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The Lumberjack, February 25, 2026

Cal Poly Humboldt's Student Newspaper

The student newspaper of Humboldt State University.

Deciphering Feup–Feuq Signaling: Mechanistic Analysis Of A Newly Identified Regulatory Module In Agrobacterium Tumefaciens, Michelle Charae Brock

Theses and Dissertations

Two-component systems (TCS) are widespread signal transduction pathways that enable bacteria to sense and respond to environmental changes with precision. TCS are fundamentally important to prokaryotes because they provide a rapid and efficient means of converting environmental stimuli into coordinated cellular responses. Unlike eukaryotes, which rely on multilayered signaling cascades and compartmentalized organelles, bacteria must interpret and react to changing conditions directly at the cell envelope. TCS allow prokaryotes to detect shifts in nutrients, osmolarity, pH, redox status, host-derived antimicrobials or competing microbes. This forces an immediate adjustment in gene expression programs to promote survival. Agrobacterium tumefaciens, a model organism …

Expression, Purification, And Crystallization Of Recombinant Human Abl-1 Kinase For X-Ray Crystallography, Ayça İrgi̇t, Hali̇li̇brahi̇m Çi̇ftçi̇, Hasan Demi̇rci̇

Turkish Journal of Chemistry

Abelson-1 (ABL-1) is a nonreceptor tyrosine kinase that plays essential roles in various cellular processes, including proliferation, survival, differentiation and its kinase activity is tightly regulated. The dysregulated ABL-1 kinase activity is linked to disease pathogenesis like Chronic Myeloid Leukemia (CML), where the BCR::ABL-1 fusion oncoprotein drives oncogenic signaling. Due to its central role in CML pathogenesis, understanding the structure of ABL-1 is crucial for the effective management of the disease and drug development studies. This study focuses on optimizing the expression, purification and crystallization of the recombinant human ABL-1 kinase domain for its structural analysis via X-ray crystallography and …

Zoledronic Acid-Loaded Hap–Sio2–Camoo4:Eu3+ With Luminescent Properties As A Novel Drug Delivery System, Emi̇ne Kutlu, Muhammad Asim Ali, Fati̇h Mehmet Emen, Canan Vejselova Sezer, Hati̇ce Mehtap Kutlu

Turkish Journal of Chemistry

CaMoO4:Eu3+-functionalized hydroxyapatite–silica (HAp–SiO2–CaMoO4:Eu3+) core–shell nanocomposites were synthesized for the first time and evaluated as a multifunctional drug delivery and imaging platform. HAp–SiO2 nanocomposites were prepared via a hydrothermal route and subsequently functionalized with a luminescent CaMoO4:Eu3+ shell using the Pechini sol–gel method. Structural analyses confirmed the successful coexistence of HAp, SiO2, and CaMoO4:Eu3+ phases, while electron microscopy revealed spherical core–shell morphologies. Dynamic light scattering measurements showed average hydrodynamic particle sizes of approximately 1085 nm for HAp–SiO2 and 1427 nm for HAp–SiO2–CaMoO4:Eu3+ nanocomposites, indicating particle clustering in aqueous media, which is consistent with the low surface charge of the particles. The …

The Bg News February 25, 2026, Bowling Green State University

BG News (Student Newspaper)

The BGSU campus student newspaper. February 25, 2026. Volume 105-Issue 19.

Effectiveness Of A Network Open House Model To Recruit Trainees To Post-Baccalaureate Stem Programs, Sarah Mordan-Mccombs, Scott Takeo Aoki, Lindsay Lewellyn, Sarah Justice, Neetu Tewari, Jorge Cantu, Robert Seiser, Ahmed Lakhani, Jennifer R. Kowalski

Biology Faculty publications

Post-baccalaureate (post-bac) programs can be instrumental in strengthening science training and expanding STEM career opportunities for junior trainees. Many of these sponsored programs are designed to increase research exposure for underrepresented minorities, including African American, Hispanic, Native American, and first-generation college students, among others. Recruiting trainees to post-bac programs can be challenging for reasons including a lack of awareness about available programs. To address this gap, an Open House event was created with the goal of raising awareness and generating interest among potential students for future post-bac programs. Students were recruited from partnering Minority Serving Institutions (MSIs) to attend a …

Examining The Impact Of Young Children’S Motor Development On Inhibitory Control And Social Skills, Ali S. Brian Ph.D., Shea E. Ferguson, Angie Starrett Ph.D., Emily Kallis, J. Ross Ramsey

