Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 108871 - 108900 of 1740508

Full-Text Articles in Entire DC Network

Vol 16 No 1 Cover Page Jan 2025

Vol 16 No 1 Cover Page

Comparative Philosophy

No abstract provided.


Farm Resilience, Management Practices, And Producer Sentiment: Segmenting Us Farms Using Machine Learning Algorithms, Margaret Lippsmeyer, Michael Langemeier, James R. Mintert, Nathan Thompson Jan 2025

Farm Resilience, Management Practices, And Producer Sentiment: Segmenting Us Farms Using Machine Learning Algorithms, Margaret Lippsmeyer, Michael Langemeier, James R. Mintert, Nathan Thompson

Journal of Applied Farm Economics

Farm managers possess a broad spectrum of capabilities, ranging from tech-savvy, strategically focused managers to those grappling with operational challenges. Our study examines survey data from 403 US commercial producers in order to identify subsets of producers who differ in terms of resilience, management practices, producer sentiment, and other farm characteristics. Utilizing various supervised and unsupervised machine learning techniques, we uncover key farm characteristics that capture the most pronounced variations in survey responses. We then cluster the dataset using these key variables, maximizing separation between clusters and minimizing differences within clusters using Ward’s hierarchical clustering. Fisher’s exact tests are implemented …


The Economics And Productivity Of Us Cow-Calf Production, Richard Nehring, Hannah Shear, Kelvin L. Leibold, Andrew Swanson Jan 2025

The Economics And Productivity Of Us Cow-Calf Production, Richard Nehring, Hannah Shear, Kelvin L. Leibold, Andrew Swanson

Journal of Applied Farm Economics

We explore US beef cow-calf production in 2018 and estimate net returns, returns to scale, and technical efficiency associated with backgrounding versus nonbackgrounding by size and production system. We determine the relative profitability of cow-calf operations by type, region, and size. Results, using both stochastic production frontier analysis and data envelopment analysis, indicate that larger operations tend to be more scale and technically efficient than smaller operations. While larger operations may be more scale and technically efficient and have lower variable costs per cow, off-farm income helps smaller operations become competitive. The availability of detailed cost of production information in …


Financial Impact Of Beef Cow Culling: Canadian Analysis, Heidi R. Johnson, Eric T. Micheels, Kathy A. Larson Jan 2025

Financial Impact Of Beef Cow Culling: Canadian Analysis, Heidi R. Johnson, Eric T. Micheels, Kathy A. Larson

Journal of Applied Farm Economics

Culling decisions within beef production systems are not reversible, and as such, data can help decision-makers double-check heuristics to avoid costly mistakes. In this essay, we use financial methods to examine cow culling decisions, evaluating their impact on overall herd profitability. To do so, we use production and financial data from 16 “typical farms” within the Canadian Cow-Calf Cost of Production Network to explore the financial impact of different culling strategies. This essay builds on prior literature by using Canadian data, as there may be differences in costs and productivity across production regions. We identify four culling scenarios that vary …


Financial Impacts Of Postdrought Beef Cow Herd Rebuilding Through Debt Financing, Eric A. Devuyst, Hannah Shear, Derrell S. Peel, Roger Sahs, Scott Clawson Jan 2025

Financial Impacts Of Postdrought Beef Cow Herd Rebuilding Through Debt Financing, Eric A. Devuyst, Hannah Shear, Derrell S. Peel, Roger Sahs, Scott Clawson

Journal of Applied Farm Economics

Drought conditions in much of the western United States have improved, leading to opportunities for cow-calf producers to rebuild beef cow herds. Given lower beef cow herds, many producers will need to borrow funds to purchase replacement heifers. We investigate how financial positions are impacted by leveraged replacement heifer purchases. The results are useful to producers and bankers. We suggest alternatives for financially struggling producers, including delay rebuilding to avoid significantly increased financial stress


Mandatory Infringement, Charles Duan Jan 2025

Mandatory Infringement, Charles Duan

Florida Law Review

In 2005, the Food and Drug Administration required the use of chlorofluorocarbon-free propellants in albuterol inhalers. But 3M held patents on the only U.S.-approved chlorofluorocarbon-free inhaler. The agency’s regulations forced multiple generic albuterol manufacturers to choose between infringing 3M’s patents or exiting the market. This state of affairs was lucrative for 3M, perhaps good for the environment, bad for competition, and terrible for patients faced with high costs for essential medical devices. This is an example of a general phenomenon: mandatory infringement. Intellectual property prohibits certain activities, but sometimes the government also mandates these very same activities. Such situations arise …


