Digital Commons Network^™

Effect Of Impurities In Supercritical Co2 Environment On Steel Corrosion Behavior – An Overview, Shilla Rizqi Widianto, Johny Wahyuadi Soedarsono, Rini Riastuti, Badrul Munir

Journal of Materials Exploration and Findings

Carbon capture, utilization, and storage (CCUS) technology is one of the available technologies to reduce presence of greenhouse gasses. Implementation of CCUS technology strongly relates with the CO₂ transportation from the capturing facility to the storage in the geological reservoir. The most economical method for large-scale and long-distance CO₂ transportation is using pipeline in supercritical phase. Moreover, presence of impurities such as water, O₂, SO₂, H₂S, NO₂ may cause detrimental effect towards carbon steel pipeline. This paper intends to provide an initial information for supercritical CO₂ pipeline material selection, which …

Feasibility Study Of Using Energy Extracted From The Process Of Electrochemically Consumed Of Al 2024 For Powering Daily Used Electric Car, Yanuar Mohamad Marda, Rini Riastuti, Muhammad Hamka Ibrahim

Journal of Materials Exploration and Findings

Usage of green energy for transportation has become important due to the contribution of transportation activity to climate change. Electrochemical energy has been used as a source of green energy. The objective of this work is to evaluate sufficiency of energy provided by electrochemically consumed Al 2024 for supplying energy to daily used PHEV electric car. Study of previous articles, observation of typical amount of energy required, electrochemical galvanic cell experiments, and simple calculations have been conducted to determine produced energy feasibility. Electrical energy produced by consuming 340 gr of Al 2024 in galvanic cells has the total lifetime of …

Maintenance Notes To Improve The Reliability Of Wheel Flange Failure For Overhead Crane, Fakhri Burhanuddin, Akhmad Herman Yuwono

Journal of Materials Exploration and Findings

Overhead traveling cranes in the industry have utility workload classifications and require high standards of safety and reliability by mobilizing lifting and transporting capacity variants of steel products, equipment, and other supports. The crane wheels are the main support in moving the end carriage so that the crane can work according to its function. Failures in the operation and maintenance cycle have occurred. Therefore, proper repair and maintenance methods are highly needed to restore the original design function to its working integrity. Logic tree analysis was used to breakdown all causes of failure; thus, mitigation was performed by carrying out …

Hollow Connecting Rod Thin Wall Austempered Ductile Iron (Twadi) For Manufacturing Light Weight Components, Ricardina Freitas Da Silva, Bambang Suharno, Rianti Dewi Sulamet-Ariobimo

Journal of Materials Exploration and Findings

Efforts made by the automotive industry to reduce energy consumption have encouraged researchers to carry out various studies. One way is to make components lighter by casting thin wall austempered ductile iron (TWADI). Reducing the weight of components such as connecting rods (conrod) will result in lower energy consumption, but provided that these components still meet standards in terms of mechanical properties and microstructure or even exceed them. In this research, design optimization was applied to conrod by making the area I-beam zero mm (hollow), with hope that it can replace conrod Vespa PX-150. While the manufacturing process is divided …

Analysis Risk Based Inspection Api 581 On Lpg Spherical Tank At Pt. Xyz, Sigit Trahmawan, Eddy Sumarno Siradj, Jaka Fajar Fatriansyah

Journal of Materials Exploration and Findings

Liquified petroleum gas (LPG) spherical tanks are pressure vessel equipment for storing fuel gas products. The high pressure along with the fuel gas inside as flammable and combustible substance means that this equipment might result major accident hazard such as explosion, fires and environmental pollution. This study is aimed calculated and mitigate risk on 500 metric ton capacity LPG spherical tank using Risk-based inspection (RBI) analysis method that makes risk as its foundation. This RBI method uses quantitative analysis referring to API 581 to determine the risk of LPG Spherical Tank by determining the probability of failure (PoF) and the …

Using Neural Networks To Reconstruct Temperature From Fluorescent Data For Use In Bio-Microfluidics, Jacob G. Kullberg

