Results 51 to 60 of about 6,014 (285)

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Some Designs From Symmetric Balanced Incomplete Block Design [PDF]

open access: yes, 2013
In this paper the concept of symmetric balanced incomplete block designs was adopted to derive some designs. A theorem was proposed to aid in the derivations of these designs.
Mbegbu, JI
core   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

Resolvable semi-balanced incomplete split-block designs [PDF]

open access: yes
A method for constructing some new incomplete split-block designs with desirable properties is given. The new class of the designs is characterized with respect to the general balance property. Moreover, the efficiency factors of the designs proposed are
Iwona Mejza   +4 more
core   +1 more source

Quasi-symmetric balanced incomplete block designs [PDF]

open access: yes, 1968
A balanced incomplete block design (v, b, r, k, λ) is called quasi-symmetric if each block intersects one other block in x varieties and the remaining b−2 blocks in y varieties each.
Kalbfleisch, J.G., Stanton, R.G.
core   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

α‐Synuclein aggregation landscape from phase separation to neurotoxic intermediates

open access: yesFEBS Letters, EarlyView.
Alpha‐synuclein aggregation in Parkinson's disease involves a complex landscape of transient intermediates, including oligomers, fibrils and liquid–liquid phase separation (LLPS). A view is emerging in which LLPS maturation into solid‐like condensates may contribute to the formation of neurotoxic species.
Silvia Arino   +2 more
wiley   +1 more source

Two-level Cretan matrices constructed using SBIBD

open access: yesSpecial Matrices, 2015
Two-level Cretan matrices are orthogonal matrices with two elements, x and y. At least one element per row and column is 1 and the other element has modulus ≤ 1.
Balonin N. A., Seberry Jennifer
doaj   +1 more source

Virtually balanced incomplete block designs. [PDF]

open access: yes, 1994
Virtually balanced incomplete block ...
Weiguang Zhang (494785)
core  

Construction of balanced treatment incomplete block-designs [PDF]

open access: yes, 1992
Some methods of construction of balanced treatment incomplete block (BTIB) designs from group divisible and triangular designs have been presented, together with a table of BTIB designs in the range p greater-than-or-equal-to 6, r less-than-or-equal-to ...
Sinha, K.
core   +1 more source

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