734 resultados para National Defense University. Institute for National Strategic Studies.


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Objective. To determine the association between nativity status and mammography utilization among women in the U.S. and assess whether demographic variables, socioeconomic factors healthcare access, breast cancer risk factors and acculturation variables were predictors in the relationship between nativity status and mammography in the past two years. ^ Methods. The NHIS collects demographic and health information using face-to-face interviews among a representative sample of the U.S. population and a cancer control module assessing screening behaviors is included every five years. Descriptive statistics were used to report demographic characteristics of women aged 40 and older who have received a mammogram in the last 2 years from 2000 and 2005. We used chi square analyses to determine statistically significant differences by mammography screening for each covariate. Logistic regression was used to determine whether demographic characteristics, socioeconomic characteristics, healthcare access, breast cancer risk factors and acculturation variables among foreign-born Hispanics affected the relationship between nativity status and mammography use in the past 2 years. ^ Results. In 2000, the crude model between nativity and mammography was significant but results were not significant after adjusting for health insurance, access and reported health status. Significant results were also reported for years in U.S. and mammography among foreign-born born women. In 2005, the crude model was also significant but results were not significant after adjusting for demographic factors. Furthermore, there was a significant finding between citizenship and mammography in the past 2 years. ^ Conclusions. Our study contributes to the literature as one of the first national-based studies assessing mammography in the past two years based on nativity status. Based on our findings, health insurance and access to care is an important predictor in mammography utilization among foreign-born women. For those with health care access, physician recommendation should further be assessed to determine whether women are made aware of mammography as a means to detect breast cancer at an early stage and further reduce the risk of mortality from the breast cancer.^

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In recent years, it has become apparent that salicylic acid (SA) plays an important role in plant defense responses to pathogen attack. Previous studies have suggested that one of SA's mechanisms of action is the inhibition of catalase, resulting in elevated levels of H2O2, which activate defense-related genes. Here we demonstrate that SA also inhibits ascorbate peroxoidase (APX), the other key enzyme for scavenging H2O2. The synthetic inducer of defense responses, 2,6-dichloroisonicotinic acid (INA), was also found to be an effective inhibitor of APX. In the presence of 750 microM ascorbic acid (AsA), substrate-dependent IC50 values of 78 microM and 95 microM were obtained for SA and INA, respectively. Furthermore, the ability of SA analogues to block APX activity correlated with their ability to induce defense-related genes in tobacco and enhance resistance to tobacco mosaic virus. Inhibition of APX by SA appears to be reversible, thus differing from the time-dependent, irreversible inactivation by suicide substrates such as p-aminophenol. In contrast to APX, the guaiacol-utilizing peroxidases, which participate in the synthesis and crosslinking of cell wall components as part of the defense response, are not inhibited by SA or INA. The inhibition of both catalase and APX, but not guaiacol peroxidases, supports the hypothesis that SA-induced defense responses are mediated, in part, through elevated H2O2 levels or coupled perturbations of the cellular redox state.

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"Sponsored by Institute of Latin American Studies, University of Texas at Austin and Department of Urban and Regional Planning, College of Architecture and Environmental Design, Texas A&M University."

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Over the last 3 decades, dramatic labor market changes and well-intentioned but uninformed policies have created significant officer talent flight. Poor retention engenders substantial risk for the Army as it directly affects accessions, development, and employment of talent. The Army cannot make thoughtful policy decisions if its officer talent pipeline continues to leak at current rates. Since the Army cannot insulate itself from labor market forces as it tries to retain talent, the retention component of its officer strategy must rest upon sound market principles. It must be continuously resourced, executed, measured, and adjusted across time and budget cycles. Absent these steps, systemic policy, and decisionmaking failures will continue to confound Army efforts to create a talent-focused officer corps strategy.

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Developing leaders through experience, formal training, and education is a long-standing hallmark of the U.S. Army. Maintaining its excellence as a developmental organization requires vigilance, however. Authorized strength and inventory mismatches, an inverse relationship between responsibility and formal developmental time, and sparse nonoperational development opportunities are serious challenges the Army must address. Doing so requires a talent development strategy firmly rooted in human capital theory. Such a strategy will recognize the value of continuing higher education, genuinely useful evaluations, and the signals associated with professional credentials.

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This is the fourth of six monographs focused upon officer talent management in the U.S. Army. In it, the authors continue their examination of how the U.S. Army accesses, develops, retains, and employs officer talent. In particular, they focus upon the ways in which dynamic labor market conditions and generational preferences have shaped service propensity among potential officer prospects.

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Title from cover.

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This guide examines the role of restoration of public services within the broader context of stability operations. The extent to which public service reconstruction takes place depends on the mission, the level of resources, and the host country context. This paper provides guidance helpful to U.S. peacekeeping personnel in planning and executing stability operations tasks related to restoration of public sector services and infrastructure. It is designed to supplement existing and emerging guidance, and is specifically relevant to addressing the needs of public sector rebuilding in a post-conflict situation by peacekeeping forces. The material presented here draws both from theory and analytic frameworks and from on-the-ground experience of practitioners.

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"As currently interpreted, it is difficult to see why the Nuclear Nonproliferation Treaty (NPT) warrants much support as a nonproliferation convention. Most foreign ministries, including that of Iran and the United States, insist that Article IV of the NPT recognizes all states' "inalienable right" of all states to develop "peaceful nuclear energy". This includes money-losing activities, such as nuclear fuel reprocessing, which can bring countries to the very brink of acquiring nuclear weapons. If the NPT is intended to ensure that states share peaceful "benefits" of nuclear energy and to prevent the spread of nuclear bomb making technologies, it is difficult to see how it can accomplish either if the interpretation identified above is correct."--P. 3

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Analyses of the War in Afghanistan frequently mention the declining or shaky domestic support for the conflict in the United States and among several U.S. allies. This paper dates the beginning of this decline back to the resurgence of the Taliban in 2005-06 and suggests that the deteriorating course of the war on the ground in Afghanistan itself along with mounting casualties is the key reason behind this drop in domestic support for the war.

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Efficient talent employment is at the core of the Army Officer Human Capital Model. However, the Army's current employment paradigm is unequal to the needs of a professional, volunteer Army facing the twin challenges of a competitive labor market and an increasingly complex global operating environment. It unduly prioritizes "fairness" when making assignments, has a narrowly defined pathway to senior leadership ranks, cannot see the talent it possesses, and suffers from severe principal-agent problems. Optimal employment theories, information age tools, and well-regulated market mechanisms can help the Army match individual officer talents against specific work requirements, reducing risk and achieving the depth and breadth of talent it needs, both now and in the future.