivity to Dermatophagoides. Thus, availability of the main antigen Lep d I seems necessary to increase the specificity of the allergologic study.

  8. Solar radiation in forested urban environments with dry climate. Case: Metropolitan Area of Mendoza, Argentina

    Directory of Open Access Journals (Sweden)

    Mariela Edith Arboit

    2014-12-01

    Full Text Available The aim of this work is to advance the understanding of the solar potential of urban residential environments which, by their morphology, and the impact of urban trees, present values of irradiance very different from full solar collection. Morphological variables of urban settings and urban trees, a very distinctive feature of the Mendoza Metropolitan Area (MMA, have a fundamental impact on the feasibility of implementing strategies for solar energy utilization in urban environments. The results achieved will contribute to modify and gradually update urban and building legislation to implement higher levels of energy efficiency and minimum environmental impacts.This work proposes to study the potential of solar collection in urban environments, analyzing eleven urban configurations selected according to their building and urban morphological characteristics.Methodologically, we have monitored the global solar irradiance on vertical plane on northern facades, completely sunny and partly sunny, affected by solid masking and arboreal masking. Results obtained so far indicate that solar masking is critical for vertical surfaces, with a reduction of the available solar energy between 2% and 66% in the winter season. However, these drawbacks caused by urban trees are compensated by benefits in the warm season: controlling the intensity of the urban heat island, absorption of pollutants, cooling and humidifying the air through evapotranspiration, reducing thermal loads of buildings, occupancy of public open spaces, and an invaluable contribution to the urban aesthetic.

  9. Investigation of a coupling model of coordination between urbanization and the environment.

    Science.gov (United States)

    Li, Yangfan; Li, Yi; Zhou, Yan; Shi, Yalou; Zhu, Xiaodong

    2012-05-15

    China's coastal cities are experiencing rapid urbanization, which has resulted in many challenges. This paper presents a comprehensive index system for assessment of the level of urbanization based on four aspects: demographic urbanization, economic urbanization, social urbanization and spatial urbanization. The developed index system also characterizes the environment based on three factors: environmental pressure, environmental level and environmental control. Furthermore, a coupling coordination degree model (CCDM) focusing on the degree of coordination between urbanization and the environment was established using panel data collected from 2000 to 2008 for Lianyungang, China. The results showed that: (1) the dynamic of coordination between urbanization and the environment showed a U-shaped curve, and both sub-systems evolved into a superior balance during rapid urbanization; (2) social urbanization and environmental control make the greatest contribution to the coupling system, indicating that they are the critical factors to consider when adjusting coordination development during decision-making; and (3) the two parameters (α-urbanization, β-environment) that have been widely used in previous studies had less of an effect on the coupling coordinated system than the other factors considered herein. Copyright © 2012 Elsevier Ltd. All rights reserved.

  10. Study of thermal environment in Jingjintang urban agglomeration based on WRF model and Landsat data

    International Nuclear Information System (INIS)

    Huang, Q N; Cao, Z Q; Guo, H D; Xi, X H; Li, X W

    2014-01-01

    In recent decades, unprecedented urban expansion has taken place in developing countries resulting in the emergence of megacities or urban agglomeration. It has been highly concerned by many countries about a variety of urban environmental issues such as greenhouse gas emissions and urban heat island phenomenon associated with urbanization. Generally, thermal environment is monitored by remote sensing satellite data. This method is usually limited by weather and repeated cycle. Another approach is relied on numerical simulation based on models. In the study, these two means are combined to study the thermal environment of Jingjintang urban agglomeration. The high temperature processes of the study area in 2009 and 1990s are simulated by using WRF (the Weather Research and Forecasting Model) coupled with UCM (Urban Canopy Model) and the urban impervious surface estimated from Landsat-5 TM data using support vector machine. Results show that the trend of simulated air temperature (2 meter) is in accord with observed air temperature. Moreover, it indicates the differences of air temperature and Land Surface Temperature caused by the urbanization efficiently. The UHI effect at night is stronger than that in the day. The maximum difference of LST reaches to 8–10°C for new build-up area at night. The method provided in this research can be used to analyze impacts on urban thermal environment caused by urbanization and it also provides means on thermal environment monitoring and prediction which will benefit the coping capacity of extreme event

  11. Contributions of fuel combustion to pollution by airborne particles in urban and non-urban environments

    International Nuclear Information System (INIS)

    1995-06-01

    The application of ion beam analysis (IBA) techniques to aerosol pollution problems has been used in a number of countries since the late 1970's and early 1980's. The technique, however, had not been tested in Australia. This document is the final report of a project which aimed to establish a fine particle monitoring network covering the greater Wollongong/Sydney/ Newcastle ares, investigate the relationships between fuel combustion and fine particle aerosols in urban and non urban environments, add to the limited database of baseline information on concentrations of fine particles resulting from such processes as fossil fuel burning and industrial manufacturing, identify and quantify sources of fine particles in New South Wales, and introduce into Australia accelerator based IBA techniques for the analysis of filter papers obtained from large scale monitoring networks. These objectives were addressed by the project which identified and quantified some sources of fine particles and established some relationships between fuel combustion and fine aerosols. More work is required to fully quantify relationships between natural and anthropogenic fine particle sources. 24 tabs., 44 figs., 83 refs

  12. Validity of a Competing Food Choice Construct regarding Fruit and Vegetable Consumption among Urban College Freshmen

    Science.gov (United States)

    Yeh, Ming-Chin; Matsumori, Brandy; Obenchain, Janel; Viladrich, Anahi; Das, Dhiman; Navder, Khursheed

    2010-01-01

    Objective: This paper presents the reliability and validity of a "competing food choice" construct designed to assess whether factors related to consumption of less-healthful food were perceived to be barriers to fruit and vegetable consumption in college freshmen. Design: Cross-sectional, self-administered survey. Setting: An urban public college…

  13. Urban Farm-Nonfarm Diversification, Household Income and Food Expenditure in Ghana

    Directory of Open Access Journals (Sweden)

    Ampaw Samuel

    2017-08-01

    Full Text Available This paper investigates the impact of farm-nonfarm diversification (FND on household income and food expenditure in urban Ghana using propensity score matching (PSM technique to account for potential selection bias. We find diversified households to be statistically different from undiversified households in terms of household characteristics. Age, gender, educational attainment of the household head, household size, ownership of livestock and agricultural land, and receipt of miscellaneous and rent incomes are positive and significant determinants of FND in urban Ghana. In addition, we find that participation in both farm and nonfarm activities positively and significantly impacts household income and food expenditure. In the light of growing urbanization, with its implications for unemployment, poverty and food insecurity, we recommend diversification among urban households as a means of smoothing income and consumption.

  14. Factors Influencing Urban Consumers' Acceptance of Genetically Modified Foods

    OpenAIRE

    Jae-Hwan Han; R. Wes Harrison

    2007-01-01

    Linkages between consumer beliefs and attitudes regarding the risks and benefits of genetically modified foods and consumer purchase intentions for these foods are examined. Factors that hinder consumer purchases of genetically modified foods are also tested. Results show that purchase intentions for consumers willing to buy genetically modified crops and meats are primarily affected by their belief that these foods are safe. On the other hand, intentions of consumers who decide not to buy ge...

  15. Association of food environment and food retailers with obesity in US adults.

    Science.gov (United States)

    Yan, Renfei; Bastian, Nathaniel D; Griffin, Paul M

    2015-05-01

    The food environment has been shown to be a factor affecting the obesity rate. We studied the association of density of food retailer type with obesity rate in U.S. adults in local regions controlling for socioeconomic factors. Parametric nonlinear regression was used on publically available data (year=2009) at the county level. We used the results of this association to estimate the impact of the addition of a new food retailer type in a geographic region. Obesity rate increased in supercenters (0.25-0.28%) and convenience stores (0.05%) and decreased in grocery stores (0.08%) and specialized food stores (0.27-0.36%). The marginal measures estimated in this work could be useful in identifying regions where interventions based on food retailer type would be most effective. Copyright © 2015 Elsevier Ltd. All rights reserved.

  16. Sustainable food consumption in urban Thailand: an emerging market?

    NARCIS (Netherlands)

    Kantamaturapoj, K.

    2012-01-01

    The food market in Bangkok has developed from a purely traditional one to a combination between traditional and modern sectors. In 1970s and earlier, fresh markets accounted for a hundred percent of food shopping in Bangkok. From that time on, the modern food retails in Bangkok has rapidly

  17. Importing food damages domestic environment: Evidence from global soybean trade.

    Science.gov (United States)

    Sun, Jing; Mooney, Harold; Wu, Wenbin; Tang, Huajun; Tong, Yuxin; Xu, Zhenci; Huang, Baorong; Cheng, Yeqing; Yang, Xinjun; Wei, Dan; Zhang, Fusuo; Liu, Jianguo

    2018-05-22

    Protecting the environment and enhancing food security are among the world's Sustainable Development Goals and greatest challenges. International food trade is an important mechanism to enhance food security worldwide. Nonetheless, it is widely concluded that in international food trade importing countries gain environmental benefits, while exporting countries suffer environmental problems by using land and other resources to produce food for exports. Our study shows that international food trade can also lead to environmental pollution in importing countries. At the global level, our metaanalysis indicates that there was increased nitrogen (N) pollution after much farmland for domestically cultivated N-fixing soybeans in importing countries was converted to grow high N-demanding crops (wheat, corn, rice, and vegetables). The findings were further verified by an intensive study at the regional level in China, the largest soybean-importing country, where the conversion of soybean lands to corn fields and rice paddies has also led to N pollution. Our study provides a sharp contrast to the conventional wisdom that only exports contribute substantially to environmental woes. Our results suggest the need to evaluate environmental consequences of international trade of all other major goods and products in all importing countries, which have significant implications for fundamental rethinking in global policy-making and debates on environmental responsibilities among consumers, producers, and traders across the world.

  18. Food acquisition and intra-household consumption patterns: a study of low and middle income urban households in Delhi, India

    OpenAIRE

    MR Pradhan; FC Taylor; S Agrawal; D Prabhakaran; S Ebrahim

    2013-01-01

    Background: Food habits and choices in India are shifting due to many factors: changing food markets, fast urbanization, food price inflation, uncertain food production and unequal distribution during the past decade. This study aims to explore food acquisition and intra-household consumption patterns in urban low and middle income (LMI) households in Delhi. Methods: Twenty households were randomly selected from the Center for Cardio-metabolic Risk Reduction in South Asia (CARRS) surveillance...

  19. Food acquisition and intra-household consumption patterns: a study of low and middle income urban households in Delhi, India

    OpenAIRE

    MR Pradhan .; F C Taylor; S Agrawal; D Prabhakaran; S Ebrahim

    2013-01-01

    Background: Food habits and choices in India are shifting due to many factors: changing food markets, fast urbanization, food price inflation, uncertain food production and unequal distribution during the past decade. This study aims to explore food acquisition and intra-household consumption patterns in urban low and middle income (LMI) households in Delhi. Methods: Twenty households were randomly selected from the Center for Cardio-metabolic Risk Reduction in South Asia (CARRS) surveillance...

  20. Organic food product purchase behaviour: a pilot study for urban consumers in the South of Italy

    OpenAIRE

    Gracia, A.; de Magistris, T.

    2013-01-01

    The aim of this paper is to explain factors that influence organic food purchases of urban consumers in the South of Italy. To achieve this goal, a multivariate limited dependent variable model has been specified to simultaneously analyse consumers’ organic food purchases, the intention to purchase organic food products and the level of organic knowledge. This study uses survey data gathered from 200 consumers in Naples in 2003. Results indicate that consumers who are more willing to buy orga...

  1. Food Security Attainment Role of Urban Agriculture: A Case Study ...

    African Journals Online (AJOL)

    user

    The information indicated in Adama Master Plan (1995) reveals that the mean annual .... 'access' marks the ability of a household to get command over. '... enough supply of ..... practices, resource utilization and management of urban farming.

  2. Methods of Evaluation of the State and Efficiency of the Urban Environment

    Science.gov (United States)

    Patrakeyev, I.; Ziborov, V.; Lazorenko-Hevel, N.

    2017-12-01

    Today, humanity is experiencing an "urban age", and therefore issues of good management of energy consumption and energy spent on utilization of waste in cities are becoming particularly acute. In this regard, the working group of the World Energy Council proposed a concept of the "energy balance" of the urban environment. This concept was that the energy produced should cover the energy consumed. Metabolism of the urban environment is so hot and so rarely studied by urban planners. This condition is linked first with the fact that metabolism is nothing more than a network of exchange of physical, energy resources and information. This is the real point of meeting the natural, technological, social, economic processes and their transformation into one another. Metabolism is the most important tool for knowing the real mechanics of the movement of resources in such a complex system as the urban environment. The content of the article is an analysis of significant energy and material flows characterizing the metabolism of the urban environment. We considered in the article a new energy paradigm. This paradigm will help in carrying out research in such areas as reducing the burden on the state of the environment, reducing environmental problems and reducing dependence on fossil fuels. Methods and models of metabolic processes in the urban environment will allow to implement in practice the concept of sustainable development of the urban environment, which is the development of the teaching V. Vernadsky about the noosphere.

  3. Household food insecurity and dietary patterns in rural and urban American Indian families with young children

    Directory of Open Access Journals (Sweden)

    Emily J. Tomayko

    2017-06-01

    Full Text Available Abstract Background High food insecurity has been demonstrated in rural American Indian households, but little is known about American Indian families in urban settings or the association of food insecurity with diet for these families. The purpose of this study was to examine the prevalence of food insecurity in American Indian households by urban-rural status, correlates of food insecurity in these households, and the relationship between food insecurity and diet in these households. Methods Dyads consisting of an adult caregiver and a child (2–5 years old from the same household in five urban and rural American Indian communities were included. Demographic information was collected, and food insecurity was assessed using two validated items from the USDA Household Food Security Survey. Factors associated with food insecurity were examined using logistic regression. Child and adult diets were assessed using food screeners. Coping strategies were assessed through focus group discussions. These cross-sectional baseline data were collected from 2/2013 through 4/2015 for the Healthy Children, Strong Families 2 randomized controlled trial of a healthy lifestyles intervention for American Indian families. Results A high prevalence of food insecurity was determined (61% and was associated with American Indian ethnicity, lower educational level, single adult households, WIC participation, and urban settings (p = 0.05. Food insecure adults had significantly lower intake of vegetables (p < 0.05 and higher intakes of fruit juice (<0.001, other sugar-sweetened beverages (p < 0.05, and fried potatoes (p < 0.001 than food secure adults. Food insecure children had significantly higher intakes of fried potatoes (p < 0.05, soda (p = 0.01, and sports drinks (p < 0.05. Focus group participants indicated different strategies were used by urban and rural households to address food insecurity. Conclusions The prevalence of food insecurity in

  4. Energy demand, poverty and the urban environment in Jordan

    International Nuclear Information System (INIS)

    Jaber, J.O.; Probert, S.D.

    2001-01-01

    This paper presents some insights into the prime problems of energy and related environmental issues as well as urbanisation in Jordan. The country has very limited natural resources: water is scarce; arable land is limited; and fossil-fuel sources are few. Moreover, the population is increasing rapidly. Hence, problems are arising. During the last 30 years, the country has experienced vast changes in its infrastructure with respect to the housing, urbanisation, commerce, agriculture and industry. Such developments have led to increasing demographic stresses: unemployment has increased and poverty is experienced by more than half of the population. The pressures have resulted in a high percentage of the population moving from rural to urban areas and so society is becoming less self-sufficient. At present, energy consumption in the residential sector accounts for about one quarter of the kingdom's fuel consumption. Kerosene, bottled LPG, diesel fuel and electricity are the main forms of energy used by households, but kerosene is still the dominant fuel because about 83% of households depend on it for space and water heating. The use of open fires and/or portable stoves has led to an increasing number of people being killed each year by suffocation or suffering health problems due to the inhalation of fumes and gaseous pollutants. Thus a national plan to achieve energy thrift and protect the environment, as well as accomplish the more rational utilisation of the limited natural resources available, is urgently needed and should be enacted soon. (author)

  5. HOx Radical Behavior in Urban, Biogenic and Mixed Environments

    Science.gov (United States)

    Cantrell, C. A.; Mauldin, L.; Schardt, N.; Mukherjee, A. D.

    2014-12-01

    The importance of HOx radicals in tropospheric chemistry is well-recognized. These roles include control of the lifetimes of a wide variety of trace gases, and control of photochemical ozone formation. The continued advance in understanding comes from laboratory investigations and field observations especially as part of comprehensive measurement campaigns. We participated in two recent observational campaigns aboard the NSF/NCAR C-130 aircraft platform: NOMADSS (Nitrogen, Oxidants, Mercury and Aerosol Distributions, Sources and Sinks) and FRAPPE (Front Range Atmospheric Pollution and Photochemistry Experiment). During these studies, a wide varieties of air masses were sampled ranging from fresh urban to rural both without and without biogenic influence to marine, and including the impacts of emissions from oil and gas extraction and animal production. Among the wide variety of parameters and species related to tropospheric chemistry that were measured, our group made observations of HOx and related species: OH, HO2, HO2+RO2, H2SO4, and stabilized Criegee intermediates (sCIs) using selected ion chemical ionization mass spectrometry. The paper discusses the functional dependence of these species on other measures of the chemical environment (e.g. NO, VOCs, j-values) as well as comparison of model estimates with the observations.

