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Chemical Composition And Thermal Behavior Of Biopolymer Tjipetir Gutta-Percha, Dewi Kartikasari, Wenny Maulina, Alivia Nurul Avivin, Djarwani Soeharso Soedjoko, Anawati Anawati Sep 2026

Chemical Composition And Thermal Behavior Of Biopolymer Tjipetir Gutta-Percha, Dewi Kartikasari, Wenny Maulina, Alivia Nurul Avivin, Djarwani Soeharso Soedjoko, Anawati Anawati

Makara Journal of Science

Natural gutta-percha, a biopolymer derived from the sap of Palaquium gutta trees, has long been utilized in endodontics for root canal obturation, yet its native physicochemical properties remain inadequately characterized. In this paper, we present a comprehensive analysis of pure gutta-percha from Tjipetir, West Java, Indonesia, employing spectroscopic (FTIR, NMR), crystallographic (XRD), morphological (SEM/EDS, 3D microscopy), and thermal (DSC-TGA) techni-ques. Morphological assessment demonstrated a dense, non-porous microstructure with moderate surface roughness, supported by elemental homogeneity of carbon and oxygen as shown by EDS. FTIR and NMR confirmed that the material possessed a trans-1,4-polyisoprene structure, while XRD revealed a mixed …

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Levofloxacin-Ketoprofen Multicomponent Salt Development As A Strategy To Improve The Antibiotic Potency And Anti-Inflammatory Performance, Ilma Nugrahani, Nadhira Dzaky Naushafira, Nova Suliska, Marlia Singgih Wibowo, Hana Fauziah Sep 2026

Levofloxacin-Ketoprofen Multicomponent Salt Development As A Strategy To Improve The Antibiotic Potency And Anti-Inflammatory Performance, Ilma Nugrahani, Nadhira Dzaky Naushafira, Nova Suliska, Marlia Singgih Wibowo, Hana Fauziah

Makara Journal of Science

Levofloxacin is a fluoroquinolone antibiotic with higher solubility than those from previous generations, but it is light-sensitive. Antibiotics, including levofloxacin, are generally prescribed in combination with nonsteroidal anti-inflamma-tory drugs (NSAIDs) to treat inflammatory infections. Furthermore, NSAIDs have poor water solubility, which can be improved by forming salts or multicomponent systems. This study aimed to develop a multicomponent system from levofloxacin with ketoprofen, an NSAID, and to evaluate its physicochemical characteristics; antibiotic potency; in vivo anti-inflammatory activity; absorption, distribution, metabolism, and excretion (ADME); and in silico toxicity risk. First, a phase diagram was created to predict the interaction type in the …

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Characterization Of Combined Adsorption Using Fermi Levels, Molecular Dynamics, And Monte Carlo Simulations To Prevent Cu–Zn (111) Alloy Corrosion, Mushtaq Jerri Meften, Ammar Abdul Jabbar Kadhim, Mohammed Shafeeq Abed Sep 2026

Characterization Of Combined Adsorption Using Fermi Levels, Molecular Dynamics, And Monte Carlo Simulations To Prevent Cu–Zn (111) Alloy Corrosion, Mushtaq Jerri Meften, Ammar Abdul Jabbar Kadhim, Mohammed Shafeeq Abed

Makara Journal of Science

Experimentally developing corrosion inhibitors requires a significant amount of money and time. In silico advancement empowers selecting inhibitor molecules based on their properties derived from theoretical studies, thereby reducing costs. Our main approaches include theoretical studies such as Fermi levels, electrostatic potential surface (EPS), Fukui indices, molecular dynamics stimulations, and Monte Carlo as indispensable tools to investigate the adsorption mechanisms of molecules 6-((5-(((3S,5R)-2-oxo-5-((2-(pyrazin-2-yloxy) thiazol-5-yl) thio) tetrahydro-2H-thiopyran-3-yl) oxy)isothia-zol-3-yl)thio) nicotinic acid (PTT), and (S)-2-((5-((6-((3-(2-thioxoethoxy)-1,2,4-thiadiazol-5-yl)thio)-1,6-dihydropyra-zin-2-yl)oxy)-1,3,4-thiadiazol-2-yl) thio) acetaldehyde (TTD) on the Cu/Zn (111) alloy. We electronically characterized PTT and TTD, which were proven effective inhibitors. Notably, all results suggested that the two exhibited high …

