Digital Commons Network^™

Teacher Bias And Elementary Student Disciplinary Outcomes, Madeline A. Griffitt

Graduate Theses, Dissertations, and Capstones

The discipline of students has long been an issue in schools. Children and teenagers are just that, and they will misbehave. However, the discipline gap clearly indicates that responses to misbehavior are different for different students (Lorenzetti & Johnson, 2023; Santiago-Rosario et al., 2021). Black students are disciplined more frequently and more severely than any of their peers (Kupchik & Ward, 2014; Welsh & Rodriguez, 2024). This study investigates what, if any, relationship exists between a teacher’s race, gender, age, and bias score (as measured by Project Implicit’s (n.d.) single category race implicit bias test) and the number of referrals …

An Interpretable Hybrid Deep And Reinforcement Learning Paradigm For Glioma Prognosis, Renuga Devi M Ms

Theses and Dissertations

Brain tumors are highly aggressive and lethal types of cancer, particularly gliomas. These cancerous growths show complicated pathophysiological behaviours and with poor prognosis despite therapeutic advances. Due to their biological differences and infiltrating growth, as well as overlapping radiological characteristics, they pose great difficulty in diagnosis, grading, and survival prediction. Artificial intelligence technology, which includes machine learning , deep learning, and reinforcement learning has developed into a new paradigm for the automation of brain tumor diagnostics and personalized treatment. The main goal of this study is to create an integrated AI-based framework that can perform brain tumor segmentation, grading and …

Development Of Deep Fused Neural Architecture For Ancient Tamil Palm-Leaf Manuscript Recognition, Hariharan P Mr

Theses and Dissertations

Digitizing Tamil palm-leaf manuscripts is important for education, communication, and the preservation of cultural heritage. The complex structure of the Tamil script, the wide range of handwriting styles, and the degradation seen in ancient Tamil palm-leaf manuscripts make these texts very difficult to read and understand. Digital Image Processing (DIP), document analysis techniques, and traditional Optical Character Recognition (OCR) are unable to handle noise, background interference, faded ink, and limited labelled data, motivating the need for robust, effective Deep Learning (DL)- based solutions.

As a prerequisite to understanding and designing effective recognition systems for ancient manuscripts, this thesis first examines …

In Vitro And In Silico Analysis Of The Antibacterial Activity Of Bioactive Compounds Extracted From Pineapple Peel, Wafa Mohammad Sadik, Iman Tajer Abdullah, Lana Abed Alnajar

Makara Journal of Science

Antibiotic resistance is a critical global challenge that requires the discovery of alternative therapeutic agents. Plants -derived compounds, such as those found in Ananas comosus (pineapple)peel, offer promising antibacterial potential. This study aimed to evaluate the antibacterial activity of pineapple peel extract using both in vitro and in silico approaches. Ethanolic extracts of pineapple peel were fractionated using silica gel chromatography, and the resulting fractions were analyzed by GC-MS. Antibacterial activity was tested against Gram-positive and Gram-negative pathogens using the agar well diffusion method, and the inhibition zones were recorded. Molecular docking was performed to assess the interaction of identified …

Dietary Oil From Hermetia Illucens L. Larvae Promotes Weight Gain And Alters Leukocyte Profiles In Mus Musculus L, Rudy Agung Nugroho Ran, Reni Kurniati, Widya Putri Ambar Sari, Reynaldo Imanuel Sompotan, Retno Aryani, Hetty Manurung, Rudianto Rudianto

Makara Journal of Science

The escalating global demand for high-quality animal-derived proteins has driven the search for sustainable alternatives. Black soldier fly larvae (BSFL; Hermetia illucens L.) oil presents a promising option, by addressing organic waste management while providing nutrient-rich feed. This study evaluated the effects of dietary supplementation with BSFL oil on growth performance, hematological characteristics, and blood lipid profiles in mice (Mus musculus). Male mice were randomly assigned to five groups (n = 5): positive control (fish oil, 5 mL/kg body weight [BW]), negative control (Aquadest, 5 mL/kg BW), and three treatment groups receiving BSFL oil at 2.5, 5, and …

