Digital Commons Network^™

Techno-Economic Analysis Of Captive Solar Power Systems For Tanzania’S Manufacturing Sector: Barriers, Opportunities, And Feasibility, Edson Uhale, Sarah P. Ayeng'o

Tanzania Journal of Engineering and Technology (TJET)

This study provides a comprehensive techno-economic analysis of the barriers, opportunities, and feasibility of adopting captive solar photovoltaic (PV) systems in Tanzania’s industrial manufacturing sector. Despite Tanzania’s high solar irradiation potential, averaging 4.5 to 7.0 kWh/m²/day, the uptake of captive solar systems remains minimal, with only 2.3 percent of surveyed firms currently using solar energy, primarily for non-productive uses such as security lighting. Using a mixed-methods approach, data were collected from 43 manufacturing firms in the Dar es Salaam and Pwani regions through structured questionnaires, supported by PVSyst simulations and financial modelling to assess two system configurations: grid-connected PV systems …

Spatial Distribution Of Meteorological Parameters Over Suez Gulf, Egypt, Mahmoud Ibrahium El Saman

Journal of King Abdulaziz University: Meteorology, Environment and Arid Land Agriculture

The Gulf of Suez is a large, elongated Gulf bordered by the Sinai Peninsula from the east and the eastern desert from the west. It extends for about 300 km with about 50 km width at its widest point. Gulf is surrounded by the Red Sea Mountains from both sides. The meteorological conditions (Air temperature, relative humidity, pressure, wind speed and direction and the rain), were investigated periodically from beginning of January 2021 to ultimately December 2021. The obtained results illustrated that the Gulf of Suez can be divided into three different metrological zones, Zone I includes the northern region …

Effect Of Supplementation With Valine, Isoleucine, And Tryptophan Amino Acid On Growth Performance, Carcass Traits, And Nitrogen Excretion, Of Broiler Chickens Fed Low-Protein Diets, Ahmed Abd-Elaziz Abdallah, Mona A. Mahmoud, Mohamed M. Khalifah, Marwa R. El-Deken, Bahaa M. Abou-Shehema, Mohamed E. Farag, Mervat S. E. Yossef

Journal of King Abdulaziz University: Meteorology, Environment and Arid Land Agriculture

This study investigated the effects of supplementing low-protein diets with valine (Val), isoleucine (Ile), and tryptophan (Trp) on growth performance, carcass traits, blood parameters, and nitrogen excretion in broiler chickens. A total of 168 one-day-old unsexed Ross-308 broiler chicks were randomly divided into six groups: a positive control (PC) fed a basal diet, a negative control (NC) fed a low-protein diet supplemented with six essential amino acids, and four groups fed the NC diet with additional Val+Ile (5% or 10%) and Trp (5% or 10%). The results showed that the NC+5% Val+Ile group had significantly higher body weight gain (BWG) …

A Comparison Of Social, Economics, And Communication Factors Between Adopting And Non-Adopting Conservation Agriculture Wheat Farmers In Nineveh Governorate, Iraq, Mahmood Khalaf Wasmi Alkhulaifi, Abid Ali Hasan Al-Doski

Journal of King Abdulaziz University: Meteorology, Environment and Arid Land Agriculture

The research aimed to examine and compare the key socioeconomic and communication factors influencing wheat farmers’ adoption and non-adoption of conservation agriculture (CA) techniques in Nineveh Governorate, Iraq, during the 2023–2024 agricultural season. A total of 450 respondents were selected for the study—225 adopters (representing the entire group of CA adopters) and 225 non-adopters—drawn from a total farming population of 1,061 within the same adoption areas of Nineveh Governorate.

A combination of descriptive and quantitative analyses was employed to process the data, utilizing both t-tests and z-tests. The significance analysis revealed statistically significant correlations between CA adoption and several socioeconomic …

Integrated Vermicompost And Microbial Inoculation Enhance Growth, Yield, And Volatile Oil Composition Of Coriandrum Sativum L., Fatma Ahmed Fouad, Fatima A.A. Al Otaibi, Ahmed Ali Mahmoud

Journal of King Abdulaziz University: Meteorology, Environment and Arid Land Agriculture

An eleven-treatment field trial examined the effects of different rates of vermicompost (vermi.) (100%, 75%, and 50% of the recommended dose) in combination with bio-fertilizers [Azotobacter sp. and arbuscular mycorrhizal fungi (AMF)] on the performance of Coriandrum sativum L. during the winter seasons of 2023-2024 and 2024-2025. The treatments comprised an unfertilized control and all factorial permutations of vermicompost level with Azotobacter and/or AMF inoculation (100% vermicompost, 100 % vermicompost + Azotobacter, 100% vermicompost + AMF, 100% vermicompost + Azotobacter + AMF, 75% vermicompost + Azotobacter, 75% vermicompost + AMF, 75 % vermicompost + Azotobacter + …