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Increasing The Density Value Of Composite Propellant Ap/Htpb/Al For Rocket Performance Using The Sphere Packing Model, Muhammad Iqbal Alfikri, Bayu Prianto, Ariadne Lakshmidevi Juwono Sep 2026

Increasing The Density Value Of Composite Propellant Ap/Htpb/Al For Rocket Performance Using The Sphere Packing Model, Muhammad Iqbal Alfikri, Bayu Prianto, Ariadne Lakshmidevi Juwono

Makara Journal of Science

This research employs the sphere packing volume (SPV) model to optimize the density of composite propellants thereby enhancing rocket performance. We systematically varied the diameters of spherical ammonium perchlorate (AP) particles (50 and 400 µm) and aluminum powder (Al) particles (10 and 30 µm). These particles were incorporated at an ideal AP:Al ratio of 4:1 into a matrix of hydroxyl-terminated polybutadiene and toluene diisocyanate. By adjusting the AP ratio for each Al particle size and considering theoretical and tap densities, we precisely calculated the SPV value for each composition. The composition with the highest SPV value yielded remarkable results. This …

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Nuclear Neuroimaging Approaches To Traumatic Brain Injury: Current Insights And Future Directions, Shivani Daksh, Anupriya Adhikari, Nikhil Kumar, Garima Mann, Anupama Datta Sep 2026

Nuclear Neuroimaging Approaches To Traumatic Brain Injury: Current Insights And Future Directions, Shivani Daksh, Anupriya Adhikari, Nikhil Kumar, Garima Mann, Anupama Datta

Makara Journal of Science

The aftermath of a traumatic brain injury is characterized by a state of disruption, progressing into secondary injury and culminating in a complex network of interconnected pathophysiological disturbances.  The potential risk of developing neurological disorders after TBI highlights the pressing need to enhance our understanding and develop therapeutic in-terventions to alleviate its devastating consequences. Traumatic brain injury can lead to a range of problems, including pain, swelling, axonal degeneration, and chronic amnestic and non-amnestic cognitive impairments. The first and essential step in the management of TBI is to identify and characterize the clinical symptoms. This systematic review outlines the established …

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Bambara Groundnut (Vigna Subterranea L.) Supplementation Ameliorates The Histological Structure Of Skeletal Muscle In Protein-Deficient Mice, Raquellynda Fadilla Syafanisa, Rimonta Febby Gunanegara, Sunarti Sunarti, Siti Aeniah, Ardaning Nuriliani Sep 2026

Bambara Groundnut (Vigna Subterranea L.) Supplementation Ameliorates The Histological Structure Of Skeletal Muscle In Protein-Deficient Mice, Raquellynda Fadilla Syafanisa, Rimonta Febby Gunanegara, Sunarti Sunarti, Siti Aeniah, Ardaning Nuriliani

Makara Journal of Science

Protein deficiency may cause histological alterations and pathological effects in skeletal muscle, leading to reduced mus-cle size and functional degeneration. Bambara groundnuts contain essential amino acids that have the potential to meet the body’s protein requirements. Therefore, this study aimed to investigate the effect of bambara groundnut supplemen-tation on skeletal muscle in protein-deficient mice. Twenty-five female mice were divided into five groups (control, pro-tein deficiency, and protein deficiency with 100, 200, and 300 g of bambara groundnut supplementation/kg of feed). The treatment was administered for 2 months. At the end of the experiment, the left gastrocnemius muscles of the mice …

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In Silico Exploration Of Alstonia Scholaris Secondary Metabolites As Antioxidant: Molecular Docking With Key Enzymes And Toxicity Prediction, Arifa Rizqi Nafisa, Anggiresti Kinasih, Muhammad Luqman Hakim, Arif Nur Muhammad Ansori Sep 2026

