Results 41 to 50 of about 531,785 (265)

Tamanho de amostra para a estimação da média mensal de insolação diária em diferentes locais do estado do Rio Grande do Sul Sample size for estimating the average monthly daily insolation in different locations of Rio Grande do Sul State, Brazil

Ciência Rural, 2010
Com o objetivo de determinar o tamanho de amostra (número de anos) para a estimação da média mensal de insolação diária de 30 locais do Estado do Rio Grande do Sul, utilizaram-se os dados de insolação do período de 1960 a 2007. Em cada uma das 360 séries
Alberto Cargnelutti Filho, Ronaldo Matzenauer, Bernadete Radin, Jaime Ricardo Tavares Maluf   +3 more
doaj  

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Dimensionamento de amostra na estimação da população de corós em áreas de campo nativo e de cultivo no Estado do Rio Grande do Sul Sample size for estimating population density of white grubs in native and cultivated areas in Rio Grande do Sul State, Brazil

Ciência Rural, 2011
É importante quantificar a densidade populacional de corós para definir o momento adequado para o controle da praga. Assim, o objetivo deste trabalho foi determinar o tamanho de amostra (número de trincheiras por hectare) para a estimação da média de ...
Alberto Cargnelutti Filho, Mariana Alejandra Cherman, Jerson Vanderlei Carús Guedes, Elder Dal Prá, Débora Graciani Schallemberger, Glauber Renato Stürmer   +5 more
doaj  

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

A weighted error-minimizer parameter estimation technique for one-inflated positive Poisson distribution

Results in Control and Optimization
An error-minimizing estimator is always preferred in model fittings. However, each error-minimizing estimator minimizes error differently. This paper combines four error-minimizing estimators, which are root mean-squared error, mean absolute error, root ...
Razik Ridzuan Mohd Tajuddin
doaj   +1 more source

On the error estimation of multi-spacecraft timing method [PDF]

Annales Geophysicae, 2009
The multi-spacecraft timing method, a data analysis technique based on four-point measurements to obtain the normal vector and velocity of an observed boundary, has been widely applied to various discontinuities in the solar wind and the magnetosphere
X.-Z. Zhou, X.-Z. Zhou, Z. Y. Pu, Q.-G. Zong, Q.-G. Zong, P. Song, S. Y. Fu, J. Wang, H. Zhang   +8 more
doaj   +1 more source

The human gut microbiome across the life course

FEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +4 more
wiley   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

FEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas, Brigitta Maruzs, Zsófia E. Kálmán, Tomas Klumpler, Gyula Batta, Bálint Péterfia, Zoltán Gáspári   +6 more
wiley   +1 more source

Estimation Error in the Correlation of Two Random Variables: A Spreadsheet-Based Exposition

Spreadsheets in Education, 2009
Although the statistical term correlation is well-known across many academic disciplines, estimation error in the correlation has traditionally been considered to be a topic too difficult for students outside statistical fields.
Clarence C. Y. Kwan
doaj  

A delay deviation tolerance IP geolocation method with error estimation

Scientific Reports, 2022
IP geolocation is an important basis of location-based network services, while error estimation is an important basis for judging the reliability of results. Most of the existing IP geolocation algorithms cannot estimate the geolocation error.
Shuodi Zu, Xiangyang Luo, Shaoyong Du, Liang Wang   +3 more
doaj   +1 more source