Digital Commons Network^™

Association Between Smartphone Addiction And Mental Health During The Covid-19 Pandemic 2021 Among Inner Mongolia Medical University Students, The People's Republic Of China, Longlong Zhao

Chulalongkorn University Theses and Dissertations (Chula ETD)

Smartphone is currently playing a crucial role; consequently, many smartphone users have become addicted and eventually resulted in psychological problems. This study intends to assess an association between smartphone addition and mental health among students of Inner Mongolia Medical University. The researcher employed random sampling technique in data collection by having 500 students of Inner Mongolia Medical University. The questionnaires distributed cover such topics as demographic characteristics; smartphone use behaviors; smartphone addiction scale (SAS-SV) questionnaire; life experience during COVID-19 questionnaire and depression anxiety and stress Scale (DASS-21) questionnaire. As for data analysis, binary logistic regression and multivariable logistic regression for …

Stress Of Thai Dentists During Covid-19 Pandemic In Thailand, Athikhun Praditpapha

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: COVID-19 pandemic is a public health emergency of international concern with many countries affected including Thai. Due to the nature of the work, dental practitioner is a high-risk professional to contract the disease. Many studies were conducted to study the impact of the situation on mental health of both general population and health care personnel. However, there are scant data about the stress of Thai dental practitioner caused by COVID-19 and the associated factors. Objectives: The primary aims of this study were to investigate the prevalence and level of stress, along with its risk/protective factors. The secondary aim was …

The Effect Of Acemannan In Implant Placement With Simultaneous Bone Graft In Esthetic Zone : A Randomized Controlled Trial, Nataporn Deesricharoenkiat

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: Acemannan, a linear polysaccharide produced by Aloe vera has been shown to have important biological functions promoting wound healing and tissue regeneration. Objective: The aim of this randomized clinical trial was to investigate the impact of acemannan in guided bone regeneration (GBR) with simultaneous implant. Materials and methods: Twenty patients were randomly allocated to test- (Deproteinized bovine bone with Acemannan particulate with mean size of 32.45µm) and control groups (Deproteinized bovine bone only). Twenty implants were placed with simultaneous GBR. CBCT radiographic measurements were conducted immediately and at 3- and 6-months post-surgery. Vertical and horizontal dimensions of the buccal …

Virtual Learning Prototype In Flipped Classroom For Developing English Listening And Reading Skills Of Undergraduates In Thai Higher Education Institutions, Hambalee Jehma

Chulalongkorn University Theses and Dissertations (Chula ETD)

The purpose of this research and development study was (1) to explore and analyze the level of English receptive skills of undergraduates studying in Thai higher education institutions, (2) to develop the prototype of virtual learning as implemented in flipped classrooms in improving Thai undergraduates' English receptive skills, and (3) to evaluate the effectiveness of the developed prototype of virtual learning as a tool implemented in flipped classrooms in developing Thai undergraduates' English receptive skills. The research methodology was explained as follows: the samples of this study were 160 undergraduate students, and 40 students from four regions of Thailand, namely …

Binary Particle Swarm Optimization Algorithm For Optimization Of Steel Structure, Atitaya Chaiwongnoi

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research studies on the performance of Binary Particle Swarm Optimization (BPSO) algorithm. The first part is finding the best inertia weight of BPSO from various types of inertia weight. The second part is optimizing the cross-sectional area of steel structures and topology of bracing system under vertical and lateral load. The structures studied in the research include unbraced frames and X-braced frames. Moreover, the braced frame also investigates the influence of the classification groups of elements. The elements are classified into finer groups than the original group. The design of the structure follows the AISC code. From the investigation …

การเปลี่ยนแปลงความหมายเชิงการอ้างถึงของสรรพนาม “มัน” ในภาษาไทยสมัยรัตนโกสินทร์, จิณวัฒน์ แก่นเมือง

Chulalongkorn University Theses and Dissertations (Chula ETD)

