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Articles 481 - 510 of 662
Full-Text Articles in Statistics and Probability
Low Knowledge And Unawareness Of The Health Promotion As The Determinant Factors In Non-Compliance To The Mass Drug Administration Program, Nissa Noor Annashr, Icca Stella Amalia, Hoa Thi Phuong Dinh
Low Knowledge And Unawareness Of The Health Promotion As The Determinant Factors In Non-Compliance To The Mass Drug Administration Program, Nissa Noor Annashr, Icca Stella Amalia, Hoa Thi Phuong Dinh
Kesmas
From the total population of the community in Kuningan District, 78.61% were taking filariasis drugs in the Mass Drug Administration (MDA) program in 2017. Cilimus Subdistrict became a filariasis-endemic area in Kuningan with 72.39% of the MDA program coverage in 2017 (government target >86%). The purpose of this study was to analyze the determinant factors of compliance with the MDA program. The study was an analytical study with a cross-sectional design and conducted from May to June 2018. The sample of 106 people was taken from the population living in Cilimus Subdistrict, Kuningan District, using a simple random sampling technique. …
Patterns And Determinants Of Open Defecation Among Urban People, Vera Yulyani, Christin Angelina Febriani, Shaharuddin Ms, Dessy Hermawan
Patterns And Determinants Of Open Defecation Among Urban People, Vera Yulyani, Christin Angelina Febriani, Shaharuddin Ms, Dessy Hermawan
Kesmas
At the present time, an estimated of 673 million people defecate in the open space, not in private. Indonesia is a densely populated country with a lot of open defecation (OD) both in urban (37%) and rural areas (43%). Tanjung Karang Pusat Subdistrict is an area in Bandar Lampung City with the highest percentage of OD practice (45%). This study aimed to explore and explain the patterns and determinants of OD among urban people in the Tanjung Karang Pusat Subdistrict in- volving 377 respondents for quantitative analysis. Quantitative data were analyzed using the chi square and regression analysis. After controlling …
Risk Perception For Developing Erectile Dysfunction Among Malaysian Men With Type 2 Diabetes Mellitus, Anuar Mohamad, Hizlinda Tohid, Saharuddin Ahmad, Seng Fah Tong, Mahadir Ahmad
Risk Perception For Developing Erectile Dysfunction Among Malaysian Men With Type 2 Diabetes Mellitus, Anuar Mohamad, Hizlinda Tohid, Saharuddin Ahmad, Seng Fah Tong, Mahadir Ahmad
Kesmas
Risk perception for developing erectile dysfunction (ED) is an appreciation of the susceptibility to having ED and its severity. This study examined this risk perception and its associated factors among 180 men with type 2 diabetes mellitus (T2DM), who claimed not to have ED. This cross sectional study was conducted at a public health clinic using a validated self-administered questionnaire, which assessed participant characteristics, perceived susceptibility to developing ED, perceived severity of ED, and knowledge on risk factors for ED. About 71.1% had an inaccurate perception of susceptibility to developing ED and their perception on its severity was moderate (median …
Determinants Of Exclusive Breastfeeding Practices Of Female Healthcare Workers In Jakarta, Indonesia, Siti Rapingah, Nova Muhani, Besral Besral, Poppy Yuniar
Determinants Of Exclusive Breastfeeding Practices Of Female Healthcare Workers In Jakarta, Indonesia, Siti Rapingah, Nova Muhani, Besral Besral, Poppy Yuniar
Kesmas
The World Health Organization (WHO) recommended that mothers worldwide exclusively breastfeed their infants for the child's first six months to achieve optimal growth, development, and health. Indonesia had not fulfilled the global standard of breastfeeding rate so that there was low coverage of exclusive breastfeeding in East Jakarta, especially for female healthcare workers. This study aimed to determine the factors associated with exclusive breastfeeding practices of healthcare workers. This was a quantitative study using a cross-sectional design. The recruited sample consisted of 85 female public health center workers with infants aged 6-24 months. Data were collected using self-administered questionnaires. Logistic …
Evaluation Of Added Sugar And Sugar-Sweetened Beverage Consumption By University Students, Çağdaş Salih Meric, Nurcan Yabanci Ayhan, Hacı Ömer Yilmaz
Evaluation Of Added Sugar And Sugar-Sweetened Beverage Consumption By University Students, Çağdaş Salih Meric, Nurcan Yabanci Ayhan, Hacı Ömer Yilmaz
Kesmas