Theses and Dissertations

It has been theorized that Quantum Dots (QD) can solve the temperature sensor issue with microfluidic devices. Quantum Dots are nano-sized semiconducting crystals with a radius of an excited electron-hole pair. When a QD is excited by a short wavelength light, the QD produces fluorescent light. As the temperature of the dot changes, the dot expands and shifts the fluorescent spectrum. Quantum Dots are small enough to be placed inside the microfluidic devices, and a spectrometer can measure the change in fluorescent data. This fluorescent data can be used to create fluorescent images corresponding to the QD temperature. These fluorescent …

Consent Behavior, Beliefs In Action: Longitudinal Associations Between Parenting And Adolescent Consent Beliefs And Behaviors, Corinne Archibald

Theses and Dissertations

More research is needed to consider how individual beliefs and socialization agents (i.e., parents) throughout adolescence inform consent-related sexual behaviors. Thus, the current study used an ecological systems approach to the theory of reasoned action (TRA) to examine how parents' consent beliefs were related to adolescents' internal and external consent behaviors, via their beliefs about the importance of consent. Having used longitudinal, nationally sampled data from the Healthy Sexuality Project, this study ran SEM path analysis models on 386 caregiver(s) and adolescents. Results found mothers' and fathers' consent beliefs were positively associated with adolescents' consent beliefs a year later and …

Health For All: Evaluating The Impact Of Equity-Centered Approaches On U.S. Healthcare Delivery, A Review Of Literature, Angela Leung

Master's Projects and Capstones

This literature review examines the impact of equity-centered approaches on issues affecting U.S. healthcare delivery—multiple databases to identify relevant literature that discussed equity-centered care, associated health disparities, and implementation strategies. Of the 490 search results, ten articles remained after refining the search results to include papers published between 2014-2024 and fit the specific inclusion and exclusion criteria. The key findings highlight the benefits of equity-centered approaches in improving the quality and accessibility issues affecting the U.S. healthcare system. Presently, the status of equity work is siloed between healthcare systems in the U.S., creating an unprecedented roadblock. Nonetheless, the findings suggest …

Diapers At The Doctors: A Qualitative Study Of Socioeconomic Needs And Diaper Insecurity, Brooke Kelly Kaplan

Master's Projects and Capstones

Abstract:

This study aimed to explore the perspectives of participants enrolled in a clinic-based diaper distribution program (Diapers at the Doctor) and to assess the impact of the program on their overall well-being and socioeconomic needs. The methods of this study consisted of in person interviews conducted in both English and Spanish. There were a total of 27 participants. The interview transcripts were coded and a thematic analysis was created by the research team. The findings indicate that programs such as Diapers at the Doctor (DATD) can serve as a crucial intervention to address broader socioeconomic needs, reducing the burden …

Perspectives On Telemedicine Across Urban, Rural And Remote Areas In The Philippines During The Covid-19 Pandemic, Noleen Fabian, Regine Ynez De Mesa, Carol Tan-Lim, Gillian Sandigan, Johanna Lopez, Arianna Maever Loreche, Leonila Dans, Zharie Benzon, Herbert Zabala, Josephine Sanchez, Nanette Sundiang, Mia Rey, Antonio Dans

Ateneo School of Medicine and Public Health Publications

Objectives

This study explored attitudes, subjective norms, and perceived behavioural control of participants across urban, rural and remote settings and examined intention-to-use telemedicine (defined in this study as remote patient-clinician consultations) during the COVID-19 pandemic.

Methods

This is a cross-sectional study. 12 focus group discussions were conducted with 60 diverse telemedicine user and non-user participants across 3 study settings. Analysis of responses was done to understand the attitudes, norms and perceived behavioural control of participants. This explored the relationship between the aforementioned factors and intention to use.