Performance Of Membrane Bioreactor In Nitrogen Removal Using Anammox Bacteria Cultivated From Lake Koto Baru, Zulkarnaini Zulkarnaini, Tiffany Azhra Amanda, Alqadri Asri Putra, Puti Sri Komala, Dewi Nilawati, Widyarani Widyarani, Tarzan Sembiring, Panji Cahya Mawarda, Athanasia Amanda Septevani, Mia Miranti Rustama, Rina Andriyani

Makara Journal of Science

Anaerobic ammonium oxidation (anammox) is the biological conversion of ammonium to nitrogen gas (N₂) using nitrite as an electron acceptor. This study evaluated the performance of a membrane bioreactor (MBR) in nitrogen removal at room temperature using Candidatus Brocadia fulgida, an anammox bacterium previously cultivated from Lake Koto Baru, Tanah Datar, Indonesia. The MBR was operated for 48 days with a hydraulic retention time of 24 h under a continuous supply of ammonium and nitrite, with both substrates provided at influent concentrations of 70, 150, and 250 mg-N/L. Samples were collected twice a week and analyzed via …

Exploring The Lived Experiences Of African American Women In Counseling For Body Dysmorphia, Sitonja Valenzuela

Walden Dissertations and Doctoral Studies

African American women may experience body dysmorphia differently due to cultural, racial, and societal influences that shape their body perceptions and counseling experiences. Guided by a Heideggerian theoretical foundation, this hermeneutic phenomenological study aimed to explore how African American women experience receiving counseling for body dysmorphia in the United States. The guiding research question was: How do African American women with body dysmorphia experience receiving help in counseling? Eight African American women participated in in-depth, semi-structured interviews, and data analytic procedures were analyzed using the hermeneutic circle. Key findings revealed body dysmorphia as a persistent, embodied experience shaped by racialized …

The Rider (2026-03-30), Daniela Chapa-Reyes

The Rider Archives

Vol. 11, No. 24

New Distributional Record Of Dacus Persicus (Diptera: Tephritidae), A Biocontrol Agent Of Calotropis Procera (Apocynaceae), From Rahim Yar Khan, Punjab, Pakistan, Muhammad Adnan Bodlah, Imran Bodlah, Aleena Kanwal, Alishbah Mohsin, Ayesha Younas, Muhammad Tariq Siddique, Hafiz Muhammad Zia Ullah Ghazali, Muhammad Salman Yousafzai

Journal of Bioresource Management

The tephritid species Dacus persicus Hendel (Diptera: Tephritidae) exhibits strict host specificity to Calotropis species and is known as a destructive seed feeder of Calotropis procera. During field surveys, D. persicus larval stages were obtained from infested fruits of C. procera whereas adults were collected through sweep net sampling. This study documents the occurrence of D. persicus from southern district of Punjab, thereby extending its known distribution within the province beyond previous records from northern Punjab. Adult’s specimens were reared from field collected fruits and net-sweeping. Adults were identified based on detailed morphological examination of external characters and female …

Recovery Of Bioenergy From Industrial Wastewater Using Microbial Fuel Cell, Syed Wamiq Ali, Ghulam Mujtaba, Manzoor Ahmed Sanjrani, Falak Shad

Journal of Bioresource Management

Water problems and Energy demands are increasing particularly in developing countries. Researchers are looking for sustainable technologies that can address increasing energy and environmental concerns. Major reasons behind those emerging concerns are industrialization and rapid development. There is need of sustainable technology which can solve wastewater issues and fulfill energy demand. One of the emerging technologies that have been studied comprehensively is Microbial Fuel Cell (MFC). It is a bio-electrochemical conversion technology that converts organic substrate into electrical energy. Chemical Oxygen Demand (COD) is removed as a result of microbial metabolism of organic substrate. Even through technical and economic aspects …