Today, increased intake of sugar and sugar-sweetened beverages is seen today as an important factor in the growing prevalence of chronic diseases, such as obesity, obesity-related diabetes, and coronary heart diseases. This study involved 214 university students from the Department of Nutrition and Dietetics of Ankara University, Faculty of Health Science, which was intended to evaluate the consumption of sugar and sugar-sweetened beverages. The frequency of student consumption of beverages and the quantities and amounts of sugar taken with beverages were questioned. The average total amount of sugar added to drinks by the students was 4.69 ± 6.35 gram, while …
Analysis And Publication Profile Of Indonesian Scientific Work In 2020 Based On The Scopus Database, Akbar Iskandar, Nico Djundharto Djajasinga, Andi Dirga Noegraha, Erwin Gatot, Ansari Saleh Ahmar
Analysis And Publication Profile Of Indonesian Scientific Work In 2020 Based On The Scopus Database, Akbar Iskandar, Nico Djundharto Djajasinga, Andi Dirga Noegraha, Erwin Gatot, Ansari Saleh Ahmar
Library Philosophy and Practice (e-journal)
This research was conducted to identify and describe the profile of publications in Indonesia in 2020. This research used the bibliometric methods. The data in this research were collected by searching through the Scopus database with the keywords: AFFILCOUNTRY “Indonesia” and PUBYEAR “2020” with the exception of AFFILCOUNTRY other than “Indonesia”. Data were then analyzed based on author affiliation, subject, document type, source type, source title, and language. The results of the research indicated that the development of Indonesian scientific publications was dominated by article types (50.69%) and conference papers (45.83%) with the subject area of publication dominated by engineering, …
Rural Residents' Perspectives On An Mhealth Or Personalized Health Coaching Intervention: Qualitative Study With Focus Groups And Key Informant Interviews, Nancy Schoenberg, Madeline Dunfee, Hannah Yeager, Matthew Rutledge, Angela Pfammatter, Bonnie Spring
Rural Residents' Perspectives On An Mhealth Or Personalized Health Coaching Intervention: Qualitative Study With Focus Groups And Key Informant Interviews, Nancy Schoenberg, Madeline Dunfee, Hannah Yeager, Matthew Rutledge, Angela Pfammatter, Bonnie Spring
Behavioral Science Faculty Publications
BACKGROUND: Compared with national averages, rural Appalachians experience extremely elevated rates of premature morbidity and mortality. New opportunities, including approaches incorporating personal technology, may help improve lifestyles and overcome health inequities.
OBJECTIVE: This study aims to gather perspectives on whether a healthy lifestyle intervention, specifically an app originally designed for urban users, may be feasible and acceptable to rural residents. In addition to a smartphone app, this program-Make Better Choices 2-consists of personalized health coaching, accelerometer use, and financial incentives.
METHODS: We convened 4 focus groups and 16 key informant interviews with diverse community stakeholders to assess perspectives on this …
Estimating The Size Of Georgia's Resident Canada Goose Population, Gregory D. Balkcom
Estimating The Size Of Georgia's Resident Canada Goose Population, Gregory D. Balkcom
Georgia Journal of Science
Canada geese (Branta canadensis) are an important waterfowl species in Georgia, and are hunted across the state. To meet management objectives, managers need to understand the impacts of hunting regulations on the population of interest. Therefore, reliable population estimates are necessary. Population size can be estimated by various methods, including aerial surveys, ground surveys, or population indices such as the Lincoln Estimator. I used annual estimates of resident Canada goose harvest in Georgia from the U.S. Fish and Wildlife Service’s Harvest Information Program along with banding and recovery data from the Bird Banding Laboratory in a bias-adjusted version …
Real World Clinicopathologic Observations Of Patients With Metastatic Solid Tumors Receiving Immune Checkpoint Inhibitor Therapy: Analysis From Kentucky Cancer Registry, Aasems Jacob, Jianrong Wu, Jill M. Kolesar, Eric B. Durbin, Aju Mathew, Susanne Arnold, Aman Chauhan
Real World Clinicopathologic Observations Of Patients With Metastatic Solid Tumors Receiving Immune Checkpoint Inhibitor Therapy: Analysis From Kentucky Cancer Registry, Aasems Jacob, Jianrong Wu, Jill M. Kolesar, Eric B. Durbin, Aju Mathew, Susanne Arnold, Aman Chauhan
Biostatistics Faculty Publications
The state of Kentucky has the highest cancer incidence and mortality in the United States. High‐risk populations such as this are often underrepresented in clinical trials. The study aims to do a comprehensive analysis of molecular landscape of metastatic cancers among these patients with detailed evaluation of factors affecting response and outcomes to immune checkpoint inhibitor (ICI) therapy. We performed a retrospective analysis of metastatic solid tumor patients who received ICI and underwent molecular profiling at our institution.
