Digital Commons Network^™

Integrating Social-Emotional Learning To Foster Regulation And A Positive Classroom Climate, Klarika Meghan V. Alquisada

UNLV Theses, Dissertations, Professional Papers, and Capstones

Social-emotional learning (SEL) supports the development of emotional regulation, interpersonal skills, and meaningful participation in academic environments. Increasing regulatory demands within classrooms highlight the need for structured approaches that support both educators and students in maintaining engagement and fostering positive learning environments. Occupational therapy (OT) practitioners are uniquely positioned to collaborate with educators to integrate regulation-focused strategies within daily classroom routines.This quality improvement project aimed to develop and implement an OT-informed SEL program for educators serving students with diverse learning needs. Teachers received consultation and tailored SEL strategies, implemented them for 5 weeks, and provided feedback on their effects on …

Unknowing Sacrifices: Public Health And Radiation Illness In New Mexico And Nevada, 1940s-1960s, Beatriz Avila-Marquez

UNLV Theses, Dissertations, Professional Papers, and Capstones

The detonation of the first atomic bomb in the early morning of July 16, 1945, in New Mexico welcomed the atomic age that forever changed the world. After that day, thousands of lives were lost due to nuclear weapons, and hundreds of thousands more continued to suffer from the effects of atomic testing. The Atomic Energy Commission, fueled by the arms race of the Cold War, chose Nevada to continue the United States’ nuclear weapons testing. Knowledge of the dangers of radiation exposure, the effects of radiation, and techniques to prevent exposure are now available in part due to the …

Enhancing Psychosocial Well-Being And Quality Of Life In Parkinson’S Disease: Integrating Patient Experiences And Physical Therapists’ Expertise, Adetayo Adeoti Babarinde

UNLV Theses, Dissertations, Professional Papers, and Capstones

Parkinson’s disease (PD) is characterized by a wide range of non-motor symptoms that often affect the quality of life of persons with Parkinson’s disease (PwPD) even more profoundly than the motor symptoms typically associated with the condition. These non-motor symptoms include olfactory and gastrointestinal dysfunction, cognitive impairments, sleep disturbances, and psychological and social concerns. Psychosocial concerns include the mental, emotional, and social impact of PD on an individual’s functioning and, overall well-being. They reflect the interplay between symptoms of the disease, psychological development and functioning, personal relationships, and environmental factors. Mental health and psychosocial concerns such as depression, anxiety, fear …

Got Sleep?: The Introduction Of Sleep Hygiene To Justice Involved Individuals, Charisma Lynn Cato

UNLV Theses, Dissertations, Professional Papers, and Capstones

Individuals transitioning out of incarceration often experience challenges with sleep due to the residual effects of confinement. Although this is common among justice-involved individuals, there is limited research on how to address their sleep hygiene self-efficacy after release. Furthermore, despite the wide use of social-emotional learning (SEL) across multiple disciplines, little is known about its influence on sleep-related behavior change in re-entry populations. To address this, the Got Sleep program, designed and implemented at Hope for Prisoners (HOPE), a community site geared toward re-entry assistance, integrated occupational therapy (OT) principles and an SEL approach with practical sleep hygiene strategies to …

And Now It Blooms And Sings: The Music And Poetry Of Noël By Clémence De Grandval, Nicholas Stephen Carozza

UNLV Theses, Dissertations, Professional Papers, and Capstones

This document presents a historical background with poetic and musical analysis of Noël for voice, oboe, and piano by Clémence de Grandval (1828–1907) to contextualize the work within the lives of the composer, performers, and poet. Noël occupies an important period in Grandval’s life as one of the few pieces composed after 1900, and features a unique instrumentation of voice, oboe, and piano. The work is a musical setting of poetry by Nobel laureate Sully Prudhomme and was dedicated to oboist Louis Bleuzet and baritone Paul Daraux. This document presents biographical information, compositional background, records of performances, and analysis to …

Resilience Of Orthodontic Sealants Against Degradation And Microbial Adhesion: A Comparative Study, Michelle X. Cui

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background:

White spot lesions are one of the most common complications encountered during orthodontic treatment. These lesions begin as demineralization of enamel around the appliance due to plaque buildup, resulting in compromised aesthetics. As they continue to develop, white spot lesions progress to cavitation, potentially threatening pulpal vitality, resulting in an increased financial burden for patients. Preventative strategies include patient education, consistent oral hygiene protocols, and the use of fluoride-releasing agents. Orthodontic sealants such as Opal® Seal™ (Ultradent) (OS) and L.E.D. Pro Seal® (Reliance) (PS) have been developed to release and recharge fluoride, thereby reducing the incidence of white spot …

Cardiac Computed Tomography And Echocardiography Integration For Chronic Secondary Mitral Regurgitation Quantification, Abdulameer Jasim Jawad Al-Gburi

Sultan Qaboos University Medical Journal

Objectives: This study aimed to determine whether it would be possible to reclassify the severity of secondary mitral regurgitation (MR) using an integrated mitral regurgitant volume (RVol) derived from computed tomography (CT) and echocardiography data. Methods: This cross-sectional study was conducted at Ibn al-Bitar Specialized Center for Cardiac Surgery, Baghdad, Iraq. Systolic CT data of patients with isolated secondary MR were evaluated from June 2023 to December 2025. The image with the highest regurgitant orifice area (ROA) and the smallest left ventricular volume was chosen from the CT systolic phase. To calculate the integrated RVol (iRVol), the velocity …

Precise Kinetic Parameters For Thermal Resetting Of Clumped Isotope Signatures In Biogenic And Abiogenic Calcites, Nico Kueter, Nathan Looser, Jordon D. Hemingway, Nils B. Gies, Gregory D. Price, Alberto Perez-Huerta, Stefano M. Bernasconi

School of Geography, Earth and Environmental Sciences

Carbonate clumped isotope (∆₄₇) thermometry is a powerful tool to reconstruct paleotemperatures. However, episodes of heating or cooling can alter original ∆₄₇ values through diffusive C-O bond reordering—i.e., isotopic exchange between neighboring carbonate groups within the mineral lattice—and/or oxygen-isotope exchange between carbonate groups and water (collectively termed “thermal resetting”). Nevertheless, if precise kinetic constraints are available, altered ∆₄₇ values can be utilized to reconstruct thermal histories of sedimentary basins or to restore primary ∆₄₇ values from carbonates which experienced thermal resetting in their geological history. Here, we present new high-resolution heating experiments on optical (abiogenic) …

Multiple Intracranial Aneurysms: An International Consensus Statement, Stavropoula Tjoumakaris

Department of Neurosurgery Faculty Papers

Introduction: Multiple intracranial aneurysms (MIAs) pose diagnostic and therapeutic challenges, and widely used rupture-risk scores have not been validated for this subgroup. Research question: To develop expert-based recommendations for the diagnosis, rupture-risk assessment, treatment selection, and follow-up of patients with MIAs. Material and methods: A modified Delphi process was conducted. After topic generation from the literature, iterative questionnaires were administered anonymously online to invited experts. Consensus was prespecified as ≥70% agreement. Twenty-six of 35 invitees (74.3%) completed the survey. Results: Consensus identified the ruptured lesion in aneurysmal subarachnoid hemorrhage (aSAH) using computed tomographic angiography (CTA) and 3D rotational digital subtraction …

Liquid-Phase Chemical Melting Deposition For Anchored Nanoparticle–Nanofiber Architectures, Hiep Pham, Kiernan O'Boyle, Gracie Boyer, Jonghyun Park

Mechanical and Aerospace Engineering Faculty Research & Creative Works

We report chemical melting deposition (CMD), a manufacturing strategy designed to overcome the low mass loading and weak interfacial bonding inherent to vapor-based synthesis. Unlike conventional vapor routes, CMD leverages a transient liquid-phase transfer (TLPT) mechanism driven by the differential thermal degradation of carrier fibers to transfer and anchor nanoparticles directly onto target fibers. This process thermodynamically drives the wetting and interfacial fusion of nanoparticles, establishing a liquid-phase contact pathway that enables markedly higher active material loading. To validate the structural resilience of this fused architecture against extreme volumetric stress, we utilized lead oxide (PbO) as a model system, which …