Dementia Knowledge Levels Among Adolescents In England, Esra Hassan, Ben Hicks, Naji Tabet, Nicolas Farina

Peninsula Medical School

Objectives: Raising awareness of dementia in the general public is a key dementia policy. Adolescents are one population whose levels of dementia knowledge we have little understanding about. In this cross-sectional survey study, we aimed to capture the level of dementia knowledge in adolescents from different socio-demographic groups and to explore the factors associated with adolescents’ dementia knowledge. Method: We recruited 1,371 adolescents aged 11-18 years across England. Adoeslescents were asked to complete a survey that included dementia knowledge items from the The Northern Ireland Life and Times Survey. Descriptive statistics, a logistic regression, and cross-tabulations were used to explore …

Pathogenic Variants In The Cohesin Loader Subunit Mau2 Underlie A Distinct Cornelia De Lange Syndrome Subtype., Ilaria Parenti, Alina Hesters, Marta Gil-Salvador, Laura Duffy, Deniz Kanber, Jasmin Beygo, Jennifer Kerkhof, Laura Steenpaß, Elsa Leitão, Julia Woestefeld, Philip M. Boone, Emeline M. Kao, Lama Alabdi, Hesham M. Aldhalaan, Fowzan S. Alkuraya, Muneera J. Alshammari, Stylianos E. Antonarakis, Donald Basel, Kevin Cassinari, Laurana De Polli Cellin, Amanda R. Clause, Alexander Augusto De Lima Jorge, Andréa De Castro Leal, Stephan C. Collins, Benjamin Durand, Juliane Eckhold, Mais O. Hashem, Parul Jayakar, Arif O. Khan, Kohji Kato, Regina Kubica, Gholson J. Lyon, Elaine Marchi, Julie Mccarrier, Lara K. Kimmig, Seiji Mizuno, Gael Nicolas, Yosuke Nishio, Tomoo Ogi, Juan Pié, Jordyn Prell, Beatriz Puisac, Feliciano J. Ramos, Emmanuelle Ranza, Claire Redin, Eric T. Rush, Shinji Saitoh, Hanan E. Shamseldin, Susan Starling, Esteban Astiazaran-Symonds, Sara H. Eltahir, Alma Kuechler, Bekim Sadikovic, Binnaz Yalcin, Kerstin S. Wendt, Frank J. Kaiser

Manuscripts, Articles, Book Chapters and Other Papers

The role of the cohesin complex depends on the cohesin loader proteins NIPBL and MAU2. While NIPBL variants are a major cause of Cornelia de Lange Syndrome (CdLS), the role of MAU2 in disease is unclear. We describe 18 individuals carrying 15 heterozygous MAU2 variants and demonstrate pathogenicity through functional analyses. In-frame MAU2 variants predominantly impair NIPBL-MAU2 interaction, whereas truncating variants cause MAU2 haploinsufficiency and lead to NIPBL reduction. Most individuals exhibit a DNA methylation profile compatible with the CdLS episignature. We also describe two MAU2-specific episignatures that reflect variant-dependent molecular consequences. Affected individuals display a wide range of phenotypes, …

The Relationship Between Smartphone Screen Time Duration And Individual Chronotype: A Systematic Literature Review, Diego Sergio Giasia Lumbantobing, Thalia Altamilano Pramudya

Jurnal Epidemiologi Kesehatan Indonesia

The rapid increase in smartphone use over the past decade led to prolonged screen time across age groups, particularly during nighttime hours. Exposure to artificial light and pre-sleep digital activities was associated with circadian rhythm disruption and alterations in individual chronotype. This systematic literature review aimed to synthesize empirical evidence on the relationship between smartphone screen time duration and individual chronotype across all age groups and to identify key moderating factors influencing this association. The review was conducted in accordance with PRISMA 2020 guidelines. Literature searches were performed in PubMed, Scopus, and ScienceDirect for studies published between 2015 and 2025. …

