Matching Items (283)
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Description

Background: Extreme heat is a public health challenge. The scarcity of directly comparable studies on the association of heat with morbidity and mortality and the inconsistent identification of threshold temperatures for severe impacts hampers the development of comprehensive strategies aimed at reducing adverse heat-health events.

Objectives: This quantitative study was designed

Background: Extreme heat is a public health challenge. The scarcity of directly comparable studies on the association of heat with morbidity and mortality and the inconsistent identification of threshold temperatures for severe impacts hampers the development of comprehensive strategies aimed at reducing adverse heat-health events.

Objectives: This quantitative study was designed to link temperature with mortality and morbidity events in Maricopa County, Arizona, USA, with a focus on the summer season.

Methods: Using Poisson regression models that controlled for temporal confounders, we assessed daily temperature–health associations for a suite of mortality and morbidity events, diagnoses, and temperature metrics. Minimum risk temperatures, increasing risk temperatures, and excess risk temperatures were statistically identified to represent different “trigger points” at which heat-health intervention measures might be activated.

Results: We found significant and consistent associations of high environmental temperature with all-cause mortality, cardiovascular mortality, heat-related mortality, and mortality resulting from conditions that are consequences of heat and dehydration. Hospitalizations and emergency department visits due to heat-related conditions and conditions associated with consequences of heat and dehydration were also strongly associated with high temperatures, and there were several times more of those events than there were deaths. For each temperature metric, we observed large contrasts in trigger points (up to 22°C) across multiple health events and diagnoses.

Conclusion: Consideration of multiple health events and diagnoses together with a comprehensive approach to identifying threshold temperatures revealed large differences in trigger points for possible interventions related to heat. Providing an array of heat trigger points applicable for different end-users may improve the public health response to a problem that is projected to worsen in the coming decades.

ContributorsPettiti, Diana B. (Author) / Hondula, David M. (Author) / Yang, Shuo (Author) / Harlan, Sharon L. (Author) / Chowell, Gerardo (Author)
Created2016-02-01
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Maricopa County, Arizona, anchor to the fastest growing megapolitan area in the United States, is located in a hot desert climate where extreme temperatures are associated with elevated risk of mortality. Continued urbanization in the region will impact atmospheric temperatures and, as a result, potentially affect human health. We aimed

Maricopa County, Arizona, anchor to the fastest growing megapolitan area in the United States, is located in a hot desert climate where extreme temperatures are associated with elevated risk of mortality. Continued urbanization in the region will impact atmospheric temperatures and, as a result, potentially affect human health. We aimed to quantify the number of excess deaths attributable to heat in Maricopa County based on three future urbanization and adaptation scenarios and multiple exposure variables.

Two scenarios (low and high growth projections) represent the maximum possible uncertainty range associated with urbanization in central Arizona, and a third represents the adaptation of high-albedo cool roof technology. Using a Poisson regression model, we related temperature to mortality using data spanning 1983–2007. Regional climate model simulations based on 2050-projected urbanization scenarios for Maricopa County generated distributions of temperature change, and from these predicted changes future excess heat-related mortality was estimated. Subject to urbanization scenario and exposure variable utilized, projections of heat-related mortality ranged from a decrease of 46 deaths per year (− 95%) to an increase of 339 deaths per year (+ 359%).

Projections based on minimum temperature showed the greatest increase for all expansion and adaptation scenarios and were substantially higher than those for daily mean temperature. Projections based on maximum temperature were largely associated with declining mortality. Low-growth and adaptation scenarios led to the smallest increase in predicted heat-related mortality based on mean temperature projections. Use of only one exposure variable to project future heat-related deaths may therefore be misrepresentative in terms of direction of change and magnitude of effects. Because urbanization-induced impacts can vary across the diurnal cycle, projections of heat-related health outcomes that do not consider place-based, time-varying urban heat island effects are neglecting essential elements for policy relevant decision-making.

ContributorsHondula, David M. (Author) / Georgescu, Matei (Author) / Balling, Jr., Robert C. (Author)
Created2014-04-28
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Preventing heat-associated morbidity and mortality is a public health priority in Maricopa County, Arizona (United States). The objective of this project was to evaluate Maricopa County cooling centers and gain insight into their capacity to provide relief for the public during extreme heat events. During the summer of 2014, 53

Preventing heat-associated morbidity and mortality is a public health priority in Maricopa County, Arizona (United States). The objective of this project was to evaluate Maricopa County cooling centers and gain insight into their capacity to provide relief for the public during extreme heat events. During the summer of 2014, 53 cooling centers were evaluated to assess facility and visitor characteristics. Maricopa County staff collected data by directly observing daily operations and by surveying managers and visitors. The cooling centers in Maricopa County were often housed within community, senior, or religious centers, which offered various services for at least 1500 individuals daily. Many visitors were unemployed and/or homeless. Many learned about a cooling center by word of mouth or by having seen the cooling center’s location. The cooling centers provide a valuable service and reach some of the region’s most vulnerable populations. This project is among the first to systematically evaluate cooling centers from a public health perspective and provides helpful insight to community leaders who are implementing or improving their own network of cooling centers.

