Digital Commons Network^™

Exploring The Lived Experiences Of Mid-Level Managers In The Technology Industry Supervising Subordinates During Crisis Events: A Phenomenological Study, Christianna Emily Kellman

Walden Dissertations and Doctoral Studies

No abstract provided.

Causes And Solutions For Turnover And Care Disruption In Behavioral Health, Alejandra Itzel Dayrit

Walden Dissertations and Doctoral Studies

No abstract provided.

1st National University International Conference On Health Professions Education, Sultan Qaboos University

Sultan Qaboos University Medical Journal

No abstract provided.

Liquid Fire Accelerants' Effect On Blood Detectability, Genniltza Ramirez

Themis: Research Journal of Justice Studies and Forensic Science

Five liquid fire accelerants were studied in their effects on blood detection in attempts to yield presumptive accelerant indicators to benefit fire scene investigators. The experiment involved burning different accelerant types via a 1:1 pig blood and accelerant ratio on cloth squares in trials of three, and then presumptively testing for blood using luminol. Luminol was selected for its sensitivity, subjectivity, and previous use in arson fire and thermal studies. For this study, accelerants were determined to have positive presumptive blood detection if detectable by camera for documentation. Presumptive blood detection of the accelerants resulted in: paint thinner with detection …

Understanding Behavioral And Representational Divergences Of Humans And Machines, Thomas Lasman Botch

Dartmouth College Ph.D Dissertations

Human behavior and cognition are strikingly variable: people differ from one another in their preferences and abilities, and even from themselves across situations. Yet this diversity arises from common neural machinery shaped by the complex environments humans inhabit. A central objective of cognitive neuroscience is to understand how this varied experience emerges from interactions between brains, agents, and environments. In this dissertation, I argue that comparing behavior and neural computation across humans, artificial systems, and contexts is essential for understanding the flexibility of human cognition. Across three chapters, I use this comparative approach to examine how the rich, multimodal contexts …

Toward Autonomous Wireless Networks: Spatio-Temporal Prediction Via Physics-Aware Generative Ai Models, Rahul Gulia

Theses

The realization of fully autonomous Industry 4.0 environments depends on wireless networks that are not merely connected, but predictively aware—capable of anticipating channel degradation before it disrupts mission-critical operations. In dynamic industrial environments such as automated warehouses, radio frequency propagation is governed by dense metallic infrastructure, continuously moving obstacles, and frequent line-of-sight to non-line-of-sight transitions that render the channel non-stationary and spatiotemporally complex. Conventional approaches face a fundamental dichotomy: deterministic simulators such as ray-tracing and NS-3 achieve high physical fidelity but require up to 38 hours to generate a single high-resolution SINR heatmap, making real-time adaptation computationally infeasible; empirical and …

Preparation And Characterization Of Walnut Polypeptide Liposomes With Bilayer Polysaccharide Modification, Chen Rui, Wang Fengjun, Zhang Guohong, Jin Feng, Peng Hongchun

Food and Machinery

[Objective] To improve the physicochemical stability of walnut polypeptide liposomes (WP-L), delay walnut polypeptide (WP) release, and conduct bilayer polysaccharide modification on the WP-L using sodium alginate (SA) and chitosan (CS). [Methods] The effects of modifications by CS and SA in different mass fractions on the physicochemical properties of WP-L are investigated. Then, the structural morphology of the liposomes is characterized by transmission electron microscopy (TEM) and Fourier transform infrared (FTIR) spectroscopy. Additionally, liposome stability under long-term storage conditions is examined. Finally, polypeptide release rates, release behavior, sustained-release characteristics, alongside bioactivity changes before and after digestion are evaluated via in …

Analysis And Identification Of Chromogenic Components In Lotus Root Powder, Zhang Yuhan, Xin Xiaobin, Yang Cheng, Min Rui, Shi Liangman

Food and Machinery

[Objective] To analyze and identify the coloring components in lotus root powder, clarify the reasons for the different colors of lotus root powder, and analyze the color variation patterns during brewing. [Methods] Five commercially available lotus root powder samples are analyzed. Acid-base chromogenic reactions and ultraviolet-visible (UV-Vis) spectroscopy are employed to preliminarily identify the chromogenic components. Ultra-high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS) and Fourier transform infrared spectroscopy (FT-IR) are used to determine their composition and structural units. [Results] The chromogenic components in lotus root powder are identified as proanthocyanidins, primarily oligomeric proanthocyanidins composed of catechins …

