Digital Commons Network^™

Investigation Of The Distribution Of The Mental Load Of Household Invisible Labor Tasks, Taylor Ann Kormes

ETD Collection

Parenting can be a stressful time. There are many factors that can influence how burdened a parent feels. The purpose of this study was to investigate the mental load of invisible labor household tasks undertaken by adult parents in the United States. This was accomplished by administering a survey that integrated a household task instrument to measure mental load and demographic information. The survey was distributed online via social media. Participants took the survey on Qualtrics. 161 participants responded to the survey. After removing participants who did not complete vital parts of the survey, 123 participants’ data were left for …

Exploring Black, Indigenous, And Other People Of Color’S Opinions, Experiences, And Breadth Of Knowledge On Indigenous Psychedelic Healing Methods For Mental Health In The United States, Daiyah Lanae Williams

ETD Collection

Psychedelic-assisted psychotherapy (PAP) is gaining increased attention for its potential to address mental health concerns; however, little is known about how Black, Indigenous, and other People of Color (BIPOC) perceive psychedelic medicine within the sociocultural realities that shape their mental healthcare experiences. The current study examined attitudes toward and willingness to use psychedelic medicine for mental health among BIPOC adults in the U.S., including investigating how attunement to spirituality/transcendence, meaningful exposure to prior psychedelic experiences, medical mistrust, and importance of identity concordance with providers contribute to these attitudes and willingness. Fifty participants were recruited to complete an online survey with …

The Relationship Between Parental Intrinsic Emotion Regulation And Extrinsic Child-Focused Emotion Regulation On Parent Stress, Leigh M. Richards

ETD Collection

Parenting stress is a significant public health concern, which research indicates is closely tied to parents’ emotional regulation capacities. Parents must manage their emotions (intrinsic regulation) while guiding their children’s emotional development (extrinsic child-focused emotion regulation). Research has examined these components independently but there is little empirical work exploring how a parent’s intrinsic emotion regulation capabilities and extrinsic child-focused emotion regulation capabilities jointly relate to their stress. The purpose of this present study was to examine how parents’ ability to regulate their own emotions and respond to their child’s emotions relates to their parenting and general stress. Specifically, this study …

Dying To Be Heard: The Power Of Words In The Lived Experience Of “Severe And Enduring Anorexia Nervosa”, Limor Weinstein

ETD Collection

Anorexia nervosa, especially when it lasts for several years, is one of the most challenging illnesses to treat and has a high mortality rate. Despite advancements in treatment and care, over 25% of individuals with severe and enduring anorexia nervosa do not fully recover, with many continuing to live with the illness for many years, often facing serious consequences such as disability, early death, or suicide. This Heideggerian phenomenological study explores the lived experiences of individuals who have been diagnosed with anorexia nervosa for over seven years, with a specific focus on communication and messages received, related to the illness …

Research Progress On Detoxification And Degradation Technologies For Mycotoxins In Grains, Liang Xuexue, Zhang Yani, Luo Shan, Li Yongjun, Sun Jianyun

Food and Machinery

Mycotoxins are secondary metabolites produced by fungi during their growth. Widely observed in grains and feeds, these toxins pose a significant threat to both human and animal health, resulting in substantial economic losses. Therefore, this paper systematically reviews the principles, application effects, advantages, and disadvantages of mainstream detoxification and degradation technologies, including physical detoxification methods (heat treatment, radiation, adsorption, low-temperature plasma, and photocatalysis), chemical detoxification methods (ammonia treatment, fumigation, and ozonation), as well as biodegradation methods (microbial adsorption, microbial degradation, and enzymatic degradation). It specifically introduces the breakthroughs of new technologies such as low-temperature plasma, novel nano-adsorbent materials, and high-temperature …

Advances In Microwave Drying For Fruits And Vegetables Based On Quality-Efficiency Synergistic Optimization, Pu Zilin, Li Mengqing, Zhang Xuetao, Li Mengyao, Yang Xuhai, Zhang Qian

Food and Machinery

Fruit and vegetable drying constitutes a critical step in food processing, where process optimization should focus on both quality preservation and efficiency enhancement. Among different drying technologies, microwave drying has garnered significant attention due to its characteristics of high efficiency and energy conservation. Therefore, taking microwave drying as the research subject, this study elaborates on the principles and characteristics of various microwave drying techniques, highlighting the challenges for quality-efficiency synergistic optimization in practical applications. Subsequently, by reviewing the applications and development trends of different drying equipment, the study reveals critical bottlenecks faced by existing technologies for this optimization, prospecting the …