Results

Both users and non-users of telemedicine relayed that the benefits of telemedicine …

Teaching Forensic Paraphilia In Undergraduate And Graduate Human Sexuality: A Note From The Field, Nafees Alam

Social Work Faculty Publications

Part of being a social work professor is teaching human sexuality, including paraphilias. Approaching such emotionally charged topics intellectually can be particularly difficult when teaching at undergraduate and graduate levels in higher education. Students coming from different parts of the nation, different parts of the planet; students coming from a diverse array of ethical and ideological backgrounds, can take these lessons in different ways, ways in which professors may never intend. Employing a point-counterpoint philosophy to explore the ethics related to sexual diversity and inclusion can encourage students to consider counterpoints to their points of view, focused not on agreement, …

False Start On Nil: Public And Private Law Should Treat College Athletes Like Any Other Student, Jodi Balsam

Texas A&M Law Review

For most of its regulatory existence, the National Collegiate Athletic Association (“NCAA”) has preached the importance of integrating intercollegiate athletics into the campus culture and educational mission, insisting that athletes be an integral part of the student body. A core element of this creed was the amateurism principle—college athletes must not be paid or professionalized. To preserve and enforce the amateurism principle, the NCAA and its divisions promulgated a vast and complex regulatory scheme that paradoxically resulted in segregating, rather than integrating, athletes into campus life. While nonathlete students enjoy increasing autonomy to pursue expressive and economic activity, athletes are …

Minimising The Risk: Teen Perspectives On Sexual Choking In Pornography, Giselle Woodley, Kelly Jaunzems

Research outputs 2022 to 2026

Sexual choking / strangulation encompasses a range of practices where pressure is applied to the neck to restrict air or blood flow during a sexual encounter. While choking is most commonly associated with the application of hands around a person’s neck, other limbs or ligatures, such as the forearm or rope, may also be used (Herbenick et al., Frequency 3122; Herbenick et al., Prevalence 1059). This article will predominantly use the term “choking” or “sexual choking” to match teen vernacular and public discourse. These terms, however, may be used interchangeably with other more context-specific terms used in the literature such …

Experimental And Fe Investigations Of Backfill Cover On Large-Diameter Grp Pipes, Abdulmuttalib I. Said, Yahya Jabbar Hussein, Mohammed Hazim Mohammed, Abbas A. Allawi

Faculty Publications

This paper presents experimental investigations on buried Glass Reinforced Plastic (GRP) pipes with a diameter of 1400 mm. The tested pipes were buried in dense, gravelly sand and subjected to traffic loads to study the effects of backfill cover on pipe deflection. The experimental program included tests on three GRP pipes with backfill covers of 100 cm, 75 cm, and 50 cm. The maximum traffic loads applied to the pipe–soil system corresponded to Iraqi Truck Type 3 (AASHTO Htype). Vertical deflections of the pipes were monitored during the application of these loads. The experimental results showed that, as the backfill …

Cover And Content

Turkish Journal of Physics

No abstract provided.

Digital Ethics Of Artificial Intelligence (Ai) In Saudi Arabia And United Arab Emirates, Ella Gorian, Noor Dzuhaidah Osman

Open Access archive

Artificial intelligence (AI) poses a serious challenge for data protection and ethics. Whereas ethics is based on the moral and religious understanding of good and evil, adherence to religious norms is vital for many nations. In Islam, privacy is a fundamental value that is deeply rooted in the principles of Shariah law and focuses on the dignity of the individual, personal boundaries and moral behaviour. Therefore, the use of AI technologies by Islamic nations raises concerns about the compatibility of these traditional privacy norms with ethical frameworks for AI. To ensure that the field of AI is not only innovative …

Drone Attacks And The Failure Of Securitisation In Pakistan, Satvinder S. Juss, Sahib S. Juss

Notre Dame Journal of International & Comparative Law

No abstract provided.

Perceptions Of Learning Designers On Challenges Integrating Analytics To Improve Corporate Online Education, Marco D'Alessio

Walden Dissertations and Doctoral Studies

Learning designers face challenges integrating learning analytics (LA) when designing learner-content interactions in corporate online education. The quality of the learning design directly affects learners’ engagement and impacts the transfer of learning at work. This qualitative study aimed to explore the perspectives of experienced learning designers on the challenges of integrating LA when designing corporate online education content. The conceptual framework for this study was Engeström’s activity theory. The research question guiding the study explored how experienced learning designers in corporate online education perceived the challenges of integrating LA to support data-informed decision-making when designing learner-content interactions. Semistructured interviews of …

Waste Management Process And Malaria-Induced Child Mortality In Côte D’Ivoire., Kouame N'Guessan

