Does it have obvious planes of cleavage OR obvious fracture-patterns (cleavage in many different directions)? (selectsmart.com)
A high density of {100} and {110} cleavage planes is observed in the CGHAZ, which is often found to be the fracture location for the impact toughness testing. (ornl.gov)
Perpendicular2
This characteristic is specific to the hexagonal crystal system, where the c-axis is perpendicular to a plane of symmetry and the a-axis and b-axis are of equal length and intersect at 120-degree angles. (proprofs.com)
Finely laminated beds of metasiltstone perpendicular to cleavage in rocks of the Urbana Formation (Cu), east of New Market, central Piedmont, Frederick Co., Md. (usgs.gov)
Louvet-Vallee, S., Vinot, S. & Maro, B. Mitotic spindles and cleavage planes are oriented randomly in the two-cell mouse embryo. (nature.com)
A microtubule is a cellular structure, part of what is called the mitotic spindle apparatus, which normally determines cleavage direction. (brown.edu)
Hardness1
He'll also give us some tips on hardness and cleavage planes of popular stones which affect their use in certain types of settings. (mbmag.org)
Embryos4
Here, we show that cell geometry and polarity domains cooperate, rather than compete, in positioning the cleavage plane during UCDs in early ascidian embryos. (elifesciences.org)
The researchers discovered that the second cleavages of dividing cells in frog embryos, which are normally vertical, could be re-oriented to a horizontal plane by applying a horizontal magnetic field. (brown.edu)
The more powerful the field, the higher the number of re-oriented cleavages among the embryos. (brown.edu)
In mouse embryos, cells seem prepatterned to become certain cell lineage because the first cleavage plane has been related with further embryonic-abembryonic axis at the blastocyst stage. (bioone.org)
Parallel3
Late S4 crenulation cleavage planes in the Moretown Fm are pressure solution enhanced, spaced, smooth, parallel, and discrete. (confex.com)
The tendency of a mineral to break along these flat parallel surfaces is known as cleavage. (e-catworld.com)
Writing in the Proceedings of the National Academy of Sciences, the researchers suggest that the magnetic field forced cellular protein ropes, called microtubules, to orient parallel to it, re-orienting the cleavages. (brown.edu)
Weakly1
The S4 crenulation cleavage is only weakly expressed in thin section. (confex.com)
Overall, cleavage is characterized by the rapid division of the fertilized egg, resulting in the generation of numerous blastomeres. (microbiologynote.com)
Basal1
Cleavage is indistinct in one basal direction. (galleries.com)
Defined by the topology1
Hiiragi, T. & Solter, D. First cleavage plane of the mouse egg is not predetermined but defined by the topology of the two apposing pronuclei. (nature.com)
Mica2
This results in 1 excellent cleavage plane of mica. (e-catworld.com)
This cleavage is observed in the ability to peel sheets of mica. (e-catworld.com)
Crystalline1
It shows no evidence of a crystal shape, but has crystalline tendencies, such as visible cleavage planes. (galleries.com)
Surfaces1
when broken apart, the pieces will have planed surfaces, or straight edges. (livescience.com)
Weakness2
On the other hand, schist bedrock can pose a challenge for civil engineering because of its pronounced planes of weakness. (wikipedia.org)
This, as described by Prof. J. W. Judd, consists in the development of a fine lamellar structure or parting due to secondary twinning and the separation of secondary products along these and other planes of chemical weakness ("solution planes") in the crystal. (wikisource.org)
Species2
Cleavage ultimately culminates in the formation of the blastula or blastocyst, depending on the species. (microbiologynote.com)
One distinctive aspect of cleavage is that it increases the number of cells and nuclear mass without a corresponding increase in cytoplasmic mass. (microbiologynote.com)
Lack1
Lack of Growth: During cleavage, there is no significant growth in the size or volume of the embryo. (microbiologynote.com)
Minerals1
All feldspar minerals have two directions of perfect cleavage. (geology.com)
Crystal1
Gemstone cleavage is a break in a crystal along internal planes. (gemsociety.org)
Lateral1
The vertebral bodies increase in size in both anteroposterior (AP) and medial and lateral planes. (medscape.com)
Direction1
Cleavage is perfect in one and good in another direction forming nearly right angled prisms. (galleries.com)
Results2
Blastula Formation: In the majority of animals, cleavage results in the formation of a hollow sphere of cells called the blastula. (microbiologynote.com)
These are two dimensions based on a radically destructive traumatism, since it results in a self-cleavage. (bvsalud.org)
Division4
Cell Division: Cleavage involves the rapid division of the fertilized egg through mitosis . (microbiologynote.com)
Holoblastic cleavage, also known as total or complete cleavage, is a type of cleavage where the entire egg undergoes division. (microbiologynote.com)
The traumatic violence perpetrated among the subjects in school is superimposed by an introjected cleavage in the division of classes, specifically in the separation between public and private education, as well as in the denial of racism of the Brazilian society. (bvsalud.org)
Content1
Proportional Nuclear-Cytoplasmic Ratio: As cleavage progresses, there is a fixed and balanced ratio between the nuclear material and the cytoplasmic content within each blastomere. (microbiologynote.com)
Morula Formation: In certain animals, such as mammals, cleavage leads to the formation of a solid mass of cells called the morula. (microbiologynote.com)
Highly cleaved metasiltstone of the Harpers Formation (Ch) is folded with inclined spaced cleavage, western Blue Ridge near Harpers Ferry, Jefferson Co., W.Va. (usgs.gov)
Cell1
Cell Proliferation: Cleavage ensures the production of a sufficient number of cells for the subsequent development and construction of tissues and organs within the embryo. (microbiologynote.com)
Internal1
All show substantial internal fracturing and cleavage planing, though. (galleries.com)
Rocks1
In SD rocks, S3 varies from a spaced to a crenulation cleavage and is associated with the overall structure of the CVB whereas S4 is always a superposed crenulation cleavage and is related to the D4 Brownington Syncline. (confex.com)
Perfect1
Perfect cleavage, with cleavage faces intersecting at right angles and striations often present on cleavage faces. (geology.com)
Show1
Description - These Citrine beads have a good colour and show the natural cleavage planes and inclusions. (beadshopuk.com)
Western1
For a caspase-9-specific test, 5 μg of pcWNV-Cp-DJY or pcWNV-CpWT was cotransfected with a dominant negative caspase-9 (DN caspase-9) construct, and cleavage of procaspase-9 protein was determined by Western blot analysis with antihuman caspase-9 antibody (MBL, Nagoya, Japan). (cdc.gov)
Human1
They are all serious poets, that is, human beings for whom writing poetry is morally, a profoundly central activity, not a mere hobby or ornamental grace" (Joyce, "Irish Terrain: Alternative Planes of Cleavage," in Assembling Alternatives: Reading Postmodern Poetries Transnationally , 277). (jacket2.org)
Present1
Cleavage is influenced by the concentration of yolk present in the egg. (microbiologynote.com)
Shape1
Maintained Embryo Shape: The shape of the embryo remains unchanged throughout the process of cleavage. (microbiologynote.com)
Development2
Cleavage is a fundamental process in embryology that occurs during the early stages of embryo development following fertilization. (microbiologynote.com)
Development of epithelial tissues: How are cleavage planes chosen? (ohio.edu)
Amount1
Depending on the amount of yolk, cleavage can be categorized as either holoblastic (total or entire cleavage) or meroblastic (partial cleavage). (microbiologynote.com)
Central1
A central question in understanding cytokinesis is how the cleavage plane is positioned. (biologists.com)