Open Access. Powered by Scholars. Published by Universities.®

Public Health Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 30 of 61

Full-Text Articles in Public Health

Segmenting Human Trajectory Data By Movement States While Addressing Signal Loss And Signal Noise, Sungsoon Hwang, Cynthia Vandemark, Navdeep Dhatt, Sai Yalla, Ryan Crews Dec 2017

Segmenting Human Trajectory Data By Movement States While Addressing Signal Loss And Signal Noise, Sungsoon Hwang, Cynthia Vandemark, Navdeep Dhatt, Sai Yalla, Ryan Crews

Sungsoon Hwang

This paper considers the problem of partitioning an individual GPS
trajectory data into homogeneous, meaningful segments such as
stops and trips. Signal loss and signal noise are highly prevalent in
human trajectory data, and it is challenging to deal with uncertainties
in segmentation algorithms. We propose a new trajectory
segmentation algorithm that detects stop segments in a noiserobust
manner from GPS data with time gaps. The algorithm consists
of three steps that impute time gaps, split data into base
segments and estimate states over a base segment. The statedependent
path interpolation was proposed as a framework for
gap imputation to …


Food Justice Youth Development: Using Photovoice To Study Urban School Food Systems, Krista Harper, Catherine Sands, Diego Angarita, Molly Totman, Monica Maitin, Jonell Sostre Rosado, Jazmin Colon, Nick Alger Sep 2017

Food Justice Youth Development: Using Photovoice To Study Urban School Food Systems, Krista Harper, Catherine Sands, Diego Angarita, Molly Totman, Monica Maitin, Jonell Sostre Rosado, Jazmin Colon, Nick Alger

Catherine Sands

How do youth learn through participation in efforts to study and change the school food system? Through our participatory youth action research (YPAR) project, we move beyond the "youth as consumer" frame to a food justice youth development approach. We track how a group of youth learned about food and the public policy process through their efforts to transform their own school food systems by conducting a participatory evaluation of farm-to-school efforts in collaboration with university and community partners. We used the Photovoice research method, placing cameras in the hands of young people so that they themselves could document and …


Carter_Geografia_Medica_Pys_2016_Con_Citas.Pdf, Eric D. Carter Dec 2015

Carter_Geografia_Medica_Pys_2016_Con_Citas.Pdf, Eric D. Carter

Eric D. Carter

El objetivo de esta nota consiste en reseñar la evolución del campo de la
geografía médica, sobre todo en el ámbito de la producción científica del
mundo angloparlante. Se identifican vertientes principales que sirven para
orientar la evolución de la geografía médica, y se detalla la diversificación
reciente de los temas, bases teóricas y orientaciones metodológicas de este
campo. Además, se propone que la geografía médica es beneficiaria de ciertos
cambios ajenos del ámbito de la geografía académica, sobre todo tendencias
favorables en la formación de profesionales del sector salud y en las políticas
de salud pública a nivel internacional. …


Making The Blue Zones: Neoliberalism And Nudges In Public Health Promotion, Eric Carter Apr 2015

Making The Blue Zones: Neoliberalism And Nudges In Public Health Promotion, Eric Carter

Eric D. Carter

This paper evaluates the ideological and political origins of a place-based and commercial health promotion effort, the Blue Zones Project (BZP), launched in Iowa in 2011. Through critical discourse analysis, I argue that the BZP does reflect a neoliberalization of public health, but as an "actually existing neoliberalism" it emerges from a specific policy context, including dramatic health sector policy changes due to the national Affordable Care Act, also known as Obamacare; a media discourse of health crisis for an aging Midwestern population; and an effort to refashion Iowa cities as sites of healthy and active living, to retain and …


Creating Healthy Community In The Postindustrial City, Brian A. Hoey Dec 2014

Creating Healthy Community In The Postindustrial City, Brian A. Hoey

Brian A. Hoey, Ph.D.