Adherence To The Eat-Lancet Diet And The Risk Of Heart Failure In Individuals With Cardiovascular-Kidney-Metabolic Syndrome Stages 0–3: A Prospective Cohort Study, Peng Fu, Hong Zheng, Kuangyi Wu, Yulong Lan, Dan Wu, Weiqiang Wu, Huancong Zheng, Zefeng Cai, Yuxian Wang, Qiuyue Lin, Bo Zhang, Youren Chen

Research outputs 2022 to 2026

Background and objective – In 2019, the EAT-Lancet Commission on Healthy Diets from Sustainable Food Systems proposed the EAT-Lancet planetary health diet as a universal reference dietary pattern aimed at promoting human health while minimizing environmental degradation. However, epidemiological evidence regarding the association between adherence to the EAT-Lancet diet and the risk of heart failure (HF), particularly among individuals with cardiovascular-kidney-metabolic syndrome (CKMs) stages 0–3, remains limited. Therefore, this study aimed to examine the associations between adherence to the EAT-Lancet dietary pattern, its individual dietary components, and the risk of HF among individuals at CKMs stages 0–3. Materials and methods …

Book Reviews, Usawc Press

The US Army War College Quarterly: Parameters

No abstract provided.

Luxury Of Entertainment: Positioning Live Events As Third Places, Kelsie T. Martin

Honors College Theses

This study examines the shift of live entertainment into a luxury commodity and its implications for social accessibility and cultural participation. Rising ticket prices, dynamic pricing models, and industry consolidation restrict access to concerts and festivals to higher-income audiences, as seen through companies such as Live Nation. This increasing trend in the entertainment industry contradicts the original purpose of live entertainment and music events as a shared cultural experience.

By incorporating Ray Oldenburg’s theory of “third places,” this research explores how live events can function as inclusive social spaces that foster community, belonging, and social connection. Using an applied case …

Developing A Method For Controlled Substance Analysis Using Lcms For Future Dart Ms Applications, Carol N. Muñiz Silva

Honors Theses

Liquid chromatography–mass spectrometry (LC-MS) is an analytical technique used to separate and identify compounds and is widely applied in forensic toxicology and controlled substance analysis due to its strong capabilities in detection, identification, and quantification. In this experiment, a method for analyzing acetaminophen was developed using mobile phases of 0.1% formic acid in water and 0.1% formic acid in methanol. Method development focused on adjusting elution time, mobile-phase gradient, and injection volume. The optimized method produced reliable analysis of acetaminophen across 100–7500 ng/mL. Quantitative and qualitative data were collected through chromatograms and mass spectra of the prepared solutions. Although a …

Re-Imagining The Rimac River: Designing With Mythology, Ecology, And Community, Rodrigo Carbajal

Bachelor of Architecture Theses - 5th Year

The Rímac River sustains Lima, yet the city has treated it more like an edge condition than a living system. Its water moves through the metropolis as a source of life, but its presence is buried behind concrete walls, traffic corridors, pollution, and fragmented access. Over time, the river has been reduced to a controlled channel, stripped of the cultural and spatial relationships that once connected it to everyday life. This thesis begins with that contradiction: the Rímac remains vital to Lima’s survival, but has been pushed out of the city’s public imagination. This project argues that the river’s current …

Architecture Of Sobriety: Redesigning Rehabilitation Centers Beyond The Institutional Framework, Coraima Perez-Portillo

Bachelor of Architecture Theses - 5th Year

What if alcohol relapse is not only a weakness of will, but a failure of the environment? Addiction recovery is often understood as a clinical process, yet sustained sobriety depends equally on the reorganization of daily habits. Research on alcohol use disorders demonstrates that addictive behaviors are reinforced through spatial triggers and embodied routine. Post-detox recovery is particularly fragile: the body is sober, but the triggers that sustained addiction remain. The question is not only how to treat addiction, but how to design the spaces in which people learn to live without it.

