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Articles 2131 - 2160 of 14905
Full-Text Articles in Entire DC Network
Biometrics And An Ai Bill Of Rights, Margaret Hu
Biometrics And An Ai Bill Of Rights, Margaret Hu
Faculty Publications
This Article contends that an informed discussion on an AI Bill of Rights requires grappling with biometric data collection and its integration into emerging AI systems. Biometric AI systems serve a wide range of governmental purposes, including policing, border security and immigration enforcement, and biometric cyberintelligence and biometric-enabled warfare. These systems are increasingly categorized as "high-risk" when deployed in ways that may impact fundamental constitutional rights and human rights. There is growing recognition that high-risk biometric AI systems, such as facial recognition identification, can pose unprecedented challenges to criminal procedure rights. This Article concludes that a failure to recognize these …
Ethnic Discrimination And Alcohol-Related Problem Severity Among Hispanic/Latin Drinkers: The Role Of Social Anxiety In The Minority Stress Model, Julia D. Buckner, Elizabeth M. Lewis, Justin M. Shepherd, Michael J. Zvolensky
Ethnic Discrimination And Alcohol-Related Problem Severity Among Hispanic/Latin Drinkers: The Role Of Social Anxiety In The Minority Stress Model, Julia D. Buckner, Elizabeth M. Lewis, Justin M. Shepherd, Michael J. Zvolensky
Faculty Publications
Introduction: Hispanic/Latin individuals in the U.S. experience many health disparities, including worse alcohol-related outcomes. Thus, identifying psycho-sociocultural factors that may play a role in alcohol-related problems among these individuals is vital to informing prevention and treatment efforts. Minority stress-based models of alcohol misuse posit that some Hispanic/Latin individuals may drink (and continue to drink despite drinking-related problems) to alleviate negative affect associated with experiencing ethnic discrimination. Yet, little research has directly tested this hypothesis. Given the social nature of both ethnic discrimination and drinking, it follows that experiencing more ethnic discrimination could be related to greater social anxiety and some …
Planetary-Scale Change To The Biosphere Signalled By Global Species Translocations Can Be Used To Identify The Anthropocene, Mark Williams, Reinhold Leinfelder, Anthony D. Barnosky, Martin J. Head, Francine M.G. Mccarthy, Alejandro Cearreta, Stephen Himson, Rachael Holmes, Colin N. Waters, Jan Zalasiewicz, Simon Turner, Mary Mcgann, Elizabeth A. Hadly, M. Allison Stegner, Paul Michael Pilkington, Jérôme Kaiser, Juan Carlos Berrio, Ian P. Wilkinson, Jens Zinke, Kristine L. Delong
Planetary-Scale Change To The Biosphere Signalled By Global Species Translocations Can Be Used To Identify The Anthropocene, Mark Williams, Reinhold Leinfelder, Anthony D. Barnosky, Martin J. Head, Francine M.G. Mccarthy, Alejandro Cearreta, Stephen Himson, Rachael Holmes, Colin N. Waters, Jan Zalasiewicz, Simon Turner, Mary Mcgann, Elizabeth A. Hadly, M. Allison Stegner, Paul Michael Pilkington, Jérôme Kaiser, Juan Carlos Berrio, Ian P. Wilkinson, Jens Zinke, Kristine L. Delong
Faculty Publications
We examine three distinctive biostratigraphic signatures of humans associated with hunting and gathering, landscape domestication and globalization. All three signatures have significant fossil records of regional importance that can be correlated inter-regionally and help describe the developing pattern of human expansion and appropriation of resources. While none have individual first or last appearances that provide a globally isochronous marker, all three signatures overlap stratigraphically, in that they are part of a continuum of change, with complex regional patterns. Here we show that during the later stages of globalization, late nineteenth to twentieth century records of species translocations can be used …
The Role Of Motivation Into The Conceptual Model Of Motor Development In Childhood, Cristina Menescardi, An V. De Meester, Sofie Morbée, Leen Haerens, Isaac Estevan
The Role Of Motivation Into The Conceptual Model Of Motor Development In Childhood, Cristina Menescardi, An V. De Meester, Sofie Morbée, Leen Haerens, Isaac Estevan
Faculty Publications
The aim of this study was twofold: first, to investigate whether perceived motor competence (PMC) mediates the relation between actual motor competence (AMC) and physical activity (PA) according to the conceptual model of motor development, and second to examine the role of different motivational regulations (i.e., intrinsic, identified, introjected, and external regulation) in the relationship between PMC and PA. A sample of 504 Spanish students (46.2% girls, 8–12 years old) voluntarily participated in this study. In relation to the first aim, structural equation modeling revealed that PMC indeed mediates the association between AMC and PA. In relation to the second …
