Digital Commons Network^™

Covid 19 Impact On Aircraft Ground Time At Congonhas Airport (Cgh), Fabio Pereira Teixeira, Felipe Massao Higa, Ricardo Matsumoto Jakabi, Rodrigo Moreira Riberiro

Graduate Student Works

This project aims to research and analyze the impact of the increase of ground time at Congonhas Airport caused by the new safety procedures in aviation to avoid the spread of the COVID-19 virus.

Aviation is a highly regulated industry, with the high cost and tiny margins. It focuses on optimizing one of the most expensive assets, the aircraft. To keep aircraft flying is one of the airline's primary goals as aircraft on the ground means no revenue generation and cost increase.

Congonhas Airport is one of the busiest airports in Brazil and already operated on its limited capacity before …

Përdorimi I Cefalosporinave Në Një Regjion Të Caktuar Të Prizrenit, Arianë Maçkaj

Theses and Dissertations

Shëndeti i çdo pacienti është gjëja primare, dhe duhet të ketë një kujdes të veçantë.

Temën që unë zgjedha si punim diplome tregon faktin që unë dua që ta ruaj shëndetin e pacientëve.

Antibiotikët janë një temë e cila shtjellohet shumë pak por është e një rëndësie shumë të madhe sepse kujdesi gjatë aplikimit të medikamenteve ka një rëndësi të madhe rreth marrjes së tyre.

Antibiotikët janë medikamente të rëndësishme që përdoren për mjekimin e infeksioneve bakteriale si në njerëz në kafshë dhe jo në infeksionet virale.

Përdorimi i antibiotikëve në mënyrën e duhur është mënyra më e mirë për …

Evaluation Of Cytotoxicity And Antibacterial Activity Of A New Class Of Silver Citrate-Based Compounds As Endodontic Irrigants, Luigi Generali, Carlo Bertoldi, Alessandro Bidossi, Clara Cassinelli

Open Access archive

In the present study, the cytotoxicity and the antimicrobial activity of two silver citrate-based irrigant solutions were investigated. Cytotoxicity of various concentrations (0.25%, 0.5%, 1%, 2.5%, 5%) of both solutions (BioAKT and BioAKT Endo) was assessed on L-929 mouse fibroblasts using the MTT assay. For the quantitative analysis of components, an infrared (I.R.) spectroscopy was performed. The minimum inhibitory and minimal bactericidal concentrations (M.I.C. and M.B.C., respectively) were ascertained on Enterococcus faecalis strain ATCC 4083. For biofilm susceptibility after treatment with the irrigating agent, a minimum biofilm eradication concentration (M.B.E.C.) and confocal laser scanning microscope (C.L.S.M.) assays were performed. Quantification …

Did Covid-19 Change Life Insurance Offerings?, Timothy F. Harris, Aaron Yelowitz, Charles J. Courtemanche

Institute for the Study of Free Enterprise Working Papers

The profitability of life insurance offerings is contingent on accurate projections and pricing of mortality risk. The COVID-19 pandemic created significant uncertainty, with dire mortality predictions from early forecasts resulting in widespread government intervention and greater individual precaution that reduced the projected death toll. We analyze how life insurance companies changed pricing and offerings in response to COVID-19 using monthly data on term life insurance policies from Compulife. We estimate event-study models that exploit well-established variation in the COVID-19 mortality rate based on age and underlying health status. Despite the increase in mortality risk and significant uncertainty, we find limited …

Apoe-Modified Liposomes Mediate The Antitumour Effect Of Survivin Promoter-Driven Hsvtk In Hepatocellular Carcinoma, Xiuli Mu, Xi Wang, Yan Wei, Chaochao Wen, Qi Zhang, Chunyang Xu, Chang Liu, Chan Zhang, Fanxiu Meng, Na Zhao, Tao Gong, Rui Guo, Gongqin Sun, Gaopeng Li, Hongwei Zhang, Qin Qin, Jun Xu, Xiushan Dong, Lumei Wang, Baofeng Yu