  6. The impact of urban gardens on adequate and healthy food: a systematic review.

    Science.gov (United States)

    Garcia, Mariana T; Ribeiro, Silvana M; Germani, Ana Claudia Camargo Gonçalves; Bógus, Cláudia M

    2018-02-01

    To examine the impacts on food and nutrition-related outcomes resulting from participation in urban gardens, especially on healthy food practices, healthy food access, and healthy food beliefs, knowledge and attitudes. The systematic review identified studies by searching the PubMed, ERIC, LILACS, Web of Science and Embase databases. An assessment of quality and bias risk of the studies was carried out and a narrative summary was produced. Studies published as original articles in peer-reviewed scientific journals in English, Spanish or Portuguese between 2005 and 2015 were included. The studies included were based on data from adult participants in urban gardens. Twenty-four studies were initially selected based on the eligibility criteria, twelve of which were included. There was important heterogeneity of settings, population and assessment methods. Assessment of quality and bias risk of the studies revealed the need for greater methodological rigour. Most studies investigated community gardens and employed a qualitative approach. The following were reported: greater fruit and vegetable consumption, better access to healthy foods, greater valuing of cooking, harvest sharing with family and friends, enhanced importance of organic production, and valuing of adequate and healthy food. Thematic patterns related to adequate and healthy food associated with participation in urban gardens were identified, revealing a positive impact on practices of adequate and healthy food and mainly on food perceptions.

  7. The Ontario Food and Nutrition Strategy: identifying indicators of food access and food literacy for early monitoring of the food environment

    Directory of Open Access Journals (Sweden)

    Beatrice A. Boucher

    2017-09-01

    Full Text Available Introduction: To address challenges Canadians face within their food environments, a comprehensive, multistakeholder, intergovernmental approach to policy development is essential. Food environment indicators are needed to assess population status and change. The Ontario Food and Nutrition Strategy (OFNS integrates the food, agriculture and nutrition sectors, and aims to improve the health of Ontarians through actions that promote healthy food systems and environments. This report describes the process of identifying indicators for 11 OFNS action areas in two strategic directions (SDs: Healthy Food Access, and Food Literacy and Skills. Methods: The OFNS Indicators Advisory Group used a five-step process to select indicators: (1 potential indicators from national and provincial data sources were identified; (2 indicators were organized by SD, action area and data type; (3 selection criteria were identified, pilot tested and finalized; (4 final criteria were applied to refine the indicator list; and (5 indicators were prioritized after reapplication of selection criteria. Results: Sixty-nine potential indicators were initially identified; however, many were individual-level rather than system-level measures. After final application of the selection criteria, one individual-level indicator and six system-level indicators were prioritized in five action areas; for six of the action areas, no indicators were available. Conclusion: Data limitations suggest that available data may not measure important aspects of the food environment, highlighting the need for action and resources to improve system-level indicators and support monitoring of the food environment and health in Ontario and across Canada.

  8. The Ontario Food and Nutrition Strategy: identifying indicators of food access and food literacy for early monitoring of the food environment.

    Science.gov (United States)

    Boucher, Beatrice A; Manafò, Elizabeth; Boddy, Meaghan R; Roblin, Lynn; Truscott, Rebecca

    2017-09-01

    To address challenges Canadians face within their food environments, a comprehensive, multistakeholder, intergovernmental approach to policy development is essential. Food environment indicators are needed to assess population status and change. The Ontario Food and Nutrition Strategy (OFNS) integrates the food, agriculture and nutrition sectors, and aims to improve the health of Ontarians through actions that promote healthy food systems and environments. This report describes the process of identifying indicators for 11 OFNS action areas in two strategic directions (SDs): Healthy Food Access, and Food Literacy and Skills. The OFNS Indicators Advisory Group used a five-step process to select indicators: (1) potential indicators from national and provincial data sources were identified; (2) indicators were organized by SD, action area and data type; (3) selection criteria were identified, pilot tested and finalized; (4) final criteria were applied to refine the indicator list; and (5) indicators were prioritized after reapplication of selection criteria. Sixty-nine potential indicators were initially identified; however, many were individual-level rather than system-level measures. After final application of the selection criteria, one individual-level indicator and six system-level indicators were prioritized in five action areas; for six of the action areas, no indicators were available. Data limitations suggest that available data may not measure important aspects of the food environment, highlighting the need for action and resources to improve system-level indicators and support monitoring of the food environment and health in Ontario and across Canada.

  9. The Impact of a Multi-Level Multi-Component Childhood Obesity Prevention Intervention on Healthy Food Availability, Sales, and Purchasing in a Low-Income Urban Area.

    Science.gov (United States)

    Gittelsohn, Joel; Trude, Angela C; Poirier, Lisa; Ross, Alexandra; Ruggiero, Cara; Schwendler, Teresa; Anderson Steeves, Elizabeth

    2017-11-10

    The multifactorial causes of obesity require multilevel and multicomponent solutions, but such combined strategies have not been tested to improve the community food environment. We evaluated the impact of a multilevel (operating at different levels of the food environment) multicomponent (interventions occurring at the same level) community intervention. The B'more Healthy Communities for Kids (BHCK) intervention worked at the wholesaler ( n = 3), corner store ( n = 50), carryout ( n = 30), recreation center ( n = 28), household ( n = 365) levels to improve availability, purchasing, and consumption of healthier foods and beverages (low-sugar, low-fat) in low-income food desert predominantly African American zones in the city of Baltimore (MD, USA), ultimately intending to lead to decreased weight gain in children (not reported in this manuscript). For this paper, we focus on more proximal impacts on the food environment, and measure change in stocking, sales and purchase of promoted foods at the different levels of the food system in 14 intervention neighborhoods, as compared to 14 comparison neighborhoods. Sales of promoted products increased in wholesalers. Stocking of these products improved in corner stores, but not in carryouts, and we did not find any change in total sales. Children more exposed to the intervention increased their frequency of purchase of promoted products, although improvement was not seen for adult caregivers. A multilevel food environment intervention in a low-income urban setting improved aspects of the food system, leading to increased healthy food purchasing behavior in children.

  10. The Impact of a Multi-Level Multi-Component Childhood Obesity Prevention Intervention on Healthy Food Availability, Sales, and Purchasing in a Low-Income Urban Area

    Directory of Open Access Journals (Sweden)

    Joel Gittelsohn

    2017-11-01

    Full Text Available The multifactorial causes of obesity require multilevel and multicomponent solutions, but such combined strategies have not been tested to improve the community food environment. We evaluated the impact of a multilevel (operating at different levels of the food environment multicomponent (interventions occurring at the same level community intervention. The B’more Healthy Communities for Kids (BHCK intervention worked at the wholesaler (n = 3, corner store (n = 50, carryout (n = 30, recreation center (n = 28, household (n = 365 levels to improve availability, purchasing, and consumption of healthier foods and beverages (low-sugar, low-fat in low-income food desert predominantly African American zones in the city of Baltimore (MD, USA, ultimately intending to lead to decreased weight gain in children (not reported in this manuscript. For this paper, we focus on more proximal impacts on the food environment, and measure change in stocking, sales and purchase of promoted foods at the different levels of the food system in 14 intervention neighborhoods, as compared to 14 comparison neighborhoods. Sales of promoted products increased in wholesalers. Stocking of these products improved in corner stores, but not in carryouts, and we did not find any change in total sales. Children more exposed to the intervention increased their frequency of purchase of promoted products, although improvement was not seen for adult caregivers. A multilevel food environment intervention in a low-income urban setting improved aspects of the food system, leading to increased healthy food purchasing behavior in children.

  11. Linking urban consumers and rural farmers in India: A comparison of traditional and modern food supply chains

    OpenAIRE

    Minten, Bart; Reardon, Thomas; Vandeplas, Anneleen

    2009-01-01

    "Food supply chains are being transformed in a number of developing countries due to widespread changes in urban food demand. To better anticipate the impact of this transformation and thus assist in the design of appropriate policies, it is important to understand the changes that are occurring in these supply chains. In a case study of India, we find that overall urban consumption is increasing; the urban food basket is shifting away from staples toward high-value products; and modern marke...

  12. Functional Limitations, Depression, and Cash Assistance are Associated with Food Insecurity among Older Urban Adults in Mexico City.

    Science.gov (United States)

    Vilar-Compte, Mireya; Martínez-Martínez, Oscar; Orta-Alemán, Dania; Perez-Escamilla, Rafael

    2016-01-01

    To examine factors associated with food insecurity among urban older adults (65 years and older). Three hundred and fifty two older adults attending community centers in a neighborhood of Mexico City were surveyed for food insecurity, functional impairments, health and mental health status, cash-transfer assistance, socio-demographic characteristics, social isolation, and the built food environment. Having at least primary education and receiving cash-transfers were significantly associated with a lower probability of being moderately-severely food insecure (OR=0.478 and 0.597, respectively). The probability of moderate-severe food insecurity was significantly higher among elderly at risk of depression (OR=2.843), those with at least one activity of daily living impaired (OR=2.177) and those with at least one instrumental activity of daily living impaired (OR=1.785). Higher educational attainment and cash-transfers may have a positive influence on reducing food insecurity. Depression and functional limitations may increase the likelihood of food insecurity among older adults.

  13. Food environments of young people: linking individual behaviour to environmental context.

    Science.gov (United States)

    Tyrrell, Rachel L; Greenhalgh, Fiona; Hodgson, Susan; Wills, Wendy J; Mathers, John C; Adamson, Ashley J; Lake, Amelia A

    2017-03-01

    We aimed to identify and characterize the food environments from which young people obtain food and to explore associations between the type of food environment and food intakes. Young people (n = 86, mean age 17 years; combined data of two sequential pilot studies (collected in 2008-09) and a study conducted in 2011-12) recorded in 4-day self-complete food diaries what food they consumed and where food was sourced. Nutrient, fruit and vegetable intake was calculated according to the source of food, categorized using a food environment classification tool. Over 4 days, respondents sourced food from an average of 4.3 different food environments. Home food was used daily and was more favourable in terms of nutrient profile than out-of-home food. Food sourced from specialist outlets, convenience stores and retail bakers had the highest energy density. Food from retail bakers and 'takeaway and fast food' outlets were the richest sources of fat while vending machines and convenience stores had the highest percentage of energy from sugar. This work provides details of 'where' young people obtain food and the nutritional consequences of choosing those food environments. While home food was a significant contributor to total dietary intake, food was obtained from a broad range of environments; particularly takeaway, fast food and education establishments. © The Author 2016. Published by Oxford University Press on behalf of Faculty of Public Health. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  14. Climate Change, Global Food Markets, and Urban Unrest

    Science.gov (United States)

    2013-02-01

    Francis Gavin 512-471-6267 3. DATES COVERED (From - To) Standard Form 298 (Rev 8/98) Prescribed by ANSI Std. Z39.18 - Climate Change, Global Food...Russia led then-President Dmitry Medvedev to impose export restrictions on wheat, barley, and rye . Food security is fundamental to human security. Prior...how much food is grown and where it is grown. Second, climate change will increase the frequency of localized crop failures due to more frequent

  15. Measuring the Food Environment: A Systematic Technique for Characterizing Food Stores Using Display Counts

    Directory of Open Access Journals (Sweden)

    Cassandra Miller

    2012-01-01

    Full Text Available Marketing research has documented the influence of in-store characteristics—such as the number and placement of display stands—on consumer purchases of a product. However, little information exists on this topic for key foods of interest to those studying the influence of environmental changes on dietary behavior. This study demonstrates a method for characterizing the food environment by measuring the number of separate displays of fruits, vegetables, and energy-dense snack foods (including chips, candies, and sodas and their proximity to cash registers in different store types. Observations in New Orleans stores (N=172 in 2007 and 2008 revealed significantly more displays of energy-dense snacks than of fruits and vegetables within all store types, especially supermarkets. Moreover, supermarkets had an average of 20 displays of energy-dense snacks within 1 meter of their cash registers, yet none of them had even a single display of fruits or vegetables near their cash registers. Measures of the number of separate display stands of key foods and their proximity to a cash register can be used by researchers to better characterize food stores and by policymakers to address improvements to the food environment.

  16. The future of global urbanization and the environment

    Science.gov (United States)

    Rob McDonald; Burak Guneralp; Wayne Zipperer; Peter Marcotullio

    2014-01-01

    Using findings of the Cities and Biodiversity Outlook (CBO), we propose three specific solutions to mitigate the loss ofecosystem services and biodiversity in our urban and urbanizing landscapes. The CBO identified continued loss of criticalhabitats for biodiversity conservation and degradation of many important ecosystem services due to...

  17. Vulnerability Identification and Resilience Enhancements of Urban Environments

    NARCIS (Netherlands)

    Fischer, K.; Riedel, W.; Häring, I.; Nieuwenhuijs, A.H.; Crabbe, S.; Trojaborg, S.; Hynes, W.; Müllers, I.

    2012-01-01

    Steadily increasing number of the world’s population is living in ur-ban centres. The issue of security and citizen safety in densely populated areas is a growing concern. Considering terrorism and large scale accident scenarios, natural disasters and crime, urban planning practice must be

  18. Geomorphic Assessment of Floods within the Urban Environment of ...

    African Journals Online (AJOL)

    This study examined urban geomorphic conditions that lead to flooding in urban areas of ... the elimination of vegetation cover as well as deficient drainage networks ... Department of Geography & Resource Development, University of Ghana, Legon, .... A number of case studies from different parts of the world dealing.

  19. Urban wind turbines. Guidelines for small wind turbines in the built environment

    International Nuclear Information System (INIS)

    Cace, J.; Ter Horst, E.; Syngellakis, K.; Niel, M.; Clement, P.; Heppener, R.; Peirano, E.

    2007-02-01

    The objective of the WINEUR project (Wind Energy Integration in the Urban Environment) is to determine the deployability of small wind turbines in built environments while identifying the current significant constraints and possible solutions. The purpose of this document is to Inform the stakeholders about the state of the development of small wind turbines for the built environment; Provide practical guidelines to actors dealing with installation of small wind turbines in urban areas; and Provide recommendations for future products and for market development

  20. Fast-food exposure around schools in urban Adelaide.

    Science.gov (United States)

    Coffee, Neil T; Kennedy, Hannah P; Niyonsenga, Theo

    2016-12-01

    To assess whether exposure to fast-food outlets around schools differed depending on socio-economic status (SES). Binary logistic regression was used to investigate the presence and zero-inflated Poisson regression was used for the count (due to the excess of zeroes) of fast food within 1000 m and 15000 m road network buffers around schools. The low and middle SES tertiles were combined due to a lack of significant variation as the 'disadvantaged' group and compared with the high SES tertile as the 'advantaged' group. School SES was expressed using the 2011 Australian Bureau of Statistics, socio-economic indices for areas, index of relative socio-economic disadvantage. Fast-food data included independent takeaway food outlets and major fast-food chains. Metropolitan Adelaide, South Australia. A total of 459 schools were geocoded to the street address and 1000 m and 1500 m road network distance buffers calculated. There was a 1·6 times greater risk of exposure to fast food within 1000 m (OR=1·634; 95 % 1·017, 2·625) and a 9·5 times greater risk of exposure to a fast food within 1500 m (OR=9·524; 95 % CI 3·497, 25·641) around disadvantaged schools compared with advantaged schools. Disadvantaged schools were exposed to more fast food, with more than twice the number of disadvantaged schools exposed to fast food. The higher exposure to fast food near more disadvantaged schools may reflect lower commercial land cost in low-SES areas, potentially creating more financially desirable investments for fast-food developers.

  1. Fostering sustainable urban-rural linkages through local food supply

    NARCIS (Netherlands)

    Viegas Preiss, Potira; Charão-Marques, Flávia; Wiskerke, Johannes S.C.

    2017-01-01

    The mainstream system of food supply has been heavily criticized in the last years due to its social and environmental impacts. Direct food purchasing schemes have emerged in recent decades as a form of supply that may be more ecologically sound and socially just, while allowing for a closer

  2. Media art and the urban environment engendering public engagement with urban ecology

    CERN Document Server

    2015-01-01

    This illuminating text formally appraises the innovative ways new media artists engage urban ecology. Highlighting the role of artists as agents of technological change, the work reviews new modes of seeing, representing, and connecting within the urban setting. Across fourteen chapters, the book describes how state-of-the-art technology can be exploited in order to create artworks that transcend the technology’s original purpose, thus expanding the language of environmental engagement whilst also demonstrating a clear understanding of the societal issues and values being addressed. Topics and features: Explores urban ecology and its engagement, surveying a diverse range of artists, artworks and performances Assesses how data from smart cities may be used to create artworks that can recast residents’ understanding of urban space Examines dynamic transformations of urban space through the reimagining of urban information Discusses the engagement of urban residents with street art, including collaborative c...

  3. Adult BMI and Access to Built Environment Resources in a High-Poverty, Urban Geography.

    Science.gov (United States)

    Tung, Elizabeth L; Peek, Monica E; Makelarski, Jennifer A; Escamilla, Veronica; Lindau, Stacy T

    2016-11-01

    The purpose of this study is to examine the relationship between BMI and access to built environment resources in a high-poverty, urban geography. Participants (aged ≥35 years) were surveyed between November 2012 and July 2013 to examine access to common health-enabling resources (grocers, outpatient providers, pharmacies, places of worship, and physical activity resources). Survey data were linked to a contemporaneous census of built resources. Associations between BMI and access to resources (potential and realized) were examined using independent t-tests and multiple linear regression. Data analysis was conducted in 2014-2015. Median age was 53.8 years (N=267, 62% cooperation rate). Obesity (BMI ≥30) prevalence was 54.9%. BMI was not associated with potential access to resources located nearest to home. Nearly all participants (98.1%) bypassed at least one nearby resource type; half bypassed nearby grocers (realized access >1 mile from home). Bypassing grocers was associated with a higher BMI (p=0.03). Each additional mile traveled from home to a grocer was associated with a 0.9-higher BMI (95% CI=0.4, 1.3). Quality and affordability were common reasons for bypassing resources. Despite potential access to grocers in a high-poverty, urban region, half of participants bypassed nearby grocers to access food. Bypassing grocers was associated with a higher BMI. Copyright © 2016 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.