งานวิจัยนี้มีวัตถุประสงค์ในการศึกษาการเปลี่ยนแปลงความหมายเชิงการอ้างถึงของสรรพนาม มัน ในภาษาไทยสมัยรัตนโกสินทร์ และศึกษากลไกที่ทำให้สรรพนาม มัน เปลี่ยนแปลงความหมายเชิงการอ้างถึงเป็นอบุรุษสรรพนาม ผู้วิจัยแบ่งสมัยของข้อมูลออกเป็น 5 สมัย สมัยละ 50 ปี โดยเริ่มตั้งแต่ พ.ศ. 2301 – 2550 สำหรับสมัยที่ 1 – 4 ผู้วิจัยใช้ข้อมูลตัวบทร้อยแก้วจำนวน 40 ตัวบทจากรายการตัวบทของคลังข้อมูลภาษาไทยเชิงประวัติแห่งชาติ ส่วนสมัยที่ 5 ผู้วิจัยใช้ข้อมูลจากคลังข้อมูลภาษาไทยแห่งชาติ ผู้วิจัยมีสมมติฐาน 2 ข้อ กล่าวคือ 1) สรรพนาม มัน เริ่มแสดงความหมายเชิงวัจนปฏิบัติในช่วงที่ 3 (พ.ศ. 2401 – 2450) และเริ่มไม่แสดงความหมายเชิงการอ้างถึงในสมัยที่ 4 (ตั้งแต่ พ.ศ. 2451เป็นต้นมา) และ 2) การกลายเป็นอัตวิสัยเป็นกลไกที่ทำให้สรรพนาม มัน เกิดการขยายความหมายเชิงการอ้างถึงจนเปลี่ยนจากสรรพนามอ้างถึงไปเป็นอบุรุษสรรพนาม ผลการศึกษาปฏิเสธสมมติฐานข้อแรก ผู้วิจัยพบว่าสรรพนาม มัน แสดงความหมายหมายเชิงการอ้างถึงในทุกตำแหน่งการปรากฏ ผลการศึกษาพบว่าความหมายเชิงการอ้างถึงของสรรพนามมันแบ่งออกเป็น 2 ประเภท ได้แก่ ความหมายอ้างถึงเชิงอรรถศาสตร์ และความหมายอ้างถึงเชิงวัจนปฏิบัติ ความหมายอ้างถึงเชิงอรรถศาสตร์จะเกิดเมื่อสรรพนาม มัน ปรากฏร่วมกับรูปอ้างอิงนำแสดงรูป รูปอ้างอิงนำแสดงรูปแบ่งออกเป็น 4 ประเภท ได้แก่ นามวลี กริยาวลี อนุพากย์ และข้อความ รูปอ้างอิงนำแต่ละประเภทจะแสดงสิ่งอ้างถึงแตกต่างกันไป กล่าวคือ สรรพสิ่ง การกระทำ เหตุการณ์เดี่ยว และเหตุการณ์ซับซ้อนตามลำดับ ส่วนความหมายอ้างถึงเชิงวัจนปฏิบัติจะเกิดเมื่อสรรพนาม มัน ปรากฏร่วมกับรูปอ้างอิงนำโดยนัย ผู้ฟังต้องทำความเข้าใจสิ่งอ้างถึงด้วยการอนุมานจากปริบท สิ่งอ้างถึงที่ปรากฏในความหมายแสดงการอ้างถึงเชิงวัจนปฏิบัติแบ่งเป็น 3 ประเภท ได้แก่ สิ่งอ้างถึงจากปริบท ประธานผู้กล่าวถ้อย และความรู้ร่วมระหว่างผู้พูดและผู้ฟัง อย่างไรก็ตาม ผลการศึกษายืนยันสมมติฐานข้อที่สอง ผู้วิจัยพบว่ากลไกที่มีอิทธิพลต่อการเปลี่ยนแปลงประกอบด้วย 3 กลไก ได้แก่ การวางนัยยะทั่วไป การกลายเป็นอัตวิสัย และการกลายเป็นสหวิสัย การวางนัยยะทั่วไปเป็นกลไกที่ทำให้ความหมายเชิงการอ้างถึงของสรรพนาม มัน เกิดการขยายขอบเขตของรูปอ้างอิงนำ …

