Results 341 to 350 of about 5,532,760 (378)
Some of the next articles are maybe not open access.

A manual for the practical study of root-nodule bacteria

, 1971
A manual for the practical study of root-nodule bacteria , A manual for the practical study of root-nodule bacteria , مرکز فناوری اطلاعات و اطلاع رسانی ...
J. Vincent
semanticscholar   +1 more source

The role of root exudates in rhizosphere interactions with plants and other organisms.

Annual Review of Plant Biology, 2006
The rhizosphere encompasses the millimeters of soil surrounding a plant root where complex biological and ecological processes occur. This review describes recent advances in elucidating the role of root exudates in interactions between plant roots and ...
H. Bais   +4 more
semanticscholar   +1 more source

Root cap and root growth

Planta, 1972
The caps of the roots of Zea mays (var. Kelvedon 33) are the source of a growth inhibitor system which also acts on the root elongation of Lens culinaris.
openaire   +3 more sources

Getting to the Root of a Root Problem

Science Signaling, 2014
Nitrogen-starved rootlets send small peptides to the shoot to initiate compensatory uptake in other rootlets.
openaire   +3 more sources

Unit Roots [PDF]

open access: possible, 2008
Nonstationarity is certainly one of the most dominant and enduring characteristics of macroeconomic and financial time series. It therefore seems appropriate that this feature of the data be seriously addressed both in econometric methodology and in empirical practice. However, until recently this has not been the case.
openaire   +1 more source

Some distance properties of latent root and vector methods used in multivariate analysis

, 1966
SUMMARY This paper is concerned with the representation of a multivariate sample of size n as points P1, P2, ..., PI in a Euclidean space. The interpretation of the distance A(Pi, Pj) between the ith andjth members of the sample is discussed for some ...
J. Gower
semanticscholar   +1 more source

Rooting for Continental Roots

Science News, 1986
A t one time, scientists thought that mountains and valleys arise because the earth is shrinking; all the wrinkles, folds, faults and other deformations in the planet's crust were likened to the crinkly skin of a drying apple. Then came the theory of plate tectonics, which revolutionized the earth sciences and gave researchers a more tenable framework ...
openaire   +2 more sources

Root Mean Square Layer Normalization

Neural Information Processing Systems, 2019
Layer normalization (LayerNorm) has been successfully applied to various deep neural networks to help stabilize training and boost model convergence because of its capability in handling re-centering and re-scaling of both inputs and weight matrix ...
Biao Zhang, Rico Sennrich
semanticscholar   +1 more source

Decomposition of Root Tips, Fine Roots, and Coarse Roots

2020
Decomposition of fine-root litter is much less studied than that of foliar litter although fine root litter is a major contributor to litter input to the forest soil. This chapter is devoted to decomposition of root tips and fine roots. Root litter decomposition may be studied using litter bags, through following remaining root mass in soil cores, or ...
Charles McClaugherty, Björn Berg
openaire   +2 more sources

Time series regression with a unit root

, 1987
This paper studies the random walk in a general time series setting that allows for weakly dependent and heterogeneously distributed innovations. It is shown that simple least squares regression consistently estimates a unit root under very general ...
P. Phillips
semanticscholar   +1 more source

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