Foaming Properties And Structural Characterization Of Wheat Germ Albumin-Galacto-Oligosaccharide Covalent Complexes, Zhang Gensheng, Su Wenwen, Huang Xinyu, Du Yinan, Na Zhiguo, Fei Yingmin

Food and Machinery

[Objective] To improve the foaming properties of wheat germ albumin (WGA). [Methods] WGA was modified by wet glycosylation with galacto-oligosaccharides (GOS). The foaming capacity and foam stability of the wheat germ albumin-galacto-oligosaccharide covalent complex (WGA-GOS) were investigated, and its structure was characterized. [Results] Compared with WGA, the foaming capacity and foam stability of the WGA-GOS increased by 41.7% and 7.9%, respectively. Fourier transform infrared spectroscopy, circular dichroism, intrinsic fluorescence spectroscopy, and scanning electron microscopy analyses showed that the introduction of GOS altered the spatial structure of WGA, confirming the formation of covalent bonds between WGA and GOS. After modification, the …

Simulation And Analysis Of Drying Characteristics Of Sorghum In Vibrating Fluidized Bed, Yan Yanqi, Wan Lin, Che Gang, Wang Haochen, Xi You

Food and Machinery

[Objective] To analyze the motion, heat transfer, and mass transfer characteristics of sorghum in a vibrating fluidized bed and determine appropriate vibration and ventilation parameters to achieve efficient drying of sorghum. [Methods] Under the combined action of vibration and hot air, and based on the heat and mass transfer as well as the motion relationships between sorghum particles and the air medium during the fluidized bed drying process, a heat and mass transfer model was developed based on CFD-DEM fluid-solid coupling theory. The effects of vibration frequency, hot air temperature, and apparent wind speed on drying rate and drying unevenness …

Determination Of 12 Synthetic Pigments In Wine By Solid Phase Extraction With Ultra-High Performance Liquid Chromatography-Tandem Mass Spectrometry, Li Xin, Li Bangrui, Chen Dongyang, Zeng Dong, Zuo Jiaxin

Food and Machinery

[Objective] To establish a method for the detection of 12 synthetic pigments in wine by solid-phase extraction/ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). [Methods] After the wine is subjected to purification and enrichment via solid-phase extraction, 12 synthetic pigments are determined using ultra-high performance liquid chromatography for separation and mass spectrometry in multiple reaction monitoring (MRM) mode. The influence of matrix effect on the determination is corrected using a matrix-matched calibration curve. [Results] For the 12 synthetic pigments within the range of 0.2~20 000 μg/L, the peak area has a good linear relationship with their mass concentration, and the coefficient …

Time-Optimal Trajectory Planning For Food Sorting Robotic Arm Based On Improved Fruit Fly Algorithm, Zhang Meijing, Liu Jiacheng, Wang Yang

Food and Machinery

[Objective] To enhance sorting efficiency and motion stability and to address problems in robotic arm trajectory planning in food sorting scenarios, such as long operation time, large joint motion impact, and the tendency of algorithms to fall into local optima. [Methods] Taking the UR 5 six-degree-of-freedom food sorting robotic arm as the research object, a time-optimal trajectory planning method based on an improved fruit fly optimization algorithm (IFOA) was proposed. First, a kinematic model of the robotic arm was established, and its forward and inverse kinematic equations were solved. On this basis, a 3-5-3 piecewise polynomial interpolation method was adopted …

Process Optimization And Phenolic Compound Variation Of Apple-Raspberry Composite Fruit Vinegar During Storage, Zhang Huiming, Jin Tieyan, Li Jiajun

Food and Machinery

[Objective] To analyze the dynamic migration patterns of nutritional components in composite fruit vinegar during storage and thereby reveal the mechanism of storage conditions affecting the quality stability of the fermentation system. [Methods] Single-factor experiments combined with the surface methodology are adopted to optimize the fermentation parameters of apple-raspberry composite fruit vinegar, with the total acid mass concentration employed as the response value. Meanwhile, the composite fruit vinegar prepared by the optimized process is subjected to a 60-day storage test at ambient temperature in the dark. [Results] The optimal brewing parameters for apple-raspberry composite fruit vinegar are as follows:raspberry addition …

Construction Of A Quaternary Composite Antimicrobial Film And Its Preservation-Enhancing Effect On Cherry Tomatoes, Nie Longying, Jiao Lijun, Yang Jiamin, Ye Wenbin, Zhu Xiujuan

