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Mesostructure Reconstruction Of Prepreg Platelet Molded Composite With Artificial Intelligence, Richard Larson

Mechanical & Aerospace Engineering Theses & Dissertations

Prepreg platelet molded composites (PPMC) are long, discontinuous fiber reinforced polymer materials. PPMC are an important subcategory of composite materials as they are processible into geometrically complex structures and can be produced via high-throughput manufacturing processes, however they have higher stiffness and strength as compared to traditional discontinuous fiber reinforced polymers. However, there is inherent randomness in the structure of PPMCs and as such, PPMC parts frequently require per part testing that is cost prohibitive.

Herein, a method using artificial intelligence is proposed as a more cost-effective method of inspecting PPMC parts. Different artificial intelligence (AI) architectures are explored to …

Investigation Of Cooperative Subradiance In Dense Ultracold Rubidium Ensembles, Brent Michael Jones

Physics Theses & Dissertations

This dissertation presents results of an experimental investigation of the time resolved fluorescence from a cold and dense ensemble of ⁸⁷Rb atoms after the sample is illuminated by a short probe pulse. The goal of the experiment was to investigate cooperative subradiant behavior, characterized by a much longer decay time compared to the natural lifetime, induced in an off resonant probe regime. Such long lived states, if controllable, would provide a means to store quantum information. The samples were initially created in a magnetooptical trap before atoms were loaded into a far off resonance trap to achieve atomic densities …

Testing A Model Of Ethnic/Racial Discrimination, Ethnic Identity, And Adult Attachment In College Students, Kenneth L. Ayers

Psychology Theses & Dissertations

Ethnic/racial minoritized Americans encounter a disproportionate amount of discrimination throughout their lifetime that often has negative effects on their well-being and mental health. Although the impact of discrimination on symptoms of depression and substance use has been widely studied, understanding of the mechanisms through which these associations exist are still largely unknown. From the perspective of the Cultural Development and Psychopathology Framework, the effects of discrimination on psychopathology (i.e., depression symptoms and alcohol use) are likely mitigated by normative developmental processes. One such developmental outcome that has been determined to partially mediate the impact of cultural stressors (i.e., ethnic/racial discrimination) …

In Situ Synthesis, Characterization And Photocatalytic Efficacy Of Silver-Enhanced Mxene And Graphene Nanocomposites, Kishore Chand, M. Mustafa Azeem, Muhammad Nazim Lakhan, Mukhtiar Ahmed, Muhammad Jehanzaib Aslam, Ahmer Hussain Shah

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The emergence of 2D materials has significantly expanded the wide range of nanomaterials with diverse applications. Notably, their high conductivity, catalytic efficiency, and hydrophobicity have fueled heightened research interests for water treatment applications. This research aimed to investigate the synthesis and characterization of MXene and reduced graphene oxide (rGO) nanocomposites with silver nanoparticles (Ag) for enhanced catalytic activity in the decomposition of Direct Blue-24 dye. In this study, we employed well-established methods, previously documented in the literature, to prepare two distinct nanocomposites. Novel nanocomposites, namely reduced graphene oxide–silver nanoparticles (rGO–Ag) and MXene–silver nanoparticles (MXene–Ag), were synthesized using the hydrothermal and …

Freezing-Thawing Hysteretic Behavior Of Soils, Jidong Teng, Antai Dong, Sheng Zhang, Xiong Zhang, Daichao Sheng

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The soil freezing characteristic curve (SFCC) plays a crucial role in investigating the soil freezing-thawing process. Due to the challenges associated with measuring the SFCC, there is a shortage of high-quality or rigorous test results with sufficient metadata to be effectively used for applications. Current researchers typically conduct freezing tests to measure the SFCC and assume a singular SFCC when studying the freezing-thawing process of soils, although limited studies indicated that there is a hysteresis during the freezing and thawing process. In this paper, a series of freezing-thawing tests were performed to assess the SFCC, utilizing a precise nuclear magnetic …

The Effect On Back Pain, Anxiety, And Comfort Levels Of An Elevated Supine Position And Back Support Applied To Patients Undergoing Coronary Angiography: A Randomized Controlled Experimental Study, Ayşe Soylu, Medet Korkmaz

