Digital Commons Network^™

Exploring Teachers’ Self-Perceptions: A Case Study Unraveling The Influence Of Professional Learning On Practice, Lindsay Goldsmith

Doctoral Dissertations and Projects

The purpose of this case study was to understand how professional development affects elementary educators' self-perceptions in the K-12 setting within American schools overseas. The theory guiding this study was Jack Mezirow’s theory on transformative learning as it explains the relationship between learning and practice. How do overseas teachers' engagement in professional learning activities contribute to transformative learning experiences, and how does the social learning context influence the development of their teaching practices? The present study utilized a case-study approach to explore how current teachers perceive their practice is affected by professional learning. Interviews, surveys, and document analysis were used …

Effects Of Beer And Calcium Lactate On The Quality And Volatile Flavor Components Of Secondary Fermented Mustard Greens, Jiang Long, Wang Feng, Xie Peihong, Ou Siming, Qin Dan

Food and Machinery

[Objective] To investigate the effects of adding beer and calcium lactate solution to the fermentation broth on the quality and volatile flavor substances of secondary fermented mustard greens. [Methods] Based on the inoculation of lactic acid bacteria into desalted mustard greens, cellar beer and pasteurized beer are added, respectively with calcium lactate solutions of different concentrations. Then, sensory evaluation is conducted on the secondary fermented mustard greens. Additionally, the pH, total acid, nitrite, reducing sugar content, and texture characteristics are determined during the fermentation process. The volatile flavor components of mustard greens are comparatively analyzed by solid-phase microextraction-gas chromatography-mass spectrometry …

Extraction Of Polysaccharide From Musella Lasiocarpa By Ultrasonic-Assisted Ionic Liquid Method And Study On The In Vitro Activity And Monosaccharide Composition Of The Polysaccharide, Duan Qiuhong, Jia Qingchao

Food and Machinery

[Objective] To study the extraction process and in vitro activity of polysaccharide from Musella lasiocarpa. [Methods] Ultrasonic-assisted ionic liquid extraction is adopted. With the extraction rate of polysaccharide as the evaluation index, single factor and response surface methods are used to optimize the extraction process of polysaccharide. Furthermore, the polysaccharide is characterized in terms of the antioxidant activity, monosaccharide composition, and inhibitory activities on pancreatic lipase and α-amylase. [Results] The 引用格式：段秋虹，贾庆超. 超声辅助离子液体法提取地涌金莲多糖及体外活性、单糖成分研究 [J]. 食品与机械，2025，41(8):188-196. Citation: DUAN Qiuhong, JIA Qingchao. Extraction of polysaccharide from Musella lasiocarpa by ultrasonic-assisted ionic liquid method and study on the in vitro activity and monosaccharide composition …

Synthesis, Molecular Characterization, And Antibacterial Testing Of Silver–Cadmium Bimetallic Bionanoparticles Prepared From The Sidaguri (Sida Rhombifolia L.) Extract, Fredryk Mandey, Anita Rahelea Rangga Bua, Ismi Sri Rahayu, Nur Umriani Permatasari

Makara Journal of Science

Herein, we successfully synthesized, characterized, and examined the antibacterial activity of silver–cadmium bimetallic bionanoparticles prepared by mixing the aqueous extract of Sidaguri (Sida rhombifolia L.) and mixtures of silver nitrate and cadmium nitrate (yield = 0.2035 g). Ultraviolet–visible spectroscopy, Fourier transforms infrared spectroscopy, X-ray diffraction, scanning electron microscopy–energy dispersive X-ray spectroscopy, and particle-size analysis, revealed that the products exhibited a maximum absorption wavelength of 427.5 nm with an absorbance intensity of 0.790; a face centered cubic structure; Ag and Cd mass percentages of 98.52% and 1.28%, respectively; an average molecular diameter of 43.8 nm, and a polydispersity index of …