In Silico Exploration Of Alstonia Scholaris Secondary Metabolites As Antioxidant: Molecular Docking With Key Enzymes And Toxicity Prediction, Arifa Rizqi Nafisa, Anggiresti Kinasih, Muhammad Luqman Hakim, Arif Nur Muhammad Ansori

Makara Journal of Science

Degenerative diseases associated with oxidative stress necessitate the development of effective antioxidant therapies. Alstonia scholaris, a medicinal plant known for its diverse pharmacological properties, was investigated for its antioxidant potential using computational approaches. This study employed molecular docking to evaluate the interactions between bioactive compounds from Alstonia scholaris and key antioxidant target proteins, including lipoxygenase, CYP2C9, NADPH oxidase, and bovine serum albumin. Pharmacokinetic analyses based on Lipinski’s Rule of Five, along with toxicity assessments, were conducted to evaluate the compounds’ drug-likeness and safety profiles. The results demonstrated that (+)-Dicentrine exhibited the strongest and most stable binding affinity toward lipoxygenase …

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Differential Gene Expression Of Ethylene Biosynthesis And Signaling Associated With Climacteric Behaviors In Indonesian Melon, Vida Rahma Latifah, Adib Fakhruddin Yusuf, Karso Suryo Putro, Dian Sartika, Anjar Tri Wibowo, Awik Puji Dyah Nurhayati, Karlia Meitha, Miftahudin Miftahudin, Budi Setiadi Daryono Sep 2026

Differential Gene Expression Of Ethylene Biosynthesis And Signaling Associated With Climacteric Behaviors In Indonesian Melon, Vida Rahma Latifah, Adib Fakhruddin Yusuf, Karso Suryo Putro, Dian Sartika, Anjar Tri Wibowo, Awik Puji Dyah Nurhayati, Karlia Meitha, Miftahudin Miftahudin, Budi Setiadi Daryono

Makara Journal of Science

Fruit ripening in melon (Cucumis melo L.) is a complex developmental process that is characterized by the coexistence of climacteric and non-climacteric varieties within the same species. This study characterized the ripening behavior of four local Indonesian melon cultivars (“Melona”, “GMP”, “Tacapa Gold”, and “Kinaya”) by integrating morphophysio-logical traits with transcriptional expression analysis of ethylene biosynthesis (CmACS, CmACO) and signaling (CmATH, CmEREBP) genes. The results revealed a strong agreement between the phenotypic traits and molecular regulation. “Melona” and “GMP” exhibited a strong climacteric profile, which was characterized by natural fruit abscission, sweet aroma …

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Impact Of Disturbances On Butterfly Communities At The Forest Edge Of Bukit Mas Village, North Sumatra, Indonesia, Nurhayati Nurhayati, Mufti Petala Patria, Nurul Winarni, Fairuz Husna Sep 2026

Impact Of Disturbances On Butterfly Communities At The Forest Edge Of Bukit Mas Village, North Sumatra, Indonesia, Nurhayati Nurhayati, Mufti Petala Patria, Nurul Winarni, Fairuz Husna

Makara Journal of Science

Biotic homogenization can negatively impact ecosystem function and stability, reducing species diversity and interac-tions. Although deforestation has declined in Gunung Leuser National Park since 2011, associated pressures still operate at various places within the park, possibly leading to biotic homogenization. This study looked into the differences in butterfly diversity under three habitat types to understand their responses to various levels of disturbance, including en-vironmental factors. This research was carried out in September 2023 at the forest edge of the Bukit Mas Village, North Sumatra. We used the Point Count method; observations were made twice in the morning (08.00–12.00 h) and …

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Network Pharmacology Of A Decaffeinated Green Coffee–Turmeric Combination: Potential Therapeutic Activity Against Hypertension And Diabetes Mellitus, Feri Eko Hermanto, Mohammad Saifur Rohman, Victor Alvianoes Guterez Hose, Mifetika Lukitasari, Dwi Adi Nugroho, Nashi Widodo, Inggita Kusumastuty Sep 2026