Defeating De Facto Disenfranchisement Of Criminal Defendants, Neil L. Sobol Jan 2025

Defeating De Facto Disenfranchisement Of Criminal Defendants, Neil L. Sobol

Florida Law Review

In a democracy, voting is not only an important civic duty but also a right that governments owe to their citizens. However, by operation of law, forty-eight states deny voting rights to individuals based on criminal convictions. Activists and scholars attack de jure disenfranchisement as an improper collateral consequence that disproportionately impacts people of color. Although recent years show substantial reforms to re-enfranchise defendants, an estimated 5.17 million defendants remained ineligible to vote in 2020. While efforts to address de jure disenfranchisement remain necessary, a problem that has received considerably less attention is the de facto disenfranchisement of criminal defendants …


Children's Rights Debates, Revisited, Martha Minow Jan 2025

Children's Rights Debates, Revisited, Martha Minow

Florida Law Review

A Dunwody distinguished lecture in law that reflects on children's rights.


No Differences In Lactate Threshold Across The Menstrual Cycle In Untrained Females, Bianca Alvarenga Rambo Galletti, Grant Chesbro, Rebecca Larson Jan 2025

No Differences In Lactate Threshold Across The Menstrual Cycle In Untrained Females, Bianca Alvarenga Rambo Galletti, Grant Chesbro, Rebecca Larson

International Journal of Exercise Science

IInternational Journal of Exercise Science 18(8): 193-205, 2025. In addition to maximal oxygen consumption (VO2max), the Lactate Threshold (LT) is the other major determinant of aerobic exercise performance. This study examined the effects of the menstrual cycle (MC) phase on the LT in untrained females. Eight females and 8 males completed a LT test on a cycle ergometer. The tests were performed across three MC phases: early follicular (EF; menses), ovulatory (O), and mid-luteal (ML). The male participants (control group) were randomly assigned visits at similar time intervals as a regular 28-day cycle. Blood lactate was obtained during the …


Comparison Of Two Strategies Of Screening Experiments: Single-Shot Experiment Vs. Two-Stage Screening Experiment, Kelvin Njuki, Emil Agbemade Jan 2025

Comparison Of Two Strategies Of Screening Experiments: Single-Shot Experiment Vs. Two-Stage Screening Experiment, Kelvin Njuki, Emil Agbemade

Data Science and Data Mining

Experiments involving many factors are often complex, time-consuming, and expensive. Screening out the least important factors helps the experimenter(s) allocate the limited resources efciently to the most important factors. Supersaturated and orthogonal array designs are among the designs used to conduct screening experiments. Supersaturated designs (SSDs) are those where the number of runs (observations) is less than the number of factors, while orthogonal array (OA) designs are those where at least the columns are orthogonal to each other. In this study, we conduct a simulation study to compare two strategies of screening experiments. Strategy one is a single shot experiment …


Testing As Teaching: A Model For Fitness Assessment Practice And Service-Learning In Exercise Physiology Laboratory Education, Marc Apkarian Jan 2025

Testing As Teaching: A Model For Fitness Assessment Practice And Service-Learning In Exercise Physiology Laboratory Education, Marc Apkarian

Educational Practices in Kinesiology

This resource is intended to provide a model for fitness assessment practice to promote student learning in an undergraduate exercise physiology laboratory course. The goal is for students to gain practical experience in fitness assessment procedures, both through skills practice and service-learning opportunities. The inclusion of an assignment requiring a specified number of assessments to be completed within the term requires additional student practice opportunities. Instruction, demonstration, and initial practice of tests associated with health-related physical fitness components must occur early in the course, so as to permit sufficient opportunities, in class or outside of class, over the remainder of …


The Future Of Stealth Military Doctrine, Theodoros G. Kostis Jan 2025

The Future Of Stealth Military Doctrine, Theodoros G. Kostis

Joint Force Quarterly

This article explores the future of stealth military doctrine and argues that conventional stealth, centered on reducing radar cross-section and other detectable signatures, faces growing limitations against advanced integrated air defense systems. The author proposes shifting from a model based primarily on high speed and low observability toward one that emphasizes surprise through obfuscation. Central to this approach is the stand-in variable speed multiple-domain (SiVSMD) offensive concept, which combines artificial intelligence, autonomous unmanned systems, swarm tactics, miniaturization, electronic warfare, cyber capabilities, deception, and mosaic warfare. Small, distributed platforms would operate across land, sea, undersea, and air domains, varying their speed …