The Quality Of Bio-Pellets Made By Combining Walnut Kernel Shells (Canarium Indicum L.) From Bogor, Indonesia, And Palm Kernel Shells As Renewable Energy, Ani Iryani, Linda Jati Kusumawardani, Ronaldo Juniansyah

Makara Journal of Science

Using biomass as an energy source helps overcome the declining supply of fossil fuels. Bio-pellets—an energy product made from biomass—is one option that can be utilized. One source of biomass energy is walnut kernel shells. The walnut plant (Canarium indicum L.) is a forest tree grown in eastern Indonesia. The walnut plant is also located in the GOR Pajajaran area of Bogor City and has not been utilized for energy production. This study consists of three stages: 1) raw material preparation, 2) bio-pellet production, and 3) bio-pellet characterization in accordance with the Indonesian National Standard (SNI) 8951:2020. Based on …

Characteristics And Potential Indigenous Bacteria Isolated From Shallot Farming In Brebes Regency As Diazinon Pesticide Remediation Agents, Wahyu Purbalisa, Dian Hendrayanti, Wahida Annisa Yusuf

Makara Journal of Science

Diazinon is an organophosphate pesticide that is widely used by shallot farmers in Brebes Regency. Due to its toxicity, diazinon residue in agricultural lands as well as plants’ cultivation is harmful to humans and the environment. Using indigenous soil bacteria as a remediation agent is an alternative solution to overcome diazinon contamination. Firstly, this study aimed to characterize isolates from diazinon-contaminated shallot farming. The second objective was to test the diazinon tolerance of the isolates in various diazinon concentrations. Isolation was carried out using nutrient agar (NA) media containing diazinon concentrations of 5, 25, 50, and 100 ppm. The characterization …

Antibacterial Activity Of Zno/Geopolymer Composite Granules And Their Potential Application In Water Treatment, Ziyan Tirta Maulitia, Putri Nur Angelina, Pipit Erlita Sari, Sri Sugiarti, Irma Isnafia Arief, Zaenal Abidin

Makara Journal of Science

Water pollution has become a major global concern owing to its complexity and widespread impact. Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) are the most common bacterial contaminants in water sources, which pose significant threats to public health. To mitigate water contamination by these pathogenic microorganisms, developing and implementing effective water treatment technologies are essential. A promising approach involves using antibacterial water filtration systems. Herein, zinc oxide (ZnO) nanoparticles were synthesized via hydrothermal and precipitation methods as antibacterial agents for water treatment. These preparation methods required considerably low synthesis time. A capping agent was …

Church Engagement With Generation Z In A Post Christian Culture, Caleb W. Saunders

Doctoral Dissertations and Projects

The purpose of this qualitative phenomenological research was to apprehend what has kept Generation Z individuals to continue attending church in a post Christian culture. Understanding what keeps this demographic committed to their faith communities is essential for the FWB church. Focusing on Gen Z individuals that have stayed faithful to their local FWB church gives insight on why Gen Z individuals that have grown up attending church have abandoned their faith. The data collected through in-depth, semi structured interviews with Gen Z participants who met the criteria of sustained attendance and involvement in their local FWB church was practiced. …

A Phenomenological Study Of Overcoming School Experiences Of Disability-Related Stigma To Gain Competitive Employment For Individuals With Learning Disabilities, Katherine Lamont

Doctoral Dissertations and Projects

The purpose of this hermeneutical phenomenological study was to interpret the experiences of overcoming disability-related stigma to gain competitive employment for individuals with learning disabilities (LDs) who have previously received special education services in public schools in the United States. Goffman’s stigma theory framed the investigation of the research question: What are the lived experiences of individuals with LDs who have received special education services in public school settings with overcoming disability-related stigma to gain competitive employment? This study was conducted with 12 participants, who each received special education services in public schools in the United States for a specific …

Montana Kaimin, September 25, 2025, Students Of The University Of Montana, Missoula

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula.

