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Pathways To Success For Black Women Leaders In Online Higher Education: Intersectionality Of Gender, Race, And Personality Traits, Shanaya Kuykendahl Anderson Feb 2023

Pathways To Success For Black Women Leaders In Online Higher Education: Intersectionality Of Gender, Race, And Personality Traits, Shanaya Kuykendahl Anderson

Electronic Theses and Dissertations

Previous literature has been used by researchers to suggest that Black women face challenges and obstacles seeking leadership roles at higher education institutions (HEIs). Many of these Black women have consistently and pervasively faced prevailing stereotypes, biases, and barriers as they seek career advancements at online HEIs (Nigar, 2020; Tarbutton, 2019). This qualitative phenomenological study was undertaken in order to examine the intersectionality of gender, race, and personality traits of Black women leaders who hold positions of department chair level or higher in HEIs. Using the theoretical framework of Black feminist thought, this research was conducted to understand better the …


Mindfulness Based Stress Reduction Techniques In Chronic Illness, Anna Celia Gil Feb 2023

Mindfulness Based Stress Reduction Techniques In Chronic Illness, Anna Celia Gil

Electronic Theses and Dissertations

Abstract

Chronic stress and its effect on both physical and mental health have been a topic of increasing interest in the past several decades. There is mounting evidence that recurrent, persistent stress of both a physiologic and psychological nature leads to a dysfunction in the hypothalamic pituitary axis (HPA), the system which helps the body recover and adapt to short term stress. In long term stress, this HPA dysfunction leads to impairment of the immune and neuroendocrine systems resulting in chronic low-grade inflammation. This type of chronic inflammation acts as a precursor to several chronic illnesses such as diabetes, hypertension, …


The Perceptions Of Faculty And Instructional Designers Regarding The Impact Of Professional Development To Teach Online Courses, Scott Mitchell January Feb 2023

The Perceptions Of Faculty And Instructional Designers Regarding The Impact Of Professional Development To Teach Online Courses, Scott Mitchell January

Electronic Theses and Dissertations

Leadership at a mid-sized 4-year university in the western region of Texas asserted a problem with the low amount of faculty training impacting online courses’ creation and quality. The purpose of this qualitative single case study was to investigate the elements needed to design quality online courses, determine how faculty and instructional designers perceived professional development provided by the university to develop online courses, and find out how faculty and instructional designers perceived professional development impacted faculty skills as an online instructor. Three research questions were created which generated two interview protocols. The following research questions were used and were …


Leadership Style In A Faith-Based Athletic Department Setting, Adam P. Ybarra Feb 2023

Leadership Style In A Faith-Based Athletic Department Setting, Adam P. Ybarra

Electronic Theses and Dissertations

In this intrinsic case study, the researcher sought to explore athletic directors’ leadership styles with their coaches’ and administrators’ workplace satisfaction at a Christian-affiliated college in the Southwestern United States. The study explored which leadership style is likely to encourage motivation (i.e., achievement, recognition, growth) and hygiene factors (i.e., policies, supervision, work conditions), which could potentially increase or decrease job satisfaction. The data collection method was semistructured interviews conducted with athletic department personnel. The researcher transcribed and quality-checked the interviews against the audio recordings. The transcripts were member-checked by sharing them with each of the study participants. The researcher analyzed …


Examining Leadership Experiences And Practices Of African American Women In Higher Education Settings To Overcome Barriers, Tanya Stubbs White Feb 2023

Examining Leadership Experiences And Practices Of African American Women In Higher Education Settings To Overcome Barriers, Tanya Stubbs White

Electronic Theses and Dissertations

Abstract: This qualitative case study described the steps 11 African American women have practiced in growing and continuing their path to notable success in higher education leadership. No one size will fit all, but the methods used by African American women may guide other African American or culturally diverse women on how to transcend into and ascertain the well-deserved leadership roles in higher education administration or faculty careers. This study provided narratives of the women leaders to explain their journey to a leadership role. The purpose of the study was to describe the path, barriers, and supports that African American …


Updated Virophage Taxonomy And Distinction From Polinton-Like Viruses, Simon Roux, Matthias G. Fischer, Thomas Hackl, Laura A. Katz, Frederik Schulz, Natalya Yutin Feb 2023

