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Innovations In Shipbuilding: A Comprehensive Review Of Material Selection, Corrosion Management, And Environmental Considerations, Oumaima Bouanani, Sara Sandabad, Moulay El Houssine Ech-Chhibat

Journal of King Abdulaziz University: Marine Science

The shipbuilding industry, a cornerstone of global maritime operations, oversees vessel lifecycles from design through commissioning. This article delves into the industry's complex role in facilitating global trade, driving technological advancements, and prioritizing sustainability and safety. The harsh marine environment-marked by salinity, temperature extremes, and mechanical stresses-necessitates resilient and durable vessel structures. Consequently, the careful selection of materials is crucial for ensuring vessel longevity and performance under stringent safety and environmental standards. Recent breakthroughs in shipbuilding materials, including high-strength steel, composites, and lightweight alloys, have transformed the industry. Innovative solutions, such as shape memory alloys and eco-friendly composites, are designed …

Identifying And Analysing Coastal Landforms In Ar Rāyis, Saudi Arabia: Insights From Sentinel Data And Field Studies, Omar A. Alharbi

Journal of King Abdulaziz University: Marine Science

This study examines the coastal geomorphology of the Ar Rāyis coastal zone on the eastern Red Sea coastal plain, along with the processes underpinning this geomorphology. Coastal areas feature various landforms, including beaches, intertidal flats, khawrs (lagoons), sand spits, sand dunes, sabkhas (salt marshes), coral reefs, wadis, raised coral reef terraces, and alluvial terraces. These landform features suggest rapid alterations in coastal conditions. Furthermore, the analysis of Sentinel-2B data via digital processing reveals a range of natural land covers, with field investigations confirming the results. The supervised classification methods assisted in distinguishing between regions of deep and shallow water, while …

A Smart System For Detecting Anatomic And Histological Symptoms Of Diseased Agricultural Plants, Rustam Baratov, Himola Sunnatillayeva, Alimardon Mamatovich Mustafoqulov

Chemical Technology, Control and Management

This study describes a novel agricultural plant disease detecting smart system, capable of handling measured plant body parameters and images received by high resolution camera at the same time. The proposed plant disease detection method is based on evaluation of the signals received by measured and controlled plant body physical parameters like resistance, temperature and capacitance of the plant stem and image processing. An analogue plant model based on an electrical circuit with distributed parameters was developed. In addition, in the article the block diagram of the smart system for the early detection of plant diseases, the circuit diagram, its …

Production And Characterization Of Biodiesel From Malapari Seed Oil (Pongamia Pinnata L.): Evaluation Of Quality Parameters Based On The Indonesian National Standard (Sni) 04-7182-2015, Desi Adriyanti Nina Taebenu, Ni Luh Arpiwi, Ida Ayu Astarini

Makara Journal of Science

This study produced biodiesel from Malapari seed oil (Pongamia pinnata L.) by optimizing the esterification and transesterification processes. The objectives of this study were to determine the sulfuric acid (H₂SO₄) catalyst concentration in the esterification reaction that can reduc the free fatty acid (FFA) content of the seed oil to ≤2%, analyze the oil to methanol molar ratio (i.e.,1:6, 1:9, and 1:12) and KOH concentration (i.e.,2%, 4%, and 6%) that will produce the highest biodiesel yield, and evaluate the quality of the produced biodiesel according to the Indonesian National Standar (SNI) 04-7182-2015. The research was …

The Relationship Between The Use Of Piped Drinking Water And Diarrhea: Data From The 2017 Indonesia Demographic And Health Survey (Idhs), Afifah Azharadipta, Azizah Meutia Putri Ianam, Nadya P. Febriana, Pratiwi Haryani

Jurnal Nasional Kesehatan Lingkungan Global

Access to clean water remains a global challenge. According to the World Health Organization, in 2020 unsafe water and poor sanitation contributed to approximately 485,000 deaths annually due to diarrhea; one of the leading causes of child mortality in low- and middle-income countries. In Indonesia, UNICEF reported that nearly 70% of household drinking water sources are contaminated with fecal matter, increasing the risk of diarrhea, particularly among children under five. This study aims to analyze the association between the use of piped drinking water and the incidence of diarrhea among children under five in Indonesia. A cross-sectional study design was …