Faculty Publications

Background/Objectives: Understanding how motor and cognitive development may contribute to prosocial behavior is essential for supporting whole-child development in early learning settings. Early childhood education settings are well-positioned to address these concerns through integrated approaches that support the whole child. Research exploring the mechanisms that link developmental domains remains limited, especially regarding how motor development may influence social outcomes through cognitive processes such as inhibitory control. Thus, the purpose of this study was to examine whether gains in motor skills were associated with prosocial behaviors indirectly through improvements in inhibitory control. Methods: Preschoolers (N = 238; Mage = 66.61, SD …

Characteristics And Mechanisms Of Guar Gum Degradation By Indigenous Bacteria In Coal Seams, Li Bing, Guo Hongyu, Zhou Xiao, Wang Haichao, Jian Kuo, Chen Zhaoying, Zhang Bin

Coal Geology & Exploration

Background Hydraulic fracturing serves as a stimulation technique extensively used in the commercial development of coalbed methane (CBM), in which guar gum is commonly used as a fracturing fluid thickener. However, under the low-temperature conditions of coal reservoirs, conventional chemical gel-breaking methods often suffer from incomplete gel breaking and high residue content, resulting in formation damage and a decrease in the production efficiency of CBM wells. Methods Using indigenous bacteria in coal seams as functional strains, this study conducted microbial gel-breaking experiments. It systematically investigated the characteristics of guar gum biodegradation by these bacteria and determined the dominant microbial taxa …

Determination Of Cortisol Concentrations Using Different Biomarkers In Dairy Goats During Pregnancy, Fatma Mi̇ra Güven, Erkan Pehli̇van

Turkish Journal of Veterinary & Animal Sciences

Pregnancy is considered one of the most physiologically stressful periods in mammals. In the present study, serum and hair cortisol concentrations were measured in nine female Akkeçi goats, including five primiparous (1.5 years old) and four multiparous (3.5 years old), to evaluate chronic stress during pregnancy. Hair samples were collected in October, November, and December following the introduction of bucks to the herd and within the first 12 h postpartum (corresponding to the 1st, 2nd, 3rd, and 7th sampling times). Hair samples were not collected in January, February, or March (the 4th, 5th, and 6th sampling times) due to insufficient …

Effects Of Zinc-Reinforced Clinoptilolite On Hematological Parameters, Igg Levels, And Enzyme Histochemistry In Fattening Lambs, İhsan Kisadere, Muhi̇tti̇n Zengi̇n, Özkan Demi̇rbaş, Mehmet Faruk Aydin

Turkish Journal of Veterinary & Animal Sciences

The study aimed to determine the effects of zinc-reinforced clinoptilolite supplementation to the diet on selected hematological parameters, serum immunoglobulin G (IgG) concentrations, and enzyme histochemical characteristics in fattening lambs. For this purpose, 40 healthy male lambs were randomly allocated into five equal groups: control (C; n = 8), natural clinoptilolite (NC; n = 8), zinc (ZN; n = 8), natural clinoptilolite plus zinc (NCZN; n = 8), and zinc-reinforced clinoptilolite (ZNRC; n = 8). All animals were housed in individual pens, and the supplementation period continued for 42 days. Blood samples were collected before the trial (day 0) and …

Comparison Of The Mars And Xgboost Algorithms For Predicting Body Weight In Kalahari Red Goats, Louis Thobela Tyasi, Cem Tirink, Kwena Mokoena, Hasan Önder, Uğur Şen, Demet Çanga Boğa, Tolga Tolun, İsmai̇l Gök, Yüksel Aksoy, Lütfi̇ Bayyurt, Ömer Faruk Yilmaz

Turkish Journal of Veterinary & Animal Sciences

Estimating goat body weight from morphometric traits is essential for growth monitoring, health management, and welfare. Accurate weight informs nutrition, clinical interventions, and mating decisions. In this study, the MARS and XGBoost algorithms were used to estimate the live weight of Kalahari Red goats based on body measurements. A dataset containing body length (BL), birth type (single, twin, or triplet), withers height (WH), rump height (RH), and heart girth (HG) information for 200 goats was used in the training and testing of the models. The performances of the models were evaluated with the goodness-of-fit criteria. XGBoost showed a performance of …

Hatchability And Nestling Viability In An Extremely Short-Beaked Pigeon Breed, Türker Savaş, Hakan Erdem, Cemi̇l Tölü