Prevalence And Determinant Factors Of Depression Among Pregnant Women In Poned Health Center In Tangerang City Area, Dian Geumala Hayati, Sudijanto Kamso, Popy Yuniar, Yuli Puspita Devi

Jurnal Epidemiologi Kesehatan Indonesia

According to World Health Organization (WHO), approximately 10% of pregnant women experience mental disorders, with depression being particularly prevalent. In developing countries, this rate is was even higher, reaching 19.8% after childbirth and 15.6% during pregnancy. Various studies conducted in Indonesia show that the prevalence of depression among pregnant women ranges widely, from 21.4% to 26.2%.This study aimed to determine the prevalence and risk factors associated with depression during pregnancy in pregnant women at the PONED Community Health Center in Tangerang City Area. A facility-based cross-sectional study was conducted with 105 pregnant women attending antenatal check-ups at the 17 PONED …

Patterns Of Multimorbidity Among Low-Income Adults Who Smoke With Implications For Tailored Interventions: A Cluster Analysis Using A Mixture Of Bernoulli Model, Monique T. Cano, Michael R. Lindstrom, Oscar F. Rojas Perez, Ricardo F. Muñoz

School of Mathematical & Statistical Sciences Faculty Publications

Introduction: Smoking cigarettes remains a leading modifiable risk factor for preventable health conditions. In the United States, the health burden of smoking disproportionately impacts low-income individuals. Multimorbidity is common in this group, complicating treatment and worsening outcomes. Identifying multimorbidity clusters can support targeted, individualized interventions. This study aimed to identify multimorbidity clusters among individuals who smoke and experience economic hardship and provide clinical recommendations to enhance health outcomes.

Method: Individuals who smoke and experience economic hardship (N = 60) were recruited from the San Francisco Health Network (SFHN) and were assessed for physical and mental conditions. Cluster analysis was …

Status Of Soils In Protected Areas With Different Management Objectives In Lowland Rainforest, Southwest Nigeria, Bolanle Lisa Olajiire-Ajayi, Adeniyi Sulaiman Gbadegesin, Omotosho Ayodele Ogidan

Journal of Bioresource Management

Understanding soil properties is fundamental to sustaining the ecological integrity of protected forest ecosystems. This study examined the influence of two management categories; Strict Nature Reserve (SN) and Natural Park (NP) on soil physicochemical properties within the lowland rainforest of southwestern Nigeria. Fourteen composite soil samples, six from SN and eight from NP, were analyzed for texture, bulk density (BD), pH, organic carbon (OC), total nitrogen (TN), available phosphorus (AP), exchangeable bases (Ca²⁺, Mg²⁺, K⁺, Na⁺), and cation exchange capacity (CEC); base saturation (BS) was also determined. Both management categories exhibited sandy loam to loamy sand textures, typical of gneissic …

A Challenging Presentation Of Mycoplasma Pneumoniae: Mild Hepatic Dysfunction With Persistent Leukocytosis In A Pediatric Patient, Robert J. Heins, Sierra Scott, Stephen Mock

Student Publications

Mycoplasma pneumoniae (MP) is a common pediatric respiratory pathogen that can rarely present with extrapulmonary manifestations such as hepatic involvement. Recognition of hepatic dysfunction in this context is important for accurate diagnosis and timely therapy. A five-year-old female with asthma presented with fever, cough, fatigue, pruritus, and scleral icterus. Laboratory evaluation revealed leukocytosis, elevated C-reactive protein, mild transaminitis, direct hyperbilirubinemia, elevated PT/PTT, and normocytic anemia. Infectious and hepatic workups were initially unrevealing. The patient showed gradual clinical improvement while receiving empiric ceftriaxone but had persistent leukocytosis. On hospital Day 7, a positive MP IgM prompted azithromycin initiation, which corresponded to …