The Role Of Motivation In The Conceptual Model Of Motor Development In Childhood, Cristina Menescardi, An V. De Meester, Sofie Morbee, Leen Haerens, Isaac Estevan
The Role Of Motivation In The Conceptual Model Of Motor Development In Childhood, Cristina Menescardi, An V. De Meester, Sofie Morbee, Leen Haerens, Isaac Estevan
Faculty Publications
The aim of this study was twofold: first, to investigate whether perceived motor competence (PMC) mediates the relation between actual motor competence (AMC) and physical activity (PA) according to the conceptual model of motor development, and second to examine the role of different motivational regulations (i.e., intrinsic, identified, introjected, and external regulation) in the relationship between PMC and PA. A sample of 504 Spanish students (46.2% girls, 8–12 years old) voluntarily participated in this study. In relation to the first aim, structural equation modeling revealed that PMC indeed mediates the association between AMC and PA. In relation to the second …
An Ontology For Cardiothoracic Surgical Education And Clinical Data Analytics, Maryam Panahiazar, Yorick Chern, Ramon Riojas, Omar S.Latif, Usha Lokala, Dexter Hadley, Amit Sheth, Ramin E.Beygui
An Ontology For Cardiothoracic Surgical Education And Clinical Data Analytics, Maryam Panahiazar, Yorick Chern, Ramon Riojas, Omar S.Latif, Usha Lokala, Dexter Hadley, Amit Sheth, Ramin E.Beygui
Faculty Publications
The development of an ontology facilitates the organization of the variety of concepts used to describe different terms in different resources. The proposed ontology will facilitate the study of cardiothoracic surgical education and data analytics in electronic medical records (EMR) with the standard vocabulary.
Differences In Aggression And Alcohol Use Among Youth With Varying Levels Of Victimization And Popularity Status, Sarah T. Malamut, Molly Dawes, Tessa A.M. Lansu, Yvonne Van Den Berg, Antonius H.N. Cillessen
Differences In Aggression And Alcohol Use Among Youth With Varying Levels Of Victimization And Popularity Status, Sarah T. Malamut, Molly Dawes, Tessa A.M. Lansu, Yvonne Van Den Berg, Antonius H.N. Cillessen
Faculty Publications
Awareness that high-status adolescents can be targets of aggression has grown in recent years. However, questions remain about the associations of the confluence of victimization and popularity with adjustment. The current study fills this gap by examining the joint and unique effects of victimization and popularity on aggression and alcohol use. Participants were 804 Dutch adolescents (50.2% boys, Mage = 13.65) who were followed for one year. High-status victims were more aggressive and drank more alcohol than lower-status victims. High-status victims were also more proactively and indirectly aggressive and self-reported more bullying than high-status non-victims. Thus, the findings demonstrated …
Influence Of Guideline Operationalization On Youth Activity Prevalence In The International Children’S Accelerometry Database, Catherine Gammon, Andrew J. Atkin, Kirsten Corder, Ulf Ekelund, Bjorge Herman Hansen, Lauren B. Sherar, Lars Bo Anderson, Sigmund Anderssen, Rachel Davey, Pedro C. Hallal, Russell Jago, Susi Kriemler, Peter Lund Kristensen, Soyang Kwon, Kate Nothstone, Russell R. Pate Ph.D., J. O. Salmon, Luis B. Sardinha, Esther M.F. Sluijs
Influence Of Guideline Operationalization On Youth Activity Prevalence In The International Children’S Accelerometry Database, Catherine Gammon, Andrew J. Atkin, Kirsten Corder, Ulf Ekelund, Bjorge Herman Hansen, Lauren B. Sherar, Lars Bo Anderson, Sigmund Anderssen, Rachel Davey, Pedro C. Hallal, Russell Jago, Susi Kriemler, Peter Lund Kristensen, Soyang Kwon, Kate Nothstone, Russell R. Pate Ph.D., J. O. Salmon, Luis B. Sardinha, Esther M.F. Sluijs
Faculty Publications
Introduction
The United Kingdom and World Health Organization recently changed their youth physical activity (PA) guidelines from 60 min of moderate- to vigorous-intensity PA (MVPA) every day, to an average of 60 min of MVPA per day, over a week. The changes are based on expert opinion due to insufficient evidence comparing health outcomes associated with different guideline definitions. This study used the International Children’s Accelerometry Database to compare approaches to calculating youth PA compliance and associations with health indicators.