  4. Urban microbiomes and urban ecology: how do microbes in the built environment affect human sustainability in cities?

    Science.gov (United States)

    King, Gary M

    2014-09-01

    Humans increasingly occupy cities. Globally, about 50% of the total human population lives in urban environments, and in spite of some trends for deurbanization, the transition from rural to urban life is expected to accelerate in the future, especially in developing nations and regions. The Republic of Korea, for example, has witnessed a dramatic rise in its urban population, which now accounts for nearly 90% of all residents; the increase from about 29% in 1955 has been attributed to multiple factors, but has clearly been driven by extraordinary growth in the gross domestic product accompanying industrialization. While industrialization and urbanization have unarguably led to major improvements in quality of life indices in Korea and elsewhere, numerous serious problems have also been acknowledged, including concerns about resource availability, water quality, amplification of global warming and new threats to health. Questions about sustainability have therefore led Koreans and others to consider deurbanization as a management policy. Whether this offers any realistic prospects for a sustainable future remains to be seen. In the interim, it has become increasingly clear that built environments are no less complex than natural environments, and that they depend on a variety of internal and external connections involving microbes and the processes for which microbes are responsible. I provide here a definition of the urban microbiome, and through examples indicate its centrality to human function and wellbeing in urban systems. I also identify important knowledge gaps and unanswered questions about urban microbiomes that must be addressed to develop a robust, predictive and general understanding of urban biology and ecology that can be used to inform policy-making for sustainable systems.

  5. Challenges in assessing food environments in northern and remote communities in Canada.

    Science.gov (United States)

    Skinner, Kelly; Burnett, Kristin; Williams, Patricia; Martin, Debbie; Stothart, Christopher; LeBlanc, Joseph; Veeraraghavan, Gigi; Sheedy, Amanda

    2016-06-09

    Effective tools for retail food environments in northern and remote communities are lacking. This paper examines the challenges of conducting food environment assessments in northern and remote communities in Canada encountered during our experience with a food costing project. One of the goals of the Paying for Nutrition in the North project is to develop guidelines to improve current food costing tools for northern Canada. Paying for Nutrition illustrates the complex context of measuring food environments in northern and remote communities. Through the development of a food costing methodology guide to assess northern food environments, several contextual issues emerged, including retail store oligopolies in communities; the importance of assessing food quality; informal social food economies; and the challenge of costing the acquisition and consumption of land- and water-based foods. Food environment measures designed for northern and remote communities need to reflect the geographic context in which they are being employed and must include input from local residents.

  6. The Rationale behind Small Food Store Interventions in Low-Income Urban Neighborhoods: Insights from New Orleans1–3

    Science.gov (United States)

    Bodor, J. Nicholas; Ulmer, Vanessa M.; Futrell Dunaway, Lauren; Farley, Thomas A.; Rose, Donald

    2010-01-01

    Environmental approaches to the obesity problem in the US have garnered favor due to growing evidence that changes to the environment are at the root of the epidemic. Low-income urban neighborhoods, where obesity rates are disproportionately high, typically lack supermarkets yet have a high density of small food stores. This may increase the risk for unhealthy diets and obesity for neighborhood residents, because small stores carry mostly energy-dense foods and few fruits and vegetables. This paper pulls together various studies and pilot work conducted in New Orleans to explore the rationale behind small store interventions. Many low-income residents in New Orleans live within walking distance of small food stores and shop at them frequently. Marketing research has documented that changes to in-store shelf space and displays of specific foods affect the sales of these foods. Initiatives in New Orleans and elsewhere have demonstrated some success with improving healthy food availability in small stores, and an intercept survey of customers at small stores suggests that customers would purchase more fruits and vegetables if available. Efforts to encourage small store operators to offer a healthier mix of foods may, in the end, depend on the profitability of such changes. Evidence from a typical small store in New Orleans indicates that a greater percentage of gross profits come from snack foods and beverages than from fruits and vegetables. More research is needed to better understand the financial operations of small food stores and whether altering the mix of foods is economically feasible. PMID:20410086

  7. The rationale behind small food store interventions in low-income urban neighborhoods: insights from New Orleans.

    Science.gov (United States)

    Bodor, J Nicholas; Ulmer, Vanessa M; Dunaway, Lauren Futrell; Farley, Thomas A; Rose, Donald

    2010-06-01

    Environmental approaches to the obesity problem in the US have garnered favor due to growing evidence that changes to the environment are at the root of the epidemic. Low-income urban neighborhoods, where obesity rates are disproportionately high, typically lack supermarkets yet have a high density of small food stores. This may increase the risk for unhealthy diets and obesity for neighborhood residents, because small stores carry mostly energy-dense foods and few fruits and vegetables. This paper pulls together various studies and pilot work conducted in New Orleans to explore the rationale behind small store interventions. Many low-income residents in New Orleans live within walking distance of small food stores and shop at them frequently. Marketing research has documented that changes to in-store shelf space and displays of specific foods affect the sales of these foods. Initiatives in New Orleans and elsewhere have demonstrated some success with improving healthy food availability in small stores, and an intercept survey of customers at small stores suggests that customers would purchase more fruits and vegetables if available. Efforts to encourage small store operators to offer a healthier mix of foods may, in the end, depend on the profitability of such changes. Evidence from a typical small store in New Orleans indicates that a greater percentage of gross profits come from snack foods and beverages than from fruits and vegetables. More research is needed to better understand the financial operations of small food stores and whether altering the mix of foods is economically feasible.

  8. The Correlation of Geo-Ecological Environment and Mountain Urban planning

    Science.gov (United States)

    Yang, Chun; Zeng, Wei

    2018-01-01

    As a special area with the complex geological structure, mountain city is more prone to geological disasters. Due to air pollution, ground subsidence, serious water pollution, earthquakes and floods geo-ecological environment problems have become increasingly serious, mountain urban planning is facing more severe challenges. Therefore, this article bases on the correlation research of geo-ecological environment and mountain urban planning, and re-examins mountain urban planning from the perspective of geo-ecological, coordinates the relationship between the human and nature by geo-ecological thinking, raises the questions which urban planning need to pay attention. And advocates creating an integrated system of geo-ecological and mountain urban planning, analysis the status and dynamics of present mountain urban planning.

  9. For Hunger-proof Cities: Sustainable Urban Food Systems | CRDI ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    As well, hunger and malnutrition are on the increase worldwide, as the ... community-supported agriculture and cooperation between urban and rural populations. ... la conférence d'une journée intitulée The Global Need for Formal Child Care.

  10. Development of organic fertilizers from food market waste and urban gardening by composting in Ecuador.

    Directory of Open Access Journals (Sweden)

    J Jara-Samaniego

    Full Text Available Currently, the management of urban waste streams in developing countries is not optimized yet, and in many cases these wastes are disposed untreated in open dumps. This fact causes serious environmental and health problems due to the presence of contaminants and pathogens. Frequently, the use of specific low-cost strategies reduces the total amount of wastes. These strategies are mainly associated to the identification, separate collection and composting of specific organic waste streams, such as vegetable and fruit refuses from food markets and urban gardening activities. Concretely, in the Chimborazo Region (Ecuador, more than 80% of municipal solid waste is dumped into environment due to the lack of an efficient waste management strategy. Therefore, the aim of this study was to develop a demonstration project at field scale in this region to evaluate the feasibility of implanting the composting technology not only for the management of the organic waste fluxes from food market and gardening activities to be scaled-up in other developing regions, but also to obtain an end-product with a commercial value as organic fertilizer. Three co-composting mixtures were prepared using market wastes mixed with pruning of trees and ornamental palms as bulking agents. Two piles were created using different proportions of market waste and prunings of trees and ornamental palms: pile 1 (50:33:17 with a C/N ratio 25; pile 2: (60:30:10 with C/N ratio 24 and pile 3 (75:0:25 with C/N ratio 33, prepared with market waste and prunings of ornamental palm. Throughout the process, the temperature of the mixtures was monitored and organic matter evolution was determined using thermogravimetric and chemical techniques. Additionally, physico-chemical, chemical and agronomic parameters were determined to evaluate compost quality. The results obtained indicated that all the piles showed a suitable development of the composting process, with a significant organic matter

  11. Development of organic fertilizers from food market waste and urban gardening by composting in Ecuador.

    Science.gov (United States)

    Jara-Samaniego, J; Pérez-Murcia, M D; Bustamante, M A; Paredes, C; Pérez-Espinosa, A; Gavilanes-Terán, I; López, M; Marhuenda-Egea, F C; Brito, H; Moral, R

    2017-01-01

    Currently, the management of urban waste streams in developing countries is not optimized yet, and in many cases these wastes are disposed untreated in open dumps. This fact causes serious environmental and health problems due to the presence of contaminants and pathogens. Frequently, the use of specific low-cost strategies reduces the total amount of wastes. These strategies are mainly associated to the identification, separate collection and composting of specific organic waste streams, such as vegetable and fruit refuses from food markets and urban gardening activities. Concretely, in the Chimborazo Region (Ecuador), more than 80% of municipal solid waste is dumped into environment due to the lack of an efficient waste management strategy. Therefore, the aim of this study was to develop a demonstration project at field scale in this region to evaluate the feasibility of implanting the composting technology not only for the management of the organic waste fluxes from food market and gardening activities to be scaled-up in other developing regions, but also to obtain an end-product with a commercial value as organic fertilizer. Three co-composting mixtures were prepared using market wastes mixed with pruning of trees and ornamental palms as bulking agents. Two piles were created using different proportions of market waste and prunings of trees and ornamental palms: pile 1 (50:33:17) with a C/N ratio 25; pile 2: (60:30:10) with C/N ratio 24 and pile 3 (75:0:25) with C/N ratio 33), prepared with market waste and prunings of ornamental palm. Throughout the process, the temperature of the mixtures was monitored and organic matter evolution was determined using thermogravimetric and chemical techniques. Additionally, physico-chemical, chemical and agronomic parameters were determined to evaluate compost quality. The results obtained indicated that all the piles showed a suitable development of the composting process, with a significant organic matter decomposition

  12. The role of the local retail food environment in fruit, vegetable and sugar-sweetened beverage consumption in Brazil.

    Science.gov (United States)

    Duran, Ana Clara; de Almeida, Samuel Luna; Latorre, Maria do Rosario D O; Jaime, Patricia Constante

    2016-04-01

    To examine the relationship between the local retail food environment and consumption of fruits and vegetables (FV) and sugar-sweetened beverages (SSB) in São Paulo, Brazil, as well as the moderation effects of income in the studied relationships. Cross-sectional study design that drew upon neighbourhood- and individual-level data. For each participant, community (density and proximity) and community food environment (availability, variety, quality and price) measures of FV and SSB were assessed in retail food stores and specialized fresh produce markets within 1·6 km of their homes. Poisson generalized estimating equations (GEE) were used to model the associations of food consumption with food environment measures, adjusted by individual-level characteristics. São Paulo, Brazil. Adults (n 1842) residing in the same census tracts (n 52) in São Paulo, Brazil as those where the neighbourhood-level measures were taken. FV availability in neighbourhoods was associated with regular FV consumption (≥5 times/week; prevalence ratio=1·41; 95 % CI 1·19, 1·67). Regular FV consumption prevalence was significantly lower among lower-income individuals living in neighbourhoods with fewer supermarkets and fresh produce markets (P-interaction food environment is associated with FV and SSB consumption in a Brazilian urban sample.

  13. Environment of estates and crime prevention through urban environment formation and modification

    Directory of Open Access Journals (Sweden)

    Matlovičová Kvetoslava

    2016-01-01

    Full Text Available Due to the significant impact of criminality on the quality of life in a particular territory, criminality is attracting more and more attention from local authorities which are trying to reduce it. In this respect, the concept of CPTED (Crime Prevention Through Environmental Design which is quite often used out­side of Slovakia and is based on prevention of criminality through the appropriate design of urban environments, seems to be useful. The study offers the characteristics of CPTED principles and also suggests possibilities for its application within innercity criminality on model territories of the city of Prešov (Slovakia as an usable way of reducing crime in other mainly East-central European cities.

  14. Impacts of fast food and food retail environment on overweight and obesity in China: a multilevel latent class cluster approach

    OpenAIRE

    Zhang XiaoYong, Xiaoyong; Lans, van der, I.A.; Dagevos, H.

    2012-01-01

    Objective To simultaneously identify consumer segments based on individual-level consumption and community-level food retail environment data and to investigate whether the segments are associated with BMI and dietary knowledge in China. Design A multilevel latent class cluster model was applied to identify consumer segments based not only on their individual preferences for fast food, salty snack foods, and soft drinks and sugared fruit drinks, but also on the food retail environment at the ...

  15. The neurobiology of food intake in an obesogenic environment.

    Science.gov (United States)

    Berthoud, Hans-Rudolf

    2012-11-01

    The objective of this non-systematic review of the literature is to highlight some of the neural systems and pathways that are affected by the various intake-promoting aspects of the modern food environment and explore potential modes of interaction between core systems such as hypothalamus and brainstem primarily receptive to internal signals of fuel availability and forebrain areas such as the cortex, amygdala and meso-corticolimbic dopamine system, primarily processing external signals. The modern lifestyle with its drastic changes in the way we eat and move puts pressure on the homoeostatic system responsible for the regulation of body weight, which has led to an increase in overweight and obesity. The power of food cues targeting susceptible emotions and cognitive brain functions, particularly of children and adolescents, is increasingly exploited by modern neuromarketing tools. Increased intake of energy-dense foods high in fat and sugar is not only adding more energy, but may also corrupt neural functions of brain systems involved in nutrient sensing as well as in hedonic, motivational and cognitive processing. It is concluded that only long-term prospective studies in human subjects and animal models with the capacity to demonstrate sustained over-eating and development of obesity are necessary to identify the critical environmental factors as well as the underlying neural systems involved. Insights from these studies and from modern neuromarketing research should be increasingly used to promote consumption of healthy foods.

  16. Urban environments of the entrepreneurial city : from Aker Brygge to Tjuvholmen

    OpenAIRE

    Ellefsen, Halvor Weider

    2017-01-01

    The focus of this thesis is the regeneration of industrial harbor and brownfield areas to properties primed for urban development along the urban waterfront of Oslo, Norway. The project revolves around an empirical study of Tjuvholmen, a privately operated waterfront development scheme, centrally located in the city. The point of departure for the thesis is to explore how Tjuvholmen was conceptualized as urban environment, within a particular model of political-economic cond...

  17. From Global Sustainability to Inclusive Education: Understanding urban children's ideas about the food system

    Science.gov (United States)

    Calabrese Barton, Angela; Koch, Pamela D.; Contento, Isobel R.; Hagiwara, Sumi

    2005-08-01

    The purpose of this paper is to report our findings from a qualitative study intended to develop our understandings of: what high-poverty urban children understand and believe about food and food systems; and how such children transform and use that knowledge in their everyday lives (i.e. how do they express their scientific literacies including content understandings, process understandings, habits of mind in these content areas). This qualitative study is part of a larger study focused on understanding and developing science and nutritional literacies among high-poverty urban fourth-grade through sixth-grade students and their teachers and caregivers.

  18. Eating Habits and Food Preferences of Elementary School Students in Urban and Suburban Areas of Daejeon

    Science.gov (United States)

    Park, Eun-Suk; Lee, Je-Hyuk

    2015-01-01

    This study investigated the dietary habits and food preferences of elementary school students. The survey was conducted by means of a questionnaire distributed to 4th and 5th grade elementary school students (400 boys and 400 girls) in urban and suburban areas of Daejeon. The results of this study were as follows: male students in urban areas ate breakfast, unbalanced diets, and dairy products more frequently than male students in suburban areas (p eating habits and food preferences of elementary school students according to the place of residence. PMID:26251838

  19. Keeping Up Appearances: Perceptions of Street Food Safety in Urban Kumasi, Ghana

    Science.gov (United States)

    Olsen, Mette; Bakang, John Abubakar; Takyi, Harriet; Konradsen, Flemming; Samuelsen, Helle

    2008-01-01

    The growing street food sector in low-income countries offers easy access to inexpensive food as well as new job opportunities for urban residents. While this development is positive in many ways, it also presents new public health challenges for the urban population. Safe food hygiene is difficult to practice at street level, and outbreaks of diarrheal diseases have been linked to street food. This study investigates local perceptions of food safety among street food vendors and their consumers in Kumasi, Ghana in order to identify the most important aspects to be included in future public health interventions concerning street food safety. This qualitative study includes data from a triangulation of various qualitative methods. Observations at several markets and street food vending sites in Kumasi were performed. Fourteen street food vendors were chosen for in-depth studies, and extensive participant observations and several interviews were carried out with case vendors. In addition, street interviews and Focus Group Discussions were carried out with street food customers. The study found that although vendors and consumers demonstrated basic knowledge of food safety, the criteria did not emphasize basic hygiene practices such as hand washing, cleaning of utensils, washing of raw vegetables, and quality of ingredients. Instead, four main food selection criteria could be identified and were related to (1) aesthetic appearance of food and food stand, (2) appearance of the food vendor, (3) interpersonal trust in the vendor, and (4) consumers often chose to prioritize price and accessibility of food—not putting much stress on food safety. Hence, consumers relied on risk avoidance strategies by assessing neatness, appearance, and trustworthiness of vendor. Vendors were also found to emphasize appearance while vending and to ignore core food safety practices while preparing food. These findings are discussed in this paper using social and anthropological theoretical

  20. assessment of expenditure on food in nigerian urban households ...

    African Journals Online (AJOL)

    USER

    2014-04-02

    Apr 2, 2014 ... through a structured questionnaire. Descriptive statistics, food security index, multiple linear regression and logit regression were employed to analyze data. ... It is a situation where households are not at risk of losing access.

  1. Urban food systems governance for NCD prevention in Africa | IDRC ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    For instance, global fast food franchises are expanding aggressively across major cities in Africa. ... Ultimately, the project aims to support local governments and community stakeholders in each study site to use the knowledge ... Total funding.