Cilia Dynamics In Primary Ciliary Dyskinesia: A Biophysical Characterization Of The Rsph4a Founder Variant, Gabriel Rosario-Ortiz, José Muñiz-Hernández, Natalia M Ortiz-Pérez, Marcos J Ramos-Benitez, Ricardo A Mosquera, Wilfredo De Jesús-Rojas

Faculty, Staff and Student Publications

Primary ciliary dyskinesia (PCD) is a rare ciliopathy resulting in chronic oto-sino-pulmonary disease. PCD diagnosis can be achieved by a combination of different diagnostic and adjuvant tools, including high-speed video-microscopy analysis (HSVA). A founder variant has been described in Puerto Rico as the most common cause of PCD in the island. Background/Objectives: In HSVA, objective parameters such as ciliary beat frequency (CBF) and subjective parameters such as ciliary beat pattern (CBP) shed light on the biophysical properties of cilia. However, the subjective nature of CBP creates a gap in knowledge; characteristics such as the length, angle, and bending index of …

Case Study: Unique Presentation Of Odontogenic Keratocyst (Okc), Austin J. Davies, Ladan Daly, Jesse M. Fa, Bernadette Alvear Fa

Oral Health

Optimized patient centered care in complex surgical cases requires comprehensive preparation through both clinical examination and radiographic interpretation. Our case demonstrates how diagnostic imaging can reveal critical radiographic findings that alter treatment approach. Pre-operative preparation involving thorough clinical and radiographic examination, in combination with excellent clinician rapport, leads to a biopsychosocial approach to dental treatment, emphasizing whole patient care.

Biopsy returned from oral pathology with diagnosis of odontogenic keratocyst (OKC). At the time of publication, the patient is nearing definitive treatment of the cystic lesion with enucleation and removal of tooth #16. In our case, thorough radiographic interpretation, the professional …

Nano Zinc Oxide Against Bacteria Isolated From Burn Infection, Mohammed Jaafar Al-Anssari, Mohammed Sahib Al-Hamami, Hayder Razzaq Al-Ameedee, Rabab Abdul Razzaq Kasema, Hawraa Majid Mahdi

Al-Bahir

Pseudomonas aeruginosa is a type of bacteria that is found commonly in the environment, like in soil and in water. This bacteria can cause infections in the blood, lungs (pneumonia), or other parts of the body after surgery. These bacteria are constantly finding new ways to avoid the effects of the antibiotics used to treat the infections they cause. Zinc oxide nanoparticles' (ZnO-NPs') or Nano zinc oxide antibacterial properties have drawn a lot of attention from around the world, especially since nanotechnology has been used to create particles in the nanometer range. Because of their larger specific surface area and …

Assessment Of Fecal Indicator Bacteria And Vendors' Handling Practices For Safety Of Salads And Raw Leafy Vegetables In Dar Es Salaam, Tanzania, Gloria B. Mrisho, Thomas J. Lyimo, Godwill D. Mrema

Tanzania Journal of Science

Fresh leafy vegetables have gained popularity in Tanzanian cities due to their nutritional benefits and increased promotion by health practitioners. Assessment of their microbiological quality and safety is essential for determination of associated health risks. This study enumerated Fecal Indicator Bacteria (FIB) for determination of microbiological quality and safety of fresh leafy vegetable salads sold by street vendors and raw leafy vegetables obtained from Sinza market in Dar es Salaam. Handling practices, awareness and consumer satisfaction on the safety of leafy vegetable salads was also assessed among salad street vendors and consumers. Samples were collected from four stations and analyzed …

Unexplained Inguinal Adenopathy Leading To The Diagnosis Of Metastatic High-Grade Serous Ovarian Carcinoma, Olivia R. Kaufman, Ishita Agarwal, Morgan W. Stewart, Peighton E. Davis, Brett Dunbar