Methods
Cross-sectional accelerometer data (n = 21,612, 5–18 yr) were used to examine compliance with four guideline definitions: daily …
Perspectives Of African American Women About Barriers To Breast Cancer Prevention And Screening Practices: A Qualitative Study, Abosede F. Obikunle, Jochebed Bosede Ade-Oshifogun
Perspectives Of African American Women About Barriers To Breast Cancer Prevention And Screening Practices: A Qualitative Study, Abosede F. Obikunle, Jochebed Bosede Ade-Oshifogun
Faculty Publications
Breast cancer is a severe illness that often has fatal consequences. Adherence to the recommendations for breast cancer surveillance is poorly practiced among African American women. The study aimed to identify barriers to preventative screening for breast cancer among African American women (AAW) using a qualitative research design. We explored the influence of personal barriers, stereotypes, socioeconomic status, culture, attitudes, and beliefs on African American women's behavior regarding breast cancer screening. Fourteen African American women were interviewed. Data analysis was completed with Interpretative Phenomenology Approach (IPA). This study's findings demonstrated that African American women perceived the barriers to breast cancer …
Correlates Of Zero-Dose Vaccination Status Among Children Aged 12–59 Months In Sub-Saharan Africa: A Multilevel Analysis Of Individual And Contextual Factors, Chamberline E. Ozigbu, Bankole Olatosi Ph.D., Zhenlong Li, James W. Hardin, Nicole L. Hair
Correlates Of Zero-Dose Vaccination Status Among Children Aged 12–59 Months In Sub-Saharan Africa: A Multilevel Analysis Of Individual And Contextual Factors, Chamberline E. Ozigbu, Bankole Olatosi Ph.D., Zhenlong Li, James W. Hardin, Nicole L. Hair
Faculty Publications
Despite ongoing efforts to improve childhood vaccination coverage, including in hard-to-reach and hard-to-vaccinate communities, many children in sub-Saharan Africa (SSA) remain unvaccinated. Considering recent goals set by the Immunization Agenda 2030 (IA2030), including reducing the number of zero-dose children by half, research that goes beyond coverage to identify populations and groups at greater risk of being unvaccinated is urgently needed. This is a pooled cross-sectional study of individual- and country-level data obtained from Demographic and Health Surveys Program and two open data repositories. The sample includes 43,131 children aged 12–59 months sampled between 2010 and 2020 in 33 SSA countries. …
Correlates Of Zero-Dose Vaccination Status Among Children Aged 12-59 Months In Sub-Saharan Africa: A Multilevel Analysis Of Individual And Contextual Factors, Chamberline Ozigbu, Bankole Olatosi, Zhenlong Li, James W. Hardin, Nicole L. Hair
Correlates Of Zero-Dose Vaccination Status Among Children Aged 12-59 Months In Sub-Saharan Africa: A Multilevel Analysis Of Individual And Contextual Factors, Chamberline Ozigbu, Bankole Olatosi, Zhenlong Li, James W. Hardin, Nicole L. Hair
Faculty Publications
Despite ongoing efforts to improve childhood vaccination coverage, including in hard-to-reach and hard-to-vaccinate communities, many children in sub-Saharan Africa (SSA) remain unvaccinated. Considering recent goals set by the Immunization Agenda 2030 (IA2030), including reducing the number of zero-dose children by half, research that goes beyond coverage to identify populations and groups at greater risk of being unvaccinated is urgently needed. This is a pooled cross-sectional study of individual- and country-level data obtained from Demographic and Health Surveys Program and two open data repositories. The sample includes 43,131 children aged 12–59 months sampled between 2010 and 2020 in 33 SSA countries. …
“Where The Truth Really Lies”: Listening To Voices From African American Communities In The Southern States About Covid-19 Vaccine Information And Communication, Ran Zhang, Shan Qiao, Brooke Mckeever, Bankole Olatosi, Xiaoming Li
“Where The Truth Really Lies”: Listening To Voices From African American Communities In The Southern States About Covid-19 Vaccine Information And Communication, Ran Zhang, Shan Qiao, Brooke Mckeever, Bankole Olatosi, Xiaoming Li
Faculty Publications
The high uptake of COVID-19 vaccines is one of the most promising measures to control the pandemic. However, some African American (AA) communities exhibit vaccination hesitancy due to mis- or disinformation. It is important to understand the challenges in accessing reliable COVID-19 vaccine information and to develop feasible health communication interventions based on voices from AA communities. We conducted 2 focus group discussions (FGDs) among 18 community stakeholders recruited from 3 counties in South Carolina on 8 October and 29 October 2021. The FGDs were conducted online via Zoom meetings. The FGD data were managed and thematically analyzed using NVivo …
Listening To Voices From African American Communities In The Southern States About Covid-19 Vaccine Information And Communication: A Qualitative Study, Ran Zhang, Shan Qiao, Bankole Olatosi Ph.D., Xiaoming Li Ph.D.