This chapter explores how community might be reimagined for the benefit of public health as well as to promote incipient social or economic agendas born of progressive citizen action aimed at what is commonly characterized as development or, perhaps, even more broadly as “growth.” Can a city like Huntington, West Virginia, emerge as a positive example of what we might term postindustrial urban regeneration and perhaps even community healing? Can this happen specifically through a grassroots movement now finding local governmental support in a collective attempt to transform this place from one defined primarily by the productive capacity of factories …


Capitalizing On Distinctiveness: Creating Wv For A New Economy, Brian A. Hoey Dec 2014

Capitalizing On Distinctiveness: Creating Wv For A New Economy, Brian A. Hoey

Brian A. Hoey, Ph.D.

This article explores use of images and ideas of place to promote particular social and economic agendas within the regional context of Appalachia. Despite prevailing imageries of backwardness and isolation that adhere to the region, as well as recent history of often-bleak economic conditions, communities such as Huntington, West Virginia, are ideal places to observe inventive forms of community-building, place-making, and place-marketing that borrow from emerging cultural and economic models and stand in sharp contrast to a once dominant paradigm that encouraged capital investment by relying simply on tax breaks and the provision of cheap land and labor to attract …


Application Of Remotely-Sensed Data For Modeling Malaria Infection In Lokoja, Nigeria, Fanan Ujoh Ph.D, Olarewaju Oluseyi Ifatimehin Ph.D Jun 2014

Application Of Remotely-Sensed Data For Modeling Malaria Infection In Lokoja, Nigeria, Fanan Ujoh Ph.D, Olarewaju Oluseyi Ifatimehin Ph.D

Dr. Fanan Ujoh

Aims: To estimate incidences of malaria infection in an urban setting using Remotely sensed data and matching same with hospital records to validate the use of Remote sensing data as a methodology for studying the prevalence of malaria.

Study Design: Analyses of 2006 Nigeriasat-1 and Land sat ETM+satellite data for modeling malaria infection.

Place and Duration of Study: Lokoja, Capital city of Kogi State in Central Nigeria, between March 2012 and January 2013.

Methodology: Extraction of land use types, NDVI and LST maps using ILWIS 3.3 and Idrisi software. Cross tabulation of extracted maps to carry out correlational analyses while …


Community-Level Characteristics Associated With Variations In Rates Of Homelessness Among Families And Single Adults, Jamison D. Fargo, Ellen A. Munley, Thomas H. Byrne, Ann Elizabeth Montgomery, Dennis P. Culhane Nov 2013

Community-Level Characteristics Associated With Variations In Rates Of Homelessness Among Families And Single Adults, Jamison D. Fargo, Ellen A. Munley, Thomas H. Byrne, Ann Elizabeth Montgomery, Dennis P. Culhane

Dennis P. Culhane

Objectives. We modeled rates of family and single-adult homelessness in the United States in metropolitan and nonmetropolitan regions and as a function of community-level demographic, behavioral, health, economic, and safety net characteristics.
Methods. We entered community-level characteristics and US Department of Housing and Urban Development point-in-time counts for a single night in January 2009 into separate mixed-effects statistical analyses that modeled homelessness rates for 4 subpopulations: families and single adults inmetropolitan and nonmetropolitan regions.
Results. Community-level factors accounted for 25% to 50% of the variance in homelessness rates across models. In metropolitan regions, alcohol consumption, social support, and several economic …


The Influence Of The Physical Environment And Sociodemographic Characteristics On Children's Mode Of Travel To And From School, Kristian Larsen, Jason Gilliland, Peter Hess, Patricia Tucker, Jennifer Irwin, Meizi He May 2013

The Influence Of The Physical Environment And Sociodemographic Characteristics On Children's Mode Of Travel To And From School, Kristian Larsen, Jason Gilliland, Peter Hess, Patricia Tucker, Jennifer Irwin, Meizi He

Trish Tucker

Objectives: We examined whether certain characteristics of the social and physical environment influence a child's mode of travel between home and school. Methods: Students aged 11 to 13 years from 21 schools throughout London, Ontario, answered questions from a travel behavior survey. A geographic information system linked survey responses for 614 students who lived within 1 mile of school to data on social and physical characteristics of environments around the home and school. Logistic regression analysis was used to test the influence of environmental factors on mode of travel (motorized vs "active") to and from school. Results: Over 62% of …


Adolescents' Perspectives Of Home, School And Neighborhood Environmental Influences On Physical Activity And Dietary Behaviors, Patricia Tucker, Jennifer Irwin, Jason Gilliland, Meizi He May 2013

