Digital Commons Network^™

Implementation Of The Problem-Based Learning Model On The Topic Of The Immune System To Enhance The Critical Thinking Skills Of Grade Xi B Students At Sman 1 Tojo, Nani Sofyanti, Sutrisnawati Sutrisnawati, Vita Indri Febriani, Mohammad Jamhari, Bustamin Bustamin, Raya Agni

Jurnal Pendidikan Sains

Critical-thinking skills are essential competencies for students in 21st-century learning. Preliminary classroom observations in Class XI B at SMAN 1 Tojo indicated that instruction remained predominantly teacher-centered and provided limited opportunities for students to engage in activities involving interpretation, analysis, evaluation, and inference. This study aimed to improve students’ critical-thinking skills through the implementation of Problem-Based Learning (PBL) on the immune system topic. The study employed a Classroom Action Research (CAR) design conducted over two cycles, involving 28 students in Class XI B. Data were collected using a teacher activity observation sheet and critical-thinking skills tests assessing four indicators: interpretation, …

Bioherbicidal Potential Of Noni Fruit (Morinda Citrifolia) Extract Against Water Hyacinth (Eichhornia Crassipes), Nur Rahma Afriani, Paulus Hengky Abram, Vanny M Agustina Tiwow, Reny Reny

Jurnal Pendidikan Sains

Noni fruit (Morinda citrifolia) contains secondary metabolites that may have potential bioherbicidal activity. This preliminary laboratory experiment aimed to identify flavonoids and tannins in noni fruit extract and to describe the phytotoxic responses of water hyacinth (Eichhornia crassipes) exposed to different extract concentrations. Noni fruit was extracted with 96% ethanol by maceration and concentrated using a rotary evaporator. The extract was qualitatively screened for flavonoids and tannins and applied to water hyacinth at concentrations of 0%, 10%, 20%, 30%, and 50% (v/v), with three plants per treatment. Plant responses were observed for 25 days and analyzed …

Complete Issue - Volume 48, Issue 1, Hubert H. Mcalexander, Christopher K. Curtis, Eric C. Clark, Daniel C. Vogt, Lisa N. Howorth, Frank Allen Dennis, John F. Marszalek, Steve Pieschel, Patricia Galloway, Demas Brubacher

Journal of Mississippi History

No abstract provided.

Mississippi's Anti-Evolution Law Of 1926, Christopher K. Curtis

Journal of Mississippi History

No abstract provided.

Defining Teacher Envelopment: A Non-Aristotelian Approach To Meta-Practices In The Philosophy Of Teacher Education, Rob Blom

Journal of Contemplative and Holistic Education

The late Jonathan Neufeld argued that redefining teacher development required meta-practices, yet he never defined what these meta-practices were. To define them rigorously requires grounding teacher cultivation practices within coherent structures of truth capable of withstanding philosophical scrutiny—a challenge intensified by post- truth discourse that flattens epistemological depth in secularised educational theory. This paper advances a theory of teacher envelopment to complement conventional teacher development through identifying mindfulness and discernment as foundational meta-practices grounded in non-Aristotelian systems. The framework rests on three interrelated concepts: (1) truth paradigms encompassing contemplative, articulatory, and embodied dimensions; (2) epistemological depth as extensional practices that …

Hear My Voice As Who I Am: Theorizing The Essence Of Poetry In Holistic Global Citizenship Education, Shue-Kei Joanna Mok

Journal of Contemplative and Holistic Education

Poetry as an imaginative language art has long been perceived as the core of humanity, the foundation of human advancement (Arnold,1880; Rorty, 2007). By composing, critiquing, and sharing/performing poems, not only does the process enrich and deepen one’s relationship to oneself, understanding and reflecting on the contextual, historical, cultural, social, and creative backgrounds of the poems and poets allows one to have greater connections with the broader environment across temporal, spatial, and social dimensions with human and non-human beings.