Food and Machinery

[Objective] To optimize the formula of a chitosan (CS)-carboxymethyl cellulose (CMC) composite film, and to enhance its antimicrobial activity and preservation effect on cherry tomatoes through the incorporation of olive pomace polyphenols (OPP) and curcumin (Cur). [Methods] CS and CMC are used as the matrix, into which OPP and Cur are incorporated. Then, the formula is optimized using response surface methodology, with the inhibition zone diameter against E.coli as the indicator. [Results] The optimal formula is 1.5% CS, 3% CMC, 8% OPP, 3% Cur, 0.9% glycerol, and 1.2% acetic acid, all based on the weight of water. The resulting CS-CMC-OPP-Cur …

Nobiletin Improves Organismal Health By Regulating Circadian Rhythms : Absorption, Mechanisms, And Delivery Strategies, Zhang Mengling, Han Lingxian, Zhao Chan, Liang Zengenni

Food and Machinery

Nobiletin, a hexamethoxyflavone unique to citrus peels, exhibits activity in regulating circadian rhythms. Characterized by a low molecular weight, it can cross the blood-brain barrier and demonstrates various biological functions, including antioxidant, anti-inflammatory, cardiovascular protective, and anticancer effects. However, limitations such as its low water solubility, high crystallinity, and poor stability hinder its nutritional and functional performance in food applications. Therefore, this review summarizes the in vivo absorption of nobiletin, its penetration through the blood-brain barrier, and the biotransformation processes of its active metabolites. Furthermore, this review discusses the regulatory effects on the central clock and peripheral clocks, as well …

Structural Characterization, Antioxidant Activity, And Hypoglycemic Effects Of Plantago Seed Polysaccharides, Liu Donglai, Wang Peng, Peng Xinyu, Sha Yixuan, Yin Xingfu

Food and Machinery

[Objective] To investigate the structural characteristics, in vitro antioxidant activity, and hypoglycemic effects of Plantago seed polysaccharides (PSP) on type 2 diabetes mellitus (T2DM) rats. [Methods] The structure of PSP is analyzed via ultraviolet (UV) spectroscopy, high-performance gel permeation chromatography (HPGPC), and ion chromatography (IC). Antioxidant activity is assessed by DPPH, ABTS, and hydroxyl free radical scavenging rates. Then, a T2DM rat model is established using streptozotocin (STZ) to assess the effects of PSP on fasting blood glucose (FBG), blood lipids, and oxidative stress markers. [Results] In an amorphous structure, PSP has a molecular weight of 1. 42×104, primarily composed …

Optimization Of Carotenoid Production From Xinhui Mandarin Juice Fermented By Rhodotorula Mucilaginosa, Liu Minghan, Jian Huali, Zhong Wujie

Food and Machinery

[Objective] To improve the utilization of waste Xinhui mandarin pulp and explore the feasibility of preparing low-cost carotenoid-producing culture media. [Methods] By using Xinhui mandarin juice as the fermentation medium, with the total carotenoid yield and biomass of rhodotorula mucilaginosa as the evaluation indexes, the components of the medium and fermentation conditions were optimized via single-factor experiments and response surface methodology. [Results] The fermentation medium is prepared with Xinhui mandarin juice, with the total sugar content controlled at 95~100 g/L, total nitrogen content at 3 g/L, and initial pH at 6. Under the conditions of 4 mL/ 100 mL inoculum …

Effects Of High-Pressure Processing On Microbial Indicators, Physicochemical Indicators, And Aroma Components Of Golden Tea Beverage, Wang Han, Yao Maojun, Cao Yingzi, Luo Kaikun, Tan Yongsheng

Food and Machinery

[Objective] To systematically evaluate the comprehensive effects of high-pressure processing (HPP) on microbial inactivation, physicochemical properties, and volatile aroma compounds of golden tea beverage, and to optimize a non-thermal processing technique, in response to the negative impact of conventional thermal sterilization on its quality. [Methods] Golden tea beverage was treated under different pressure-time combinations using HPP. Microbial indicators were determined, and microbial inactivation kinetic models were established. Changes in physicochemical properties (tea polyphenols, free amino acids, total soluble sugars, pH, and color) were analyzed, and sensory evaluation was conducted to determine the optimal processing parameters. Meanwhile, volatile aroma compounds before …

Effects Of Thermal Sterilization Conditions On The Aromatic Quality Of Traditional Korean Rice Wine, Xia Weiliang, Jin Tieyan, Xiong Sirui