Cell and Molecular Biology Faculty Publications

Hepatocellular carcinoma (HCC) is a prevalent malignant tumour with high global morbidity and mortality associated with its multiple aetiologies, poor prognosis, resistance to chemotherapeutic drugs and high rate of recurrence. Here, we evaluated a gene therapy strategy that targets HCC using the herpes simplex virus thymidine kinase/ganciclovir (HSVtk/GCV) suicide gene system in HCC cell lines and in an in vivo human HCC xenograft mouse model. Apolipoprotein E (ApoE)-modified liposomes were used for targeted gene delivery to the tumour tissue, and the survivin promoter was used to drive HSVtk expression in HCC cells. Our results showed that the survivin promoter was …

Crisis And Connection, Qiuyi Tan, Christy Davis, Dalvin Sidhu, Tania Nagpaul

Lien Centre for Social Innovation: Research

COVID-19 has bridged a longstanding disconnect between Singapore’s resident and migrant populations, showing that the health and well-being of everyone are linked in a pandemic. This paper reviews the available research on low-wage migrant workers in Singapore and unpacks the challenges using design thinking and its human-centred ethos. Transformative social change often starts with knowledge and understanding. We map out the research so you can use it.

Chain-Selective Isotopic Labeling Of The Heterodimeric Type Iii Secretion Chaperone, Scc4:Scc1, Reveals The Total Structural Rearrangement Of The Chlamydia Trachomatis Bi-Functional Protein, Scc4, Thilini O. Ukwaththage, Samantha M. Keane, Li Shen, Megan A. Macnaughtan

Faculty Publications

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. Scc4 is an unusual bi-functional protein from Chlamydia trachomatis (CT) that functions as a type III secretion system (T3SS) chaperone and an RNA polymerase (RNAP)-binding protein. Both functions require interactions with protein partners during specific stages of the CT developmental cycle. As a T3SS chaperone, Scc4 binds Scc1 during the late stage of development to form a heterodimer complex, which chaperones the essential virulence effector, CopN. During the early-middle stage of development, Scc4 regulates T3SS gene expression by binding the σ66-containing RNAP holoenzyme. In order to study the structure and association …

Psychological, Addictive, And Health Behavior Implications Of The Covid-19 Pandemic, Michael J. Zvolensky, Lorra Garey, Andrew H. Rogers, Norman B. Schmidt, Anka .. Vujanovic, Eric A. Storch, Julia D. Buckner, Daniel J. Paulus, Candice Alfano, Jasper A. J. Smits, Connall O'Cleirigh

Faculty Publications

No abstract provided.

How Parents And Their Children Used Social Media And Technology At The Beginning Of The Covid-19 Pandemic And Associations With Anxiety., Michelle Drouin, Brandon T. Mcdaniel Phd, Jessica Pater, Tammy Toscos Phd

Health Services and Informatics Research

In this study, we examined parents' (n = 260) perceptions of their own and their children's use of social media and other types of communication technologies in the beginning stages of coronavirus disease 2019 (COVID-19) related sanctions (e.g., social distancing) in the United States. We also examined associations between social media and technology use and anxiety. On average, parents reported that both they and their children (especially teenagers aged 13-18) had increased technology and social media use since the beginning of social distancing. Moreover, even after controlling for demographic factors, structural equation models showed that parents and children with …

Patient Engagement: A Key Concept To Surgical Site Infection Reduction In Colorectal Patients, Vanessa Strieff

Master's Projects and Capstones

Abstract

Problem: Colorectal surgery is a procedure with one of the highest surgical site infection (SSI) rates; therefore, necessary efforts were implemented to reduce harm (Harris, 2018). Approximately 60% of these surgical infections are preventable (Ban et al., 2017). SSIs can have severe consequences, including extended length of stay, high morbidity and mortality rates, delayed recovery, and high healthcare costs (Harris, 2018). The financial burden of SSI is substantial.