Walden Dissertations and Doctoral Studies

Malaria-induced child mortality is a Sub-Saharan African phenomenon, and Côte d'Ivoire, in West Africa, has one of the highest rates. This general qualitative study investigates waste management as a potential factor of malaria-induced child mortality to inform policy changes and fill a gap in the body of knowledge. The study is grounded in Skocpol's policy feedback theoretical framework. The research question explored aspects of waste management in Côte d'Ivoire which contribute to the high rate of malaria-induced child mortality. Eighteen participants, equally divided into three groups, were purposely recruited via email and WhatsApp messages for semi-structured interviews using a smartphone …

Nigerian Brewery Industry Leaders' Perceptions Of Emotional Intelligence As A Strategy To Improve Employee Job Satisfaction And Organizational Performance, Funso Ayeni

Walden Dissertations and Doctoral Studies

Employee job dissatisfaction and turnover rates increase when organizational leaders and managers have low emotional intelligence (EI). Nigerian business leaders have not placed significant importance on EI skills which has resulted in higher turnover and worse business performance. The purpose of this qualitative single-case study was to explore Nigerian brewing industry leaders’ perceptions of effectively applying EI skills to improve employee job satisfaction and organizational performance. Goleman's emotional competencies model and Herzberg’s two-factor theory provided the conceptual framework. The research questions focused on understanding Nigerian brewing industry leaders’ perceptions of effectively applying EI skills. Purposive sampling was used to identify …

Impact Of Veteran Treatment Courts On Lived Experiences Of Male Military Veterans With Misdemeanor Criminal Records, Verona Ann Cabbagestalk

Walden Dissertations and Doctoral Studies

Support for criminal justice reform is growing due to scrutiny of high incarceration rates and recidivism. Military veterans within the criminal justice system are included in correctional populations. Veterans’ unique experiences involving combat trauma require alternative treatments to reduce their involvement with the justice system. The purpose of this phenomenological qualitative study was to explore lived experiences of male military veterans with misdemeanor criminal records. This phenomenological qualitative study involved using the homecoming theory to explore lived experiences of male military veterans with criminal records. Research questions related to understanding lived veteran experiences that led to their involvement with the …

Essential Resource Barriers And Perceived Implications Among Military Parents Of Autistic Children, Ann Bayron-Freay

Walden Dissertations and Doctoral Studies

Elevated mental health issues and health care accessibility challenges may be exacerbated by the stressors experienced by military parents of autistic children. The purpose of this interpretative phenomenological analysis was to explore how military parents with autistic children experienced and perceived essential resource barriers. Parent perceptions of the obstacles they experienced with essential resource accessibility led to significant difficulties being identified. The stress process model was used to frame the concepts in this research. Data were collected from semistructured interviews with eight active duty or recently retired military parents who had at least one autistic child during their service. Themes …

How Did The Covid-19 Pandemic Change Cigarette Smoking Behavior?, Jason Semprini

Public Health

Background: Cigarette smoking is the leading cause of preventable death in the United States. Although smoking rates have been declining, it is unclear how the COVID-19 pandemic impacted smoking behaviors. Methods: With population-based data from the Behavioral Risk Factor Surveillance System (2010–2023), we will analyze four outcomes: (1) currently smoking, (2) started smoking in the past year, (3) number of cigarettes per day, and (4) quit smoking in the past year. By estimating a two-way fixed effect regression model to account for state-level factors and temporal trends, this study identifies the effect of exposure to the COVID-19 pandemic by comparing …

Letter From The Editor, Barrett Cole

Notre Dame Journal of International & Comparative Law

No abstract provided.

A Personalized Chat Application For Career Profiling: A Case Study, Dhiraj Choithramani

Harrisburg University Dissertations and Theses

Artificial intelligence (AI) has rapidly transformed numerous fields over the past decade, significantly influencing industries such as software engineering and computer science. One of the most impactful developments in this area is the rise of AI-driven chat applications, which have evolved from simple, rule-based systems to sophisticated platforms capable of simulating human-like conversations. These chatbots are increasingly being utilized across various sectors, including customer service, healthcare, and education, to provide users with quick, personalized responses. This research paper presents a case study of a personalized chat application designed specifically for career profiling, leveraging advanced AI technologies to deliver contextually relevant …