Updated Virophage Taxonomy And Distinction From Polinton-Like Viruses, Simon Roux, Matthias G. Fischer, Thomas Hackl, Laura A. Katz, Frederik Schulz, Natalya Yutin

Biological Sciences: Faculty Publications

Virophages are small dsDNA viruses that hijack the machinery of giant viruses during the co-infection of a protist (i.e., microeukaryotic) host and represent an exceptional case of “hyperparasitism” in the viral world. While only a handful of virophages have been isolated, a vast diversity of virophage-like sequences have been uncovered from diverse metagenomes. Their wide ecological distribution, idiosyncratic infection and replication strategy, ability to integrate into protist and giant virus genomes and potential role in antiviral defense have made virophages a topic of broad interest. However, one limitation for further studies is the lack of clarity regarding the nomenclature and …


Shakespeare On Zoom, Fandom, And The Uncanny Humor Of Imperfections And Plurality: A Comparative Study Of The Show Must Go Online And Zoom Shakespeare Productions, Hyemin Kim Feb 2023

Shakespeare On Zoom, Fandom, And The Uncanny Humor Of Imperfections And Plurality: A Comparative Study Of The Show Must Go Online And Zoom Shakespeare Productions, Hyemin Kim

Dissertations, Theses, and Capstone Projects

This thesis surveys the phenomena of Shakespeare performance on Zoom (‘Shakespeare on Zoom’) that have emerged during the current Covid pandemic in order to illuminate a complex intersection of lockdown culture, fandom, and new media’s techno-social archive, including its affective resonances. As case studies, this study pays attention to The Show Must Go Online (TSMGO) and Zoom Shakespeare Productions (ZSP) to examine countercultural fandom, vernacular creativity, and technologically imperfect aesthetics (or anti-aesthetics) in ‘Shakespeare on Zoom’ performed by underfunded artists or amateur fans. In analyzing TSMGO’s and ZSP’s endeavors of production and dramaturgy, I bring in Sigmund Freud’s …


A Female Pharaoh And The Emperor’S Wife: Hatshepsut, Julia Domna, And Female Authority In Antiquity, Gabriella E. Ramalho Feb 2023

A Female Pharaoh And The Emperor’S Wife: Hatshepsut, Julia Domna, And Female Authority In Antiquity, Gabriella E. Ramalho

Dissertations, Theses, and Capstone Projects

This thesis analyzes how historical notions of masculinity and femininity shaped perceptions of power between the Egyptian female pharaoh Hatshepsut and Roman empress Julia Domna. Both rulers carefully created visual narratives of masculinity and femininity to leverage respect from their citizens, in accordance with what was contextually appropriate for their respective societies.

It will be shown that there are blatant disconnects between how others perceived them and how they wished to be portrayed. Hatshepsut, a rare female pharaoh, depicted herself in the regalia of a male king with a false ceremonial beard, scepters and crowns. Domna was described as the …


How Does Destination Crisis Event Type Impact Tourist Emotion And Forgiveness? The Moderating Role Of Destination Crisis History, Lujun Su, Lin Pan, Yinghua Huang Feb 2023

How Does Destination Crisis Event Type Impact Tourist Emotion And Forgiveness? The Moderating Role Of Destination Crisis History, Lujun Su, Lin Pan, Yinghua Huang

Faculty Research, Scholarly, and Creative Activity

Drawing on attribution theory and situational crisis communication theory, this study investigates how destination crisis events impact tourist sympathy, anger, and intentions of forgiveness in four experiments. It also examines the moderating effects of destination crisis history (none vs. similar vs. dissimilar). The results of Study 1 and Study 2 revealed that external crisis events cause more sympathy and tourist forgiveness than internal ones, but less anger. They also indicated that sympathy and anger play a mediating role in destination crisis events and tourist forgiveness. The results of Study 3 and Study 4 revealed that destination crisis history predicts the …


Low-Cost Quadrature Optical Interferometer, Tanner M. Melody, Krishna H. Patel, Peter K. Nguyen, Christopher L. Smallwood Feb 2023

Low-Cost Quadrature Optical Interferometer, Tanner M. Melody, Krishna H. Patel, Peter K. Nguyen, Christopher L. Smallwood

Faculty Research, Scholarly, and Creative Activity

We report on the construction and characterization of a low-cost Mach-Zehnder optical interferometer in which quadrature signal detection is achieved by means of polarization control. The device incorporates a generic green laser pointer, home-built photodetectors, 3D-printed optical mounts, a circular polarizer extracted from a pair of 3D movie glasses, and a python-enabled microcontroller for analog-to-digital data acquisition. Components fit inside of a 12 ″ × 6 ″ space and can be assembled on a budget of less than US$500. The device has the potential to make quadrature interferometry accessible and affordable for instructors, students, and enthusiasts alike.