  2. Characteristics of Urban Food insecurity: The Case of Kinshasa

    African Journals Online (AJOL)

    Franklin Obeng-Odoom

    household food consumption in Kinshasa carried out by various surveys. ... of Economics and Rural Development at Gembloux Agricultural University (ULg - GxABT) since 1992. His ..... The most widely consumed beverages in these areas are.

  3. Aerospace Operations in Urban Environments: Exploring New Concepts

    National Research Council Canada - National Science Library

    Vick, Alan

    2000-01-01

    .... Peace operations in Somalia, especially the deaths of 18 U.S. servicemen and the wounding of almost 100 others on October 3, 1993, profoundly influenced the American public's perceptions of modern urban combat in the developing world...

  4. Thirsty Cities: Urban Environments and Water Supply in Latin America

    International Development Research Centre (IDRC) Digital Library (Canada)

    Many cities in Latin America and the Caribbean are experiencing a water crisis as sources become exhausted or degraded. Urbanization, deteriorating infrastructures with a lack of funds for repairs, and inadequate polices are conspiring to cause water shortages.

  5. Border Patrol: Professional Jurisdictions in Sustainable Urban Environments

    OpenAIRE

    Rebecca Henn

    2013-01-01

    According to the United Nations, our world is becoming more populated, more urban, more connected, more globalized, and more complex. With this physical and social complexity comes a need for increased coordination in negotiating our urban futures. Environmental design and planning professionals have worked for decades according to traditional institutionalized role structures. Sustainability—in considering a wider variety of stakeholders—promises not only to include more members in the typic...

  6. Role of Green Spaces in Favorable Microclimate Creating in Urban Environment (Exemplified by Italian Cities)

    Science.gov (United States)

    Finaeva, O.

    2017-11-01

    The article represents a brief analysis of factors that influence the development of an urban green space system: territorial and climatic conditions, cultural and historical background as well as the modern strategy of historic cities development. The introduction defines the concept of urban greening, green spaces and green space distribution. The environmental parameters influenced by green spaces are determined. By the example of Italian cities the principles of the urban greening system development are considered: the historical aspects of formation of the urban greening system in Italian cities are analyzed, the role of green spaces in the formation of the urban environment structure and the creation of a favorable microclimate is determined, and a set of measures aimed at its improvement is highlighted. The modern principles of urban greening systems development and their characteristic features are considered. Special attention is paid to the interrelation of architectural and green structures in the formation of a favorable microclimate and psychological comfort in the urban environment; various methods of greening are considered by the example of existing architectural complexes depending on the climate of the area and the landscape features. The examples for the choice of plants and the application of compositional techniques are given. The results represent the basic principles of developing an urban green spaces system. The conclusion summarizes the techniques aimed at the microclimate improvement in the urban environment.

  7. Environment, urban poverty and scavenging: review of relationship and its effectiveness

    International Nuclear Information System (INIS)

    Chamhuri Siwar; Amzad Hossain; Norshamleeda Chamhuri

    2001-01-01

    Urban poverty and environment is interrelated to each other. Environmental degradation is a crucial factor for urban poverty and vice-versa. The generation of solid waste all over the world has reached an alarming proportion and constitutes one of the world's greatest sources of environmental degradation (fagan, 1974). Solid waste is one of the three major environmental problems faced by municipalities in Malaysia (World Bank, 1993) which is one of the major cause or contributor to urban poverty. However, urban solid waste consists of two strata such as source of environmental degradation and income generating agents for urban poor scavengers. In Malaysia, full-time and part-time scavengers are recycling 6% of total generated residential solid waste in some selected areas other wise its emitted or disposed to the environment. On the other hand, by doing this work full-time scavengers are earning wages of RM750 per month which is equal to that of the majority of Third world urbanities; part-time scavengers are earning 33% of their daily income. This paper discusses a theoretical framework of the relationship of environment and urban poverty. Policies, issues and some case studies of scavenging as a means of urban poverty reduction and environmental improvements of sustainable urban development are also explored. (Author)

  8. Perceptions of impact: Invasive alien plants in the urban environment.

    Science.gov (United States)

    Potgieter, Luke J; Gaertner, Mirijam; O'Farrell, Patrick J; Richardson, David M

    2018-06-08

    Many alien plant species are introduced to urban areas to create, augment or restore ecosystem services (ES). However, many of these species spread beyond original plantings, sometimes causing negative effects on existing ES or creating novel ecosystem disservices (EDS). An understanding of the perceptions of urban residents regarding invasive alien plants (IAPs) and the ES and EDS they provide is needed for the effective prioritisation of IAP management efforts in cities. Using the city of Cape Town, South Africa as a case study, we conducted questionnaire-based surveys (online and face-to-face) to determine the perceptions of urban residents regarding IAPs and their capacity to provide ES and EDS. Most urban residents perceive IAPs negatively (i.e. agreeing that they create EDS), but many recognise their importance in providing ES. Although most residents are not opposed to the management of IAPs, such actions are not perceived as a high priority relative to other environmental problems. Socio-demographic variables such as age, education, environmental awareness, and ethnicity shape urban residents' perceptions of IAPs. Older, more educated respondents were more likely to perceive IAPs negatively, while respondents with greater environmental awareness were aware of the benefits provided by IAPs. This study highlights the need to integrate public perceptions into the planning and management of IAPs and emphasises the importance of including ES assessments into the decision-making process, particularly in urban areas. Copyright © 2018 Elsevier Ltd. All rights reserved.

  9. The neighborhood food environment: sources of historical data on retail food stores

    Directory of Open Access Journals (Sweden)

    Gonzalez Alma A

    2006-07-01

    Full Text Available Abstract With the rapidly increasing prevalence of obesity in the United States, and the minimal success of education-based interventions, there is growing interest in understanding the role of the neighborhood food environment in determining dietary behavior. This study, as part of a larger study, identifies historical data on retail food stores, evaluates strengths and limitations of the data for research, and assesses the comparability of historical retail food store data from a government and a commercial source. Five government and commercial listings of retail food stores were identified. The California State Board of Equalization (SBOE database was selected and then compared to telephone business directory listings. The Spearman's correlation coefficient was used to assess the congruency of food store counts per census tract between the SBOE and telephone business directory databases. The setting was four cities in Northern California, 1979–1990. The SBOE and telephone business directory databases listed 127 and 351 retail food stores, respectively. The SBOE listed 36 stores not listed by the telephone business directories, while the telephone business directories listed 260 stores not listed by the SBOE. Spearman's correlation coefficients between estimates of stores per census tract made from the SBOE listings and those made from the telephone business directory listings were approximately 0.5 (p

  10. Urban thermal environment and its biophysical parameters derived from satellite remote sensing imagery

    Science.gov (United States)

    Zoran, Maria A.; Savastru, Roxana S.; Savastru, Dan M.; Tautan, Marina N.; Baschir, Laurentiu V.

    2013-10-01

    In frame of global warming, the field of urbanization and urban thermal environment are important issues among scientists all over the world. This paper investigated the influences of urbanization on urban thermal environment as well as the relationships of thermal characteristics to other biophysical variables in Bucharest metropolitan area of Romania based on satellite remote sensing imagery Landsat TM/ETM+, time series MODIS Terra/Aqua data and IKONOS acquired during 1990 - 2012 period. Vegetation abundances and percent impervious surfaces were derived by means of linear spectral mixture model, and a method for effectively enhancing impervious surface has been developed to accurately examine the urban growth. The land surface temperature (Ts), a key parameter for urban thermal characteristics analysis, was also retrieved from thermal infrared band of Landsat TM/ETM+, from MODIS Terra/Aqua datasets. Based on these parameters, the urban growth, urban heat island effect (UHI) and the relationships of Ts to other biophysical parameters have been analyzed. Results indicated that the metropolitan area ratio of impervious surface in Bucharest increased significantly during two decades investigated period, the intensity of urban heat island and heat wave events being most significant. The correlation analyses revealed that, at the pixel-scale, Ts possessed a strong positive correlation with percent impervious surfaces and negative correlation with vegetation abundances at the regional scale, respectively. This analysis provided an integrated research scheme and the findings can be very useful for urban ecosystem modeling.

  11. Coupling biogeochemical cycles in urban environments: Ecosystemservices, green solutions, and misconceptions

    Science.gov (United States)

    Diane Pataki; Margaret Carreiro; Jennifer Cherrier; Nancy Grulke; Viniece Jennings; Stephanie Pincetl; Richard Pouyat; Thomas Whitlow; Wayne. Zipperer

    2011-01-01

    Urban green space is purported to offset greenhouse-gas (GHG) emissions, remove air and water pollutants, cool local climate, and improve public health. To use these services, municipalities have focused efforts on designing and implementing ecosystem-services-based "green infrastructure" in urban environments. In some cases the environmental benefits of this...

  12. Effect of ecosystem services provided by urban greenb infrastructure on indoor environment: a literature review

    NARCIS (Netherlands)

    Wang, Y.; Bakker, F.; Groot, de R.S.; Woertche, H.

    2014-01-01

    The influence of urban green infrastructure on the indoor environment and the effects on human comfort and economic consequences are still unclear. This paper gives a systematic overview of the relationship, in terms of so-called ‘ecosystem services’, between urban green infrastructure and the

  13. Using a Local Greenway to Study the River Environment and Urban Landscape

    Science.gov (United States)

    Lackstrom, Kirsten; Stroup, Laura J.

    2009-01-01

    Greenways are prominent features of many urban landscapes and synthesize several geographic topics: human-environment interactions, urban ecosystems, and the promotion of sustainability within riverine corridors. Greenways are easily accessible and provide an opportunity for students at various grade levels to study interactions across physical…

  14. Model to predict the radiological consequences of transportation of radioactive material through an urban environment

    International Nuclear Information System (INIS)

    Taylor, J.M.; Daniel, S.L.; DuCharme, A.R.; Finley, N.N.

    1977-01-01

    A model has been developed which predicts the radiological consequences of the transportation of radioactive material in and around urban environments. This discussion of the model includes discussion of the following general topics: health effects from radiation exposure, urban area characterization, computation of dose resulting from normal transportation, computation of dose resulting from vehicular accidents or sabotage, and preliminary results and conclusions

  15. The use of urban plant resources for health and food security in Kampala, Uganda

    DEFF Research Database (Denmark)

    Mollee, Eefke Maria

    an understanding of the current and potential contribution of urban plant resources to human wellbeing (with a focus on food security) in Kampala, Uganda. To fulfil this aim, I created 4 objectives: 1) to assess plant species composition and use in Kampala’s homegardens, 2) to explore associations between...... homegardens and socio-economic determinants of dietary diversity and fruit consumption of children aged 2-5 years, 3) to explore the prevalence and determinants of wild plant collectors in Kampala, Uganda, and 4) to assess the extent and importance of alternative food sources of different food groups for low...... species) were collected for food purposes, while the other 25 species were collected for medicinal purposes and were also collected more frequently. The findings indicate that urban homegardens and wild space can play an important role in human wellbeing. It is important to incorporate biodiversity...

  16. Convenience stores are the key food environment influence on nutrients available from household food supplies in Texas Border Colonias

    OpenAIRE

    Sharkey, Joseph R; Dean, Wesley R; Nalty, Courtney C; Xu, Jin

    2013-01-01

    Abstract Background Few studies have focused on the relationship between the retail food environment and household food supplies. This study examines spatial access to retail food stores, food shopping habits, and nutrients available in household food supplies among 50 Mexican-origin families residing in Texas border colonias. Methods The design was cross-sectional; data were collected in the home March to June 2010 by promotora-researchers. Ground-truthed methods enumerated traditional (supe...

  17. Rural-Urban Interdependence in Food Systems in Nsukka Local ...

    African Journals Online (AJOL)

    USER

    by influencing the decision to migrate, remain in the rural area, or provide urban services in ..... (dried cassava) processing machines, vehicles, corrugated iron houses. A final .... It can also influence learning and adoption rates of new ..... 18.3. 8 . Palm tree. Small. 46.7. 73.3. Medium. 51.7. 3.3. Large. 1.7. None. 0.0. 23.3 ...

  18. The nurse work environment, job satisfaction and turnover rates in rural and urban nursing units.

    Science.gov (United States)

    Baernholdt, Marianne; Mark, Barbara A

    2009-12-01

    The aim of the present study was to determine whether there are differences in hospital characteristics, nursing unit characteristics, the nurse work environment, job satisfaction and turnover rates in rural and urban nursing units. Research in urban hospitals has found an association between the nurse work environment and job satisfaction and turnover rates, but this association has not been examined in rural hospitals. Rural and urban nursing units were compared in a national random sample of 97 United States hospitals (194 nursing units) with between 99 and 450 beds. Significant differences were found between hospital and nursing unit characteristics and the nurse work environment in rural and urban nursing units. Both nursing unit characteristics and the work environment were found to have a significant influence on nurse job satisfaction and turnover rates. Job satisfaction and turnover rates in rural and urban nursing units are associated with both nursing unit characteristics and the work environment. Both rural and urban hospitals can improve nurse job satisfaction and turnover rates by changing unit characteristics, such as creating better support services and a work environment that supports autonomous nursing practice. Rural hospitals can also improve the work environment by providing nurses with more educational opportunities.

  19. [FOOD CONSUMPTION PATTERN AT A FAMILY LEVEL OF URBAN AREAS OF ANZOÁTEGUI, VENEZUELA].

    Science.gov (United States)

    Ekmeiro Salvador, Jesús; Moreno Rojas, Rafael; García Lorenzo, María; Cámara Martos, Fernando

    2015-10-01

    In order to assess the qualitative pattern of food consumption in urban families of Anzoátegui, Venezuela, 300 domestic groups that combined a total of 1 163 people were studied. The domestic dietary pattern was addressed by the method of qualitative frequency of food consumption, which applied a structured survey that yielded the usual frequency of intake of a food or food group over a given period. The information was obtained through an interview with the person responsible for the procurement of food in every home, and included basic data for the socioeconomic and nutritional profile of the families studied. The qualitative analysis of the diet was obtained by comparing the different food groups that constitute the actual consumption pattern of the population studied, with official feeding guidelines suggested for the Venezuelan population. The present study showed that the qualitative pattern of food consumption in the urban population evaluated is characterized by slightly adjusted to the promotion of health and control of diet-related diseases. The family food proved to be far from the guidelines established by the dietary guidelines for Venezuela and consumption patterns are fairly homogeneous in the different socioeconomic strata. The foods most consumed daily were salt, coffee, dressing and precooked corn flour as well as beef, chicken and the higher weekly food consumption pastas. 90% of the food consumed daily is technologically processed. The results contribute to increase knowledge about the food situation of the Venezuelan population, and technically could direct the efforts of the authorities to reconcile the development of the productive sector and food supply, whereas a pattern qualitatively inadequate intake directly affects the individual biological functioning, and results in the collective conditioning of unfavorable health states. Copyright AULA MEDICA EDICIONES 2014. Published by AULA MEDICA. All rights reserved.

  20. Local Path Planning of Driverless Car Navigation Based on Jump Point Search Method Under Urban Environment

    Directory of Open Access Journals (Sweden)

    Kaijun Zhou

    2017-09-01

    Full Text Available The Jump Point Search (JPS algorithm is adopted for local path planning of the driverless car under urban environment, and it is a fast search method applied in path planning. Firstly, a vector Geographic Information System (GIS map, including Global Positioning System (GPS position, direction, and lane information, is built for global path planning. Secondly, the GIS map database is utilized in global path planning for the driverless car. Then, the JPS algorithm is adopted to avoid the front obstacle, and to find an optimal local path for the driverless car in the urban environment. Finally, 125 different simulation experiments in the urban environment demonstrate that JPS can search out the optimal and safety path successfully, and meanwhile, it has a lower time complexity compared with the Vector Field Histogram (VFH, the Rapidly Exploring Random Tree (RRT, A*, and the Probabilistic Roadmaps (PRM algorithms. Furthermore, JPS is validated usefully in the structured urban environment.

  1. Virtualization of the school and their impact in the urban environment

    International Nuclear Information System (INIS)

    Ramirez C, Luz Arabany

    2002-01-01

    This paper synthesizes the conceptual framework of the research virtualization of the processes and instructional technology: virtualization process of the education in Manizales and its impact on the urban environment. This research was carried out for the environment and development, urban environmental studies, program, of the Universidad Nacional de Colombia - campus Manizales. A vision of the urban environment from the systems theory is established, a review of the characteristics of the education styles is done, the virtualization process concept is explained, and the transformation of Manizales given the virtualization process of the education is described. On the other hand, the impact of the virtualization process of the education on the urban environment is examined, and the consequences of the realization based on the virtual thing

  2. Preconceptions of Students about the Natural Urban Environment in a Small Spanish City.

    Science.gov (United States)

    Membiela, Pedro; And Others

    1994-01-01

    Reports the results of a study of preconceptions of secondary students from a small Spanish city. The analysis has led the authors to propose some recommendations for curricular design and development for schools in urban environments. (LZ)

  3. Small UAS Analysis of Laser Designation and Search and Target Acquisition Capabilities in an Urban Environment

    National Research Council Canada - National Science Library

    Harclerode, Eric

    2008-01-01

    Conclusions: -Small UAS has extreme difficulty lasing moving targets in high density urban environments -Lasing moving targets in medium density terrain is possible but not certain -Lasing of stationary targets...