Context: This project aimed to explore opportunities for enhancing patient engagement and awareness of SSI preventive measures. After an extensive microsystem analysis, a knowledge gap in patient education on …

Herbal Medicines In The Treatment Of Coronavirus Disease 2019 (Covid-19), Audrey C. Tolouian, Maryam Khosravian, Hedieh Ragati Haghi, Alireza Bolourian, Zahra Mojtahedi, Masoumeh Asgharpour, Amirhesam Alirezaei

Nursing Faculty Publications

Coronavirus disease 2019 (COVID-19), caused by a novel coronavirus, started in livestock within the markets of Wuhan, China and was consequently spread around the world. The virus has been rapidly spread worldwide due to the outbreak. COVID-19 is the third serious coronavirus outbreak in less than 20 years after Severe Acute Respiratory Syndrome (SARS) in 2003 and Middle East Respiratory Syndrome (MERS) in 2012. The novel virus has a nucleotide identity closer to that of the SARS coronavirus than that of the MERS coronavirus. Since there is still no vaccine, the main ways to improve personal immunity against this disease …

Social Support During Covid-19 Social Distancing, Josiah P. Stryd

Honors Projects

This pilot study measured emotional affect, social support, and use of digital communication technologies during the early 2020 COVID-19 stay at home order in Michigan among 65 Grand Valley State University Alumni Association members. The study used an online survey and was designed to examine the relationship between digital communication and social support during physical social distancing, and how this impacted emotional affect. Overall, the pilot study found largely unchanged reported emotional affect and social support before and during the stay at home order. A future study with larger sample size would aim to find if these results are replicated …

Descriptive Exploration Of Overdose Codes In Hospital And Emergency Department Discharge Data To Inform Development Of Drug Overdose Morbidity Surveillance Indicator Definitions In Icd-10-Cm, Leigh M. Tyndall Snow, Katelyn E. Hall, Cody Curtis, Allison L. Rosenthal, Emilia Pasalic, Sarah Nechuta, James W. Davis, Bretta Jane Jacquemin, Sherani R. Jagroep, Peter Rock, Elyse Contreras, Barbara A. Gabella, Katherine A. James

Peer Reviewed Articles

Background: In October 2015, discharge data coding in the USA shifted to the International Classification of Diseases, 10th Revision, Clinical Modification (ICD-10-CM), necessitating new indicator definitions for drug overdose morbidity. Amid the drug overdose crisis, characterising discharge records that have ICD-10-CM drug overdose codes can inform the development of standardised drug overdose morbidity indicator definitions for epidemiological surveillance.

Methods: Eight states submitted aggregated data involving hospital and emergency department (ED) discharge records with ICD-10-CM codes starting with T36-T50, for visits occurring from October 2015 to December 2016. Frequencies were calculated for (1) the position within the diagnosis billing fields where …

Investigating Microbial And Host Factors That Modulate Severity Of Clostridioides Difficile Associated Disease, Armando Lerma

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Clostridioides difficile is recognized as one of the most important pathogens in hospital and community healthcare settings. The clinical outcome of infection of toxigenic C. difficile infection (CDI) ranges from asymptomatic colonization to fulminant pseudomembranous colitis and death. In recent studies, it has been suggested that a high proportion of nosocomial CDI cases are transmitted from asymptomatic carriers which might be acting as infection reservoirs. Understanding what causes the different responses to infection could lead to the development of novel prevention and treatment strategies. Although several explanations have been proposed to explain variations in susceptibility, understanding of the exact mechanisms …

Gender And Racial Disparity For Hospital Emergency Service Usage In Usa: A Quantitative Analysis For Various Age Groups During 2010–2017., Subhendra N. Sarkar, Anthony F. Devito, Evans Lespinasse, Faisal Khosa

Publications and Research

Background: Annually emergency department (ED) services are utilized by more than 100 million Americans making ED usage trends important determinants of healthcare quality, outcomes and cost. Previous workers have demonstrated the existence of disparity in various healthcare services in USA although a comprehensive analysis has not been undertaken. Dahlgren and Whitehead rainbow model has offered insights for multiple factors of influence on an individual’s health and focuses on the relationships among these factors. The Commission on Social Determinants of Health (CSDH; WHO initiatives) suggests that the social and environmental factors are at the root of most of the inequalities responsible …

Urgent Actions Needed To Better Ensure An Effective Federal Response, United States: Government Accountability Office (Gao)

Documents

No abstract provided.

Biographical Feature: William A. Hinton, M.D., Erik Munson

Clinical Lab Sciences Faculty Research and Publications

No abstract provided.