Molecular Profiling Of Fungi Using Specific Primers, Faten A. S. Alsulaimany

Journal of King Abdulaziz University: Meteorology, Environment and Arid Land Agriculture

Accurate information about fungal identification is very important in various fields, such as medical, agronomic, environmental, and industrial. Traditional morphological and biochemical-based assays can be time-consuming, nonspecific, and fail to detect cryptic or uncultured species. Conversely, molecular profiling based particularly on the use of specific primers in polymerase chain reaction (PCR) methods offers a highly efficient alternative, as it is sensitive, highly specific, and relatively fast. This paper presents general aspects of fungal molecular profiling, the main genetic regions commonly employed: Internal Transcribed Spacer (ITS), Large Subunit (LSU), and Beta-tubulin(β-tubulin), and how to use specific primers for varied …

Spatial Variation Of Heavy Metals Uptake In Ashar Plant (Calotropis Procera) Organs: Implications For Air Pollution Mitigation In Riyadh, Mazen Fawaz Alraddadi, Mohammed Saba, Samir Gamil Al-Solaimani, Mansour Ahmed Alghamdi

Journal of King Abdulaziz University: Meteorology, Environment and Arid Land Agriculture

Phytoremediation is an eco-friendly and effective method that uses plants to reduce heavy metal pollution by absorbing and accumulating contaminants from the environment. This research focused on the native Al-Ashar plant and examined its potential as a bioindicator and agent for cleaning heavy metal contamination near a cement factory in Riyadh, Saudi Arabia. Soil and plant samples were gathered from sites at different distances from the factory (5 m, 50 m, 100 m), including a control site, and analyzed for metals such as copper, iron, manganese, chromium, cobalt, lead, and nickel.

The results showed elevated levels of these metals in …

Health Education On Operative Cataract Care: A Scoping Review, Luh Putu Prima Widya Ridwanti, I Ketut Swarjana, I Gusti Ngurah Made Kusuma Negara, Putu Gde Yudara Sandra Putra

Jurnal Epidemiologi Kesehatan Indonesia

Cataract is the leading cause of blindness worldwide, requiring surgery and appropriate patient and family education to ensure proper operative care. This literature review aimed to identify health education on operative cataract care. The type of this study is a scoping review using the PubMed database, ScienceDirect, and other sources that were published in the last 10 years (2015-2024). The PICO model (P: patients and families; I: audiovisual, booklets, leaflets, and others; C: standard care or education; O: knowledge and skills in cataract operative care) was used. The keywords used to search for articles are cataract surgery AND video OR …

Psychological Resilience As A Predictor Of Occupational Stress Among Teaching Staff In Course X, Indah Kusuma Wardani, Fajaria Nurcandra, Dr. Dyah Utari, Afif Amir Amrullah

Jurnal Epidemiologi Kesehatan Indonesia

Workplace stress is a common condition that may be triggered by the demands of professional involvement. Psychological resilience functions as a protective factor that enables individuals to maintain their level of work engagement despite experiencing job-related stress arising from work–life imbalance. This study aimed to examine the relationship between psychological resilience and occupational stress among teaching staff at Course X. The research employed a quantitative approach with a cross-sectional design, utilizing chi-square testing and Cox regression analysis, with a total sample of 98 participants. Data collection was conducted from April to June 2024. The instruments used included the Workplace Stress …

Environmental Health Risks To Children In Sub-Saharan Africa: A Scoping Review Of Evidence And Gaps In Global Interventions, Tadius C. Chitambwe, Dewi Susanna

Jurnal Epidemiologi Kesehatan Indonesia

Sub-Saharan Africa’s (SSA) children experience a disproportionate burden of environmental health risks, contributing to over half of global under-five deaths despite representing only 27% of live births ¹. This scoping review synthesised evidence from sixty-seven (67) eligible studies (2010–2025) to map out environmental exposures affecting children (0–18 years) in Sub-Saharan Africa, and to identify gaps in global interventions. Included studies focused on children (0-18 years) in SSA, addressed one or more of the four predefined environmental exposure domains (air pollution, WASH, toxic chemicals, climate-related risks), and reported on child health outcomes or interventions. Guided by the PRISMA and Arksey …