This paper first frames the core concepts and values of global citizenship from a Confucius perspective to emphasize the significance of …

Contemplative Pedagogy, Mindfulness And Reflection In Teacher Education, Karen O. Ragoonaden Dr., Leslie Shayer

Journal of Contemplative and Holistic Education

This study explores the intersections of contemplative pedagogy, mindfulness practices and reflection in education. Contemplative pedagogy and mindfulness practices were introduced to three cohorts in teacher education, in graduate education, and in professional development education. This pedagogy and the practices provided a time, a place and a community to engage in personal and professional reflections about teaching and learning. The themes identified in this study demonstrated that engaging in contemplative pedagogy in a nine-week mindfulness course provided increased opportunities to reflect on self-awareness, on wellbeing and on the professional practice of education. The qualitative results of this study indicate that …

Evaluating The Nash Reaction As A Sustainable Alternative To The Snar Reaction In The Synthesis Of Pharmaceutical Intermediates, Allison L. Ryerson, James K. Bashkin, Jessica R. N. Thompson, Adam Weiss, Huy Q. Nguyen

Undergraduate Research Symposium

Nucleophilic aromatic substitution (SNAr) reactions are one of the most widely used reaction classes in pharmaceutical production today, used for example to produce nitroaryl amine intermediates. In comparison to the traditional SNAr pathway, the nucleophilic aromatic substitution of hydrogen (NASH) provides a greener alternative in pharmaceutical production by using cheaper starting materials, eliminating more hazardous solvents, and reducing toxic waste.

Synthesis And Charge Transport Characterization Of 9,9'-Bifluorenylidene-Based Conjugated Molecules For Single-Molecule Conductance, Zach Moughamian, Jahnavi Badiganti, Jinjia Xu

Undergraduate Research Symposium

Molecular electronics explores the use of individual molecules as functional components in nanoscale electronic devices. In this project, fluorenone-based π-conjugated molecules including 9,9'-bifluorenylidene-S and triphenylamine-substituted derivatives were synthesized to investigate structure-property relationships relevant to molecular charge transport. The synthesized compounds were obtained in 13% and 27% yield respectively. ¹H NMR spectroscopy confirms characteristic aromatic resonances in the 7-9 ppm region consistent with the conjugated framework. UV–Vis spectroscopy reveals absorption maxima at 459 nm and 470 nm, indicating extended π-conjugation and donor-acceptor effects. Single-crystal X-ray diffraction confirms the structure of 9,9'-bifluorenylidene-S, which crystallizes in the monoclinic system (space group P2₁/c). In …

Enantioselectivity Of The Photochemical Continuous-Flow Isomerization Of Humulones, Gregory M. Giovine, Trevor Smith, Bruce Hamper

Undergraduate Research Symposium

Humulones, the primary natural product present in the historically significant hop flower, represent a largely unexplored candidate for structure-based pharmaceutical design.  Showing promising biological activity as an anti-bacterial and anti-inflammatory agent, humulones are of interest both for their bioactive properties and for their long-established tolerability and natural abundance.  Humulones undergo a characteristic isomerization reaction, where the six-membered substituted phloroglucinol ring contracts to a five-membered ring isohumulone, under a variety of conditions, including those enabled by brewing conditions (thermal, metal-catalyzed) and by exposure to UV light.  Optimization of the photocatalyzed isomerization of n-humulone to n-isohumulone in flow conditions resulted in a …

Phenomenological Psychology : The Selected Papers Of Erwin W. Straus, Erwin Straus

Hannah Arendt Marginalia - All

New York : Basic Books, [©1966]

Call # : BF204.5 .S7

Contains underlining

PDF Information : 13 Pages, 6 MB

Mapping St. Louis History: Slavery, Redlining, And The May 16th Tornado, Safa M. Altamimi, Aster Horbanova, Riley J. Bearden, Vivian B. Rhodes, Bridget Ragan

Undergraduate Research Symposium

For this project, our group members are traveling across St.Louis to areas that are affected by the May 16th tornado. We will be taking pictures and using ArcGIS survey123 to input data connecting the tornado to historical forces such as Redlining and Slavery. Using this data, we will be creating an ArcGIS StoryMap and presenting our findings.