The Virocene Epoch: The Vulnerability Nexus Of Viruses, Capitalism And Racism, Jude Fernando

Sustainability and Social Justice

COVID-19 has ushered in a new planetary epoch—the Virocene. In doing so, it has laid bare the limits of humanity’s power over nature, exposing the vulnerability of ‘normal’ ways of living and their moral and pragmatic bankruptcy in coping with those vulnerabilities. ‘Normal’ is powerless against the virus and has not worked for a majority of the world’s human and non-human population. Whatever new normal humanity fashions depends on the socio-ecological change set in motion by mutations between human and non-human species. The outcomes of society’s responses to the pandemic depend on how human agency, as an embodiment of social, …

The Sanctuary Of Prosecutorial Nullification, Zohra Ahmed

Scholarly Works

In the aftermath of the 2016 election, the shortcomings of existing sanctuary protections came sharply into focus.1 Historically, cities enacted sanctuary protections to extricate their law enforcement agencies from activities related to federal immigration enforcement. In sanctuary cities, local government agencies are typically restricted from sharing information with federal immigration authorities or from cooperating in apprehending individuals targeted for removal.2 After the White House issued an Executive Order (EO) in late January 2017, many immigrant rights advocates recognized that external facing policies that proscribed direct cooperation would not suffice.3 The EO announced that Immigration and Customs Enforcement (ICE) would prioritize …

Household Risk Factors For Malaria Among Children Under 10 In Southwest Burkina Faso, Mckenzie Colt

Public Health Theses

Malaria transmission occurs both indoors and outdoors, and housing and peri-domestic characteristics have been associated with higher risks of malaria. Previous research in Burkina Faso has demonstrated that vector density within households varies greatly, though contributing factors are less clear. In the context of a cluster-randomized trial in a rural region of southwest Burkina Faso, the associations between household structural and behavioral factors with vector density will be presented. General household surveys were completed detailing the external housing characteristics of wall and roof materials, number of individual sleeping rooms, number of individuals in the household, and ITN use. All enrolled …

Marketing Of (Bms): Content Analysis Of Breast Milk Substitutes Digital Marketing On Chinese E-Commerce Platforms, Shannon Han

Public Health Theses

Background: China has one of the largest and fastest-growing breast milk substitutes (BMS) industries and a disproportionately low exclusive breastfeeding rate. The rapid penetration of technology and the internet, together with convenience-oriented lifestyles, has led to the dominance of the e-commerce industry in China. Many BMS manufacturers have established e-commerce flagship stores and use them as main retail and marketing channels.

Objective: This study aimed to analyze the BMS retail websites on the largest business to consumer (B2C) e-commerce platform TMall, to characterize the marketing themes and strategies used to target consumers. It was specifically designed to improve our understanding …

Creating An Antibody Digestive Curve In Cx. Quinquefasciatus Mosquitoes, Christina Ann Harden

Public Health Theses

Eastern Equine Encephalitis virus (EEEV) is an endemic arbovirus of increasing importance

in the United States. It is perpetuated via an enzootic cycle between Culiseta melanura

mosquitoes and avian reservoirs. In the northeast, transmission has distinct seasonality

and its overwintering mechanism is unknown. Xenosurveillance has been identified as a

possible way to elucidate viral circulation dynamics in states such as Connecticut that are

experiencing a resurgence of human EEE cases, potentially exacerbated by factors

associated with global climate change. This study sought to experimentally create an

antibody digestive curve for both mammalian and avian bloodmeals in Cx. quinquefasciatus

mosquitoes. Using …

Cardiovascular Outcomes In Hypertension As Defined By Proof-Bp Using Nhanes 2015-2016, Kamran Javadi

Public Health Theses

Hypertension is one of the most common medical conditions, affecting nearly one-third of Americans.1 Chronic high blood pressure is the cause of numerous cardiovascular diseases which cost the United States over $100 billion annually.1 The American College of Cardiology and American Heart Association have recently challenged the previous definition of hypertension by suggesting those with a blood pressure of ≥130/80 mmHg now have the disease.2 This new threshold would classify nearly 50% of Americans as hypertensive.2 Establishing a diagnosis of hypertension can be difficult and resource intensive requiring patients to have serial recordings over 24-hours. Until recently there has been …