Our Pride, Our Joy: An Intersectional Constructivist Grounded Theory Analysis Of Resources That Promote Resilience In Sgm Communities, O. Winslow Edwards, Eliot Lev, Juno Obedin-Maliver, Mitchell R. Lunn, Micah E. Lubensky, Matthew R. Capriotti, J. J. Garrett-Walker, Annesa Flentje Feb 2023

Our Pride, Our Joy: An Intersectional Constructivist Grounded Theory Analysis Of Resources That Promote Resilience In Sgm Communities, O. Winslow Edwards, Eliot Lev, Juno Obedin-Maliver, Mitchell R. Lunn, Micah E. Lubensky, Matthew R. Capriotti, J. J. Garrett-Walker, Annesa Flentje

Faculty Research, Scholarly, and Creative Activity

Introduction Sexual and gender minority (SGM) communities, including lesbian, gay, bisexual, transgender, queer, intersex, asexual, and Two-Spirit people, have historically been researched from a deficits-based approach that fails to highlight the ways communities survive and thrive in the face of adversity. This study endeavored to create a model of resources that promote SGM resilience using a sample that amplified traditionally underrepresented perspectives, including individuals from racial and/or ethnic minority groups, trans and/or gender diverse individuals, individuals on the asexual spectrum, and older adults. Methods Participant responses to three open-ended questions from The PRIDE Study’s (an online national longitudinal cohort study …


Kulpmont Pocket Park Survey Results, Matt Mcmullen, Shaunna Barnhart, Steve Motyka Feb 2023

Kulpmont Pocket Park Survey Results, Matt Mcmullen, Shaunna Barnhart, Steve Motyka

Student Project Reports

No abstract provided.


Identification Of Bradycardia Following Remdesivir Administration Through The Us Food And Drug Administration American College Of Medical Toxicology Covid-19 Toxic Pharmacovigilance Project, Jason M Devgun, Rongmei Zhang, Jeffrey Brent, Paul Wax, Keith Burkhart, Alison Meyn, Sharan Campleman, Stephanie Abston, Kim Aldy, Toxicology Investigators Consortium Fact Study Group Feb 2023

Identification Of Bradycardia Following Remdesivir Administration Through The Us Food And Drug Administration American College Of Medical Toxicology Covid-19 Toxic Pharmacovigilance Project, Jason M Devgun, Rongmei Zhang, Jeffrey Brent, Paul Wax, Keith Burkhart, Alison Meyn, Sharan Campleman, Stephanie Abston, Kim Aldy, Toxicology Investigators Consortium Fact Study Group

2020-Current year OA Pubs

IMPORTANCE: The rapid spread and mortality associated with COVID-19 emphasized a need for surveillance system development to identify adverse events (AEs) to emerging therapeutics. Bradycardia is a remdesivir infusion-associated AE listed in the US Food and Drug Administration-approved prescribing information.

OBJECTIVE: To evaluate the magnitude and duration of bradycardic events following remdesivir administration.

DESIGN, SETTING, AND PARTICIPANTS: A multicenter cohort study of patients with recorded heart rate less than 60 beats per minute within 24 hours after administration of a remdesivir dose was conducted between November 23, 2020, and October 31, 2021. Participants included patients hospitalized with COVID-19 at 15 …


Final Results From A Phase 2b Randomized, Placebo-Controlled Clinical Trial Of Rbx2660: A Microbiota-Based Drug For The Prevention Of Recurrent Clostridioides Difficile Infection, Erik R Dubberke, Robert Orenstein, Sahil Khanna, Beth Guthmueller, Christine Lee Feb 2023

Final Results From A Phase 2b Randomized, Placebo-Controlled Clinical Trial Of Rbx2660: A Microbiota-Based Drug For The Prevention Of Recurrent Clostridioides Difficile Infection, Erik R Dubberke, Robert Orenstein, Sahil Khanna, Beth Guthmueller, Christine Lee

2020-Current year OA Pubs

INTRODUCTION: Effective treatments for recurrent Clostridioides difficile infection (rCDI) are urgently needed. RBX2660 is an investigational microbiota-based live biotherapeutic to reduce CDI recurrence following standard-of-care antibiotic treatment in individuals with rCDI. Here we report the final safety data through 24 months of follow-up as well as final efficacy data, reflecting alignment of the pre-specified statistical analysis plan definitions with the data presented.