The Purdue Rising Scholars Experience: Exploring Student Success, Robert M. Stwalley Iii, Carol S. Stwalley, Roger Tormoehlen

Purdue University Press Books

Many intelligent low-socioeconomic status high school students correctly view STEM majors as a way out of poverty, but the challenges to ultimate success are plentiful. For those who applied but did not initially gain admittance into an engineering department, the Rising Scholars program at Purdue University offered these undergraduates a pathway through college that brought them into contact with a network of professional mentors, including university professors, staff, and graduate students. Program participants were also provided opportunities to engage in team-building activities and teaching seminars that involved writing research papers focused on postgraduate careers. Although no longer in operation, the …

Research Progress On Strain Identification And Wall-Breaking Technologies Of Wall-Broken Ganoderma Lucidum Spore Powder And Its Industrial Prospects, Han Lingxian, Liang Zengenni, Ji Hainan, Zhao Chan, Zhang Mengling

Food and Machinery

Ganoderma lucidum spore powder consists of reproductive cells released during the mature stage of the fungus and concentrates the core nutrients and bioactive components of Ganoderma lucidum. Recent advances in the field of wall-broken Ganoderma lucidum spore powder were systematically summarized, with a focus on four core directions: the permitted scope and identification techniques of Ganoderma strains for health foods, optimization of wall-breaking processes and quality control, safety evaluation, and functions and mechanisms. Combined with policy orientation and market demand, future development suggestions were proposed, including strengthening strain management at the source, establishing a full-chain quality system, deepening mechanism research, …

Purification, Enzymatic Properties, And Stabilizer Screening Of Acid Protease From Trichoderma Reesei, Wu Yao, Yu Huashun, Chen Rui, Yang Zhaoshi, Li Ming, Gao Jie, Zhang Yan

Food and Machinery

[Objective] To purify and study the enzymatic properties of acid protease from the Trichoderma reesei strain, and to screen the stabilizer formula. [Methods] The acid protease is purified by ammonium sulfate precipitation, dialysis, and anion exchange column chromatography. Then, its molecular weight is determined by sodium dodecylsulfate-polyacrylamide gel electrophoresis (SDS-PAGE), and its enzymatic properties are studied. Finally, the stabilizer formula of acid protease is optimized, with an investigation into its effect on acid protease storage stability. [Results] For the purified acid protease, its specific enzyme activity is 4 849 U/mg, purification fold is 3.28 times, and relative molecular weight is …

Screening And Identification Of Tannin-Degrading Strains And Analysis Of Their Probiotic Functional Characteristics, Duan Wenjing, Yu Chong, Tian Yuan, Zhang Shumei, Su Ting

Food and Machinery

[Objective] Microbial strains with tannin-degrading capabilities were screened from natural samples, and their probiotic properties were systematically evaluated. [Methods] Three Lactobacillus plantarum strains (Y1, Y20, Y22) and Meyerozyma caribbica Y3 exhibiting high tanninase activity are selected. Probiotic characteristics including growth characteristics, antioxidant capacity, bile salt tolerance, and cholesterol degradation efficiency are investigated. Safety profiles were determined through hemolytic activity assays and standard antibiotic susceptibility testing. [Results] The experimental data reveal that M.caribbica Y3 demonstrates remarkable antioxidant activities, with a superoxide anion scavenging rate of 95.25 % in cell supernatants and a hydroxyl radical scavenging rate of 63.43 % in extracts …

Rapid Detection Of Total Anthocyanin Content In Black Rice Based On Lab Color Modes, Zhang Xun, Li Yinjun, Ding Hua, Liu Jiao, Li Yanyi, Gui Fuhao, Yang Jie

Food and Machinery

[Objective] To develop a method for the rapid detection of anthocyanin content in black rice. [Methods] This study adopts smartphone software "ColorMax" to obtain color parameters of anthocyanin standard solutions and black rice sample solutions in specific conditions. A relationship curve between color parameters of anthocyanin and its concentration is established and applied to the detection of black rice samples. [Results] The detection range of the proposed method is from 3.33 to 12.50 μmol/L, with the standard curve correlation coefficient (R2) of more than 0.99. The proposed method is employed to detect the anthocyanin content in 27 black rice samples, …

