20,786 research outputs found
The Latino Youth Leadership Alumni
The social issue the LYLA addresses is young minorities, specifically undocumented youth immigrants.https://digitalscholarship.unlv.edu/educ_sys_202/1061/thumbnail.jp
A Study on Rural labor Markets, Rural Nonfarm Enterprises and Agrarian Reform in the Philippines
The Philippine agriculture sector’s limited capacity to absorb the existing rural labor force has led to the demand for nonfarm employment in the rural labor market. Despite its shortcomings, agriculture still remains a vital component to the economy. This paper attempts to bring together and review studies concerning farm and nonfarm linkages, intersectoral linkages and the rural labor markets. It focuses on existing studies analyzing the relationship between farm and nonfarm activities, the nature, structure and composition of nonfarm activities and the linkages of rural nonfarm activities with the other sectors of the economy. On the basis of the survey conducted, research gaps on the area have been identified.labor market, agrarian reform, rural sector, Comprehensive Agrarian Reform Program, rural nonfarm enterprise
Hybrid coastal edges in the Neuquén Basin (Allen Formation, Upper Cretaceous, Argentina)
The Allen Formation records the first Ingression Atlantic to the NeuquĂ©n Basin during the Late Cretaceous. The definition of lithofacies and facies associations interpretation for stratigraphic sections in Paso CĂłrdoba and Salitral Moreno area, RĂo Negro, Argentina allowed to establish the depositional system that characterized this transgression in the northeastern edge of the Basin. In this paper we present sedimentological analysis of conglomeratic, sandstone, heterolithic and pelitic facies, which allowed the interpretation of tidal channels (CM), intertidal flats (PI), tidal flat influenced by storms (PT), subtidal flat (PS) and shoreface deposits (CP) parts of the depositional environment. These deposits represent a sedimentary records preserved example of hybrid systems, in which, the base of the sequence has greater tidal influence, while the upper portion is dominated by wave action. The paleocurrent data indicating a NNW-SSE direction to the shore and correlations and spatial distribution of facies associations propose paleogeographic and paleoenvironmental interpretations to MalargĂĽe Group base. Then in this paper the relationship of this coastal environment presents with wind systems previously defined in this area for the Allen Formation.Fil: Armas, MarĂa Paula. Universidad Nacional de Rio Cuarto. Facultad de Cs.exactas Fisicoquimicas y Naturales. Instituto de Ciencias de la Tierra, Biodiversidad y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Cordoba. Instituto de Ciencias de la Tierra, Biodiversidad y Ambiente.; ArgentinaFil: Sanchez, Maria Lidia. Universidad Nacional de RĂo Cuarto. Facultad de Ciencias Exactas FisicoquĂmicas y Naturales; Argentin
Equisingularity classes of birational projections of normal singularities to a plane
Given a birational normal extension S of a two-dimensional local regular ring
R, we describe all the equisingularity types of the complete ideals J in R
whose blowing-up has some point at which the local ring is analytically
isomorphic to S.
The problem of classifying the germs of such normal surface singularities was
already posed by Spivakovsky (Ann. of Math. 1990). This problem has two parts:
discrete and continous. The continous part is to some extent equivalent to the
problem of the moduli of plane curve singularities, while the main result of
this paper solves completely the discrete part.Comment: 22 pages, 3 figures. To appear in Advances in Mathematic
Quasi-homogeneous black hole thermodynamics
Although the fundamental equations of ordinary thermodynamic systems are
known to correspond to first-degree homogeneous functions, in the case of
non-ordinary systems like black holes the corresponding fundamental equations
are not homogeneous. We present several arguments, indicating that black holes
should be described by means of quasi-homogeneous functions of degree different
from one. In particular, we show that imposing the first-degree condition leads
to contradictory results in thermodynamics and geometrothermodynamics of black
holes. As a consequence, we show that in generalized gravity theories the
coupling constants like the cosmological constant, the Born-Infeld parameter or
the Gauss-Bonnet constant must be considered as thermodynamic variables
How Is Convergent Mobility Consistent with Rising Inequality? A Reconciliation in the Case of Argentina
[Excerpt] This is a paper on earnings mobility in Argentina during the macroeconomic growth and contractions that have characterized that nation’s economy from 1996 to the present. Since 1996, real GDP growth has fluctuated widely. For most of the 1990s, Argentina was seen as a model of successful policymaking. Having pegged its exchange rate to the dollar under a currency board type arrangement in 1991, Argentina had succeeded in ending hyperinflation, reducing inflation rates to single-digit levels. Greater economic stability attracted foreign investment inflows, contributing to an acceleration in economic growth; indeed, even as lenders withdrew their financing in East Asia in 1997, capital inflows continued to Argentina. Then, Argentina entered into a prolonged recession. The combination of the hard peg of the local currency to the U.S. dollar and excessive borrowing led to an unsustainable fiscal situation and, ultimately, to the collapse of the economy at the end of 2001 (See Figure 1). Gross Domestic Product fell by 13.5 percent from the second quarter of 2001 to the second quarter of 2002, and the share of the population in poverty reached 58 percent in October 2002, versus 38 percent in October 2001, according to the official moderate poverty line.
