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Santo Domingo, Dominican Republic

See also Universidad Santo Tomás de AquinoThe Universidad Autónoma de Santo Domingo is the public university system in the Dominican Republic with its flagship campus in the Ciudad Universitaria of Santo Domingo and with regional campuses in many cities of the Republic. It was reopened and renamed in 1914, replacing the former Universidad Santo Tomás de Aquino, the first university of the Western Hemisphere , which was founded unofficially by a Papal bull in 1538, officially by royal decree in 1558, and closed in 1832.In structure, the school followed the model of the University of Alcalá de Henares. The university organized its offerings into four schools: Medicine, Law, Theology, and the Arts. Today, the University has expanded to eight schools: Humanities, the Arts, Law and Political Science, Health science, Economics and Social science, Science, Engineering and Architecture, and Agricultural science. Wikipedia.

Velev J.P.,University of Puerto Rico at San Juan | Velev J.P.,University of Nebraska - Lincoln | Lopez-Encarnacion J.M.,University of Puerto Rico at San Juan | Lopez-Encarnacion J.M.,Autonomous University of Santo Domingo | And 2 more authors.
Physical Review B - Condensed Matter and Materials Physics | Year: 2012

We perform first-principles calculations based on density functional theory of the spin-resolved conductance of poly(vinylidene fluoride)- (PVDF) based multiferroic tunnel junctions (MFTJs). We consider Co/PVDF/O/Co (0001) MFTJs with one oxidized interface, representing the different experimental growth conditions for the two interfaces. We demonstrate that this natural asymmetry leads to multiple resistance states associated with different magnetization configurations of the electrodes and ferroelectric polarization orientations of the barrier. Our results indicate very high tunability of the tunneling magnetoresistance and electroresistance effects, which could be useful for logic and memory applications. © 2012 American Physical Society. Source

Kohler G.,Senckenberg Forschungsinstitut und Naturmuseum | Bobadilla M.J.R.,Autonomous University of Santo Domingo | Hedges S.B.,Temple University
Zootaxa | Year: 2016

We describe a new species of Leiocephalus from the coastal dunes of Bahía de las Calderas in the southwestern Dominican Republic. In external morphology, Leiocephalus sixtoi sp. nov. is most similar to L. schreibersii and L. inaguae. Leioceph-alus sixtoi differs from L. inaguae in having a U-shaped bony parietal table (vs. V-shaped in L. inaguae), 3 or 4 enlarged postcloacal scales in males (vs. 2 in L. inaguae), most scales on snout posterior to internasal scales rugose to keeled scales (vs. smooth in L. inaguae), and a patternless throat in males, spots on the throat in females (vs. throat with dark streaks and bars in males and females of L. inaguae). Leiocephalus sixtoi differs from L. schreibersii in having the scales of the lateral fold only slightly smaller than adjacent scales (vs. scales of lateral fold distinctly smaller than adjacent scales), hav-ing prominent caudal crest scales in adult males (vs. caudal crest scales of moderate size, even in very large males in L. schreibersii), a pattern of dark gray bars on a grayish brown background in the region above the lateral body fold (vs. dense turquoise blue mottling with heavy suffusion of red pigment in L. schreibersii), a darker dorsal ground color (vs. paler in L. schreibersii), and a red iris in adult males (vs. pale grayish blue in adult male L. schreibersii). Leiocephalus sixtoi differs further from L. schreibersii in several osteological characters as follows: in L. sixtoi the nasal process of the premaxilla reaches to mid-level of the bony external nares (vs. to level of posterior margin of the bony external nares in L. schreiber-sii), lacking a constriction at the base of the nasal process of the premaxilla (vs. such a constriction present in L. schreiber-sii), and having a reduced nasal-prefrontal contact leaving the nasal processes of the frontal bone exposed (vs. nasal and prefrontal bones contact one another, thereby obscuring the nasal processes of the frontal bone in L. schreibersii). We des-ignate SMF 26228, an adult male from Saint Marc, Province Artibonite, Haiti, as the neotype of L. schreibersii. Copyright © 2016 Magnolia Press. Source

Rosenberger A.L.,Brooklyn College | Rosenberger A.L.,City University of New York | Rosenberger A.L.,American Museum of Natural History | Cooke S.B.,City University of New York | And 4 more authors.
Proceedings of the Royal Society B: Biological Sciences | Year: 2011