This thesis investigates how architecture can combat …

Addressing The Abandoned Typology Of Mills, Terra M. Castresana

Bachelor of Architecture Theses - 5th Year

As anthropologists have shown, rivers are foundational to the creation of human settlement, and many cities design their urban fabric to interact with their respective rivers. Despite the scale of the Chattahoochee River, however, a typical visitor of Atlanta might not see the river as it is covered with highways and other infrastructures. Since the inception of colonial Atlanta as a railroad town in the nineteenth century, the urban design deviated from having the rivers be central to the city’s evolution as scholarship shows. Despite this structural arrangement, there was still an existing relationship with its rivers when waterways, most …

Synthergy: Social Deduction And Deception In Llm-Powered Agents, Lauren Campbell, Andrew Forney

Honors Thesis

Synthergy is an online social deduction game designed to enable comparative analysis of how large language model-powered agents engage in social deduction and deception under conditions of asymmetric information. Inspired by social deduction games such as Town of Salem, Throne of Lies, and Mafia, the game consists of two factions, Harmony and Discord, to which agents are secretly assigned. Agents must infer others’ affiliations through dialogue, in-game abilities, and voting behavior. To evaluate agent behavior, we conducted 100 simulated games across six agent types: a random baseline agent (RandomSynth), an LLM-based agent (Synth), a chain-of-thought agent (CoT Synth), a Bayesian …

Adaptive Two-Derivative Runge–Kutta–Nyström Method With Trigonometric Fitting Approach, Nur Nabila Huda, Khai Chien Lee, Nurul Huda Abdul Aziz

Turkish Journal of Mathematics

A fifth-order trigonometrically-fitted explicit two-derivative Runge–Kutta–Nyström method with an adaptive step size strategy, denoted as ATFRKN5, is proposed for efficiently solving second-order ordinary differential equations of the form u^″(x) = f(x, u(x)) that exhibit oscillatory behavior. The order conditions of the method are derived using Taylor series expansion, enabling the construction of two-derivative Runge–Kutta–Nyström schemes up to orders four and five. Trigonometric fitting is applied by incorporating the basis functions e^iλx and e^−iλx, λ ∈ ℝ, allowing the method to adapt naturally to problems with dominant frequencies. …

On Sequences Arising From The Action Of Modular Group, Tuncay Köroğlu, Bahadir Özgür Güler

Turkish Journal of Mathematics

This paper examines the sequences produced by the natural action of specific elements of the modular group on extended rational numbers. The polynomial sequences Pr(c) and Qr(c) are derived from the orbit of the point at infinity under a specific modular transformation. These sequences satisfy linear recurrence relations, which are analyzed using generating functions. The polynomials encode k-Fibonacci numbers, and studying their behavior modulo a fixed integer m reveals notable arithmetic and combinatorial properties. We also explore the connection between these modular actions and Farey graphs, illustrating the hyperbolic transformations as nested geodesic paths in the upper half-plane.

A Module Theoretic Approach To (B,C)-Invertibility, Tuğba Pakel, Burcu Üngör, Handan Köse, Sai̇t Halicioğlu, Abdullah Harmanci

Turkish Journal of Mathematics

In this paper, we introduce and investigate the concept of an (r, f)-inverse in the context of modules, drawing inspiration from the (b, c)-inverse, which is the analogous notion in ring theory. We demonstrate the uniqueness of (r, f)-inverses in modules whenever they exist. We provide some necessary and sufficient conditions for the existence of (r, f)-inverses in modules.

Existence Results And Uniqueness For Some Caputo-Hadamard Fractional Differential Equations Via The Measures Of Noncompactness, Manochehr Kazemi, Mohammad Esmael Samei, Hamid Reza Sahebi, Osman Tunç

Turkish Journal of Mathematics

In this paper, the existence of solutions to Caputo–Hadamard fractional differential equations is investigated using measures of noncompactness and the Petryshyn fixed point theorem. Several new results are established, recovering certain earlier results under weaker conditions. Finally, two illustrative examples are presented.

Proportion Of Nilpotent Subgroups In Finite Groups And Their Properties, João Victor Monteiros De Andrade, Leonardo Santos Da Cruz

Turkish Journal of Mathematics

​This work introduces and investigates the function J(G) = Nil(G) / L(G) , where Nil(G) denotes the number of nilpotent subgroups and L(G) the total number of subgroups of a finite group G. The function J(G), defined on the interval (0,1], represents the proportion of nilpotent subgroups relative to the total number of subgroups, including trivial ones. It serves as a tool for analyzing structural patterns in finite groups, particularly in nonnilpotent families such as supersolvable and dihedral groups. Analytical results reveal the distribution of J(G) values across products of dihedral groups, emphasizing its density over (0,1]. Additionally, a probabilistic …

