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Analysis Of Source–Sink Organ Dynamics In Kaffir Lime (Citrus Hystrix Dc.) At Different Plant Ages, Siti Auliya Rahma, Rahmat Budiarto, Syariful Mubarok Dec 2025

Analysis Of Source–Sink Organ Dynamics In Kaffir Lime (Citrus Hystrix Dc.) At Different Plant Ages, Siti Auliya Rahma, Rahmat Budiarto, Syariful Mubarok

Jurnal Kultivasi

Kaffir lime (Citrus hystrix DC.) is a leafy spice commodity widely used as a culinary ingredient, in bio-pharmaceuticals, and as a raw material for essential oil production. Despite its high demand, leaf productivity remains relatively low, highlighting the need for improved cultivation practices. A better understanding of source–sink dynamics is essential, as leaf production is strongly influenced by the balance between assimilate-producing and assimilate-consuming organs. Therefore, this study aimed to evaluate the source-sink capacity of kaffir lime plants of different ages as a preliminary step toward identifying cultivation strategies to enhance leaf production. The experiment was conducted at Bale Tatanen …


Comparative Analysis Of Color, Texture, And Water Content In Three Shallot Cultivars At Different Harvest Ages, Rahma Wati Lestari, Kusumiyati, Syariful Mubarok Dec 2025

Comparative Analysis Of Color, Texture, And Water Content In Three Shallot Cultivars At Different Harvest Ages, Rahma Wati Lestari, Kusumiyati, Syariful Mubarok

Jurnal Kultivasi

Shallots are a major horticultural commodity with high economic value. The quality of shallots is determined not only by the quantity of the harvest but also by physical characteristics such as bulb color, texture, and water content. This study aims to evaluate the differences in these physical parameters in three popular local cultivars: Brebes, Sumenep, and Tuktuk, harvested at 56, 63, and 70 days after planting (DAP), respectively. This research uses a Randomized Block Design consisting of 9 treatment combinations and analyzed using the SmartstatXL application. Color measurements are conducted using the CIELAB method and converted to CIELCH and RGB …


Role Of Nano Edible Coating, Packaging, And Storage Temperature In Maintaining Color, Moisture Content, And Phenolic Compounds Of Straw Mushroom, Kiki Nuratni Sitompul, Syariful Mubarok, Kusumiyati Dec 2025

Role Of Nano Edible Coating, Packaging, And Storage Temperature In Maintaining Color, Moisture Content, And Phenolic Compounds Of Straw Mushroom, Kiki Nuratni Sitompul, Syariful Mubarok, Kusumiyati

Jurnal Kultivasi

Straw mushrooms are among the most sought-after edible mushrooms, but their harvest is highly perishable due to their high respiration and transpiration rates, leading to a decline in quality during storage. The application of nano edible coating can cover the surface of straw mushrooms and maintain their freshness, while packaging and storage at low temperatures can maintain quality by inhibiting respiration and enzymatic activity. This study aims to evaluate the effects of nano edible coating, packaging types, and different storage temperatures on the color, moisture content, and phenolic compounds of straw mushrooms. The study was conducted at the Horticulture Laboratory, …


A Review Of Bioactive Compounds Of Caesalpinia Sappan: Pre- And Post-Harvest Effect, Annisa Lugina Rachman, Santi Rosniawaty, Syariful Mubarok, Cucu Suherman, Yudithia Maxiselly Dec 2025

A Review Of Bioactive Compounds Of Caesalpinia Sappan: Pre- And Post-Harvest Effect, Annisa Lugina Rachman, Santi Rosniawaty, Syariful Mubarok, Cucu Suherman, Yudithia Maxiselly

Jurnal Kultivasi

Sappanwood (Caesalpinia sappan L.) is a shrub or small tree that thrives in tropical regions and has been widely distributed across various areas. It has long been used as a natural dye in textiles, cosmetics, and herbal beverages due to its content of various bioactive compounds. This literature review discusses the secondary metabolites in sappanwood, their health benefits, and strategies to enhance product quality through pre-harvest and post-harvest treatments. This literature review was conducted by searching for relevant journals on Google Scholar using relevant keywords. Sappanwood contains diverse secondary metabolites, including flavonoids, phenolics, anthraquinones, triterpenoids, steroids, alkaloids, and tannins, with …