Love And Artificial Intelligence: A Research Proposal, Bryanna M. Deatherage, Necdet Gurkan, Sandra J.E. Langeslag

Undergraduate Research Symposium

What happens when people fall in love with Artificial Intelligence (AI)? This study seeks to examine individuals who are in love with AI companions to gain a deeper insight in the cognitive and affective consequences. In addition, this study will examine the most effective forms of intervention regarding growing or reducing feelings of love toward AI. The first part of this study will be a questionnaire about the social and emotional impact of being in love with an AI companion. Three hundred participants will be recruited through online communities related to AI companions. The second part of this study will …

Exploring Digital Media Literacy And Its Impact On Pedagogical Innovation And Creativity, Suparno Suparno, Tuty Sariwulan, Bagus Shandy Narmaditya, Ari Saptono, Saparuddin Muchtar, Muhammad Ridlo, Dingot Hamonangan Ismail

Journal of Media Literacy Education Pre-Prints

Enhancing teachers’ innovative work behavior is prominent in promoting educational quality. This exploratory study aims to understand the linkage between digital media literacy, creativity, and innovative work behavior among teachers in Indonesia. The data were obtained from teachers using an online self-administered survey. In addition, the data were analyzed using structural equation modeling with AMOS software. The results of this study indicate that there is a positive and significant influence between digital media literacy and teachers’ innovative work behavior. Indeed, creativity can also be a predictor of innovative work behavior among teachers in Indonesia. This study also notes the connection …

Routing Ml Inference Requests To Specialized Nodes Based On Prefill-Decode Classification, Satish Kondalam, Muninder Sambi, Rohan Grover, Aman Ahuja

Defensive Publications Series

Traditional hardware-based routing for machine learning (ML) inference requests can be inefficient in resource-constrained environments, such as air-gapped or sovereign deployments, potentially leading to system bottlenecks and suboptimal resource utilization. A disclosed technology relates to a system where a gateway component can classify incoming ML inference requests based on their computational profile, for example, as either prefill (dominant) or decode (dominant). The gateway can then route each request to a specialized node within a disaggregated hardware cluster, such as dedicated prefill nodes optimized for computation or decode nodes optimized for memory bandwidth. This application-aware routing method, which may be combined …

Exploratory Concurrent Associations Between K-Kyphometer And Flexicurve-Derived Kyphosis Measures (Kyphosis Index And Kyphosis Angle): Preliminary Study, Pimonpan Taweekarn, Kunavut Vannajak

Journal of Health Research

Background: Quantifying thoracic kyphosis is essential in musculoskeletal and rehabilitation practice. Although radiographic Cobb angle is commonly treated as a reference standard, repeated imaging is limited by cost and radiation exposure. Therefore, clinicians frequently use non-radiographic tools such as inclinometers and flexicurve rulers, which have shown acceptable reliability and variable levels of validity in different populations. The objective of this study was examine Pearson correlations between a patented K-Kyphometer (Utility Patent No. 23366) and two flexicurve-derived measures—Kyphosis Index (KI) and Kyphosis Angle (K angle).

Methods: In this cross-sectional correlation study (N=28), thoracic kyphosis was assessed using the K-Kyphometer and …

Covid-19 Vaccination Coverage And Associated Factors In Conflict-Affected Provinces Of The Democratic Republic Of The Congo: A Cross-Sectional Study, Anthony E. Mwakapugi

Jurnal Epidemiologi Kesehatan Indonesia

Background: This study analysed the coverage and determinant factors for COVID-19 vaccination in Ituri, North Kivu, and South Kivu provinces in the Democratic Republic of the Congo (D.R.C). These are war-affected provinces that have experienced prolonged armed conflict, potentially limiting vaccine access.

Methods: A cross-sectional analysis of 9,795 people aged at least 15 years old and older fromyears from the 2023–2024 D.R.C Demographic and Health III Survey was conducted. Weighted descriptive statistics, design-adjusted chi-square tests, and multivariable logistic regression identified determinants of vaccination uptake.