Student Publications

High-grade serous ovarian carcinoma (HGSOC) is the most common subtype of ovarian cancer, most commonly originating from the epithelium of the fallopian tube. In metastasis of HGSOC cells, there is a particular predilection for the omentum. Metastatic involvement of extraperitoneal lymph nodes, particularly the inguinal region, is rare and may pose a diagnostic challenge. We report a case of an 87-year-old female patient presenting with a right inguinal mass, in whom the pathology of the surgically removed mass confirmed the diagnosis of metastatic HGSOC, requiring oncological follow-up and management. This atypical pattern of spread underscores the importance of considering a …

Association Between The Dietary Index For Gut Microbiota (Di-Gm) And Colorectal Cancer In The Plco Cohort, Bezawit E. Kase, Angela D. Liese Ph.D., Jiajia Zhang Ph.D., Elizabeth Angela Murphy, Susan E. Steck Phd, Mph, Rd

Faculty Publications

Objectives: The study aimed to examine the association between a dietary index for gut microbiota (DI-GM) and the risk of incident colorectal cancer (CRC). Clarifying the role of diet-induced alterations in the composition and function of gut microbiota on the development of CRC can contribute to prevention efforts. Methods: Participants from the Prostate, Lung, Colorectal, and Ovarian Cancer Screening trial enrolled in the intervention arm and who completed baseline assessments were included in the analysis (n = 55,685). The DI-GM is a literature-derived index used to score diet quality in terms of maintaining healthy gut microbiota. A time-dependent Cox model …

Association Between The Dietary Index For Gut Microbiota (Di-Gm) And Colorectal Cancer In The Plco Cohort, Bezawit E. Kase, Angela D. Liese, Jiajia Zhang, Elizabeth Angela Murphy, Susan E. Steck

Faculty Publications

Objectives: The study aimed to examine the association between a dietary index for gut microbiota (DI-GM) and the risk of incident colorectal cancer (CRC). Clarifying the role of diet-induced alterations in the composition and function of gut microbiota on the development of CRC can contribute to prevention efforts. Methods: Participants from the Prostate, Lung, Colorectal, and Ovarian Cancer Screening trial enrolled in the intervention arm and who completed baseline assessments were included in the analysis (n = 55,685). The DI-GM is a literature-derived index used to score diet quality in terms of maintaining healthy gut microbiota. A time-dependent Cox model …

The Hexosamine Biosynthetic Pathway Alters The Cytoskeleton To Modulate Cell Proliferation And Migration In Aggressive Prostate Cancer, Rajina Shakya, Praveen Suraneni, Amit Rahi, Michael Y Young, Emily Cousino, Christine B Magdongon, Raju Gajjela, Basil B Mattamana, Alexander Zaslavsky, Ganesh S Palapattu, Arun Sreekumar, Dileep Varma

Faculty, Staff and Students Publications

Castration-resistant prostate cancer (CRPC) progresses despite androgen deprivation therapy, as cancer cells adapt to grow without testosterone, becoming more aggressive and prone to metastasis. CRPC biology complicates the development of effective therapies, posing challenges for patient care. Recent gene-expression and metabolomics studies highlight the Hexosamine Biosynthetic Pathway (HBP) as a critical player, with key components like GNPNAT1 (Glucosamine-phosphate N-acetyltransferase 1) being downregulated in CRPC. GNPNAT1 knockdown in pre-clinical models has been shown to increase growth and metastasis in CRPC tumors, though the mechanisms remain unclear.To investigate the cellular basis of these CRPC phenotypes, we generated a CRISPR-Cas9 knockout model of …

“Always Having To Dampen And Dilute My Essence In Order To Fit”: Intersectional Experiences Of Queer Scholars Of Color In Stem And Stem Education, Nuria Jaumot-Pascual, Lisette Torres-Gerald, Maria Ong