In-Silico Test Of Myricetin, Phyllanthin, Luteolin Compounds Against Sars-Cov-2 Proteins, Vidia Noviyanti, Nuha Haifa Arifin, Hayu Ikfini, Rifki Febriansah Dec 2025

In-Silico Test Of Myricetin, Phyllanthin, Luteolin Compounds Against Sars-Cov-2 Proteins, Vidia Noviyanti, Nuha Haifa Arifin, Hayu Ikfini, Rifki Febriansah

Pharmaceutical Sciences and Research

Coronavirus disease 2019 (COVID-19), which emerged in late 2019 and was first detected in Indonesia in March 2020, has significantly reshaped the country’s public health landscape. Aside from the viral outbreak itself, a decline in immunity among the population due to excessive concern about the pandemic has also become a significant issue. This study aimed to evaluate the potential of myricetin, phyllanthin, and luteolin compounds as inhibitors of the SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus 2) virus by targeting the main protease and spike glycoprotein receptor-binding domain proteins through in silico molecular docking. Remdesivir and favipiravir were used as comparison …


Disrupting Cell Death: Ferroptosis And Pyroptosis Inhibition In Hepatic Ischemia-Reperfusion Injury Via Modulation Of Gpx4 And Cgas Pathways By Deferoxamine And Octreotide,, Rasha A. Tawfiq, Yasmeen Attia, Hameis M. Sleem, Mai Ghoneim Dr. Dec 2025

Disrupting Cell Death: Ferroptosis And Pyroptosis Inhibition In Hepatic Ischemia-Reperfusion Injury Via Modulation Of Gpx4 And Cgas Pathways By Deferoxamine And Octreotide,, Rasha A. Tawfiq, Yasmeen Attia, Hameis M. Sleem, Mai Ghoneim Dr.

Pharmacy

Hepatic ischemia-reperfusion injury (HIRI) is a significant complication of liver transplantation, often precipitating postoperative liver dysfunction/failure. Given the rising global prevalence of end-stage liver disease, which necessitates liver transplantation, protecting against HIRI is crucial. Here, we investigated the effects of octreotide (OCT), a pyroptosis inhibitor, and deferoxamine (DEF), a ferroptosis suppressor, individually and combined in the HIRI model. Their impact on cyclic GMP-AMP synthase/stimulator-of-interferon (cGAS/STING) genes and glutathione peroxidase 4 (GPX4) activity was explored. Male rats (n = 4–5) were subjected to 30 min ischemia followed by 3 h reperfusion and treated with OCT (75 μg/kg; 30 μg/kg, i.p. & …


Kuntze Metabolite Profile And Antioxidant Activity Of Vincetoxicum Villosum (Blume) Kuntze, Anjeli Rama Sari, Aceng Ruyani, Lily Ismaini, Endah Dwi Hartuti Dec 2025

Kuntze Metabolite Profile And Antioxidant Activity Of Vincetoxicum Villosum (Blume) Kuntze, Anjeli Rama Sari, Aceng Ruyani, Lily Ismaini, Endah Dwi Hartuti

Chimica et Natura Acta

Vincetoxicum villosum belongs to the Apocynaceae family. V. villosum is often used as a traditional medicine for treating jaundice, gallstones, kidney stones, hepatitis B, and liver diseases. This study aims to determine the metabolite profile and antioxidant activity of V. villosum to provide new information and serve as a reference for its safe use as a medicinal plant. The methods used to determine the metabolite profile involved GC-MS, and antioxidant activity was assessed using the DPPH method. GC-MS analysis showed that V. villosum leaf extract contains n-hexadecanoic acid, phytol, 9,12,15-octadecatrienoic acid (Z,Z,Z)-, and 2,4-di-tert-butylphenol which have potential antioxidant activity. The …


The Activity Of Unripe Wood Apple (Limonia Acidissima Groff) Peel And Flesh Extracts In Inhibiting Diarrhe-Causing Bacteria, Idar Idar, Ika Kurnia Sukmawati, Dewi Kurnia, Tina Siti Nurjanah, Lestari Hutasoit Dec 2025

