80 research outputs found

    U.S.-Mexican migration cooperation: obstacles and opportunities

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    This chapter begins by briefly reviewing theoretical issues regarding opportunities for migration cooperation. Immigration is an inherently multidimensional issue and differs from trade and other aspects of the bilateral relationship because of Mexico's unique ability to influence policy outcomes. Thus, simple asymmetric bargaining models are of limited utility for examining joint migration policy-making, and it is necessary instead to consider specific migration preferences in each country as well as the context in which migration negotiations occur. The remainder of the chapter therefore reviews the history of U.S. and Mexican preferences over migration policy, changes in the broader bilateral relationship, and the evolution of bilateral conflict and cooperation on migration policy. A final section evaluates contemporary preferences and context to identify obstacles and opportunities for migration cooperation at this time.Emigration and immigration ; Mexico

    The Politics of Katrina in New Orleans: A View From Ground Zero

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    What is New Orleans like today? What will it take to return the city to some semblance of normalcy? Stunned by the events and revelations of governmental incompetence since Katrina, we review Katrina\u27s aftermath and chime in on current policy debates about the city’s future. Our love for New Orleans may compromise our objectivity, but we find scholarly inspiration in three excellent articles in the last issue of The Forum

    Oligodendroglial neoplasms with ganglioglioma-like maturation: a diagnostic pitfall

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    Although oligodendroglial neoplasms are traditionally considered purely glial, increasing evidence suggests that they are capable of neuronal or neurocytic differentiation. Nevertheless, ganglioglioma-like foci (GGLF) have not been previously described. Herein, we report seven examples where the primary differential diagnosis was a ganglioglioma with an oligodendroglial component. These five male and two female patients ranged in age from 29 to 63 (median 44) years at initial presentation and neuroimaging features were those of diffuse gliomas in general. At presentation, the glial component was oligodendroglioma in six and oligoastrocytoma in one; one was low-grade and six were anaplastic. A sharp demarcation from adjacent GGLF was common, although some intermingling was always present. The GGLF included enlarged dysmorphic and occasionally binucleate ganglion cells, Nissl substance, expression of neuronal antigens, GFAP-positive astrocytic elements, and low Ki-67 labeling indices. In contrast to classic ganglioglioma, however, cases lacked eosinophilic granular bodies and CD34-positive tumor cells. Scattered bizarre astrocytes were also common and one case had focal neurocytic differentiation. By FISH analysis, five cases showed 1p/19q codeletion. In the four cases with deletions and ample dysmorphic ganglion cells for analysis, the deletions were found in both components. At last follow-up, two patients suffered recurrences, one developed radiation necrosis mimicking recurrence, and one died of disease 7.5 years after initial surgery. We conclude that GGLF represents yet another form of neuronal differentiation in oligodendroglial neoplasms. Recognition of this pattern will prevent a misdiagnosis of ganglioglioma with its potential for under-treatment

    Immunity of human epithelial ovarian carcinoma: the paradigm of immune suppression in cancer

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    Unaccompanied Child Migration to the United States: The Tension between Protection and Prevention

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    Between 2011 and 2014 the number of Central American children and "family units" arriving at the US-Mexico border grew rapidly, reaching a peak of 137,000 in fiscal year 2014. While many of these migrants have valid claims for political asylum or other forms of humanitarian relief, others are primarily motivated by economic concerns and a desire to reconnect with family members-- constituting a complex, mixed flow that has challenged the capacity of the United States to respond. This report makes recommendations on policies that advance both critical protection and enforcement goals in situations of complex, mixed flows. It explains the shifting pattern of Central American migration between 2011 and 2014, analyzes why inflows during this period prompted a particularly acute policy challenge, and outlines the U.S. and regional policy responses put into place to address the crisis. The report concludes with recommendations on additional policies that the United States, Mexico, and the Northern Triangle countries of El Salvador; Guatemala, and Honduras might adopt to better manage child and family migration pressures today and in the future
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