Solutions For Linear Fractional Differential Equations With Multiple Constraints Using Fractional B-Poly Bases, Md. Habibur Rahman, Muhammad I. Bhatti, Nicholas Dimakis

Physics & Astronomy Faculty Publications

This study presents an innovative numerical method for solving linear fractional differential equations (LFDEs) using modified Bernstein polynomial bases. The proposed approach effectively addresses the challenges posed by the nonlocal nature of fractional derivatives, providing a robust framework for handling multiple initial and boundary value constraints. By integrating the LFDEs and approximating the solutions with modified fractional-order Bernstein polynomials, we derive operational matrices to solve the resulting system numerically. The method’s accuracy is validated through several examples, showing excellent agreement between numerical and exact solutions. Comparative analysis with existing data further confirms the reliability of the approach, with absolute errors …

Sequence And Phylogenetic Analysis Of Citrus Maxima (Burm.) Merr. From Tomini Bay, Sulawesi Island, Based On The Maturase K Gene, Brenda Febrina Zusriadi, Novri Youla Kandowangko, Febriyanti Febriyanti

Makara Journal of Science

This study was conducted in the coastal area of Tomini Bay, Sulawesi Island, and it focused on Citrus maxima, a plant known for its unique fruit flesh colors, which range from yellow to pink, and its varying leaf stalk wings. The study aimed to analyze the variations in maturase K (matK) sequences, molecular characteristics, and phylogenetic relationships of two C. maxima samples from Tomini Bay compared to other C. maxima and Citrus species using data available in GenBank. The study utilized DNA barcoding with matK molecular markers, followed by phylogenetic tree construction using the maximum likelihood method …

Detection Method For Escherichia Coli Using Real-Time Polymerase Chain Reaction Targeting The Yhav Gene, Muktiningsih Nurjayadi, Anisa Fitriyanti, Royna Rahma Musie, Gusti Angieta Putri, Puan Aqila Azizah, Helzi Angelina, Grace Grace, Ananda Indah Putri Sihombing, Agus Setiawan, Jefferson Lynford Declan, Gladys Indira Putri, Dandy Akbar Juliansyah, Siti Fatimah, Ayu Berkahingrum, Irma Ratna Kartika, Fera Kurniadewi, Vira Saamia, Shyi-Tien Chen, Bassam Aboemolak, Hesham Ali El Enshasy

Makara Journal of Science

Escherichia coli is a foodborne pathogenic bacterium that can cause diarrhea, while yhaV is a virulence-associated gene linked to the toxin–antitoxin system in E. coli. This study was aimed at evaluating the confirmation, specificity, and sensitivity of a yhaV gene primer using real-time polymerase chain reaction. The yhaV-targeting PCR successfully amplified a DNA fragment with an amplicon length of 207 bp (base pairs) under an annealing temperature optimized to a range of 54 °C to 62 °C via gradient PCR. The PCR using the primer pair produced a consistent Ct (cycle threshold) of 14.14 ± 0.05 and showed …

The Effect Of Ozone Treatment On The Quality Of Biodiesel From Waste Cooking Oil, Sri Redjeki Setyawati, Singgih Wibowo

Makara Journal of Science

This research demonstrates the successful production of biodiesel from waste cooking oil (WCO) using the transesterification method. A methoxide solution, formed by employing a base catalyst and alcohol, facilitated the conversion of triglycerides into methyl esters and glycerol as the byproduct. The conversion process yielded 74% biodiesel and 13.5% glycerol content, with the remaining proportion consisting of water and contaminants. The application of ozone (O₃) aeration proved effective in reducing contaminants—such as alcohol, unreacted catalysts, food residues and water—by approximately 60%. Furthermore, Fourier transform infrared (FTIR) testing affirmed that the biodiesel product—treated with O₃ aeration—maintained its original …

Effect Of Varying Chitosan Molecular Weights On The Morphology And Physical Characteristics Of Pva/Chitosan Composite Hydrogels, Yuan Alfinsyah Sihombing, Halida Rahmi Luthfianti, William Xaveriano Waresindo, Marathur Rodhiyah, Nur’Aini Nafisah, Dian Ahmad Hapidin, Dhewa Edikresnha, Khairurrijal Khairurrijal