Listening To Voices From African American Communities In The Southern States About Covid-19 Vaccine Information And Communication: A Qualitative Study, Ran Zhang, Shan Qiao, Bankole Olatosi Ph.D., Xiaoming Li Ph.D.
Faculty Publications
The high uptake of COVID-19 vaccines is one of the most promising measures to control the pandemic. However, some African American (AA) communities exhibit vaccination hesitancy due to mis- or disinformation. It is important to understand the challenges in accessing reliable COVID-19 vaccine information and to develop feasible health communication interventions based on voices from AA communities. We conducted 2 focus group discussions (FGDs) among 18 community stakeholders recruited from 3 counties in South Carolina on 8 October and 29 October 2021. The FGDs were conducted online via Zoom meetings. The FGD data were managed and thematically analyzed using NVivo …
Eeg Evidence Of Altered Functional Connectivity And Microstate In Children Orphaned By Hiv/Aids, Huang Gu, Xueke Shan, Hui He, Junfeng Zhao, Xiaoming Li Ph.D.
Eeg Evidence Of Altered Functional Connectivity And Microstate In Children Orphaned By Hiv/Aids, Huang Gu, Xueke Shan, Hui He, Junfeng Zhao, Xiaoming Li Ph.D.
Faculty Publications
Children orphaned by HIV/AIDS (“AIDS orphans”) suffer numerous early-life adverse events which have a long-lasting effect on brain function. Although previous studies found altered electroencephalography (EEG) oscillation during resting state in children orphaned by HIV/AIDS, data are limited regarding the alterations in connectivity and microstate. The current study aimed to investigate the functional connectivity (FC) and microstate in children orphaned by HIV/AIDS with resting-state EEG data. Data were recorded from 63 children orphaned by HIV/AIDS and 65 non-orphan controls during a close-eyes resting state. The differences in phase-locking value (PLV) of global average FC and temporal dynamics of microstate were …
Allure: A Multi-Modal Guided Environment For Helping Children Learn To Solve A Rubik's Cube With Automatic Solving And Interactive Explanations, Kausik Lakkaraju, Thahimum Hassan, Vedant Khandelwal, Prathamjeet Singh, Cassidy Bradley, Ronak Shah, Forest Agostinelli, Biplav Srivastava, Dezhi Wu
Allure: A Multi-Modal Guided Environment For Helping Children Learn To Solve A Rubik's Cube With Automatic Solving And Interactive Explanations, Kausik Lakkaraju, Thahimum Hassan, Vedant Khandelwal, Prathamjeet Singh, Cassidy Bradley, Ronak Shah, Forest Agostinelli, Biplav Srivastava, Dezhi Wu
Faculty Publications
Modern artificial intelligence (AI) methods have been used to solve problems that many humans struggle to solve. This opens up new opportunities for knowledge discovery and education. We demonstrate ALLURE, a collaborative educational AI system for learning to solve the Rubik's cube that is designed to help students improve their problem solving skills. ALLURE can both find its own strategies for solving the Rubik's cube and explain those strategies to humans. In the future, ALLURE will also be able to collaborate with humans by building on user-provided strategies for solving the Rubik's cube and as well as generalize to other …
Association Between The Dietary Inflammatory Index And Gastric Disease Risk: Findings From A Korean Population-Based Cohort Study, Sundara Raj Sreeja, Trong-Dat Le, Bang Wool Eom, Seung Hyun Oh, Nitin Shivappa Mbbs, Mph, Ph.D., James R. Hébert Scd, Mi Kyung Kim
Association Between The Dietary Inflammatory Index And Gastric Disease Risk: Findings From A Korean Population-Based Cohort Study, Sundara Raj Sreeja, Trong-Dat Le, Bang Wool Eom, Seung Hyun Oh, Nitin Shivappa Mbbs, Mph, Ph.D., James R. Hébert Scd, Mi Kyung Kim
