Digital Commons Network^™

Perspectives On Physical Activity From People With Parkinson’S Disease Who Do Not Engage, Heather Hunter, Jennifer Freeman, Hilary Gunn

School of Health Professions

PurposeDespite substantial evidence supporting the benefits of physical activity, People with Parkinson’s disease (pwPD) struggle to remain active. Previous research on physical activity has largely focused on those already engaged. This study aimed to capture the perspectives of pwPD who perceived themselves as inactive.Materials and MethodsConstructivist Grounded Theory was used to explore the beliefs, attitudes, and meaning of physical activity in PwPD who self-identified as inactive. Twenty-one participants consented to participate and were interviewed. Interviews were transcribed verbatim and coded. Data collection and analysis occurred simultaneously, using a constant comparative approach.FindingsFive categories were developed: four that helped explain a lack …

Machine Learning Approaches For Predicting Biochemical Oxygen Demand And Ammonium Nitrogen: A Decade-Long Weekly Field Study At A Full-Scale Water Resource Recovery Facility, Hoda Khoshvaght, Ratish Ramyad Permala, Amir Razmjou, Mehdi Khiadani

Research outputs 2022 to 2026

Unlike previous studies that rely on high-frequency (15-min or hourly) datasets, this study is among the first to use low-frequency (weekly) data to evaluate the performance of linear and nonlinear machine learning (ML) algorithms for predicting biochemical oxygen demand (BOD) and ammonium nitrogen (NH4⁺-N) in the primary and secondary treatment effluents from the Subiaco Water Resource Recovery Facility (WRRF) in Western Australia. Various feature selection methods, including filters, wrappers, and embedded methods, were employed to identify the most effective approach that achieves the highest model performance while enhancing computational efficiency. The results demonstrate that a reduced set of …

Review Of Sustainable Development In The Baked Food Industry : Innovations From Raw Materials, Processing To Packaging, Wang Yujia, Ma Shunzhang, Feng Muyu, Hou Dianzhi, Zhou Sumei

Food and Machinery

From the orientation of the global baked food industry toward health and sustainable development in recent years, this paper systematically reviews the innovations and progress across three core dimensions: raw material substitution, process optimization, and packaging improvement. First, regarding raw materials, conventional wheat flour is replaced with ingredients such as whole-grain flours and plant-based food by-products. Natural functional additives and novel protein sources (e.g., plant proteins, insect proteins, and microbial proteins) are developed to enhance the nutritional and health value of products and realize the efficient utilization of resources. Second, in the core process, techniques such as dough mixing, fermentation, …

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, …

Analysis Of Composition Variation In Ginseng With Different Fruit Colors Using Desorption Electrospray Ionization Mass Spectrometry Imaging Technology, Han Lusheng, Wang Yudan, Li Genyue, Yang Kaili, Wang Enpeng

Food and Machinery

[Objective] To investigate the differences between red-fruit and yellow-fruit ginseng from the perspective of compositional tissue distribution using mass spectrometry imaging technology. [Methods] Desorption electrospray ionization mass spectrometry imaging (DESI-MSI) is employed to visually characterize saponin components in fresh ginseng tissues with two distinct fruit colors. Additionally, the total saponin, total flavonoid, and total polysaccharide content in the samples are quantitatively determined. [Results] Under the condition of mass spectral errors below 15 mg/kg, a total of 14 saponin components, including malonylated ginsenosides such as mRb 1, are identified. Significant spatial distribution differences in saponins are observed across tissues within the …

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 …

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 …

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 …

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 …

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 …

Design And Experiment Of Camellia Oleifera Fruit Grading And Shelling Processing Line, Liu Mingyong, Jin Zixuan, Zhan Quanshuai, Chen Zihao, Wang Yanqing

Food and Machinery

[Objective] To address the common problems existing in current Camellia oleifera fruit shelling equipment, such as easy damage to seeds, poor integrity of shells, and unsatisfactory processing effect of fresh fruits. [Methods] A disc grading and rubbing type Camellia oleifera fruit production line is designed by integrating a feeding machine, a disc grader and three rubbing shelling machines. Taking the feeding speed, classification accuracy rate and classification radius error as indicators, the discrete element simulation analysis is conducted on the feeding machine and the disc grader. With the shell-breaking rate and seed-breaking rate as indicators, a joint simulation of the …

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 …

Effect Of Young Apple Pectin Coating On Preservation Of Winter Jujube, Wang Zaolan, Xia Wenhui, Hou Manwei, Song Hui, Li Jiaxue, Wang Fei, Xue Jia

Food and Machinery

[Objective] To research the preservation effects of young apple pectin (YAP) coating treatment on winter jujubes during storage. [Methods] Dali winter jujubes were used as the experimental material, and they were coated with 1 % (mass fraction) YAP, commercial citrus pectin (CP), and commercial apple pectin (AP). The quality and physiological indicators of the winter jujubes during storage were measured and analyzed. [Results] The weight loss, decay rate, reddening rate, and ascorbic acid loss in the pectin-coated groups are all lower than those in the control group, with the YAP treatment group showing the most significant effects, particularly in reducing …

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 …

Effects Of 1-Methylcyclopropene And Sulfur Dioxide On Ripening, Softening, And Antioxidant Properties Of Bayberry In Modified Atmosphere Packaging, Shi Xiaomeng, Zhang Jingjin, Lin Qi, Zhang Huiyun, Bao Yuanyuan

