Browsing by Title
Now showing items 53905-53924 of 57070
-
Two Foraging Algorithms for Robot Swarms Using Only Local Communication
(IEEE, 2010)Large collections of robots have the potential to perform tasks collectively using distributed control algorithms. These algorithms require communication between robots to allow the robots to coordinate their behavior and ... -
Two Forms of Spatial Imagery: Neuroimaging Evidence
(SAGE Publications, 2009)Spatial imagery may be useful in such tasks as interpreting graphs and solving geometry problems, and even in performing surgery. This study provides evidence that spatial imagery is not a single faculty; rather, visualizing ... -
Two Fundamental Theorems on Deformations of Polarized Varieties
(Johns Hopkins University Press, 1964) -
Two Genetic Loci Produce Distinct Carbohydrate-Rich Structural Components of the Pseudomonas aeruginosa Biofilm Matrix
(American Society for Microbiology, 2004)Pseudomonas aeruginosa forms biofilms, which are cellular aggregates encased in an extracellular matrix. Molecular genetics studies of three common autoaggregative phenotypes, namely wrinkled colonies, pellicles, and ... -
Two Improved Methods for Preparing Ferritin-Protein Conjugates for Electron Microscopy
(Rockefeller University Press, 1975-02-01)Two improved procedures were developed for activating ferritin so that the ferritin could be covalently linked to antibodies. One procedure involved use of a water-soluble carbodiimide and N-hydroxysuccinimide to prepare ... -
Two Independent Pathways for Self-Recognition in Proteus Mirabilis Are Linked by Type VI-Dependent Export
(American Society for Microbiology, 2013)Swarming colonies of the bacterium Proteus mirabilis are capable of self-recognition and territorial behavior. Swarms of independent P. mirabilis isolates can recognize each other as foreign and establish a visible boundary ... -
Two Is Better Than One
(Blackwell Publishing, 2009)Psychologists too often rely on only one source of evidence to affirm the validity of a construct. However, they usually do not know all the conditions that can produce the evidence they gather. Hence, the inference is ... -
Two leaves of the Gottschalk Antiphonary
(Harvard Library, 1995) -
The two lives of the poem
(Harvard Library, 1994) -
Two Membrane-Associated Tyrosine Phosphatase Homologs Potentiate C. elegans AKT-1/PKB Signaling
(Public Library of Science, 2006)Akt/protein kinase B (PKB) functions in conserved signaling cascades that regulate growth and metabolism. In humans, Akt/PKB is dysregulated in diabetes and cancer; in Caenorhabditis elegans, Akt/PKB functions in an ... -
Two Methods for Validating Brain Tissue Classifiers
(Springer Science + Business Media, 2005)In this paper, we present an evaluation of seven automatic brain tissue classifiers based on level of agreements. A number of agreement measures are explained, and we show how they can be used to compare different segmentation ... -
Two Models of Equality and Responsibility
(University of Calgary Press, 2008) -
The Two Modes of Inclusion
(2016-05-10)This paper argues that, as the civil rights movement emerged and began to make its claims for inclusion of African Americans in institutions of higher education, two modes of inclusion emerged — two ideas of what it might ... -
Two Modes of Interaction of the Single-stranded DNA-binding Protein of Bacteriophage T7 with the DNA Polymerase-Thioredoxin Complex
(American Society for Biochemistry and Molecular Biology, 2010)The DNA polymerase encoded by bacteriophage T7 has low processivity. Escherichia coli thioredoxin binds to a segment of 76 residues in the thumb subdomain of the polymerase and increases the processivity. The binding of ... -
Two Mutations in the SARS-CoV-2 Spike Protein and RNA Polymerase Complex Are Associated With COVID-19 Mortality Risk
(2021)SARS-CoV-2 mortality has been extensively studied in relation to host susceptibility. How sequence variations in the SARS-CoV-2 genome affect pathogenicity is poorly understood. Association between whole-genome sequencing ... -
Two New Mycobacterium Strains and Their Role in Toluene Degradation in a Contaminated Stream
(American Society for Microbiology, 1998)Two toluene-degrading strains, T103 and T104, were isolated from rock surface biomass in a freshwater stream contaminated with toluene. The strains exhibit different capacities for degradation of toluene and other aromatic ... -
Two New Substrates in Insulin Signaling, IRS5/DOK4 and IRS6/DOK5
(American Society for Biochemistry and Molecular Biology, 2003)We have identified two new human genes that encode proteins with tandem pleckstrin homology-phosphotyrosine binding (PH-PTB) domains at their amino termini. Because the other known PH-PTB proteins ( insulin receptor ... -
Two Newtonian studies
(Harvard Library, 1959) -
Two of a Kind or a Full House? Reproductive Suppression and Alloparenting in Laboratory Mice
(Public Library of Science, 2016)Alloparenting, a behavior in which individuals other than the actual parents act in a parental role, is seen in many mammals, including house mice. In wild house mice, alloparental care is only seen when familiar sibling ...