Faculty Publications
Evidence suggests that diets with high pro-inflammatory potential may play a substantial role in the origin of gastric inflammation. This study aimed to examine the association between the energy-adjusted dietary inflammatory index (E-DIITM) and gastric diseases at baseline and after a mean follow-up of 7.4 years in a Korean population. A total of 144,196 participants from the Korean Genome and Epidemiology Study_Health Examination (KoGES_HEXA) cohort were included. E-DII scores were computed using a validated semi-quantitative food frequency questionnaire. Multivariate logistic regression and Cox proportional hazards regression were used to assess the association between the E-DII and gastric disease risk. In …
Household Food Insecurity Is Associated With Diabetic Ketoacidosis But Not Severe Hypoglycemia Or Glycemic Control In Youth And Young Adults With Youth‐Onset Type 2 Diabetes, Lauren A. Reid, Jason A. Mendoza, Anwar T. Nerchant, Marco Geraci, Beth A. Reboussin, Faisal S. Malik, Alice M. Ellyson, Dana Dabelea, Lina Merjaneh, Santica M. Marcovina, Eva Lustigova, Jean .. Lawrence, Angela D. Liese Ph.D.
Household Food Insecurity Is Associated With Diabetic Ketoacidosis But Not Severe Hypoglycemia Or Glycemic Control In Youth And Young Adults With Youth‐Onset Type 2 Diabetes, Lauren A. Reid, Jason A. Mendoza, Anwar T. Nerchant, Marco Geraci, Beth A. Reboussin, Faisal S. Malik, Alice M. Ellyson, Dana Dabelea, Lina Merjaneh, Santica M. Marcovina, Eva Lustigova, Jean .. Lawrence, Angela D. Liese Ph.D.
Faculty Publications
Objective: To examine the association between household food insecurity (HFI), glycemic control, severe hypoglycemia and diabetic ketoacidosis (DKA) among youth and young adults (YYA) with youth-onset type 2 diabetes.
Research design and methods: This cross-sectional study included 395 YYA with type 2 diabetes from the SEARCH for Diabetes in Youth Study (2015–2019). HFI was reported by young adult participants or parents of minor participants via the US Household Food Security Survey Module. Glycemic control was assessed by HbA1c and analyzed as a continuous and categorical variable (optimal:9.0%). Acute complications included self-reported severe hypoglycemia or DKA in the last 12 months. …
Enhanced Force Field Analysis (E-Ffa) Templates, Alisha Redelfs, Leah D. Whigham
Enhanced Force Field Analysis (E-Ffa) Templates, Alisha Redelfs, Leah D. Whigham
Faculty Publications
Evaluation is an essential component of public health practice to understand the reach and impact of a program or the functioning of a system. We propose that Enhanced Force Field Analysis (E-FFA), incorporating strategic planning (force field analysis), participatory approaches, and elements of Appreciative Inquiry, is a powerful and versatile tool for evaluators, program developers, and community organizations to optimize programs, understand systems, or assess innovations. E-FFA can work with large or small groups and is flexible enough to work in many contexts.
These E-FFA printable templates include a facilitator's guide, a participant handout (2 per sheet), and scorecards (8 …
Inhibitory Control Of Emotional Interference In Deaf Children: Evidence From Event-Related Potentials And Event-Related Spectral Perturbation Analysis, Qiong Chen, Junfeng Zhao, Huang Gu, Xiaoming Li Ph.D.
Inhibitory Control Of Emotional Interference In Deaf Children: Evidence From Event-Related Potentials And Event-Related Spectral Perturbation Analysis, Qiong Chen, Junfeng Zhao, Huang Gu, Xiaoming Li Ph.D.