The Activity Of Unripe Wood Apple (Limonia Acidissima Groff) Peel And Flesh Extracts In Inhibiting Diarrhe-Causing Bacteria, Idar Idar, Ika Kurnia Sukmawati, Dewi Kurnia, Tina Siti Nurjanah, Lestari Hutasoit

Chimica et Natura Acta

Diarrhea is characterized by having liquid stool more often than usual, typically occurring three or more times within a 24-hour period. While rarely fatal, it can disrupt daily life and is often treated with antibiotics due to pathogens like Bacillus cereus, Shigella flexneri, and Salmonella typhimurium. An overgrowth of Escherichia coli can also be a contributing factor. Recent studies suggest that unripe wood apples may have antibacterial properties. This study evaluates the antibacterial activity of extracts from the peel and flesh of the fruit against the bacteria, as mentioned earlier. Using disk diffusion, microdilution, and bioautography methods, it was found …


Statistical Validation Of The Microplate Reader For Antioxidant Activity Measurement Using The Dpph Assay, Rismawati Rismawati, Dikdik Kurnia, Ersanda Hafiz, Muhammad Ihda H. L. Zein Dec 2025

Statistical Validation Of The Microplate Reader For Antioxidant Activity Measurement Using The Dpph Assay, Rismawati Rismawati, Dikdik Kurnia, Ersanda Hafiz, Muhammad Ihda H. L. Zein

Chimica et Natura Acta

Antioxidants research has been garnering increased interest among researchers, particularly in the fields of medicine and health, focusing on both natural and synthetic antioxidants. The DPPH method is the most used approach for antioxidant analysis due to its efficiency, simplicity, and accuracy. This study aims to validate the sensitivity of the microplate reader compared to UV-Vis spectrophotometer, both used for measuring absorbance in the DPPH antioxidant test. The samples used in this study include ascorbic acid, gallic acid, and quercetin standards. Statistical validation in the DPPH antioxidant test includes precision testing, T-test, and % recovery test. Based on the statistically …


Potential Of Chitosan-Encapsulated Mango Leaf Extract Oemulsion As Fruit Packaging, Panji Setya Utama Putra, Damar Rastri Adhika, Lia Amelia Tresna Wulan Asri Dec 2025

Potential Of Chitosan-Encapsulated Mango Leaf Extract Oemulsion As Fruit Packaging, Panji Setya Utama Putra, Damar Rastri Adhika, Lia Amelia Tresna Wulan Asri

Chimica et Natura Acta

Fruits have a relatively short shelf life. One of the extensively researched preservation methods for fruits is edible coating. Edible coating is a method of coating food products with a polymer layer. Considering the environmental and sustainability aspects, edible coatings were synthesized from biodegradable polymers derived from polysaccharides. Chitosan is a widely developed and researched type of biopolymer due to its antimicrobial activity. In addition to antimicrobial activity, antioxidant properties are important in food packaging applications. Mango leaves (Mangifera indica L.) contain various secondary metabolites that play a role in antioxidant activity, such as mangiferin, gallic acid, flavonoids, and gallotanin. …


Study And Characterization Of Nitration Of Isovanillic Acid Derivatives Using Nmr And Mass Spectroscopy, Elvira Hermawati, Pipih Lutfi Sa'adah, Ade Danova, Didin Mujahidin, Iqbal Musthapa Dec 2025

Study And Characterization Of Nitration Of Isovanillic Acid Derivatives Using Nmr And Mass Spectroscopy, Elvira Hermawati, Pipih Lutfi Sa'adah, Ade Danova, Didin Mujahidin, Iqbal Musthapa

Chimica et Natura Acta

Isovanillic acid and its derivatives serve as precursors in the synthesis of EGFR tyrosine kinase inhibitors, which are used to treat cancer cell lines. A crucial step in this process is the nitration of isovanillic acid through nucleophilic aromatic substitution, resulting in 6-nitroisovanilic acid and its derivatives, which act as intermediates for forming a quinazolinone ring. However, this study revealed that direct nitration of isovanillic acid derivatives led to unexpected products, such as 3-hydroxy-4-methoxy-2,6-dinitrobenzoic acid (1) and 4-(3-(2-methoxy-4-nitrophenoxy)propyl)morpholine (4). Additionally, the optimal conditions for etherification of 2 with N-(3-chloropropyl)morpholine to produce 3 involved using Cs2CO3 in DMF and refluxing for …