Polybian Warfare: The First Punic War As A Case Study In Strategic Competition And Joint Warfighting, Casey B. Baker Jan 2025

Polybian Warfare: The First Punic War As A Case Study In Strategic Competition And Joint Warfighting, Casey B. Baker

Joint Force Quarterly

This article uses the First Punic War between Rome and Carthage as a case study in strategic competition and joint warfighting. The 23-year conflict demonstrates how enduring political, economic, and geographic interests can produce prolonged competition marked by shifting fortunes, costly stalemates, and repeated reversals. The author highlights the importance of alliances, partnerships, and mercenary forces, showing how changes in military strength, domestic politics, and economic pressures can reshape relationships over time. Rome’s effort to challenge Carthaginian maritime dominance also illustrates the difficulty of building advantage in a new warfighting domain, requiring rapid acquisition, technological innovation, sustained investment, and operational …


It’S The Chain That Broke It: The Strategic Supply Chains Underpinning National Security, Gregory M. Tomlin Jan 2025

It’S The Chain That Broke It: The Strategic Supply Chains Underpinning National Security, Gregory M. Tomlin

Joint Force Quarterly

Strategic supply chain vulnerabilities threaten the Department of Defense’s (DOD) ability to maintain readiness and protect national security. Global supply chains, often dependent on multiple subcontractor tiers, are highly prone to disruptions from geopolitical events, foreign interference, cybersecurity risks, and shortages of critical materials, as seen during the COVID-19 pandemic and in delays like those affecting F-35 production. To address these challenges, the DOD must adopt "strategic supply chains" as a core concept in its doctrine, emphasizing continuous risk assessment and safeguards like multisourcing, supply chain nerve centers, and contingency planning. Updating key policies and doctrines, such as Joint Publications …


Bullets, Bandages, And Fairy Dust: Improving Dmo Health Services Support With Wargaming, Debra D. Buckland-Coffey, Robert P. Gerbracht, Kengo Nishida, William R. Gureck Jan 2025

Bullets, Bandages, And Fairy Dust: Improving Dmo Health Services Support With Wargaming, Debra D. Buckland-Coffey, Robert P. Gerbracht, Kengo Nishida, William R. Gureck

Joint Force Quarterly

This article argues that health services support remains insufficiently integrated into planning, wargaming, and exercises for distributed maritime operations and expeditionary advanced base operations. The authors describe the common practice of “fairy dusting,” in which planners accept unvalidated assumptions about medical support, casualty movement, logistics, and sustainment in order to keep exercises moving. In a contested Indo-Pacific environment, however, high casualty rates, extended evacuation timelines, dispersed forces, vulnerable supply chains, and limited medical capacity could place severe strain on existing health services systems. Drawing on doctrine, after-action reports, and interviews with Navy, Marine Corps, medical, and logistics leaders, the article …


Updating The Tacs/Aags For Large-Scale Combat Operations, Matthew Neuenswander Jan 2025

Updating The Tacs/Aags For Large-Scale Combat Operations, Matthew Neuenswander

Joint Force Quarterly

This article reviews the evolution of the Theater Air Control System/Army Air-Ground System (TACS/AAGS) and assesses whether its current structure is adequate for large-scale combat operations. Since the Vietnam War, TACS/AAGS has provided the command-and-control framework for integrating Army and Air Force operations involving joint fires, close air support, air interdiction, airspace control, intelligence, and other air-ground missions. The author argues that decades of counterinsurgency operations, changing Army force structures, emerging long-range fires organizations, dispersed command posts, and Air Force reductions in Tactical Air Control Party personnel have created new challenges for joint air-ground integration. Additional complications include unresolved questions …


Determining Political Objectives, Milan Vego Jan 2025

Determining Political Objectives, Milan Vego

Joint Force Quarterly

This article explains how political objectives shape grand strategy and national or coalition security strategy and argues that they must be realistic, achievable, and clearly articulated before military options are developed. Political leaders bear primary responsibility for determining these objectives but should incorporate the professional advice of senior military leaders. The author outlines a process that begins with a strategic estimate, identification and prioritization of national interests, and assessment of the enemy, available resources, and political assumptions. Political objectives may be offensive or defensive and limited or unlimited in scope, with their value and ambition affecting the level of effort, …


Is The Pla Overestimating The Potential Of Artificial Intelligence?, Koichiro Takagi Jan 2025

