Results 11 to 20 of about 248,407 (299)

Cryptanalysis Knapsack Cipher Using Artificial Immune System [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2009
In this work, the use of an artificial immune system (AIS ) in  cryptanalysis  is explored. This AIS uses the clonal selection principle for the cryptanalysis of knapsack cipher.
Eman Al-Obaidy
doaj   +1 more source

A systematic approach to cancer: evolution beyond selection. [PDF]

open access: yes, 2017
Cancer is typically scrutinized as a pathological process characterized by chromosomal aberrations and clonal expansion subject to stochastic Darwinian selection within adaptive cellular ecosystems.
Miller, William B, Torday, John S
core   +1 more source

A Population Dynamics Model for Clonal Diversity in a Germinal Center

open access: yesFrontiers in Microbiology, 2017
Germinal centers (GCs) are micro-domains where B cells mature to develop high affinity antibodies. Inside a GC, B cells compete for antigen and T cell help, and the successful ones continue to evolve.
Assaf Amitai   +9 more
doaj   +1 more source

Clonal expansion within pneumococcal serotype 6C after use of seven-valent vaccine [PDF]

open access: yes, 2013
Streptococcus pneumoniae causes invasive infections, primarily at the extremes of life. A seven-valent conjugate vaccine (PCV7) is used to protect against invasive pneumococcal disease in children.
Chan, Jacqueline   +10 more
core   +2 more sources

Negative Clonal Selection in Tumor Evolution [PDF]

open access: yesGenetics, 2005
Abstract Development of cancer requires the acquisition of multiple oncogenic mutations and selection of the malignant clone. Cancer evolves within a finite host lifetime and mechanisms of carcinogenesis that accelerate this process may be more likely to contribute to the development of clinical cancers.
Robert A, Beckman, Lawrence A, Loeb
openaire   +2 more sources

Selection bases of developing new varieties of willow family (Salicaceae Mirb.) to create energy plantations

open access: yesPlant Varieties Studying and Protection, 2016
Purpose. To develop an algorithm of creation of new highly productive clonal varieties of Salicaceae family representatives with improved agronomic characters that can be used at energy plantations Methods.
Я. Д. Фучило   +2 more
doaj   +1 more source

Early life imprints the hierarchy of T cell clone sizes

open access: yeseLife, 2020
The adaptive immune system responds to pathogens by selecting clones of cells with specific receptors. While clonal selection in response to particular antigens has been studied in detail, it is unknown how a lifetime of exposures to many antigens ...
Mario U Gaimann   +3 more
doaj   +1 more source

Genomic predictions improve the performance of clonal cultivars in oil palm. [PE0834] [PDF]

open access: yes, 2020
Prediction of clonal genetic value is among the difficulties of the genetic improvement of oil palm (Elaeis guineensis Jacq.) yield. Presently, clonal selection requires two stages of phenotypic selection (PS): preselection on the phenotypic values of ...
Affandi, Dadang   +7 more
core  

Design of Fixed and Ladder Mutation Factor-Based Clonal Selection Algorithm for Solving Unimodal and Multimodal Functions

open access: yesApplied Computational Intelligence and Soft Computing, 2011
Clonal selection algorithms (CSAs) is a special class of immune algorithms (IA), inspired by the clonal selection principle of the human immune system. To improve the algorithm's ability to perform better, this CSA has been modified by implementing two ...
Suresh Chittineni   +5 more
doaj   +1 more source

Bacterial clonal diagnostics as a tool for evidence-based empiric antibiotic selection. [PDF]

open access: yesPLoS ONE, 2017
Despite the known clonal distribution of antibiotic resistance in many bacteria, empiric (pre-culture) antibiotic selection still relies heavily on species-level cumulative antibiograms, resulting in overuse of broad-spectrum agents and excessive ...
Veronika Tchesnokova   +11 more
doaj   +1 more source

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