Sixty nine patients with metastatic solid tumors who received ICI were included in the study. Prevalence of smoking and secondhand tobacco exposure …
Maternal Dietary Quality, Inflammatory Potential And Childhood Adiposity: An Individual Participant Data Pooled Analysis Of Seven European Cohorts In The Alphabet Consortium, Ling-Wei Chen, Adrien M. Aubert, Nitin Shivappa, Jonathan Y. Bernard, Sara M. Mensink-Bout, Aisling A. Geraghty, John Mehegan, Matthew Suderman, Kinga Polanska, Wojciech Hanke, Agnieszka Jankowska, Caroline L. Relton, Sarah R. Crozier, Nicholas C. Harvey, Cyrus Cooper, Mark Hanson, Keith M. Godfrey, Romy Gaillard, Liesbeth Duijts, Barbara Heude, James Hébert Scd, Fionnuala M. Mcauliffe, Cecily Kelleher, Catherine M. Phillips
Maternal Dietary Quality, Inflammatory Potential And Childhood Adiposity: An Individual Participant Data Pooled Analysis Of Seven European Cohorts In The Alphabet Consortium, Ling-Wei Chen, Adrien M. Aubert, Nitin Shivappa, Jonathan Y. Bernard, Sara M. Mensink-Bout, Aisling A. Geraghty, John Mehegan, Matthew Suderman, Kinga Polanska, Wojciech Hanke, Agnieszka Jankowska, Caroline L. Relton, Sarah R. Crozier, Nicholas C. Harvey, Cyrus Cooper, Mark Hanson, Keith M. Godfrey, Romy Gaillard, Liesbeth Duijts, Barbara Heude, James Hébert Scd, Fionnuala M. Mcauliffe, Cecily Kelleher, Catherine M. Phillips
Faculty Publications
Background
Mounting evidence suggests that maternal diet influences pregnancy and birth outcomes, but its contribution to the global epidemic of childhood obesity has not as yet been definitively characterized. We investigated whether maternal whole diet quality and inflammatory potential influence childhood adiposity.
Methods
We harmonized and pooled individual participant data from 16,295 mother-child pairs in seven European birth cohorts. Maternal pre-, early-, late-, and whole-pregnancy (any time during pregnancy) dietary quality and inflammatory potential assessed with the Dietary Approaches to Stop Hypertension (DASH) score and the energy-adjusted Dietary Inflammatory Index (E-DII™) score, respectively. Primary outcome was childhood overweight and obesity …
Whole-Exome Sequencing And Hipsc Cardiomyocyte Models Identify Myrip, Trappc11, And Slc27a6 Of Potential Importance To Left Ventricular Hypertrophy In An African Ancestry Population, Marguerite R. Irvin, Praful Aggarwal, Steven A. Claas, Lisa De Las Fuentes, Anh N. Do, C. Charles Gu, Andrea Matter, Benjamin S. Olson, Amit Patki, Karen Schwander, Joshua D. Smith, Vinodh Srinivasasainagendra, Hemant K. Tiwari, Amy J. Turner, Deborah A. Nickerson, Dabeeru C. Rao, Ulrich Broeckel, Donna K. Arnett
Whole-Exome Sequencing And Hipsc Cardiomyocyte Models Identify Myrip, Trappc11, And Slc27a6 Of Potential Importance To Left Ventricular Hypertrophy In An African Ancestry Population, Marguerite R. Irvin, Praful Aggarwal, Steven A. Claas, Lisa De Las Fuentes, Anh N. Do, C. Charles Gu, Andrea Matter, Benjamin S. Olson, Amit Patki, Karen Schwander, Joshua D. Smith, Vinodh Srinivasasainagendra, Hemant K. Tiwari, Amy J. Turner, Deborah A. Nickerson, Dabeeru C. Rao, Ulrich Broeckel, Donna K. Arnett
Epidemiology and Environmental Health Faculty Publications
Background: Indices of left ventricular (LV) structure and geometry represent useful intermediate phenotypes related to LV hypertrophy (LVH), a predictor of cardiovascular (CV) disease (CVD) outcomes.
