Digital Commons Network^™

Experimental Study Of An Automotive Cooling System With A Mechatronic Control System, Avaz Israilovich Yangibayev

Technical science and innovation

This article presents the results of experimental investigations of a passenger car engine cooling system equipped with a mechatronic control system. The experiments were conducted on an intelligent hardware-software laboratory test bench developed using original components of a Chevrolet Gentra vehicle. The study determined the thermodynamic response characteristics and energy performance of the system under varying ambient temperatures (-10 to +50 °C) and engine thermal loads. The experimental results demonstrated that the mechatronic system can maintain coolant temperature with minimal fluctuation amplitude, ensure smooth transient processes, and significantly reduce electrical energy consumption. Based on the obtained results, scientific and practical …

Climate-Responsive Design For Sustainable Construction: Passive Strategies In Domestic Architecture Supporting Sustainability, Nahed Chakouf

All Works

This study explores climate-responsive design in domestic architecture, focusing on the application and effectiveness of passive strategies across various climatic regions, including the UK, hot-arid, tropical, and cold climates. A qualitative comparative case study method was used to explore different passive design strategies, integration of sustainability, procurement, the coordination of stakeholders, and compliance with regulations in residential architectural projects under varying climate conditions. Drawing from a combination of historical case studies and original architectural projects, the research evaluates how spatial configuration, material selection, solar orientation, shading, ventilation, and insulation are optimized to achieve thermal comfort and energy efficiency. In temperate …

Immuno-Endocrine And Inflammatory Modifications In Human Toxoplasmosis: Diagnostic And Predictive Value Of Progesterone And Prostaglandin, Murtadha Hadi Ajmi

Muthanna Medical Journal

Toxoplasma gondii is one of the world's most common parasitic infections, with well-known effects on the immune system but poorly understood effects on the endocrine system and inflammation. Emerging literature indicates that the parasite alters the hormonal balance of the host, which may play a role in the development of disease, inflammation and poor health outcomes. But the diagnostic and predictive value of these immuno-endocrine changes in human toxoplasmosis remains poorly understood. In this case-control study, 45 patients with toxoplasmosis and 28 healthy controls were enrolled. White blood cell count, packed cell volume, erythrocyte sedimentation rate, progesterone and prostaglandin were …

The Role Of Cross-Cultural Connections In Leadership Identity Development: From Entry To Embodiment, Jennifer Okoliko

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Leadership identity development has received considerable attention in the literature, but most of what we know comes from studies focused on students in formal leadership programs or on the mentee’s side of mentoring relationships. Less understood is the mentor's leadership identity development journey and the role of culture in that process.

This study explores how mentors from low power distance cultural backgrounds who engaged with mentees from high power distance cultural backgrounds interpreted the impact of those experiences on their leadership identity development.

Using Interpretive Phenomenological Analysis (IPA), I conducted two semi-structured interviews with ten participants recruited from different formal …

Perkembangan Visual Motif Waru Pada Batik Tulis Namiroh Sidoarjo, Muhammad Habib Rafi Asyhari, Sumarwahyudi Sumarwahyudi

Journal of Language, Literature, and Arts

This study aims to examine the visual development of the Waru motif in Batik Tulis Namiroh Sidoarjo over time, identify the factors influencing these changes, and analyze the visual elements of batik that indicate such development. The visual development of the motif was analyzed chronologically based on different time periods by examining changes in form, color, and composition from the perspective of visual aesthetics. This research employed a descriptive qualitative method with an art and cultural approach. Data were collected through interviews, observations, and documentation and analyzed using the stages of data reduction, data presentation, and conclusion drawing. The findings …

Rapid Recovery Of Peripheral Oxygen Saturation In Hypoxic Covid-19 Patients With Ivermectin/Doxycycline/Zinc Multidrug Therapy, Sabine Hazan, Adriana C. Vidal, Eleftherios Gkioulekas, Anoja W. Gunaratne, Sibaish Dolai, Robert L. Clancy, Peter A. Mccullough, Thomas J. Borody