Investigating The Community-Level Variation In Hookworm Prevalence In The Kpandai District, Ghana: A Mixed-Methods Study, Harry Hyunteh Hyunteh Kim

Public Health Theses

Soil-transmitted helminths are a major cause of disability and morbidity in resource-poor settings: over 1.5 billion are estimated to be at risk of infection. Human behaviors and household socioeconomic conditions that facilitate contact with contaminated soil may increase exposure to parasites. The primary objective of the study was to investigate the community-level variation in hookworm prevalence in the Kpandai district of Ghana.

We used a mixed-methods approach to investigate behavioral, societal and environmental risk factors to hookworm exposure. 264 individuals from three neighboring villages (Jagbigbingdo [JG], Takumdo [TK], Wiae Chabor [WC]) were recruited using a convenience sampling strategy. Household questionnaires …

Birth Outcomes Associated With Heavy Metal Exposures In The Surroundings Of A Former Chemical Plant In Târnăveni, Romania, Jenny Wai Kun

Public Health Theses

Heavy metal exposures have long been a public health concern, research on this field may promote policies and regulations to restrict or limit certain industrial practices. This study aims to evaluate potential associations between toxic heavy metal exposures via contaminated environmental media and the frequency of the birth defects in the designated area: Tarnaveni, Romania; historically contaminated by a former chemical plant. In 2018, a pilot investigation conducted on the site demonstrated that chromium (Cr), lead (Pb), and manganese (Mn) are common heavy metal contaminants found. Soil concentrations for all three metals exceeded normal background levels according to Romanian Environmental …

A Qualitative Analysis On The Transitions Of Afghan Refugee Families To The U.S. And Their Parenting Experiences, Jessica Kung Leung

Public Health Theses

Introduction: Refugee families can face particularly multifaceted challenges during their transition to the U.S. There is currently little research on the experience of parenting during Afghan refugees’ transitions to the U.S. This study seeks to better understand these individuals’ experiences of parenting and their descriptions of their children’s transitions to the U.S. in the context of the greater New Haven area.

Methods: We conducted a secondary analysis on interview data with 19 recently-arrived Afghan refugee parents based in the greater New Haven area; 10 fathers and 9 mothers were interviewed from August 2019 to January 2020. We used thematic analysis …

Evidence-Based Interventions For Antimicrobial Resistance In Conflict-Afflicted Lmics, Noora M. Reffat

Public Health Theses

Introduction: Although control strategies for antimicrobial resistance (AMR) have been described in high-income settings, interventions to curb the emergence and spread of AMR in conflict-afflicted low- and middle-income countries (LMICs) have not been systematically explored.

Objective: The objective of this review was to identify and assess the effectiveness of various control strategies in curbing the emergence and spread of AMR in conflict-afflicted LMICs.

Methods: A systematic scoping review of the literature was conducted using Embase, PubMed, and Scopus to identify primary literature reporting on AMR in Pakistan, Lebanon, Jordan, or Turkey published in the last decade (Jan. 2010 – Jan. …

Are Food Baskets Helpful For Refugees With Chronic Illnesses In Sub-Saharan Africa?, Anthony Russell

Public Health Theses

ABSTRACT

Refugees are among some of the most vulnerable populations in our world today. Food insecurity appears to be a consistent state among many refugee populations regardless of length of refugee status and setting. The primary study aims were to: a) identify factors influencing refugees’ ability to manage their chronic illnesses; b) describe food insecurity and dietary intake among refugees with chronic illnesses; c) understand the role food baskets play for this population.

