Results 91 to 100 of about 1,130,227 (299)

USE OF PESTICIDES ON TOMATO IN THE STATE OF GOIÁS, BRAZIL OS AGROTÓXICOS NA PRODUÇÃO DE TOMATE DE MESA NA REGIÃO DE GOIANÁPOLIS, GOIÁS

open access: yesPesquisa Agropecuária Tropical, 2009
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Paulo Marçal Fernandes   +2 more
doaj   +1 more source

Deconstructing gravity: trade costs and extensive and intensive margins [PDF]

open access: yesCanadian Journal of Economics/Revue canadienne d'économique, 2010
Abstract This paper uses data on US exports to decompose exports into the number of exporting firms (the extensive margin) and average export sales (the intensive margin). We show how a range of proxies for trade costs has different impacts on the two margins.
openaire   +4 more sources

Longitudinal Changes in Adiposity After a Youth Sport‐Related Knee Injury: Informing Posttraumatic Osteoarthritis Prevention

open access: yesArthritis Care &Research, EarlyView.
Objective Youth who experience a sport‐related knee injury have elevated odds of becoming overweight or developing obesity in 3 to 10 years, compounding their risk for posttraumatic osteoarthritis (PTOA). To inform prevention strategies, this study compared patterns of adiposity change between youth with a sport‐related knee injury and uninjured youth ...
Justin M. Losciale   +6 more
wiley   +1 more source

Export Product Quality and Export Volume Growth: Evidence From China

open access: yesSAGE Open
Despite the broad recognition that enhancing export product quality is critical for sustaining export competitiveness, its specific impact on firm-level export growth remains underexplored.
Chang Qing Lin, Wen Xin Huang
doaj   +1 more source

Environmental policies, firm entry and exit, and pollution emissions: quantifying the extensive margin in a new Keynesian E-DSGE model

open access: yesFrontiers in Environmental Science
We quantify the extensive margin of environmental policy—the component of aggregate emissions driven by changes in the number of active firms—in a New Keynesian E-DSGE model with endogenous firm entry, nominal rigidities, and a stock pollutant, estimated
Tian Wu, Ren Wang
doaj   +1 more source

A formal decomposition of declining youth crime in Denmark

open access: yesDemographic Research, 2016
Background: Over the recent decades and across most developed democracies, youth crime has been in steady decline, and declining youth crime now constitutes an important contemporary demographic change.
Lars H. Andersen   +2 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

An Intensive Exploration of Technology Diffusion [PDF]

open access: yes
We present a tractable model for the analysis of the relationship between economic growth and the intensive and extensive margins of technology adoption. At the aggregate level, our model is isomorphic to a neoclassical growth model.
Martí Mestieri, Diego A. Comin
core  

Effect of Milk Yield on Economic Profitability of Holstein Friesian Cows under Intensive Production System in Egypt [PDF]

open access: yesPakistan Veterinary Journal, 2013
Data of productive and reproductive traits of 1961 of lactation records were obtained from 763 Dutch Friesian cows grew up at Wadi El-Sharkia farm, El-Salheia, Egypt.
H. G. El-Awady
doaj  

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

open access: yesAdvanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice   +2 more
wiley   +1 more source

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