Food and Machinery

[Objective] To explore the effects of different modified atmosphere packaging (MAP) treatments on the preservation of Dongkui bayberry during storage. [Methods] Dongkui bayberry from Shiping County, Yunnan Province is taken as the test object and stored in different MAP bags to determine and analyze the ripening, softening, and antioxidant properties during postharvest storage. [Results] Compared with the control group, during storage at 4 ℃, the combined treatment of 1-methylcyclopropene (1-MCP) + sulfur dioxide + poly (butylene itaconate) (PBI) physically activated fresh-keeping bags can effectively maintain the quality and high antioxidant properties of bayberry. After 14 days of storage, this combined …

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 …

Effects Of Different Heat Treatment Methods On Physical Properties And Freeze-Dried Quality Of Tremella Fuciformis, Fan Yufei, Wu Bingbing, Shi Nengpai, Zhang Yuanhui, Lin Xiangyang

Food and Machinery

[Objective] To determine the optimal pretreatment method that preserves the colloidal structure of Tremella fuciformis and ensures shelf-life stability via systematic comparison between hot-water blanching (80 ℃) and steam blanching (about 100 ℃). [Methods] A series of time gradients is set for each blanching treatment. Then, the effects of the two blanching processes on the water absorption and swelling ratio, microstructure, and texture profile (TPA) of fresh T.fuciformis are evaluated. Furthermore, the whiteness, rehydration ratio, and water activity of the freeze-dried products are measured to comprehensively evaluate the modulating effects of different heat media on the quality of T.fuciformis. [Results] …

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, …

Research Status And Application Of Plant Protein Amyloid Fibrils, Wang Pengwei, Chen Jun, Wang Haoqiang, Shuai Xixiang, Dai Taotao

Food and Machinery

Most natural plant proteins have dense spherical structures, reducing their functionality and accessibility to proteases, which limits their application in the food industry to some extent. The preparation of plant protein amyloid fibrils with high aspect ratio and excellent interfacial properties through acid-heat-induced self-assembly can significantly improve the physicochemical properties, nutritional value, and functional characteristics of plant proteins. This study reviews the formation mechanism and preparation methods of acid-heat-induced self-assembly of plant protein amyloid fibrils, summarizes the relationship between their structure and properties, discusses the application directions of plant protein amyloid fibrils, and looks forward to their future research directions.

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 …

Progress In The Application Of Molecularly Imprinted Polymers In The Detection Of Food Additives, Fan Dongni, He Hongyuan

Food and Machinery

The improper use of food additives poses a threat to food safety and human health, making it essential to establish sensitive and rapid detection methods for food additives. Molecular imprinting technology, which enables the specific and selective recognition of template molecules in real samples, has been widely applied in the fabrication of molecularly imprinted polymers. The emergence of this technology provides a new perspective for the detection of food additives. This paper outlines novel preparation methods and materials for molecularly imprinted polymers, reviews research progress over the past five years on their application in food additive sample pretreatment and the …

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) …

A Comparative Performance Analysis Of Task Allocation Methods In Uav-Sdn Networks, Yasameen Ali Al Janabi, Ahmed Mhdi Al-Salih

Journal of Intelligent Informatics, Networking, and Cybersecurity

Task allocation is really important for how unmanned aerial vehicle-software-defined networking networks work and how much energy they use. This is especially true when the network is big or small and when things around it change. We looked at three ways to assign tasks: giving them out randomly giving them out in a manner that maintains load balance, and using something called ``particle swarm optimization'' We tried these methods in two situations: when the unmanned aerial vehicle-software-defined networking network is in open space and when it has to deal with obstacles. We used several unmanned aerial vehicles and tasks: 10 …

Miss Ogilvy Does Not Find Herself: The Repression Of Queer Expression Post World War I, Kennedie Krieger

2026 Symposium

World War l was a historical period of intense societal change, and although it brought upon a lot of devastation, there were also groups of people that experienced liberation because of the war. Radclyffe Hall’s short story “Miss Ogilvy Finds Herself” is an example of the ways in which the war offered relief for queer women who had previously been expected to exist within rigid gender roles. Through an uncommon perspective, readers are able to get a sense of the ways in which gendered societal expectations shifted during the war and the positive outcomes this brought about. Although these hopeful …

Gyntok: The Influence Of Social Media On The Gynecologic Health Of Adolescents And Young Adults, Katherine Lukas Md, Madeline Ross Md, Ms, Tazim Dowlut-Mcelroy, Lauren Roth Md, Patricia Huguelet Md, Shanna Combs Md, Ana Patricia Torga Md, Eugenie Lehembre-Shiah Md, Martha Perry Md, Swetha Naroji Md, Mba

Research Showcase

Background:

Social media plays a significant role in improving access to information regarding gynecological health. However, exposure to misinformation is prevalent, and studies have found that gynecological content on social media is often low quality and inaccurate. Despite the widespread use of social media among adolescents and young adults (AYA), the extent to which it influences their gynecological health remains unclear.

Objectives/Goal:

This study aims to characterize the influence of social media on gynecological health in AYAs, evaluate the impact of digital marketing, and identify strategies used to assess the credibility of online content.

Methods/Design:

This IRB-approved multi-site, cross-sectional survey …

The Making Of An Extremist: How Do We Become Someone Else’S Nightmare?, María Paula Morales

The Confluence

This article explores how ordinary people can be pulled into extremist movements and what psychological forces drive that process. It looks at three perspectives: social identity theory, which explains how group belonging shapes behavior, identity development, which shows how people searching for meaning may find it in extremist causes; and social neuroscience, which connects radicalization to brain activity linked to fear, loyalty, and moral judgement. Together, these approaches show that radicalization is not simply about ideology but about identity, emotion, and belonging. By understanding these dynamics, we can find better ways to prevent extremism and promote healthier, more inclusive communities.