Exploring The Synergistic Effect Of Curcumin On Gelatin Films For Real-Time Pork Freshness Assessment, Risna Erni Yati Adu, Gebhardus Djugian Gelyaman, Kristoforus Wilson Kia, Emirensiana Oki, Maria Desi Silab, Angelina Knaofmone Dec 2025

Exploring The Synergistic Effect Of Curcumin On Gelatin Films For Real-Time Pork Freshness Assessment, Risna Erni Yati Adu, Gebhardus Djugian Gelyaman, Kristoforus Wilson Kia, Emirensiana Oki, Maria Desi Silab, Angelina Knaofmone

Chimica et Natura Acta

A smart film based on hydromethanol-curcumin has been developed as a freshness detector for local packaged pork. It was fabricated using solution casting method by varying the curcumin content to determine its effect on the chemical, physical, mechanical and functional characteristics of the film. Film characteristics were determined using colorimeter, TGA, FTIR, SEM and bioactivity assay. Film response was analyzed in different pH buffer solutions, different acid base media and pork samples during the storage period. Film characteristics such as antioxidant, antibacterial activity and surface color was improved by increasing curcumin concentration. On the other hand, mechanical dan physicochemical characteristics …


Network Pharmacology Of Ki Encok (Plumbago Zeylanica Linn) Plant As A Treatment For Osteoarthritis, Mitayani Purwoko, Trisnawati Mundijo, Yoshiko Widyadi Dec 2025

Network Pharmacology Of Ki Encok (Plumbago Zeylanica Linn) Plant As A Treatment For Osteoarthritis, Mitayani Purwoko, Trisnawati Mundijo, Yoshiko Widyadi

Chimica et Natura Acta

One of the plants in Indonesia used by the community to treat gout or Osteoarthritis (OA) is the Ki Encok plant (Plumbago zeylanica Linn). However, it is currently unknown what active substances play a role in the therapy process for gout or OA and what the pathway is. This study aimed to predict the pharmacological mechanism of the active content of Encok leaves against OA disease. This study used an in silico experimental test. The content of active plant substances was extracted from IMPPAT and KNAPSACK. Then, the target proteins of all these active substances were searched for, including target …


Taking From The Most Vulnerable: Legal Implications Of Seizing Federal Benefits From Foster Kids, Lucy Johnston-Walsh Dec 2025

Taking From The Most Vulnerable: Legal Implications Of Seizing Federal Benefits From Foster Kids, Lucy Johnston-Walsh

Seton Hall Law Review

No abstract provided.


In Silico Approach Of Flavonol In Hibiscus Sabdariffa As Proteasome Inhibitors Targeting The Ubiquitin-Proteasome Pathway, Nur Amalia Choironi, Syakhsiyatunnisa Galuh Prameswari, Hanif Nasiatul Baroroh Dec 2025

In Silico Approach Of Flavonol In Hibiscus Sabdariffa As Proteasome Inhibitors Targeting The Ubiquitin-Proteasome Pathway, Nur Amalia Choironi, Syakhsiyatunnisa Galuh Prameswari, Hanif Nasiatul Baroroh

Chimica et Natura Acta

Multiple myeloma is a blood cancer characterized by the abnormal proliferation of B cells that accumulate in the bone marrow. The proliferation of these cells depends on the role of the proteasome through the ubiquitin-proteasome pathway to degrade proteins that regulate the cell cycle, apoptosis, and stress response. The proteasome is the main target of proteasome inhibitors for the treatment of multiple myeloma. Flavonoid compounds in Hibiscus sabdariffa flowers, such as isoquercitrin, quercitrin, quercetagetin, isorhamnetin, and astragalin, have the potential to act as proteasome inhibitors. The insilico study aims to determine the potential of these compounds as proteasome inhibitors based …


Towards Fair Sequential Resource Allocation: Algorithmic Designs, Interventions, And Evaluations, Ashwin Kumar Dec 2025