Optimal Control Of An Inverse Two-Point Boundary Value Problem For A Pseudoparabolic Equation With Samarskii–Ionkin-Type Boundary Conditions, Khanlar R. Mamedov, Tursun K. Yuldashev, Zholdoshbek Zh. Shermamatov

Turkish Journal of Mathematics

This paper investigates an inverse optimal control problem for a pseudoparabolic equation governed by nonlinear control function in a two-point boundary condition. The differential equation is considered under Samarskii Ionkin-type boundary value conditions with respect to the spatial variable x. Necessary optimality conditions are derived, and the associated nonlinear functional equations are analyzed. Using the contraction mapping principle, the existence and uniqueness of the control function are established. Subsequently, the redefinition function and the state function are determined. The convergence of their respective Fourier series representations is rigorously proven.

Close-To-Convexity Properties Of Inverse Hypergeometric Functions, Ijlal Hussain, Wasim Ul Haq, Janusz Sokol

Turkish Journal of Mathematics

The normalized inverse hypergeometric function zF_ν⁻¹(d, e, f; z) = ∑_s=0^∞ A_sz^s+1 is considered, where A_s = (f)_s(ν + 1)_s / (d)_s(e)_s. We aim to provide constraints on d, e, f, and ν under which zF_ν⁻¹(d, e, f; z) belongs to various subclasses of the class of close-to-convex functions. Coefficient characterizations of these families are derived under additional conditions. Some associated operators …

Ricci Solitons On Manifolds With Norden Golden Structure, Bang-Yen Chen, Foued Aloui, Mohammed Nisar, Majid Ali Choudhary

Turkish Journal of Mathematics

​The concept of golden structure is a compelling area with wide-ranging applications. In this paper, we introduce and investigate the notion of Norden golden Ricci solitons. In particular, we investigate Ricci solitons on a Norden golden Riemannian manifold of constant sectional curvature. Furthermore, we explore Ricci solitons and Norden golden Ricci solitons on Norden golden Riemannian manifolds whose potential vector fields are killing, conformal killing, concurrent, or homothetic.

Comparisons Of Some Weighted Mixed Biased Estimators For The Linear Regression Model, Dünya Karapinar, Murat Polat, Ni̇met Özbay, Selahatti̇n Kaçiranlar

Turkish Journal of Mathematics

This paper presents comparative results on the two-parameter weighted mixed estimator, which is a distinct class of estimator defined to address the problem of multicollinearity. The two-parameter weighted mixed estimator is a general estimator that includes the weighted mixed estimator, the weighted mixed Liu estimator, and the weighted mixed ridge estimator. Detailed comparisons among the mentioned estimators are carried out based on the matrix mean square error. Theoretical findings are supported by two numerical examples in addition to a Monte Carlo simulation study.

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 …

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 …

Exploration In The Mechanism Of Alcohol Extracts Of Moringa Oleifolia Leaves In Improving Sleep, Gao Wenrong, Liu Weiliang, Zhao Dongmei

Food and Machinery

[Objective] To explore the effect of Moringa oleifera leaves, a characteristic plant resource in Yunnan Province, on the sleep improvement mechanism. [Methods] The chemical composition of ethanol extract from M.oleifera leaves (MOLEE) is determined by targeted metabolomics technology. The efficacy of MOLEE in improving sleep is evaluated in vivo through health food standard assays (mouse autonomous activity monitoring, pentobarbital sodium-induced mouse sleep test, and pentylenetetrazole-induced mouse convulsion test). Network pharmacology, molecular docking, and molecular dynamics simulation are employed in vitro to preliminarily investigate the mechanism of MOLEE on sleep-improving efficacy. [Results] MOLEE is rich in some active ingredients such as …

Effects Of Key Factors In Hot Air Drying On The Physical Properties Of Ulva Prolifera, Wang Zhen, Yang Jin

Food and Machinery

[Objective] To explore the quality change patterns of Ulva prolifera during the hot air drying process. [Methods] The effects of three key drying factors (hot air temperature, air velocity, and material thickness) on the physical properties of U.prolifera (including moisture content, porosity, specific heat capacity, and thermal conductivity) are systematically investigated. Then, the influence patterns of each factor are clarified by single-factor experiments combined with multi-factor correlation analysis. Finally, a partial least squares regression prediction model is constructed. [Results] An increase in temperature significantly reduces the moisture content, increases porosity and specific heat capacity, while causing a downward trend in …

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.