Saudi Medical Journal

Objectives: To determine the effect of elevated supine position with back support on back pain, anxiety and comfort in patients undergoing coronary angiography. Methods: This randomized-controlled, experimental study was conducted in the Coronary Intensive Care Unit between September 2021 and January 2022, with an intervention group of 51 patients and a control group of 53 patients. Data were collected using a patient information form, a visual analog scale, the anxiety state inventory and the immobilization comfort questionnaire. Following angiography, the intervention group received pillow support to the back and the bedhead was elevated to 30 degrees. Routine nursing care was …

Drug-Coated Balloons Versus Conventional Percutaneous Transluminal Angioplasty For Treatment-Naïve Dysfunctional Arteriovenous Fistulas.: A 10-Year Single Center Retrospective Study, Abdulaziz Alqubaisi, Mohammad Arabi, Yousof Alzahrani, Omar Bashir

Saudi Medical Journal

Objectives: To compare the primary patency and restenosis rates in treatment naieve dialysis arteriovenous fistulas (AVFs) after drug-coated balloons (DCB) versus plain balloon angioplasty (PTA). Methods: This retrospective study included 157 patients who underwent AVF angioplasty for treatment-native AVF stenosis between January 2012 to 2022. The fistulas were Brachiocephalic (75%), Brachiobasilic (17%), and radiocephalic (8%). The index intervention was with either DCB or percutaneous transluminal angioplasty (PTA) with subsequent follow up. Patients with central venous stenosis, thrombosed fistula, fistula stents, AV graft or surgical intervention after the index procedure were excluded. Results: Arteriovenous fistula angioplasty was done in 28 patients …

Assessing The Prevalence And Knowledge Of Anabolic Steroid Use In Male Athletes In Al Madina Al Munawara, Saudi Arabia, Bandar D. Alrehaili, Samar F. Miski, Fahad M. Alzahrani

Saudi Medical Journal

Objectives: To assess the prevalence of anabolic steroid use and the level of knowledge on anabolic steroids among the male athletes in Al Madina Al Munawara, Saudi Arabia. Methods: A cross-sectional study was conducted on male athletes randomly selected from the private athletic centers in Al Madina Al Munawara over 5 months. Data were collected from all participants using a self-administered anonymous questionnaire with 33 questions. The questionnaire covered the socio-demographic characteristics of the participants, and their knowledge, attitudes, and use of anabolic steroids. Results: Of the 150 male athletes surveyed, 121 completed the questionnaire (response rate: 80.6%). Over half …

Experts Warn Of Serious Health Impacts From Climate Change For Pregnant Women, Children, And Older People

Saudi Medical Journal

No abstract provided.

Incidence And Predictive Factors Of Bleeding Following Tonsillectomy Among Pediatrics: A Retrospective Cohort Study, Shmokh Alsalamah, Sultan Alsumairi, Abdulaziz Alaraifi, Abdulrhman Alfayez, Mohammed Halawani

Saudi Medical Journal

Objectives: To estimate the incidence of post tonsillectomy bleeding and to identify its predisposing factors among the pediatric population. Methods: A retrospective cohort study included 1280 pediatric patients (18 years or younger) who underwent tonsillectomy at King Abdullah Specialized Children Hospital, Riyadh, Saudi Arabia between 2019 and 2020. The study sample was divided into 2 groups based on the development of postoperative bleeding and were compared using Chi-square test and independent t-test. Significant variables ( p -value ≤0.05) were included in the logistic regression model to determine the predictors of bleeding following tonsillectomy. Results: The bleeding rate following tonsillectomy was …

Patch Angioplasty Carotid Endarterectomy Versus Eversion Carotid Endarterectomy, Haris Vukas, Samra Kadić-Vukas, Dragan Piljić, Haris Vranić, Anes Jogunčić, Edina Đozić, Juš Kšela

