1,939 research outputs found

    Low-mass X-ray binaries from black-hole retaining globular clusters

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    Recent studies suggest that globular clusters (GCs) may retain a substantial population of stellar-mass black holes (BHs), in contrast to the long-held belief of a few to zero BHs. We model the population of BH low-mass X-ray binaries (BH-LMXBs), an ideal observable proxy for elusive single BHs, produced from a representative group of Milky Way GCs with variable BH populations. We simulate the formation of BH-binaries in GCs through exchange interactions between binary and single stars in the company of tens to hundreds of BHs. Additionally, we consider the impact of the BH population on the rate of compact binaries undergoing gravitational wave driven mergers. The characteristics of the BH-LMXB population and binary properties are sensitive to the GCs structural parameters as well as its unobservable BH population. We find that GCs retaining ∼1000\sim 1000 BHs produce a galactic population of ∼150\sim 150 ejected BH-LMXBs whereas GCs retaining only ∼20\sim20 BHs produce zero ejected BH-LMXBs. Moreover, we explore the possibility that some of the presently known BH-LMXBs might have originated in GCs and identify five candidate systems.Comment: 27 pages, 18 figures, 7 tables, submitted to MNRA

    PROJECTED COSTS AND RETURNS - RICE, LOUISIANA, 1997; PROJECTED COSTS AND RETURNS - SOYBEANS, CORN, MILO, WHEAT, AND WHEAT-SOYBEAN DOUBLE CROP, SOUTHWEST LOUISIANA, 1997

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    Farmers are annually faced with critical management decisions that impact the employment of production inputs for various crop enterprises and the combination of crops that will be assembled into a cropping system. The need for reliable information is crucial if sound production decisions are t o be made. Planning information plays a pivotal role in the development of 1997 production plans by farmers and is important in supporting their efforts to secure the necessary resources to carry out their plans. In addition, information regarding production alternatives and costs and returns for major crop enterprises is needed by extension personnel, researchers, lending institutions, and others involved in agriculture or agribusiness. This information has become all the more critical with the enactment of Federal Agricultural Improvement and Reform (FAIR) Act in 1996. The purpose of this report is to provide for tenant and owner operator situations the 1997 projected cost and return estimates for the following enterprises: rice in Southwest, Central, and Northeast Louisiana and soybean, corn, milo, wheat, and wheat-soybean double crop in Southwest Louisiana.Farm Management,

    Does working capital management impact profitability in xthe medical device industry? Evidence from Germany and the United States

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    This Work Project analyses the effect of working capital management (cash conversion cycle and its components) on profitability (gross profit margin) for the medical device industry, an industry not previously researched. It uses a sample of 151 observations from market leaders of the world (United States) and Europe (Germany) for the period 2016-2020. Findings indicate that managers may extend cash conversion cycle and days inventory outstanding to increase gross profit margin. German managers may also reduce days sales outstanding and expand days payable outstanding, while managers in the United States may not consider them due to insignificance

    Red Hot Chili Peppers

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    Women in History--Mary McLeod Bethune

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    Unlike many of her contemporaries, Mary McLeod Bethune is not a household name. This is perhaps fitting. Despite the fact that she made major contributions in politics and education, she epitomized the quiet, passionate African-American woman of the mid-20th century, the mothers of the race, the homemakers and spiritual guides (Hanson, 2003, p. 2)

    Estudios sobre la donación de Dios en el A. T.

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    Rags to Metaphorical Riches

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    Managers of Medicine: The Interplay Between MCOs, Quality of Care, and Tort Reform

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    This paper examines Corporate Health and argues the policy wisdom of imposing malpractice liability on MCOs. Part II chronicles the effective control MCOs exercise over medical care decisions. Part III discusses states\u27 non-tort regulations of MCOs and their ineffectiveness in making MCOs accountable for that control. Part IV then argues that the policy behind MCO tort liability makes sense and that Congress should clearly authorize states to impose malpractice liability on MCOs whose decisions negatively impact patients\u27 medical treatment. Tort liability forces MCOs to consider the nonmonetary costs of negligent medical necessity decisions borne by man- aged care consumers and then incorporate them into their assessment of the trade-offs between health care cost and quality. It also makes MCOs respect and adhere to the treatment quality levels demanded by society. The public has evidenced its desire to contain the rise in health care costs through its embrace of managed care. Nonetheless, by society\u27s continued enforcement of standards of care through the imposition of malpractice liability on physicians and other providers, it has also revealed the level below which it does not want-and will not tolerate-health care quality to fall. Though critics can debate whether custom-based standards of care make sense and whether a tort regime is effective, no reason exists to exempt MCOs-the decisions of which affect patient care levelsfrom adhering to them while enforcing them against physicians and other providers. Tort liability forces MCOs to respect those levels as they work to make health care more efficient and will not lead to unreasonable increases in malpractice litigation and health insurance costs. Part V reflects the recent trends in state legislation to address accountability and liability of HMOs. Part VI explains the Texas tortbased approach to MCO accountability for medical determinations, discussing the THCLA and its evaluation in Corporate Health. Part VII concludes the paper with a call for Congress to enact legislation or amend ERISA so that states can unreservedly enforce medical negligence standards against MCOs. While courts have narrowed the extent of ERISA\u27s preemption of state law, federal and state decisions on ERISA\u27s implication for state MCO tort liability are inconsistent. Undoubtedly, the resulting uncertainty makes some state legislatures wary of imposing malpractice liability on MCOs. Clarification from Congress would likely embolden mores states to follow Texas\u27 lead
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