Turkish Journal of Veterinary & Animal Sciences

The selection of hobby animals for breeding by enthusiasts is often based on aesthetic considerations, which can have a negative impact on the animals’ biology. Furthermore, “extreme traits” that deviate from ancestral norms, such as short beaks in pigeons, can be detrimental to the animal’s welfare. Beaks perform many essential functions, such as facilitating feed intake and eggshell breaking. The present study investigates possible hatching problems and the nestling viability of short-beak pigeons through a study of the breeding records of Mısıri (short beak), Baska (medium beak), and Turkish Dönek (normal beak) pigeons, as well as data from one breeding …

Queer Approaches To Tolkien: Essays On The Many Paths To Middle-Earth (2025), Edited By Robin Anne Reid, Christopher Vaccaro, And Stephen Yandell, Taylor Driggers

Journal of Tolkien Research

Book review, by Taylor Driggers, of Queer Approaches to Tolkien: Essays on the Many Paths to Middle-earth (2025), edited by Robin Anne Reid, Christopher Vaccaro, and Stephen Yandell

Trauma-Informed Collaborative Care In Adolescent And Young Adult (Aya) Oncology Survivorship Patients, Haleigh Mistry, Jessica Blanc

Cancer Survivorship Research Retreat

No abstract provided.

Comparing Anatomical Imaging With Functional Imaging For Coronary Artery Disease: The Limitations Of Vessel Stenosis And The Benefits Of Non-Invasive Measurement Of Fractional Flow Reserve, Zachary Zajac, Laura Aravena, Madeline Simone, David R. Allen Lll, Pranally Desai, Chanel Harvey, Nolan Tews, Nickolas Vinokurov

Clinical Research in Practice: The Journal of Team Hippocrates

A clinical decision report appraising

Neglia D, Rovai D, Caselli C, Pietila M, Teresinska A, Aguadé-Bruix S, et al. Detection of Significant Coronary Artery Disease by Noninvasive Anatomical and Functional Imaging. Circ: Cardiovascular Imaging. 2015;8(3):e002179. https://doi.org/10.1161/CIRCIMAGING.114.002179

for a stable hospitalized patient admitted for acute coronary syndrome (ACS) rule out.

Tetramethylbenzidine Loaded Pva Nanofibers Strip For Visual Detection Of Hydrogen Peroxide Via Cu2+ Catalysis And Its Applications, Samar A. Salim

Nanotechnology Research Centre

Background Advancements in sensor technology have facilitated the development of cost-effective and highly sensitive sensors which have significantly improved the detection of biological analytes in various fields. This study presents a novel approach for the detection of hydrogen peroxide (H₂O₂), a critical analyte in both biological and environmental systems. A simple and sensitive colorimetric sensing platform was developed based on polyvinyl alcohol (PVA) nanofibers loaded with tetramethylbenzidine (TMB). Results The nanofibers were characterized using scanning electron microscopy, confirming the formation of smooth, spindle-shaped fibers with diameters from 324 to 551 nm. The colorimetric detection method utilized TMB, which undergoes oxidation …

Gli Weekly, February 24, 2026, Franke Global Leadership Initiative

GLI Weekly

Advising Information -- Beyond the Classroom Experience Planning -- We're recruiting a VISTA for the Franke GLI -- Graduating Senior Corner -- Flathead Biological Station Summer '26 Courses: Application Now Open! -- Food and Agriculture Organization Internship Program -- Eating with Understanding -- Bee Positive Missoula -- Rooted: Connect with Nature -- Soft Landing Volunteer Opportunity -- SpectrUM Cultural Ambassador -- VolunteerUM -- BASL Night with the BSU & Signing Grizz -- SARC, "What Were You Wearing?" -- Bear Necessities, Is it your first time on Earth? Us, too! -- UM Choral Program: Stronger Together -- Vista opportunities, including with …

Microbiome-Responsive Hydrogels: From Biological Cues To Smart Biomaterials, Rajesh Vadlapatla, Amir Nasrolahi Shirazi, Ajoy Koomer, Judy Weng, Matthew Ernest Ghilarducci, Alai Qudus, Keykavous Parang