Saudi Medical Journal

Objectives: To compare carotid endarterectomy patch angioplasty (p-CEA) with eversion carotid endarterectomy (e-CEA) and associated risks of early cardio-cerebrovascular complications. Methods: The study was a prospective randomized single-blind trial, monocentric, clinically applicable, descriptive analytical and comparative. From June 2021 to June 2023, 62 consecutive patients with symptomatic and asymptomatic stenosis of the internal carotid artery, admitted to our department and randomized into two groups: carotid endarterectomy with patch angioplasty and eversion carotid endarterectomy. Follow-up for 30 days after surgery. Results: During surgery e-CEA, 70% patients had an arrhythmia, and 24 hours after 66.7%, seven days after 46.7% and month after …

Overcoming Socioeconomic Obstacles Is Important In Achieving Equity In Health Care, Jamie Fairweather, Ali S. Jawad

Saudi Medical Journal

No abstract provided.

In This Issuereview Articleoriginal Articlescase Report

Saudi Medical Journal

No abstract provided.

Focal Dystonia In An Adult With L-2- Hydroxyglutaric Aciduria, Saleem Albalawy, Noura Tasbahji

Saudi Medical Journal

L-2-Hydroxyglutaric aciduria (L-2-HGA) is a rare disorder. The patients have psychomotor retardation, ataxia, macrocephaly, and epilepsy usually in childhood. We present a case of L-2-HGA who developed dystonia in the third decade of life. The family reported symptoms of progressive psychomotor regression since childhood. On assessment, the patient had mild impairment of higher mental functions, mild exotropia, and right-hand dystonia. Brain MRI revealed diffuse bilateral symmetrical subcortical white matter hyperintense signals. 2-hydroxyglutaric acid in urine was elevated and the whole genome sequencing revealed a homogeneous pathogenic variant of the L-2-hydroxyglutarate dehydrogenase (L2HGDH) gene. The prognosis was explained to the caregivers. …

Serological Markers Of Transfusion Transmissible Infections And Abo Blood Groups In Najran, Saudi Arabia, Ahmad A. Alshehri, Ahmad Adebayo Irekeola, Mohammed Merae Alshahrani, Saeed Ahmed Asiri, Banan F. Aboluluy, Abdulaziz Hassan Alhasaniah, Ibrahim Abdullah Almazni, Saleh A. Alshamrani, Abdullah J. Alshahrani, Ahmad M. Saif, Osman Ae. Elnoubi, Abdulrahim R. Hakami, Abdulrazzag Abdulaziz Othman, Mansor H. Almohi

Saudi Medical Journal

Objectives: To ascertain the prevalence of transfusion transmissible infections (TTIs) across diverse donor groups in the Najran province. Additionally, to establish a potential association between the development of TTI and the donors’ blood group, as determined by the ABO/Rh blood grouping system. Methods: Blood donation data of 4120 donors, spanning from January to December 2020, were retrospectively reviewed. The blood were screened for TTI markers, including hepatitis B surface antigen (HBsAg), anti-hepatitis B core (anti-HBc), anti-hepatitis C virus (anti-HCV), anti-human immunodeficiency viruses 1 and 2 (anti-HIV1&2), anti-human T-lymphotropic virus types 1 and 2 (anti-HTLV-1&2), and syphilis antigen. Results: Positive TTI …

Biomarker For Cardiorenal Syndrome Risk In Patients With Liver Cirrhosis And Type 2 Diabetes In Saudi Arabia, Walaa Mohammedsaeed, Zain J Alghamdi

Saudi Medical Journal

Objectives: To evaluate the correlation between different attributes, levels of biomarkers, and the probability of developing cardiorenal syndrome (CRS) in patients who have been diagnosed with type 2 diabetes mellitus (T2DM) and liver cirrhosis (LC). The hypothesis suggests that liver illness may be linked to renal impairment, cardiac dysfunction, and the development of cardiorenal syndrome Methods: The current study retrospectively assessed the medical records of patients who had LC and T2DM diagnoses and were hospitalized at Al Madina Al Munwara hospitals in 2022 and 2023. Results: This research investigated T2DM patients with physician-confirmed to have LC. Poor glycemic control is …

Finding Aid For The Almeda Gardner Industrial School (Mum00820)

Archives & Special Collections: Finding Aids (alphabetical)

The Almeda Gardner Industrial School for Girls was an African American school located in Moorehead, Mississippi. The school opened in October 1892 and was connected to the American Missionary Association as well as the founder of the town, Chester H. Pond. These pictures were taken roughly between 1924- 1927. A few of the photographs of this collection recall the flood of 1927.