Methods and Results: We conducted an exome-wide association study of LV mass (LVM) adjusted to height2.7, LV internal diastolic dimension (LVIDD), and relative wall thickness (RWT) among 1,364 participants of African ancestry (AAs) in the Hypertension Genetic Epidemiology Network (HyperGEN). Both single-variant and gene-based sequence kernel association tests were performed to examine whether common and rare coding variants contribute to variation in echocardiographic traits in AAs. We then used a data-driven …
Dietary Quality And Dietary Inflammatory Potential During Pregnancy And Offspring Emotional And Behavioral Symptoms In Childhood: An Individual Participant Data Meta-Analysis Of Four European Cohorts, Kinga Polanska, Pawel Kaluzny, Adrien M. Aubert, Liesbeth Duijts, Hanan El Marroun, Wojciech Hanke, James R. Hébert, Barbara Heude, Agnieszka Jankowska, Giulia Mancano, Sara M. Mensink-Bout, Caroline Relton, Nitin Shivappa Mbbs, Mph, Ph.D., Matthew Suderman, Elzbieta Trafalska, Ewelina Wesolowska, Raquel Garcia-Esteban, Mònica Guxens, Maribel Casas, Catherine M. Phillips
Dietary Quality And Dietary Inflammatory Potential During Pregnancy And Offspring Emotional And Behavioral Symptoms In Childhood: An Individual Participant Data Meta-Analysis Of Four European Cohorts, Kinga Polanska, Pawel Kaluzny, Adrien M. Aubert, Liesbeth Duijts, Hanan El Marroun, Wojciech Hanke, James R. Hébert, Barbara Heude, Agnieszka Jankowska, Giulia Mancano, Sara M. Mensink-Bout, Caroline Relton, Nitin Shivappa Mbbs, Mph, Ph.D., Matthew Suderman, Elzbieta Trafalska, Ewelina Wesolowska, Raquel Garcia-Esteban, Mònica Guxens, Maribel Casas, Catherine M. Phillips
Faculty Publications
Background
The impact of maternal diet during pregnancy on child neurodevelopment is of public health and clinical relevance. We evaluated the associations of dietary quality based on the Dietary Approaches to Stop Hypertension (DASH) score and dietary inflammatory potential based on the energy-adjusted Dietary Inflammatory Index (E-DII) score during pregnancy with emotional and behavioral symptoms of offspring at 7 to 10 years of age.
Methods
Individual participant data for 11,870 mother–child pairs from four European cohorts participating in the ALPHABET project were analyzed. Maternal antenatal DASH and E-DII scores were generated from self-completed food frequency questionnaires. Symptoms of depression …
Measurement Matters: Changing Penalty Calculations Under The Hospital Acquired Condition Reduction Program (Hacrp) Cost Hospitals Millions, Olga A. Vsevolozhskaya, Karina C. Manz, Pierre M. Zephyr, Teresa M. Waters
Measurement Matters: Changing Penalty Calculations Under The Hospital Acquired Condition Reduction Program (Hacrp) Cost Hospitals Millions, Olga A. Vsevolozhskaya, Karina C. Manz, Pierre M. Zephyr, Teresa M. Waters
Biostatistics Faculty Publications
BACKGROUND: Since October 2014, the Centers for Medicare and Medicaid Services has penalized 25% of U.S. hospitals with the highest rates of hospital-acquired conditions under the Hospital Acquired Conditions Reduction Program (HACRP). While early evaluations of the HACRP program reported cumulative reductions in hospital-acquired conditions, more recent studies have not found a clear association between receipt of the HACRP penalty and hospital quality of care. We posit that some of this disconnect may be driven by frequent scoring updates. The sensitivity of the HACRP penalties to updates in the program's scoring methodology has not been independently evaluated.
