Digital Commons Network^™

The Effectiveness Of Casual Group Learning In Introductory Finance Tutorials

Journal of Economics and Finance Education

Many universities require introductory financial management for undergraduate business majors. This study measures whether classroom study groups have a more positive effect on student perceptions and performance than traditional teacher driven classes. As an alternative to traditional tutorial teaching, Classroom Study Groups is an application of casual group learning and is consistent with Constructivist learning theories. The study reports significant differences between the two approaches, with student engagement and satisfaction reported at higher levels amongst those students involved in the traditional, teacher-led approach, and no significant difference between the two in regard to student performance. Interesting relationships are found between …

Ipot: Is China Interfering With U.S.-Mexican Efforts To Reduce Organized Crime?, Kevin Snow

Florida Journal of International Law

This Article will examine whether or not providing international protection for cannabis-based intellectual property of U.S.-Mexican corporations and nonprofits could reduce organized crime. Part I of this comment will discuss North and Central American law and enforcement practices against manufacturers, and Part II will compare it with Chinese law and practices. Part III will conclude.

Lead Levels In Fingernails Of Hemodialysis Patients And Healthy Individuals In Karbala, Iraq: A Biomonitoring Study Using Icp Oes, Baker A. Joda, Rusul Jaafar, Rana Hameed, Hiba Sadeq Alheloo, Sadeq Jaafar Hasan Dwenee

Karbala International Journal of Modern Science

The use of non-invasive media to evaluate the association between trace elements and diseases has spread in recent centuries. Fingernail samples were collected from 103 individuals, including both healthy participants and those undergoing hemodialysis, residing in Karbala, Iraq, and ranging in age from 21 to 75 years. The concentrations of lead were determined using an Inductively Coupled Plasma Optical Emission Spectrometry (ICP OES). Statistical analyses using F-tests and two-tailed t-tests were conducted to examine the effects of health status, gender, smoking status, and their interactions on lead levels in washed fingernails. The concentrations of Pb in washed fingernails of healthy …

The Interactive Relationship Between Fusobacterium Necrophorum, Bacteroides Pyogenes, And Porphyromonas Levii In Driving Inflammatory Uterine Disease, Dianjun Cao, Mehwish Ammad, Bindu Subhadra, Mrunmaya Kumar Panda, Thomas J. Inzana, Federico Cunha, Segundo Casaro, Kristi L. Jones, Rosabel Ramirez-Hernandez, John J. Bromfield, Klibs N. A. Galvão, Soo Jin Jeon

Faculty Publications - Biological Sciences

Background

Bovine metritis is associated with uterine microbiota dysbiosis, characterized by the proliferation of Gram-negative anaerobes, including Fusobacterium necrophorum, Bacteroides pyogenes, and Porphyromonas levii. However, the mechanisms by which these opportunistic pathogens proliferate together and contribute to disease remain unclear. This study aimed to identify the interactions among these bacteria and to elucidate their role in the development of metritis.

Methods

F. necrophorum, B. pyogenes, and P. levii were isolated from the uteri of cows with metritis and cultured anaerobically in chopped meat carbohydrate broth. Bacterial growth, coaggregation, biofilm formation, endotoxin production, protease activity, adhesion to bovine endometrial epithelial (BEND) …

Fuzzy Pi Controller For Frequency Control Of A Diesel-Pv-Battery-Based Islanded Ac Microgrid, M. S. Elborlsy, Ramadan M. Mostafa, Hossam E. Keshta, Mohamed A. Ghalib

Mansoura Engineering Journal

Effective management of modern electrical grids requires intelligent and adaptable control mechanisms to effectively balance power supply and demand, particularly in times of significant disturbances. Microgrids predominantly harness renewable energy sources (RES), which are inherently variable, for electricity generation. However, due to these fluctuations, conventional control systems often struggle to optimize performance under diverse operational conditions. This study addresses the need for improved frequency regulation in isolated AC microgrids (MGs) by proposing a fuzzy PI (FPI) controller capable of dynamically adjusting control strategies to accommodate disturbances such as three-phase faults, sudden changes in load, and variations in solar irradiance. A …

Undifferentiated Blast Crisis In Chronic Myeloid Leukaemia: A Rarest-Of-The-Rare Complication In A Patient On Tyrosine Kinase Inhibitor, Priyanka Mishra, Sanjeevan Sharma

Sultan Qaboos University Medical Journal

No abstract provided.

Antibacterial Activities Of Methylating Cowpea Globulins, Seham Abdel-Shafi, Ali Osman, Eman Tartour, Mahmoud Sitohy, Gamal Enan

Al-Farahidi Biomedical Journal

Background: Cowpea (Vigna unguiculata) is a nutritionally important legume rich in storage proteins, mainly 7S and 11S globulins. These proteins have gained recent attention due to their potential bioactive properties, including antimicrobial effects. Chemical modification such as methylation may enhance their functional and biological activities.