The nearly pristine remains of Antillothrix bernensis, a capuchin-sized (Cebus) extinct platyrrhine from the Dominican Republic, have been found submerged in an underwater cave. This represents the first specimen of an extinct Caribbean primate with diagnostic craniodental and skeletal parts in association, only the second example of a skull from the region, and one of the most complete specimens of a fossil platyrrhine cranium yet discovered. Cranially, it closely resembles living cebines but is more conservative. Dentally, it is less bunodont and more primitive than Cebus, with crowns resembling Saimiri (squirrel monkeys) and one of the oldest definitive cebines, the late Early Miocene Killikaike blakei from Argentina. The tricuspid second molar also resembles the enigmatic marmosets and tamarins, whose origins continue to present a major gap in knowledge of primate evolution. While the femur is oddly short and stout, the ulna, though more robust, compares well with Cebus. As a member of the cebid clade, Antillothrix demonstrates that insular Caribbean monkeys are not monophyletically related and may not be the product of a single colonizing event. Antillothrix bernensis is an intriguing mosaic whose primitive characters are consistent with an early origin, possibly antedating the assembly of the modern primate fauna in greater Amazonia during the La Venta horizon. While most Greater Antillean primate specimens are quite young geologically, this vanished radiation, known from Cuba (Paralouatta)and Jamaica (Xenothrix) as well as Hispaniola, appears to be composed of long-lived lineages like several other mainland clades. © 2010 The Royal Society. Source

Padilla M.B.,University of Michigan | Reyes A.M.,University of Michigan | Connolly M.,University of Michigan | Natsui S.,Autonomous University of Santo Domingo | And 2 more authors.
Health Policy and Planning | Year: 2012

Background The Caribbean has the highest prevalence rates of HIV/AIDS outside sub-Saharan Africa, and a broad literature suggests an ecological association between tourism areas and sexual vulnerability. Tourism employees have been shown to engage in high rates of sexual risk behaviours. Nevertheless, no large-scale or sustained HIV prevention interventions have been conducted within the tourism industry. Policy barriers and resources are under-studied.Methods In order to identify the policy barriers and resources for HIV prevention in the tourism sector, our research used a participatory approach involving a multisectoral coalition of representatives from the tourism industry, government, public health and civil society in the Dominican Republic. We conducted 39 in-depth semi-structured interviews with policy makers throughout the country focusing on: prior experiences with HIV prevention policies and programmes in the tourism sector; barriers and resources for such policies and programmes; and future priorities and recommendations.Results Findings suggest perceptions among policy makers of barriers related to the mobile nature of tourism employees; the lack of centralized funding; fear of the 'image problem' associated with HIV; and the lack of multisectoral policy dialogue and collaboration. Nevertheless, prior short-term experiences and changing attitudes among some private sector tourism representatives suggest emerging opportunities for policy change.Conclusion We argue that the time is ripe for dialogue across the public-private divide in order to develop regulatory mechanisms, joint responsibilities and centralized funding sources to ensure a sustainable response to the HIV-tourism linkage. Policy priorities should focus on incorporating HIV prevention as a component of occupational health; reinforcing workers' health care rights as guaranteed by existing law; using private sector tourism representatives who support HIV prevention as positive role models for national campaigns; and disseminating a notion of 'investment' in safer tourism environments as a means to positively influence tourist demand. © The Author 2011; all rights reserved. Source

Lopez-Encarnacion J.M.,University of Puerto Rico at San Juan | Lopez-Encarnacion J.M.,Autonomous University of Santo Domingo | Burton J.D.,University of Nebraska - Lincoln | Tsymbal E.Y.,University of Nebraska - Lincoln | And 2 more authors.
Nano Letters | Year: 2011

Organic materials are promising for applications in spintronics due to their long spin-relaxation times in addition to their chemical flexibility and relatively low production costs. Most studies of organic materials for spintronics focus on nonpolar dielectrics or semiconductors, serving as passive elements in spin transport devices. Here, we demonstrate that employing organic ferroelectrics, such as poly(vinylidene fluoride) (PVDF), as barriers in magnetic tunnel junctions (MTJs) allows new functionality in controlling the tunneling spin polarization via the ferroelectric polarization of the barrier. Using first-principles methods based on density functional theory we investigate the spin-resolved conductance of Co/PVDF/Co and Co/PVDF/Fe/Co MTJs as model systems. We show that these tunnel junctions exhibit multiple resistance states associated with different magnetization configurations of the electrodes and ferroelectric polarization orientations of the barrier. Our results indicate that organic ferroelectrics may open a new and promising route in organic spintronics with implications for low-power electronics and nonvolatile data storage. © 2010 American Chemical Society. Source

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