Results 141 to 150 of about 487,215 (333)
Advanced Intelligent Systems, EarlyView.A statistical and machine learning‐assisted surface‐enhanced Raman scattering (SERS) framework is developed for label‐free quantification of low‐abundance analytes, including proteins. Combining digital SERS event counting with binomial regression and an artificial neural network (ANN) trained on full spectra, the approach achieves picomolar detection ...
Eni Kume, James Rice
wiley +1 more source
Revista Criminalidad, 2019 Según información procedente del observatorio del delito de la Policía Nacional de Colombia, los hurtos a personas y de celulares han presentado una tendencia al alza desde el año 2003 (Norza, Peñalosa y Rodríguez, 2017).
Nelson Ricardo López-Herrera +2 more
doaj
spatial modeling of summer precipitation in North-west of Iran [PDF]
تحقیقات کاربردی علوم جغرافیایی, 2018 In the present study, the main aim was the spatial evaluation summer rainfall of northwest of Iran based on30 stations in northwest of Iran during 30 years of statistical period (1985-2014).
hossein asakereh, robab razmi
doaj
Rank-1/2: A Simple Way to Improve the OLS Estimation of Tail Exponents [PDF]
Despite the availability of more sophisticated methods, a popular way to estimate a Pareto exponent is still to run an OLS regression: log(Rank)=a-b log(Size), and take b as an estimate of the Pareto exponent.
Rustam Ibragimov, Xavier Gabaix
core
American Journal of Agricultural Economics, EarlyView.Abstract While multiple factors explain low adoption rates of improved varieties by small‐scale farmers in sub‐Saharan Africa, a key supply‐side constraint is the limited availability of seed embodying new traits in the volume, quality, price, and timeliness required by farmers. This constraint is partly attributable to classical failures in the market
Dawit Mekonnen +5 more
wiley +1 more source
Food inflation pass‐through from agricultural imports in a small open economy
American Journal of Agricultural Economics, EarlyView.Abstract This paper develops a new framework for quantifying cost pass‐through in a small open economy by estimating firm‐level markup responses to agricultural import price shocks. We show theoretically that markup adjustments depend on firms' reliance on imported inputs and demand curvature, generating heterogeneous inflationary effects across firm ...
Minseong Kang, Seungki Lee
wiley +1 more source
Short run and long run dynamics of residential electricity consumption: Homogeneous and heterogeneous panel estimations for OECD [PDF]
The purpose of this paper is to reveal the short run and long run dynamics of residential electricity consumption for 11 OECD countries within annual period 1979-2006.
Bilgili, Faik +2 more
core +1 more source
American Journal of Agricultural Economics, EarlyView.Abstract Large‐scale land reforms constitute a substantial redistribution of wealth and reallocation of agricultural land, which is a major form of asset and production input in developing countries. While land redistribution (from the rich to the poor) remains a highly controversial issue, extensive evidence on its effect is limited.
Devashish Mitra +3 more
wiley +1 more source
EQANowadays with the climate change the environmental degradation has became the crucial issue in the World. This study empirically investigates the impact of agriculture value-added, forest area, and renewable energy on CO2 emissions in GUAM union ...
Elcin Vaqif Nesirov +2 more
doaj +1 more source
School facilities and student achievements: evidence from the Timss [PDF]
This paper studies the link between school facilities and student achievements in eight countries using data from the TIMSS 2003 database. OLS and propensity score matching is used to control for observable characteristics.
Arnt Ove Hopland
core