Objectives: This study aimed to extract and characterize cowpea protein isolate (CPI) and its globulin fractions (7S and 11S), evaluate their antibacterial activities, and investigate the effect of methylation on enhancing their potency.

Materials and Methods: CPI was extracted from cowpea seeds, and 7S and 11S globulins were purified and designated as P7S …

Killer Heat: The Disaster Fema Refuses To Own, Robert R.M. Verchick

University of Chicago Legal Forum

Extreme heat, also known as a “heatwave,” is by far the leading weather-related cause of death in the United States.1 In 2023, extreme heat took 2,300 lives—more than all the deaths attributed to hurricanes, earthquakes, tornadoes, droughts, wildfires, winter storms, and floods combined. Harms from extreme heat, which are especially severe in disadvantaged communities, will only increase as the climate continues to break down. Despite these facts, in more than 70 years of comprehensive disaster response, no president has ever declared a “major disaster” based on extreme heat, nor has the Federal Emergency Management Agency (FEMA) ever recommended he do …

Vaccines For Pandemics: Lessons From Covid-19 For H5n1 And Beyond, Alison Mccarthy, Michael S. Sinha

University of Chicago Legal Forum

The COVID-19 pandemic brought unprecedented challenges to vaccine development and distribution. Never before has a vaccine been developed so quickly and distributed so rapidly. But compared to past pandemics and public health crises—like polio or even the more recent H1N1 pandemic—the United States government’s COVID-19 vaccine strategy depended greatly on the private sector.

COVID-19 vaccines were credited with saving millions of lives worldwide, but private companies reaped these rewards, retained their patent rights, and profited from the vast and pressing need for their vaccines. Now, five years later, not every company views its vaccine work as a success. Financial hits …

Realizing The World Health Organization’S Constitutional Mission: Equitably And Everywhere, Sam Halabi, Lawrence Gostin

University of Chicago Legal Forum

COVID-19 revealed deeply embedded inequalities in countries’ capacity to respond to public health disasters. From 2020 to 2024, the content and scope of international health law expanded to address these deep inequities, including a new pandemic agreement and significant changes to the International Health Regulations (IHR). Recent moves by the Trump Administration leveled significant losses on this new global health law infrastructure. At the heart of this infrastructure is the World Health Organization (WHO)—the UN’s specialized agency, which for 77 years has led the world toward realizing the human right to the highest attainable standard of mental and physical health. …

Crisis And The Constitution: The Role Of Civil Liberties In Times Of National Security Threat, Michele Goodwin, Allison M. Whelan

University of Chicago Legal Forum

In this Article, we contribute to the unfolding debate around civil liberties and civil rights in times of political, cultural, and health crises. As this Article was drafted, the National Guard was deployed in Los Angeles, California and Washington, D.C. by the President of the United States. In Oregon, a federal judge issued a final order barring the Trump administration from deploying troops to Portland. These events renew questions related to federalism, states’ rights, individual civil rights, and civil liberties. As chaos unfolds, what is the rule of law and role of civil liberties in times of real or purported …

A Continuum Of Responsibility: An Examination Of The Human Right To A Healthy Environment Of Present And Future Generations, Sarah Dávila A.

University of Chicago Legal Forum

Youth-led advocacy has been at the forefront of the protection of the right to a healthy environment in the face of a triple planetary crisis: loss of biodiversity, environmental degradation, and climate change. Globally, youth have called upon international bodies to provide guidance as to how States and private actors can be held accountable for human right violations. They have demanded that States protect not merely the human rights of present generations, but those of future generations. This Article explores recent developments in international human rights law, including the recent Committee on the Rights of the Child General Comment No. …

Effects Of Student Response System In University Foundation Courses – Excerpts From A Doctoral Study, Grace M. Tuttle

International Journal of Teaching and Learning in Higher Education

This paper is an excerpt on the author's doctoral study titled “Effects of Student Response System in University Foundations (UF) Courses.” This quasi-quantitative study explored the effects of iClicker technology on students’ academic performance based on final course grades, participation, and attendance in university foundation courses. This study evaluated data from 7,812 participants between spring 2017 to autumn 2019. The logistic regression analysis showed that for students in the clicker group, the odds of earning a final grade of A or B increased by a factor of 1.28 for each one standard deviation increase in participation z-score, controlling for other …

Nasa: Suit Designs For Space Station

Ron Carleton Papers

Photocopy of an article from Jan 11, 1988 detailing how NASA (National Aeronautics and Space Administration) will be evaluating two designs of space suits for the Space Station.

Create @ State 2016, Arkansas State University - Jonesboro

Create@State

No abstract provided.

Create @ State 2014, Arkansas State University - Jonesboro

Create@State

No abstract provided.