Network Pharmacology Of A Decaffeinated Green Coffee–Turmeric Combination: Potential Therapeutic Activity Against Hypertension And Diabetes Mellitus, Feri Eko Hermanto, Mohammad Saifur Rohman, Victor Alvianoes Guterez Hose, Mifetika Lukitasari, Dwi Adi Nugroho, Nashi Widodo, Inggita Kusumastuty

Makara Journal of Science

Decaffeinated green coffee and turmeric are recognized for their protective effects against hypertension (HTN) and diabetes mellitus (DM). Combining them into a functional drink, green coffee and turmeric (GCT), offers potential health benefits for managing these conditions. This study explored the bioactivity of GCT in HTN and DM through network biology, identifying intersecting protein targets and their roles in inflammation and glucose metabolism. Key proteins identified were AKT1, CCL2, CXCL8, IL-1β, and IL18. Molecular docking revealed that GCT compounds, particularly Cafestol, Chlorogenic Acid, Kahweol, Curcumin, and Desmethoxycurcumin, interacted strongly with AKT1 at its allosteric site, potentially inhibiting its activity. However, …

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Lignin Valorization To Phenolic Compounds Over Metal Oxide-Modified Hierarchical Zsm-5 Zeolites Derived From Indonesian Minerals, Arnia Putri Pratama, Iman Abdullah, Yuni Krisyuningsih Krisnandi Sep 2026

Lignin Valorization To Phenolic Compounds Over Metal Oxide-Modified Hierarchical Zsm-5 Zeolites Derived From Indonesian Minerals, Arnia Putri Pratama, Iman Abdullah, Yuni Krisyuningsih Krisnandi

Makara Journal of Science

Lignin, a key component of lignocellulosic biomass, offers significant potential as a renewable raw material for the sustainable production of aromatic chemicals. To investigate its heterogeneous catalytic depolymerization, benzyl phenyl ether (BPE) was used as a model compound. Hierarchical ZSM-5 catalysts were synthesized and modified with metal oxides (NiO and CuO). Belitung kaolin and Bayat natural zeolite, natural minerals from Indonesia, were used as silica and alumina sources to synthesize hierarchical ZSM-5 zeolite (labeled as ZSM-5N), which was compared with hierarchical ZSM-5 synthesized using pro-analysis precursors (labeled as ZSM-5S). Comprehensive physicochemical characterization using FTIR, XRD, BET, XRF, SEM-EDX, and NH₃-TPD …

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Chapter 2: Boarding The Shadow Fleet: Stateless Vessels In The Law Of The Sea, James Kraska Sep 2026

Chapter 2: Boarding The Shadow Fleet: Stateless Vessels In The Law Of The Sea, James Kraska

International Law Studies

No abstract provided.

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The Impact Of Implementing A Discharge Tool On Nurses’ Confidence And Press Ganey Patient Survey Scores In Discharge Planning, Cristan Ledbetter Sep 2026

The Impact Of Implementing A Discharge Tool On Nurses’ Confidence And Press Ganey Patient Survey Scores In Discharge Planning, Cristan Ledbetter

Doctor of Nursing Practice Projects

A needs assessment at a rural hospital revealed an opportunity for improvement in discharge planning. The purpose and aim of this project was to improve nurses’ confidence in the discharge process and improve Press Ganey survey scores in communication about medicine domain and discharge information domain. Inadequate discharge planning leads to poor patient outcomes, concern for patient safety, increased healthcare costs, and inferior patient satisfaction. The quality improvement (QI) project utilized a one-group pretest/posttest QI design. An evidence-based, standardized discharge tool was implemented. The Susan Grundy confidence scale (C-Scale) was used to evaluate nurses’ confidence in the discharge process pre- …

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Enhancing Healthcare Provider Confidence And Accuracy In Performing And Documenting The Abnormal Involuntary Movement Scale, Victoria Okoani-Nneji Sep 2026

Enhancing Healthcare Provider Confidence And Accuracy In Performing And Documenting The Abnormal Involuntary Movement Scale, Victoria Okoani-Nneji