Socio-Demographic Determinants Of Hospitalization Severity Among Type 2 Diabetes Mellitus-Related Hospitalization Visits In Indonesia: A Cross-Sectional Analysis Of Using Bpjs Health Secondary Data, 2023, Nadia Putri, Asri C. Adisasmita, Fitria Fitria, Sely Anggraini

Jurnal Epidemiologi Kesehatan Indonesia

Type 2 diabetes mellitus (T2DM) is a chronic disease with high prevalence and contributes significantly to the burden of inpatient care in Indonesia. The severity of T2DM-related hospitalization as classified under the INA-CBGs system, is an important indicator for assessing disparities in access to care and the health system’s response to vulnerable populations. This study aims to analyze the relationship between socio-demographic characteristics and the severity of T2DM-related hospitalization visits based on 2023 Social Security Administering Body for Health (BPJS Health) data. This study employed a cross-sectional design using secondary data from the 2023 BPJS Health Sample Data. The unit …

Titi Bilang Bahagi Ng Katawan: Somatikong Pagbasa Sa Akdang Pambata, Axle Christien J. Tugano

Dalumat: Multikultural at Multidisiplinaryong E-Journal sa Araling Filipino

Kritikal na sinuri ng rebyung ito ang akdang pambata nina Genaro Gojo Cruz at Beth Parrocha na pinamagatang “Ako ay May Titi.” Sa mahabang panahon, matagal na siniil ang malayang talastasang ukol sa genitalia (titi at puki) gayong isa ito marahil sa mga bahagi ng katawang tao na tinukoy ni Bryan Turner (1992) na nangangailangan ng somatikong pagbasa sa kultural at politikal na katangian ng katawan. Higit pa sa anatomikong pagtingin, ang titi ay hindi lamang simpleng “segregasyon” ng kasarian at seksuwalidad ng tao, ngunit ito rin ay isa sa mga unang bahagi ng katawang natututuhan ng isang bata. Binuksan …

The “Four Concentric Circles Of Russian”: Toward A Model, Timothy G. Reagan

Russian Language Journal

Braj Kachru suggested that one way of understanding the role and use of English around the world was to distinguish among three concentric “circles”: the inner circle, the outer circle, and the expanding circle. In this article, I will use Kachru’s model as the foundation for the development a similar model for positioning the Russian language in the contemporary world. The historical differences in Anglo-American linguistic expansion and Russian linguistic expansion lead to somewhat different divisions among speakers of the respective languages. The model proposed here has four concentric circles: an inner circle (consisting of the Russian …

Book Review: Water, Whiskey, And Vodka: A Story Of Slavic Languages., Ronald I. Kim

Russian Language Journal

There are more speakers of Slavic languages in Europe today than of the continent’s two other major Indo-European branches, Romance and Germanic. Yet over a generation after the end of the Cold War, despite economic growth, tourism, and steadily increasing cultural exchange, ignorance among North Americans and Western Europeans about the basic facts of the Slavic languages remains sadly widespread. Even from speakers of Slavic languages themselves one continues to hear all sorts of linguistic myths, such as that all Slavic languages sound essentially identical to Russian or, at the other extreme, nationalistic claims that Polish and Ukrainian are nothing …

Spotlight: Resources For Ukrainian, Margaret Godwin-Jones

Russian Language Journal

The Digital Resources Corner (DRC) offers reviews of new digital resources that could be beneficial in the teaching and/or learning of Slavic languages. It is intended for instructors looking for or evaluating different materials to use in the classroom.

Applying A Neo-Bakhtinesque Concept Of Dialogue In The Elementary Russian Classroom, James M. Curtis

Russian Language Journal

This forum piece invites readers to consider how Bakhtin’s concept of dialogue can reshape the teaching of elementary Russian. Instead of treating beginners as passive recipients of rules and forms, a neo-Bakhtinian, constructivist approach views them as active co-creators of meaning whose prior experiences, beliefs, and anxieties matter for learning. The author argues that engaging students in genuine dialogue—about their assumptions, about English–Russian contrasts, and about how grammar is named and presented—can reduce intimidation, increase confidence, and make Russian feel more accessible. In this way, Bakhtin’s ideas move beyond literary theory into the practical realities of the introductory language classroom.