Makara Journal of Science

We employed the innovative freeze–thaw method to investigate the effect of chitosan (CS) molecular weights incorporated into polyvinyl alcohol on the morphology and physical characteristics of the hydrogel. This study aimed to unravel the intricate relationships between CS molecular weight variations, CS concentration, and the number of freeze–thaw cycles (4 or 6 cycles) on hydrogel swelling degree and weight loss. Incorporating CS improved the hydrogel structure and enhanced its porosity, resulting in remarkable increases in swelling degree ranging from 2 to 6 times the initial weight. Higher molecular weight CS (310,000–375,000 Da) exhibited a lower swelling degree than medium molecular …

Employing Seca Recombinant Protein To Generate Polyclonal Antibodies For The Rapid Identification Of Phytoplasma, Arik Arubil Fatinah, Muhaimin Rifa'i, Estri Laras Arumingtyas, Sri Widyarti

Makara Journal of Science

Phytoplasma, a plant pathogen that threatens plant health, can induce diseases such as yellow wilt, virescence, phyllody, and witches’ broom. Although early detection methods using polyclonal and monoclonal antibodies have been developed, synthetic peptides offer advantages such as higher titers, predictable antigenic characteristics and superior sensitivity and specificity. Epitope mapping plays a key role in designing peptide antigens and includes gene synthesis, transformation, expression assessment, large-scale production, and purification. A study using New Zealand male White rabbits was conducted to generate antibodies against phytoplasma. The SecA (395–470) sequence, obtained from the preprotein translocase meets the criteria of being non-homologous, nonallergic, …

Gama Melon Parfum, A Potential Melon Genotype Tolerant Of Salinity Stress, Giri Nugroho, Tatik Chikmawati, Dian Sartika, Adib Fakhruddin Yusuf, Karso Suryo Putro, Vida Rahma Latifah, Budi Setiadi Daryono, Anjar Tri Wibowo, Awik Puji Dyah Nurhayati, Karlia Meitha, Miftahudin Miftahudin

Makara Journal of Science

Melona, Tacapa Gold, and Gama Melon Parfum are novel Melon genotypes that have been introduced for cultivation in the saline-prone coastal region of Bocor Beach, Kebumen, Central Jawa. Elevated salt concentrations in the area pose challenges, impacting yield. The potential of these new genotypes for saline land remains unexplored. This study aimed to assess the morphophysiological and molecular responses of these genotypes to salinity stress. Seeds were germinated in cocopeat and ABmix 3000 solution and treated with 220 mM NaCl until harvest. The analysis included morphology, chlorophyll content, proline accumulation, malondialdehyde levels, and gene expression were analyzed. After 1 week …

Effect Of Red And Blue Light On Lipid, Protein, Carbohydrate, And Pigment Contents Of Navicula Sp., Sofyan Maulana, Aulia Setyo Nurul Hida, Ismia Wulandari, Siti Mudrikah, Dedy Kurnianto, Khusnul Qonita Maghfiroh, Ria Amelia, Tia Erfianti, Renata Adaranyssa Egistha Putri, Irika Devi Anggraini, Septhian Marno, Eko Agus Agus Suyono

Makara Journal of Science

Light quality critically modulates the physiology of diatoms, influencing photosynthetic efficiency and metabolite synthesis. This study examines how monochromatic red (620–750 nm) or blue (450–495 nm) light affects the biochemical profiles and pigment production in Navicula sp. versus white light (control). Cultures were grown in sterile f/2 medium, and biomass was tracked via OD₆₈₀. Biochemical analyses included lipids (Bligh and Dyer method), carbohydrates (phenol-sulfuric acid assay), proteins (Bradford assay), and pigments (spectrophotometric quantification). The growth dynamics were modeled using logistic and Gompertz equations. No significant differences in OD-based growth rates, carbohydrates, proteins, or lipids content were observed with …

