Results 31 to 40 of about 73,762 (293)

Contextual Factors Associated with the Achievement of African American and European American Adolescents: A Diversimilarity Approach [PDF]

open access: yes, 1999
The current study is an extension of Luster & McAdoo\u27s 1994 study of African American children and ecological factors impacting academic performance of these children. Luster and McAdoo found that maternal educational level, income, number of children
McKinney, Robin, Ofori-Dankwa, Joseph
core   +1 more source

Variational Cluster Perturbation Theory for Bose-Hubbard models

open access: yes, 2006
We discuss the application of the variational cluster perturbation theory (VCPT) to the Mott-insulator--to--superfluid transition in the Bose-Hubbard model.
Aichhorn M   +9 more
core   +1 more source

LDAcoop: Integrating non‐linear population dynamics into the analysis of clonogenic growth in vitro

open access: yesMolecular Oncology, EarlyView.
Limiting dilution assays (LDAs) quantify clonogenic growth by seeding serial dilutions of cells and scoring wells for colony formation. The fraction of negative wells is plotted against cells seeded and analyzed using the non‐linear modeling of LDAcoop.
Nikko Brix   +13 more
wiley   +1 more source

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

open access: yesFEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point   +7 more
wiley   +1 more source

A Study of Luster Tile Designs from Aveh in Ilkhanid Period [PDF]

open access: yesنگره, 2015
During the fieldwork for rescuing the Fadel Ibn Sulaiman building in Aveh, Markazi province, researchers found, for the first time in the region, many luster tiles with their dates mentioned on them (648 AH). In order to learn more about this art in Aveh
Arash Lashkari   +2 more
doaj  

Descriptions of new luperine genera and species from Mexico : with keys to related taxa (Coleoptera: Chrysomelidae: Galerucinae) [PDF]

open access: yes, 1998
The section Scelidites ofthe subtribe Luperina is diagnosed and described. A key is provided to separate the genera within this section. Cyphotarsis Jacoby is reduced to a junior synonym of Metacoryna Jacoby.
Clark, Shawn M.
core   +1 more source

Theoretical studies of the phase transition in the anisotropic 2-D square spin lattice

open access: yes, 2004
The phase transition occurring in a square 2-D spin lattice governed by an anisotropic Heisenberg Hamiltonian has been studied according to two recently proposed methods.
Jean-Paul Malrieu   +5 more
core   +4 more sources

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

open access: yesFEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon   +6 more
wiley   +1 more source

Analysis of optical magnetoelectric effect in GaFeO_3

open access: yes, 2009
We study the optical absorption spectra in a polar ferrimagnet GaFeO_3. We consider the E1, E2 and M1 processes on Fe atoms. It is shown that the magnetoelectric effect on the absorption spectra arises from the E1-M1 interference process through the ...
D. N. Astrov   +15 more
core   +1 more source

The cooperative regulation of miR‐221 by APE1 and AUF1 impacts p27Kip1 defining a miR signature relevant for cervical cancer

open access: yesFEBS Open Bio, EarlyView.
A regulatory axis involving APE1, AUF1, and miR‐221 is proposed. Pri‐miR‐221 is processed by DROSHA and DICER to generate mature miR‐221, which targets p27Kip1 mRNA. APE1 and AUF1 compete for pre‐miR‐221 binding. Reduced APE1/AUF1 levels impair miR‐221 biogenesis, decrease p27Kip1 mRNA degradation, and promote cell cycle progression, chemoresistance ...
Matilde Clarissa Malfatti   +3 more
wiley   +1 more source

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