School of Mathematical & Statistical Sciences Faculty Publications

Several combination therapies for the early outpatient treatment of COVID-19 were proposed by independent research groups at the onset of the pandemic during 2020 and 2021. In this observational study, we report on the outcomes of an off-label triple combination therapy, consisting of ivermectin, doxycycline, and zinc, with adjunct vitamin C and D3 supplementation, which was used on high-risk COVID-19 patients. These patients refused an initial recommendation to seek inpatient care, despite a high-risk presentation compounded with one or more comorbidities and/or severe hypoxia. Telemedicine was used to administer personalized treatment to patients at home, who did not have access …

Strategic Leverage Points For Effective Watershed Governance: A Micmac Structural Analysis Approach, Ivan Taslim, Sambas Basuni, Moh. Yanuar Jarwadi Purwanto, I Putu Santikayasa

Journal of Environmental Science and Sustainable Development

Over the past two decades, watershed governance in Indonesia has been challenged by rapid land-use change, fragmented institutions, and limited integration of scientific evidence into policy. Previous studies have primarily evaluated watershed sustainability using hydrological or socio-economic indicators, whereas the structural relationships among governance, socio-economic, and biophysical factors remain insufficiently explored. To address this gap, this study applies the Matrix of Cross-Impact Multiplications Applied to Classification (MICMAC) method to examine direct and indirect relationships among watershed governance factors. A pentahelix stakeholder analysis involving government, academia, non-governmental organizations, media, and industry was conducted to evaluate 37 factors identified through a systematic …

Financial Analysis Tool (Ct-Ft) For Western North Carolina Christmas Tree Growers, Sam Blumenfeld, Solomon Ghezehei, Justin G.A. Whitehill, Elizabeth G. Nichols

Journal of Extension

Western North Carolina is a major national Christmas tree (CT) production region, yet the CT industry faces numerous challenges that threaten its financial sustainability. Little economic research has been done, and limited decision-making tools exist to assist producers, Extension agents, and associated industry stakeholders. We developed an Excel-based financial analysis tool (CT-FT) to assist small and midsize wholesale CT producers in operational planning and financial assessment. The publicly available financial tools will enable CT growers to better understand their finances and operations, interact with financial stakeholders, assess alternative management scenarios, and track yearly costs to improve operational financial sustainability.

Adapting And Delivering An Extension Diabetes Self-Management Support Program To Serve The Hispanic Community, Camden Bryan, Samantha Kanny, Christina Dietz, Danielle Mcfall, Michelle Parisi, Michelle Stancil, Johanna Bruen, Rhonda Matthews, Windsor W Sherrill

Journal of Extension

Expanding Extension education programs to serve the Hispanic community will be important as this population continues to grow. The rate of diabetes is higher among the Hispanic population than the non-Hispanic population; however, the barriers to implementing a health education program and recruiting participants are plentiful. This paper highlights the work conducted by the Clemson Cooperative Extension Service, in partnership with organizations across South Carolina, to adapt and deliver the Health Extension for Diabetes program to the Hispanic community. It offers insights into effective strategies for program adaptation, recruitment, and delivery that agents can use to overcome barriers and increase …

Assessing Knowledge Levels And Learning Preferences Among Organic Grain Farmers And Professionals; The Experience Of The University Of Wisconsin Ograin Program, Lauren Asprooth, Claire G Stedden, Evelyn Hammond, Ayse Okur, Erin Silva

Journal of Extension

With lagging domestic supplies of organic grains, transitioning from conventional to organic grain production is needed, but can be a daunting challenge for farmers. The OGRAIN program began at the University of Wisconsin–Madison in 2015 to support increased organic grain production in the Midwest. We surveyed 429 OGRAIN participants to assess the most accessed resources, areas of knowledge change, and areas for program improvement. Participants highlighted the importance of networking and the need for additional marketing resources. Differences were found in programming preferences by organic farming experience. These results can improve our understanding of how to best support organic grain …

