Results 251 to 260 of about 781,216 (295)

Hue selectivity from recurrent circuitry inDrosophila

2023
A universal principle of sensory perception is the progressive transformation of sensory information from broad non-specific signals to stimulus-selective signals that form the basis of perception. To perceive color, our brains must transform the wavelengths of light reflected off objects into the derived quantities of brightness, saturation and hue ...
Matthias P Christenson, Álvaro Sanz Díez, Sarah L Heath, Maia Saavedra-Weisenhaus, Atsuko Adachi, L.F. Abbott, Rudy Behnia   +6 more
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General Recurrent Selection Systems

1988
In Chapter 3, we defined a complete cycle of selection (Fig. 3.2) and developed simple recurrent selection (SRS) starting with a basic breeding system of simple mass selection in which seed is collected from the individuals judged best by their field performance In this chapter, we consider more elaborate breeding systems with primary focus on the ...
Gene Namkoong, Hyun Chung Kang, Jean Sébastien Brouard   +2 more
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Selective Recurrent Neural Network

Neural Processing Letters, 2012
It is known that recurrent neural networks may have difficulties remembering data over long time lags. To overcome this problem, we propose an extended architecture of recurrent neural networks, which is able to deal with long time lags between relevant input signals.
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Two-locus inbreeding measures for recurrent selection

Theoretical and Applied Genetics, 1977
For a population undergoing recurrent selection, a method is presented for determining the average inbreeding coefficients at the end of each breeding cycle. The coefficients are derived in terms of probability measures that genes are identical by descent.
S C, Choy, B S, Weir
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Is Selective Therapy of Recurrent Nephrolithiasis Possible?

Journal of Urology, 1981
We evaluated, in 128 patients with recurrent nephrolithiasis, the efficacy of special treatment programs for some of the common causes of nephrolithiasis, chosen on the basis of their ability to correct underlying physicochemical and physiologic derangements.
C Y, Pak, P, Peters, G, Hurt, M, Kadesky, M, Fine, D, Reisman, F, Splann, C, Caramela, A, Freeman, F, Britton, K, Sakhaee, N A, Breslau   +11 more
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Breast Reconstruction—Selection, Timing, and Local Recurrence

Annals of Plastic Surgery, 1983
Although reconstruction is now a standard part of the care of breast cancer patients, certain unresolved issues surround local recurrence. A percentage of women can be expected to develop local recurrence after mastectomy, whether or not they have reconstruction.
R V, Dowden, J M, Blanchard, R L, Greenstreet   +2 more
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Basic Concepts in Recurrent Selection

1988
In Chapter 1, we briefly discussed the difference between agricultural crop breeding and forest tree breeding. We presented the need to broaden the concept of tree breeding to include the ability to handle a multiplicity of objectives and environments. We also discussed mechanisms of natural selection, and concepts of gene expression and environmental ...
Gene Namkoong, Hyun Chung Kang, Jean Sébastien Brouard   +2 more
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Recurrent selection of tropical tree crops

Euphytica, 1997
The recurrent selection schemes recommended by CIRAD for 6 tropical tree crops are presented and compared. Breeding programmes are carried out under cooperation between CIRAD and its partners in regions where the crops are grown. The crops are cacao, coffee, rubber tree, oil palm, coconut and eucalyptus.
Baudouin, Luc, Baril, C., Clément-Demange, André, Leroy, Thierry, Paulin, Didier   +4 more
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Phenotypic recurrent selection in artichoke breeding

Acta Horticulturae, 2016
The phenotypic recurrent selection aims to increase the favourable allelic frequency during successive selection cycles, which may result in an open-pollinated cultivar. Therefore, the purpose of this work was to obtain an artichoke population improved for traits related with head quality as well as to estimate the genetic gains for quantitative traits
A. Reolon-Costa, M.F. Grando, V.P. Cravero   +2 more
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Strategies of Marker‐Aided Recurrent Selection

Crop Science, 1998
The choice of a marker‐aided recurrent selection (MARS) strategy depends on a number of factors. An experimental comparison of these factors can be costly or infeasible, but a theoretical comparison can provide some guidelines. This study was conducted to evaluate the genetic aspects of expected responses to various MARS methods and to compare the ...
Chongqing Xie, Shizhong Xu
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