Analysis Of Particle Settlement Characteristics And Force Chain Evolution Of Rice Seeds In Silo Based On Discrete Element Method, Wang Minna, Chen Lintao, Ma Xu, Mou Xiangwei, Zhong Wenjun, Jiang Huanyu

Food and Machinery

[Objective] To reveal the movement law and force chain characteristic evolution mechanism of stored rice seed particles during the settlement process in a silo. [Methods] With the Xinliangyou 98 hybrid rice seeds as the research object, a "rice seed-silo" simulation model was established using the discrete element method (DEM) to simulate the effect of different settlement heights, grain pile components, and mass flow rates on the fundamental parameters of rice seed settlement motion. A quantitative analysis method for the force chain characteristics of the rice seed population in the silo was proposed to investigate the influence patterns of different mass …

Qualitative Analysis Methods Of Zen And Don In Maize Based On Near-Infrared Spectroscopy, Traditional Machine Learning, And Lstm, Gao Man, Qian Chengjing, Ding Ziyuan, Luo Yunjing, Zhai Chen

Food and Machinery

[Objective] To establish a rapid and accurate detection and analysis method for mycotoxins. [Methods] Based on near-infrared spectroscopy, qualitative models for the contents of zearalenone (ZEN) and deoxynivalenol (DON) in maize were established.144 naturally contaminated maize samples were used, and near-infrared spectra were collected from two sample preparations, namely maize powder and toxin extract. Five pretreatment methods were applied to process the original spectra, and two characteristic wavelength screening methods were selected to further extract effective information from the spectra. Pollution classification models for ZEN and DON were established using three machine learning algorithms, namely k-nearest neighbor classification algorithm, least …

Determination Method Optimization For Residual Solvent In Flaxseed Oil, Shi Xincai, Zhou Qin, Wuri Guga, Li Yifan, Ai Jimu

Food and Machinery

[Objective] To optimize the determination method for residual solvent in flaxseed oil. [Methods] Test flaxseed oil samples are separated using a methyl polysiloxane capillary column containing 6 % cyanopropyl-phenyl by headspace gas chromatograph (HS-GC). [Results] The linear correlation coefficient of solvent No.6 is 0.999 9, and the average spiked recovery rate is 91.0 % to 102.3 %. The original interference peak of flaxseed oil does not appear within the time range of the target peak of solvent No.6. Additionally, other common vegetable oils do not have interference peaks with large peak areas. [Conclusion] HS-GC can be used to determine the …

Application And Controversy Of "No Penalty For First Violation" Policy In The Field Of Food Safety, Shao Jiang

Food and Machinery

After the revision of Article 33 of the Law of the People's Republic of China on Administrative Penalty in 2021 established the "no penalty for first violation" system, its application in the field of food safety has attracted significant attention from both academic and practical communities. This study starts with Article 126 of the Food Safety Law of the People's Republic of China, and combine with the List of Administrative Violations Not Subject to Penalties for First Offenses issued by the State Administration for Market Regulation and local practices, such as Beijing's rule that "expired food is exempt from penalty …

Near-Freezing Point Concentration Of Orange Juice Based On Absorption Membrane Distillation, Ge Sheng, Chen Dong, Liu Jizhou, Cao Xu

Food and Machinery

[Objective] Aiming at the issues such as solute loss during the freeze-point concentration of heat-sensitive liquid materials, a near-freezing point concentration device based on absorption membrane distillation is designed and fabricated. The feasibility of the device is verified using orange juice as the research subject. [Methods] A mathematical model of the device is established. Using orange juice as the feed liquid and lithium bromide solution as the absorption solution, this paper calculates and analyzes the variation laws of the concentration rate and energy consumption ratio of concentration with factors such as membrane pore diameter, membrane tube wall thickness, mass concentration …

Intelligent Quality Detection Method For Salted Duck Eggs Based On Improved Plsr And Pp-Yoloe, Pang Min, Liu Shuwan, Ma Yanbo, Zheng Chao