Create @ State 2013, Arkansas State University - Jonesboro

Create@State

No abstract provided.

Create @ State 2012, Arkansas State University - Jonesboro

Create@State

No abstract provided.

Create @ State 2015, Arkansas State University - Jonesboro

Create@State

No abstract provided.

The Consequences Of Attempted Human Perfection: Genetic Enhancement And Why It Is Immoral, Kiran S. Sajnani

Mako: NSU Undergraduate Student Journal

In the field of biomedical ethics, genetic enhancement—the alteration of human DNA to increase characteristics beyond normal function—is a highly contested topic. Genetic enhancement presents serious ethical issues, especially when gene therapy seeks to treat or prevent disease. This paper makes the consequentialist case that genetic enhancement, whether somatic or germline, is intrinsically unethical because of its ethical, societal, and systemic ramifications. The autonomy of future persons is violated by germline enhancement, which also runs the risk of deepening socioeconomic gaps and escalating intergenerational inequity. Even though it only affects the individual, somatic augmentation undermines human diversity and agency by …

Technical Addendum: Autonomous Thermal Balancing & Closed-Loop Architecture For Allfromair™ (Gen 3), Vesa Olavi Lius

Defensive Publications Series

This document serves as a formal Technical Addendum to the ALLFROMAIR™ Unified Thermodynamic Platform. It discloses the proprietary "Terra" configuration, a system architecture designed for autonomous Atmospheric Water Generation (AWG) and Tri-Generation in inland, arid, or industrial environments lacking natural thermal sinks (e.g., sea or lakes).

The addendum details the engineering of an Internal Hydrological Loop coupled with a thermal accumulator buffer. Key disclosures include:

* Closed-Loop Thermodynamics: A method for recirculating process water to achieve Zero Liquid Discharge (ZLD) while balancing thermal loads internally.

* Active Thermal Balancing: The utilization of the Third Stage (SVRU 2) as a dynamic …

Determination Of Residues Of 9 Herbicides Of International Concern In Dairy Products By High Performance Liquid Chromatography-Tandem Mass Spectrometry, Yan Wanying, He Minheng, Li Mingming, Huang Shiying, Chen Wenjing, Shen Yingtao, Huang Jiale

Food and Machinery

[Objective] To establish a rapid and precise determination method for 9 herbicides (asulam, hexazinone, indaziflam, norflurazon, pyrasulfotole, pyroxasulfone, sulfosulfuron, tebuthiuron, and tepraloxydim) in dairy products that are of international concern but without established maximum residue limits (MRLs) in China. [Methods] The samples are ultrasonically extracted with acetonitrile-acetone mixed reagent (v∶v=8∶2), and the extract is purified by the dispersed solid-phase extraction adsorbents Florisil, N-propylethylenediamine (PSA), and anhydrous MgSO4. A high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method is established for determination. [Results] The nine herbicides are completely separated within 7 min. Their linear relationships are good within the range of 2.00~100 …

Freshness Determination Of Winter Jujube Based On Improved Faster R-Cnn, Dai Haotian, Liu Wenlian, Zhu Meiyan, Zhang Ling, Zhu Liang

Food and Machinery

[Objective] To propose a deep learning-based method for the freshness determination of winter jujube by dividing the fruit into five freshness stages, aiming to improve determination accuracy and reduce the influence of light reflection. [Methods] In this study, a freshness determination method is proposed for winter jujube by combining an efficient ResNet, an attention mechanism, and Faster R-CNN. First, ResNet is used for convolutional processing on the image to extract the global feature map. Next, key features are enhanced through a channel attention module, and multi-scale features are extracted using a feature pyramid network (FPN). Then, Faster R-CNN selects candidate …

Effect Of Key Nrps Genes On Synthesis Of The Active Peptide Dlap In Ganoderma Sinense, Xiao Zhenyan, Wu Qiang, Wang Xiaoling, Huang Jia, Wang Haojin, Liu Gaoqiang

Food and Machinery

[Objective] To explore the key non-ribosomal peptide synthetase (NRPS) genes of the active peptide Asp-Leu-Ala-Pro (DLAP) with angiotensin-converting enzyme (ACE) inhibitory activity identified from the mycelia of Ganoderma sinense. [Methods] The effects of key NRPS genes on the synthesis of DLAP are analyzed by PEG-mediated genetic transformation experiment, real-time fluorescence quantitative PCR (qRT-PCR), and high performance liquid chromatography (HPLC). [Results] qRT-PCR results reveal that compared with the wild type, the silenced transformants of GSI_00900 have the reductions of 44.99%, 68.88%, and 66.17% in the expression level of this gene. The three silenced transformants of GSI_ 10299 show the reductions of …

Optimization Of The Preparation Process And Antioxidant Activity Of Oligopeptides From Lueyang Black-Bone Chicken, Zhang Xinyue, Chen Rui, Chen Liwei, Li Haicheng