Doctor of Nursing Practice Projects

Monitoring for medication-related movement disorders is essential for adults with schizophrenia receiving antipsychotic medications; however, inconsistent Abnormal Involuntary Movement Scale (AIMS) assessment and documentation can limit timely recognition of abnormal movements. This quality improvement project evaluated a six-week structured AIMS education program designed to improve provider confidence and documentation accuracy in an outpatient behavioral health setting in Central Ohio. Guided by Benner’s Novice-to-Expert Model and Kotter’s Eight-Step Change Model, the project used a one-group pretest-posttest design with 15 licensed behavioral health providers. Weekly sessions included instruction, demonstration, guided practice, case-based learning, scoring, interpretation, and electronic health record (EHR) documentation. Descriptive …

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Quality Improvement Project: Determining Impact Of Mental Health Screening Provider Training, Sherri Bennett Sep 2026

Quality Improvement Project: Determining Impact Of Mental Health Screening Provider Training, Sherri Bennett

Doctor of Nursing Practice Projects

Obesity is frequently associated with mental health concerns, yet these conditions may remain under identified when mental health screening is not consistently incorporated into medical weight-loss care. At the project site, fewer than 2% of patients who are overweight or obese were identified as needing mental health services, demonstrating a practice gap in screening and referral. The purpose of this quality improvement project was to evaluate whether targeted mental health screening education improved provider confidence. The aim was to increase confidence in conducting mental health screening among nurse practitioners in a medical weight-loss program. The Stetler Model provided the theoretical …

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Green Finance’S Role In Bank Risk: Empirical Evidence From The Emerging Economy, Viverita Viverita, Dwi Nastiti Danarsari, Ratih Dyah Kusumastuti, Ruhaini Muda Sep 2026

Green Finance’S Role In Bank Risk: Empirical Evidence From The Emerging Economy, Viverita Viverita, Dwi Nastiti Danarsari, Ratih Dyah Kusumastuti, Ruhaini Muda

Journal of Environmental Science and Sustainable Development

Indonesia’s Financial Services Authority (OJK)’s sustainable finance roadmap, phases I and II, primarily aims to facilitate sustainable development by integrating economic, social, and environmental considerations into financial policies. A special objective is to promote the development of green financial products and services. This policy allows banks to mitigate reputational and regulatory challenges. Nevertheless, the prompt implementation of green credit may entail transition risks, such as policy adjustment costs. A limited body of research examines the direct relationship between green finance and bank risk, particularly in the context of sustainability mandates. This study analyzes the influence of green finance on banking …

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Translation Techniques And Meaning Equivalence In The Novels ``It Ends With Us'' And ``Akhir Antara Kita'' By Colleen Hoover, Tanty Aidullia Nasution, Rusdi Noor Rosa, Erikson Saragih, Rudy Sofyan, T. Thyrhaya Zein Sep 2026

Translation Techniques And Meaning Equivalence In The Novels ``It Ends With Us'' And ``Akhir Antara Kita'' By Colleen Hoover, Tanty Aidullia Nasution, Rusdi Noor Rosa, Erikson Saragih, Rudy Sofyan, T. Thyrhaya Zein

Bahasa dan Seni: Jurnal Bahasa, Sastra, Seni, dan Pengajarannya

Translating literary works addressing sensitive issues such as domestic violence (DV) and psychological trauma requires careful strategies to preserve meaning, emotional nuances, and pragmatic effects in the target language. This study examines translation techniques, levels of meaning equivalence, and relevance in dialogues concerning domestic violence and personal trauma in Colleen Hoover's It Ends with Us and its Indonesian translation, Akhir Antara Kita. Employing a descriptive qualitative approach, 451 dialogue segments were analyzed using the frameworks of Molina and Hurtado Albir (2002), Baker (1992), and Gutt (2010). The findings identified 17 translation techniques, predominantly established equivalent (26.60%), modulation (20.45%), and …

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Intimate Partner Violence And Child Wasting Across Countries: An Ecological Cross-Sectional Study, Wanri Lumbanraja, I Ketut Kasta Arya Wijaya, Ruben Cornelius Siagian Sep 2026