Hubungan Kelayakan Sumber Air Minum Terhadap Kejadian Diare Pada Anak Balita Di Indonesia: Studi Cross-Sectional Berdasarkan Data Sdki 2017, Dessy Anggun Utami, Azkia Afiatun Najah Wahyudi, Balqis Nisrina Safari, Eni Law

Jurnal Nasional Kesehatan Lingkungan Global

Background: Diarrhea is one of the leading causes of mortality in toddlers. One of its primary causes is associated with inadequate drinking water sources. However, studies exploring this relationship remain limited, necessitating further research to determine the association between the suitability of drinking water sources and the incidence of diarrhea in children under five in Indonesia. Method: A cross-sectional design was employed, using data on children under five from households included in the 2017 Indonesia Demographic and Health Survey (SDKI). The study examined the relationship between the incidence of diarrhea and the suitability of drinking water sources. Chi-square statistical tests …

Anthropometry Measurement Video Improve Knowledge Of Cadres In Nganjuk City: A Single Group Pre-Post Test Design Study, Farah Paramita, Mika Vernicia Humairo, Septa Katmawanti, Nohan Arum Romadlona

Preventia: The Indonesian Journal of Public Health

High quality anthropometric measurements are important for nutritional assessment in children. In Indonesia, anthropometric measurement of children performed by caders in child center called posyandu as a child growth monitoring. However error measurements are found, especially on length or height measurement of children affecting presision and accuracy of data. This will lead to misinterpretation of child nutrition status. Education and training for cadres using media are important to improve their knowledge and skill related to anthropometric measurements. This study aimed to assess the effect of anthropometry measurement training using videos on Cadre’s knowledge. This study used one group pre-post test …

Too Sweet To Ignore: How Ssb Intake And Physical Inactivity Affect Bmi In Malang’S Student Population, Indana Tri Rahmawati, Nurnaningsih Herya Ulfah, Anggi Renawati, Yuvica Novita Gunawan

Preventia: The Indonesian Journal of Public Health

The growing incidence of overweight and obesity in young adults has been closely associated with unhealthy lifestyle habits, particularly the high intake of sugar-sweetened beverages (SSBs) and low levels of physical activity. College students are especially at risk due to lifestyle changes that occur during their university experience. This research aims to investigate the SSB consumption patterns, physical activity levels, and their correlation with Body Mass Index (BMI) among university students in Malang City. A descriptive cross-sectional study was carried out with 382 active students chosen through accidental sampling. Data were obtained using an online questionnaire shared through student networks …

Tell Me A Story About Home: Black Masculinity Through The Lens Of Place, Relationships, And Discourse In The Marvel Cinematic Universe, Curtis Ladrillo Chamblee

Electronic Theses and Dissertations Archive

ABSTRACT The following dissertation explores the construction of Black masculinity in the Marvel Cinematic Universe (MCU) through a rhetorical analysis of three central figures: Sam Wilson, Black Panther (both T’Challa and Shuri) , and Luke Cage. Drawing from theoretical frameworks including Jackson’s (2006) concept of scripting, Griaule’s (1978) levels of the word, Gates’s (2018) theory of the double negative, and rhetorical fractals (Bloomfield & Chamblee, 2023), this project examines how Black masculinity is shaped through place, discourse, and relationships across rural, militarized, imagined, metaphysical, and urban environments. Each chapter foregrounds a distinct geography to investigate how the spatial, cultural, and …

The Relationship Between Caffeine Consumption And Sleep Quality Of Students Of The Faculty Of Sports Science Universitas Negeri Malang, Windi Chusniah Rachmawati, Dian Mawarni, Lucky Radita Alma, Adiska Rahma