Food and Machinery

[Objective] To address issues such as the difficulty in accurate internal indicator quantification, the missed detection of external defects, and fragmented testing methods in the quality inspection of pickled products (taking duck eggs as an example), thereby enhancing the accuracy, efficiency, and intelligence of comprehensive food quality inspection in automatic production. [Methods] A comprehensive quality inspection method for pickled products is constructed based on an automatic food quality inspection system, which integrates deep learning, machine learning, and multiple detection technologies (hyperspectral technology + machine vision technology). Specifically, hyperspectral imaging technology is used to collect internal optical characteristic data of pickled …

Time-Optimal Trajectory Planning For Food Sorting Robots Based On An Improved Beaver Algorithm, Wang Yahui, Zhang Guowei, Ma Qian, Huang Lifang

Food and Machinery

[Objective] To enhance the operational stability of food sorting robots and the efficiency of time-optimal trajectory planning. [Methods] A time-optimal trajectory planning method for food sorting robots based on an improved beaver algorithm (BA) is proposed. First, with the six-degree-of-freedom robotic arm of the sorting robot as the research object, a time-optimal constrained optimization model based on 4-5-4 polynomial interpolation is established. Secondly, the BA is improved by introducing adaptive beaver species classification, population spatial directional evolution, and global jump strategy, effectively balancing the global exploration breadth and local search fineness of the algorithm. The improved BA is then applied …

Changes And Causes Of Key Browning Substances In Saimaiti Apricot Wine During Storage Period, Jiang Yixuan, Feng Zuoshan, Chen Jiluan, Bai Yujia, Wu Jin, Ye Mingzhu

Food and Machinery

[Objective] To explore the variation patterns of non-enzymatic browning-related substances and indicators in Saimaiti apricot wine under different storage conditions, and the effect of these patterns on the wine body quality. [Methods] The apricot wine made from Saimaiti apricots in Kashgar, Xinjiang is used as the test material and preserved in three kinds of dark conditions: low temperature (4 ℃), normal temperature (20 ℃), and high temperature (38 ℃). Then, the physicochemical indicators are measured every 10 days, with the 0-day as reference (CK), to analyze the variation patterns of apricot wine quality during storage. Finally, endogenous factors leading to …

Non-Destructive Testing Of Kiwifruit Storage Quality Integrating Wsn And Hho-Delm, Cao Huajuan, Liu Nanshan, Zhao Quan

Food and Machinery

[Objective] To achieve real-time, non-destructive, and high-precision monitoring of multiple quality indicators of kiwifruit during storage and to address the problems of strong destructiveness, obvious lag, and the difficulty of a single data source and model to balance comprehensiveness and accuracy in conventional detection methods, a kiwifruit quality testing method integrating wireless sensor network (WSN), hyperspectral imaging, and Harris hawk optimization (HHO)-optimized deep extreme learning machine (DELM) is proposed. [Methods] Firstly, a WSN and hyperspectral imaging collaborative acquisition system is established to obtain kiwifruit storage environment parameters (temperature and humidity), fruit surface sensing data (firmness and skin color), and hyperspectral …

Optimization Of Extraction Process Of Suopiyin And Its Antioxidant And Hypoglycemic Activities In Vitro And In Vivo, Li Yaqing, Chu Xiaoqin, Cui Mengyao, Li Jing, Jia Nini, Jiang Dayuan

Food and Machinery

[Objective] Based on classical prescriptions of Xin'an Medicine, a functional food was developed to help exert antioxidant effects and maintain healthy blood glucose levels. [Methods] Based on the results of single-factor experiments, an orthogonal design was applied to optimize three factors in the extraction process, namely the solid-liquid ratio, extraction time, and number of extraction cycles. The extraction yields of total polysaccharides and total flavonoids were used as evaluation indices to determine the optimal extraction process. The in vitro antioxidant activity of Suopiyin was evaluated using the scavenging rates of DPPH, ABTS, and hydroxyl (·OH) radicals. The in vitro hypoglycemic …

Effect Of Pepsin Limited Enzymatic Hydrolysis From Wheat Bran Protein On Lipid Lowering In Vitro, Zheng Wenjing, Bai Yang, Liu Cong, Jiri Gala, Wang Jilite, Zhang Yanxia, Li Yuxin

