Results 71 to 80 of about 312,870 (268)

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

open access: yesFEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri   +5 more
wiley   +1 more source

Densidade de plantio na produtividade e nos teores de nutrientes nas folhas e frutos da bananeira cv. Thap Maeo Plants density on yield and nutrients concentration in leaves and fruits of banana cv. Thap Maeo

open access: yesRevista Brasileira de Fruticultura, 2007
O objetivo deste estudo foi avaliar o efeito da densidade de plantio na produtividade, tempo de colheita e teores dos nutrientes nas folhas e nos frutos de bananeira cv. Thap Maeo (AAB) cultivada em Manaus (AM).
Adônis Moreira   +2 more
doaj   +1 more source

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

open access: yesFEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança   +2 more
wiley   +1 more source

Test Spaces for Normal Spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1962
Let Q be a class of topological spaces. For X in Q, let dim X denote the dimension of X defined in terms of finite open coverings. If Q is the class of all normal spaces, then the dimension of spaces X in Q is characterized by the following theorem [2, p. 212]: dimX^n if, and only if, given any closed subset C of X, any continuous mapping of C into the
openaire   +2 more sources

An Impact Assessment of Speed Humps’ Geometric Characteristics and Spacing on Vehicle Speed: An Overview

open access: yesInfrastructures
This review examines the effect of geometric properties and the spacing of road humps on vehicle speed and noise, with a particular emphasis on South Asian contexts, especially Malaysia.
Nawaf M. Alshabibi
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

Spaces of Spaces

open access: yes, 2014
Wheeler emphasized the study of Superspace - the space of 3-geometries on a spatial manifold of fixed topology. This is a configuration space for GR; knowledge of configuration spaces is useful as regards dynamics and QM.In this Article I consider furthmore generalized configuration spaces to all levels within the conventional `equipped sets' paradigm ...
openaire   +2 more sources

Standardization of spacing and weed management practices in SRI system of rice cultivation under organic conditions in relation to sustainable agriculture in the changing scenario of climate

open access: yesEnvironment Conservation Journal, 2014
A field experiment was conducted during kharif seasons of 2009 & 2010 at Model Organic Farm of Department of Organic agriculture, CSK Himachal Pradesh Krishi Vishvavidyalya Palampur in factorial randomized block design with three replications consisting ...
Rameshwar K.   +4 more
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

Dual spaces of weighted spaces [PDF]

open access: yesTransactions of the American Mathematical Society, 1970
The topological duals of a large class of weighted spaces of continuous functions are characterized as spaces of Radon measures which can be factored into a product of a weight function and a bounded Radon measure. We next obtain a representation for a base for the equicontinuous subsets of these dual spaces and for the extremal points of the members ...
openaire   +2 more sources

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