The Role Of Working Memory In The Acquisition Of L2 Russian Case, Natalia V. Parker

Russian Language Journal

With the development of cognitive psychology and psycholinguistics, the view of individual differences has been evolving and now includes concepts such as cognitive processing and Working Memory (WM) (e.g., Doughty, 2019; Jackson, 2020; McConnell, 2023; Wen & Teng, 2023). The present study contributes to this line of research by investigating the relationship between WM capacity and the accuracy of L2 Russian case inflection production by complete beginners in instructional settings, which is an under-researched area. The data are part of a larger study, which involved a 20-week teaching intervention with English-speaking volunteers (n=27), who were taught two Russian cases (Prepositional …

Teaching Russian Verbs Of Motion Through Russian-Language Cinema: A Cognitive Perspective, Sergei Motov

Russian Language Journal

The practice of foreign language teaching is paradoxical in nature. On the one hand, such teaching is communicative; on the other hand, it often continues to rely on structuralist linguistic theory, which contradicts its communicative nature. In the case of teaching Russian verbs of motion to second-language learners, the dynamic nature of these verbs is often considered not dynamically, but statically—in the form of abstract textual examples or static images—which is also paradoxical. Such an abstract treatment of verbs of motion contradicts a number of postulates of modern cognitive science and certain areas of cognitive linguistics. From the perspective of …

Hubungan Faktor Iklim, Faktor Polutan Dan Faktor Sosioekonomi Terhadap Proporsi Pneumonia Balita Provinsi Dki Jakarta Tahun 2013 – 2022, Fayza Chairunnisa Permana, Zakianis Zakianis, Laila Fitria, Erni Pelita Fitratunnisa

Jurnal Nasional Kesehatan Lingkungan Global

In 2022, the Province of DKI Jakarta ranked fourth with the highest coverage of pneumonia in toddlers (53.2%), exceeding Indonesia's toddler pneumonia coverage (38.78%). Pneumonia is influenced by various risk factors, including environmental factors such as climate and weather conditions as well as air pollution, and social and behavioral factors such as toddler characteristics, parental socioeconomic status, and access to health care services. This study aimed to analyze the relationship between climate factors (air temperature, relative humidity, rainfall, and air pressure), pollutant factors (PM₁₀, SO₂, CO, O₃, NO₂), and parents' socioeconomic …

From Gap To Growth? Examining Institutional And Legal Efforts To Bridge Gender Disparities In Higher Learning: The Case Of University Of Dar Es Salaam, Hadija K. Mwendah, Bernadeta Killian

Journal of Humanities and Social Sciences

Tanzania has adopted several institutional and legal frameworks to advance gender equality in higher learning. These include, national gender policies, affirmative action provisions and establishment of gender mainstreaming structures at universities. This paper examines how these frameworks have been implemented at the University of Dar es Salaam (UDSM) and the extent to which they have bridged gender disparities in academia. Using secondary data and drawing from feminist institutionalism, the study explores how formal rules and informal practices interact to influence gender outcomes. Findings reveal that while institutional mechanisms such as the UDSM Gender Policy, Institute for Gender Studies, Gender Desks …

Panda-Plus: Improved Dataset Of Prostate Whole Slide Images From Panda Challenge With Pixel-Level Expert Annotations, Spencer Hopson, Carson Mildon, Corbyn Kubalek, Joshua L. Ebbert, Ryan Vance, Lauren Laverty, Paul Urie, Dennis Della Corte

Faculty Publications

Artificial intelligence (AI)-based prostate cancer detection through whole slide images (WSIs) offers promising potential to address the global pathologist shortage while improving clinical consistency. Digital slides and improving image analysis methods encourage the creation of tools to aid in WSI classification. Despite promising advances, these tools are still limited by available training data. Current publicly available datasets, such as Kaggle's PANDA Challenge, while large in scale, rely on slide-level labels that may introduce noise and limit model reliability. Others contain detailed annotations, but are smaller in size due to manual processing efforts. In this work, we introduce PANDA-PLUS, a 546-image …

A Proposed Urban Branding Strategy As Sustainable Urban Regeneration Policy, A Case Study Of Burj-Al Burullus City, Dalia S. Shebl, Kariman A. Shawky

Mansoura Engineering Journal

This study examines the importance of a branding strategy that can be applied in Burj Al-Burullus city to promote and catalyze cultural heritage branding and invest in these facilities for economic and tourism purposes. By measuring the indicators of how urban branding may be achieved. Burj Al-Burullus city is empirically examined using Identity-Based Approach. Based on profound theoretical and analytical studies, the branding concept was studied and analyzed composing a list of indicators for tangible and intangible elements that illustrate the urban branding value of cities. Followed by an analysis of Burj Al-Burullus city using GIS and city data base …

Tube Roller Compression (Trc): A Novel Severe Plastic Deformation Technique For Grain Refinement And Enhanced Mechanical Properties Of Tubular Materials, Eman Zayed

Mechanical Engineering

No abstract provided.

