نتایج جستجو برای: rill indicator 567 tonha

تعداد نتایج: 77548  

2000
B. Y. Liu M. A. Nearing P. J. Shi Z. W. Jia

cients. Normalizing to a unit plot of length 22.13 m, both the USLE and RUSLE use the equation Empirical soil erosion models continue to play an important role in soil conservation planning and environmental evaluations around L 5 (l/22.13) [2] the world. The effect of hillslope length on soil loss, often termed the where L is soil loss normalized to the 22.13-m-long slope length factor, is one...

2015
Nicholas Schwab

Previous work by Tesser (1993) and Bourgeois (2002) found that heritable attitudes are more resistant to social influence and attitude change. The present study sought to replicate and extend previous work by utilizing attitudes and heritability estimates not previously used in studies examining the effect of heritable attitudes on social influence processes. It was hypothesized that attitudesw...

1999
Uwe Deichmann

Poverty analysis is often based on national level indicators that are compared over time or across countries. The broad trends that can be identified using aggregate information are useful for evaluating and monitoring the overall performance of a country. For many policy and research applications, however, the information that can be extracted from aggregate indicators is not sufficient. Resea...

2008
Frederic S. Mishkin Arturo Estrella S. Mishkin

This paper examines the out-of-sample performance of various financial variables as predictors of U.S. recessions. Series such as interest rates and spreads, stock prices, and monetary aggregates are evaluated individually and in comparison with other financial and nonfinancial indicators. The analysis focuses on out-of-sample performance from one to eight quarters ahead. Results show that stoc...

2015
Alin Marius Andrieş Bogdan Căpraru

In this paper, we investigate competition in banking systems in the EU27 as a whole for the period 2004– 2010, but also for old members’ banking systems compared with new members’ banking systems and for banking systems from countries member of euro zone compares with banking systems from countries non-member of euro zone. In order to investigate this issue, we estimate a non-structural indicat...

2016
Eyal Seidemann Yuzhi Chen Yoon Bai Spencer C Chen Preeti Mehta Bridget L Kajs Wilson S Geisler Boris V Zemelman

Understanding the neural basis of behaviour requires studying brain activity in behaving subjects using complementary techniques that measure neural responses at multiple spatial scales, and developing computational tools for understanding the mapping between these measurements. Here we report the first results of widefield imaging of genetically encoded calcium indicator (GCaMP6f) signals from...

Journal: :J. Informetrics 2017
Giacomo Vaccario Matus Medo Nicolas Wider Manuel Sebastian Mariani

It is widely recognized that citation counts for papers from different fields cannot be directly compared because different scientific fields adopt different citation practices. Citation counts are also strongly biased by paper age since older papers had more time to attract citations. Various procedures aim at suppressing these biases and give rise to new normalized indicators, such as the rel...

Journal: :Neuron 2016
Eftychios A. Pnevmatikakis Daniel Soudry Yuanjun Gao Timothy A. Machado Josh Merel David Pfau Thomas Reardon Yu Mu Clay Lacefield Weijian Yang Misha Ahrens Randy Bruno Thomas M. Jessell Darcy S. Peterka Rafael Yuste Liam Paninski

We present a modular approach for analyzing calcium imaging recordings of large neuronal ensembles. Our goal is to simultaneously identify the locations of the neurons, demix spatially overlapping components, and denoise and deconvolve the spiking activity from the slow dynamics of the calcium indicator. Our approach relies on a constrained nonnegative matrix factorization that expresses the sp...

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