Comprehensive Molecular Screening In A Cohort Of Young Men Who Have Sex With Men And Transgender Women: Effect Of Additive Rectal Specimen Source Collection And Analyte Testing, Erik Munson, Alyssa Reynoso, Morena Pass, Kathleen Buehler, Daniel Ryan, Antonia Clifford, Ethan Morgan, Brian Mustanski

Clinical Lab Sciences Faculty Research and Publications

Background

This study's purposes were to characterize detection rates of several sexually transmitted infection (STI) agents and describe the effect additional specimen source and analyte screening has on STI detection within a cohort of young men who have sex with men and transgender women.

Methods

Within a 16-month interval, 1966 encounters involved dual urine and rectal swab submissions assessed by commercial transcription-mediated amplification–based assays for Chlamydia trachomatis and Neisseria gonorrhoeae and by off-label transcription-mediated amplification–based Trichomonas vaginalis and Mycoplasma genitalium testing. Identification of STI carriers used algorithms involving Food and Drug Administration–cleared screening methods, laboratory-modified testing for extraurogenital C. trachomatis …

Evaluation Of The Genetic And Structural Variations Of Camel Hemoglobin, Amanat Ali

Dissertations

The single-humped Arabian camel (Camelus dromedarius) thrives in the hot arid Arabian desert. Many unique adaptations permit it to accomplish this. Camel erythrocytes or red blood cells (RBCs) have a peculiar elliptical shape and are amenable to large variations in physical conditions resulting from dehydration and rehydration cycles. The oxygen transport protein hemoglobin is found abundantly in RBCs and is also believed to behave differently in camels. While several physiological and biochemical studies have been performed on camel hemoglobin, very little is known about genetic and structural adaptions in this protein. The camel genome harbors several unique variations …

Is The Proteome Of Bronchoalveolar Lavage Extracellular Vesicles A Marker Of Advanced Lung Cancer?, Ana Sofia Carvalho, Maria Carolina Strano Moraes, Chan Hyun Na, Ivo Fierro-Monti

Open Access archive

Acellular bronchoalveolar lavage (BAL) proteomics can partially separate lung cancer from non-lung cancer patients based on principal component analysis and multivariate analysis. Furthermore, the variance in the proteomics data sets is correlated mainly with lung cancer status and, to a lesser extent, smoking status and gender. Despite these advances BAL small and large extracellular vehicles (EVs) proteomes reveal aberrant protein expression in paracrine signaling mechanisms in cancer initiation and progression. We consequently present a case-control study of 24 bronchoalveolar lavage extracellular vesicle samples which were analyzed by state-of-the-art liquid chromatography-mass spectrometry (LC-MS). We obtained evidence that BAL EVs proteome complexity …

Highly Pathogenic Avian Influenza (H5n1) Landscape Suitability Varies By Wetland Habitats And The Degree Of Interface Between Wild Waterfowl And Poultry In India, Michael G. Walsh, Siobhan M. Mor, Shah Hossain

Open Access archive

Highly pathogenic avian influenza (HPAI) virus, subtype H5N1, constitutes one of the world’s most important health and economic concerns given the catastrophic impact of epizootics on the poultry industry, the high mortality attending spillover in humans, and its potential as a source subtype for a future pandemic. Nevertheless, we still lack an adequate understanding of HPAI H5N1 epidemiology and infection ecology. The nature of the wild waterfowl–poultry interface, and the sharing of diverse wetland habitat among these birds, currently underscore important knowledge gaps. India has emerged as a global hotspot for HPAI H5N1, while also providing critical wintering habitat for …

Performance Of Molecular And Serologic Tests For The Diagnosis Of Scrub Typhus, Kavitha Kannan, Rebecca John, Debasree Kundu, Divya Dayanand

Open Access archive

Diagnosis of scrub typhus, caused by the bacterium Orientia tsutsugamushi, is challenging because of the overlap of its non-specific symptoms with other infections coupled with the lack of sufficient data on the performance of diagnostic tests. Early diagnosis of scrub typhus is crucial to improve outcomes and this study evaluates the diagnostic performance of various tests. The present study aims at assessing the accuracy of various rapid diagnostic tests, serologic tests, and nucleic acid amplification methods on well-characterized patient samples. Adult patients with acute febrile illness and manifestations suggestive of scrub typhus confirmed by positive PCR in the blood, eschar …