Faculty Publications
Background: Impairment of interference control ability may reflect a more general deficit in executive functioning, and lead to an increase in internal-externalized problems such as impulsivity, which has been reported in deaf children. However, few researches have examined the neural mechanism of this impairment.
Methods: This study applied the electroencephalogram (EEG) technique to investigate the interference control ability in 31 deaf children and 28 hearing controls with emotional face-word stroop task.
Results: Results from behavioral task showed that deaf children exhibited lower accuracy compared to hearing controls. As for EEG analysis, reduced activation of ERP components in N1 and enhanced …
Using Student Researchers To Assess The Digital Collections User Experience, Rebecca A. Wiederhold, Lindsey Memory, Jonathan Jarvis, Greg Seppi, Madeleine Meldrum, Hannah Bozue
Using Student Researchers To Assess The Digital Collections User Experience, Rebecca A. Wiederhold, Lindsey Memory, Jonathan Jarvis, Greg Seppi, Madeleine Meldrum, Hannah Bozue
Faculty Publications
Following the closure of the Harold B. Lee Library’s special collections during the pandemic, the presenters designed a study to assess the usability of our CONTENTdm system. The library collaborated with a sociology professor to have students from his qualitative research methods class administer the study, observing other undergraduates using the system to perform tasks, and interviewing them about their experiences. In this presentation, the librarians, the sociology professor, and two students will share lessons learned from this experience, including small disappointments and unexpected benefits. We’ll also share the study methodology and suggestions for optimizing this type of professional collaboration …
Does Hiv-Related Stigma Depress Social Well-Being Of Youths Affected By Parental Hiv/Aids?, Yafei Zhao, Jiaojiao Wan, Lili Ji, Giagai Lui, Yixin Shi, Junfeng Zhao, Xiaoming Li Ph.D.
Does Hiv-Related Stigma Depress Social Well-Being Of Youths Affected By Parental Hiv/Aids?, Yafei Zhao, Jiaojiao Wan, Lili Ji, Giagai Lui, Yixin Shi, Junfeng Zhao, Xiaoming Li Ph.D.
Faculty Publications
Parental illness or death due to HIV/AIDS has long-term impacts on children’s social well-being, potentially challenging the children’s basic developmental needs and future. Based on the theoretical model of social well-being, the present study tested a moderated mediation model that HIV-related stigma moderated the mediating role of social trust on the relationship between perceived social support (PSS) and social well-being. A sample of 297 youths aged 20–30 years affected by parental HIV/AIDS (57.2% male), including 129 (43.40%) AIDS orphans and 168 vulnerable youths (56.60%) completed questionnaires of perceived social support, social well-being, social trust, and HIV-related stigma. IBM SPSS 25.0 …
Adolescent Health Risk Behaviors, Adverse Experiences, And Self-Reported Hunger: Analysis Of 10 States From The 2019 Youth Risk Behavior Surveys, Kathryn L. Krupsky, Sarah Silwa, Hilary Seligman, Andrea D. Brown, Angela D. Liese Ph.D., Zewditu Demissie, Ellen Barnidge
Adolescent Health Risk Behaviors, Adverse Experiences, And Self-Reported Hunger: Analysis Of 10 States From The 2019 Youth Risk Behavior Surveys, Kathryn L. Krupsky, Sarah Silwa, Hilary Seligman, Andrea D. Brown, Angela D. Liese Ph.D., Zewditu Demissie, Ellen Barnidge
Faculty Publications
We examined associations between adolescent self-reported hunger, health risk behaviors, and adverse experiences during the 2018–2019 school year. Youth Risk Behavior Survey data were pooled from 10 states. Prevalence ratios were calculated, and we assessed effect measure modification by sex. The prevalence of self-reported hunger was 13%. Self-reported hunger was associated with a higher prevalence of every health risk behavior/adverse experience analyzed, even after adjusting for sex, grade, and race/ethnicity. Sex did not modify associations. Findings underscore needs for longitudinal research with more robust measures of adolescent food insecurity to clarify the temporality of relationships.