Preventia: The Indonesian Journal of Public Health

Coffee is a popular drink consumed in Indonesia, especially among people aged 17 until 25 years. Coffee contains thousands of natural chemicals, one of which is caffeine, which has negative impacts on health if consumed in excessive amounts. The purpose of this study is to describe the caffeine-based beverages consumed and sleep quality and to assess the association between caffeine use and sleep quality. This study used a cross-sectional design with 120 respondents who completed a questionnaire about the history of caffeine-based beverage consumption and PSQI sleep quality, PSQI is used to measure the state of sleep which consists of …

Quantum Analysis Of Protein–Ligand Binding By Integrating Structural Resolution, Sequence Homology, And Ligand Properties, Don Roosan, Samira Samrose, Rubayat Khan, Saif Nirzhor, Brian Provencher

Computer and Data Science Faculty Publications

Predicting protein–ligand binding affinity is a fundamental challenge in computational biology and drug discovery, complicated by diverse factors including protein sequence variability, ligand chemical diversity, and structural resolution. Here, we present an integrative study that combines classical machine learning and quantum-enhanced modeling to investigate how crystal structure resolution, sequence similarity, and ligand properties jointly influence binding affinity. Using a curated “refined” dataset from PDBbind and an expanded general dataset, we first conduct correlation and regression analyses to quantify the relationships among binding affinity, ligand descriptors (e.g., molecular weight, logP), and protein structural metrics (resolution, R-factor). We observe moderate positive correlations …

Effects Of Stressor Exposure And Locus Coeruleus Opioid Signaling On Coping And Anxiety-Like Behavior In Rats, John Arthur Tkaczynski

Theses and Dissertations

Stress is a physiological state of altered neuroendocrine signaling and heightened indices of behavioral vigilance and arousal in response to threatening stimuli. This project aimed to investigate the adaptations to stress that occur in the noradrenergic locus coeruleus (LC) and how these changes affect stress coping behavior. We began by investigating how adolescent restraint and predator odor stress affects coping when presented with a secondary noxious stimulus in the defensive shock probe burying task one week following stressor exposure, finding that stressed male rats demonstrate a more active coping response and stressed female rats demonstrate a more passive coping response, …

Waterpod: Evaluating Learner Engagement And Conceptual Understanding Through Gamified Virtual Reality, Leeza Eimeria Duller

Theses and Dissertations

The water and wastewater industry faces a growing workforce crisis due to high retirement rates, limited public awareness, and underrepresentation of technical talent. Traditional outreach methods have struggled to engage students or convey the complexity of water systems. This study evaluates WaterPOD, an interactive virtual reality (VR) simulation designed to introduce users to wastewater treatment processes and careers through immersive learning. Grounded in Social Cognitive Career Theory (SCCT), Cognitive Load Theory (CLT), and Constructivist Learning Theory (ConLT), the study examined how VR influences conceptual understanding and career perceptions. A mixed-methods study with 138 college students measured SCCT constructs, CLT- and …

Cddo-Me Attenuates Fibroblast And Macrophage Activation In Limited Cutaneous Systemic Sclerosis, Heetaek Yang, Emily A. Morris, Chen-Yu Wang, Nicole M. Orzechowski, Michael Whitfield, Patricia Pioli

Dartmouth College Master’s Theses

Abstract

Systemic Sclerosis (SSc) is a rare autoimmune disease characterized by multiple-organ involvement and notably by fibrosis. Current therapies for SSc focus on symptom managements and treating specific organ related complications. However, heterogeneous nature of the disease further complicates treatment responses and hinders the development of new therapies. Therefore, there is a critical unmet need for the development of patient-specific therapeutics.

The objectives of this thesis were: (1) to evaluate the therapeutic potential of Bardoxolone Methyl (CDDO-Me) in both SSc fibroblasts and SSc macrophages. To achieve these goals, I utilized both wet-lab analysis tools and computational analysis.