Intimate Partner Violence And Child Wasting Across Countries: An Ecological Cross-Sectional Study, Wanri Lumbanraja, I Ketut Kasta Arya Wijaya, Ruben Cornelius Siagian

Journal of Indonesian Health Policy and Administration

Intimate partner violence (IPV) is a public health issue that can affect the well-being of women, their families, and the child-rearing environment. Meanwhile, wasting in under-five children reflects acute malnutrition linked to food insecurity, infectious diseases, poverty, and access to healthcare services. This study aimed to analyze the relationship between the prevalence of IPV among women in the past 12 months and the prevalence of wasting in children under the age of five at the national level. This study addresses the gap in cross-national research, which remains limited in linking IPV as an indicator of social vulnerability with wasting as …

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Perceived Susceptibility And Automatic Compliance In Indonesia's Triple Elimination Screening: A Mixed-Methods Study, Ratna Dewi Puspita Sari, Josef Maria Seno Adjie Sep 2026

Perceived Susceptibility And Automatic Compliance In Indonesia's Triple Elimination Screening: A Mixed-Methods Study, Ratna Dewi Puspita Sari, Josef Maria Seno Adjie

Journal of Indonesian Health Policy and Administration

Despite global commitments to eliminating mother-to-child transmission of human immunodeficiency virus, syphilis, and hepatitis B, gaps remain in understanding the behavioral and systemic drivers of screening coverage in decentralized health systems such as Indonesia. This study aimed to analyze individual behavioral determinants and structural health system barriers affecting triple elimination screening coverage among pregnant women, focusing on perceived susceptibility and automatic compliance. A mixed-methods sequential explanatory study was conducted in Central Jakarta, Surabaya, and Karawang. The quantitative phase involved a cross-sectional survey of 1,224 pregnant women, with Health Belief Model variables analyzed using logistic regression. The qualitative phase comprised three …

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Perceptions Of Correctional Officers In Prison Environments And The Coping Mechanisms They Use To Support Work–Life Balance, Amiee C. Ruger Sep 2026

Perceptions Of Correctional Officers In Prison Environments And The Coping Mechanisms They Use To Support Work–Life Balance, Amiee C. Ruger

Walden Dissertations and Doctoral Studies

This qualitative study explored correctional officers’ lived experiences with occupational stress, coping strategies, work–life balance, and psychological well-being. The purpose of the study was to better understand correctional officers’ experiences working in high-stress correctional environments, including how they experienced and managed occupational stress, as well as the factors that influenced their psychological well-being. The Yerkes-Dodson law, Nixon’s human function curve, and the transactional model of stress and coping provided the theoretical framework for the study. Eight correctional officers were recruited using purposive and snowball sampling techniques. Semistructured interviews were conducted through the online meeting platform Zoom, and the data were …

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Poisonous And Injurious Vascular Plants Of The United States: An Introduction, James P. Smith Jr Sep 2026

Poisonous And Injurious Vascular Plants Of The United States: An Introduction, James P. Smith Jr

Botanical Studies

No abstract provided.

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Evaluating Peak Metamorphic Conditions Of The Kyanite-Bearing Rocks At Willis Mountain, Virginia, Usa, Emma J. Hunt, Peter Horvath, Connor R. Gregory, Jade D. Sabillon, Ethan H. Watson Sep 2026

Evaluating Peak Metamorphic Conditions Of The Kyanite-Bearing Rocks At Willis Mountain, Virginia, Usa, Emma J. Hunt, Peter Horvath, Connor R. Gregory, Jade D. Sabillon, Ethan H. Watson

Earth and Environmental Sciences Publications

Willis Mountain, near Dillwyn in central Virginia, is the world’s largest kyanite deposit located in the Chopawamsic Fm. of the Piedmont province. However, little is known about the temperature and pressure conditions under which the kyanite deposit and its surrounding rocks formed, compared with similar-aged rocks in the Blue Ridge province to the southwest. Willis Mountain is composed of kyanite-bearing muscovite schists to kyanite quartzites which contain up to 55% kyanite. The following methods were used to evaluate the metamorphic conditions, with multiple calibrations for each: phase equilibrium modelling; trace element thermometry (titanium in quartz and zirconium in rutile); garnet-biotite …

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Mcsa Forum Minutes 09/28/2026, Morris Campus Student Association Sep 2026

Mcsa Forum Minutes 09/28/2026, Morris Campus Student Association

Morris Campus Student Association

No abstract provided.