Transformative Phygital Service Research (Tpsr): An Agenda For Future Research, Saadia Shabnam, Sanjit K. Roy, Yonathan Silvain Roten, Gaganpreet Singh, Taewon Suh, Hairong Li

Research outputs 2022 to 2026

Purpose – This paper aims to develop a transformative phygital service research (TPSR) framework to explain how hybrid physical-digital service systems shape consumer well-being, autonomy, dignity and inclusion. While prior phygital service research (PSR) advances understanding of hybrid experiences and human-centred ecosystems, key ambiguities persist around agency, governance and interpretive labour in algorithmically mediated interactions. Existing frameworks address value co-creation but lack clarity on how digitally enforced rules and redistributed labour drive transformation. TPSR addresses this gap by theorising contradiction-driven processes through which human–AI arrangements and socio-technical dynamics produce both empowering and erosive outcomes in phygital service environments. Design/methodology/approach – …

Optimization Of Aluminum Coating Deposition Parameters To Enhance The Performance Of Automotive Headlamps, Gulirano Saidakhmedova, Giovanni Maizza

Technical science and innovation

The paper investigates the influence of the optical characteristics of functional coatings applied to automotive reflectors on vehicle active safety parameters, with a focus on the range and intensity of road illumination. The study examines the mathematical relationship between the maximum luminous intensity of a headlamp, the object detection distance, and the reflection coefficient  of an aluminium layer deposited via vacuum thermal evaporation. The main factors driving the degradation of surface reflectivity (including oxidation, thermal degradation of the base coat, and surface roughness) are analysed. It is demonstrated that a decrease in the reflection coefficient during operation directly impairs the …

Use Of New Improved Methods For Assessing The Engineering-Geological Characteristics Of Deposits By Depth (Using The Example Of The Akba Deposit)., Elboy Shavkatovich Qurbonov Salom, Abduboqib Djalilovich Karimov, Yokub Yarash Ugli Isomiddinov

Technical science and innovation

The article examines the fracturing and filtration properties of rocks in boreholes, rock outcrops, and underground mine workings at the Akba gold deposit. Based on the results of hydrogeological and engineering-geological studies, methods that fully meet modern requirements were used, the values of the RMR rating of rocks and the indicators of the qualitative content of RQD rocks, as well as the intervals of their changes, were studied, as a result of which it became possible to quickly and accurately assess the strength state of the rock mass of the deposit territory by depth and area.

Investigation Of Energy Efficiency Of An Autonomous Mobile Photovoltaic-Thermal (Pv/T) System With A Polycarbonate Absorber, Sanjar Kodir Ugli Shoguchkarov, Anvar Rakhmat Ugli Rakhmatov, Rushana Husen Kizi Abdullaeva, Orazbek Maratbay Ugli Temirbaev

Technical science and innovation

This study analyzes the enhancement of energy efficiency in photovoltaic-thermal (PV/T) systems, which enable the simultaneous generation of electrical and thermal energy from solar radiation. The research focus is an autonomous mobile unit based on multi-channel polycarbonate heat collectors with a hydraulic diameter of 8 mm, characterized by their lightweight nature and superior corrosion resistance compared to conventional metal absorbers. Experimental investigations were conducted at the solar testing field of the Physical-Technical Institute of the Academy of Sciences of Uzbekistan under extreme continental climatic conditions to determine the system's stable thermophysical indicators. The results demonstrated that active water cooling using …

Adaptive – Compositional Method For Coordinating Subsystems At Different Levels In Hierarchical Control Systems, Husan Zakirovich Igamberdiyev, Uktam Farxodovich Mamirov Mr, Inomjon Ilxom Ugli Abdukaxxarov Mr

Technical science and innovation

This paper examines the problem of synthesizing algorithms for the composition of subsystems at various levels within complex hierarchical control systems under conditions of uncertainty and resource constraints. It is demonstrated that classical composition algorithms, which rely on the intersection of admissible sets and the use of local optimality criteria, suffer from several significant drawbacks. These include a combinatorial increase in complexity, dependence on the expert selection of parameters, and limited applicability in dynamic environments. To overcome these shortcomings, an adaptive-compositional method is proposed. This method is based on the dynamic recalculation of coordination parameters, the integration of model predictive …