Is The Pla Overestimating The Potential Of Artificial Intelligence?, Koichiro Takagi

Joint Force Quarterly

This article analyzes how the People’s Liberation Army views the military potential and limitations of artificial intelligence as part of China’s broader drive toward “intelligentization.” Drawing on approximately 370 military theory articles published in PLA Daily in 2023, the author identifies four principal areas in which the PLA expects AI to transform warfare: situational awareness, military decisionmaking, unmanned weapons, and cognitive domain operations. PLA writings also discuss applications in training, logistics, and weapons development. At the same time, the PLA acknowledges significant risks, including unreliable or biased data, system malfunction, loss of human control, unintended escalation, legal and ethical concerns, …


Celtic Security In The Atlantic: How Does Ireland Secure Europe’S Western Flank?, Patrick J. Smith Jan 2025

Celtic Security In The Atlantic: How Does Ireland Secure Europe’S Western Flank?, Patrick J. Smith

Joint Force Quarterly

This article argues that Ireland has become a critical vulnerability on Europe’s western flank as Russian military activity exposes gaps in Irish air, maritime, and undersea infrastructure security. Ireland’s limited naval and air capabilities, lack of military radar, and geographic position near major transatlantic sea lanes and undersea cables create risks not only for Ireland but also for NATO and the broader transatlantic security architecture. The author considers two options for strengthening Irish defense: NATO membership or Major Non-NATO Ally status with the United States. Major Non-NATO Ally status could improve Ireland’s access to U.S. equipment, technology, training, and bilateral …


The Urgency Of Warfighting Renewal: Five Principles For Today’S Professional Military Education, Christopher M. Marcell, Gaylon L. Mcalpine, Reagan E. Schaupp, Joseph L. Varuolo Jan 2025

The Urgency Of Warfighting Renewal: Five Principles For Today’S Professional Military Education, Christopher M. Marcell, Gaylon L. Mcalpine, Reagan E. Schaupp, Joseph L. Varuolo

Joint Force Quarterly

This article argues that Professional Military Education must renew its focus on the art and science of warfighting in response to senior Department of Defense and Joint Chiefs of Staff guidance. Although PME programs have added content on China, Russia, and other contemporary challenges, the authors contend that topical updates alone do not address deeper concerns about whether military education is adequately preparing leaders for future conflict. They present five principles for reform: make warfighting the central purpose of PME; define and prioritize warfighting-related study more clearly; recognize PME degrees as professional degrees; treat joint and Service leadership as PME’s …


Being Believed: Persuasion And The Narrative In Military Operations, Brent A. Lawniczak Jan 2025

Being Believed: Persuasion And The Narrative In Military Operations, Brent A. Lawniczak

Joint Force Quarterly

This article explores the role of persuasive narratives in military operations and argues that being truthful is not enough; joint force narratives must also be believable and persuasive to intended audiences. Narratives provide context, coherence, and meaning to military actions and can shape perceptions, influence behavior, and support objectives across the competition continuum. The article identifies the core elements of a narrative, including setting, characters, plot, and moral, and explains key factors that contribute to persuasiveness, such as emotional appeal, simplicity, consistency, identification, trust, resonance, coherence, and alignment between words and actions. It also emphasizes the importance of understanding audience …


Risk: A Weak Element In U.S. Strategy Formulation, Frank Hoffman Jan 2025

Risk: A Weak Element In U.S. Strategy Formulation, Frank Hoffman

Joint Force Quarterly

Strategic risk is an inherent element of national security decisionmaking, yet it is often insufficiently incorporated into U.S. strategy formulation. Frank Hoffman argues that risk analysis should be a routine and continuous component of strategic planning rather than an exercise conducted primarily during implementation. Drawing on joint doctrine and case studies involving the Iraq War, Operation Neptune Spear, and the U.S. withdrawal from Afghanistan, the article illustrates how assumptions, institutional biases, and inconsistent approaches to risk can shape strategic outcomes. Hoffman calls for a broader, shared understanding of strategic risk across the national security community and recommends developing an interagency …


Joint Force Quarterly, Issue 116, 1st Quarter 2025, National Defense University Press Jan 2025

Joint Force Quarterly, Issue 116, 1st Quarter 2025, National Defense University Press

Joint Force Quarterly

Joint Force Quarterly 116 explores key challenges and innovations in military strategy, operations, and global security. The Forum section examines how the U.S. approaches risk in its strategy, the impact of nonstrategic nuclear weapons, and the importance of using data-driven methods in planning military operations.