Finding Aid For The Curtis Wilkie Collection (Mum00477), Leigh Mcwhite

Archives & Special Collections: Finding Aids (alphabetical)

Born and raised in Mississippi, Curtis Wilkie had a distinguished career in newspaper journalism at the Clarksdale Press Register (1963-1969), Mississippi Freelance (1969-1970), Wilmington News Journal (1971-1975), and the Boston Globe (1975-2001). After retirement from the Boston Globe, he became a professor and Fellow at the Overby Center for Journalism and Politics at the University of Mississippi and wrote several books on his career, national and southern politics, and the South.

Finding Aid For The Hooper/Rhodesian Information Office Collection (Mum00819)

Archives & Special Collections: Finding Aids (alphabetical)

The Hooper/Rhodesian Information Office Collection contains edited letters and drawings by Win Hooper in Washington, DC from 1965 to 1978. During that period, her husband, John Hooper, served as Rhodesia’s registered Information Officer in the United States when the African country was denied diplomatic recognition.

Systemic Regulation Of Artificial Intelligence, Yonathan Arbel, Matthew Tokson, Albert Lin

Articles

Today's artificial intelligence ("AI") systems exhibit increasing capabilities across a remarkable variety of tasks. The rapid growth in AI ability has caught the attention of policymakers, parliaments, and the United Nations. These entities are increasingly looking towards regulating AI, not only in its particular applications, but as a technology. Yet legal scholarship has thus far offered little to this new and critical regulatory conversation, which has instead been dominated by computer scientists and technologists.

This Article begins the project of assessing AI's broader risks and law's role in addressing them. These risks are wide ranging -they span harms to vulnerable …

Building Sevices Engineering July/August 2024

Building Services Engineering

No abstract provided.

What's Success? And What Is It That Gives Meaning To Our Lives?, Seow Hon Tan

Research Collection Yong Pung How School Of Law

This op-ed examines how the narrow mindset of success can hinder one from flourishing and leading an examined life. It looks at Prime Minister Lawrence Wong's call for Singaporeans to change their mindset of success, and calls for a national reset.

Evaluating The Impacts Of Climate Change On The City Of Santa Fe’S Municipal Water Supply Using System Dynamics Modeling, Atlin Johnson

Civil Engineering ETDs

Climate change is one of the foremost problems facing water resources globally. Rising temperatures can impact global water supplies through decreased precipitation, increased evaporation, greater severity and frequency of extreme weather events, and increased wildfire risk. This work used system dynamics modeling through a social, ecological, and technical systems framework to evaluate the impact that climate change has on the municipal water supply for the City of Santa Fe in northern New Mexico, USA. Specifically, the model showed how, by the end of the century, climate change decreases total average annual water supplies by 28% and increases reliance on groundwater …

Establishing Marine Protected Areas In The Southern Ocean, Lessons For The Bbnj Agreement, Nengye Liu

Research Collection Yong Pung How School Of Law

This paper first gives a brief overview of the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR)’s struggle to establish Antarctic Marine Protected Areas (MPAs). The paper then addresses the question: what lessons can countries learn from CCAMLR's experience in establishing high seas MPAs under the Biodiversity in Areas Beyond National Jurisdiction (BBNJ) Agreement? The paper finds that the final text of the BBNJ Agreement did largely reflect CCAMLR's experience when it comes to MPAs. This is particularly so with respect to 1) clarification of the relationship between conservation and use; 2) the interpretation and application of a …