Pharmacy Faculty Articles and Research

Background: Stimuli-responsive hydrogels (SRHs) are smart polymeric materials that undergo reversible physicochemical changes in response to abiotic cues and externally applied fields, enabling applications in drug delivery, wound healing, and tissue engineering. However, they exhibit limited biological specificity and do not adequately reflect the dynamic, disease-relevant complexity of native tissue microenvironments. Microbe-colonized tissues display distinctive biochemical features driven, shaped by microbial metabolism, including localized pH gradients, short-chain fatty acid production, secretion of quorum-sensing molecules, biofilm formation, and expression of specialized enzymes. These endogenous, spatiotemporally regulated signals are closely linked to host physiology and pathology but remain underutilized in hydrogel …

Evidentiary Standards For Newly Approved Antibiotics For Uncomplicated Urinary Tract Infections, Rosa Rodriguez-Monguio, Enrique Seoane-Vazquez, John H. Powers Iii

Pharmacy Faculty Articles and Research

Importance: Uncomplicated urinary tract infections (uUTIs) are among the most common bacterial infections and are typically treated with existing oral antibiotics. In 2024–2025, the FDA approved two new oral agents, sulopenem etzadroxil/probenecid and gepotidacin, via expedited review pathways, for the treatment of uUTIs. Objective: To assess the clinical significance and regulatory evidence supporting FDA approval of sulopenem/probenecid and gepotidacin for uUTI, and to analyze the adherence of pivotal phase III trials to regulatory standards for approval and FDA guidelines. Design, Setting, and Participants: Comparative descriptive analysis of publicly available data from phase 3 randomized, double-blind, active-controlled clinical …

Enhancing Performance Of Intrusion Prevention Systems Through Machine Learning: A Comparative Study, Rawaa Hamza Ali, Zainab Saad Karam

Baghdad Science Journal

This research introduces a Machine Learning-Powered Intrusion Prevention System (ML-IPS) as a robust solution to address the challenges posed by evolving cyber threats. The ML-IPS combines timely threat detection with enhanced accuracy for real-time attack prevention, offering a resilient defense against a broad spectrum of cyber-attack. This study delves into the comprehensive evaluation of a machine learning-powered IPS that ingeniously harnesses the power of advanced algorithms to facilitate real-time threat detection and significantly enhance the overall accuracy of the system. The efficacy of intrusion prevention systems (IPS) that employ machine learning (ML) is greatly dependent on the choice of suitable …

Zinc Imbalance And Its Effect On Nutritional Status, Behavior, Gut Microbiota, And Inflammatory Biomarkers In Btbr T+Itpr3tf/J And C57bl/6j Mice: Insights Into Autism Spectrum Disorder, Asma Nasrullah Ahmadani

Thesis/ Dissertation Defenses

Background: Autism spectrum disorder (ASD) has been associated with altered zinc homeostasis and disruptions in the gut microbiota. Zinc is a vital trace mineral involved in multiple biological processes such as inflammatory regulation, intestinal integrity, and neurobehavioral function, and has an important role in influencing microbial activity along the gut–brain axis. Both deficiency and excess of zinc can alter microbial balance. However, their collective effects on behavior, overall physiology, and mineral status in ASD-relevant models are not yet fully understood.

Aim: This comprehensive study explored the effect of dietary zinc variation on body weight, food intake, behavior, gut microbiota composition, …

Science Communication Tools: Rubrics For Generating Posters And Manuscripts That Are Authentic To The Practice Of Science, Quinn Vega

Department of Biology Faculty Scholarship and Creative Works

Traditional undergraduate science courses often prioritize content mastery over authentic engagement with the scientific process. Course-based research, also referred to as course-based undergraduate research experiences (CUREs), addresses this limitation by immersing students in authentic scientific practice. In course-based research, assessment practices can also mirror the authentic scientific practice, where extensive formative feedback supports refinement of skills and understanding. Here, we present two rubrics designed to support the teaching and assessment of science communication in a way that reflects how scientists prepare to disseminate their research findings. One rubric is for creating scientific posters and another for writing short-format manuscripts. Developed …

An International Human Rights-Based Approach To Reducing Maternal Mortality And Enhancing Safe Motherhood In Africa, John Mukum Mbaku

San Diego International Law Journal

In 2015, the U.N. General Assembly (UNGA) noted that almost fifteen years after the global community had agreed to the Millennium Development Goals (MDGs), which provided an important framework for economic and human development, significant progress has been made in several areas. However, the UNGA explained that many developing countries have not been able to achieve the MDGs, especially those goals related to maternal and reproductive health. Although the global maternal mortality rate has declined significantly, only 50% of pregnant women in developing countries receive the recommended minimum of four antenatal care visits. Additionally, complications suffered during pregnancy and childbirth …

Seamless Security: Reforming Export Controls For A Stronger Allied Defense Industrial Base, Justin Belcher

San Diego International Law Journal

Russia’s invasion of Ukraine and China’s accelerating military modernization underscore the need for the United States and its allies to reinforce their defense industrial bases to deter and prevail in future conflicts. This paper examines the historical and strategic foundations driving the need for export control reform, identifies key U.S. export control laws governing defense coproduction and co-development, and analyzes how current regulations constrain allied industrial integration. It concludes by proposing solutions to streamline export control regulations to improve the strength and resilience of the modern defense industrial base.