As part of …

Development And Experimental Validation Of A Non-Invasive Blood Group Detection System, Nurath K. Nurudini

Tanzania Journal of Engineering and Technology (TJET)

An individual's blood group consists of red blood cell antigens whose composition is determined by protein presence, antigen structure, and gene series. Persons aged above six months have significant anti-A and/or anti-B in their serum. During transplantation and transfusion, ABO blood group identification is the most essential factor. The conventional method involves drawing blood samples from patients, and the blood group is determined based on the antigen-antibody reaction. This method consists of adding chemical reagents. However, this requires time of operation, and throughput analysis is high, and the process is also challenging to interpret. Accurate and rapid identification of blood …

Scoring System For Screening Fitness To Work For Offshore And Onshore Remote Area Worker, Kasyunnil Kamal

Occupational and Environmental Medicine Journal of Indonesia

Background: About 10-15% of medical examinations of workers at upstream oil and gas companies are not conducted properly. In some cases, workers die at worksites. Many doctors carrying out the assessment lack the competency to assess occupational risks. In this study, we developed a scoring system for ‘fitness for work’ assessment, which can be used by trained doctors.

Methods: Diagnostic testing was done with comparing the results of the determination screening fitness for work using a scoring system with the determine fitness for work results by Occupational Medicine Specialist as a gold standard in the same group. The entire 607 …

Design And Control Of A Versatile Modular Soft Robotic System With Integrated Resource Sharing And Self-Reconfiguration Capabilities, Joshua Knospler

Theses and Dissertations

Modular, self‑reconfigurable soft robots promise unprecedented versatility by combining the compliance of soft materials with the adaptability of modular architectures. This thesis presents an integrated system of pneumatic, bending-type soft actuator modules. Modules are compact and fully equipped with tunable magnetic and electromechanical connections for low‑power attachment and detachment and a novel power-air-communication (PAC) connector for seamless sharing of electricity, compressed air, and digital signals. This work examines two representative assemblies: ManusBot, a pinching gripper, and TendrilBot, a versatile linear configuration for various tasks. Their grasping performance, variable stiffness, and radial support capabilities are characterized. A magnetic interlock and an …

Impact Of Delivery Mode On Neonatal Serum Bilirubin Levels And Jaundice Risk In Melati Husada Women And Children Hospital, Malang, Andreas Budi Wijaya, Harjoedi Adji Tjahjono

Preventia: The Indonesian Journal of Public Health

It is anticipated that between 60 and 80 percent of healthy, full-term newborns would exhibit idiopathic neonatal jaundice. Mode of delivery has recently been associated with idiopathic neonatal jaundice. As seen at Melati Husada Women and Children Hospital in Malang, the increasing number of caesarean section was followed by increased frequency of neonatal hyperbilirubinemia. This hyperbilirubinemia should be resolved within two weeks, therefore, prolonged jaundice should be deeply investigated. This research aimed to investigate the relationship between mode of delivery and neonatal serum bilirubin at 48 hours after birth at Melati Husada Women and Children Hospital in Malang. During observational …

Adapting A Personalized Normative Feedback Intervention For Graduate Student Drinkers, Faith Shank

Theses and Dissertations

On average, graduate students consume eight drinks per week, meeting criteria for heavy drinking and highlighting the need for a cost-effective intervention. The current study examined the efficacy of personalized normative feedback (PNF) for reducing heavy drinking in graduate students. Study 1 examined the feasibility and acceptability of the intervention content to inform a randomized controlled trial (RCT) of the intervention. Results from qualitative interviews with 13 graduate students who interacted with the intervention content preferred to receive feedback about peers enrolled in the same type of degree program. Study 2 was an RCT using PNF from peers with the …

The Effect Of Educational Games On Distance Perception And The Performance Of The Volleyball Serving Skill Among Female Students, Luma Sameer Hammoudi, Marwa Saadi Mahmoud, Ghofran Basheer Hamza, Özgür Eken

Modern Sport

Educational games are among the most effective tools for teaching fundamental skills, particularly in volleyball. The present study addresses the issue of weak performance among second-year female students at the College of Physical Education and Sport Sciences for Women in executing the volleyball serve. This weakness is attributed to the learners' limited perception of the appropriate distance required to toss the ball upward before striking it, as well as their poor understanding of the correct serving distance. Additionally, there is a need to incorporate engaging methods into the educational process. Therefore, the study aimed to design instructional units utilizing educational …