Results: Overall vaccination coverage was 14.1% (95% CI: 11.3% - 17.4%)16.6% (95% CI= 14.2–19.3), with marked …

Auctioning The Right To Trust And Reciprocate: Scarcity, Market Allocation, And Selection In The Trust Game, Jason Shachat, J. Todd Swarthout, Yun Wang

ESI Working Papers

We examine how competitive allocation of scarce participation rights shapes behavior in a Berg-style trust game. Trustor and trustee roles are allocated through multi-unit uniform-price English auctions with varying scarcity, alongside a matched-fee random-assignment control treatment. Positive transfers and returns persist, but behavior lies near the low-trust, low-reciprocity end of comparable benchmarks. Tighter scarcity accelerates the decline in trustor transfers, while trustee returns show no monotonic pattern. Scarcity strongly raises auction prices without comparably raising participants’ gross trust-game earnings, thereby lowering net earnings. Exit bids adjust to past game profitability, indicating adaptive learning about the value of participation.

Disturbance-Learning Inertia Estimation Using Artificial Neural Networks For Power System Stability, Sospeter Igaanja Gabriel, Francis Mwasilu, Peter Makolo Dr.

Tanzania Journal of Engineering and Technology (TJET)

ABSTRACT

Power systems are progressively shifting towards low inertia as a result of incorporating significant amounts of intermittent and converter-based renewable energy sources, such as wind and solar power, into the current power grid network. This integration poses considerable problems to inertia and frequency control within the network due to a reduction in the proportion of synchronous generators. Furthermore, rapid frequency deviations occur due to the disparity between supply and demand during contingencies, complicating the maintenance of frequency stability within the power system. The disturbance-learning inertia estimation method for power system stability is presented. The simulation analysis is performed using …

A Single-Step Plate Method For The Screening Of Xyl-A Mutant Libraries Based On Gene Expression, Bilqees Fatima, Muhammad Mohsin Javed

Journal of Bioresource Management

A single-step plate method is described for the screening of transformants of cloned gene xyl-A encoding xylose isomerase. It is rapid, inexpensive, easy to perform, and more specific, as the selection is based on xyl-A expression level. The crucial composition of the plate medium comprised agar, buffer, nutrients, co-factor, substrate, inducer, antibiotic, and an indicator, i.e., 2, 3, 5-triphenyl tetrazolium chloride (TTC). Transformed cells of E. coli BL21 (DE3) with a plasmid (pET21(a)⁺+xyl-A), were exclusively capable of growing, isomerizing the substrate, and producing deep-red formazan by reducing TTC, whereas the untransformed cells and cells containing a …

Multivariate Ecological Assessment Of Flora Of Village Karri Haider, District Tank, Kp, Numan Khan, Muhammad Azeem, Muhammad Adnan Hamza, Muhammad Aleem, Arshad Rasool, Ammara Wakeel, Sehrish Sadia

Journal of Bioresource Management

Spatial and temporal patterns of vegetation change are influenced by multiple factors, including the physical environment, land-use history, prior disturbance, and initial vegetation composition. The primary aim of this study was to understand floristic vegetation features, species diversity, and the classification of plant communities in Village Karri Haider, District Tank, Khyber Pakhtunkhwa (KP). Samples were collected from each transect using quadrats of 1 m × 1 m for herbs. Soil from three quadrats was mixed to make composite samples, and soil elements were quantified through laboratory analyses. Two surveys were conducted from July to December, 2023. In the first survey, …

Bio-Oil Production From Palm Kernel Shell By Pyrolysis: Feedstock Characterization And Potential For Sustainable Transportation Fuel Production, Monday Ejiga, Helen Olayinka Ogunsuyi, Taiwo Mary Oriyomi, Ayodele Adekunle Faiyetole

Journal of Bioresource Management

Transportation energy constitutes a substantial share of global energy consumption, and its associated contribution to emissions and, by extension, climate change, necessitates intensified efforts toward the development of sustainable transportation fuels. This study investigated the suitability of Palm Kernel Shell (PKS) biomass for pyrolytic bio-oil production as a potential precursor for transportation biofuels. Laboratory-scale pyrolysis at 450-500 °C produced bio-oil, while proximate analysis (wt.%) showed low moisture (5.59), moderate fixed carbon (20.11), high volatile matter (66.25), and relatively high ash (8.05) contents. Ultimate analysis (wt.%) revealed 49.25 carbon, 5.17 hydrogen, 43.90 oxygen, 0.79 nitrogen, and 0.89 sulphur, with Van Krevelen …

Generative Artificial Intelligence, Academic Integrity And Authentic Assessment Within An Irish University, Louise Nagle, Brigid Crowley, Laura Rafferty, Susan Horgan, Colin O'Brien