METHODS: We used …
The Intersection Of Rural Residence And Minority Race/Ethnicity In Cancer Disparities In The United States, Whitney Zahnd, Cathryn Murphy, Marie Knoll, Gabriel A. Benavidez, Kelsey R. Day, Radhika Ranganathan, Parthenia Luke, Anja Zgodic, Kewei Shi, Melinda A. Merrell, Elizabeth L. Crouch, Heather M. Brandt, Jan Eberth
The Intersection Of Rural Residence And Minority Race/Ethnicity In Cancer Disparities In The United States, Whitney Zahnd, Cathryn Murphy, Marie Knoll, Gabriel A. Benavidez, Kelsey R. Day, Radhika Ranganathan, Parthenia Luke, Anja Zgodic, Kewei Shi, Melinda A. Merrell, Elizabeth L. Crouch, Heather M. Brandt, Jan Eberth
Faculty Publications
One in every twenty-five persons in America is a racial/ethnic minority who lives in a rural area. Our objective was to summarize how racism and, subsequently, the social determinants of health disproportionately affect rural racial/ethnic minority populations, provide a review of the cancer disparities experienced by rural racial/ethnic minority groups, and recommend policy, research, and intervention approaches to reduce these disparities. We found that rural Black and American Indian/Alaska Native populations experience greater poverty and lack of access to care, which expose them to greater risk of developing cancer and experiencing poorer cancer outcomes in treatment and ultimately survival. There …
A Cluster-Based Approach For Identifying Prognostic Microrna Signatures In Digestive System Cancers, Jun Zhou, Xiang Cui, Feifei Xiao, Guoshuai Cai
A Cluster-Based Approach For Identifying Prognostic Microrna Signatures In Digestive System Cancers, Jun Zhou, Xiang Cui, Feifei Xiao, Guoshuai Cai
Faculty Publications
Cancer remains the second leading cause of death all over the world. Aberrant expression of miRNA has shown diagnostic and prognostic value in many kinds of cancer. This study aims to provide a novel strategy to identify reliable miRNA signatures and develop improved cancer prognostic models from reported cancer-associated miRNAs. We proposed a new cluster-based approach to identify distinct cluster(s) of cancers and corresponding miRNAs. Further, with samples from TCGA and other independent studies, we identified prognostic markers and validated their prognostic value in prediction models. We also performed KEGG pathway analysis to investigate the functions of miRNAs associated with …
Regression Analyses Assessing The Impact Of Environmental Factors On Covid-19 Transmission And Mortality, El Hussain Shamsa, Kezhong Zhang
Regression Analyses Assessing The Impact Of Environmental Factors On Covid-19 Transmission And Mortality, El Hussain Shamsa, Kezhong Zhang
Medical Student Research Symposium
No abstract provided.
Investigating The Impacts Of Crash Prediction Models On Quantifying Safety Effectiveness Of Adaptive Signal Control Systems, Weimin Jin, Mashrur Chowdhury, Sakib Mahmud Khan, Patrick Gerard
Investigating The Impacts Of Crash Prediction Models On Quantifying Safety Effectiveness Of Adaptive Signal Control Systems, Weimin Jin, Mashrur Chowdhury, Sakib Mahmud Khan, Patrick Gerard
Publications
Introduction: Adaptive Signal Control System (ASCS) can improve both operational and safety benefits at signalized corridors. Methods: This paper develops a series of models accounting for model forms and possible predictors and implements these models in Empirical Bayes (EB) and Fully Bayesian (FB) frameworks for ASCS safety evaluation studies. Different models are validated in terms of the ability to reduce the potential bias and variance of prediction and improve the safety effectiveness estimation accuracy using real-world crash data from non-ASCS sites. This paper then develops the safety effectiveness of ASCS at six different corridors with a total of 65 signalized …
On The Burr Xii-Moment Exponential Distribution, Fiaz Ahmad Bhatti, Gholamhossein Hamedani, Mustafa Ç. Korkmaz, Menhui Sheng, Azeem Ali
On The Burr Xii-Moment Exponential Distribution, Fiaz Ahmad Bhatti, Gholamhossein Hamedani, Mustafa Ç. Korkmaz, Menhui Sheng, Azeem Ali
Mathematical and Statistical Science Faculty Research and Publications