Technology For Obtaining Aliphatic Amines Based On Liquid By-Products Of Polymerization Processes, Kamila Sabirbaevna Allanazarova, Ulugbek Komiljonovich Urinov

Technical science and innovation

Polymerization processes generate considerable amounts of liquid secondary by-products, which are often underutilized despite their significant chemical potential. Addressing the need for sustainable resource use, this study aims to develop a technological method for converting these by-products into valuable aliphatic amines. The experimental approach involved the pre-treatment of liquid polymerization by-products through fractional distillation to isolate C3–C10 fractions, followed by catalytic amination using Raney nickel under controlled temperature (160°C) and pressure (12 atm) conditions. Analytical methods including gas chromatography-mass spectrometry (GC-MS) and Fourier-transform infrared spectroscopy (FTIR) were employed to characterize the reaction products. The results demonstrated the successful formation of …

Sales Innovativeness Climate And B2b Salesperson Performance: The Roles Of Persistence, Entrepreneurial Self-Efficacy And Creative Selling, John Charles Peter Edwards, Steven Peter D'Alessandro, Morgan Miles

Research outputs 2022 to 2026

Purpose: Persistence is widely viewed as essential for success in business to business (B2B) selling, yet it remains unclear how persistence translates into higher sales performance when selling requires experimentation and novel customer solutions. This study examines whether a perceived sales innovativeness climate enables persistence and entrepreneurial self-efficacy (ESE) and, in turn, creative selling, driving B2B sales performance.

Design/methodology/approach: An online survey of 346 US-based B2B salespeople was analyzed using partial least squares structural equation modelling (PLS-SEM).

Findings: The perceived sales-innovativeness climate is positively associated with ESE, persistence, and sales performance. Persistence is positively related to sales performance and ESE, …

Analisis Tingkat Kognitif Übungen Dan Aufgaben Dalam Buku Ajar Netzwerk Neu A1 Berdasarkan Taksonomi Solo, Mutiara Feby Sufriono, Dewi Kartika Ardiyani

Journal of Language, Literature, and Arts

This study aims to describe the characteristics of Übungen and Aufgaben based on the cognitive levels of the SOLO Taxonomy in the Kursbuch Netzwerk Neu A1 textbook. A qualitative descriptive method with a content analysis approach was employed. The research procedures included developing documentation instruments, coding the data, preparing validation instruments, validating the findings through expert judgment, analysing the validated data, and drawing conclusions. The findings indicate that Übungen in the earlier units are predominantly classified at the unistructural level, whereas those in the subsequent units are mainly categorised as multistructural. Meanwhile, Aufgaben are predominantly classified at the relational level, …

Representasi Pendidikan Formal Dalam Pengambilan Keputusan Tokoh Pada Serial Berbahasa Jerman Biohackers, Widya Agustina, Edy Hidayat

Journal of Language, Literature, and Arts

This study aims to describe the representation of formal education in the German-language series Biohackers and to explain how the characters' decision-making contributes to plot development. The study employed a descriptive qualitative approach using content analysis. The data consisted of dialogues, scenes, actions, and situations related to the characters' academic backgrounds and decision-making in Biohackers Season 1, Episode 3. Data were collected through documentation and non-participant observation by repeatedly watching the selected episode. Data analysis followed six stages of content analysis: unitizing, sampling, recording, reducing, inferring, and narrating. The findings reveal that formal education is represented through the characters' academic …

Attracting Extension Program Participants: Tips For Extension Educators, Suzanna R. Windon, Theodore R. Alter

Journal of Extension

Extension educators hold a competitive advantage by delivering educational programs tailored to their communities' unique circumstances and perspectives. This article enhances the understanding of the proactive Extension program model and contributes to the literature on Extension educators' competencies. It offers tips for attracting participants to Extension programs and sustaining their engagement. Additionally, the proposed rubric is a practical tool for educators to assess and ensure that all aspects of their programs are well-prepared for successful implementation and meaningful participant involvement.

