5,291 research outputs found
Argentina's labor markets in an era of adjustment
The current economic crisis in Argentina is only partly the result of inappropriate domestic policies to cope with the recent external shocks. Years of inappropriate policies have damaged Argentina's economy. Even if no external shocks had occurred, the country would still have to change the structure of production. Argentina has had trouble sustaining a program of structural adjustment. Its experiences provide policymakers with some lessons in designing a sustainable program to achieve price stability and change the incentive system : a) macroeconomic and trade policies must be consistent; b) labor relations and labor market institutions must be changed including the decentralization of wage bargaining and the elimination of traditional wage policies and general government intervention; c) rigidities and restrictions on labor mobility must be eliminated, leading to less pervasive government intervention in the form of restrictive regulations and spending patterns; and d) public spending must be profoundly changed to reduce social costs during the transition period.Economic Stabilization,Banks&Banking Reform,Municipal Financial Management,Environmental Economics&Policies,Economic Theory&Research
Altruistic behavior pays, or the importance of fluctuations in evolutionary game theory
Human behavior is one of the main problems for evolution, as it is often the
case that human actions are disadvantageous for the self and advantageous for
other people. Behind this puzzle are our beliefs about rational behavior, based
on game theory. Here we show that by going beyond the standard game-theoretical
conventions, apparently altruistic behavior can be understood as
self-interested. We discuss in detail an example related to the so called
Ultimatum game and illustrate the appearance of altruistic behavior induced by
fluctuations. In addition, we claim that in general settings, fluctuations play
a very relevant role, and we support this claim by considering a completely
different example, namely the Stag-Hunt game.Comment: For the proceedings of the 8th Granada Seminar on Computational
Physics (AIP Proceedeings Series
Cultural (Incompetence), Justice, and Expectations of Care: An Illustration
The health care industry seems prima facie obligated to respond to the demands and expectations of those multicultural communities that make up its stakeholder base. However, as prima facie, this obligation fails to justify âcultural competenceâ amongst health care professionals or the health care industry. Without some justification, one can only assume that cultural competence is a bilateral process requiring multicultural communities themselves to assume the responsibility for their own care. Relying on a Rawlsian conception of justice, I argue against the view that cultural competence is a bilateral process in this case, and that health care professionals in particular and the health care industry in general have an obligation to attain to cultural competence in order to satisfy a fundamental principle of justice, what Rawls calls the âdifference principle.
Palynology of acid-saline lakes of western Australiabiostratigraphy and paleoenvironmental reconstruction
Lakes are excellent repositories of fossils and sedimentary features that provide clues to past climatic and geologic events. Sediments from four cores drilled in Lake Aerodrome (LA1-09, LA2-09) and Lake Brown (LB1-09, LB2-09), two of the hundreds of ephemeral lakes in southern Western Australia, were analyzed for their palynological contents to understand the geologic and climatic evolution of the depositional basin. Palynofacies assemblages defined by statistical analyses of dispersed organic matter suggested differences in the depositional conditions and probable correlations between Lake Aerodrome cores. Detailed identifications and quantification of organic-walled microfossils yielded two palynomorph assemblages that reflect a climatic turnover: (1) a wet hinterland (rainforest), freshwater and swampy assemblage found in situ in the basal lignites of LA2-09 (44.58-59.63 meters); and (2) a sclerophyllic and halophilic assemblage in all younger sediments. The first and last appearances of key palynomorphs in the lignites, which contain Aglaoreidia cyclops (documented for the first time in Australia and the Southern Hemisphere), correlate the assemblage with the Middle Nothofagidites asperus Zone of the Werillup Formation. While Myrtaceidites lipsis constrains the age of the sediments from 23.38 meters depth to the top of LA2-09 as Pliocene to Recent, the sequence between 23.38 and 44.58 meters has long-ranging palynomorphs and is likely not older than the Miocene. Above the lignites, the salt-tolerant alga Dunaliella is used as a proxy for saline conditions. Reworking has been established in post-Eocene sediments because well-preserved Eocene freshwater and marine palynomorphs co-occur with sclerophyllic and halophilic palynomorphs --Abstract, page iii
Management System for Harvest Scheduling: The Case of Horticultural Production in Southeast Spain
horticultural farmer, optimization, planning, mathematical programming, marketing, cooperative, Agribusiness, Crop Production/Industries, Demand and Price Analysis, Farm Management, Land Economics/Use,
Infant mortality rates and pneumococcal vaccines: a time-series trend analysis in 194 countries, 1950â2020
Pneumonia due to Streptococcus pneumoniae
(pneumococcus) is a major cause of mortality in infants
(children under 1 year of age), and pneumococcal
conjugate vaccines (PCVs), delivered during the first year
of life, are available since the year 2000. Given those two
premises, the conclusion follows logically that favourable
impact reported for PCVs in preventing pneumococcal
disease should be reflected in the infant mortality rates
