969 research outputs found

    Striking the Balance: US Army Force Posture in Europe, 2028—A Study Sponsored by the Office of the Secretary of the Army

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    Within the context of Europe, the US Army must develop a force posture that best navigates the tensions between deterring or defeating armed conflict at an acceptable cost, successfully competing below armed conflict, and maintaining global responsiveness and institutional flexibility through the global operating model and dynamic force employment. While Russia’s economy, and consequently military capability will likely shrink over the next 10 years, which can make them more dangerous as the Kremlin continues to try to punch above its weight. The ideal force posture needs to accomplish a range of on-going and contingency missions and also be adaptive enough to remain viable despite any number of potential swings in resources, military balance, or the domestic politics of allies. This study recommends five possible strategic approaches and specifies what conditions and priorities optimize each. The principal investigators recommend investing in a multidomain alliance. This strategic approach enables the joint force and multinational partners to get the most of their capabilities and makes the best use of the Army’s top modernization priorities, such as long-range fires in a way that alters the strategic balance of a theater to avert a potentially catastrophic, albeit low probability, scenario of armed conflict. More importantly, this strategic approach is far more stable in a crisis, as it does not place policymakers in having to rush this critical, escalatory capability into theater at a moment of high tension. Moreover, invest in a multidomain alliance has the flexibility to allow a later build-up of heavy forces if conditions still warrant.https://press.armywarcollege.edu/monographs/1906/thumbnail.jp

    Reconciling the Characteristics vs. Factors Models for Explaining Stock Returns

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    Daniel and Titman (DT) (1997) disclaim the Fama-French three factor model in favor of a firm characteristics based model to explain stock returns. Davis, Fama, and French (2000) find this characteristics-based model outperforms their model only for the 20.5 year time period from July 1973-December 1993, but the three factor model is robust for the 68-year period from 1929- 1997. We find the DT period represents a unique macroeconomic environment in that significant interaction effects exist between the default (and term) risk premia innovations and returns. Incorporating these effects into a traditional three-factor model help explain the 1973-1993 “characteristics model puzzle,” providing insight into market returns for portfolio managers during economic environments comparable to the DT period

    From Military to Healthcare: Adopting and Expanding Ethical Principles for Generative Artificial Intelligence

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    In 2020, the U.S. Department of Defense officially disclosed a set of ethical principles to guide the use of Artificial Intelligence (AI) technologies on future battlefields. Despite stark differences, there are core similarities between the military and medical service. Warriors on battlefields often face life-altering circumstances that require quick decision-making. Medical providers experience similar challenges in a rapidly changing healthcare environment, such as in the emergency department or during surgery treating a life-threatening condition. Generative AI, an emerging technology designed to efficiently generate valuable information, holds great promise. As computing power becomes more accessible and the abundance of health data, such as electronic health records, electrocardiograms, and medical images, increases, it is inevitable that healthcare will be revolutionized by this technology. Recently, generative AI has captivated the research community, leading to debates about its application in healthcare, mainly due to concerns about transparency and related issues. Meanwhile, concerns about the potential exacerbation of health disparities due to modeling biases have raised notable ethical concerns regarding the use of this technology in healthcare. However, the ethical principles for generative AI in healthcare have been understudied, and decision-makers often fail to consider the significance of generative AI. In this paper, we propose GREAT PLEA ethical principles, encompassing governance, reliability, equity, accountability, traceability, privacy, lawfulness, empathy, and autonomy, for generative AI in healthcare. We aim to proactively address the ethical dilemmas and challenges posed by the integration of generative AI in healthcare

    The Canadian Army Medical Corps affair of 1916 and Surgeon General Guy Carleton Jones

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    The rapid expansion of military medical service in the First World War, successfully completed under the direction of Surgeon General Guy Carleton Jones, remains an extraordinary achievement in Canada’s history. In 1916, a conflict of personalities threatened confidence in the service. Eventually Prime Minister Sir Robert Borden’s intervention restored the status quo, but the affair eclipsed Jones’s outstanding career

    A combination of plasma DAO and citrulline levels as a potential marker for acute mesenteric ischemia

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    Introduction: There is no valid and reliable diagnostic test for early  diagnosis of acute mesenteric ischemia (AMI). The aim of this study was to measure the plasma levels of diamine oxidase (DAO) and citrulline inAMI to gain insight into its early diagnosis.Material and methods: A total of 21 Wistar albino rats were divided into three groups, that is, control group, short-term ischemia group, and prolonged ischemia group. The superior mesenteric artery was occluded for15 min in the short-term ischemia group and for 12 h in the prolonged ischemia group. Twelve hours later, the experiment was terminated and plasma DAO and citrulline levels were measured. Intestinal tissue wasevaluated for the histopathological changes.Results: Compared to the control group, the short-term and prolonged ischemia groups showed significant increases in the plasma levels of DAO, whereas the plasma citrulline levels decreased significantly. Prolongedischemia caused a larger increase in the plasma DAO levels and a larger decrease in the plasma citrulline levels compared to the short-term ischemia (p0.011 and p0.021, respectively). Intestinal damage was shown to develop more in the prolonged ischemia group (p0.001).Conclusion: In the early period of AMI, the plasma DAO levels increase while citrulline levels decrease, and the extent of these changes depends on the duration of ischemia.Keywords: animal model; experimental; intestines; diamine oxidase; citrullin

    The weeping behavior in anorexic and bulimic females

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    Background: The aim of the study was to examine the proneness, the functions and triggering situations of weeping in anorexic and bulimic women. Methods: Participants were 36 anorexic and 31 bulimic female patients and 56 age-matched female controls. All women completed the Questionnaire on Adult Crying. We limited our study to results on 'crying proneness', 'functions of crying' and 'determining factors of crying'. Results: Bulimic patients reported to have cried significantly more often in the last 4 weeks, to be more likely to cry in situations of distress and to have used weeping significantly more often as a manipulative behavior than control women. Anorexic patients rated their tendency to cry significantly lower and experienced weeping as significantly more negative than controls. Conclusions: Compared to control women, anorexic patients associated weeping with negative feelings as opposed to bulimic patients who appeared to use weeping on an intentional basis. These deviations from control women seem to mirror the introvert character of anorexic patients and the extrovert impulsive personality of patients with bulimia nervosa, respectively.
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