Food and Machinery

[Objective] To explore the preferred conditions for thermal sterilization of Korean rice wine from the perspective of aroma component preservation. [Methods] The effects of different thermal sterilization conditions on the aroma quality of traditional Korean rice wine are evaluated by combining an electronic nose with headspace solid-phase microextraction gas chromatography-mass spectrometry (HS-SPME-GC-MS). The response values of the electronic nose sensors, as well as the types and content of volatile compounds, are determined. [Results] The response signals of the sensors R7 (inorganic sulfides), R9 (organic sulfides), R2 (nitrogen oxides), R6 (methyls), and R8 (alcohols and aldehydes and ketones) to different heat …

Effect Of Addition Amounts Of Salted Egg White On The Quality Of Fresh Wet Mung Bean Noodles, Tian Caiyun, Chen Lei, Huang Qun, Li Wenjun

Food and Machinery

[Objective] To explore the effect of different addition amounts of salted egg white on the quality and sensory characteristics of noodles, thereby utilizing the rich protein resource in salted egg white. [Methods] Noodles are prepared by incorporating salted egg white at levels of 0, 10%, 20%, 30%, and 40% (w/w, based on flour weight). Then, the noodles are evaluated by protein content, color, rheological properties, texture properties, broken rate, and sensory characteristics. [Results] Salted egg white addition significantly increases the system's protein content. At 20% addition, noodles exhibit optimal comprehensive quality: lowest cooking broken rate (6.7%), best textural properties (hardness, …

Research Progress On Detection Technologies For Florfenicol Residues In Animal-Derived Foods, Hu Xiaofei, Ge Mengjun, Wang Yao, Cai Wenjin, Xing Guangxui

Food and Machinery

As a broad-spectrum antibiotic, florfenicol is widely used in livestock, poultry and aquaculture. Due to the unregulated use by some enterprises, a large amount of florfenicol residue exists in animal-derived foods. When florfenicol enters the human body through the food chain, it can cause gastrointestinal discomfort, intoxication, and even aplastic anemia. To minimize the effects of florfenicol residues and derivatives in food on human beings, many countries have set strict limits for maximum florfenicol residues in food. Therefore, this paper summarizes the detection methods for florfenicol established in recent years and gives an outlook on their development trends.

Effects And Application Strategies Of Tannins In The Regulation Of Red Wine Color And Flavor, Zheng Haiwu, Zhao Xueping, Li Zhengying, Lei Lei, Zhang Meizhi, Xin Shengbing

Food and Machinery

Tannins are among the most important polyphenolic compounds in red wine and play a central role in determining color stability, flavor complexity, and aging potential. This review systematically summarizes the classification, structural characteristics, and the distribution and transformation mechanisms of tannins in red wine. It focuses on the differential effects of soft tannins, hard tannins, and polymerized tannins on the formation and maintenance of wine color, as well as their roles in astringency, bitterness, aroma coordination, and flavor persistence. Furthermore, the applications of tannins in fermentation, aging, and blending are summarized, revealing their important roles in promoting anthocyanin stability, enhancing …

Research Progress On The Preparation Methods And Probiotic Functions Of Postbiotics, Li Junxia, Wang Wei, Si Shufeng, Han Xiaolong, Pan Yulin, Liu Yunguo

Food and Machinery

Postbiotics are non-viable microorganisms and their preparations that are beneficial to the health of the host, mainly including dead cells of microorganisms, cell lysates, and cell metabolites. Systematically introducing the preparation methods of postbiotics, this paper focuses on reviewing their probiotic functional characteristics in maintaining intestinal flora balance, enhancing intestinal epithelial barrier function, enhancing immune regulation, promoting the body's metabolism, and regulating the nervous system. Additionally, this paper makes prospects for future applications of postbiotics in different fields.

Tourism Food Quality In Different Transportation Regions Of Henan Province, Nan Qiucai, Li Quangao

Food and Machinery

[Objective] To assess the quality and safety levels of tourism food in different transportation areas of Henan Province. [Methods] Based on publicly available food sampling inspection data from 2023 to 2024, a systematic comparative analysis was conducted on the food quality in three types of areas: highway service areas, railway lines, and areas surrounding scenic spots. Through data cleaning and classification, descriptive statistics were performed by food category and non-conforming items, and the changing trends of sampling results over the two years were compared. [Results] From 2023 to 2024, the overall non-conformity rate of tourism food in Henan Province showed …

Development Paths Of Holistic Regional Public Brand For Agricultural Products Based On Four-Tier Collaborative Mechanism, He Jie, Huang Weisu, Tang Guizhen, Wan Jin, Peng Jinyan, He Guoqing, Lu Baiyi