In this study, a new flexible lifetime model called Burr XII moment exponential (BXII-ME) distribution is introduced. We derive some of its mathematical properties including the ordinary moments, conditional moments, reliability measures and characterizations. We employ different estimation methods such as the maximum likelihood, maximum product spacings, least squares, weighted least squares, Cramer-von Mises and Anderson-Darling methods for estimating the model parameters. We perform simulation studies on the basis of the graphical results to see the performance of the above estimators of the BXII-ME distribution. We verify the potentiality of the BXII-ME model via monthly actual taxes revenue and fatigue …
Visualizing Bivariate Data: What’S Your Point Of View?, Mamunur Rashid, Jyotirmoy Sarkar
Visualizing Bivariate Data: What’S Your Point Of View?, Mamunur Rashid, Jyotirmoy Sarkar
Mathematics Faculty Publications
A scatter plot shows the relationship between two continuous variables x and y. If the relationship is linear or if the two variables have a bivariate normal distribution, then the least squares regression lines of y on x and x on y can predict one variable as a linear function of the other. These two regression lines suffice to identify the mean vector, the coefficient of determination, Pearson’s product moment correlation coefficient, and the ratio of the standard deviations (SD). So does a coverage ellipse! Additionally, we answer: In which direction must the points be projected to maximize (or minimize) …
The Determinations Of Public Trust In The Government Of Egypt: An Empirical Study, Mohamed Elimam
The Determinations Of Public Trust In The Government Of Egypt: An Empirical Study, Mohamed Elimam
Theses and Dissertations
Trust is a concept that is usually studied in the context of social interactions. At varying levels, we trust our families and friends, we trust strangers who share some traits with us and even trust institutions like banks with our savings and to handle our personal finances. By expansion, political trust, or the public's trust in government as a whole and as individual agencies. Trust in government forms a basis for the legitimacy. High levels of political trust facilitates the implementation of policies with more willing compliance from the public. This is more evident in situations like global and national …
Resident Heart Rate Variability During Cataract Surgery, Ahmad Baiyasi, Shibandri Das, Ferris Bayasi, Faisal Ridha Al-Timimi
Resident Heart Rate Variability During Cataract Surgery, Ahmad Baiyasi, Shibandri Das, Ferris Bayasi, Faisal Ridha Al-Timimi
Medical Student Research Symposium
Purpose: To evaluate ophthalmology resident anxiousness and cardiovascular response by tracking resident heart rate (HR) when performing cataract surgery during their last year of residency.
Methods: A prospective analysis of 31 cataract cases, completed by three residents (two females and one male), at the Kresge Eye Institute in August and September 2020 was performed. Inclusion criteria for cases included all cataract cases performed by PGY-4 residents at the Kresge Eye Institute who downloaded the Heart Graph app supported by iOS. Residents with android mobile devices were excluded from the study. Informed consent was obtained from all residents who utilized the …
Identification And Robust Estimation Of Swapped Direct And Indirect Effects: Mediation Analysis With Unmeasured Mediator–Outcome Confounding And Intermediate Confounding, An-Shun Tai, Sheng-Hsuan Lin
Identification And Robust Estimation Of Swapped Direct And Indirect Effects: Mediation Analysis With Unmeasured Mediator–Outcome Confounding And Intermediate Confounding, An-Shun Tai, Sheng-Hsuan Lin
Harvard University Biostatistics Working Paper Series
Counterfactual-model-based mediation analysis can yield substantial insight into the causal mechanism through the assessment of natural direct effects (NDEs) and natural indirect effects (NIEs). However, the assumptions regarding unmeasured mediator–outcome confounding and intermediate mediator–outcome confounding that are required for the determination of NDEs and NIEs present practical challenges. To address this problem, we introduce an instrumental blocker, a novel quasi-instrumental variable, to relax both of these assumptions, and we define a swapped direct effect (SDE) and a swapped indirect effect (SIE) to assess the mediation. We show that the SDE and SIE are identical to the NDE and NIE, respectively, …
Optimal Two-Stage Designs Based On Restricted Mean Survival Time For A Single-Arm Study, Guogen Shan
Optimal Two-Stage Designs Based On Restricted Mean Survival Time For A Single-Arm Study, Guogen Shan