Food and Machinery

[Objective] To elucidate the lipid-lowering effect of wheat bran protein from the Hetao region and provide a scientific basis for its deep processing and high-value utilization. [Methods] This paper employs wheat bran protein from the Hetao region as the raw material to prepare pepsin limited enzymatic hydrolysates (P1, P3, P6, and P 12), and investigates their effect on lowering lipid. [Results] Different enzymatic hydrolysates vary in vitro lipid-lowering effects, and the higher mass concentration of samples means a better effect. The cholesterol micelle solubility inhibition rate of 5 mg/mL wheat bran enzymatic hydrolysate P 1 is (45.47±0.36) %, significantly higher …

Effects Of Permeation Treatment On Textural Quality Of Malus Doumeri (Bois) Chev . Fruit Chips Dried By Vacuum Microwave, Liu Yan, Meng Yanmei, Tang Xiaoxian, Zhang Qiao, Ren Aiqing, Duan Zhenhua

Food and Machinery

[Objective] To explore the effects of permeation conditions with sucrose solution on the textural quality of Malus doumeri (Bois) Chev. fruit chips dried by vacuum microwave. [Methods] Fresh M.doumeri fruit chips are subjected to permeation treatment with permeating agents with different sugar content (20, 35, and 50 °Brix) and at different permeation temperatures (30, 65, and 100 ℃). Then, the pretreated samples are dried by vacuum microwave. The texture quality of dried M.doumeri fruit chips is evaluated regarding the color, texture, expansion rate, apparent density, volume ratio, and pore size distribution. [Results] The M.doumeri fruit chips pretreated by the permeating …

Preparation Optimization Of Trionycis Carapax Collagen Peptide Using Response Surface Methodology And Research On Antioxidant Activity, Zhang Ruiqi, Song Wei, Wu Zhiyi, Zhao Qiongyu

Food and Machinery

[Objective] To optimize the enzymatic hydrolysis process for collagen peptides from Trionycis Carapax and investigate their in vitro antioxidant activity and cytoprotective effects against oxidative damage. [Methods] With collagen peptides from Trionycis Carapax as the raw material, enzymatic hydrolysis parameters were optimized by using Box-Behnken response surface methodology. Ultrafiltration fractionation was applied to obtain collagen peptide fractions of different molecular weights, and the in vitro free radical-scavenging capacity was assessed. The cytoprotective effects were evaluated using an H2O2-induced oxidative damage model in B 16F10 cells. [Results] The optimal enzymatic hydrolysis conditions were as follows: acid protease as the enzyme additive, …

Vacuum Concentration Process And Antioxidant Activity Of Pressed Walnut Green Husk Juice, Kuerban Gulimire, Chen Kai, Wang Jing, Li Yue

Food and Machinery

[Objective] To explore the quality change trend of walnut green husk juice during the concentration process. [Methods] This paper optimizes the concentration process by the single factor combined with response surface tests, and investigates the effects of temperature, time and rotation speed on the mass fractions of polyphenols and polysaccharides. The antioxidant activity of walnut green husk concentrate is detected, and polyphenols in walnut green husk juice are identified and quantitatively analyzed by adopting high performance liquid chromatography (HPLC). [Results] The optimal concentration process of walnut green husk juice is the time of 32 min, temperature of 60 ℃, and …

Research Progress On Nutritional Components, Bioactive Properties, And Application Of Chlorella Vulgaris In Food, Xu Bingzheng, Xu Zongxi, Zhang Jian, Liang Rongrong, Liang Yusi

Food and Machinery

Chlorella vulgaris, a green microalga, is widely recognized in the food industry for its outstanding nutritional value. This review systematically summarizes the diverse nutritional components enriched in this microalga, including proteins, lipids, carbohydrates, vitamins, pigments, and minerals, as well as the various bioactivities conferred by these components, such as antioxidant, anti-inflammatory, immunomodulatory, antibacterial and antiviral, anticancer, detoxifying, adjuvant antidiabetic, antihypertensive and antihyperlipidemic, neuroprotective, antidepressant, and prebiotic activities. Additionally, the research progress of C.vulgaris in food applications is elaborated, and the current challenges in its commercialization are discussed, including the technological gap in large-scale production that coordinates nutritional composition and low-cost …