An Analytical Study Of Selected Biomechanical Variables And The Accuracy Of Forecourt And Backcourt Shots In Wheelchair Badminton Players, Zina Abdulkareem Abbas, Fatimah Abed Malih

Modern Sport

The significance of this study lies in analyzing player movement through biokinematic variables using video recording and Kinovea motion analysis software. By investigating selected biomechanical variables, the researchers aimed to improve the accuracy of forecourt and backcourt shots among wheelchair badminton players based on insights derived from this analysis. The findings aim to guide coaches and players by utilizing motion analysis outcomes to enhance training strategies and achieve higher levels of technical performance and athletic accomplishment. The study aimed to describe and analyze the biomechanical variables influencing shot accuracy and identify the relationship between these variables and shot accuracy among …

The Effect Of Boot Camp Training Program On The Development Of Special Strength And Some Biomechanical Indicators Of The Triple Jump In Young Female Athletes, Suaad Abdul-Hussein, Zainab Ali Abdul-Ameer

Modern Sport

The qualitative concept of training experienced athletes is not limited to strength training alone, but extends to general physical conditioning and, ultimately, to special strength training during the specific phases of athletic preparation, depending on the type of sport practiced. Since athletic training should not follow a single, monotonous pattern, the researchers adopted modern Boot camp exercises to develop special strength and biomechanical variables for female triple jump athletes. The study aimed to design Boot camp exercises specifically to enhance special strength and certain biomechanical indicators in young female triple jump athletes, and to identify the impact of these exercises …

The Effect Of Blue Light Filter Lens Glasses On The Occurrence Of Asthenopia Symptoms In Visual Display Terminal Users, Arif Hening Mustikaningrum, Dewi Sumaryani Soemarko, Indah Suci Widyahening

Occupational and Environmental Medicine Journal of Indonesia

The widespread use of Visual Display Terminals (VDTs) is associated with visual and musculoskeletal complaints, particularly Asthenopia, which may reduce productivity. A 32-year-old female financial worker presented with eye discomfort, including sore eyes, blurred vision, dizziness, and twitching on her left temple, particularly during extended computer use. The symptoms were relieved with rest. Most VDTs now use Light Emitting Diodes, which emit more blue light than LCDs and may cause eye fatigue and disrupt sleep. Currently, blue light filter lenses are available in the market, however, further study of existing scientific publications is necessary to ensure the effectiveness of blue …

Determination Of Urinary Metabolites Of Toluene And Xylenes In Paint Workers And Non-Occupationally Exposed Individuals In Saudi Arabia, Ahmad Alturkstani, Radhouane Chakroun, Bassam Jamoussi, Raghad Alhajaji

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

Aromatic hydrocarbons such as toluene and xylenes are widely used as solvents in industrial processes, particularly in paint production, despite their known toxicity. Occupational exposure to these chemicals poses significant health risks, especially for workers in the manufacturing and application sectors. The International Agency for Research on Cancer (IARC) has reported an increased cancer risk associated with paint fume exposure, prompting regulatory agencies such as the Occupational Safety and Health Administration (OSHA) and the National Institute for Occupational Safety and Health (NIOSH) to establish exposure limits. In Saudi Arabia, a key player in the petroleum and chemical industries, workers face …

The Effect Of Gum Arabic (Acasia Senegal) As A Natural Prebiotic Supplementation For Broiler Chickens, Mohamed A. M. Mousa, Abeer Rabie Khosht, Ibrahim H. Salim, Ahmed. E. Shamseldeen, Ahmed S. Arafa, Maged A. El-Deeb, Hamdy M. El-Komy, Samia M Mobarez

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

Gum Arabic (GA) belongs to the Fabaceae family and contains indigestible soluble fibers (80--85%) that can be fermented by commensal bacteria to enhance performance, immune response, and intestinal integrity. The aim of this study was to determine the effect of different levels of gum arabic (GA) on overall growth performance, serum biochemical indicators, relative weight of visceral and lymphoid organs, intestinal histomorphology, and selected pathogenic bacteria in broiler chickens. A total of 450 day-old Ross chicks were assigned to four groups, containing 0, 2.5, 5.0, 7.5 and 10.0 g gum arabic along with basal feed for 35 days. Results indicated …