A cross-sectional mixed methods study was conducted in two phases. Phase 1 consisted of 10 in-depth interviews with older adult refugees to identify factors influencing their management …

Promoting Ecosystem And Human Health Under Climate Change ——An Integrated Analysis Of Sustainable Olive Cultivation In Cyprus, Ningjing Wang

Public Health Theses

Achieving agricultural sustainability has become a high priority to ensure society’s current and future food needs without compromising ecosystem health, economic profitability, and human well-being. Organic agriculture has been proposed as an alternative to conventional farming for meeting sustainable goals. However, empirical evidence linking organic farming, human health, and sustainability in the context of climate change is scarce. In addition, previous studies comparing organic and conventional agriculture have not considered the variation in farming practices within the same management regime.

In this study, a multi-criteria sustainability assessment framework with ten indicators has been developed and proposed for sustainable olive cultivation …

Solid Fuel-Related Indoor Air Pollution And Poor Sleep Quality In Adults Aged 45 Years And Older; A National Longitudinal Study In China, Haiqing Yu

Public Health Theses

Background: Sleep disorders are a common public health issue in an aging society. Outdoor air pollution has been linked to poor sleep quality, but few studies have investigated the relationship between indoor air pollution derived from solid fuel combustion and sleep quality in elderly.

Objective: To evaluate the association between indoor air pollution due to cooking solid fuels and sleep quality among adults aged 45 years and elderly in China.

Methods: We analyzed data from the China Health and Retirement Survey (CHARLS), a national survey of ~17,000 residents aged over 45 from 150 counties/districts in China. Participants were restricted to …

Speech, Innovation, And Competition, Greg Day

Scholarly Works

Critics contend that concentrated power in digital markets has generated threats to free speech. For a variety of reasons, market power is naturally thought to concentrate in digital markets. The consequence is that “big tech” is said to face little competition; Facebook controls 72 percent of the social media market while the parent of YouTube (72 percent of the video market) is Google (92 percent of the search market). This landscape has potentially vested private companies with unprecedented power over the flow of information. If Facebook, for example, decides to ban certain types of speech or ideas, it would potentially …

Taking A Joke Seriously: When Does Humor Affect Responses To The Slurring Of People With Intellectual Disabilities?, Jennifer Katz, Dimitri Wing-Paul

Psychology

The use of humor may affect how bystanders respond to slurs. Undergraduates (N = 192) completed a measure of prejudice towards people with intellectual disabilities and were randomly assigned to read a scenario in which a peer uses a slur either as part of a joke (humor condition) or a statement (control condition). Participants responded to measures of intent to assertively respond and their evaluation of the speaker. Humor inhibited intent to nonverbally disagree and to verbally confront. Bystanders’ own prejudicial attitudes moderated the effects of humor on intent to verbally confront and negative evaluation. In the humor condition, compared …

Global Interest For Health Professions Education: A Geographic And Temporal Analyses Through Web Search Differences From 2010-2019, Junhel Dalanon, Yoshizo Matsuka

Internet Journal of Allied Health Sciences and Practice

Purpose: The purpose of this study was to analyze the spatio-temporal differences in web search trends for dental degrees (DD), medical degrees (MD), and nursing degrees (ND) across 197 countries from 2010 to 2019. Method: A search string was used to initiate a search query using Google Trends. The parameters used were DD, MD, and ND as search terms; worldwide as Location; 2010 to 2019 as time range; health education & medical training as category; and web search as database. Data were downloaded and analyzed. Results: Via one-way ANOVA and post hoc Dunnett test, the searches for DD were found …

Mems Biosensor For Water-Immersed Application, Kun-Lin Lee

Dissertations and Theses

Although many air-based sensing mechanisms exist, not all of them can be applied in the water-based environment. In order to obtain a cell-based biosensor, the sensing method needs to be reliable and repeatable in a liquid environment. Therefore, this study is focused on transforming existing air-based sensors to water-immersed applications. This study includes two types of sensors.