Food and Machinery

[Objective] To prepare oligopeptides from Lueyang black-bone chicken in order to increase its added value and to determine their antioxidant activity. [Methods] Lueyang black-bone chicken meat was used as the raw material. Two proteases were employed for compound enzymatic hydrolysis, and response surface methodology was applied to optimize the preparation process of Lueyang black-bone chicken oligopeptides and to evaluate their antioxidant activity. [Results] The optimal preparation process for compound hydrolysis of Lueyang black-bone chicken oligopeptides was as follows: neutral protease and acid protease in combination, substrate concentration 3 g/100 mL, enzymatic hydrolysis time 4 h, total enzyme addition 9 300 …

Flavonoid Identification And Antioxidant Activity Of Ampelopsis Grossedentata Leaf Extract, Dai Haoxin, Yang Dawei

Food and Machinery

[Objective] To investigate the composition and antioxidant properties of flavonoids from the Ampelopsis grossedentata leaf extract. [Methods] Qualitative identification and quantitative determination are conducted on flavonoids from the extract by high-performance liquid chromatography (HPLC). Then, with tea polyphenols and vitamin C as controls, the scavenging rates of the extract are determined against four free radicals, including OH-, DPPH, O-2, and ABTS+, and the antioxidant effect of the extract is studied during potato chip storage. [Results] The results show that the flavonoid and polyphenol content of the extract are 41.07% and 45.50%, respectively. There are five types of flavonoids in the …

Effects Of Lactic Acid Bacteria Fermentation Modification On The Processing Properties Of Whole Grain Corn Flour, Liu Ji, Zhang Hongyan, Zhao Qiyuan, Ren Jian, Dong Qiang

Food and Machinery

[Objective] This experiment aims to modify extruded whole corn flour through lactic acid bacteria fermentation to investigate its impact on the processing properties of dough. [Methods] Single-factor experiments are conducted using fermentation temperature, fermentation time, and inoculation amount of lactic acid bacteria as key variables. Response surface methodology is employed to optimize the fermentation conditions. After optimization, the modified extruded whole corn flour is blended with unmodified extruded whole corn flour in varying proportions, and its effects on the texture properties of the dough and cooking loss are investigated. [Results] Under the conditions of a lactic acid bacteria suspension concentration …

Extraction And Purification Process Optimization Of Mango Kernel Polyphenols And Their Antioxidant Activity In Vitro, He Lingling, Hu Qinjiabao, Huang Bin, Luo Xu, Li Yunxin, Mai Xinyun

Food and Machinery

[Objective] To explore the extraction and purification process and antioxidant activity of mango kernel polyphenols. [Methods] The extraction process of mango kernel crude polyphenols is optimized by the orthogonal experiment. Mango kernel polyphenol extract is further separated and purified by the macroporous adsorption resin. Meanwhile, the antioxidant activities of mango kernel polyphenols before and after purification are analyzed with Vc as the control. [Results] The optimal process extraction for mango kernel polyphenols is a solid-liquid ratio of 1∶40 (g/mL), 50% ethanol, an extraction temperature of 60 ℃, and an extraction time of 70 min. Under these conditions, the polyphenol yield …

Optimization Of Tea-Flavored Rice Cake Preparation Process And Its Quality Analysis Based On Fuzzy Mathematics Comprehensive Evaluation Method, Chen Long, Xiang Chenxi, Yin Fangqi, Zheng Xueke, Li Jianfang

Food and Machinery

[Objective] To prepare tea-flavored rice cakes using a mixture of japonica rice flour and glutinous rice flour as the main raw material with the addition of tea dust by-products and analyze their quality. [Methods] Single-factor experiments were conducted to explore the effects of different tea dust addition amounts, white sugar addition amounts, and japonica-to-glutinous rice ratios on sensory evaluation and texture of tea-flavored rice cakes. Based on fuzzy mathematics sensory evaluation and comprehensive weighted scores of texture, orthogonal experiments were used to optimize the optimal preparation process for tea-flavored rice cakes and analyze their physicochemical and in vitro digestion characteristics. …

Research Progress On The High-Value Processing And Utilization Of Processing By-Products Of Litopenaeus Vannamei, Wei Jie, Lin Haisheng, Huang He

Food and Machinery

Litopenaeus vannamei is one of the major cultivated species of shrimp products in China. With the rapid development of aquaculture technology, the production of L.vannamei has continued to rise in recent years, which has become an important economic pillar for export earnings and rural revitalization in coastal regions. The primary commercial processing products of L.vannamei include shrimp meat, shrimp surimi products, frozen whole shrimp, and preprocessed frozen shrimp. Substantial quantities of by-products (heads and shells) are generated during processing, yet current utilization strategies remain underdeveloped. As a result, issues such as resource waste, environmental pollution, and the reuse of by-products …