Building Academic-Community Partnerships To Reduce Rural Health Disparities, Latoya J. O'Neal, Marcia Brown, Biswadeep Dhar, Noemi Reyes, Brittany Blake, John Diaz, Karla Shelnutt

Journal of Extension

Rural health disparities are increasing in the United States. Academic–community partnerships between Extension and faith-based organizations present a unique opportunity to improve health outcomes in rural areas. The main objective of this study was to identify the perceived barriers, needs, and strategies for implementing effective and sustainable health promotion programs through Extension and faith community partnerships. We conducted semi-structured interviews with Extension professionals and faith community leaders (N = 15). Our results suggest that academic–community partnerships could leverage shared needs, resources, and strategies to serve as a model for reducing health disparities among low-income, minoritized adults residing in rural …

Survey Increases Understanding Of United States Sweetpotato Producer Clean Seed Needs, Lorin Harvey, Mark Shankle, Rachael Carter, Kelsey Harvey

Journal of Extension

A needs assessment of sweetpotato producers across the United States was conducted as part of a strategic planning process to enhance the applicability of research and education. A national survey and a 2-day grant-planning workshop were also used to engage stakeholders to develop a USDA–NIFA Specialty Crop Research Initiative Proposal to improve and promote clean seed programs. Ninety-five U.S. sweetpotato producers completed the survey, representing more than 73,000 acres of production. Therefore, the survey respondents are estimated to account for nearly half of U.S. sweetpotato production, underscoring the importance and relevance of the results.

"In My Community, If You're An Addict, People Don't Just Look Down On You For The Drugs, But For Being Black, Too": Black And Latine Methadone Patients' Experiences Around Addiction, Methadone Treatment, And Intersectional Stigma, A.M. Ward, T. Wood, Donny Gerke, Suzan Walters, J. Williams, D. Clement, M. Katandu, D. Ferguson, K. Morrison, Yahya Alnashri, Benjamin Grin, Jessica Jaiswal

Faculty and Staff Publications

Background: Stigma surrounding opioid use disorder (OUD) and medications for opioid use disorder (MOUD), such as methadone, remains a significant barrier to care, despite the effectiveness of MOUD. Intersectional stigma tied to addiction, methadone treatment, structural racism, and classism disproportionately affects minoritized people with OUD, with direct consequences for health and wellbeing. Less is known about how Black and Latine people in methadone treatment think about and experience various dimensions of stigma related to addiction and the social determinants of health.

Methods: Semi-structured interviews were conducted with Black and Latine patients from two Newark, NJ, United States, methadone clinics (n …

Patients, Not Lab Values: Ethical Reflections On The Limits Of Reductionist Biology, Kody Park, Tai Metzger, Sung-Ki Lee, Abdullah Jalal, Christine Lin, Jasmanet Chahal, Kacie Park

Student Publications

No abstract provided.

Ideology In Translating Indonesian Political News Headlines From Indonesian To English: A Cda Study Of Antara, Ferina A. Lestari, Haru Deliana Dewi

Journal of Language, Literature, and Arts

This study examines how ideology is constructed in the translation of Indonesian political news headlines into English by ANTARA News Agency. Moving beyond the notion of translation as mere equivalence, it conceptualizes headline translation as a process of discursive recontextualization shaped by institutional practices and audience design. Using a qualitative comparative approach, the study analyses 20 pairs of Indonesian English political headlines. The analysis implied Fairclough’s (1995) three-dimensional Critical Discourse Analysis (CDA) framework. The dimensional focusing on textual features, discourse practice, and social practice. The findings reveal transformations, including omission of culturally specific details, addition of evaluative elements, lexical reframing, …

The Representation Of Heroism In Titanic (1997): A Hero's Journey Analysis Using Christopher Vogler's Framework, Andi Muhammad Ilham Hanif Inwan, Kukuh Prayitno Subagyo