ContributorsBerisha, Vjollca (Author) / Hondula, David M. (Author) / Roach, Matthew (Author) / White, Jessica R. (Author) / McKinney, Benita (Author) / Bentz, Darcie (Author) / Mohamed, Ahmed (Author) / Uebelherr, Joshua (Author) / Goodin, Kate (Author)
Created2016-09-23
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Critical flicker fusion thresholds (CFFTs) describe when quick amplitude modulations of a light source become undetectable as the frequency of the modulation increases and are thought to underlie a number of visual processing skills, including reading. Here, we compare the impact of two vision-training approaches, one involving contrast sensitivity training

Critical flicker fusion thresholds (CFFTs) describe when quick amplitude modulations of a light source become undetectable as the frequency of the modulation increases and are thought to underlie a number of visual processing skills, including reading. Here, we compare the impact of two vision-training approaches, one involving contrast sensitivity training and the other directional dot-motion training, compared to an active control group trained on Sudoku. The three training paradigms were compared on their effectiveness for altering CFFT. Directional dot-motion and contrast sensitivity training resulted in significant improvement in CFFT, while the Sudoku group did not yield significant improvement. This finding indicates that dot-motion and contrast sensitivity training similarly transfer to effect changes in CFFT. The results, combined with prior research linking CFFT to high-order cognitive processes such as reading ability, and studies showing positive impact of both dot-motion and contrast sensitivity training in reading, provide a possible mechanistic link of how these different training approaches impact reading abilities.

ContributorsZhou, Tianyou (Author) / Nanez, Jose (Author) / Zimmerman, Daniel (Author) / Holloway, Steven (Author) / Seitz, Aaron (Author) / New College of Interdisciplinary Arts and Sciences (Contributor)
Created2016-10-26
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Although autism spectrum disorder (ASD) is a serious lifelong condition, its underlying neural mechanism remains unclear. Recently, neuroimaging-based classifiers for ASD and typically developed (TD) individuals were developed to identify the abnormality of functional connections (FCs). Due to over-fitting and interferential effects of varying measurement conditions and demographic distributions, no

Although autism spectrum disorder (ASD) is a serious lifelong condition, its underlying neural mechanism remains unclear. Recently, neuroimaging-based classifiers for ASD and typically developed (TD) individuals were developed to identify the abnormality of functional connections (FCs). Due to over-fitting and interferential effects of varying measurement conditions and demographic distributions, no classifiers have been strictly validated for independent cohorts. Here we overcome these difficulties by developing a novel machine-learning algorithm that identifies a small number of FCs that separates ASD versus TD. The classifier achieves high accuracy for a Japanese discovery cohort and demonstrates a remarkable degree of generalization for two independent validation cohorts in the USA and Japan. The developed ASD classifier does not distinguish individuals with major depressive disorder and attention-deficit hyperactivity disorder from their controls but moderately distinguishes patients with schizophrenia from their controls. The results leave open the viable possibility of exploring neuroimaging-based dimensions quantifying the multiple-disorder spectrum.

ContributorsYahata, Noriaki (Author) / Morimoto, Jun (Author) / Hashimoto, Ryuichiro (Author) / Lisi, Giuseppe (Author) / Shibata, Kazuhisa (Author) / Kawakubo, Yuki (Author) / Kuwabara, Hitoshi (Author) / Kuroda, Miho (Author) / Yamada, Takashi (Author) / Megumi, Fukuda (Author) / Imamizu, Hiroshi (Author) / Nanez, Jose (Author) / Takahashi, Hidehiko (Author) / Okamoto, Yasumasa (Author) / Kasai, Kiyoto (Author) / Kato, Nobumasa (Author) / Sasaki, Yuka (Author) / Watanabe, Takeo (Author) / Kawato, Mitsuo (Author) / New College of Interdisciplinary Arts and Sciences (Contributor)
Created2016-04-14
Description

For decades, women in the field of sports media have battled for equality with their male counterparts. In 1972, Title IX was passed, stating that “no person in the United States shall, on the basis of sex, be excluded from participation in, be denied the benefits of, or be subject

For decades, women in the field of sports media have battled for equality with their male counterparts. In 1972, Title IX was passed, stating that “no person in the United States shall, on the basis of sex, be excluded from participation in, be denied the benefits of, or be subject to discrimination under any educational program or activity receiving Federal financial assistance.” In 1978, the iconic court case, Melissa Ludtke and Time Inc., v. Bowie Kuhn, Commissioner of Baseball, confirmed that the Fourteenth Amendment guarantees that women should be given the same rights as men, specifically in regards to locker room access. Today, legally women and men in the field of sports media have the same rights. But many people would argue that is not the case. In the five decades succeeding these milestones, women have continued their fight for a more level playing field. Women in sports media are largely stereotyped, they are often judged based on their looks not their knowledge, they are underrepresented in a field that is male dominated. It could be assumed most women working in sports media have at least one instance where they have been judged on the basis of sex. And in 2021, sexual harassment allegations are still being made in the industry.. How will the events of this decade shape the future for women in this field? What strides are left to be made and how will they be achieved?