METHODS: The PUNCH CD2 clinical trial was a prospective, multicenter, randomized, double-blinded, placebo-controlled, three-arm phase 2b study conducted to evaluate the efficacy and safety of RBX2660 for the reduction of rCDI compared to placebo. Eligible patients were at …


Functional And Clinical Studies Reveal Pathophysiological Complexity Of Clcn4-Related Neurodevelopmental Condition, Elizabeth E Palmer, Linda J Richards, Et Al. Feb 2023

Functional And Clinical Studies Reveal Pathophysiological Complexity Of Clcn4-Related Neurodevelopmental Condition, Elizabeth E Palmer, Linda J Richards, Et Al.

2020-Current year OA Pubs

Missense and truncating variants in the X-chromosome-linked CLCN4 gene, resulting in reduced or complete loss-of-function (LOF) of the encoded chloride/proton exchanger ClC-4, were recently demonstrated to cause a neurocognitive phenotype in both males and females. Through international clinical matchmaking and interrogation of public variant databases we assembled a database of 90 rare CLCN4 missense variants in 90 families: 41 unique and 18 recurrent variants in 49 families. For 43 families, including 22 males and 33 females, we collated detailed clinical and segregation data. To confirm causality of variants and to obtain insight into disease mechanisms, we investigated the effect on …


Dissecting Cell Identity Via Network Inference And In Silico Gene Perturbation, Kenji Kamimoto, Blerta Stringa, Christy M Hoffmann, Kunal Jindal, Lilianna Solnica-Krezel, Samantha A Morris Feb 2023

Dissecting Cell Identity Via Network Inference And In Silico Gene Perturbation, Kenji Kamimoto, Blerta Stringa, Christy M Hoffmann, Kunal Jindal, Lilianna Solnica-Krezel, Samantha A Morris

2020-Current year OA Pubs

Cell identity is governed by the complex regulation of gene expression, represented as gene-regulatory networks


The Ntpase Activity Of The Double Fyve Domain-Containing Protein 1 Regulates Lipid Droplet Metabolism., Victoria A. Ismail, Teri Naismith, David J. Kast Feb 2023

The Ntpase Activity Of The Double Fyve Domain-Containing Protein 1 Regulates Lipid Droplet Metabolism., Victoria A. Ismail, Teri Naismith, David J. Kast

2020-Current year OA Pubs

Lipid droplets (LDs) are transient lipid storage organelles that can be readily tapped to resupply cells with energy or lipid building blocks and therefore play a central role in cellular metabolism. However, the molecular factors and underlying mechanisms that regulate the growth and degradation of LDs are poorly understood. It has emerged that proteins that establish contacts between LDs and the endoplasmic reticulum play a critical role in regulating LD metabolism. Recently, the autophagy-related protein, double FYVE domain-containing protein 1 (DFCP1/ZFYVE1) was shown to reside at the interface of the endoplasmic reticulum and LDs, however, little is known about the …


The Insurance Landscape For Implant- And Autologous-Based Breast Reconstruction In The United States, Louisa C. Boyd, Jason A. Greenfield, Sravya S. Ainapurapu, Rachel Skladman, Gary Skolnick, Durai Sundaramoorthi, Justin M. Sacks Feb 2023

The Insurance Landscape For Implant- And Autologous-Based Breast Reconstruction In The United States, Louisa C. Boyd, Jason A. Greenfield, Sravya S. Ainapurapu, Rachel Skladman, Gary Skolnick, Durai Sundaramoorthi, Justin M. Sacks

2020-Current year OA Pubs

UNLABELLED: Insurance coverage of postmastectomy breast reconstruction is mandated in America, regardless of reconstructive modality. Despite enhanced patient-reported outcomes, autologous reconstruction is utilized less than nonautologous reconstruction nationally. Lower reimbursement from Medicare and Medicaid may disincentivize autologous-based reconstruction. This study examines the impact of insurance and sociodemographic factors on breast reconstruction.