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Generalized Apostol-Bernoulli Functions And The Evaluation Of Character Sums, Brad Isaacson Sep 2026

Generalized Apostol-Bernoulli Functions And The Evaluation Of Character Sums, Brad Isaacson

Publications and Research

We introduce two types of generalized Apostol–Bernoulli functions attached to Dirichlet characters and express them by generalized Apostol–Bernoulli numbers. As a corollary, we obtain formulas expressing two families of character sums by generalized Apostol–Bernoulli numbers. These sums are twisted generalizations of sums introduced and studied by Arakawa, Berndt, Ibukiyama, Kaneko, Kim, Ramanujan, and Zaharescu in the context of modular forms and theta function identities.

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Dense Platinum Nanoparticles Confined In Mn-N-C Nanocages For Robust Heavy-Duty Pemfcs, Lei Zhao, Zhen-Min Cao, Jia-Yu Zuo, Ming-Liang Yang, Hong-Yan Qiao, Jun-Song Chen, Rui Wu Sep 2026

Dense Platinum Nanoparticles Confined In Mn-N-C Nanocages For Robust Heavy-Duty Pemfcs, Lei Zhao, Zhen-Min Cao, Jia-Yu Zuo, Ming-Liang Yang, Hong-Yan Qiao, Jun-Song Chen, Rui Wu

Journal of Electrochemistry

High-loading Pt cathodes are essential for heavy-duty proton exchange membrane fuel cells but suffer from a critical tradeoff between ionomer sulfonate poisoning and nanoparticle instability. Herein, we report a spatial confinement strategy to encapsulate dense Pt nanoparticles (~51.8 wt%) within Mn/N-co-doped mesoporous carbon nanocages (denoted as Pt-MnNC). This architecture excludes bulky ionomers to create an ionomer-shielded environment against sulfonate poisoning, while Mn-Nx-mediated strong metal-support interactions anchor the Pt nanoparticles to prevent agglomeration and further boost durability. In the 5 × 5 cm2 membrane electrode assembly tests, the Pt-MnNC catalyst delivers an exceptional power density of 1.26 W·cm …

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Efficient Acidic H2O2 Electrosynthesis Over Co Atoms Anchored On Nitrogen-Doped Hierarchical Porous Carbon, Xiao Huang, Zi-Hao Zhan, Hao-Xu Niu, Guan-Yu Luo, Jin-Tao Huang, Bo-Xuan Jin, De-Li Wang Sep 2026

Efficient Acidic H2O2 Electrosynthesis Over Co Atoms Anchored On Nitrogen-Doped Hierarchical Porous Carbon, Xiao Huang, Zi-Hao Zhan, Hao-Xu Niu, Guan-Yu Luo, Jin-Tao Huang, Bo-Xuan Jin, De-Li Wang

Journal of Electrochemistry

The two-electron oxygen reduction reaction (2e− ORR) presents a promising route for the on-site production of hydrogen peroxide (H2O2), offering a green alternative to energy-consuming anthraquinone process. However, the high selectivity toward the competing 4e− ORR over the desired 2e− pathway leads to low Faradaic efficiency for H2O2, posing a critical challenge in catalyst design. In this work, a nitrogen-doped hollow hierarchical porous carbon with anchored Co atoms (CoN/HPC) was constructed for high-performance H2O2 production. The as-prepared Co-N/HPC catalyst showed excellent 2e− ORR performance, achieving …

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Engineering Small-Sized Cations With Strong Solvation For High-Voltage Supercapacitors, Tong Huo, Pan Liu, Hao Chen, Peng Zhang, Zhen-Lei Chen, Guo-Fu Sun, Zhi-Qiang Shi, Jing Wang Sep 2026