Food and Machinery

Considerable progress has been made in the research and construction of regional public brands for agricultural products. After experiencing several models such as the three-tier structure of "city, county, and enterprise", a brand structure based on the four tiers of "city, county, town, and enterprise" has emerged, and it has further evolved into a holistic regional public brand model that encompasses multiple industrial elements such as agriculture, light industry, cultural tourism, health care, and cultural creativity. However, during the development process, there are still problems such as inter-level and intra-level resource incoordination among brands at all levels, as well as …

A Tactile Trans-Flexor Carpi Radialis Surface Landmark Technique For Median Nerve Local Injection: A Cadaveric Study, Clark Chen, Keenan Sobol, Connor Hickey, Duncan Vannest, John Ibrahim, James Raphael

Einstein Health Papers

PURPOSE: Median nerve (MN) block under local anesthesia at the wrist is commonly performed but can be limited by anatomic variation, particularly absence of the palmaris longus tendon. This study investigates a novel trans-flexor carpi radialis (trans-FCR) technique for MN anesthesia that uses the flexor carpi radialis (FCR) tendon as a consistent surface landmark.

METHODS: Fourteen fresh frozen upper extremity cadaver specimens were used. A 25-gauge needle was inserted through the FCR sheath approximately 4 cm proximal to the wrist crease in a transverse fashion, angled approximately 0° to the vertical and parallel to the wrist crease. The trans-FCR technique …

Commercialization Of Conservation Areas: Mapping The Key Policy-Governance Issues In The Current Scholarship And Outlining A Future Research Agenda, Danis Syahroni, Ni Nyoman Bintarin Milenia, Much Taufik Tri Hermawan, Micah R. Fisher, Ahmad Maryudi

Forest and Society

The global expansion of area-based conservation has been accompanied by an upward trend in its commercialization, but research on this phenomenon remains fragmented and lacks a comprehensive analysis of its development. This study conducts a bibliometric analysis on 275 journal articles published between 1996 and 2024. Analysis identifies four foundational clusters in early scholarship, namely: ecotourism development; complex linkages between tourism and livelihood; neoliberal conservation and power relations; and, payment for ecosystem services (PES). The current research landscape, we identify, reveals a broader set of six policy/ governance-related thematic clusters, as follows: sustainable tourism and meaningful participation; tourism for poverty …

Between Tents And Concrete: Rethinking Displacement Space In Haiti, Korine Dorval

Bachelor of Architecture Theses - 5th Year

Haiti is not an anomaly; it is a case study. Since the 2010 earthquake, displacement has not resolved but compounded, layered beneath successive crises of political instability, gang violence, and natural disaster. As of 2025, 1.4 million people remain without homes, many of them inheriting a life between tents and concrete that was never meant to last this long. Yet responses remain trapped in the logic of emergency. To live between tents and concrete is to exist in suspended uncertainty where children grow up without an address and community forms despite the design, not because of it. These camps were …

The Effects Of Cinnamaldehyde On Tetrahymena Thermophila, Sydney Kurland

Publications and Research

In addition to their common use as spices in cooking and baking, cinnamon plants, Cinnamomum zeylanicum and Cinnamomum cassia for example, have long been used in herbal remedies worldwide. Cinnamon contains many vital oils and active compounds including cinnamaldehyde (CMD). Numerous studies looking at potential therapeutic effects of cinnamon have demonstrated its antioxidant, anti-inflammatory, and antimicrobial properties (1, 2, 3).   Therefore, it is important to continue studying the efficacy, benefits, and mechanisms of action of cinnamon and CMD to have a complete understanding of its full potential. Tetrahymena thermophila is a ciliated protozoan commonly used as a model organism to …

Effects Of Recurving Western North Pacific Tropical Cyclones On Downstream Ridges Over Pacific-Western North America, Xiaoyu Bai, Dmitri A. Kalashnikov, Paul Loikith, Siiri Bigalke, Alex Mitchell, Mingfang Ting, Lance F. Bosart, Deepti Singh

Geography Faculty Publications and Presentations

Recurving tropical cyclones (TC) in the Western North Pacific can affect the atmospheric circulation over Pacific‐Western North America (PWNA) via interactions with the midlatitude circulation. Using reanalysis and tropical cyclone best‐track data, we examine how recurving TCs that make extratropical transition modulate 500‐hPa ridge characteristics over PWNA during the peak (June‐September) and late (October–December) seasons. TCs recurving at lower latitudes are associated with more intense and poleward‐centered ridges relative to TCs recurving at higher latitudes, and TCs that recurve farther west are associated with relatively westward‐centered ridges. Characteristics of the prevailing midlatitude flow such as its amplitude and positioning relative …