Exploring Phytoconstituents Of Neem Leaf Extract And Its Potential Antimicrobial And In Vitro Anticancer Activities, Omer Hosni Mohamed Ibrahim

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

Considering the growing interest in exploring the biologically active chemicals of the neem (Azadirachta indica A. Juss) plant, this current study was designed to explore and characterize the probable phytoconstituents of the methanolic extract of neem leaves using GC-MS analysis. The antibacterial activity of the extract was studied against Agrobacterium tumefaciens, Serratia marcescens, and Acinetobacter johnsonii and its antifungal activity against Rhizoctonia solani, Penicillium italicum, and Fusarium oxysporium. Further, the cytotoxicity was assessed against PC-3, MCF-7, and Caco-2 cancer cell lines, compared with the normal Vero cells, where IC₅₀ and selectivity index for …

Efektivitas Massage Endorphin Untuk Mengurangi Kecemasan Pada Ibu Hamil Menjelang Persalinan, Widiya Saryani, Dini Nur Alpiah

Jurnal Fisioterapi Terapan Indonesia

Pregnancy is a biological process involving complex physiological and psychological transitions that demand high adaptability from women, especially approaching childbirth. Anxiety during the third trimester is frequently reported and is associated with increased cortisol secretion, which may negatively impact labor effectiveness. This literature review aimed to synthesize scientific evidence regarding the effectiveness of endorphin massage in reducing anxiety among pregnant women in the third trimester. The review used a systematic approach based on the PICO framework, covering studies published between 2021 and 2025. Databases such as PubMed, Google Scholar, and SINTA were used to identify quasi-experimental studies comparing endorphin massage …

Efektivitas Latihan Aerobik Dalam Mengurangi Gejala Depresi: Literature Review, Putra Adytio Giriyoga, Dini Nur Alpiah

Jurnal Fisioterapi Terapan Indonesia

Depression is one of the most common mental health disorders worldwide and can significantly affect an individual's quality of life. Various treatment approaches have been implemented, with one of the most noteworthy being non-pharmacological interventions in the form of aerobic exercise. This study aims to review the effectiveness of aerobic exercise in reducing depressive symptoms. This research is a narrative literature review, in which 3,610 articles were initially identified and then filtered based on inclusion-exclusion criteria, resulting in 8 articles. After eliminating duplicates, further screening was conducted through critical appraisal. The final selection of 8 articles was reviewed. The findings …

Contextual Approach To Improve Problem Solving Skills In Ipas Subject At Elementary School: A Study Development Of Teaching Materials, Nur Hidayah, Sumarno Sumarno, Joko Siswanto

Jurnal Pendidikan Sains

The objective of this study is to assess the validity, practicality, and efficacy of instructional materials. We refer to this research as research and development, with a focus on the creation of teaching materials. The research design proposed by Borg and Gall consists of six steps: identification of potential and difficulties, data collecting, product design, design validation, design revision, and product trial. The utilized instruments comprise expert and practitioner validity sheets, teacher and student response surveys, and validation sheets for teaching materials and modules, as well as pretest and posttest questions. Experts performed the validity assessment, attaining a score of …

The Effort To Improve Students’ Problem-Solving Ability: Physics E-Modules For High School Students, Hidayatullah Hana Putra, Edi Supriana, Nasikhuddin Nasikhuddin, Annisa U. Yana, Suhailee Sohnui

Jurnal Pendidikan Sains

Physics teachers in Indonesia still face obstacles during learning, such as students who are less active and have difficulty in solving physics problems. The physics learning media used are also still not very interesting and are not based on authentic problem solving. Therefore, this study focuses on the development of PBL-based e-modules on work and energy to improve the physics problem-solving abilities of high school students. This research and development used the ADDIE design and was tested on 90 high school students in High School 1 Sumber Pucung Malang in the 2022/2023 academic year. The questionnaire instrument was used in …