Results 101 to 110 of about 3,864,284 (197)

Single Equation Instrumental Variable Models: Identification under discrete variation. [PDF]

open access: yes
Over the last decade, substantial interest in theoretical econometrics and microeconometrics has been directed towards nonparametric models. Much work has been devoted to the development of novel identification and estimation technieques and in ...
SMOLINSKI, Konrad
core  

A three color photometric study of the intrinsic variable star HR5329 (K Bootis A)

open access: yes, 1975
The thesis' primary function was the period determination of k Bootis, and S Scuti Variable, through long time-base UBV photoelectric photometry. Data was analyzed using Barning's method, a Fourier technique in searching for the primary and beat periods ...
Warner, A. Carl
core  

CASSIOPEIA D4.3 - case study 3 report: hub connectivity-driven variable aircraft speeds [PDF]

open access: yes, 2013
This document reports on how the CASSIOPEIA agent-based model has been developed, through a case study, to explore the use of dynamic cost indexing on flights arriving at a major European hub airport.
Martín, J.   +3 more
core  

Study of fractional variable-order lymphatic filariasis infection model

open access: yesOpen Physics
Variable-order derivatives are the natural extension of ordinary as well as of fractional-order differentiations and integration, respectively. Numerous suggestions for fractional variable-order operators have been made in the literature over time ...
Jeelani Mdi Begum   +3 more
doaj   +1 more source

MOVING FROM UNIFORM TO VARIABLE FERTILIZER RATES ON IOWA CORN: EFFECTS ON RATES AND RETURNS

open access: yes
This study develops a model based on the yield potential of various soil types in 12 Iowa counties to estimate the potential value of switching from uniform to variable fertilizer rates.
Babcock, Bruce A., Pautsch, Gregory R.
core  

Using Spatial Analysis to Study the Values of Variable Rate Technology and Information

open access: yes
We present a review of the last few years' literature on the economic feasibility of variable rate technology in agriculture. Much of the research on this topic has involved the estimation of site-specific yield response functions.
Bullock, David S.   +1 more
core  

Variable finals in proto-Sino-Tibetan

open access: yes, 2010
This paper concentrates on variable finals, and argues that just as we find a certain amount of both rule-governed and non-rule governed variation in modern languages, in reconstructing Proto-Sino-Tibetan we should recognize the possibility of these ...
LaPolla, Randy J.
core  

The Variable-Rate Input Application Decision for Multiple Inputs with Interactions

open access: yes
Research has evaluated the relative profitability of variable-rate (VRT) versus uniform-rate (URT) application of a single input in fields with multiple management zones.
Roberts, Roland K.   +2 more
core  

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