Genomic, Morphological And Physiological Data Support Fast Ecotypic Differentiation And Incipient Speciation In An Alpine Diving Beetle, Susana Pallares, Joaquin Ortego, Jose Antonio Carbonell, Eduardo Franco-Fuentes, David T. Bilton, Andres Millan, Pedro Abellan

School of Biological and Marine Sciences

An intricate interplay between evolutionary and demographic processes has frequently resulted in complex patterns of genetic and phenotypic diversity in alpine lineages, posing serious challenges to species delimitation and biodiversity conservation planning. Here we integrate genomic data, geometric morphometric analyses and thermal tolerance experiments to explore the role of Pleistocene climatic changes and adaptation to alpine environments on patterns of genomic and phenotypic variation in diving beetles from the taxonomically complex Agabus bipustulatus species group. Genetic structure and phylogenomic analyses revealed the presence of three geographically cohesive lineages, two representing trans-Palearctic and Iberian populations of the elevation-generalist A. bipustulatus and …

The Effects Of Simulated Predation And Nursery Structure On Post-Outplant Survival And Growth Of Sexual Juveniles Of Six Caribbean Coral Species, Jarrod Little

All HCAS Student Capstones, Theses, and Dissertations

Over the past few decades, increasing frequency and severity of direct and indirect anthropogenic stressors have resulted in reef degradation and decreased coral cover and diversity. In South Florida, coral propagation ex situ has gained popularity as a means to restore coral cover. Outplanting sexually propagated corals on the reef is particularly important as it contributes to greater genetic diversity and potentially overall reef resilience. However, these corals typically experience high levels of predation following outplanting, significantly reducing coral survival, and thus constitute a major bottleneck to the success of restoration efforts. This study assessed if simulated predation events on …

Identification Of Genetic Subtypes In Follicular Lymphoma, Victoria Shelton, Brad Kahl, Et Al.

2020-Current year OA Pubs

Follicular lymphoma (FL) exhibits considerable variability in biological features and clinical trajectories across patients. To dissect the diversity of FL, we utilized a Bernoulli mixture model to identify genetic subtypes in 713 pre-treatment tumor tissue samples. Our analysis revealed the existence of five subtypes with unique genetic profiles that correlated with clinicopathological characteristics. The clusters were enriched in specific mutations as follows: CS (CREBBP and STAT6), TT (TNFAIP3 and TP53), GM (GNA13 and MEF2B), Q (quiescent, for low mutation burden), and AR (mutations of mTOR pathway-related genes). The subtype Q was enriched for patients with stage I disease and associated …

Gnsi Decision Brief: Cracks In Our Foundation: How Neglected Bridges Threaten National Security, Heather Ward, Kathleen Curp

GNSI Decision Briefs

The poor condition of U.S. infrastructure merits wider discussion, as its implications go beyond public safety and economic operations. The Department of Homeland Security (DHS) identified four critical infrastructure areas—energy and water, facilities, information and communication technology, and transportation—as lifeline systems essential for ensuring public safety, economic security, and national security.

The U.S. interstate highway system, created by the 1956 National Interstate and Defense Highways Act under President Dwight D. Eisenhower, has been vital for national security.ii It facilitates troop movements and aids in the evacuation of large cities during emergencies. Additionally, Military Power Projection Platforms (PPP) rely on roads …

Never Going To Let You Down: Preventing Predictive Shrinkage Via The Strong-R Assessment Method, Zachary Hamilton, Alex Kigerl, Baylee Allen-Flores, John Ursino, Amber Krushas

Criminology and Criminal Justice Faculty Publications

Risk-needs assessments (RNAs) are an evidence-based practice used by practitioners to assign supervision and programming. While foundational to day-to-day practices, these tools are typically applied ‘off-the shelf,’ and are mistakenly assumed to demonstrate equivalent prediction accuracy regardless of location or population. Although researchers and providers are aware these tools experience performance shrinkage, the issue is commonly ignored. In 2016 the Tennessee Department of Correction (TDOC) collaborated with the developers of the Static Risk Offender Needs Guide – Revised (STRONG-R) to create a staged development of a locally developed risk needs assessment. Using propensity score matching, a proxy sample was used …