METHODS: A retrospective analysis of the Healthcare Cost and Utilization Project National Inpatient Sample Database from 2014 to 2017 was performed. International Classification of Diseases Clinical Modification and Procedure Coding System codes were used to identify patients for inclusion. De-identified sociodemographic and insurance data were analyzed using

RESULTS: In …


Machine Learning Approximations To Predict Epigenetic Age Acceleration In Stroke Patients, Isabel Fernández-Pérez, Joan Jiménez-Balado, Uxue Lazcano, Eva Giralt-Steinhauer, Lucía Rey Álvarez, Elisa Cuadrado-Godia, Ana Rodríguez-Campello, Adrià Macias-Gómez, Antoni Suárez-Pérez, Anna Revert-Barberá, Isabel Estragués-Gázquez, Carolina Soriano-Tarraga, Jaume Roquer, Angel Ois, Jordi Jiménez-Conde Feb 2023

Machine Learning Approximations To Predict Epigenetic Age Acceleration In Stroke Patients, Isabel Fernández-Pérez, Joan Jiménez-Balado, Uxue Lazcano, Eva Giralt-Steinhauer, Lucía Rey Álvarez, Elisa Cuadrado-Godia, Ana Rodríguez-Campello, Adrià Macias-Gómez, Antoni Suárez-Pérez, Anna Revert-Barberá, Isabel Estragués-Gázquez, Carolina Soriano-Tarraga, Jaume Roquer, Angel Ois, Jordi Jiménez-Conde

2020-Current year OA Pubs

Age acceleration (Age-A) is a useful tool that is able to predict a broad range of health outcomes. It is necessary to determine DNA methylation levels to estimate it, and it is known that Age-A is influenced by environmental, lifestyle, and vascular risk factors (VRF). The aim of this study is to estimate the contribution of these easily measurable factors to Age-A in patients with cerebrovascular disease (CVD), using different machine learning (ML) approximations, and try to find a more accessible model able to predict Age-A. We studied a CVD cohort of 952 patients with information about VRF, lifestyle habits, …


Autophagy Requirements For Eye Lens Differentiation And Transparency, Lisa Brennan, M Joseph Costello, J Fielding Hejtmancik, A Sue Menko, S Amer Riazuddin, Alan Shiels, Marc Kantorow Feb 2023

Autophagy Requirements For Eye Lens Differentiation And Transparency, Lisa Brennan, M Joseph Costello, J Fielding Hejtmancik, A Sue Menko, S Amer Riazuddin, Alan Shiels, Marc Kantorow

2020-Current year OA Pubs

Recent evidence points to autophagy as an essential cellular requirement for achieving the mature structure, homeostasis, and transparency of the lens. Collective evidence from multiple laboratories using chick, mouse, primate, and human model systems provides evidence that classic autophagy structures, ranging from double-membrane autophagosomes to single-membrane autolysosomes, are found throughout the lens in both undifferentiated lens epithelial cells and maturing lens fiber cells. Recently, key autophagy signaling pathways have been identified to initiate critical steps in the lens differentiation program, including the elimination of organelles to form the core lens organelle-free zone. Other recent studies using ex vivo lens culture …


A Word From The Writing Team (February 2023), Pam Walter, Mfa, Liz Declan, Ma, Mfa Feb 2023

A Word From The Writing Team (February 2023), Pam Walter, Mfa, Liz Declan, Ma, Mfa

A Word From the Writing Team (Newsletter)

This issue includes:

  • Writing Retreats on First Fridays
  • Faculty Days 2023 Deadline
  • On-Demand Workshops


First-Principles Calculations On The Electronic Structure, Mechanical, Vibrational, And Thermal Properties Of The Ca₃Bin Antiperovskite Alloy, Reem Maher Mohamad Feb 2023

First-Principles Calculations On The Electronic Structure, Mechanical, Vibrational, And Thermal Properties Of The Ca₃Bin Antiperovskite Alloy, Reem Maher Mohamad