An International Approach To Homelessness. Part I: The Case Of India., Pranit Lanjewar, Jaroslaw Richard Romaniuk

Faculty Scholarship

This paper, the first in a two-part study on homelessness in developing countries, explores the causes of homelessness in countries with significant populations living in poverty. This instalment focuses primarily on homelessness in India. The country’s diversity in terms of culture and religion is reflected in challenges when approaching issues related to homelessness. We highlight governmental initiatives to combat homelessness and provide impoverished people and families with access to essential services. A qualitative research method was used. We interviewed the recipients of government services aimed at helping their families overcome homelessness. Our findings highlight the role of education and educational …

Internationalization As Transformation: Teaching, Research, And Innovation In Gulf Stem Education, Sami B. Mejri, Mary Ann Bodine Al-Sharif, Asli Hassan, Norita Ahmed, Mehrdad Mohasses

Journal of Comparative & International Higher Education

This special issue examines the internationalization of higher education in the Gulf region, with a focus on culturally responsive approaches to teaching, learning, and research in STEM disciplines. Contributors investigate how institutions across the UAE, Saudi Arabia, and the wider Gulf are leveraging digital technologies, cross-border collaborations, and development centers to advance innovation, inclusivity, and sustainability. The articles highlight diverse strategies, from embedding intercultural fluency and equity in curricula to addressing grand challenges through global student perspectives and faculty role transformation. Together, these contributions present a forward-thinking vision of internationalization—one that resists conventional models and instead emphasizes cultural preservation, collaborative …

Navigating Uncertainty: A Fulbright Scholar’S Journey, Mary Ann Bodine Al-Sharif

Journal of Comparative & International Higher Education

This critical autoethnography provides insights to a Fulbright U.S. Scholar’s experience amid financial and geopolitical uncertainty. It addresses being abroad as an academic ambassador while also navigating feelings of frustration and uncertainty in managing one’s living expenses and research protocol while trying to preserve research partnerships despite U.S. political rhetoric.

Global Learning And Cultural Responsiveness In Stem Education: Case Study Insights From The Uae, Norita Ahmad

Journal of Comparative & International Higher Education

This study explores how digital pedagogy can be used to advance global learning and cultural responsiveness in STEM education, with a specific focus on responsible consumption and production (SDG12). Drawing on three undergraduate courses at the American University of Sharjah, Fundamentals of Database Systems, Python for Business Analytics, and Information Systems Strategy, this paper applies the CoDesignS Education for Sustainable Development (ESD) framework to examine how sustainability principles are embedded in course design, pedagogy, and student engagement. Through structured project-based learning, ethical data practices, and culturally relevant content, students develop key sustainability competencies while enhancing their intercultural awareness and digital …

Intercultural Transofmrational Experiences Of International Faculty In An American University, David Benefo, Wisdom Mensah

Journal of Comparative & International Higher Education

This qualitative interpretive study investigated the intercultural and transformational experiences of selected international faculty in a public university in the southeastern United States. This study collected data using semi-structured interviews with seven African and Asian international faculty from a public university in the southeastern United States. The themes that emerged from the data showed that time was of the essence in achieving proficiency in the communication systems of the host environment. Learning about the culture of the host environment was a gradual learning process that involved strategies such as total cultural immersion in the university activities, regular interaction with American-born …

For Evidence-Based Suicide Risk Assessment, Monica Molah

Walden Dissertations and Doctoral Studies

This clinical practice guideline (CPG) project was developed to address a practice gap regarding the lack of systemic approach to suicide assessment in adult patients. This Doctor of Nursing Practice (DNP) project identified a significant gap in care at a private mental health clinic, which lacked a consistent, evident-based approach to suicide risk assessment. The inconsistency increased the likelihood of under-identifying at risk patients, posing substantial medical-legal and patient safety concerns. The practice-focused question guiding this project was: Does the evidence support the development of a CPG for suicide risk screening that receives an AGREE II quality score by an …

Black Nurses In Leadership Roles: Resources And Opportunities Needed For Advancement, Patrick W. Petty

Walden Dissertations and Doctoral Studies

The lack of diversity in healthcare management is a social issue that can lead to increased implicit bias and adverse effects on patient care and quality. This study examined the underrepresentation of Black RNs in leadership roles within healthcare. The purpose of this qualitative descriptive study was to explore the perceptions of Black RNs in leadership regarding the opportunities and resources they need for advancement, as outlined in three research questions. A sample of 10 BSN nurses responded to 10 semi-structured interview questions, grounded in critical race theory. Codes were developed from responses, resulting in nine themes and 16 sub-themes, …