School of Public Health Faculty Research
© 2021 The Author(s) Restricted mean survival time is an alternative measure of treatment effect to hazard ratio in clinical trials with time-to-event outcome. The current methods have been focused on one-stage designs. In this article, we propose optimal two-stage designs for a single-arm study with the smallest expected sample size. We compare the performance of the new optimal two-stage designs with the existing one-stage design with regards to the expected sample size and the expected total study length. The simulation results indicate that the new two-stage designs can save the expected sample size substantially as compared to the one-stage …
Mental Health And Psychosocial Functioning In Recently Separated U.S. Women Veterans: Trajectories And Bi-Directional Relationships, Karen A. Lawrence, Dawne Vogt, Adam Dugan, Shawn R. Nigam, Emily Slade, Brian N. Smith
Mental Health And Psychosocial Functioning In Recently Separated U.S. Women Veterans: Trajectories And Bi-Directional Relationships, Karen A. Lawrence, Dawne Vogt, Adam Dugan, Shawn R. Nigam, Emily Slade, Brian N. Smith
Social Work Faculty Publications
Prior research on the relationship between veterans’ mental health and psychosocial functioning has primarily relied on male samples. Here, we investigated prospective longitudinal relationships between mental health and psychosocial functioning in 554 female Iraq and Afghanistan War veterans who were surveyed three times between two- and seven-years following separation from service. Mixed effects modeling revealed that increasing depression and posttraumatic stress disorder (PTSD) severity predicted declines in work functioning. Increasing PTSD severity predicted declining parental functioning and worsening depression predicted a decline in relationship functioning. In turn, decreased work and intimate relationship functioning predicted increased PTSD and depression symptom severity …
Photoelectron Sheath Near The Lunar Surface: Fully Kinetic Modeling And Uncertainty Quantification Analysis, Jianxun Zhao, Xinpeng Wei, Zhangli Hu, Xiaoming He, Daoru Frank Han, Zhen Hu, Xiaoping Du
Photoelectron Sheath Near The Lunar Surface: Fully Kinetic Modeling And Uncertainty Quantification Analysis, Jianxun Zhao, Xinpeng Wei, Zhangli Hu, Xiaoming He, Daoru Frank Han, Zhen Hu, Xiaoping Du
Mathematics and Statistics Faculty Research & Creative Works
This paper presents a modeling and uncertainty quantification (UQ) study of the photoelectron sheath near the lunar surface. A fully kinetic 3-D finite-difference (FD) particle-in-cell (PIC) code is utilized to simulate the plasma interaction near the lunar surface and the resulting photoelectron sheath. For the uncertainty quantification analysis, this FD-PIC code is treated as a black box providing high-fidelity quantities of interest, which are also used to construct efficient reduced-order models to perform UQ analysis. 1-D configuration is chosen to present the analytic sheath solution as well as to demonstrate the procedure and capability of the UQ analysis.
Fully-Kinetic Particle-In-Cell Simulations Of Photoelectron Sheath On Uneven Lunar Surface, Jianxun Zhao, Xinpeng Wei, Xiaoming He, Daoru Frank Han, Xiaoping Du
Fully-Kinetic Particle-In-Cell Simulations Of Photoelectron Sheath On Uneven Lunar Surface, Jianxun Zhao, Xinpeng Wei, Xiaoming He, Daoru Frank Han, Xiaoping Du
Mathematics and Statistics Faculty Research & Creative Works
This paper presents a modeling and simulation study of the photoelectron sheath near uneven lunar surface. A fully kinetic 3-D finite-difference (FD) particle-in-cell (PIC) code is utilized to simulate the plasma interaction with local uneven surface terrain on the lunar surface in 2-D photoelectron sheaths. The code is first validated using a 1-D plasma charging and sheath problem by comparing with a semi-analytic solution. Good agreement is obtained. The 2-D FD-PIC simulations present the distributions of electric potential and charged species densities near the uneven lunar surface. It shows that the surface potential is highly influenced by the exposure to …
Neighborhood Characteristics And The Mental Health Of Caregivers Cohabiting With Care Recipients Diagnosed With Alzheimer’S Disease, Dana M. Alhasan, Jana A. Hirsch, Chandra L. Jackson, Margaret Chandlee Miller, Bo Cai Ph.D., Matthew C. Lohman Ph.D.