Adolescents' Perspectives Of Home, School And Neighborhood Environmental Influences On Physical Activity And Dietary Behaviors, Patricia Tucker, Jennifer Irwin, Jason Gilliland, Meizi He

Trish Tucker

This investigation sought to gain an understanding of how youth perceive neighborhood environmental influences on their physical activity and eating behaviors. This qualitative study targeted a heterogeneous sample of 12- to 14- year-olds in London, Ontario, Canada. Using a semi-structured interview guide, we conducted nine focus groups (n = 60) and used inductive content analysis to investigate their discussions. Most participants discussed their school, parks, and opportunity structures around their homes as influencing their physical activity, and overwhelmingly reported the availability of fast-food restaurants, convenience stores, and slow-food restaurants in their neighborhoods as influencing their eating practices. The descriptive information …


The Effect Of Season And Weather On Physical Activity: A Systematic Review, Patricia Tucker, Jason Gilliland May 2013

The Effect Of Season And Weather On Physical Activity: A Systematic Review, Patricia Tucker, Jason Gilliland

Trish Tucker

Objectives: This study reviewed previous studies to explore the effect of season, and consequently weather, on levels of physical activity. Study design and methods: Thirty-seven primary studies (published 1980–2006) representing a total of 291 883 participants (140 482 male and 152 085 female) from eight different countries are described, and the effect of season on moderate levels of physical activity is considered. Results: Upon review of the evidence, it appears that levels of physical activity vary with seasonality, and the ensuing effect of poor or extreme weather has been identified as a barrier to participation in physical activity among various …


Environmental Influences On Physical Activity Levels In Youth, Patricia Tucker, Jennifer Irwin, Jason Gilliland, Meizi He, Kristian Larsen, Paul Hess May 2013

Environmental Influences On Physical Activity Levels In Youth, Patricia Tucker, Jennifer Irwin, Jason Gilliland, Meizi He, Kristian Larsen, Paul Hess

Trish Tucker

This study assessed the amount of physical activity engaged in by youth aged 11–13, in relation to: (1) the presence of neighborhood recreational opportunities, objectively measured within a geographic information system; and (2) parents’ perceptions of recreation opportunities in their neighborhoods. Students in grade 7 and 8 (n=811) in 21 elementary schools throughout London, Ontario completed the adapted Previous Day Physical Activity Recall and a questionnaire assessing environmental influences in the home and school neighborhoods. Parents/guardians of participants also completed a questionnaire eliciting demographic information and perceptions of the neighborhood environment. On average, students engaged in 159.9 min/day of physical …


Why Are There Delays In Seeking Treatment For Childhood Diarrhoea In India?, Nisha Malhotra May 2013

Why Are There Delays In Seeking Treatment For Childhood Diarrhoea In India?, Nisha Malhotra

Nisha Malhotra

Abstract Aim To examine the barriers and facilitating factors for seeking treatment for childhood diarrhoea and to determine the main causes for delay in seeking treatment.

Methods Data from Indian Demographic and Health survey 2005–06 (NFHS-III) was used. Mothers were asked if their children (<5-years) had suffered from diarrhoea during the two weeks preceding the survey. Data were collected on the time of seeking treatment after start of the illness, and days waited to seek treatment after the diarrhoea started. Multivariate logistic regression analysis was performed to find the determinants of seeking treatment at the health facility and the factors responsible for the “delay” in seeking advice/treatment.

Results Out of a sample of 41,287 children, 3890 (9.4%) reportedly had diarrhoea. Sixty percent of children with diarrhoea were taken to a health facility. Mother's education till higher secondary and above (OR 1.65; 95% CI, 1.08 – 2.54), richest (OR 1.76; 95% CI, 1.24 – 2.48) wealth index, mother's lack of knowledge of oral …


Research Budget Overhaul, Chiehwen Ed Hsu Dec 2012

Research Budget Overhaul, Chiehwen Ed Hsu

Chiehwen Ed Hsu

No abstract provided.