The Qualitative Report

This article examines the intersectional experiences of queer scholars of color in STEM and STEM education. Using arts-informed research methods, we conducted and analyzed five interviews and a focus group transcript that focused on the support and hurdles that five participants encountered and the strategies they utilized to navigate their work in STEM and STEM education. We identified that, against the backdrop of prevailing heteronormativity and normative whiteness in STEM, participants compartmentalized their STEM and social identities, felt compelled to negotiate the risks of coming out, and assumed the double burden and invisible work of students who were queer and/or …

Fabrication And Analysis Of Bi₂O₃/Si Heterojunction For Solar Cell Applications, Maher Khaleel Ibrahim, Assel Mustafa Abdul Majeed, Randa Kamel Husain, Jamal M. Rzaij

Al-Bahir

Bismuth oxide (Bi₂O₃) nanoparticles were synthesized via a green route and integrated into Bi₂O₃/Si heterojunction solar cells. Structural analysis confirmed the monoclinic α-Bi₂O₃ phase with a nanoscale crystallite size, while SEM revealed a uniform morphology. Optical studies showed a direct band gap suitable for absorbing visible light. Photoluminescence spectra exhibited dual emissions at 498 nm and 250 nm, attributed to defect states and quantum confinement, highlighting the dual role of Bi₂O₃ as both absorber and transparent window layer. Electrical characterization under dark conditions demonstrated rectifying diode behavior, confirming the formation of a junction. Capacitance–voltage analysis yielded a built-in potential of …

Development And Performance Evaluation Of Eco-Floor Tiles Made From Avocado (Persea Americana) Seeds, And Mango (Mangifera Indica) Seeds And Peels, Mark Dominique P. Mendoza, Kristine Cassandra T. Cacapit, Zion Ezekiel Micaiah Navia, Stephanie Anne A. Lim, Dominique Mae R. Gobaton, Jace Earl P. Gabitan, Gasper Juleo L. Otgalon, Josh Ryley C. Angeles, Hanz Mikkel A. Arnuza, Gwynette R. Legaspi, June Ray O. Filler

DLSU Senior High School Research Congress Conference Proceedings

The growing demand for sustainable construction materials has led to increased interest in utilizing agricultural wastes as eco-friendly alternatives. This study examines the potential of Avocado Seeds (AS), Mango Seeds (MS), and Mango Peels (MP) as additives in eco-floor tile production, incorporating them into cement mixtures through a quasi-experimental design. Various proportions of these agricultural by-products, collectively termed as Seeds and Peels Mixtures (SPM) were evaluated for compressive strength, flexural strength, and water absorption. A One-Way Analysis of Variance (ANOVA) was conducted to assess the effects of different additive ratios. Results revealed that compressive strength peaked at 49.40 MPa with …

Crude Extract From Robusta Coffee (Coffea Canephora) Husks Using Ethanol: Steam Versus Ultrasonic, Kirsten Shanel B. Bernardo, Julianne Kaye D. Cortes, Ron Gabriel J. Perillo, John Albert D. Gurtiza

DLSU Senior High School Research Congress Conference Proceedings

The global demand for renewable energy sources necessitates exploring sustainable alternatives to fossil fuels. Coffee husks, a significant agricultural waste product, represent a potential feedstock for biofuel production. This study investigated the comparative efficacy of steam distillation and Ultrasonic-Assisted Extraction (UAE), using ethanol as a solvent to extract crude extract from Coffea canephora husks. A comparative experiment was conducted using 200g of Coffea canephora husks for each extraction method replicated three times and the yields were measured in mL. An independent sample t-test was used to compare the mean yields between the two methods. UAE yielded significantly more crude extract …

When In Doubt, Sit Them Out: The Need For A Uniform Youth Sport Concussion Law, Ryan Bald

Denver Sports & Entertainment Law Journal

No abstract provided.