  4. Social connectedness is associated with food security among peri-urban Peruvian Amazonian communities.

    Science.gov (United States)

    Lee, Gwenyth O; Surkan, Pamela J; Zelner, Jon; Paredes Olórtegui, Maribel; Peñataro Yori, Pablo; Ambikapathi, Ramya; Caulfield, Laura E; Gilman, Robert H; Kosek, Margaret N

    2018-04-01

    Food insecurity is a major global public health issue. Social capital has been identified as central to maintaining food security across a wide range of low- and middle-income country contexts, but few studies have examined this relationship through sociocentric network analysis. We investigated relationships between household- and community-level social connectedness, household food security, and household income; and tested the hypothesis that social connectedness modified the relationship between income and food security. A cross-sectional census with an embedded questionnaire to capture social relationships was conducted among eleven peri-urban communities. Community connectedness was related to study outcomes of food security and per-capita income through regression models. Of 1520 households identified, 1383 were interviewed (91.0%) and 1272 (83.9%) provided complete data. Households in the youngest communities had the most total contacts, and the highest proportion of contacts outside of the community. Household income was also associated with more outside-community contacts (0.05 more contacts per standard deviation increase in income, psecure households reported more contacts nearby (0.24 increase in household food insecurity access scale (HFIAS) for each additional contact, psecurity (-0.92 decrease in HFIAS for each one-unit increase in community mean degree, p=0.008). There was no evidence that social connectedness modified the relationship between income and food security such that lower-income households benefited more from community membership than higher-income households. Although households reported networks that spanned rural villages and urban centers, contacts within the community, with whom food was regularly shared, were most important to maintaining food security. Interventions that build within-community connectedness in peri-urban settings may increase food security.

  5. The prevalence and characteristics of food allergy in urban minority children.

    Science.gov (United States)

    Taylor-Black, Sarah; Wang, Julie

    2012-12-01

    Urban minority children are known to have high rates of asthma and allergic rhinitis, but little is known about food allergy in this population. To examine the prevalence and characteristics of food allergy in an urban pediatric population. A retrospective review of electronic medical records from children seen in the hospital-based general pediatric clinic at Mount Sinai Hospital serving East Harlem, NY, between July 1, 2008 and July 1, 2010 was performed. Charts for review were selected based on diagnosis codes for food allergy, anaphylaxis, or epinephrine autoinjector prescriptions. Of 9,184 children seen in this low-income, minority clinic, 3.4% (313) had a physician-documented food allergy. The most common food allergies were peanut (1.6%), shellfish (1.1%), and tree nuts (0.8%). Significantly more black children (4.7%) were affected than children of other races (2.7%, P food-allergic children, asthma (50%), atopic dermatitis (52%), and allergic rhinitis (49%) were common. Fewer than half had confirmatory testing or evaluation by an allergy specialist, and although most had epinephrine autoinjectors prescribed, most were not prescribed food allergy action plans. This is the largest study of food allergy prevalence in an urban minority pediatric population, and 3.4% had physician-documented food allergy. Significantly more blacks were affected than children of other races. Fewer than half of food-allergic children in this population had confirmatory testing or evaluation by an allergy specialist. Copyright © 2012 American College of Allergy, Asthma & Immunology. Published by Elsevier Inc. All rights reserved.

  6. Employment status, residential and workplace food environments: associations with women's eating behaviours.

    Science.gov (United States)

    Thornton, Lukar E; Lamb, Karen E; Ball, Kylie

    2013-11-01

    There remains a lack of consistent evidence linking food environments with eating behaviours. Studies to date have largely ignored the way different individuals interact with their local food environment and have primarily focussed on exposures within the residential neighbourhood without consideration of exposures around the workplace, for example. In this study we firstly examine whether associations between the residential food environment and eating behaviours differ by employment status and, secondly, whether food environments near employed women's workplaces are more strongly associated with dietary behaviours than food environments near home. Employment status did not modify the associations between residential food environments and eating behaviours, however results showed that having access to healthy foods near the workplace was associated with healthier food consumption. Policies focused on supportive environments should consider commercial areas as well as residential neighbourhoods. © 2013 Elsevier Ltd. All rights reserved.

  7. An u-Service Model Based on a Smart Phone for Urban Computing Environments

    Science.gov (United States)

    Cho, Yongyun; Yoe, Hyun

    In urban computing environments, all of services should be based on the interaction between humans and environments around them, which frequently and ordinarily in home and office. This paper propose an u-service model based on a smart phone for urban computing environments. The suggested service model includes a context-aware and personalized service scenario development environment that can instantly describe user's u-service demand or situation information with smart devices. To do this, the architecture of the suggested service model consists of a graphical service editing environment for smart devices, an u-service platform, and an infrastructure with sensors and WSN/USN. The graphic editor expresses contexts as execution conditions of a new service through a context model based on ontology. The service platform deals with the service scenario according to contexts. With the suggested service model, an user in urban computing environments can quickly and easily make u-service or new service using smart devices.

  8. Health benefits of 'grow your own' food in urban areas: implications for contaminated land risk assessment and risk management?

    LENUS (Irish Health Repository)

    2009-12-21

    Abstract Compelling evidence of major health benefits of fruit and vegetable consumption, physical activity, and outdoor interaction with \\'greenspace\\' have emerged in the past decade - all of which combine to give major potential health benefits from \\'grow-your-own\\' (GYO) in urban areas. However, neither current risk assessment models nor risk management strategies for GYO in allotments and gardens give any consideration to these health benefits, despite their potential often to more than fully compensate the risks. Although urban environments are more contaminated by heavy metals, arsenic, polyaromatic hydrocarbons and dioxins than most rural agricultural areas, evidence is lacking for adverse health outcomes of GYO in UK urban areas. Rarely do pollutants in GYO food exceed statutory limits set for commercial food, and few people obtain the majority of their food from GYO. In the UK, soil contamination thresholds triggering closure or remediation of allotment and garden sites are based on precautionary principles, generating \\'scares\\' that may negatively impact public health disproportionately to the actual health risks of exposure to toxins through own-grown food. By contrast, the health benefits of GYO are a direct counterpoint to the escalating public health crisis of \\'obesity and sloth\\' caused by eating an excess of saturated fats, inadequate consumption of fresh fruit and vegetables combined with a lack of exercise. These are now amongst the most important preventable causes of illness and death. The health and wider societal benefits of \\'grow-your-own\\' thus reveal a major limitation in current risk assessment methodologies which, in only considering risks, are unable to predict whether GYO on particular sites will, overall, have positive, negative, or no net effects on human health. This highlights a more general need for a new generation of risk assessment tools that also predict overall consequences for health to more effectively guide

  9. Health benefits of 'grow your own' food in urban areas: implications for contaminated land risk assessment and risk management?

    Science.gov (United States)

    Leake, Jonathan R; Adam-Bradford, Andrew; Rigby, Janette E

    2009-12-21

    Compelling evidence of major health benefits of fruit and vegetable consumption, physical activity, and outdoor interaction with 'greenspace' have emerged in the past decade - all of which combine to give major potential health benefits from 'grow-your-own' (GYO) in urban areas. However, neither current risk assessment models nor risk management strategies for GYO in allotments and gardens give any consideration to these health benefits, despite their potential often to more than fully compensate the risks. Although urban environments are more contaminated by heavy metals, arsenic, polyaromatic hydrocarbons and dioxins than most rural agricultural areas, evidence is lacking for adverse health outcomes of GYO in UK urban areas. Rarely do pollutants in GYO food exceed statutory limits set for commercial food, and few people obtain the majority of their food from GYO. In the UK, soil contamination thresholds triggering closure or remediation of allotment and garden sites are based on precautionary principles, generating 'scares' that may negatively impact public health disproportionately to the actual health risks of exposure to toxins through own-grown food. By contrast, the health benefits of GYO are a direct counterpoint to the escalating public health crisis of 'obesity and sloth' caused by eating an excess of saturated fats, inadequate consumption of fresh fruit and vegetables combined with a lack of exercise. These are now amongst the most important preventable causes of illness and death. The health and wider societal benefits of 'grow-your-own' thus reveal a major limitation in current risk assessment methodologies which, in only considering risks, are unable to predict whether GYO on particular sites will, overall, have positive, negative, or no net effects on human health. This highlights a more general need for a new generation of risk assessment tools that also predict overall consequences for health to more effectively guide risk management in our

  10. Gathering "wild" food in the city: rethinking the role of foraging in urban ecosystem planning and management

    Science.gov (United States)

    Rebecca J. McLain; Patrick T. Hurley; Marla R. Emery; Melissa R. Poe

    2014-01-01

    Recent "green" planning initiatives envision food production, including urban agriculture and livestock production, as desirable elements of sustainable cities. We use an integrated urban political ecology and human-plant geographies framework to explore how foraging for "wild" foods in cities, a subversive practice that challenges prevailing views...

  11. Food trade and urbanization in Sub-Saharan Africa : from the Early Stone Age to the Structural Adjustment Era

    NARCIS (Netherlands)

    Dijkstra, T.

    1995-01-01

    This paper analyses a selection of the literature that has been published on the relationship between the development of food trade and urbanization in sub-Saharan Africa. The evolution of food marketing systems and the urbanization process are described in three phases: the precolonial period, the

  12. Integration of Multiple UAVs for Collaborative ISR Missions in an Urban Environment

    OpenAIRE

    Chua, Chee Nam

    2012-01-01

    Military conflicts are shifting from jungles and deserts to cities. This is because terrorists, insurgents, and guerillas find these areas provide a rich target environment and good hideouts. With the use of UAVs, urban threats can be tracked and targeted effectively. However, in an urban environment where there is little or no GPS signals and many obstacles, navigation of UAVs is a major challenge. Multiple UAVs can be employed to share sensor information to counter these challenges and to p...

  13. EFFECTS OF PAVEMENT SURFACE TEMPERATURE ON THE MODIFICATION OF URBAN THERMAL ENVIRONMENT

    Directory of Open Access Journals (Sweden)

    SARAT, Adebayo-Aminu

    2012-07-01

    Full Text Available Urban centres continue to experience escalating average summer temperature over the last fifty years. Temperature in the urban core cites have been rising due to rapid growth of urbanization in the latter half of the twentieth century (Akbari et al., 1989. Outdoor experiments were conducted to investigate the effects of different movement of materials on the urban thermal environment. Meteorological conditions such as air temperature, pavement surface temperature, Relative humidity and wind velocity were recorded to determine temperature differences among Asphalt/concrete, interlocking bricks and grass surfaces.

  14. Children's food store, restaurant, and home food environments and their relationship with body mass index: a pilot study.

    Science.gov (United States)

    Holsten, Joanna E; Compher, Charlene W

    2012-01-01

    This pilot research assessed the feasibility and utility of a study designed to examine the relationship between children's BMI and food store, restaurant, and home food environments. Home visits were conducted with sixth-grade children (N = 12). BMI z-scores were calculated with weight and height measurements. Nutrition Environment Measures Surveys evaluated children's food environments. The study protocol involved a feasible time duration, minimal missing data for primary variables, and participant satisfaction. Potential design problems included the homogeneous store environments and low restaurant exposure of the sample recruited from one school, and the adequacy of a single cross-sectional measure of the home environment.

  15. JUNK FOOD CONSUMPTION PATTERN AND OBESITY AMONG SCHOOL GOING CHILDREN IN AN URBAN FIELD PRACTICE AREA: A CROSS SECTIONAL STUDY

    Directory of Open Access Journals (Sweden)

    Vidya

    2015-03-01

    Full Text Available BACKGROUND: Junk food simply means an empty calorie food; it lacks in micronutrients such as vitamins, minerals, or amino acids, and fibre but has high energy (calories. During school - age years, children begin to establish habits for eating and exercise that stick w ith them for their entire lives. If children establish healthy habits, their risk for developing many chronic diseases will be greatly decreased. The family, friends, schools, and community resources in a child’s environment reinforce lifestyle habits rega rding diet and activity. OBJECTIVES: To study the fast food consumptions pattern and fast food preferences among the school going children (9 - 13yrs and some of the determinants related to fast food consumption . STUDY SETTING: Department of Community Medic ine in an Urban field practice area of Rajarajeswari Medical College & Hospital, Bangalore. STUDY DESIGN: Cross - sectional study. STUDY DURATION: Three months duration ( Oct – Dec 2014. STUDY POPULATION: school students studying in V th standard to X th standar d. SAMPLE SIZE : The selected school had a strength of 200 students. Hence complete enumeration of the students was considered for this study. DATA COLLECTION : by using pre - structured questionnaire by interview method. The variables included were socio - demographic profile, measurement of height, weight and questions related to junk food consumption and its patterns. DATA ANALYSIS: using statistics software SPSS 20. Mean and standard deviation was calculated for anthropometric measurements. Test of significance for proportions was done by Chi - square test. RESULTS: Among 200 study subjects, 107 were male (53.5% and 93 females (46.5%. Majority of the students wer e in the age group of 12 - 15 years ( 66% and 9 - 11 years ( 34%. Snacks (41%, Fast food (25.50%, soft drinks (17.50% and candies (16% were the favourite junk foods among the study subjects. Taste and time factors, watching television while consuming

  16. Household food security and HIV status in rural and urban ...

    African Journals Online (AJOL)

    2017-10-11

    Oct 11, 2017 ... More than half of all participants reported feeling sad, blue or depressed ... and economic access to sufficient safe and nutritious food that meets their dietary .... select significant independent factors associated with HIV status. Variables with a ...... the disability grant: A South African dilemma? Journal of the ...

  17. The influence of the WIC food package changes on the retail food environment in New Orleans.

    Science.gov (United States)

    Rose, Donald; O'Malley, Keelia; Dunaway, Lauren Futrell; Bodor, J Nicholas

    2014-01-01

    To examine the effect of the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) food package changes on availability of healthy foods in small stores. Pre-post comparison group design with repeat in-store observations. New Orleans. Small stores (n = 102; 77% of total) were visited in 2009. Of these, 91% were observed again in 2010, including both WIC (n = 27) and non-WIC (n = 66) stores. The 2009 WIC food package changes to include healthier foods. Change in store availability of fruits, vegetables, lower-fat milks, whole wheat bread, and brown rice. Change in number of varieties and shelf length of fruits and vegetables. Difference-in-differences analysis using logit models for change in availability and regression models for change in number of varieties or shelf length. The WIC stores were more likely to improve availability of lower-fat milks than non-WIC stores (adjusted odds ratio, 5.0, 95% confidence interval, 1.2-21.0). An even greater relative improvement was seen with whole grains. The WIC stores showed a relative increase in number of varieties of fresh fruits (0.9 ± 0.3; P New Orleans. Similar changes throughout the country could have a significant impact on neighborhood food environments. Copyright © 2014 Society for Nutrition Education and Behavior. Published by Elsevier Inc. All rights reserved.

  18. Geologic considerations for urban planning in seismic environment

    International Nuclear Information System (INIS)

    Agrawal, R.C.

    1988-12-01

    Even though it is desirable to visualize the performance of an entire metropolitan centre during earthquake occurrences as part of local hazards mitigation programme, yet these centres still remain vulnerable to major seismic activity. Geological considerations lack in urban planning and do not account for hazards mitigation. This may also be due to the involvement of several interdependent activities, like services, functions, life line elements, etc. The failure of any one of these can make the entire metropolitan area inoperative. It is recommended that multidisciplinary teams should undertake zoning studies for use in the future growth areas of Indian urban centres. (author). 5 refs, 1 fig., 2 tabs

  19. An obsolete dichotomy? Rethinking the rural–urban interface in terms of food security and production in the global south.

    Science.gov (United States)

    Lerner, Amy M; Eakin, Hallie

    2011-01-01

    The global food system is coming under increasing strain in the face of urban population growth. The recent spike in global food prices (2007–08) provoked consumer protests, and raised questions about food sovereignty and how and where food will be produced. Concurrently, for the first time in history the majority of the global population is urban, with the bulk of urban growth occurring in smaller-tiered cities and urban peripheries, or ‘peri-urban’ areas of the developing world. This paper discusses the new emerging spaces that incorporate a mosaic of urban and rural worlds, and reviews the implications of these spaces for livelihoods and food security. We propose a modified livelihoods framework to evaluate the contexts in which food production persists within broader processes of landscape and livelihood transformation in peri-urban locations. Where and how food production persists are central questions for the future of food security in an urbanising world. Our proposed framework provides directions for future research and highlights the role of policy and planning in reconciling food production with urban growth.

  20. Shyer and larger bird species show more reduced fear of humans when living in urban environments.

    Science.gov (United States)

    delBarco-Trillo, Javier

    2018-04-01

    As the natural habitats of many species are degraded or disappear, there is scope for these species to be established in urban habitats. To ease the establishment and maintenance of urban populations of more species we need to better understand what degree of phenotypical change to expect as different species transition into urban environments. During the first stages of urban colonization, behavioural changes such as an increase in boldness are particularly important. A consistent response in urban populations is to decrease the distance at which individuals flee from an approaching human (flight initiation distance, or FID). Performing a phylogenetic generalized least-squares (PGLS) analysis on 130 avian species, I found that the largest changes in FID between rural and urban populations occur in species that are larger-bodied and naturally shy (higher rural FID), two phenotypic traits that are not normally associated with urban colonizers. More unlikely species may thus be able to colonize urban environments, especially if we design cities in ways that promote such urban colonizations. © 2018 The Author(s).

  1. The local food environment and diet: a systematic review.

    Science.gov (United States)

    Caspi, Caitlin E; Sorensen, Glorian; Subramanian, S V; Kawachi, Ichiro

    2012-09-01

    Despite growing attention to the problem of obesogenic environments, there has not been a comprehensive review evaluating the food environment-diet relationship. This study aims to evaluate this relationship in the current literature, focusing specifically on the method of exposure assessment (GIS, survey, or store audit). This study also explores 5 dimensions of "food access" (availability, accessibility, affordability, accommodation, acceptability) using a conceptual definition proposed by Penchansky and Thomas (1981). Articles were retrieved through a systematic keyword search in Web of Science and supplemented by the reference lists of included studies. Thirty-eight studies were reviewed and categorized by the exposure assessment method and the conceptual dimensions of access it captured. GIS-based measures were the most common measures, but were less consistently associated with diet than other measures. Few studies examined dimensions of affordability, accommodation, and acceptability. Because GIS-based measures on their own may not capture important non-geographic dimensions of access, a set of recommendations for future researchers is outlined. Copyright © 2012 Elsevier Ltd. All rights reserved.

