نتایج جستجو برای: aggregation behaviours

تعداد نتایج: 99523  

2012
Fernando Silva Paulo Urbano Sancho Oliveira Anders Lyhne Christensen

We propose and evaluate a novel approach called Online Distributed NeuroEvolution of Augmenting Topologies (odNEAT). odNEAT is a completely distributed evolutionary algorithm for online learning in groups of embodied agents such as robots. While previous approaches to online distributed evolution of neural controllers have been limited to the optimisation of weights, odNEAT evolves both weights...

2006
Thomas Cornulier Vincent Bretagnolle

Testing for aggregation or regularity in point patterns is difficult in the presence of spatial variation in abundance due to environmental heterogeneity. Using a recently developed method generalizing Ripley’s K function for non homogeneous point patterns, we test the aggregation of the nests in two species of birds (little owl and Montagu’s harrier) exhibiting heterogeneous distributions in r...

Journal: :اقتصاد و توسعه کشاورزی 0
حبیب اله سلامی علی محمد جعفری زینب شکوهی

while ignoring income distribution and estimating aggregate demand generally leads to aggregation bias and thus, does not reflect households’ demand properly, yet aggregation bias is rarely considered in empirical demand studies and simply is ignored in most cases. the objective of the present study is to estimate aggregation bias in households’ demand for various types of meats and to evaluate...

Journal: :journal of paramedical sciences 0
bi bi fatemeh nobakht motlagh ghochani proteomics research center, faculty of paramedical sciences, shahid beheshti university of medical sciences, tehran seyedeh zahra moosavi-nejad department of biology, faculty of basic sciences, alzahra university, tehran

protein aggregation is a serious problem for both biotechnology and cell biology. diseases such as prion misfolding, alzheimer’s, and other amyloidosis are phenomena for which protein aggregation in our living cells is of considerable relevance. human lysozyme has been shown to form amyloid fibrils in individuals suffering from nonneuropathic systemic amyloidosis, all of which have point mutati...

Journal: :PLOS Computational Biology 2021

Multicellular organization is particularly vulnerable to conflicts between different cell types when the body forms from initially isolated cells, as in aggregative multicellular microbes. Like other functions of phase, coordinated collective movement can be undermined by cells that spend energy fuelling motion and ‘cheaters’ get carried along. The evolutionary stability behaviours against such...

Journal: :iranian journal of pharmaceutical research 0
marjan esfahanizade department of medicinal chemistry, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. central research laboratories, shahid beheshti university of medical sciences, tehran, iran shohreh mohebbi department of medicinal chemistry, school of pharmacy, zanjan university of medical sciences, zanjan, iran. behnam dashtbozorg department of medicinal chemistry, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran salimeh amidi department of medicinal chemistry, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran ali gudarzi department of medicinal chemistry, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran seyed abdolmajid ayatollahi department of medicinal chemistry, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran phytochemistry research center, shahid beheshti university of medical sciences, tehran, iran

a series of novel 2-aminopyrimidine and 2-substituted-4,6-diaminopyrimidine derivatives have been synthesized and their anti platelet aggregation activities were assessed against adp and arachidonic acid- induced platelet aggregation in human plasma using light transmission aggregometry. none of the compounds showed satisfactory activity against the aggregation induced by adp. however, satisfac...

Journal: :iranian journal of fuzzy systems 2011
naim cagman serdar enginoglu filiz citak

in this work, we define a fuzzy soft set theory and its related properties. we then define fuzzy soft aggregation operator that allows constructing more efficient decision making method. finally, we give an example which shows that the method can be successfully applied to many problems that contain uncertainties.

E Nohi M Azizzadeh forozi S Mohamad-alizadeh Y Nikiyan

Caring is the essence of nursing and is a universal phenomenon, not only essential for effective therapy also for self actualization and for human survival. Since research and information about caring has implications for improving maintenance of the quality of caring performance, this study was inducted to compare the importance of caring behaviours in professional nurses and in- patients in m...

Akram Mehrabbeik, Maryam Askari, Nasim Namiranian,

Objective: Diabetic patients are more likely to be infected and are at the higher risk of morbidity and mortality in COVID-19 pandemic. The aim of this study was to compare the preventive behaviours and perceived risk of COVID-19 in women with and without type 2 diabetes mellitus (T2DM). Materials and Methods: The analytical cross-sectional study was conducted from June to July 2020 on 151 par...

2014
Reza Hesan Amineh Ghorbani Virginia Dignum

The behavior of agents is not only influenced by other individual agents, but also by the overall behavior of groups of agents. Since group behaviors are the aggregation of individual behaviours, they are mostly neglected in agents’ decision making process mainly because in agent-based models, the focus is on interactions and individuals behaviors rather than global patterns. In this paper we e...

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