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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 …


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.


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 …


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.


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 …


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 …


Assessing The Needs And Guiding The Future: Findings From The Health Needs Assessment In 13 Asian American Communities Of Maryland In The United States, Sunmin Lee, Chiehwen Ed Hsu Mar 2011

Assessing The Needs And Guiding The Future: Findings From The Health Needs Assessment In 13 Asian American Communities Of Maryland In The United States, Sunmin Lee, Chiehwen Ed Hsu

Chiehwen Ed Hsu

There is lack of in depth data on health needs of diverse Asian American communities. We conducted 19 focus groups in 13 Asian American communities in Maryland in 2007. We developed a moderator’s guide to collect qualitative data on health needs from 174 participants, and used MAX QDA to analyze data and code emergent themes. Cardiovascular disease related conditions, diabetes, and mental health were the top three health concerns. Weight concerns, cancer, arthritis, smoking, osteoporosis, and hepatitis B followed next. Many participants were not receiving preventive health service such as cancer screening due to a lack of access to health …


Spatial Distribution Of Commercial Banks In Ilorin Metropolis, Kwara State, Nigeria, I B. Abdullahi, M A. Ijaiya, A Abdulraheem, R I. Abdulkadir, R O. Ibrahim Jan 2011

Spatial Distribution Of Commercial Banks In Ilorin Metropolis, Kwara State, Nigeria, I B. Abdullahi, M A. Ijaiya, A Abdulraheem, R I. Abdulkadir, R O. Ibrahim

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

The spatial distribution of banks in any geographic entity determines the level of accessibility to its services by the public. This study examined the pattern of banks distribution in Ilorin metropolis. Field survey was employed in determining the number of available commercial banks and their respective distances between each other. The spatial analysis technique such as the nearest neighbour analysis as used ascertain the degree of clustering, density and the average distance taken to access these services. The study revealed that about 96% of the total number of banks are situated in the Central Business District which exhibited a very …


Risk Communication And College Students: The 2009 H1n1 Pandemic Influenza, Francisco Soto Mas, Chiehwen Ed Hsu Dec 2010

Risk Communication And College Students: The 2009 H1n1 Pandemic Influenza, Francisco Soto Mas, Chiehwen Ed Hsu

Chiehwen Ed Hsu

No abstract provided.


Popular People Help Experts Predict Flu Outbreak?, Chiehwen Ed Hsu Aug 2010

Popular People Help Experts Predict Flu Outbreak?, Chiehwen Ed Hsu

Chiehwen Ed Hsu

Popular people are the trendsetters of society, especially when it comes to the next flu outbreak, according to preliminary research from Harvard University. The hypochondriac effect may have also exaggerated how predictive the friend group was, says Ed Hsu, associate professor of Public Health Informatics at the University of Texas. Those in the friend group are more likely to know someone who has the flu and hence may be more likely to think (and report) that they are coming down with it themselves.


Gay And Lesbian Elders: History, Law, And Identity Politics In The United States, Nancy J. Knauer Dec 2009

Gay And Lesbian Elders: History, Law, And Identity Politics In The United States, Nancy J. Knauer

Nancy J. Knauer

The approximately two million gay and lesbian elders in the United States are an underserved and understudied population. At a time when gay men and lesbians enjoy an unprecedented degree of social acceptance and legal protection, many elders face the daily challenges of aging isolated from family, detached from the larger gay and lesbian community, and ignored by mainstream aging initiatives. Drawing on materials from law, history, and social theory, this book integrates practical proposals for reform with larger issues of sexuality and identity. Beginning with a summary of existing demographic data and offering a historical overview of pre-Stonewall views …


Controlling Influenza A (H1n1) In China: Bayesian Or Frequentist Approach, Dejian Lai, Chiehwen Ed Hsu Jul 2009

Controlling Influenza A (H1n1) In China: Bayesian Or Frequentist Approach, Dejian Lai, Chiehwen Ed Hsu

Chiehwen Ed Hsu

In this article we discuss two approaches to controlling the newly identified influenza A (H1N1) via Bayesian and frequentist statistical reasoning. We reviewed the measures implemented in China as an example to illustrate these two approaches. Since May 2009, China has deployed strict controlling mechanisms based on the strong prior Bayesian assumption that the origin of influenza A (H1N1) was from outside China and as such strict border control would keep the virus from entering China. After more than two months of hard work by Chinese health professionals and officials, the number of confirmed influenza A (H1N1) has increased steadily …


Whether To Get An H1n1 Vaccination Or Not?, Chiehwen Ed Hsu May 2009

Whether To Get An H1n1 Vaccination Or Not?, Chiehwen Ed Hsu

Chiehwen Ed Hsu

In this interview Dr. Hsu provided public health informatics expertise to answer why or why not to receive H1N1 vaccination.


Swine Flu Myths - Experts Debunk Four Common Myths About Swine Flu, Chiehwen Ed Hsu May 2009

Swine Flu Myths - Experts Debunk Four Common Myths About Swine Flu, Chiehwen Ed Hsu

Chiehwen Ed Hsu

To date, no evidence has been found to link eating or handling pork to contracting swine flu. As the cases of the new swine flu virus continue to rise, so too do the misconceptions about the illness. "By eating pork or handling pork products you won't [contract] H1N1," said Ed Hsu, an associate professor of health informatics at the University of Texas Health Science Center and a contributor to ABC News's OnCall+ Swine Flu site. "There is no scientific evidence or literature or any studies that suggest that one contracts H1N1 virus through eating pork or handling pork products." Additionally, …


Should I Wear A Mask To Protect Myself From The Flu?, Chiehwen Ed Hsu May 2009

Should I Wear A Mask To Protect Myself From The Flu?, Chiehwen Ed Hsu

Chiehwen Ed Hsu

It depends. If you already have H1N1 virus infection, you are recommended to wear a mask just to prevent yourself from spreading the virus to others.