Towards Fair Sequential Resource Allocation: Algorithmic Designs, Interventions, And Evaluations, Ashwin Kumar

McKelvey School of Engineering Graduate Student Theses & Dissertations

This thesis develops a comprehensive framework for fair sequential resource allocation in multi-agent systems where a centralized allocator coordinates actions under global feasibility constraints, while satisfying preferences of different agents. Ranging from ridesharing platforms and homelessness intervention programs to power grid management, such systems play a critical role in shaping access to essential resources. Yet, existing approaches to resource allocation often prioritize aggregate utility, leading to systematic inequities across individuals and groups, particularly in sequential settings where decisions unfold over time. To address this challenge, we introduce the Distributed Evaluation, Centralized Allocation (DECA) framework, which unifies a broad class of …


Proceedings Of The 4th Research In High Performance Sports Colloquium (Hpsc 2025), Sultan Qaboos University Dec 2025

Proceedings Of The 4th Research In High Performance Sports Colloquium (Hpsc 2025), Sultan Qaboos University

Sultan Qaboos University Medical Journal

No abstract provided.


Exploring The Role Of Human Pioneer Factors On Hiv Transcription Through Rna Interference Screening, Zachary Comella Dec 2025

Exploring The Role Of Human Pioneer Factors On Hiv Transcription Through Rna Interference Screening, Zachary Comella

Harriet L Wilkes Honors College Theses 2020 - Present

Per the World Health Organization, approximately 40 million individuals live with the Human Immunodeficiency Virus (HIV) worldwide. Antiretroviral therapy (ART) against HIV limits viral replication but does not eradicate the virus. This is mainly due to the presence of long lived CD4+ T cells harboring transcriptionally silenced integrated proviruses, hidden from the immune system, which are, however, ready to reinitiate a spreading infection as soon as treatment is interrupted. To develop novel strategies to block virus reactivation without treatment, a deep understanding of host factors contributing to HIV transcriptional regulation is needed. Pioneer factors (PFs) are a unique type of …


Accessing Cation And Anion Redox In Mixed-Valent One-Dimensional Iron-Chalcogenides, Na1.5fe1s2–Xsex(X = 0, 1, And 2), For Na-Ion Batteries, Santhoshkumar Sundaramoorthy, Milad Aghayi-Anaraki, Sutapa Bhattacharya, Amitava Choudhury Dec 2025

Accessing Cation And Anion Redox In Mixed-Valent One-Dimensional Iron-Chalcogenides, Na1.5fe1s2–Xsex(X = 0, 1, And 2), For Na-Ion Batteries, Santhoshkumar Sundaramoorthy, Milad Aghayi-Anaraki, Sutapa Bhattacharya, Amitava Choudhury

Chemistry Faculty Research & Creative Works

Sodium-ion batteries (NIBs) have attracted considerable attention as a cost-effective and sustainable alternative to lithium-ion batteries (LIBs), owing to the abundance and low cost of sodium resources. Here, we investigate previously reported mixed-valent (Fe3+/2+) one-dimensional (1D) iron chalcogenides: Na1.5FeS2, its selenide analogue Na1.5FeSe2, and newly developed solid solution Na1.5FeSSe, focusing on their synthesis, structural characterization, and electrochemical performance in NIBs. While the full Fe2+sulfide version (NaFeS2) of the compound is explored in solid-state cells for its dual cation–anion redox mechanism, we reveal the effect of anion substitution on the electrochemical behavior of Na1.5FeS2–xSex(x = 0, 1, …


A Systematic Review Of Teaching And Learning In The Context Of Arabic Diglossia, Hanada Taha Thomure, Haitham Taha, Taline Sabella, Rabab Saleh Dec 2025

A Systematic Review Of Teaching And Learning In The Context Of Arabic Diglossia, Hanada Taha Thomure, Haitham Taha, Taline Sabella, Rabab Saleh

