304 research outputs found
Ghana's labor market (1987-92)
Using the household survey and other data sources, the authors analyze returns to education and other aspects of Ghana's labor market profile from 1987 to 1991. The labor force grew slower than the population did between 1980 and 1990, but the supply of labor is expected to increase as the population of youth is expected to grow faster from 1990 to 2000. And labor force participation rates for 26- to 45-year-olds have been increasing rapidly. Over time, the average labor force participation rates of women have become equal to men's; that of children younger than 15 has remained unchanged at 38 percent. More than half of Ghana's child laborers are employed in agriculture. The formal sector's share of employment is on the decline, while the private informal sector's share has increased, especially in urban areas. Over time, the informal sector (in which most workers have a primary education or less) has absorbed more labor than the formal sector (in which most workers have middle or secondary schooling). Unemployment is pervasive in urban areas, and is less visible in rural areas. Labor productivity may not have increased and is possibly declining. Between 1987 and 1992, there was reverse migration, with many people moving from urban to rural areas, mostly for family reasons. Employment-related migration has also been on the increase. As is true elsewhere, the level of education affects participation in the labor force. Literacy rates for women are lower than those for men, which is one reason men dominate the private formal sector. The rate of return to education increases with higher education and work experience. The return for each additional year of schooling rangesfrom 4 percent to 6 percent in Ghana, quite high for a Sub-Saharan African country. Private and social returns to education are greater for primary than for secondary or postsecondary education.Public Health Promotion,Health Economics&Finance,Health Monitoring&Evaluation,Labor Policies,Environmental Economics&Policies,Health Monitoring&Evaluation,Environmental Economics&Policies,Health Economics&Finance,Labor Standards,Poverty Assessment
Effect of Solid State Diffusion on Microsegregation in Steels
Title: Effect of Solid State Diffusion on Microsegregation in Steels, Author: Dipak B. Moharil, Location: ThodeControlled solidification of Fe-2wt% Ni binary and Fe-2 wt% Ni-Xwt%C ternary alloys was carried out in a travelling furnace. Metallographic studies were used to observe the effect of carbon on the morphology of growth. Electron probe microanalysis was carried out to obtain
quantitative results on the microsegregation of Ni in the binary and ternary alloys. The extent of homogenization of Ni, occurring both during and after solidification was quantitatively estimated.ThesisMaster of Engineering (ME
Malaysian labor markets under structural adjustment
Malaysia's sustained growth in the 1970s was boosted by windfall gains during two oil price hikes plus a commodity boom. Oil and commodity prices fell in the 1980s and Malaysia, an oil exporter, bungled into a rather severe depression in 1985-86. But it recovered quickly, to the surprise of some - and growth resumed in 1987. The events that led to the recession and quick turnaround are a Southeast Asia prototype. The author analyzes the key relationships in this cyclical behavior. He then focuses on long-term labor market issues of interest during the economy's 20-year transformation. It was found that the real exchange rate appreciated because of the inflow of foreign capital to support the government's budget deficit. And the increase in average wages in the period leading up to the recession was not corrected with the rise in the domestic exchange rate in a fully employed economy. Wages increased more than labor productivity did at a time when employment growth had slowed and the rate of unemployment had risen. The author also concluded that rising labor costs were only part of the problem of rising costs before the recession. The whole package of fiscal, monetary, and exchange rate policies - together with the labor market behavior - led to the recession.Banks&Banking Reform,Environmental Economics&Policies,Economic Theory&Research,Economic Stabilization,Markets and Market Access
Bias current dependence of resistivity in Co0.4Fe0.4B0.2 ultrathin film prepared by RF magnetron sputtering
Author Correction: The flying spider-monkey tree fern genome provides insights into fern evolution and arborescence (Nature Plants, (2022), 8, 5, (500-512), 10.1038/s41477-022-01146-6)
Correction to: Nature Plantshttps://doi.org/10.1038/s41477-022-01146-6, published online 9 May 2022. In the version of the article initially published, Dipak Khadka, who collected the samples in Nepal, was thanked in the Acknowledgements instead of being listed as an author. His name and affiliation (GoldenGate International College, Tribhuvan University, Battisputali, Kathmandu, Nepal) have been added to the authorship in the HTML and PDF versions of the article
Assessment of optical transmission and image contrast at infrared wavelengths using tissue simulating phantoms and biological tissues
In vivo fluorescence imaging is an emerging technique with potential for usage in non-invasive cancer screening, surveillance, real-time surgical guidance, and staging. Fluorescence imaging uses the interaction of non-ionizing optical radiation with endogenous fluorophores or fluorescent labels to provide real-time wide-field images of tissue structure and/or functional components. When imaging in vivo, excitation light must travel through overlying tissue to reach the fluorescent target and emitted fluorescence must then propagate back through the overlying tissue in order to be imaged onto a camera. Recently, fluorescent contrast agents have been developed with excitation and emission wavelengths in the near infrared (NIR) spectrum (~700 – 1,000 nm) in order to minimize attenuation and maximize the measured signal from tissue. While several clinical trials have shown the potential benefits of NIR contrast agents over visible fluorophores, there may still be room for improvement by moving to even longer wavelengths. As scattering is reduced as wavelength increases, some researchers are investigating fluorophores that emit in the short-wave infrared (SWIR) wavelength region (~1,000 – 2,300 nm). This study focuses on examining optical transmission and image contrast at NIR wavelengths and SWIR wavelengths to determine which wavelength region may be optimal for development of fluorescent contrast agents. Transmission and contrast measurements were performed on both tissue simulating phantoms and real biological tissues using 780 nm, 980 nm, and 1550 nm wavelengths. From the experiments conducted, it appears that fluorophore emissions should be chosen based on the goals of the specific application. For an application that requires simple detection of signal, near infrared wavelengths will be better as they can be detected with higher signal levels. For an application that focuses on imaging fluorophore-labeled tissues, short-wave infrared wavelengths will be the better option as they provided better image contrastM.S.Includes bibliographical referencesby Khushbu Dipak Pate
Refining The Analysis of Step Rate Tests: A Novel Mathematical Approach Enhancing Fracture Pressure Determination and Surpassing Conventional Uncertainty
Localization and Environment of Tryptophans in Different Structural States of Concanavalin A
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