This paper addresses the distributional consequences of these macroeconomic events. (Note: Here and throughout the paper, “distribution of income” means the entire density or cumulative distribution function; it does not mean “inequality.”) Who benefited the most from Argentine economic growth? Who lost the most in economic decline? Are those who started rich getting richer in growth periods and losing more in recessionary periods, or is it the other way around? Are the answers to these questions the same for all measures of initial advantage
Dynamic transition in Landau-Zener-St\"uckelberg interferometry of dissipative systems: the case of the flux qubit
We study Landau-Zener-Stuckelberg (LZS) interferometry in multilevel systems
coupled to an Ohmic quantum bath. We consider the case of superconducting flux
qubits driven by a dc+ac magnetic fields, but our results can apply to other
similar systems. We find a dynamic transition manifested by a symmetry change
in the structure of the LZS interference pattern, plotted as a function of ac
amplitude and dc detuning. The dynamic transition is from a LZS pattern with
nearly symmetric multiphoton resonances to antisymmetric multiphoton resonances
at long times (above the relaxation time). We also show that the presence of a
resonant mode in the quantum bath can impede the dynamic transition when the
resonant frequency is of the order of the qubit gap. Our results are obtained
by a numerical calculation of the finite time and the asymptotic stationary
population of the qubit states, using the Floquet-Markov approach to solve a
realistic model of the flux qubit considering up to 10 energy levels.Comment: One new figure added. Final version to be published in PR
Rhynchomeliola Speg., un viejo género nuevo para Argentina
Al estudiar los micromicetes asociados a plantas nativas de los bosques andinopatagĂłnicos, se coleccionaron ejemplares de dos especies de Rhynchomeliola Speg.: R. lomatiae S. Lee & Joanne E. Taylor creciendo sobre hojas de Lomatia ferruginea (Proteaceae), y R. usteriana (Speg.) Arx & MĂĽller asociado a corteza de Nothofagus pumilio (Nothofagaceae). Rhynchomeliola es un gĂ©nero de posiciĂłn incierta que reĂşne pocas especies, mayormente folĂcolas y tropicales, caracterizadas por poseer ascomas periteciales no estromáticos, de cuellos largos y delgados. En SudamĂ©rica este gĂ©nero solo se conocĂa en Brasil, siendo esta la primera cita del mismo para Argentina. Asimismo este es el primer hallazgo de R. lomatiae desde su descripciĂłn original de material herborizado de Lomatia polymorpha proveniente de Australia. El descubrimiento de R. usteriana sobre corteza representa la primera descripciĂłn de una especie del gĂ©nero sobre un sustrato lignificado, y sustentarĂa el rechazo del hábito como carácter válido para distinguir Rhynchomeliola respecto del gĂ©nero afĂn Rhynchostoma P. Karst. Se proveen descripciones e ilustraciones completas de las especies encontradas, asĂ como de los tipos de las especies descriptas por Spegazzini.During a survey of the micromycetes growing on native plants from the Patagonian Andean forests, two species of Rhynchomeliola Speg. were found: R. lomatiae S. Lee & Joanne E. Taylor growing on leaves of Lomatia ferruginea (Proteaceae), and R. usteriana (Speg.) Arx & MĂĽller growing on bark of Nothofagus pumilio (Nothofagaceae). Rhynchomeliola is a small genus of long-necked, non stromatic, perithecial fungi which comprises nine species that are mostly tropical and foliicolous. In South America this genus was known only from Brazil. Rhynchomeliola lomatiae is recorded for the first time since its original description from herbarium material of Lomatia polymorpha in Australia. The finding of R. usteriana growing on bark is the first record of a Rhynchomeliola species on a lignified substrate and supports the rejection of the habit as a useful character to distinguish the genus from the morphologically akin Rhynchostoma P. Karst. Full descriptions and illustrations of the recorded species are provided along with those of the type materials of the species described by Spegazzini.Fil: Bianchinotti, Maria Virginia. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - BahĂa Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Universidad Nacional del Sur. Departamento de BiologĂa, BioquĂmica y Farmacia; ArgentinaFil: Sanchez, Romina Magali. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; Argentina. Universidad Nacional del Sur. Departamento de BiologĂa, BioquĂmica y Farmacia; ArgentinaFil: Rajchenberg, Mario. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; Argentina. Centro de InvestigaciĂłn y ExtensiĂłn Forestal Andino PatagĂłnico; Argentin
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