All Works

Arabic is a diglossic language in which standard Arabic coexists with diverse spoken varieties, posing distinct challenges for language acquisition and instruction. Understanding how this context shapes bib_meiseles_1980 educational outcomes is essential for improving Arabic language teaching and learning. Following PRISMA guidelines, we searched eight education and social science databases, and relevant grey literature (1970–2021), screening 927 Arabic and English records and including 101 studies. Descriptive review synthesis identified five recurring themes: Diglossic distance, achievement gap, prestige and attitudes, policy, and exposure to Standard Arabic, including parental engagement. Recommendations relevant for educators, policymakers, and researchers include curriculum strategies include integrating …


Geoscience Letters: From Founding Vision To Shaping The Future Of Geoscience, James Terry, Cheng‐Ku Yu Dec 2025

Geoscience Letters: From Founding Vision To Shaping The Future Of Geoscience, James Terry, Cheng‐Ku Yu

All Works

No abstract provided.


Gwtc-4.0: An Introduction To Version 4.0 Of The Gravitational-Wave Transient Catalog, A. G. Abac, Teviet Creighton, Mario C. Diaz, Raul Alberto Espinosa Perez, J. Lawrence, Francisco Llamas Villarreal, Soma Mukherjee, Volker Quetschke, Wenhui Wang Dec 2025

Gwtc-4.0: An Introduction To Version 4.0 Of The Gravitational-Wave Transient Catalog, A. G. Abac, Teviet Creighton, Mario C. Diaz, Raul Alberto Espinosa Perez, J. Lawrence, Francisco Llamas Villarreal, Soma Mukherjee, Volker Quetschke, Wenhui Wang

Physics & Astronomy Faculty Publications

The Gravitational-Wave Transient Catalog (GWTC) is a collection of short-duration (transient) gravitational-wave signals identified by the LIGO–Virgo–KAGRA Collaboration in gravitational-wave data produced by the eponymous detectors. The catalog provides information about the identified candidates, such as the arrival time and amplitude of the signal and properties of the signal’s source as inferred from the observational data. GWTC is the data release of this dataset, and version 4.0 extends the catalog to include observations made during the first part of the fourth LIGO–Virgo–KAGRA observing run up until 2024 January 31. This Letter marks an introduction to a collection of articles related …


Adolescent Children’S Risk Of Long Covid-19 Syndrome Based On Diet And Demographic Factors From An Online Survey, Christopher Waskewich Dec 2025

Adolescent Children’S Risk Of Long Covid-19 Syndrome Based On Diet And Demographic Factors From An Online Survey, Christopher Waskewich

Journal of Social, Behavioral, and Health Sciences

Limited information is available on how coronavirus disease 2019 (COVID-19) has [JG1] affected adolescents regarding long-term health risks. This quantitative study focused on the effect of U.S. adolescents’ daily diet, race/ethnicity, levels of income, family level of education, access to health care, age, and comorbidities on the risks of long COVID-19 syndrome. I used the constructs of the health belief model to understand the impact of those variables. The online survey results (N = 298) found that adolescents whose daily vegetable consumption was more than daily recommendations (2–3 cups) had a lower odds ratio of having long COVID-19 syndrome …


Behavioral Health Interventions For Pediatric Acute Lymphoblastic Leukemia: A Scoping Review, Carolyn R. Bates, Sydney M. Gibson, Peter R. Johnson, Sarah L. Hunt, Patrick Dyjak, Courtney A. Gibson, Christina M. Sharkey, Kimberly L. Klages Dec 2025

Behavioral Health Interventions For Pediatric Acute Lymphoblastic Leukemia: A Scoping Review, Carolyn R. Bates, Sydney M. Gibson, Peter R. Johnson, Sarah L. Hunt, Patrick Dyjak, Courtney A. Gibson, Christina M. Sharkey, Kimberly L. Klages

Student Publications

Background: Acute Lymphoblastic Leukemia (ALL) is the most common pediatric cancer, with significant advancements in treatment leading to over 90% five-year event-free survival rates in developed countries. However, disruptions in health behaviors during treatment, such as diet, activity, and sleep, can negatively impact treatment tolerance and increase risks of late effects. This scoping review aimed to assess the breadth of existing behavioral health interventions designed to improve immediate and long-term health outcomes for children and adolescents receiving treatment for ALL.