Neighborhood Characteristics And The Mental Health Of Caregivers Cohabiting With Care Recipients Diagnosed With Alzheimer’S Disease, Dana M. Alhasan, Jana A. Hirsch, Chandra L. Jackson, Margaret Chandlee Miller, Bo Cai Ph.D., Matthew C. Lohman Ph.D.
Faculty Publications
While studies have documented the influence of caregiver and care recipient factors on caregiver health, it is important to address the potential impact of neighborhood contexts. This study estimated the cross-sectional associations between neighborhood characteristics and mental health among caregivers cohabiting with Alzheimer’s disease care recipients that were experiencing severe or non-severe neuropsychiatric symptoms (NPSs) (e.g., aggression/anxiety). We obtained data collected in 2010 on caregivers and care recipients (n
While studies have documented the influence of caregiver and care recipient factors on caregiver health, it is important to address the potential impact of neighborhood contexts. This study estimated the cross-sectional …
Introduction To Statistics In The Psychological Sciences, Linda R. Cote, Rupa Gordon, Chrislyn E. Randell, Judy Schmitt, Helena Marvin
Introduction To Statistics In The Psychological Sciences, Linda R. Cote, Rupa Gordon, Chrislyn E. Randell, Judy Schmitt, Helena Marvin
Open Educational Resources Collection
Introduction to Statistics in the Psychological Sciences provides an accessible introduction to the fundamentals of statistics, and hypothesis testing as need for psychology students. The textbook introduces the fundamentals of statistics, an introduction to hypothesis testing, and t Tests. Related samples, independent samples, analysis of variance, correlations, linear regressions and chi-squares are all covered along with expanded appendices with z, t, F correlation, and a Chi-Square table. The text includes key terms and exercises with answers to odd-numbered exercises.
Psychology students often find statistics courses to be different from their other psychology classes. There are some distinct differences, especially involving …
Impact Of Patient Load On The Quality Of Electronic Medical Record Documentation, Aasems Jacob, Rishi Raj, Sayee Alagusundaramoorthy, Jing Wei, Jianrong Wu, Margaret Eng
Impact Of Patient Load On The Quality Of Electronic Medical Record Documentation, Aasems Jacob, Rishi Raj, Sayee Alagusundaramoorthy, Jing Wei, Jianrong Wu, Margaret Eng
Internal Medicine Faculty Publications
Objective:
American College of Graduate Medical Education (ACGME) recommends ongoing care of 10 patients per resident however its implication is unclear. We hypothesized EMR quality to vary based on patient load and call status.
Methods:
We conducted a double-blind, single-center, retrospective observational study between 2017 and 2019 to investigate the quality and accuracy of resident documentation using the Responsible Electronic Documentation (RED) Checklist, a validated scoring system.
Results:
A total of 234 independent charts were analyzed and 80 met scoring criteria. Average patients per residents was 4, 9.1, 7.2, and 5.5 on “call” day (D0), “post-call” day (D1), “mid-call” day …
Memory-Related Frontal Brainwaves Predict Transition To Mild Cognitive Impairment In Healthy Older Individuals Five Years Before Diagnosis, Yang Jiang, Juan Li, Frederick A. Schmitt, Gregory A. Jicha, Nancy B. Munro, Xiaopeng Zhao, Charles D. Smith, Richard J. Kryscio, Erin L. Abner
Memory-Related Frontal Brainwaves Predict Transition To Mild Cognitive Impairment In Healthy Older Individuals Five Years Before Diagnosis, Yang Jiang, Juan Li, Frederick A. Schmitt, Gregory A. Jicha, Nancy B. Munro, Xiaopeng Zhao, Charles D. Smith, Richard J. Kryscio, Erin L. Abner
Behavioral Science Faculty Publications
BACKGROUND: Early prognosis of high-risk older adults for amnestic mild cognitive impairment (aMCI), using noninvasive and sensitive neuromarkers, is key for early prevention of Alzheimer's disease. We have developed individualized measures in electrophysiological brain signals during working memory that distinguish patients with aMCI from age-matched cognitively intact older individuals.
OBJECTIVE: Here we test longitudinally the prognosis of the baseline neuromarkers for aMCI risk. We hypothesized that the older individuals diagnosed with incident aMCI already have aMCI-like brain signatures years before diagnosis.
METHODS: Electroencephalogram (EEG) and memory performance were recorded during a working memory task at baseline. The individualized baseline neuromarkers, …