Racial And Ethnic Disparities In Postpartum Care In The Greater Boston Area During The Covid-19 Pandemic, Tianyue Mi, Peiyin Hung, Xiaoming Li Ph.D., Alecia Mcgregor, Jinggui He, Jie Zhou
Racial And Ethnic Disparities In Postpartum Care In The Greater Boston Area During The Covid-19 Pandemic, Tianyue Mi, Peiyin Hung, Xiaoming Li Ph.D., Alecia Mcgregor, Jinggui He, Jie Zhou
Faculty Publications
IMPORTANCE Racial and ethnic disparities in postpartum care access have been well identified in the United States. Such disparities could be exacerbated by the COVID-19 pandemic because of amplified economic distress and compromised social capital among pregnant women who belong to racial or ethnic minority groups.
OBJECTIVE To examine whether the COVID-19 pandemic is associated with an increase in the existing racial and ethnic disparity in postpartum care access.
DESIGN, SETTING, AND PARTICIPANTS This was a retrospective cohort study using electronic health records data. Multinomial logistic regressions in an interrupted time series approach were used to assess monthly changes in …
Search For Multimessenger Signals In Nova Coincident With Ligo/Virgo Detections, M. A. Acero, P. Adamson, L. Aliaga, T. Alion, V. Alakhberdian, N. Anfimov, A. Antoshkin, L. Asquith, A. Aurisano, A. Back, C. Backhouse, M. Biard, N. Balashov, P. Baldi, B. A. Bambah, S. Bashar, K. Bays, S. Bending, R. Bernstein, V. Bhatnagar, Roberto Petti, Et. Al.
Search For Multimessenger Signals In Nova Coincident With Ligo/Virgo Detections, M. A. Acero, P. Adamson, L. Aliaga, T. Alion, V. Alakhberdian, N. Anfimov, A. Antoshkin, L. Asquith, A. Aurisano, A. Back, C. Backhouse, M. Biard, N. Balashov, P. Baldi, B. A. Bambah, S. Bashar, K. Bays, S. Bending, R. Bernstein, V. Bhatnagar, Roberto Petti, Et. Al.
Faculty Publications
Using the NOvA neutrino detectors, a broad search has been performed for any signal coincident with 28 gravitational wave events detected by the LIGO/Virgo Collaboration between September 2015 and July 2019. For all of these events, NOvA is sensitive to possible arrival of neutrinos and cosmic rays of GeV and higher energies. For five (seven) events in the NOvA Far (Near) Detector, timely public alerts from the LIGO/Virgo Collaboration allowed recording of MeV-scale events. No signal candidates were found.
Event-Related Brain Potential Correlates Of Event-Based Prospective Memory In Children With Learning Disability, Lili Jing, Qi Zhao, Yafei Zhang, Jiaojiao Wan, Xiaoming Li Ph.D.
Event-Related Brain Potential Correlates Of Event-Based Prospective Memory In Children With Learning Disability, Lili Jing, Qi Zhao, Yafei Zhang, Jiaojiao Wan, Xiaoming Li Ph.D.
Faculty Publications
Prospective memory (PM) has been reported to be impaired in children with learning disabilities (LD), but few studies have examined the underlying neural mechanism of this impairment. To address this issue, the present study applied ERP technique to explore the difference of event-based prospective memory (EBPM) in 21 children with LD and 20 non-LD children with double task paradigm. Results from behavioral data showed that LD children exhibited lower accuracy than non-LD children. The ERP results showed that the two groups displayed significant difference in the ERP components, with longer N300 latency in LD group, but there was no obvious …
Illustrative Application Of The Nth-Order Comprehensive Adjoint Sensitivity Analysis Methodology For Nonlinear Systems To The Nordheim–Fuchs Reactor Dynamics/Safety Model, Dan Gabriel Cacuci
Illustrative Application Of The Nth-Order Comprehensive Adjoint Sensitivity Analysis Methodology For Nonlinear Systems To The Nordheim–Fuchs Reactor Dynamics/Safety Model, Dan Gabriel Cacuci
Faculty Publications
The application of the recently developed “nth-order comprehensive sensitivity analysis methodology for nonlinear systems” (abbreviated as “nth-CASAM-N”) has been previously illustrated on paradigm nonlinear space-dependent problems. To complement these illustrative applications, this work illustrates the application of the nth-CASAM-N to a paradigm nonlinear time-dependent model chosen from the field of reactor dynamics/safety, namely the well-known Nordheim–Fuchs model. This phenomenological model describes a short-time self-limiting power transient in a nuclear reactor system having a negative temperature coefficient in which a large amount of reactivity is suddenly inserted, either intentionally or by accident. This model is sufficiently complex to demonstrate all the …
The NTh-Order Comprehensive Adjoint Sensitivity Analysis Methodology For Nonlinear Systems (Nth-Casam-N): Mathematical Framework, Dan Gabriel Cacuci
The NTh-Order Comprehensive Adjoint Sensitivity Analysis Methodology For Nonlinear Systems (Nth-Casam-N): Mathematical Framework, Dan Gabriel Cacuci
Faculty Publications
This work presents the nth-Order Comprehensive Adjoint Sensitivity Analysis Methodology for Nonlinear Systems (nth-CASAM-N), which enables the most efficient computation of exactly determined expressions of arbitrarily high-order sensitivities of generic nonlinear system responses with respect to model parameters, uncertain boundaries, and internal interfaces in the model’s phase space. The mathematical framework underlying the nth-CASAM-N is proven to be correct by using mathematical induction. The nth-CASAM-N is formulated in linearly increasing higher-dimensional Hilbert spaces—as opposed to exponentially increasing parameter-dimensional spaces—thus overcoming the curse of dimensionality in sensitivity analysis of nonlinear systems.