Publications

Academics need both an overarching policy on Generative Artificial Intelligence (Gen AI) use in teaching and learning, yet agency in its application across various disciplines. Clarity on the use of the technology for both students and staff is therefore a challenge and characterised by uncertainty given how its application is still unfamiliar. This research examines the organisational context in which Gen AI is being embraced and was conducted by the digital teaching support functions within an Irish university. Students and staff were surveyed (n=1,746) on various aspects of digital use within their education and workplace, including Gen AI. …

Butte Priority Soils Operable Unit Final Insufficiently Reclaimed Sites Field Sampling And Investigation Plan: Bres No. 129 – Heaney Dump, Mike Mcanulty

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Butte Priority Soils Operable Unit Final Insufficiently Reclaimed Sites Field Sampling And Investigation Plan: Bres No 135 – Washoe Sampling Works, Mike Mcanulty

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Butte Priority Soils Operable Unit Final Insufficiently Reclaimed Sites Field Sampling And Investigation Plan: Bres No. 11 – Magna Charta Lessee Dumps, Mike Mcanulty

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Butte Priority Soils Operable Unit Final Insufficiently Reclaimed Sites Field Sampling And Investigation Plan: Bres No. 105 – Lizzie Shaft, Mike Mcanulty

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Butte Priority Soils Operable Unit Final Insufficiently Reclaimed Sites Field Sampling And Investigation Plan: Bres No. 46 – Missoula Mine, Mike Mcanulty

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Dynamic Forecasting Of Sovereign Wealth Fund Effects On State-Owned Firm Stocks Using Hybrid Arima–Garch Models, Ananta Hagabean Nasution, Teguh Yudo Wicaksono, Donny Oktavian Syah, Randhy Nugroho

BISNIS & BIROKRASI: Jurnal Ilmu Administrasi dan Organisasi

This study examines the forecasting dynamics of Indonesia's Sovereign Wealth Fund, DANANTARA, on the BUMN-20 Index using a hybrid ARIMA-GARCH model. The establishment of DANANTARA in February 2025 generated mixed reactions among capital market participants, with the Indonesian Stock Exchange suspended trading after share prices declined by more than five percent. Using daily time-series data from June 2018 to August 2026, this study employs a hybrid ARIMA(1,1,3)-GARCH(1,1) framework processed through E-Views 12. The results indicate that the BUMN-20 Index is predominantly driven by broader market movements, as evidenced by the highly significant IHSG return coefficient (β =1.237, p < 0.001). In the mean equation, the DANANTARA announcement and launch events do not produce statistically significant shifts in average returns. However, in the variance equation, the announcement significantly elevated conditional volatility (γ = 0.025, p = 0.009), suggesting heightened market uncertainty. The volatility persistence measure (α + β = 0.952) indicates that shocks to the BUMN-20 Index decay slowly, with a half-life of approximately 14 trading days. The forecasting results suggest a gradually declining trajectory for the index, though this does not imply a causal relationship with DANANTARA. These findings contribute to the literature by demonstrating that the primary channel through which a nascent SWF affects domestic equity markets is volatility rather than returns. The policy implications highlight the importance of for transparent governance and consistent communication in mitigating market uncertainty surrounding DANANTARA's operations.

Diagnosing Influential Observations Via Hybrid Secretary–Osprey Optimization Algorithm (Hsooa) In Gamma Regression Models For Fasting Blood Glucose Data, Luay Adil Abduljabbar, Sabah Manfi Ridha

Journal of Economics and Administrative Sciences

Influence diagnostics are essential for identifying influential observations that may affect the estimation accuracy of regression models. Classical diagnostic measures such as Cook's Distance and DFFITS may become less effective in complex or highly dispersed datasets. In this study, a new Hybrid Secretary–Osprey Optimization Algorithm (HSOOA), based on the integration of the Secretary Bird Optimization Algorithm (SBOA) and the Osprey Optimization Algorithm (OOA), is proposed for influential observation detection in the Gamma Regression Model (GRM). This optimization framework successfully achieves an optimal balance between global exploration and local exploitation. The proposed HSOOA framework was applied to a real medical dataset …