Understanding The Lived Experiences Of Black Males Successfully Reintegrating Post Incarceration, Ashley Smith

Walden Dissertations and Doctoral Studies

Black males remain incarcerated at higher rates than any other race. Those individuals trying to reintegrate into society face many challenges with little mental and emotional rehabilitation support. The purpose of this hermeneutic phenomenology study was to improve the understanding of what contributes to successful reintegration and the mental health and emotional needs of formerly incarcerated Black males. Critical race theory (CRT) was used as a secondary lens to examine how race, systemic racism, and structural inequities shaped participants' experiences. This study examined the following research question: What are the experiences of Black males who were previously incarcerated and have …

The Effect Of St. John’S Wort Solution On Climbing Activity Reflecting Depressive-Like Behavior In Drosophila Melanogaster To Model Seasonal Depression In Low Sunlight Exposure, Madison Simon

Journal of the South Carolina Academy of Science

Although depression is a known substantial threat to public health, seasonal affective disorder (SAD) is under-researched. SAD refers to recurrent seasonal patterns of depression. This depressive disorder has few accepted treatments. The purpose of this study was to test whether St. John’s Wort (SJW), a natural supplement with researched antidepressant properties, could be a cheaper alternative with fewer limitations for treating SAD. SJW’s efficacy as a seasonal depression inhibitor was tested through a Drosophila depression-like model using climbing activity to reflect depressive behavior. It was hypothesized that as the concentration of SJW solution increases, the climbing activity of stressed Drosophila …

An Examination Of Trends And Factors Influencing Teen Retention In 4-H Youth Development Program: A Case Study, Bethany R. Corona

LSU Master's Theses

Teen participation in 4-H has declined nationally in recent years, raising concerns about long-term program sustainability and youth engagement. Understanding the factors that influence teens’ decisions to remain involved in 4-H is critical for informing program design and delivery. Guided by the theory of planned behavior, this qualitative study explored teen perceptions of 4-H programming, youth voice, social influences, communication, and barriers to participation. Data were collected through two group interviews with teen 4-H members representing multiple parishes. Interviews were audio recorded, transcribed verbatim, and analyzed using the constant comparative method through a three-phase coding process consisting of open, axial, …

Synthesis Of Data Products For Ocean Carbonate Chemistry, Li Qing Jiang, Amanda Fay, Jens Daniel Müller, Luke Gregor, Alizée Roobaert, Lydia Keppler, Dustin Carroll, Siv K. Lauvset, Tim Devries, Judith Hauck, Christian Rödenbeck, Nicolas Metzl, Andrea J. Fassbender, Jean Pierre Gattuso, Peter Landschützer, Rik Wanninkhof, Christopher Sabine, Simone R. Alin, Mario Hoppema

Faculty Research, Scholarly, and Creative Activity

As the largest active carbon reservoir on Earth, the ocean is a cornerstone of the global carbon cycle, playing a pivotal role in modulating ocean health and the Earth’s climate system. Understanding these crucial roles requires access to a broad array of data products documenting the changing chemistry of the global ocean as a vast and interconnected system. This review article provides an overview of 68 existing ocean carbonate chemistry data products and data product sets, encompassing compilations of cruise datasets, derived gap-filled data products, model simulations, and compilations thereof. It is intended to help researchers identify and access data …

Academic Senate - Agenda, 02/24/2026, Academic Senate

Academic Senate Agendas

No abstract provided.

Limitations Of Genetic Testing, Tony N. Jelsma

Faculty Work Comprehensive List

"Knowing about a pathogenic variant may sharpen our awareness of our mortality, but it should not fundamentally change our perspective on life."

Posting about the advantages and disadvantages of genetic screening from In All Things, an online hub that offers insight into maintaining and faithful and orthodox Reformed Christian worldview while fearlessly engaging in every aspect of contemporary life – until all is made new.

Limitations of Genetic Testing