(IMRs) from all causes. Using publicly available datasets,
country-level IMR estimates from UNICEF and PCV
introduction status from WHO, country-specific time series
analysed the temporal relationship between annual IMRs
and the introduction of PCVs, providing a unique context
into the long-term secular trends of IMRs in countries
that included and countries that did not include PCVs in
their national immunisation programmes. PCV status was
available for 194 countries during the period 1950â2020:
150 (77.3%) of these countries achieved nationwide PCV
coverage at some point after the year 2000, 13 (6.7%)
achieved only partial or temporary PCV coverage, and 31
(15.9%) never introduced PCVs to their population. One
hundred and thirty-nine (92.7%) of countries that reported
a decreasing (negative) trend in IMR, also reported a
strong correlation with decreasing maternal mortality
rates (MMRs), suggesting an improvement in overall child/
mother healthcare. Conversely, all but one of the countries
that never introduced PCVs in their national immunisation
programme also reported a decreasing trend in IMR that
strongly correlates with MMRs. IMRs have been decreasing
for decades all over the world, but this latest decrease may
not be related to PCVs
Infant mortality rates and pneumococcal vaccines: a time-series trend analysis in 194 countries, 1950â2020
Pneumonia due to Streptococcus pneumoniae
(pneumococcus) is a major cause of mortality in infants
(children under 1 year of age), and pneumococcal
conjugate vaccines (PCVs), delivered during the first year
of life, are available since the year 2000. Given those two
premises, the conclusion follows logically that favourable
impact reported for PCVs in preventing pneumococcal
disease should be reflected in the infant mortality rates
(IMRs) from all causes. Using publicly available datasets,
country-level IMR estimates from UNICEF and PCV
introduction status from WHO, country-specific time series
analysed the temporal relationship between annual IMRs
and the introduction of PCVs, providing a unique context
into the long-term secular trends of IMRs in countries
that included and countries that did not include PCVs in
their national immunisation programmes. PCV status was
available for 194 countries during the period 1950â2020:
150 (77.3%) of these countries achieved nationwide PCV
coverage at some point after the year 2000, 13 (6.7%)
achieved only partial or temporary PCV coverage, and 31
(15.9%) never introduced PCVs to their population. One
hundred and thirty-nine (92.7%) of countries that reported
a decreasing (negative) trend in IMR, also reported a
strong correlation with decreasing maternal mortality
rates (MMRs), suggesting an improvement in overall child/
mother healthcare. Conversely, all but one of the countries
that never introduced PCVs in their national immunisation
programme also reported a decreasing trend in IMR that
strongly correlates with MMRs. IMRs have been decreasing
for decades all over the world, but this latest decrease may
not be related to PCVs
Power system stability of a small sized isolated network supplied by a combined wind-pumped storage generation system: a case study in the Canary Islands
Massive integration of renewable energy sources in electrical power systems of remote islands is a subject of current interest. The increasing cost of fossil fuels, transport costs to isolated sites and environmental concerns constitute a serious drawback to the use of conventional fossil fuel plants. In a weak electrical grid, as it is typical on an island, if a large amount of conventional generation is substituted by renewable energy sources, power system safety and stability can be compromised, in the case of large grid disturbances. In this work, a model for transient stability analysis of an isolated electrical grid exclusively fed from a combination of renewable energy sources has been studied. This new generation model will be installed in El Hierro Island, in Spain. Additionally, an operation strategy to coordinate the generation units (wind, hydro) is also established. Attention is given to the assessment of inertial energy and reactive current to guarantee power system stability against large disturbances. The effectiveness of the proposed strategy is shown by means of simulation results
Using FRITIOF to Model Nucleus-Nucleus Interactions in a Cosmic Ray Detector
Ascintillating optical fiber calorimeter (SOFCAL) isbeing developed by NASA/Marshall Space Flight Center for use in experiments to study the spectrum of high-energy cosmic rays and gamma rays from 100 GeV to 1,000 TeV. SOFCAL willnot saturate for long exposures and this calorimeter inthese balloon-borne emulsion chambers willbe helpful for the study of the composition of primary cosmic-ray nuclei. For primary nuclei with energies much greater than 1014 eV, nucleus-nucleus interactions are likely to exhibit characteristics of a quark-gluon plasma (QGP). Aparticle event generator was used tomodel the collision of a cosmic-ray nucleus with a target nucleus inan emulsion chamber. FRITIOF withLUCIAE was chosen tomodel collisions of primary cosmic rays inan emulsion chamber with SOFCAL. Pseudo-rapidity distributions were computed for protons on lead at 200 GeV/c and compared with experimental data. Pseudo-rapidity distributions were computed for protons or iron incident on a carbon or silver nucleus. For gamma-rays from nucleus-nucleus interactions, the total energy of the electromagnetic component ZÂŁy was computed. The partial coefficient ofinelasticity kr defined by LÂŁ y = kY E0 ,was computed from the primary energy Eo of the cosmic rays. The f(ky )-distributions were computed and compared with existing calorimeter data. Funding was provided by the NASA/University Joint Venture (JOVE) Program
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