Standing Waves Of Schrödinger Equation With Constant Magnetic Field And Combined Power Nonlinearities, Zhaosheng Feng, Yu Su

School of Mathematical & Statistical Sciences Faculty Publications

We study standing waves of the Schrödinger equation with constant magnetic field and combined power nonlinearities, which describes a single non-relativistic quantum particle in the presence of an electromagnetic field. We develop the local minima geometry method to establish the existence, estimates and mass collapse results for this equation, which generalize exiting results in the literature.

Describing The Retention Experiences Of Special Education Teachers In Rural California: A Phenomenological Study, Adriel Gama Reynoso

Doctoral Dissertations and Projects

The purpose of this transcendental phenomenological study was to describe the retention experiences of special education teachers who taught in rural elementary school districts in California. Retention was generally defined as a teacher who was influenced to stay with their district for a long time. The theory guiding this study was Herzberg’s two-factor theory of motivation-hygiene. This theory was particularly effective in addressing teacher retention because it provided a clear framework for understanding the factors that contribute to job satisfaction and dissatisfaction. This transcendental phenomenological study described the retention of special education teachers who taught in rural elementary school districts …

A Study Of The Relationship Between The Stress Responses From Rehearsal Preparations For Music Ensemble Performance Evaluations And Performing Arts Adolescents’ Working Memory, Gregory Thomas Minter

Doctoral Dissertations and Projects

The organization of memory retrieval is vital to the association between stress responses and negative educational achievements. These stress responses offer an opportunity to study the harmful consequences of prolonged strain on the developing brain, which may impair emotional restraint, self-control, and cognitive development. However, little research considers the fundamental notions of how stress responses from rehearsals for music ensemble performance assessments impact adolescent working memory. This mixed-methods study explored how rehearsal-related stress in music ensemble settings may affect adolescents' working memory. Participants included high school students in grades nine through 12 who participated in performing arts band ensembles. The …

Edge Percolation Centrality: A New Measure To Quantify The Influence Of Edges During Percolation In Networks, Christina Durón, Hannah Kravitz, Moysey Brio

Mathematics and Statistics Faculty Publications and Presentations

Numerous centrality measures exist to quantify the influence of edges within a network, with edge betweenness being one of the more well-known measures. However, such measures are inadequate in network percolation scenarios (e.g., the transmission of a disease over a transportation network of highways) as they fail to consider the changing percolation states of edges over time. This paper addresses this limitation by extending percolation centrality, a measure originally developed to evaluate the influence of vertices during a percolation process (i.e., a dynamic spread of a contagion) in the network, to the edge level. The proposed measure, edge percolation centrality, …

Probabilistic Intervals Around Population Forecasts: A New Approach With A Subnational Example Using Washington State Counties, David A. Swanson, Jeff Tayman

Publications, Reports and Presentations

Population forecasts produced by governments at all levels are used in the public sector, the private sector, and by researchers. They have been primarily produced using deterministic methods. This paper shows how a method for producing measures of uncertainty can be applied to existing subnational population forecasts while meeting several important criteria, including the concept of utility. The paper includes an assessment of the efficacy of the method by: (1) examining the change in uncertainty intervals it produces by population size and population growth rate; and (2) comparing the width and temporal change of the uncertainty intervals it produces to …

Promoting Reproductive Knowledge Among Youth Through A Summer Health Camp, Adejoke Bolanle Ayoola, Esther K. Afolabi, Zach B. Devries, Stacy L. De Ruiter, Esther Idowu, Vanesa B. Blas

International Nursing Research Congress (INRC)

Unplanned pregnancies are associated with adverse pregnancy and birth outcomes such as low birth weight, preterm birth, admissions into neonatal intensive care unit and significant cost of care. A strategy to reduce unplanned pregnancy is to provide more accurate information on reproductive physiology and conception risk to increase young people’s understanding of reproductive changes and improve pregnancy planning. This study examined the effect of a summer Health Education And Leadership Training for a Hopeful future (HEALTH) camp on the reproductive anatomy and sexual health knowledge of camp participants