No Formation During Co-Combustion Of Coal With Two Thermally Treated Biomasses, Thomas Allgurén, Klas Andersson, Andrew R. Fry, Eric G. Eddings
No Formation During Co-Combustion Of Coal With Two Thermally Treated Biomasses, Thomas Allgurén, Klas Andersson, Andrew R. Fry, Eric G. Eddings
Faculty Publications
The combustion behavior of biomass as a fuel varies dependent on source of the raw material, but also on the type of pre-treatment. In this work steam exploded and torrefied woody biomass were studied with respect to NOx formation in co-firing experiments. Most of the reported data is based on small scale experiments and simulations. In this work, however, have three different cases been investigated experimentally in a 1.5MWth combustor supported by reaction simulations. One case corresponds to firing 100% Utah bituminous coal and two cases where 15% of the coal (on a mass basis) has been replaced with either …
Readymades & Repertoires: Artifact-Mediated Improvisation In Tabletop Role-Playing Games, Philip Tchernavskij, Andrew M. Webb, Hayden Gemeinhardt, Wendy E. Mackay
Readymades & Repertoires: Artifact-Mediated Improvisation In Tabletop Role-Playing Games, Philip Tchernavskij, Andrew M. Webb, Hayden Gemeinhardt, Wendy E. Mackay
Faculty Publications
Game masters (GMs) are creative practitioners who plan and orchestrate tabletop role-playing games. Through an interview study, we investigate how eight expert game masters adapt everyday technologies and materials as creativity support tools (CSTs) for improvisational and collaborative play. We integrate theories of improvisational and distributed creativity with the human-artifact model, which provides an activity-theoretical vocabulary for analyzing the mediating relationships between specialist practitioners and their tools. We show how GMs prepare and deploy readymade artifacts: analog and digital CSTs that flexibly mediate recurring creative tasks in their practice, such as improvising narrative elements, facilitating smooth play, and creating aesthetic …
Ocean-Atmosphere Variability In The Northwest Atlantic Ocean During Active Marine Heatwave Years, Lydia D. Sims, Bulusu Subrahmanyam, Corinne B. Trott
Ocean-Atmosphere Variability In The Northwest Atlantic Ocean During Active Marine Heatwave Years, Lydia D. Sims, Bulusu Subrahmanyam, Corinne B. Trott
Faculty Publications
The Northwest (NW) Atlantic has experienced extreme ecological impacts from Marine Heatwaves (MHWs) within the past decade. This paper focuses on four MHW active years (2012, 2016, 2017, and 2020) and the relationship between Sea Surface Temperature anomalies (SSTA), Sea Surface Salinity anomalies (SSSA), North Atlantic Oscillation (NAO), Geopotential Height anomalies (ZA), and anomalous Jet Stream positions (JSPA). Multichannel singular spectrum analysis (MSSA) reveals the strongest temporal covariances between SSSA and SSTA, and JSPA and SSTA for all years, particularly for 2020 (SSSA–SSTA: 50%, JSPA–SSTA: 51%) indicating that this active MHW year was more atmospherically driven, followed by 2012, which …