Gifts From The Elders: Honouring The Past For A Healthier Tomorrow, Chantelle Richmond, James Fortier Dec 2012

Gifts From The Elders: Honouring The Past For A Healthier Tomorrow, Chantelle Richmond, James Fortier

Chantelle Richmond

“Gifts from the Elders” follows five Anishinaabe youth on a summer research project with their Elders, whose stories guide them on a journey back to proceeding generations that lived a healthy lifestyle off of the land. Their stories chronicle the devastating impact that environmental and cultural dispossession had on the flow of knowledge from Elders to youth, and ultimately on the health of their people. As their summer comes to an end, the youth emerge with “gifts” of knowledge and teachings from their Elders, inspiring a renewed determination to forge a hopeful and healthy future for the next generation.


An Assessment Of The Effects Of Desertification In Yobe State, Nigeria, Jibril Musa Phd Dec 2012

An Assessment Of The Effects Of Desertification In Yobe State, Nigeria, Jibril Musa Phd

Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria

Desertification is one of the most serious environmental and socio-economic problems of our time. Desertification describes circumstances of land degradation in arid, semi-arid and dry sub-humid regions resulting from the climatic variation and human activities. The fundamental goal of this thesis was to assess the effects of desertification in Yobe State, Nigeria. The present threat of desertification in the sahel has reached an alarming stage where crops cultivation and animal rearing/grazing are no more productive, soil has lost its nutrient/fertility, various infrastructure had given way because of windstorm from the neighbouring Niger Republic and sand dunes had taken over. The …


Using Remote Sensing Data To Improve Rice Production In Kutigi, Niger State, Nigeria, Jibril Musa Phd, M B. Yunusa Dec 2012

Using Remote Sensing Data To Improve Rice Production In Kutigi, Niger State, Nigeria, Jibril Musa Phd, M B. Yunusa

Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria

This research work looked in the used of Remote Sensing to improve Agricultural production in Kutigi, Niger State. The aim of the study is to use remote sensing to improve rice farming activities in Kutigi, Niger State. It is very important to identify such methods to improve Agricultural production because experts are always interested in new researches and findings to better the standard of living in any environment. In view of this, Remotely-sensed data could be used or employed to elevate most of these agricultural problems in Kutigi through the following objectives: Using Landsat imagery to assess the present landuse …


A Human Centered Geovisualization Framework To Facilitate Visual Exploration Of Telehealth Data: A Case Study, Ashish Joshi, Chiehwen Ed Hsu Nov 2012

A Human Centered Geovisualization Framework To Facilitate Visual Exploration Of Telehealth Data: A Case Study, Ashish Joshi, Chiehwen Ed Hsu

Chiehwen Ed Hsu

Background: Public health data is typically organized by geospatial units. Routine geographic monitoring of health data enables an understanding of the spatial patterns of events in terms of causes and controls. GeoVisualization (GeoVis) allows users to see information hidden both visually and explicitly on a map. Despite the applicability of GeoVis in public health, it is still underused for visualizing public health data. Objective: The objective of this study is to conduct user analysis by examining the various kinds of users that are involved with the telehealth program, their expertise and skills and their perception towards the utilization of GeoVis …


Vulnerability Of Mountain Rivers To Waste Dumping From Neamț County, Florin C. Mihai, Liviu Apostol, Adrian Ursu, Pavel Ichim Nov 2012

Vulnerability Of Mountain Rivers To Waste Dumping From Neamț County, Florin C. Mihai, Liviu Apostol, Adrian Ursu, Pavel Ichim

Florin C MIHAI

Lack of waste management facilities from mountain region often lead to uncontrolled disposal of waste on river banks polluting the local environment and damaging the tourism potential. Geographical conditions influences the distribution of human settlements which are located along the rivers and its tributaries. This paper aims to estimate the amounts of household waste generated and uncollected disposed into mountain rivers, taking into account several factors such as:proximity of rivers to the human settlements, the morphology of villages, length of river that crosses the locality(built up areas), local population, the access to waste collection services and waste management infrastructure. Vulnerability …


Variations In Climatic Parameters And Food Crop Yields: Implications On Food Security In Benue State, Nigeria., Emmanuel Adamgbe, Fanan Ujoh Oct 2012

Variations In Climatic Parameters And Food Crop Yields: Implications On Food Security In Benue State, Nigeria., Emmanuel Adamgbe, Fanan Ujoh

Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria

Agricultural production in Nigeria like in other developing countries is highly vulnerable to variations in climatic parameters which may have inverse or direct effect on the performance of food crops. This paper examines the patterns and trends of the variations in the climatic parameters and the implications of such variations on efficient yield rates of some food crops in Benue State using data on climatic variables (rainfall, temperature, sunshine) and the yield of some crops per hectare for 25 years (1986-2010). Data on the climatic variables were collected from the Nigerian Meteorological Agency, AirForce Base, Makurdi while the data on …


Factors Associated With The Process Of Adaptation Among Pakistani Adolescent Females Living In United States., Salma Khuwaja, Chiehwen Ed Hsu Aug 2012

Factors Associated With The Process Of Adaptation Among Pakistani Adolescent Females Living In United States., Salma Khuwaja, Chiehwen Ed Hsu

Chiehwen Ed Hsu

This study explored post-migration experiences of recently migrated Pakistani Muslim adolescent females residing in the United States. In-depth, semi-structured interviews were conducted with thirty Pakistani Muslim adolescent females between the ages of 15 and 18 years living with their families in Houston, Texas. Data obtained from the interviews were evaluated using discourse analysis to identify major reoccurring themes. Participants discussed factors associated with the process of adaptation to the American culture. The results revealed that the main factors associated with adaptation process included positive motivation for migration, family bonding, social support networks, inter-familial communication, aspiration of adolescents to learn other …


Many Schools Unprepared For Next Pandemic, Chiehwen Ed Hsu Aug 2012

Many Schools Unprepared For Next Pandemic, Chiehwen Ed Hsu

Chiehwen Ed Hsu

Worked with the media to evaluate a school-based pandemic preparedness study. Take home message: Not much, really. However, the CDC should carefully review its promotion of yet-to-be-proven effective syndromic surveillance systems - and the mega $ associated with the investment - until they are proven otherwise effective.


Designing Human Centered Geovisualization Application - The Sanaviz - For Telehealth Users: A Case Study., Ashish Joshi, Chiehwen Ed Hsu Jul 2012

Designing Human Centered Geovisualization Application - The Sanaviz - For Telehealth Users: A Case Study., Ashish Joshi, Chiehwen Ed Hsu

Chiehwen Ed Hsu

No abstract provided.


Dynamics Of Land Use/Land Cover Changes And Its Implication On Food Security In Anyigba, North Central, Nigeria, Tokula E. Arome, Sunday P. Ejaro (Phd) May 2012

Dynamics Of Land Use/Land Cover Changes And Its Implication On Food Security In Anyigba, North Central, Nigeria, Tokula E. Arome, Sunday P. Ejaro (Phd)

Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria

This study assessed land use/land cover changes and its effect on Agricultural land in Anyigba. The objectives were to identify and delineate different land use / land cover categories, assess the rate of change that occurred and examine the impact of land use/land cover change on food security using satellite remote sensing data collected at three different years (1987 Land sat TM, 2001 Land Sat TM and 2011 Land Sat ETM). The study utilized GIS software such as Idrisi Andes academic and ArcGIS 9.3. The study area covers approximately 31.8km2, and four major land use/cover classes were utilized (built up, …


Do Ehr Investments Lead To Lower Staffing Levels?, Jeff Helton, Chiehwen Ed Hsu Jan 2012

Do Ehr Investments Lead To Lower Staffing Levels?, Jeff Helton, Chiehwen Ed Hsu

Chiehwen Ed Hsu

No abstract provided.


Facing The Fear Factor In Taiwan Election, Chiehwen Ed Hsu Jan 2012

Facing The Fear Factor In Taiwan Election, Chiehwen Ed Hsu

Chiehwen Ed Hsu

After observing recent legislative and presidential elections in Taiwan, members of the independent International Election Observation Mission have concluded that the elections were largely “free, yet partially unfair” (“Elections ‘free, partly unfair,’ watchdog says,” Jan. 16, page 1), citing several structural problems (eg, vote-buying, misuse of government power, and substantial disparities in party wealth) and extraneous fear factors (ie, undue influence exerted by the US and China under the myth of arguably fictional stability) that posed concerns for and pressures on Taiwan’s democracy, particularly on the freedom and fairness of the choices that Taiwanese voters must take. A case in …