Theses

Antiperovskites are the counterparts of perovskites. They have diverse properties that make them physically rich and technologically relevant. In the recent years, the alkaline earth based antiperovskites, especially the ones with small semiconductor bandgap, have captured tremendous attention due to their properties which make them efficient to be used in optoelectronic and thermoelectric applications. In this thesis, we are shading light on the alkaline antiperovskite ����3������ due to its narrow bandgap. Thus, it can be considered as a promising candidate for thermoelectric and optoelectronic applications. Specifically, it is used to harvest waste thermal energy into electricity at low …


The Impact Of School-Based Intervention For Overweight And Obese 9-13-Year-Olds On Anthropometry, Nutrition Knowledge, Attitudes, Selfefficacy And Dietary Behaviors, Sara Zuarub Feb 2023

The Impact Of School-Based Intervention For Overweight And Obese 9-13-Year-Olds On Anthropometry, Nutrition Knowledge, Attitudes, Selfefficacy And Dietary Behaviors, Sara Zuarub

Dissertations

Childhood obesity has emerged as a significant public health concern in the United Arab Emirates (UAE). The study evaluated the effects of school-based nutrition education on knowledge, attitude, dietary practices, self-efficacy, and anthropometric measurements of overweight and obese school children aged 9-13 years. Additionally, the parents' perceptions on factors contributing to childhood obesity were examined. A 6-month intervention program based on Social Cognitive Theory (SCT) was undertaken by children from 36 public schools located in Dubai and Sharjah emirates, UAE. The overweight/obese school children (n = 403) were classified into three categories, including two intervention groups (1 and 2) and …


Urban Air Mobility (Uam) Flight Path: Literature Review And Conceptual Design Of Uam Corridor Virtual Lane System Using “Tracks”, Immanuel Bankole Feb 2023

Urban Air Mobility (Uam) Flight Path: Literature Review And Conceptual Design Of Uam Corridor Virtual Lane System Using “Tracks”, Immanuel Bankole

Student Works

As the Urban Air Mobility (UAM) industry grows and becomes more popular, most of the conversations in the public domain are focused on the (electric Vertical Take-off and Landing) eVTOL aircraft and the physical infrastructure that will support these eVTOL aircraft. However, there is a lack of research on UAM traffic management and flight paths taken by aircraft between locations.

The United States (U.S.) Federal Aviation Administration has proposed the use of corridors to minimize the interaction between UAM operations and traditional air traffic as eVTOL aircraft perform flight activities. The government also acknowledges the need for additional structures (such …


Heat Transfer In Mini-Channel Heat Exchanger With Smooth And Pin-Fins Surfaces, Mohammed Molham Daadoua Feb 2023

Heat Transfer In Mini-Channel Heat Exchanger With Smooth And Pin-Fins Surfaces, Mohammed Molham Daadoua

Theses

This research aims to investigate heat transfer of single-phase and two-phase fluids in mini-channel heat exchanger with smooth and pin-fins surfaces. The main goal of the study is to develop a high-performance heat exchanger for thermal management in various processing applications. This research is carried out using computational fluid dynamics (CFD) modeling and experimentations. The proposed method is to use enhanced structured pin-fins surfaces in a mini-channel heat exchanger to improve heat transfer. The pin-fin microchannel heat exchanger is investigated using a CFD method with single-phase fluid (water, air). The experimental investigations are conducted using single-phase and two-phase fluid involving …


A Narrative Review Of Screen Time And Wellbeing Among Adolescents Before And During The Covid-19 Pandemic: Implications For The Future, Verity Yu Qing Lua, Terence B. K. Chua, Michael Y. H. Chia Feb 2023

A Narrative Review Of Screen Time And Wellbeing Among Adolescents Before And During The Covid-19 Pandemic: Implications For The Future, Verity Yu Qing Lua, Terence B. K. Chua, Michael Y. H. Chia

Research Collection School of Social Sciences

The COVID-19 pandemic has disrupted the lives of many. In particular, during the height of the pandemic, many experienced lockdowns, which in turn increased screen time drastically. While the pandemic has been declared an endemic and most activities have been reinstated, there appears to still be elevated screen time among adolescents due to poor habits formed during the pandemic lockdowns. This paper explores the factors by which screen time affects well-being among adolescents and how the pandemic may have influenced some of these factors. For example, beyond having greater screen time, many adolescents have also reduced their physical activities and …


Efficient Approach For Solving (2+1) D- Differential Equations, Luma N. M. Tawfiq, Noor A. Hussein Feb 2023

Efficient Approach For Solving (2+1) D- Differential Equations, Luma N. M. Tawfiq, Noor A. Hussein

Baghdad Science Journal

In this article, a new efficient approach is presented to solve a type of partial differential equations, such (2+1)-dimensional differential equations non-linear, and nonhomogeneous. The procedure of the new approach is suggested to solve important types of differential equations and get accurate analytic solutions i.e., exact solutions. The effectiveness of the suggested approach based on its properties compared with other approaches has been used to solve this type of differential equations such as the Adomain decomposition method, homotopy perturbation method, homotopy analysis method, and variation iteration method. The advantage of the present method has been illustrated by some examples.