In JPME Today, articles focus on how joint military campaigns succeed, the role of storytelling and persuasion in operations, and the urgent need to modernize professional military education.

The Commentary section highlights Ireland's strategic role in securing Europe’s western flank and evaluates whether China’s military overestimates the potential of artificial intelligence.

The Features section dives …


A Family Of Markov Chains, Schur Functions, And Exterior Powers, Philip Feinsilver, John P. Mcsorley Jan 2025

A Family Of Markov Chains, Schur Functions, And Exterior Powers, Philip Feinsilver, John P. Mcsorley

Journal of Stochastic Analysis

No abstract provided.


On An Asset Model Of Merton Type: Long-Term Observations In Financial Time-Series, Shuya Kanagawa, Narn-Rueih Shieh Jan 2025

On An Asset Model Of Merton Type: Long-Term Observations In Financial Time-Series, Shuya Kanagawa, Narn-Rueih Shieh

Journal of Stochastic Analysis

No abstract provided.


Breaking Barriers: Investigating Gender Dynamics In Introductory Physics Lab Classes, Bilas Paul, Shantanu Chakraborty, Ganga Sharma Jan 2025

Breaking Barriers: Investigating Gender Dynamics In Introductory Physics Lab Classes, Bilas Paul, Shantanu Chakraborty, Ganga Sharma

Georgia Journal of Science

The persistent underrepresentation of women and other gender minorities in physical science fields has been an ongoing concern. This study investigates gender dynamics in introductory physics laboratory courses, focusing on whether students of different gender identities exhibit equal inclination and confidence in conducting lab experiments, and whether they face barriers that impact their participation. Conducted across three institutions and involving non-physics STEM students enrolled in algebra-based and calculus-based physics courses, the study found mixed results, with two institutions showing no significant gender-based differences in participation levels during lab activities, while one institution demonstrated significant differences. Chi-square tests revealed no significant …


Increasing Awareness Of Burnout And Developing An Action Plan To Reduce Stress For Graduate Health Profession Students Through An Interactive Workshop, Oaklee Rogers, Zachary Baker Jan 2025

Increasing Awareness Of Burnout And Developing An Action Plan To Reduce Stress For Graduate Health Profession Students Through An Interactive Workshop, Oaklee Rogers, Zachary Baker

Internet Journal of Allied Health Sciences and Practice

Purpose: Healthcare students can experience stress and burnout before becoming practicing clinicians. Increasing education about your level of stress and understanding what burnout is are important factors in preventing burnout. Method: A 90 minute interactive workshop was developed and implemented for graduate health profession students to meet three objectives: 1) increase foundational knowledge about burnout and its impact on different health professionals, 2) assess student’s level of burnout and apply strategies to mitigate their stress, and 3) create and share a plan on how they would incorporate stress reduction strategies and/or reduce their level of burnout. Results: In total, 349 …


Eng 1001g-600 College Composition I Critical Reading & Source Based Writing, Ashley Flach Jan 2025

Eng 1001g-600 College Composition I Critical Reading & Source Based Writing, Ashley Flach

Fall 2024

No abstract provided.


Forecasting The Volatility Of Energy Transition Metals, Andrea Bastianin, Xiao Li, Ahmad Luqman Shamsudin Jan 2025

Forecasting The Volatility Of Energy Transition Metals, Andrea Bastianin, Xiao Li, Ahmad Luqman Shamsudin

Fondazione Eni Enrico Mattei Working Papers

The transition to a cleaner energy mix, essential for achieving net-zero greenhouse gas emissions by 2050, will significantly increase demand for metals critical to renewable energy technologies. Energy Transition Metals (ETMs), including copper, lithium, nickel, cobalt, and rare earth elements, are indispensable for renewable energy generation and the electrification of global economies. However, their markets are characterized by high price volatility due to supply concentration, low substitutability, and limited price elasticity. This paper provides a comprehensive analysis of the price volatility of ETMs, a subset of Critical Raw Materials (CRMs). Using a combination of exploratory data analysis, data reduction, and …


The Scarlet - Volume Ciii, No. 7 (January 24, 2025), Scarlet Staff Jan 2025

The Scarlet - Volume Ciii, No. 7 (January 24, 2025), Scarlet Staff

The Scarlet (Student Newspaper) (2011-present)

The January 24, 2025 edition of The Scarlet (est. 1939), Clark University's student-run newspaper. The Scarlet is intellectually and editorially independent of the University.