First, commercial quartz resonators are used to investigate live-cell activity in water-based toxic solutions. I perform toxicity tests using quartz crystal microbalance (QCM). The QCM used in the study has a resonant frequency of 10 MHz and consists of an AT-cut quartz crystal …

Influence Of Transdermal Current Flow In Tdcs-Induced Cutaneous Adverse Events, Niranjan Khadka

Dissertations and Theses

Significant contributors to the broad application of transcranial direct current stimulation (tDCS) are portability, ease-of-use, and tolerability; with adverse events limited to transient and mild cutaneous sensations (e.g. perception of burning, itching, and tingling) and erythema. However, the fundamental questions remain about the mechanism of transdermal current flow during transcranial electrical stimulation, including tDCS. Example of previously unexplained questions in tDCS include: 1) the relationship between tDCS-induced skin reddening (erythema) profile and local current density profile predicted by the model; 2) the source of burning sensation during tDCS and whether it is related to an actual skin heating; 3) the …

Diffuse Damage Repair Mechanism In Bone, Leila Mehraban Alvandi

Dissertations and Theses

Bone microdamage is a result of fatigue, creep or ‘wear and tear’ caused by physiological activities and largely contributes to bone fragility. Bone, unlike engineered materials, has the ability to repair the microscopic cracking or microdamage through targeted, osteoclast-mediated bone remodeling. This capability is crucial for preservation of its structural integrity and quality; failure of the skeleton to effectively repair microdamage leads to accumulation of damage, which is one of the main contributors to bone fragility. Linear microcracks (50-100 µm) and diffuse damage (Dif.Dx) (sub-micron) are the two types of microdamage. Recent studies show that Dif.Dx repairs without bone remodeling, …

Characterization Of Bone Pathology In Sickle Cell Disease And Therapeutic Strategies, Mykel D. Green

Dissertations and Theses

Sickle cell disease (SCD) is a genetic hemoglobinopathy that has grown into a global health concern. While the advances in medical treatment and management of SCD during childhood have drastically improved the overall survival of children, the transition from pediatric to adult services is significantly inadequate in comparison. Life expectancies of patients with SCD in first world countries such as the United States are shortened to averages of 42 and 48 years for men and women, respectively. Despite the increasing number of people living with SCD, remarkably, few detailed studies have described the clinical course and complications of the disease …

Humayun Ahmed And Archival Hauntings: The Subaltern Experience Of The 1971 Liberation War Of Bangladesh As Portrayed In Debi, Nilima Islam

Dissertations and Theses

In this paper, I argue how Humayun Ahmed's Debi offers insight into the function that archives play in creating radical nationalism in a country like Bangladesh; how these archives work to consolidate political power for a select few, and how they further subjugate and silence the country’s subalterns.

Oscar Wilde's Fiction: Views On Life And Art, Robert C. Derosa

Dissertations and Theses

Oscar Wilde depicts different views on life and art. The stories selected have common themes of wealth (monetary/non-monatary), love, devotion, self-destruction and death:: The Picture of Dorian Gray, "The Happy Prince," "The Devoted Friend," "The Selfish Giant," and "The Rose and the Nightingale." These four fairy tales tie in nicely with Wilde's novel to show the true value of life and art.

The Paganist Totem Birds In Slavic Folklore: The Black And The White, Anastasia Radzievska

Dissertations and Theses

It is believed that pagan cosmology once ran strong through the Slavic countries and traces are visible through the passed down folklore that spread through the land. While we talk of animals and their representation in folklore, we usually only refer to the Christian written western folklore, but these pagan born animals stand in strong contrast to them. The Slavic people believed that the world was made of diverse natural forces that shared what the Earth had to offer and worked in unison to protect one another, whereas the Christian belief saw the world as a distinct separation of man …

The Cultural Dual Identity In Cristina Garcia's Dreaming In Cuban And Julia Alvarez's How The Garcia Girls Lost Their Accents, Azahria John-Otway

Dissertations and Theses

Cristina Garcia's Dreaming in Cuban and Julia Alvarez's How the Garcia Girls Lost their Accents are two novels that explore the effects immigration can have on the development of one's identity, respectively. Throughout both novels, it is understood that in order for an immigrant to have a sense of belonging, an exploratory journey of the self must be made. In making this journey, literally and figuratively, the immigrant person begins to appreciate their homeland and immigrated home, thus feeling a sense of belonging and accepting they are of a cultural dual identity.