  2. Urban food-energy-water nexus: a case study of Beijing

    Science.gov (United States)

    Wu, Z.; Shao, L.

    2017-12-01

    The interactions between the food, energy and water sectors are of great importance to urban sustainable development. This work presents a framework to analyze food-energy-water (FEW) nexus of a city. The method of multi-scale input-output analysis is applied to calculate consumption-based energy and water use that is driven by urban final demand. It is also capable of accounting virtual energy and water flows that is embodied in trade. Some performance indicators are accordingly devised for a comprehensive understanding of the urban FEW nexus. A case study is carried out for the Beijing city. The embodied energy and water use of foods, embodied water of energy industry and embodied energy of water industry are analyzed. As a key node of economic network, Beijing exchanges a lot of materials and products with external economic systems, especially other Chinese provinces, which involves massive embodied energy and water flows. As a result, Beijing relies heavily on outsourcing energy and water to meet local people's consumption. It is revealed that besides the apparent supply-demand linkages, the underlying interconnections among food, water and energy sectors are critical to create sustainable urban areas.

  3. Product Quality and the Demand for Food: The Case of Urban China

    OpenAIRE

    Dong, Diansheng; Gould, Brian W.

    2007-01-01

    A Quadratic Almost Ideal Demand System is used to examine the structure of food demand for a sample of urban Chinese households. The dual choice of product quality and quantity is accounted for in the econometric model via the inclusion of simultaneously estimated unit-value equations.

  4. Nutrient intake of children (36 months) fed fermented foods in urban ...

    African Journals Online (AJOL)

    A 3-day weighed food intake study was conducted with 200 children aged 36 months in two urban and rural communities in Anambra and Enugu states. Means, standard error of the mean and Duncan's multiple range test were the statistical tools used to analyze the data. The daily mean energy intake, protein, thiamin, ...

  5. A consumer segmentation study with regards to genetically modified food in urban China

    NARCIS (Netherlands)

    Zhang, X.Y.; Huang, J.K.; Qiu, H.; Huang, Z.

    2010-01-01

    The objective of this study is to identify the underlying subgroups of Chinese consumers in terms of their perceptions and attitudes toward GM foods. In particular, we address the following specific questions: may researchers segment Chinese urban consumers in terms of their attitudes and

  6. Mother and Adolescent Eating in the Context of Food Insecurity: Findings from Urban Public Housing.

    Science.gov (United States)

    Bruening, Meg; Lucio, Joanna; Brennhofer, Stephanie

    2017-10-01

    Introduction Anecdotal evidence suggests that parents protect their children from food insecurity and its effects, but few studies have concurrently assessed food insecurity among youth and parents. The purpose of this study was to examine food insecurity and eating behaviors among an urban sample of mother-adolescent dyads. Methods Mother-adolescent dyads (n = 55) were from six public housing sites in Phoenix, Arizona who completed surveys during 2014. Multivariate mixed linear and logistic regression models assessed the relationship between mother and adolescent eating behaviors in the context of food insecurity. Results Food insecurity was prevalent with 65.4% of parents and 43.6% of adolescents reporting food insecurity; 34.5% of parents and 14.5% of adolescents reported very low food security. After adjusting for food insecurity status, parents' and adolescents' fruit, vegetable, and sugar-sweetened beverage consumption was not associated. However, significant associations were observed between mothers' and adolescents' fast food intake (β = 0.52; p insecurity given the lower prevalence of food insecurity observed among adolescents. Interventions addressing food insecurity among mothers and adolescents may want to capitalize on shared eating patterns and address issues related to binge eating and leverage site-based strengths of public housing.

  7. Preliminary investigation for the development of surrogate debris from nuclear detonations in marine-urban environments

    International Nuclear Information System (INIS)

    Seybert, A.G.; Auxier II, J.D.; University of Tennessee, Knoxville, TN; Hall, H.L.; University of Tennessee, Knoxville, TN; University of Tennessee, Knoxville, TN

    2017-01-01

    Since no nuclear weapon surface detonations have occurred in urban harbor environments, the nuclear forensic community has no actual debris from which to develop and validate analytical methods for radiochemistry analysis, making the development of surrogate debris representative of this a marine-urban detonation a vital undertaking. This work seeks to build a robust model that accounts for natural and manmade environmental variations in harbor environments and vessel compositions to statistically define the elemental composition of vaporized debris from a marine-urban nuclear detonation. This initial work is necessary for follow-on neutron-activation and debris formation analysis. (author)

  8. MOTIVATIONS FOR INVOLVEMENT IN URBAN CATFISH FARMING AND SUSTAINABLE FOOD SECURITY IN NIGERIA

    Directory of Open Access Journals (Sweden)

    Afolabi Monisola TUNDE

    2017-10-01

    Full Text Available Fish farming is known as one of the ways of ensuring food security and alleviating poverty through income generation. It is very common in the urban areas of Nigeria because of great demand for fish. This study determines motivations for involvement in urban catfish farming and sustainable food security in Ilorin, Kwara State, Nigeria. Specifically, the study identifies fish farmers and their socio-demographic characteristics in the study area; it examines motives of fish farming; examines the contributions of fish farming to household food security; and assesses the challenges faced by fish farmers for increased production. Both primary and secondary sources of information were employed and a total of 120 fish farmers were sampled randomly with copies of structured questionnaire. Frequency counts, percentages, tabulations and matrix ranking were employed to analyze the gathered data. The findings revealed that catfish production has actually contributed immensely to sustainable food security by making fish available, accessible and stable within the study area. The main motive for involvement in fish farming by the farmers includes food security (with a mean value of 3.80. This was followed by income supplement (x = 3.50, source of employment (x = 3.42 and increase in price of meat (x = 3.37. It can therefore be concluded that catfish farming in the study area has not only improve practitioners’ food security but has also contributed immensely to their income. The paper recommends the need to include fish farming in urban planning and that it should be encouraged in both rural and urban areas so as to have sustainable food security in the country as a whole.

  9. Diet, Environments, and Gut Microbiota. A Preliminary Investigation in Children Living in Rural and Urban Burkina Faso and Italy

    Directory of Open Access Journals (Sweden)

    Carlotta De Filippo

    2017-10-01

    Full Text Available Diet is one of the main factors that affects the composition of gut microbiota. When people move from a rural environment to urban areas, and experience improved socio-economic conditions, they are often exposed to a “globalized” Western type diet. Here, we present preliminary observations on the metagenomic scale of microbial changes in small groups of African children belonging to the same ethnicity and living in different environments, compared to children living on the urban area of Florence (Italy. We analyzed dietary habits and, by pyrosequencing of the 16S rRNA gene, gut microbiota profiles from fecal samples of children living in a rural village of Burkina Faso (n = 11, of two groups of children living in different urban settings (Nanoro town, n = 8; Ouagadougou, the capital city, n = 5 and of a group of Italian children (n = 13. We observed that when foods of animal origin, those rich in fat and simple sugars are introduced into a traditional African diet, composed of cereals, legumes and vegetables, the gut microbiota profiles changes. Microbiota of rural children retain a geographically unique bacterial reservoir (Prevotella, Treponema, and Succinivibrio, assigned to ferment fiber and polysaccharides from vegetables. Independently of geography and ethnicity, in children living in urban areas these bacterial genera were progressively outcompeted by bacteria more suited to the metabolism of animal protein, fat and sugar rich foods, similarly to Italian children, as resulted by PICRUSt (Phylogenetic Investigation of Communities by Reconstruction of Unobserved States, a predictive functional profiling of microbial communities using 16S rRNA marker gene. Consequently, we observed a progressive reduction of SCFAs measured by gas chromatography–mass spectrometry, in urban populations, especially in Italian children, respect to rural ones. Our results even if in a limited number of individuals point out that dietary habit modifications

  10. Recent trends in nitrogen flows with urbanization in the Shanghai megacity and the effects on the water environment.

    Science.gov (United States)

    Liu, Chen; Wang, Qinxue; Zou, Chunjing; Hayashi, Yoshitsugu; Yasunari, Tetsuzo

    2015-03-01

    The objectives of this study are to diagnose and prevent environmental problems that threaten urban sustainability, the impact of changes in lifestyle (diet, domestic sanitation, and motorization), and production style (agriculture, industry, and services) with the rapid urbanization on regional nitrogen (N) flows, and the water environment was quantitatively evaluated. The megacity Shanghai was chosen as a case study to investigate the temporal changes in nitrogen flow during 1980-2008 by a multidisciplinary approach (a field survey, a regional nitrogen mass balance model, input-output analysis, etc.). Although the total potential nitrogen load in Shanghai has decreased in the 2000s and water pollution problems seem to have improved, the problem has shifted and expanded to affect a wider area through the food/product chain and water/air movement. Further effective solutions that aim at material cycles are necessary and have to be implemented on a large scale.

  11. Citymobil, advanced transport for the urban environment : an update

    NARCIS (Netherlands)

    Dijke, J.P. van; Schijndel-de Nooij, M. van

    2012-01-01

    CityMobil was an integrated project in the Sixth Framework Program of the European Union. The objective of the project was to achieve more effective organization of urban transport for more rational use of motorized traffic with less congestion and pollution, safer driving, a higher quality of

  12. A multimedia streaming system for urban rail environments

    DEFF Research Database (Denmark)

    Poderys, Justas; Farooq, Jahanzeb; Soler, José

    2017-01-01

    using the Wi-Fi Direct connectivity and data exchange is coordinated by using the Peer-to-Peer Streaming Peer Protocol. This work presents the solution and evaluates it in the scope of urban rail deployment. Network emulation tests are used to analyze the factors impacting the number of concurrent users...

  13. Vulnerability Identification and Resilience Enhancements of Urban Environments

    NARCIS (Netherlands)

    Fischer, K.; Riedel, W.; Häring, I.; Nieuwenhuijs, A.H.; Crabbe, S.; Trojaborg, S.; Hynes, W.; Müllers, I.

    2012-01-01

    A steadily increasing number of the world’s population is living in urban centres. The issue of security and citizen safety in densely populated areas is of paramount importance and a growing concern. In view of the growing sensitivity to terrorism and large scale accident scenarios, natural

  14. The Impact of the Urban Environment on Plantain and Banana ...

    African Journals Online (AJOL)

    were used to determine the production and consumption level. Urbanization WaS .... the highest cultivated hectarage of 1 ha While Abak and Uyo have 0.5 ha .... CFA FRANCS, EXCHANGE RATE AS AT 1998 N1.00 = 6.25 thcit popularity ...

  15. Distinguishing stressors acting on landbird communities in an urbanizing environment

    Science.gov (United States)

    Matthew D. Schlesinger; Patricia N. Manley; Marcel Holyoak

    2008-01-01

    Urbanization has profound influences on ecological communities, but our understanding of causal mechanisms is limited by a lack of attention to its component stressors. Published research suggests that at landscape scales, habitat loss and fragmentation are the major drivers of community change, whereas at local scales, human activity and vegetation management are the...

  16. Mobile Urban Drama - Interactive Storytelling in Real World Environments

    DEFF Research Database (Denmark)

    Hansen, Frank Allan; Kortbek, Karen Johanne; Grønbæk, Kaj

    2012-01-01

    Mobile Urban Dramas. Dramas produced with the framework may span from pure art pieces to structured learning experiences, for example, biology learning framed in a thriller. Experiences from six dramas produced with the framework by a Danish theatre group are discussed. The results are general findings...

  17. Food-and-beverage environment and procurement policies for healthier work environments.

    Science.gov (United States)

    Gardner, Christopher D; Whitsel, Laurie P; Thorndike, Anne N; Marrow, Mary W; Otten, Jennifer J; Foster, Gary D; Carson, Jo Ann S; Johnson, Rachel K

    2014-06-01

    The importance of creating healthier work environments by providing healthy foods and beverages in worksite cafeterias, in on-site vending machines, and at meetings and conferences is drawing increasing attention. Large employers, federal and state governments, and hospital systems are significant purchasers and providers of food and beverages. The American Heart Association, federal government, and other organizations have created procurement standards to guide healthy purchasing by these entities. There is a need to review how procurement standards are currently implemented, to identify important minimum criteria for evaluating health and purchasing outcomes, and to recognize significant barriers and challenges to implementation, along with success stories. The purpose of this policy paper is to describe the role of food-and-beverage environment and procurement policy standards in creating healthier worksite environments; to review recently created national model standards; to identify elements across the standards that are important to consider for incorporation into policies; and to delineate issues to address as standards are implemented across the country. © 2014 International Life Sciences Institute.

  18. EXPURT - a model for evaluating exposure from radioactive material deposited in the urban environment

    International Nuclear Information System (INIS)

    Crick, M.J.; Brown, J.

    1990-06-01

    This model, EXPURT (EXPosure from Urban Radionuclide Transfer), is described in detail. The model simulates the movement of activity deposited on various surfaces in the urban environment and, by taking into account the shielding properties of buildings and the habits of the population, evaluates the external doses to members of the population living in such urban environments, as a function of time after deposition. One of the other advantages of EXPURT over simpler models is that it can be used to assess the possible dose reductions that might be achieved by various decontamination techniques; for example, it can estimate the effectiveness of decontaminating roof surfaces alone in reducing exposure to individuals living in an urban environment. Sensitivity/uncertainty studies have been performed whereby those parameters contributing most to remaining uncertainty in the model's predictions of dose and dose rates were identified. Predictions of the EXPURT model were compared with those from a simpler external dose model in use at NRPB. (author)

  19. Physics-based statistical model and simulation method of RF propagation in urban environments

    Science.gov (United States)

    Pao, Hsueh-Yuan; Dvorak, Steven L.

    2010-09-14

    A physics-based statistical model and simulation/modeling method and system of electromagnetic wave propagation (wireless communication) in urban environments. In particular, the model is a computationally efficient close-formed parametric model of RF propagation in an urban environment which is extracted from a physics-based statistical wireless channel simulation method and system. The simulation divides the complex urban environment into a network of interconnected urban canyon waveguides which can be analyzed individually; calculates spectral coefficients of modal fields in the waveguides excited by the propagation using a database of statistical impedance boundary conditions which incorporates the complexity of building walls in the propagation model; determines statistical parameters of the calculated modal fields; and determines a parametric propagation model based on the statistical parameters of the calculated modal fields from which predictions of communications capability may be made.

  20. Food-Energy Interactive Tradeoff Analysis of Sustainable Urban Plant Factory Production Systems

    OpenAIRE

    Li-Chun Huang; Yu-Hui Chen; Ya-Hui Chen; Chi-Fang Wang; Ming-Che Hu

    2018-01-01

    This research aims to analyze the food–energy interactive nexus of sustainable urban plant factory systems. Plant factory systems grow agricultural products within artificially controlled growing environment and multi-layer vertical growing systems. The system controls the supply of light, temperature, humidity, nutrition, water, and carbon dioxide for growing plants. Plant factories are able to produce consistent and high-quality agricultural products within less production space for urban a...

  1. Distance to Store, Food Prices, and Obesity in Urban Food Deserts

    Science.gov (United States)

    Ghosh-Dastidar, Bonnie; Cohen, Deborah; Hunter, Gerald; Zenk, Shannon N.; Huang, Christina; Beckman, Robin; Dubowitz, Tamara

    2014-01-01

    Background Lack of access to healthy foods may explain why residents of low-income neighborhoods and African Americans in the U.S. have high rates of obesity. The findings on where people shop and how that may influence health are mixed. However, multiple policy initiatives are underway to increase access in communities that currently lack healthy options. Few studies have simultaneously measured obesity, distance, and prices of the store used for primary food shopping. Purpose To examine the relationship among distance to store, food prices, and obesity. Methods The Pittsburgh Hill/Homewood Research on Eating, Shopping, and Health study conducted baseline interviews with 1,372 households between May and December 2011 in two low-income, majority African American neighborhoods without a supermarket. Audits of 16 stores where participants reported doing their major food shopping were conducted. Data were analyzed between February 2012 and February 2013. Results Distance to store and prices were positively associated with obesity (pfood prices were jointly modeled, only prices remained significant (pjunk foods relative to healthy foods. Conclusions Placing supermarkets in food deserts to improve access may not be as important as simultaneously offering better prices for healthy foods relative to junk foods, actively marketing healthy foods, and enabling consumers to resist the influence of junk food marketing. PMID:25217097

  2. Exploring experiences of the food environment among immigrants living in the Region of Waterloo, Ontario.

    Science.gov (United States)

    Rodriguez, Paulina I; Dean, Jennifer; Kirkpatrick, Sharon; Berbary, Lisbeth; Scott, Steffanie

    2016-06-09

    This exploratory study aimed to shed light on the role of the food environment in shaping food access among immigrants living in the Region of Waterloo, Ontario. In this qualitative case study, in-depth interviews aided by photovoice were conducted with nine immigrants, and key informant (KI) interviews were conducted with nine community stakeholders (e.g., settlement workers, planners) who held expert knowledge of the local context with respect to both the food system and experiences of immigrants in interacting with this system. In this paper, we focus specifically on insights related to the food environment, applying the Analysis Grid for Environments Linked to Obesity Framework to assess economic, physical, socio-cultural and political aspects. Economic features of the food environment, including food prices and differential costs of different types of food, emerged as factors related to food access. However, interactions with the food environment were shaped by broader economic factors, such as limited employment opportunities and low income. Most immigrants felt that they had good geographic access to food, though KIs expressed concerns about the types of outlet and food that were most accessible. Immigrants discussed social networks and cultural food practices, whereas KIs discussed political issues related to supporting food security in the Region. This exploratory case study is consistent with prior research in highlighting the economic constraints within which food access exists but suggests that there may be a need to further dissect food environments.