Covid-19 Disparity Among Racial And Ethnic Minorities In The Us: A Cross Sectional Analysis, Raghavendra Tirupathi, Valeriia Muradova, Raj Shekhar, Sohail Abdul Salim

Open Access archive

Aim: To analyze racial disparities in Coronavirus disease (COVID-19) cases in the United States of America and discuss possible reasons behind this inequality. Subject and methods: We obtained estimated case counts of African-American, Caucasian, Native American, Asian and Hispanic individuals with coronavirus disease (COVID-19)infection through May 5, 2020, from publicly available data on state departments of health websites. We calculated race-specific fractions as the percentage of the total population and analyzed the reasons behind this disparity. Results: The incident rates of COVID-19 were higher among African Americans and among Latinos disproportionately higher than their representation in 14 states and 9 …

The Pacifican November 2020, University Of The Pacific

All Issues - Student Newspaper, The Pacifican, Pacific Weekly

No abstract provided.

Employment Law, D. Paul Holdsworth

University of Richmond Law Review

Against the backdrop of a year that saw the COVID-19 pandemic alter the American workplace in an unprecedented way, the employment law landscape in Virginia also underwent a recent sea change. Historically considered an employer-friendly state, the General Assembly shifted away from tradition by enacting several significant pieces of employee-friendly legislation, which will surely have a long-lasting impact on Virginia employees, businesses, and Virginia’s economy at large. This Article highlights these critical developments in Virginia employment law. It does not provide an in-depth analysis of every development but highlights the most significant changes affecting employers and employees in the Commonwealth. …

Vol 1 November '20 Full Issue, Donna L. Williams

Journal of the Louisiana Public Health Association

No abstract provided.

What A Difference A Year Makes, Donna L. Williams

Journal of the Louisiana Public Health Association

No abstract provided.

Public Health In Louisiana: Looking Back And Looking Forward, Rebekah Gee, William R. Boles

Journal of the Louisiana Public Health Association

No abstract provided.

New Orleans Syringe Access Program And Implementation Of Harm Reduction Practices, Nadia Eskildsen, Allison Dejan, Marina Hernandez

Journal of the Louisiana Public Health Association

Background: The New Orleans Syringe Access Program (NOSAP) at CrescentCare strives to reduce transmission of HIV and Hepatitis C among people who inject drugs by following harm reduction principles and advocating for clients’ healthcare goals. Methods: NOSAP staff and volunteers educate clients in safer injection methods and wound care. Clients complete annual intake forms that gather data about their drug use and practices (i.e. syringe disposal, sharing needles), track clientele volume, and guide development of program activities. Results: Since 2014, there has been a 269% increase in number of people served. Furthermore, 79 NOSAP clients were integrated into CrescentCare’s health …

Spotted Owls And Forest Fire: Comment, Gavin M. Jones, R. J. Gutiérrez, William M. Block, Peter C. Carlson, Emily J. Comfort, Samuel A. Cushman, Raymond J. Davis, Stephanie A. Eyes, Alan B. Franklin, Joseph L. Ganey, Shaula Hedwall, John J. Keane, Rodd Kelsey, Damon B, Lesmeister, Malcolm P. North, Susan L. Roberts, Jeremy T. Rockweit, Jamie S. Sanderlin, Sarah C. Sawyer, Ben Solvesky, Douglas J. Tempel, Ho Yi Wan, A. Leroy Westerling, Gary C. White, M. Zachariah Peery

United States Department of Agriculture Wildlife Services: Staff Publications

Western North American forest ecosystems are experiencing rapid changes in disturbance regimes because of climate change and land use legacies (Littell et al. 2018). In many of these forests, the accumulation of surface and ladder fuels from a century of fire suppression, coupled with a warming and drying climate, has led to increases in the number of large fires (Westerling 2016) and the proportion of areas burning at higher severity (Safford and Stevens 2017, Singleton et al. 2018). While the annual area burned by fire is still below historical levels (Taylor et al. 2016), some forest types in the west …