Method: The review focused on behavioral interventions for children (ages 2-18 years) undergoing active treatment for ALL. We followed the …


To Jump Or Not To Jump: Comparing Effects Of Phenotypic Plasticity On The Visual Responses And Escape Behavior Of Locusts And Grasshoppers, Soumi Mitra, Saina Namazifard, David Mario Bellini, Alexis Leigh Sarne, Bidisha Halder, Margaret Ruth Eisenbrandt, Aliya Macknojia, Jiayi Luo, Samme Xie, Hojun Song, Chenghang Zong, Fabrizio Gabbiani, Richard Burkett Dewell Dec 2025

To Jump Or Not To Jump: Comparing Effects Of Phenotypic Plasticity On The Visual Responses And Escape Behavior Of Locusts And Grasshoppers, Soumi Mitra, Saina Namazifard, David Mario Bellini, Alexis Leigh Sarne, Bidisha Halder, Margaret Ruth Eisenbrandt, Aliya Macknojia, Jiayi Luo, Samme Xie, Hojun Song, Chenghang Zong, Fabrizio Gabbiani, Richard Burkett Dewell

Faculty, Staff and Students Publications

Locusts exhibit remarkable phenotypic plasticity changing their appearance and behavior from solitary to gregarious when population density increases. These changes include morphological differences in the size and shape of brain regions, but little is known about plasticity within individual neurons and alterations in behavior not directly related to aggregation or swarming. We investigated looming escape behavior and the properties of a well-studied collision-detection neuron in gregarious and solitarious animals of three closely related species, the desert locust (Schistocerca gregaria), the Central American locust (S. piceifrons) and the American bird grasshopper (S. americana). For this neuron, the lobula giant movement detector …


Tunable Phase-Change Metasurfaces Coupled With Mid-Infrared Molecular Vibrations, Haotian Tang, Liliana Stan, David A. Czaplewski, Xiaodong Yang, Jie Gao Dec 2025

Tunable Phase-Change Metasurfaces Coupled With Mid-Infrared Molecular Vibrations, Haotian Tang, Liliana Stan, David A. Czaplewski, Xiaodong Yang, Jie Gao

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Chiral optical meta surfaces have emerged as a promising platform in coupling with molecular vibrational fingerprints through the enhanced light-matter interaction under different circularly polarized light illumination. This work reports the mode coupling between the mid-infrared phonon vibrations of polymethyl methacrylate (PMMA) molecules, and the thermally tunable chiral meta surfaces based on the phase-change material Ge₂Sb₂Te₅ (GST-225). Phase-change chiral meta surfaces with high circular dichroism (CD) in absorption and tunable plasmonic resonance in the frequency range of 48-56 THz are demonstrated, which covers the phonon vibrational frequency of PMMA molecules at 52 THz. The mode splitting features are observed in …


Effectiveness Of Mindfulness For Psychological Distress And Sleep Disturbances In The Post-Covid Population., Anjum Padyal Dr. Dec 2025

Effectiveness Of Mindfulness For Psychological Distress And Sleep Disturbances In The Post-Covid Population., Anjum Padyal Dr.

International Journal of Exercise Science: Conference Proceedings

Effectiveness of Mindfulness for Psychological Distress and Sleep Disturbances in the Post-COVID Population.

DR. ANJUM PADYAL, DHRUMI PATEL

Laboratory Name; Kinesiology Department; California State University,Northridge; Northridge, CA

Category: Masters

Advisor / Mentor: Padyal, Anjum ([email protected])

ABSTRACT

The COVID-19 pandemic has been associated with heightened stress, anxiety, depression, and widespread sleep disturbances among adults. Mindfulness-based interventions (MBIs) are increasingly promoted as non-pharmacological strategies to improve psychological health.PURPOSE: This review aims to determine whether MBIs are effective in reducing psychological distress and improving sleep quality among adults in the post-COVID era compared to standard care or no intervention.. METHODS: …


Accuracy Of The Garmin Instinct For Heart Rate Monitoring During Forearm Exercise With And Without Blood Flow Restriction, Danilo Dullas, Clifford Sanders, Yahtziri Martinez, Tevin Perez, Alana Tucker, Amelia Wolfe, Juni Timmins, Catalina M. Kerwin, Kynlee Sperry, Cannon Jones, Heather Zent, Sam Brinkerhoff, Setareh Zarei, Jeff Guzman, Rodolfo I. Mejia, Nathaniel Bodell, James W. Navalta, Merrill Funk, Jeffrey Cowley, Marcus M. Lawrence Dec 2025