Synthesis, Theoretical Study, And Biological Evaluation Of Some Metal Ions With Ligand "Methyl -6-[2-(4-Hydroxyphenyl) -2-((1-Phenylethylidene) Amino) Acetamido] -2,2-Dimethyl-5—Oxo-1-Thia-4-Azabicyclo [3.2.0] Heptane-3-Carboxyylate, Sahar S. Hassan, Nafeesa J. Kadhim, Zahraa. A. Jaber Feb 2023

Synthesis, Theoretical Study, And Biological Evaluation Of Some Metal Ions With Ligand "Methyl -6-[2-(4-Hydroxyphenyl) -2-((1-Phenylethylidene) Amino) Acetamido] -2,2-Dimethyl-5—Oxo-1-Thia-4-Azabicyclo [3.2.0] Heptane-3-Carboxyylate, Sahar S. Hassan, Nafeesa J. Kadhim, Zahraa. A. Jaber

Baghdad Science Journal

Schiff base (methyl 6-(2- (4-hydroxyphenyl) -2- (1-phenyl ethyl ideneamino) acetamido) -3, 3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0] heptane-2-carboxylate)Co(II), Ni(II), Cu (II), Zn (II), and Hg(II)] ions were employed to make certain complexes. Metal analysis M percent, elemental chemical analysis (C.H.N.S), and other standard physico-chemical methods were used. Magnetic susceptibility, conductometric measurements, FT-IR and UV-visible Spectra were used to identified. Theoretical treatment of the generated complexes in the gas phase was performed using the (hyperchem-8.07) program for molecular mechanics and semi-empirical computations. The (PM3) approach was used to determine the heat of formation (ΔH˚f), binding energy (ΔEb), and total energy (ET) for ligands and metal complexes …


A Heuristic Approach To The Consecutive Ones Submatrix Problem, Rewayda Abo-Alsabeh, Hajem Ati Daham, Abdellah Salhi Feb 2023

A Heuristic Approach To The Consecutive Ones Submatrix Problem, Rewayda Abo-Alsabeh, Hajem Ati Daham, Abdellah Salhi

Baghdad Science Journal

Given a matrix, the Consecutive Ones Submatrix (C1S) problem which aims to find the permutation of columns that maximizes the number of columns having together only one block of consecutive ones in each row is considered here. A heuristic approach will be suggested to solve the problem. Also, the Consecutive Blocks Minimization (CBM) problem which is related to the consecutive ones submatrix will be considered. The new procedure is proposed to improve the column insertion approach. Then real world and random matrices from the set covering problem will be evaluated and computational results will be highlighted.


Sediment Assessment Of Al-Hindyia And Al-Abbasyia River / Iraq By Aquatic Oligocheata Community As Bioindicators, Nadia Imad Al-Ameen, Dlovan Kammal Al-Jaff Feb 2023

Sediment Assessment Of Al-Hindyia And Al-Abbasyia River / Iraq By Aquatic Oligocheata Community As Bioindicators, Nadia Imad Al-Ameen, Dlovan Kammal Al-Jaff

Baghdad Science Journal

Bioindicators have an important role in assessing the quality of water bodies. Aquatic oligocheates, was used as a bioindicator to assess the sediment quality of Al-Hindyia and AL-Abbasyia river (branches of Euphrates River in Iraq). Two sites in each river have been chosen for this purpose, site S1 was located at Al-Hindyia River and S2 at Al-Abbasyia River. Some kinds of biological indices were used in this study, comprising the percentage of oligochaetes in benthic invertebrates, ranged from 20.3-60.16%. While the percentage of Tubificidae within benthic invertebrates was close 43.3-43.9%.Index of pollution D ranged from 0.13-0.21. The maximum percentage of …