  3. Contribution of foods consumed away from home to energy intake in Brazilian urban areas: the 2008-9 Nationwide Dietary Survey.

    Science.gov (United States)

    Bezerra, Ilana Nogueira; de Moura Souza, Amanda; Pereira, Rosangela Alves; Sichieri, Rosely

    2013-04-14

    The objectives of the present study were to estimate the dietary contribution of away-from-home food consumption, to describe the contribution of away-from-home foods to energy intake, and to investigate the association between eating away from home and total energy intake in Brazilian urban areas. In the first Brazilian Nationwide Dietary Survey, conducted in 2008-9, food records were collected from 25 753 individuals aged 10 years or older, living in urban areas of Brazil. Foods were grouped into thirty-three food groups, and the mean energy intake provided by away-from-home food consumption was estimated. Linear regression models were used to evaluate the association between away-from-home food consumption and total energy intake. All analyses considered the sample design effect. Of the total population, 43 % consumed at least one food item away from home. The mean energy intake from foods consumed away from home was 1408 kJ (337 kcal), averaging 18 % of total energy intake. Eating away from home was associated with increased total energy intake, except for men in the highest income level. The highest percentage of away-from-home energy sources was for food with a high content of energy, such as alcoholic beverages (59 %), baked and deep-fried snacks (54 %), pizza (42 %), soft drinks (40 %), sandwiches (40 %), and sweets and desserts (30 %). The consumption of foods away from home was related to a greater energy intake. The characterisation of away-from-home food habits is necessary in order to properly design strategies to promote healthy food consumption in the away-from-home environment.

  4. Creating Food Futures. Trade, Ethics and the Environment

    NARCIS (Netherlands)

    Farnworth, C.R.; Jiggins, J.L.S.; Thomas, E.V.

    2008-01-01

    A global transformation in food supply and consumption is placing our food security at risk. What changes need to be made to the ways we trade, process and purchase our food if everyone in the world is going to have enough wholesome food to eat? Is there genuine scope for creating food futures that

  5. Direct Effects of the Home, School, and Consumer Food Environments on the Association between Food Purchasing Patterns and Dietary Intake among Rural Adolescents in Kentucky and North Carolina, 2017.

    Science.gov (United States)

    Gustafson, Alison; Jilcott Pitts, Stephanie; McDonald, Jordan; Ford, Hannah; Connelly, Paige; Gillespie, Rachel; Liu, Emily; Bush, Heather; Brancato, Candace; Babatande, Toyin; Mullins, Janet

    2017-10-21

    Background : Obesity rates are higher among rural versus urban adolescents. To examine possible mechanisms for the rural-urban adolescent obesity disparity, we examined the direct and indirect effects of food purchasing patterns, and the home, school, and consumer food environments on dietary intake among rural adolescents. Methods : A baseline survey was conducted among adolescents in eight rural high schools (four in Eastern Kentucky, and four in Eastern North Carolina). Participants answered questions about food purchasing patterns, dietary intake, home food availability, and demographics. The school and consumer food environments were assessed using validated measures from the School Meals Cost Study (United States Department of Agriculture-Mathematica) and the Nutrition Environment Measurement Survey for Stores, Restaurants, and Corner Stores. Results : Of 432 adolescents, 55% were normal weight, 24% were overweight, and 21% were obese. There was a direct association between unhealthy food purchasing patterns (shopping frequently at gas stations, fast food, and dollar stores) and consuming more added sugars, when compared to those with a healthy shopping pattern (shopping less frequently at gas stations, fast food, and dollar stores) [Odds Ratio = 2.41 (95% CI (confidence interval) 0.99, 3.82)]. Those who reported always having fruits and vegetables in the home consumed more servings of fruits and vegetables [OR = 0.31 cups (95% CI 0.22, 0.44)] compared to those who reported never having fruits and vegetables in the home. Adolescents attending a school with a low healthy food availability score consumed fewer servings of fruits and vegetables [-0.001 (95% CI -0.001, 0.0001)] compared to those attending a school with a high healthy food availability score. Conclusions : There are direct associations between food purchasing patterns, the home and school food environments, and dietary intake among rural adolescents. These cross-sectional results informed the

  6. [Energy and macronutrients intake from pre-packaged foods among urban residents].

    Science.gov (United States)

    Zhang, Jiguo; Huang, Feifei; Wang, Huijun; Zhai, Feigying; Zhang, Bing

    2015-03-01

    To analyze the energy and macronutrients intake from pre-packaged foods among urban residents in China. The adult subjects were selected from 9 cities of Beijing, Shanghai, Chongqing, Shenyang, Harbin, Jinan, Zhengzhou, Changsha, Nanning. The recording method for 7 consecutive days was used to collect pre-packaged foods consumption information. Among subjects, the median intake of energy, protein, fat and carbohydrate from pre-packaged foods were 628. 8kJ/d, 5.0 g/d, 6.7 g/d and 17.0 g/d, respectively. Among consumers, the median intake of energy, protein, fat and carbohydrate from pre-packaged foods were 745. 3 kJ/d, 6. 0 g/d, 7. 7 g/d and 20. 7 g/d, respectively. The energy and macronutrients intake from pre-packaged foods were at low level.

  7. IQ, the Urban Environment, and Their Impact on Future Schizophrenia Risk in Men.

    Science.gov (United States)

    Toulopoulou, Timothea; Picchioni, Marco; Mortensen, Preben Bo; Petersen, Liselotte

    2017-09-01

    Exposure to an urban environment during early life and low IQ are 2 well-established risk factors for schizophrenia. It is not known, however, how these factors might relate to one another. Data were pooled from the North Jutland regional draft board IQ assessments and the Danish Conscription Registry for men born between 1955 and 1993. Excluding those who were followed up for less than 1 year after the assessment yielded a final cohort of 153170 men of whom 578 later developed a schizophrenia spectrum disorder. We found significant effects of having an urban birth, and also experiencing an increase in urbanicity before the age of 10 years, on adult schizophrenia risk. The effect of urban birth was independent of IQ. However, there was a significant interaction between childhood changes in urbanization in the first 10 years and IQ level on the future adult schizophrenia risk. In short, those subjects who moved to more or less urban areas before their 10th birthday lost the protective effect of IQ. When thinking about adult schizophrenia risk, the critical time window of childhood sensitivity to changes in urbanization seems to be linked to IQ. Given the prediction that by 2050, over 80% of the developed world's population will live in an urban environment, this represents a major future public health issue. © The Author 2017. Published by Oxford University Press on behalf of the Maryland Psychiatric Research Center. All rights reserved. For permissions, please email: journals.permissions@oup.com.

  8. Computer simulation of population dynamics inside the urban environment

    Science.gov (United States)

    Andreev, A. S.; Inovenkov, I. N.; Echkina, E. Yu.; Nefedov, V. V.; Ponomarenko, L. S.; Tikhomirov, V. V.

    2017-12-01

    In this paper using a mathematical model of the so-called “space-dynamic” approach we investigate the problem of development and temporal dynamics of different urban population groups. For simplicity we consider an interaction of only two population groups inside a single urban area with axial symmetry. This problem can be described qualitatively by a system of two non-stationary nonlinear differential equations of the diffusion type with boundary conditions of the third type. The results of numerical simulations show that with a suitable choice of the diffusion coefficients and interaction functions between different population groups we can receive different scenarios of population dynamics: from complete displacement of one population group by another (originally more “aggressive”) to the “peaceful” situation of co-existence of them together.

  9. Transportation of radionuclides in urban environs: draft environmental assessment

    Energy Technology Data Exchange (ETDEWEB)

    Finley, N.C.; Aldrich, D.C.; Daniel, S.L.; Ericson, D.M.; Henning-Sachs, C.; Kaestner, P.C.; Ortiz, N.R.; Sheldon, D.D.; Taylor, J.M.

    1980-07-01

    This report assesses the environmental consequences of the transportation of radioactive materials in densely populated urban areas, including estimates of the radiological, nonradiological, and social impacts arising from this process. The chapters of the report and the appendices which follow detail the methodology and results for each of four causative event categories: incident free transport, vehicular accidents, human errors or deviations from accepted quality assurance practices, and sabotage or malevolent acts. The numerical results are expressed in terms of the expected radiological and economic impacts from each. Following these discussions, alternatives to the current transport practice are considered. Then, the detailed analysis is extended from a limited area of New York city to other urban areas. The appendices contain the data bases and specific models used to evaluate these impacts, as well as discussions of chemical toxicity and the social impacts of radioactive material transport in urban areas. The latter are evaluated for each causative event category in terms of psychological, sociological, political, legal, and organizational impacts. The report is followed by an extensive bibliography covering the many fields of study which were required in performing the analysis.

  10. Association between household food security and infant feeding practices in urban informal settlements in Nairobi, Kenya.

    Science.gov (United States)

    Macharia, T N; Ochola, S; Mutua, M K; Kimani-Murage, E W

    2018-02-01

    Studies in urban informal settlements show widespread inappropriate infant and young child feeding (IYCF) practices and high rates of food insecurity. This study assessed the association between household food security and IYCF practices in two urban informal settlements in Nairobi, Kenya. The study adopted a longitudinal design that involved a census sample of 1110 children less than 12 months of age and their mothers aged between 12 and 49 years. A questionnaire was used to collect information on: IYCF practices and household food security. Logistic regression was used to determine the association between food insecurity and IYFC practices. The findings showed high household food insecurity; only 19.5% of the households were food secure based on Household Insecurity Access Score. Infant feeding practices were inappropriate: 76% attained minimum meal frequency; 41% of the children attained a minimum dietary diversity; and 27% attained minimum acceptable diet. With the exception of the minimum meal frequency, infants living in food secure households were significantly more likely to achieve appropriate infant feeding practices than those in food insecure households: minimum meal frequency (adjusted odds ratio (AOR)=1.26, P=0.530); minimum dietary diversity (AOR=1.84, P=0.046) and minimum acceptable diet (AOR=2.35, P=0.008). The study adds to the existing body of knowledge by demonstrating an association between household food security and infant feeding practices in low-income settings. The findings imply that interventions aimed at improving infant feeding practices and ultimately nutritional status need to also focus on improving household food security.

  11. Food beliefs and practices in urban poor communities in Accra: implications for health interventions.

    Science.gov (United States)

    Boatemaa, Sandra; Badasu, Delali Margaret; de-Graft Aikins, Ama

    2018-04-02

    Poor communities in low and middle income countries are reported to experience a higher burden of chronic non-communicable diseases (NCDs) and nutrition-related NCDs. Interventions that build on lay perspectives of risk are recommended. The objective of this study was to examine lay understanding of healthy and unhealthy food practices, factors that influence food choices and the implications for developing population health interventions in three urban poor communities in Accra, Ghana. Thirty lay adults were recruited and interviewed in two poor urban communities in Accra. The interviews were audio-taped, transcribed and analysed thematically. The analysis was guided by the socio-ecological model which focuses on the intrapersonal, interpersonal, community, structural and policy levels of social organisation. Food was perceived as an edible natural resource, and healthy in its raw state. A food item retained its natural, healthy properties or became unhealthy depending on how it was prepared (e.g. frying vs boiling) and consumed (e.g. early or late in the day). These food beliefs reflected broader social food norms in the community and incorporated ideas aligned with standard expert dietary guidelines. Healthy cooking was perceived as the ability to select good ingredients, use appropriate cooking methods, and maintain food hygiene. Healthy eating was defined in three ways: 1) eating the right meals; 2) eating the right quantity; and 3) eating at the right time. Factors that influenced food choice included finances, physical and psychological state, significant others and community resources. The findings suggest that beliefs about healthy and unhealthy food practices are rooted in multi-level factors, including individual experience, family dynamics and community factors. The factors influencing food choices are also multilevel. The implications of the findings for the design and content of dietary and health interventions are discussed.

  12. Modeling exposures to organophosphates and pyrethroids for children living in an urban low-income environment

    Science.gov (United States)

    Pesticide exposure in urban low-income residential environments may be elevated as a result of persistent application due to severe pest infestation. Children living in this environment may be a sensitive subpopulation for these non-dietary exposures, due to their physiological a...

  13. Food, Environment, Engineering and Life Sciences Program (Invited)

    Science.gov (United States)

    Mohtar, R. H.; Whittaker, A.; Amar, N.; Burgess, W.

    2009-12-01

    Food, Environment, Engineering and Life Sciences Program Nadia Amar, Wiella Burgess, Rabi H. Mohtar, and Dale Whitaker Purdue University Correspondence: mohtar@purdue.edu FEELS, the Food, Environment, Engineering and Life Sciences Program is a grant of the National Science Foundation for the College of Agriculture at Purdue University. FEELS’ mission is to recruit, retain, and prepare high-achieving students with financial difficulties to pursue STEM (Science, Technology, Engineering, and Mathematics) careers. FEELS achieves its goals offering a scholarship of up to 10,000 per student each year, academic, research and industrial mentors, seminars, study tables, social and cultural activities, study abroad and community service projects. In year one, nine low-income, first generation and/or ethnic minority students joined the FEELS program. All 9 FEELS fellows were retained in Purdue’s College of Agriculture (100%) with 7 of 9 (77.7%) continuing to pursue STEM majors. FEELS fellows achieved an average GPA in their first year of 3.05, compared to the average GPA of 2.54 for low-income non- FEELS students in the College of Agriculture. A new cohort of 10 students joined the program in August 2009. FEELS fellows received total scholarships of nearly 50,000 for the 2008-2009 academic year. These scholarships were combined with a holistic program that included the following key elements: FEELS Freshman Seminars I and II, 2 study tables per week, integration activities and frequent meetings with FEELS academic mentors and directors. Formative assessments of all FEELS activities were used to enhance the first year curriculum for the second cohort. Cohort 1 will continue into their second year where the focus will be on undergraduate research. More on FEELS programs and activities: www.purdue.edu/feels.

  14. Food environments of young people: linking individual behaviour to environmental context.

    OpenAIRE

    Tyrrell, RL; Greenhalgh, F; Hodgson, S; Wills, WJ; Mathers, JC; Adamson, AJ; Lake, AA

    2016-01-01

    We aimed to identify and characterize the food environments from which young people obtain food and to explore associations between the type of food environment and food intakes.Young people (n = 86, mean age 17 years; combined data of two sequential pilot studies (collected in 2008-09) and a study conducted in 2011-12) recorded in 4-day self-complete food diaries what food they consumed and where food was sourced. Nutrient, fruit and vegetable intake was calculated according to the source of...

  15. Food Allergy Knowledge and Attitudes among School Nurses in an Urban Public School District

    Science.gov (United States)

    Twichell, Sarah; Wang, Kathleen; Robinson, Humaira; Acebal, Maria; Sharma, Hemant

    2015-01-01

    Since food allergy knowledge and perceptions may influence prevention and management of school-based reactions, we evaluated them among nurses in an urban school district. All District of Columbia public school nurses were asked to anonymously complete a food allergy knowledge and attitude questionnaire. Knowledge scores were calculated as percentage of correct responses. Attitude responses were tabulated across five-point Likert scales, ranging from strongly disagree to strongly agree. The knowledge questionnaire was completed by 87% of eligible nurses and the attitude questionnaire by 83%. The mean total knowledge score was 76 ± 13 with domain score highest for symptom recognition and lowest for treatment. Regarding attitudes, most (94%) felt food allergy is a serious health problem, for which schools should have guidelines (94%). Fewer believed that nut-free schools (82%) and allergen-free tables (44%) should be implemented. Negative perceptions of parents were identified as: parents of food-allergic children are overprotective (55%) and make unreasonable requests of schools (15%). Food allergy knowledge deficits and mixed attitudes exist among this sample of urban school nurses, particularly related to management of reactions and perceptions of parents. Food allergy education of school nurses should be targeted to improve their knowledge and attitudes. PMID:27417367

  16. Food Allergy Knowledge and Attitudes among School Nurses in an Urban Public School District.

    Science.gov (United States)

    Twichell, Sarah; Wang, Kathleen; Robinson, Humaira; Acebal, Maria; Sharma, Hemant

    2015-07-21

    Since food allergy knowledge and perceptions may influence prevention and management of school-based reactions, we evaluated them among nurses in an urban school district. All District of Columbia public school nurses were asked to anonymously complete a food allergy knowledge and attitude questionnaire. Knowledge scores were calculated as percentage of correct responses. Attitude responses were tabulated across five-point Likert scales, ranging from strongly disagree to strongly agree. The knowledge questionnaire was completed by 87% of eligible nurses and the attitude questionnaire by 83%. The mean total knowledge score was 76 ± 13 with domain score highest for symptom recognition and lowest for treatment. Regarding attitudes, most (94%) felt food allergy is a serious health problem, for which schools should have guidelines (94%). Fewer believed that nut-free schools (82%) and allergen-free tables (44%) should be implemented. Negative perceptions of parents were identified as: parents of food-allergic children are overprotective (55%) and make unreasonable requests of schools (15%). Food allergy knowledge deficits and mixed attitudes exist among this sample of urban school nurses, particularly related to management of reactions and perceptions of parents. Food allergy education of school nurses should be targeted to improve their knowledge and attitudes.

  17. Food Allergy Knowledge and Attitudes among School Nurses in an Urban Public School District

    Directory of Open Access Journals (Sweden)

    Sarah Twichell

    2015-07-01

    Full Text Available Since food allergy knowledge and perceptions may influence prevention and management of school-based reactions, we evaluated them among nurses in an urban school district. All District of Columbia public school nurses were asked to anonymously complete a food allergy knowledge and attitude questionnaire. Knowledge scores were calculated as percentage of correct responses. Attitude responses were tabulated across five-point Likert scales, ranging from strongly disagree to strongly agree. The knowledge questionnaire was completed by 87% of eligible nurses and the attitude questionnaire by 83%. The mean total knowledge score was 76 ± 13 with domain score highest for symptom recognition and lowest for treatment. Regarding attitudes, most (94% felt food allergy is a serious health problem, for which schools should have guidelines (94%. Fewer believed that nut-free schools (82% and allergen-free tables (44% should be implemented. Negative perceptions of parents were identified as: parents of food-allergic children are overprotective (55% and make unreasonable requests of schools (15%. Food allergy knowledge deficits and mixed attitudes exist among this sample of urban school nurses, particularly related to management of reactions and perceptions of parents. Food allergy education of school nurses should be targeted to improve their knowledge and attitudes.