Methods: This is a simple descriptive pre- and post-assessment study. The one-week …

A Comprehensive Scoping Review On Problematic Media Use & Psychopathology In Children & Adolescents, Katelin Crane, Helene Moriarty, Guy Weissinger, Sarah Domoff, Paul Bernhardt, Sydney Harris, Sarah Hughes, Jennifer Yost

International Nursing Research Congress (INRC)

Background: While existing research on psychopathology and problematic media use (PMU) in children and adolescents continues to grow and presents a complex, multifaceted issue, the direction of this relationship remains unclear. This scoping review aims to map the directionality of the relationship between PMU and psychopathology (encompassing both symptoms and diagnoses) in children and adolescents.

Methods: This scoping review examines longitudinal studies that addressed the relationship between psychopathology and PMU in children and adolescents (ages 6 to 18 years old). Searches of databases, reference lists of included studies, and relevant conference abstracts were performed to identify studies meeting the inclusion …

Complete Issue-Volume 87, No. 3 And 4, Sean A. Scott, Justin Martin, William "Brother" Rogers, Will Bowlin, Charles W. Eagles, Jeffery B. Howell, Amanda Lyons Lanata, Ryan Reynolds, Christopher T. Slocombe, Whitney Snow

Journal of Mississippi History

No abstract provided.

James Lynch And The Merging Of Religious And Political Reconstruction In Mississippi, Sean A. Scott

Journal of Mississippi History

No abstract provided.

The Effect Of An Educational Program Based On Social Learning On The Acquisition Of National And Citizenship Education Concepts Among 10th Grade Students In Jordan, Nawaf Abu Tayeh, Kawthar Al-Shabbatat

Jordan Journal of Applied Science-Humanities Series

This study aimed to examine the effect of an educational program based on social learning on the acquisition of national and citizenship education concepts among tenth-grade students in Jordan. The study sample consisted of 68 students from Prince Muhammad Secondary School, affiliated with the Directorate of Education in Al-Jafr, during the 2019/2020 academic year. The sample was divided into an experimental group (33 students) and a control group (35 students). A concepts scale and a guide for implementing the educational program based on social learning were developed, and their validity and reliability were confirmed. ANCOVA was used for data analysis. …

Tv Versus Video Games: Their Distinctive Effects On Adolescent Behavior And Academic Achievement, Faiaz Rahman, Kathy L. Schuh

Mid-Western Educational Researcher

The current paper uses data collected from a publicly available, nationally representative data set to examine the effects of TV viewing and video gaming on adolescent behavioral problems and cognitive achievement. Results revealed that extended hours of TV viewing were associated with greater anxiety/depression and antisocial problems. On the other hand, extended hours of video gaming were associated with higher reading comprehension scores. Differing effects of TV viewing and gameplay by an individual’s sex was also found during the analysis. It is also important to note that the opposite effects that the two media has on outcomes, indicate that, although …

Enhancing Science Learning Outcomes With Sitaya Miniature Media: A Quantitative Study Of Elementary Education, Gilang Kripsiyadi Praramdana, Hamdan Hamdan, Agus Gunawan, Fauziah Dwi Hijriani

Jurnal Pendidikan Sains

This study investigates the impact of SITAYA Miniature media on the learning outcomes of grade VI students in science subjects at SDN 2 Darma. Conventional teaching methods, often less engaging for students, were identified as a significant factor contributing to low academic performance. The study employed a quantitative research approach, with a randomized sample of 43 students divided into an experimental group (24 students) and a control group (19 students). Pretest and posttest data were collected using a structured test instrument, and statistical analyses, including normality, homogeneity, t-tests, and N-Gain tests, were conducted to assess the effectiveness of SITAYA Miniature …