Created2021-05
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On March 12, 2020, The Walt Disney Company announced that its U.S. Disney Parks, Disneyland and Walt Disney World, would close because of COVID-19. This study aims to determine how park annual passholders and frequent guests of the U.S. Disney Parks reacted to COVID-19 related news from The Walt Disney

On March 12, 2020, The Walt Disney Company announced that its U.S. Disney Parks, Disneyland and Walt Disney World, would close because of COVID-19. This study aims to determine how park annual passholders and frequent guests of the U.S. Disney Parks reacted to COVID-19 related news from The Walt Disney Company and if it impacts their decision to visit the parks. To determine this, five focus groups were conducted with annual passholders and frequent guests of the U.S. Disney Parks. Their social media habits, relationship with The Walt Disney Company, and reactions to COVID-19 related news was discussed. The results showed that while annual passholders and frequent guests may get their information from third party accounts, face confusion on some topics, and have reservations about COVID-19 during park reopenings, they still trust The Walt Disney Company and are eager to enter the parks again.
ContributorsHoldaway, Emily (Author) / Gilpin, Dawn (Thesis director) / Bovio, Sonia (Committee member) / School of Politics and Global Studies (Contributor) / Walter Cronkite School of Journalism & Mass Comm (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2020-12
Description
Fruit King a personal and historical audio narrative of a Sicilian immigrant turned American success completed in conjunction with the Walter Cronkite School of Journalism and Mass Communication and Barrett, The Honors College at Arizona State University. This project was completed with the guidance and support of thesis director, Dr.

Fruit King a personal and historical audio narrative of a Sicilian immigrant turned American success completed in conjunction with the Walter Cronkite School of Journalism and Mass Communication and Barrett, The Honors College at Arizona State University. This project was completed with the guidance and support of thesis director, Dr. Dawn Gilpin and thesis second-chair, Dr. John Craft. This thesis project has been executed in the form of a podcast, website and research report that recounts and relishes in the legacy and life of Joseph DiGiorgio, the once 14-year-old who immigrated from Cefalu, Sicily to Ellis Island, New York in 1888. He went from selling fruit in a cart and borrowing money from the bank to establishing the Baltimore Fruit exchange and becoming the director of the Maryland National Bank by 21 years old. His billion-dollar business, the DiGiorgio Fruit Corporation, became the world’s largest fruit grower of grapes, plums and pears in the 1940s, and he landed a feature story in Fortune Magazine in 1946. To me, he is my great-great-great-uncle Joe, but to the world, he is what the New York Times crowned him: the Fruit King.
ContributorsMorton, Julianna Lee (Author) / Gilpin, Dawn (Thesis director) / Craft, John (Committee member) / Walter Cronkite School of Journalism & Mass Comm (Contributor) / School of Community Resources and Development (Contributor) / Barrett, The Honors College (Contributor)
Created2020-12
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Billions of people across the world use social media. Because a large portion of those users are college students between the ages of 20 and 22, this study sought to explore social media's effects on a female college student’s body image. The study’s research questions are: How does social media

Billions of people across the world use social media. Because a large portion of those users are college students between the ages of 20 and 22, this study sought to explore social media's effects on a female college student’s body image. The study’s research questions are: How does social media affect female college students’ feelings about their physical selves, and do such effects differ across platforms? Interview data are analyzed based on theories of social comparison, normative influence, narrative-induced transportation, media richness, and social presence. Results reveal that social media affects female college students' perceptions of physical images, and overall this effect is more often negative than positive. Also, Instagram offered a more perfectionist visual culture than Facebook and Twitter.
ContributorsEckstein, Susanna Marie (Author) / Kwon, Hazel (Thesis director) / Barrett, Marianne (Committee member) / Walter Cronkite School of Journalism & Mass Comm (Contributor) / School of Art (Contributor) / Barrett, The Honors College (Contributor)
Created2020-12
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Mathematical epidemiology, one of the oldest and richest areas in mathematical biology, has significantly enhanced our understanding of how pathogens emerge, evolve, and spread. Classical epidemiological models, the standard for predicting and managing the spread of infectious disease, assume that contacts between susceptible and infectious individuals depend on their relative

Mathematical epidemiology, one of the oldest and richest areas in mathematical biology, has significantly enhanced our understanding of how pathogens emerge, evolve, and spread. Classical epidemiological models, the standard for predicting and managing the spread of infectious disease, assume that contacts between susceptible and infectious individuals depend on their relative frequency in the population. The behavioral factors that underpin contact rates are not generally addressed. There is, however, an emerging a class of models that addresses the feedbacks between infectious disease dynamics and the behavioral decisions driving host contact. Referred to as “economic epidemiology” or “epidemiological economics,” the approach explores the determinants of decisions about the number and type of contacts made by individuals, using insights and methods from economics. We show how the approach has the potential both to improve predictions of the course of infectious disease, and to support development of novel approaches to infectious disease management.
Created2015-12-01