  18. Food insecurity and socioeconomic, food and nutrition profile of schoolchildren living in urban and rural areas of Picos, Piauí

    Directory of Open Access Journals (Sweden)

    Jailane de Souza Aquino

    2014-08-01

    Full Text Available Objective: This study aimed to determine the prevalence of food insecurity among schoolchildren living in urban and rural areas of Picos, Piauí associated with the socioeconomic profile of families and their food intake and nutritional status. Methods: Study participants were families with children aged 7-10 years enrolled in municipal schools, totaling 342 families/schoolchildren. The study was conducted at school facilities through interviews with mothers - or guardians - using a questionnaire based on the Brazilian Food Insecurity Scale and socioeconomic variables and food frequency questionnaire. The nutritional status of children was assessed using the following indexes: weight/age, height/age and body mass index/age. Results: The prevalence of food insecurity was high and similar for rural and urban areas, 84.3% and 83.3%, respectively. In general, lower income and consumption of untreated water was associated with greater frequency of food insecurity (p≤0.01. In urban areas, higher percentage of food insecurity was associated to lower educational levels (p≤0.05. Dietary intake and nutritional status of schoolchildren were not associated with food insecurity condition of families. Conclusion: The percentage of families at food insecurity, as well as the food consumption and nutritional status of schoolchildren were similar between urban and rural areas, characterized as a homogeneous population in terms of socioeconomic conditions.

  19. Sustainable diets: The interaction between food industry, nutrition, health and the environment.

    Science.gov (United States)

    Alsaffar, Ayten Aylin

    2016-03-01

    Everyday great amounts of food are produced, processed, transported by the food industry and consumed by us and these activities have direct impact on our health and the environment. The current food system has started causing strain on the Earth's natural resources and that is why sustainable food production systems are needed. This review article discusses the need for sustainable diets by exploring the interactions between the food industry, nutrition, health and the environment, which are strongly interconnected. The most common environmental issues in the food industry are related to food processing loss, food wastage and packaging; energy efficiency; transportation of foods; water consumption and waste management. Among the foods produced and processed, meat and meat products have the greatest environmental impact followed by the dairy products. Our eating patterns impact the environment, but the environment can impact dietary choices as well. The foods and drinks we consume may also affect our health. A healthy and sustainable diet would minimise the consumption of energy-dense and highly processed and packaged foods, include less animal-derived foods and more plant-based foods and encourage people not to exceed the recommended daily energy intake. Sustainable diets contribute to food and nutrition security, have low environmental impacts and promote healthy life for present and future generations. There is an urgent need to develop and promote strategies for sustainable diets; and governments, United Nations agencies, civil society, research organisations and the food industry should work together in achieving this. © The Author(s) 2016.

  20. How and when urban vehicular traffic pollutes the environment

    International Nuclear Information System (INIS)

    Cera, L.; Di Mascio, P.

    1993-01-01

    This paper first compares monitored values of urban traffic air and noise pollution with Italian and European Communities pollution limits to assess the efficacy of current and proposed pollution regulations. The paper then focuses on the environmental impacts of the generation and discharge of waste waters during the construction and use of road surfaces. The related problems discussed include: soil erosion due to the increased exposure of bordering terrestrial ecosystems to damaging atmospheric pollutants; and the reception by roadside land areas of pollutants absorbed in rainfall runoff which has come into contact with road surfaces. Some suggestions are made on how to abate these particular types of traffic derived pollutants

  1. Urban transport, the environment and the network society

    DEFF Research Database (Denmark)

    Hansen, Carsten Jahn

    2005-01-01

    Based on the conclusions of a completed Ph.D. thesis and post doctoral research activities, this paper describes and analyses environmental objectives and strategies have materialised in three cases of local transport policy making and planning; in the urban areas of Lund (Sweden), Groningen (The...... succeeded over conventional and more hierarchical ways of public policymaking. As such, these cases offer illuminating examples of collaborative dialogue, expressed through networks in which argumentative approaches and increased reflexivity about the ´rules of the game´ have been central elements. Finally...

  2. Business list vs ground observation for measuring a food environment: saving time or waste of time (or worse)?

    Science.gov (United States)

    Lucan, Sean C; Maroko, Andrew R; Bumol, Joel; Torrens, Luis; Varona, Monica; Berke, Ethan M

    2013-10-01

    In food-environment research, an alternative to resource-intensive direct observation on the ground has been the use of commercial business lists. We sought to determine how well a frequently used commercial business list measures a dense urban food environment like the Bronx, NY. On 155 Bronx street segments, investigators compared two different levels for matches between the business list and direct ground observation: lenient (by business type) and strict (by business name). For each level of matching, researchers calculated sensitivities and positive predictive values (PPVs) for the business list overall and by broad business categories: General Grocers (eg, supermarkets), Specialty Food Stores (eg, produce markets), Restaurants, and Businesses Not Primarily Selling Food (eg, newsstands). Even after cleaning the business list (eg, for cases of multiple listings at a single location), and allowing for inexactness in listed street addresses and spellings of business names, the overall performance of the business list was poor. For strict matches, the business list had an overall sensitivity of 39.3% and PPV of 45.5%. Sensitivities and PPVs by broad business categories were not meaningfully different from overall values, although sensitivity for General Grocers and PPV for Specialty Food Stores were particularly low: 26.2% and 32%, respectively. For lenient matches, sensitivities and PPVs were somewhat higher but still poor: 52.4% to 60% and 60% to 75%, respectively. The business list is inadequate to measure the actual food environment in the Bronx. If results represent performance in other settings, findings from prior studies linking food environments to diet and diet-related health outcomes using such business lists are in question, and future studies of this type should avoid relying solely on such business lists. Copyright © 2013 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.

  3. Business list vs. ground observation for measuring a food environment: saving time or waste of time (or worse)?

    Science.gov (United States)

    Lucan, Sean C.; Maroko, Andrew R.; Bumol, Joel; Torrens, Luis; Varona, Monica; Berke, Ethan M.

    2013-01-01

    In food-environment research, an alternative to resource-intensive direct observation on the ground has been the use of commercial business lists. We sought to determine how well a frequently-used commercial business list measures a dense urban food environment like the Bronx. On 155 Bronx street segments, investigators compared two different levels for “matches” between the business list and direct ground observation: lenient (by business type) and strict (by business name). For each level of matching, researchers calculated sensitivities and positive predictive values (PPVs) for the business list overall and by broad business categories: General grocers (e.g., supermarkets), Specialty-food stores (e.g., produce markets), Restaurants, and Businesses not primarily selling food (e.g., newsstands). Even after cleaning the business list (e.g., for cases of multiple listings at a single location), and allowing for inexactness in listed street addresses and spellings of business names, the overall performance of the business list was poor. For strict “matches”, the business list had an overall sensitivity of 39.3% and PPV of 45.5%. Sensitivities and PPVs by broad business categories were not meaningfully different from overall values, although sensitivity for General grocers and PPV for Specialty-food stores were particularly low: 26.2% and 32.0% respectively. For lenient “matches”, sensitivities and PPVs were somewhat higher but still poor: 52.4–60.0% and 60.0–75.0% respectively. The business list is inadequate to measures the actual food environment in the Bronx. If results represent performance in other settings, findings from prior studies linking food environments to diet and diet-related health outcomes using such business lists are in question, and future studies of this type should avoid relying solely on such business lists. PMID:23871107

  4. Determining the potential productivity of food crops in controlled environments

    Science.gov (United States)

    Bugbee, Bruce

    1992-01-01

    The quest to determine the maximum potential productivity of food crops is greatly benefitted by crop growth models. Many models have been developed to analyze and predict crop growth in the field, but it is difficult to predict biological responses to stress conditions. Crop growth models for the optimal environments of a Controlled Environment Life Support System (CELSS) can be highly predictive. This paper discusses the application of a crop growth model to CELSS; the model is used to evaluate factors limiting growth. The model separately evaluates the following four physiological processes: absorption of PPF by photosynthetic tissue, carbon fixation (photosynthesis), carbon use (respiration), and carbon partitioning (harvest index). These constituent processes determine potentially achievable productivity. An analysis of each process suggests that low harvest index is the factor most limiting to yield. PPF absorption by plant canopies and respiration efficiency are also of major importance. Research concerning productivity in a CELSS should emphasize: (1) the development of gas exchange techniques to continuously monitor plant growth rates and (2) environmental techniques to reduce plant height in communities.

  5. PARCEL DELIVERY IN AN URBAN ENVIRONMENT USING UNMANNED AERIAL SYSTEMS: A VISION PAPER

    Directory of Open Access Journals (Sweden)

    B. Anbaroğlu

    2017-11-01

    Full Text Available This vision paper addresses the challenges and explores the avenue of solutions regarding the use of Unmanned Aerial Systems (UAS for transporting parcels in urban areas. We have already witnessed companies’ delivering parcels using UAS in rural areas, but the challenge of utilizing them for an urban environment is eminent. Nevertheless, the increasing research on the various aspects of UAS, including their battery life, resistance to harsh weather conditions and sensing its environment foresee their common usage in the logistics industry, especially in an urban environment. In addition, the increasing trend on 3D city modelling offer new directions regarding realistic as well as light 3D city models that are easy to modify and distribute. Utilizing UAS for transporting parcels in an urban environment would be a disruptive technological achievement as our roads will be less congested which would lead to less air pollution as well as wasted money and time. In addition, parcels could potentially be delivered much faster. This paper argues, with the support of the state-of-the-art research, that UASs will be used for transporting parcels in an urban environment in the coming decades.

  6. Parcel Delivery in AN Urban Environment Using Unmanned Aerial Systems: a Vision Paper

    Science.gov (United States)

    Anbaroğlu, B.

    2017-11-01

    This vision paper addresses the challenges and explores the avenue of solutions regarding the use of Unmanned Aerial Systems (UAS) for transporting parcels in urban areas. We have already witnessed companies' delivering parcels using UAS in rural areas, but the challenge of utilizing them for an urban environment is eminent. Nevertheless, the increasing research on the various aspects of UAS, including their battery life, resistance to harsh weather conditions and sensing its environment foresee their common usage in the logistics industry, especially in an urban environment. In addition, the increasing trend on 3D city modelling offer new directions regarding realistic as well as light 3D city models that are easy to modify and distribute. Utilizing UAS for transporting parcels in an urban environment would be a disruptive technological achievement as our roads will be less congested which would lead to less air pollution as well as wasted money and time. In addition, parcels could potentially be delivered much faster. This paper argues, with the support of the state-of-the-art research, that UASs will be used for transporting parcels in an urban environment in the coming decades.

  7. A Model for Urban Environment and Resource Planning Based on Green GDP Accounting System

    Directory of Open Access Journals (Sweden)

    Linyu Xu

    2013-01-01

    Full Text Available The urban environment and resources are currently on course that is unsustainable in the long run due to excessive human pursuit of economic goals. Thus, it is very important to develop a model to analyse the relationship between urban economic development and environmental resource protection during the process of rapid urbanisation. This paper proposed a model to identify the key factors in urban environment and resource regulation based on a green GDP accounting system, which consisted of four parts: economy, society, resource, and environment. In this model, the analytic hierarchy process (AHP method and a modified Pearl curve model were combined to allow for dynamic evaluation, with higher green GDP value as the planning target. The model was applied to the environmental and resource planning problem of Wuyishan City, and the results showed that energy use was a key factor that influenced the urban environment and resource development. Biodiversity and air quality were the most sensitive factors that influenced the value of green GDP in the city. According to the analysis, the urban environment and resource planning could be improved for promoting sustainable development in Wuyishan City.

  8. Gray Wave of the Great Transformation: A Satellite View of Urbanization, Climate Change, and Food Security

    Science.gov (United States)

    Imhoff, Marc Lee; Kamiell, Arnon Menahem

    2010-01-01

    Land cover change driven by human activity is profoundly affecting Earth's natural systems with impacts ranging from a loss of biological diversity to changes in regional and global climate. This change has been so pervasive and progressed so rapidly, compared to natural processes, scientists refer to it as "the great transformation". Urbanization or the 'gray wave' of land transformation is being increasingly recognized as an important process in global climate change. A hallmark of our success as a species, large urban conglomerates do in fact alter the land surface so profoundly that both local climate and the basic ecology of the landscape are affected in ways that have consequences to human health and economic well-being. Fortunately we have incredible new tools for planning and developing urban places that are both enjoyable and sustainable. A suite of Earth observing satellites is making it possible to study the interactions between urbanization, biological processes, and weather and climate. Using these Earth Observatories we are learning how urban heat islands form and potentially ameliorate them, how urbanization can affect rainfall, pollution, and surface water recharge at the local level and climate and food security globally.

  9. Measuring the food service environment: development and implementation of assessment tools.

    Science.gov (United States)

    Minaker, Leia M; Raine, Kim D; Cash, Sean B

    2009-01-01

    The food environment is increasingly being implicated in the obesity epidemic, though few reported measures of it exist. In order to assess the impact of the food environment on food intake, valid measures must be developed and tested. The current study describes the development of a food service environment assessment tool and its implementation in a community setting. A descriptive study with mixed qualitative and quantitative methods at a large, North American university campus was undertaken. Measures were developed on the basis of a conceptual model of nutrition environments. Measures of community nutrition environment were the number, type and hours of operation of each food service outlet on campus. Measures of consumer nutrition environment were food availability, food affordability, food promotion and nutrition information availability. Seventy-five food service outlets within the geographic boundaries were assessed. Assessment tools could be implemented in a reasonable amount of time and showed good face and content validity. The food environments were described and measures were grouped so that food service outlet types could be compared in terms of purchasing convenience, cost/value, healthy food promotion and health. Food service outlet types that scored higher in purchasing convenience and cost/value tended to score lower in healthy food promotion and health. This study adds evidence that food service outlet types that are convenient to consumers and supply high value (in terms of calories per dollar) tend to be less health-promoting. Results from this study also suggest the possibility of characterizing the food environment according to the type of food service outlet observed.

  10. Using the Urban Environment to Engage Youths in Urban Ecology Field Studies

    Science.gov (United States)

    Barnett, Michael; Lord, Charles; Strauss, Eric; Rosca, Camelia; Langford, Heather; Chavez, Dawn; Deni, Leah

    2006-01-01

    Recent science education reform proponents explicitly put forward the idea that all students, regardless of culture, gender, race, or socioeconomic status, are capable of understanding and doing science. To address this need, the authors have developed and implemented a field-based urban ecology science program to engage traditionally…

  11. The urban physical environment: temperature and urban heat islands. Chapter 2

    Science.gov (United States)

    Gordon M. Heisler; Anthony J. Brazel

    2010-01-01

    The term urban heat island (UHI) describes the phenomenon in which cities are generally warmer than adjacent rural areas. The UHI effect is strongest with skies free of clouds and with low wind speeds. In moist temperate climates, the UHI effect causes cities to be slightly warmer in midday than rural areas, whereas in dry climates, irrigation of vegetation in cites...

  12. An analytically based numerical method for computing view factors in real urban environments

    Science.gov (United States)

    Lee, Doo-Il; Woo, Ju-Wan; Lee, Sang-Hyun

    2018-01-01

    A view factor is an important morphological parameter used in parameterizing in-canyon radiative energy exchange process as well as in characterizing local climate over urban environments. For realistic representation of the in-canyon radiative processes, a complete set of view factors at the horizontal and vertical surfaces of urban facets is required. Various analytical and numerical methods have been suggested to determine the view factors for urban environments, but most of the methods provide only sky-view factor at the ground level of a specific location or assume simplified morphology of complex urban environments. In this study, a numerical method that can determine the sky-view factors ( ψ ga and ψ wa ) and wall-view factors ( ψ gw and ψ ww ) at the horizontal and vertical surfaces is presented for application to real urban morphology, which are derived from an analytical formulation of the view factor between two blackbody surfaces of arbitrary geometry. The established numerical method is validated against the analytical sky-view factor estimation for ideal street canyon geometries, showing a consolidate confidence in accuracy with errors of less than 0.2 %. Using a three-dimensional building database, the numerical method is also demonstrated to be applicable in determining the sky-view factors at the horizontal (roofs and roads) and vertical (walls) surfaces in real urban environments. The results suggest that the analytically based numerical method can be used for the radiative process parameterization of urban numerical models as well as for the characterization of local urban climate.

  13. Comprehensive Evaluation of Urban Sprawl on Ecological Environment Using Multi-Source Data: a Case Study of Beijing

    Science.gov (United States)

    Wang, Hao; Ning, Xiaogang; Zhu, Weiwei; Li, Fei

    2016-06-01

    With urban population growing and urban sprawling, urban ecological environment problems appear. Study on spatiotemporal characteristics of urban sprawl and its impact on ecological environment is useful for ecological civilization construction. Although a lot of work has been conducted on urban sprawl and its impact on ecological environment, resolution of images to extract urban boundary was relatively coarse and most studies only focused on certain indicators of ecological environment, rather than comprehensive evaluation of urban ecological environmental impact. In this study, high-resolution remote sensing images of Beijing from aerial photography in 2002 and 2013 respectively are employed to extract urban boundary with manual interpretation. Fractional Vegetation Coverage (FVC), Water Density (WD), Impervious Surfaces Coverage (ISC), Net Primary Production (NPP), and Land Surfa