Accuracy Of The Garmin Instinct For Heart Rate Monitoring During Forearm Exercise With And Without Blood Flow Restriction, Danilo Dullas, Clifford Sanders, Yahtziri Martinez, Tevin Perez, Alana Tucker, Amelia Wolfe, Juni Timmins, Catalina M. Kerwin, Kynlee Sperry, Cannon Jones, Heather Zent, Sam Brinkerhoff, Setareh Zarei, Jeff Guzman, Rodolfo I. Mejia, Nathaniel Bodell, James W. Navalta, Merrill Funk, Jeffrey Cowley, Marcus M. Lawrence

International Journal of Exercise Science: Conference Proceedings

Wearable devices are widely used to monitor heart rate (HR) during exercise, but their accuracy under blood flow restriction (BFR) remains uncertain. Because BFR is increasingly applied in rehabilitation and strength training, accurate HR monitoring is essential for both safety and prescription. The PURPOSE of this study was to evaluate the reliability of the Garmin Instinct smartwatch for measuring HR during forearm exercise with and without BFR, compared to a chest-strap criterion device. METHODS: Twenty-three healthy adults (9 females, 14 males; mean age = 24.74 ± 8.19 years) participated in a repeated-measures design. After providing consent and being fitted with …


Validity Of The Polar Verity Sense In Measuring Heart Rate During A Hand Grip Assessment With Blood Flow Restriction, Jeff Guzman, James W. Navalta, Marcus M. Lawrence, Nathaniel Bodell, Jeffrey Cowley, Setareh Zarei, Rodolfo I. Mejia, Catalina M. Kerwin, Kynlee Sperry, Juni Timmins, Cannon Jones, Sam Brinkerhoff, Danilo Dullas, Clifford Sanders, Yahtziri Martinez, Tevin Perez, Alana Tucker, Amelia Wolfe, Merrill Funk Dec 2025

Validity Of The Polar Verity Sense In Measuring Heart Rate During A Hand Grip Assessment With Blood Flow Restriction, Jeff Guzman, James W. Navalta, Marcus M. Lawrence, Nathaniel Bodell, Jeffrey Cowley, Setareh Zarei, Rodolfo I. Mejia, Catalina M. Kerwin, Kynlee Sperry, Juni Timmins, Cannon Jones, Sam Brinkerhoff, Danilo Dullas, Clifford Sanders, Yahtziri Martinez, Tevin Perez, Alana Tucker, Amelia Wolfe, Merrill Funk

International Journal of Exercise Science: Conference Proceedings

Blood flow restriction (BFR) training has acquired significant attention in rehabilitation and performance sciences. Polar is a popular heart rate (HR) device manufacturer, Polar Electro OY. PURPOSE: The purpose of this study was to investigate the validity of HR from the Polar Verity Sense biceps band vs the Polar H10 chest strap during a hand grip assessment with blood flow restriction. METHODS: Twenty-three adults (9 females, 14 males, Identified otherwise n = 0; age=24.74±8.19 years, height = 172 cm (SD =9) Mass = 79kg (SD= 18.5) were recruited via convenience sampling. Participants were asked to do a warm-up including 5-min …


The Evolution And Impact Of The Token Black Friend Trope In American Media, Sophie E. Rice, Kurt Milberger Dec 2025

The Evolution And Impact Of The Token Black Friend Trope In American Media, Sophie E. Rice, Kurt Milberger

Symposium of Student Scholars

Abstract

This research explores the history of the token Black friend trope in American media and how these misrepresentations continue to influence popular culture and negatively impact Black Americans. Historically, the token Black friend stereotype singles out Black characters to fill gaps in the plot through comedy, intelligence, or self-sacrifice, all while being excluded from the white protagonist’s larger narrative. The prevalence of this trope is apparent through several contemporary and classic examples, which are used to evaluate the effects of the token Black friend trope on American culture. To deconstruct these misrepresentations, this essay supplements these examples with scholarship …