Gamified Bodies And The Illusory Meaning Of Muscle, Orlando Woods

Research Collection College of Integrative Studies

This paper foregrounds the agency of the body to explore how it is “gamified” in the pursuit of a desired self-image. Gamified bodies are those that are tricked into metabolising in ways that suit the representational aspirations of the self. The aspirations that I consider in this paper are those of muscle, and how individuals trying to build muscle pursue various metabolic tricks to try and overcome, or otherwise suppress, the in-built agency of the body. Exploring and understanding these tricks contributes to feminist understandings of the body generally, and of muscle specifically, and its unruly nonconformity to the gendered …

Insourcing The Smart City: Assembling An Ideo-Technical Ecosystem Of Talent, Skills, And Civic-Mindedness In Singapore, Orlando Woods, Tim Bunnell, Lily Kong

Research Collection College of Integrative Studies

This article examines an alternative model of smart city formation, one based on the principle of insourcing technical competencies and capabilities to those responsible for city governance. This model counters the logic of technological outsourcing upon which many assumptions and critiques of the smart city rest, and thus reveals ways in which a more generative discourse can be forged. Drawing on a series of in-depth interviews with senior stakeholders from public and private sector organizations, we develop a case study of Singapore’s Smart Nation initiative. Through coordinated efforts to reorganize the public sector’s technological functions, develop nation-wide skills upgrading programs, …

Impact Of Rainfall On Air Temperature, Humidity And Thermal Comfort In Tropical Urban Parks, Juan A. Acero, Philip Carl Kestel, Hieu T. Dang, Leslie K. Norford

Research Collection College of Integrative Studies

Urban areas in hot and humid tropical regions are frequently exposed to uncomfortable thermal levels. A well-developed urban heat mitigation strategy is increasing vegetation infrastructure, even though the impact differs based on regional climate. In this study we have evaluated the impact of rainfall on air temperature, humidity and thermal comfort inside a large urban park in Singapore, based on measurement campaigns. A comparison between the park and an urban site is presented. Results show that rainfall significantly reduces air temperature and improves thermal comfort levels, not only right after the rain event but also in the after-event dry period. …

Of Light And Shadows: Buddhism, Cinema, And The Question Of Diffused Religion In Modern China, Teng-Kuan Ng

Research Collection College of Integrative Studies

While the scholarship on premodern Chinese Buddhism has explored the tradition’s rich diffusion throughout various realms of sociocultural life, the study of modern Chinese Buddhism leans heavily towards its monastic, institutional, and overtly “religious” forms. This split mirrors the logic of modern secularization, whereby religion should be rationally differentiated from the broader social fabric, institutionalized, and delimited within its own discrete functional sphere. This article rethinks the putative rupture between Chinese Buddhism’s past and present incarnations. Through the prism of cinema, a technology that arrived on Chinese shores at the same moment as the Western concept of religion, I illuminate …

Accounting For The Eu Green Taxonomy: Exploring Its Concept, Data And Analytics, Lucia Alessi, Theodor Florian Cojoianu, Andreas G. F. Hoepner, Giovanna Michelon

Research Collection College of Integrative Studies

The European Union's Green Taxonomy has been used by corporations to account for and disclose hundreds of billions of Euros in capital expenditures. The aim of the taxonomy is to set a common and clear definition about which economic activities are most needed for the transition to a low-carbon economy, in line with the objectives of the European Green Deal. It is essential that academic research explores (a) to what extent the taxonomy is clearly understood, (b) if it impacts financial, environmental and societal outcomes, and (c) how it can be advanced. We review the nascent literature on this new …

Evaluating Urban Fire Vulnerability And Accessibility To Fire Stations And Hospitals In Austin, Texas, Akhil Mandalapu, Kijin Seong, Junfeng Jiao

Research Collection College of Integrative Studies

Anthropogenic climate change has increased the frequency and intensity of fires. Despite their widespread consequences, current research has largely overlooked urban fires and their associated vulnerability. This study seeks to identify patterns of fire vulnerability, map out areas with high fire vulnerability and limited access to fire stations and hospitals, and ultimately determine the factors contributing to increased fire incidents. Principal Component Analysis was used to develop a fire vulnerability index comprising variables capturing health status and socio-environmental factors. Enhanced 2-step floating catchment area (E2SFCA) analysis was conducted to determine relative accessibility to resources such as hospitals and fire stations. …