Engineering Small-Sized Cations With Strong Solvation For High-Voltage Supercapacitors, Tong Huo, Pan Liu, Hao Chen, Peng Zhang, Zhen-Lei Chen, Guo-Fu Sun, Zhi-Qiang Shi, Jing Wang

Journal of Electrochemistry

Supercapacitors (SCs) have attracted much attention in the field of energy storage due to their high power density and long cycle life. However, their relatively low energy density limits their application in a wider range of fields. Methods to increase energy density include enhancing specific capacitance and extending operating voltage window. Herein, we report a novel electrolyte salt, tetramethylammonium bis(fluorosulfonyl)imide (TMA-FSI), the resulting electrolyte formed with propylene carbonate (PC), designated as TMF, exhibited a wide electrochemical stability window (ESW) of 5.09 V. On the one hand, we found that the small size of TMA+ enables it to enter the …

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Oral Health Equivalent To Body Health, Ahmed Jameel Obayes, Abeer Mohammed Ali Al-Garawyi Sep 2026

Oral Health Equivalent To Body Health, Ahmed Jameel Obayes, Abeer Mohammed Ali Al-Garawyi

Muthanna Medical Journal

Oral health comprises the palate, mouth and throat lining, tongue, lips, salivary glands, chewing muscles, nerves, and upper and lower jaw bones. Chronic mouth infections were related to ``diabetes, heart and lung disease, and stroke'' in a recent research. Our oral health influences our overall health. Understanding that tooth loss is usually caused by illness or injury rather than age is a crucial first step in preventing ``dental caries and periodontal disease''. This overview of evidence connects poor oral health to systemic disorders. A number of studies have shown a relationship between dental and general health, indicating ``poor oral health'' …

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A Fate-And-Transport Model For Diclofenac From Wastewater Treatment Plants To The Diyala–Tigris Rivers, Baghdad, Iraq, Mohammed A. Al-Ameri, Ghyda Y. Al Kindi, Noor S. Mahdi Sep 2026

A Fate-And-Transport Model For Diclofenac From Wastewater Treatment Plants To The Diyala–Tigris Rivers, Baghdad, Iraq, Mohammed A. Al-Ameri, Ghyda Y. Al Kindi, Noor S. Mahdi

Engineering and Technology Journal

Diclofenac is a widely used non-steroidal anti-inflammatory drug that is incompletely removed by conventional wastewater treatment. This study evaluates its fate and transport from consumption and excretion, through the three Al-Rustamiyah wastewater treatment plant (WWTP) units in Baghdad, to the Diyala River, the Tigris River, and the Al-Tuwaitha drinking-water intake. Discrete ``grab'' samples were collected during 12–14 November 2020 from WWTP influent and effluent streams and from river and intake sites. Diyala River concentrations ranged from 0.094 to 2.184 μg/L. At the Tigris confluence, diclofenac was 0.052 μg/L; the two immediate downstream measurements were below 0.01 μg/L …

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Geotechnical Enhancement Of Noncohesive Coal Mine Overburden Using Microbially Induced Calcite Precipitation And Fly Ash Stabilization For Sustainable Pavement Applications, Atul Gautam, Laxmikant Yadu Sep 2026

Geotechnical Enhancement Of Noncohesive Coal Mine Overburden Using Microbially Induced Calcite Precipitation And Fly Ash Stabilization For Sustainable Pavement Applications, Atul Gautam, Laxmikant Yadu

Journal of Sustainable Mining

The majority of the waste generated from opencast mining, termed as overburden (OB), is dumped adjacent to the mine boundary and poses long-term stability issues. Various studies have been carried out to assess the risk of dump slope failure, and treatment strategies have been accordingly recommended to strengthen this OB dump. However, scant works are reported to sustainably utilize this OB for construction works. This study aims to quantify the performance of stabilized noncohesive coal mine OB collected from Gondegaon opencast mine (OCM) in India. Stabilization was achieved using two techniques, namely microbially induced calcite precipitation (MICP) through Sporosarcina pasteurii …

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