Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Robert E. Schaffer"'
Autor:
Barbara Hufnagel, Karine C. Bernardino, Marcos Malosetti, Sylvia M. Sousa, Lidianne A. Silva, Claudia Teixeira Guimaraes, Antônio Marcos Coelho, Thiago Teixeira Santos, Joao H. M. Viana, Robert E. Schaffert, Leon V. Kochian, Fred A. Eeuwijk, Jurandir V. Magalhaes
Publikováno v:
BMC Plant Biology, Vol 24, Iss 1, Pp 1-18 (2024)
Abstract Background On tropical regions, phosphorus (P) fixation onto aluminum and iron oxides in soil clays restricts P diffusion from the soil to the root surface, limiting crop yields. While increased root surface area favors P uptake under low-P
Externí odkaz:
https://doaj.org/article/9a770787282f4f088d6f17b9060ac609
Autor:
Karine C. Bernardino, Maria Marta Pastina, Cícero B. Menezes, Sylvia M. de Sousa, Laiane S. Maciel, Geraldo Carvalho Jr, Claudia T. Guimarães, Beatriz A. Barros, Luciano da Costa e Silva, Pedro C. S. Carneiro, Robert E. Schaffert, Leon V. Kochian, Jurandir V. Magalhaes
Publikováno v:
BMC Plant Biology, Vol 19, Iss 1, Pp 1-15 (2019)
Abstract Background Phosphorus (P) fixation on aluminum (Al) and iron (Fe) oxides in soil clays restricts P availability for crops cultivated on highly weathered tropical soils, which are common in developing countries. Hence, P deficiency becomes a
Externí odkaz:
https://doaj.org/article/c9263abe12194c87bafd4c0c5a5e0f41
Autor:
Barbara Hufnagel, Claudia T. Guimaraes, Eric J. Craft, Jon E. Shaff, Robert E. Schaffert, Leon V. Kochian, Jurandir V. Magalhaes
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-13 (2018)
Abstract Root damage due to aluminum (Al) toxicity restricts crop production on acidic soils, which are extensive in the tropics. The sorghum root Al-activated citrate transporter, SbMATE, underlies the Al tolerance locus, Alt SB , and increases grai
Externí odkaz:
https://doaj.org/article/cf15140f4cef42f3b2dff8f39945f6a3
Autor:
J C Doyle, G.M Zeitlin, Charles D. Yingling, Enoch Callaway, Alan Gevins, Robert E. Schaffer, Charles L. Yeager
Publikováno v:
Science. 203:665-668
By means of two-stage, nonlinear multivariate pattern recognition, electroencephalograms (EEG's) were analyzed during performance of verbal and spatial tasks. Complex scalp distributions of theta-, beta-, and, to a lesser extent, alpha-band spectral
Autor:
Robert S. Tannehill, Alan Gevins, B. A. Cutillo, Charles L. Yeager, Robert E. Schaffer, Jess Ghannam, J C Doyle, Virginia A. Gilcrease
Publikováno v:
Science. 213:918-922
A new technique has been developed for identifying, in humans, dynamic spatiotemporal electrical patterns of the brain during purposive behaviors. In this method, single-trial time-series correlations between brain macropotentials recorded from diffe
Autor:
Robert E. Schaffer, Theodore H. Blau
Publikováno v:
Journal of Consulting Psychology. 24:35-42
Autor:
Alan Gevins, B. A. Cutillo, Robert S. Tannehill, J C Doyle, Robert E. Schaffer, Steven L. Bressler
Publikováno v:
Science (New York, N.Y.). 220(4592)
Dynamic spatial patterns of correlation of electrical potentials recorded from the human brain were shown in diagrams generated by mathematical pattern recognition. The patterns for "move" and "no-move" variants of a brief visuospatial task were comp
Autor:
J C Doyle, G.M Zeitlin, M.F Dedon, Robert E. Schaffer, Alan Gevins, Charles D. Yingling, Charles L. Yeager, J.T Roumasset
Publikováno v:
Electroencephalography and clinical neurophysiology. 47(6)
This paper presents a methodology which uses nonlinear pattern recognition to study the spatial distribution of EEG patterns accompanying higher cortical functions. The multivariate decision rules reveal the essential EEG patterns which differentiate
Publikováno v:
Electroencephalography and clinical neurophysiology. 47(6)
This experiment was designed to distinguish possible EEG correlates of the cognitive components of tasks from EEG patterns associated with stimulus characteristics, limb and eye movements, and performance-related factors such as subjects' ability and
Autor:
B. A. Cutillo, Alan Gevins, Robert S. Tannehill, Robert E. Schaffer, Steven L. Bressler, J C Doyle
Publikováno v:
Psychophysiology. 22(1)
Spatial patterns of correlation between pairs of electrodes in 15 channels of human scalp-recorded brain potentials were determined by applying Neurocognitive Pattern (NCP) Analysis to single-trial EEG data from 9 adults performing a visuospatial tas