Socio-Economic Effects Of Demolishing Squatter Settlements And Illegal Structures In Abuja Metropolis, Federal Capital Territory, Nigeria, Ishaku Iy Mallo Phd, Victor G. Obasanya Jan 2012

Socio-Economic Effects Of Demolishing Squatter Settlements And Illegal Structures In Abuja Metropolis, Federal Capital Territory, Nigeria, Ishaku Iy Mallo Phd, Victor G. Obasanya

Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria

Abuja the Federal Capital Territory and study area is located between latitudes 8o25’ and 9o25’ North of the Equator and longitudes 6o45’ and 7o45’ East of the Greenwich Meridian. The study was carried out in Abuja Phase 1, and it is aimed at highlighting various socioeconomic effects of demolition of illegal structures and informal or squatter settlements on the people within the study area. Data was collected through reconnaissance survey, personal interviews with respondents, and a well laid out questionnaire. The results indicate that the demolition exercise embarked upon by the authorities in the Federal Capital Territory was a response …


Rainfall Variability And Crop Zones Classification For The Federal Capital Territory, Nigeria, Shaibu M. Hassan Phd Jan 2012

Rainfall Variability And Crop Zones Classification For The Federal Capital Territory, Nigeria, Shaibu M. Hassan Phd

Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria

This study aims at analyzing agro-climatological parameters and establishing a link between some selected agro-climatological indices and sustainability of agricultural production in the Federal Capital Territory (FCT). Two sets of data, climatic and crop yield data were collected and subjected to various agro-climatological analyses. Agro-climatological analyses include the derivation of Onset, Cessation and Length of Rainy Season (LRS), Seasonality Index, Drought Index and Precipitation Periodicity Index. The statistical analyses include monthly and annual means, deviation from the mean, trend line. The result of moisture index in line with crops optimum moisture requirement was used to classify the Territory into agro-climatic …


Spatial Analysis Of Preterm Birth Demonstrates Opportunities For Targeted Intervention, A. South, D. Jones, E. Hall, S. Hyo, J. Meinzen-Derr, L. Liu, James Greenberg Dec 2011

Spatial Analysis Of Preterm Birth Demonstrates Opportunities For Targeted Intervention, A. South, D. Jones, E. Hall, S. Hyo, J. Meinzen-Derr, L. Liu, James Greenberg

David E. Jones

To develop a specific, targeted intervention strategy for reducing preterm birth through use of geo- graphic analysis. We utilized Hamilton County, Ohio vital records and Census data from 2003 to 2006. Spatial scan- ning statistics allowed determination of the prevalence of preterm birth for any geographical point. Attributable risk calculations demonstrated heterogeneity of risk factors within areas of high or low preterm birth prevalence. Three geographically separate areas with high preterm birth proportions ([16%) had differing primary risk factors for preterm birth, including short interpregnancy interval, previous preterm birth, and low prepregnancy weight, despite similarities in demographics and …


Assessment Of Organic And Inorganic Phosphorus In Soils Derived From Cretaceous Sediments And Basement Complex Soils Of Guinea Savannah Of Kogi State, North Central Nigeria, Sunday I. Amhakhian, H H. Isitekhale, Charles I. Oyewole Aug 2011

Assessment Of Organic And Inorganic Phosphorus In Soils Derived From Cretaceous Sediments And Basement Complex Soils Of Guinea Savannah Of Kogi State, North Central Nigeria, Sunday I. Amhakhian, H H. Isitekhale, Charles I. Oyewole

Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria

A pot experiment was carried out using 20 surface soils (0-15cm depth) in 2008 to assess soil organic phosphorus and some fraction of inorganic phosphorus in other to know their availability in the soils of the studied area and also work have not been done in this areas in respect to organic and in-organic phosphorus. The experiment was conducted using 20 soils 10 from each geological formation (Cretaceous sediments and Basement complex soils), respectively. The mean organic phosphorus of 63.51 mgkg 1 soil was obtained for Cretaceous sediment soils and 158.54 mgkg 1 soil for the basement complex soils respectively. …