Journal of Language, Literature, and Arts

This study examines the representation of heroism in Titanic (1997) by applying Christopher Vogler's Hero's Journey framework from a formalist perspective. The analysis focuses on the film's narrative structure and explores how heroism is constructed through character functions rather than through conventional heroic outcomes. Particular attention is given to Jack Dawson, who is interpreted as a sacrificial hero whose journey is fulfilled symbolically rather than through physical survival. Using qualitative film analysis, this study examines key scenes, dialogues, and narrative events to identify the stages of the Hero's Journey embodied by Jack Dawson. The findings reveal that, although Jack does …

Histamine–Dao Axis In Migraine: Pathophysiology, Genetic Insights, Clinical Evidence, And Therapeutic Implications, Norhan Bassim Jassim, Abdulkadir M. N. Jassim

Muthanna Medical Journal

Migraine is a common neurological illness marked by recurring headache episodes, followed by other neurological and gastrointestinal symptoms. While the precise pathophysiology of migraine is not fully elucidated, increasing evidence indicates that disruptions in histamine metabolism may significantly contribute to the onset of migraines. Diamine oxidase (DAO) is a crucial enzyme that facilitates the extracellular breakdown of histamine, especially inside the gastrointestinal system. Decreased DAO activity can result in histamine buildup, potentially provoking migraine attacks via the stimulation of the trigeminovascular system and the facilitation of neurogenic inflammation. Recent investigations reveal that a significant percentage of migraine patients demonstrate reduced …

Dose-Dependent Toxicological Effects Of Carbon Tetrachloride (Ccl4) In Male Wistar Albino Rats (Rattus Norvegicus): Biochemical, Hematological, And Histopathological Assessment, Rasha Ibrahim Salman

Muthanna Medical Journal

Laboratory animals, especially rodents, are essential models for biomedical research, and especially for studies of disease mechanisms. The current study was carried out at Al-Kut animal facility of College of Science, University of Wasit, Al-Kut, Iraq under controlled experimental conditions in a systematic evaluation of the physiological, biochemical and histopathological responses of laboratory rats (Rattus norvegicus). Fifty male Wistar albino rats were used and divided into five groups of 10 animals each and treated with different doses of carbon tetrachloride (CCl₄), a well-established hepatotoxic agent (purity ≥ 99%), for 8 weeks. The environmental conditions such as temperature, humidity, …

Development And Evaluation Of A Community-Based Water Quality Monitoring Program In Mississippi, Beth H. Baker, Lily Langstaff, Mona Dominguez, Sergio Ruiz-Cordova, Eric Sparks, Madison Gnoose

Journal of Extension

Community-based water monitoring (CBWM) programs provide mechanisms for education and water quality data collection. In this pilot program, we adapted a long-standing CBWM program from Alabama to Mississippi. We assessed the efficacy of the initial program implementation in promoting changes in knowledge, skills, and behavior of participants. Results indicated that 94% of survey respondents reported increased knowledge, 96% reported learning a new skill, and 99% reported an intention to start monitoring, but only 33% engaged in active monitoring. This evaluation summary offers data-driven strategies to expand and adopt CBWM into Extension curricula that build knowledge, skills, and capacity for community …

Collaboration Is Key: Improving And Increasing Inclusive Programming Through Partnership, Brandy D James, Elizabeth Sparks, Fiona S Davey, Burris Duncan, Nadine Chau

Journal of Extension

Collaborative partnerships between Cooperative Extension offices and the University Centers for Excellence in Developmental Disabilities are a key opportunity to assess and improve accessible, inclusive programming for the communities they serve. This article outlines such a partnership between local Extension, the local UCEDD, and the local Network for Down Syndrome. It reviews their collaborative process and the resulting pilot program—-an inclusive cooking class. Evaluations of the program and collaborative process demonstrate that the partners' collaboration enabled organizational capacity building and improved service provision for persons with Down Syndrome.