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Topic: Cleavage

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Embryogenesis

Cellular differentiation

Biological cell

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Crystallography

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	Cleavage (crystal) - Wikipedia, the free encyclopedia
		Basal cleavage: cleavage parallel to the base of a crystal, or to the plane of the lateral axes.
		Octahedral, Dodecahedral, or Rhombohedral cleavage: cleavage parallel to the faces of an octahedron, dodecahedron, or rhombohedron (respectively).
		Prismatic cleavage, cleavage parallel to a vertical Prism.
	en.wikipedia.org /wiki/Cleavage_(crystal) (299 words)

	Cleavage
		Thus, blastomere volume is decreased during cleavage to produce the small, individual cellular units that participate in the subsequent morphogenic events that mold the embryo.
		Cleavage also increases the number of nuclei, which amplifies the number of templates that will facilitate the later production of specialized proteins needed for formation of a functional organism.
		At the end of cleavage, the somatic cell cycle is established.
	www.ucalgary.ca /UofC/eduweb/virtualembryo/cleavage.html (595 words)

	Cleavage (breasts) - Wikipedia, the free encyclopedia
		Cleavage is the partial exposure of a woman's breasts, and/or the cleft between them, particularly when exposed by low-cut clothing.
		Cleavage as we know it became fashionable in Europe in the late 15th century with bodices and corsets that flattened the lower part of the breast and pushed up the upper part.
		Cleavage was out of fashion during the 1920s flat-chested flapper look.
	en.wikipedia.org /wiki/Cleavage_(breasts) (238 words)

	Cleavage - Wikipedia, the free encyclopedia
		Cleavage in general refers to a division or separation of form.
		Cleavage (embryo), in embryology, is the division of cells in the early embryo
		Cleavage (crystal), in mineralogy and materials science, is a process of splitting a single crystal
	en.wikipedia.org /wiki/Cleavage (187 words)

	Mineral Gallery - the property of CLEAVAGE
		Cleavage is said to be basal when it occurs perpendicular to the major axis of the mineral and prismatic when it occurs parallel to the major axis.
		Multiple cleavages that produce geometric polygons are referred to using the name of the geometric polygon, such as octahedral cleavage in the mineral fluorite, cubic cleavage in the mineral halite or rhombohedral cleavage in calcite (pictured).
		Cleavage, being related to structure, is important at times in the correct identification of a mineral's symmetry.
	mineral.galleries.com /minerals/cleavage.htm (682 words)

	Mineral Properties: Cleavage, Fracture, and Parting
		Cleavage exhibited on some prismatic and tabular minerals in which a crystal cleaves on the pinicoidal plane, which is the third dimension aside from the basal and prismatic sides.
		Cleavage exhibited on minerals crystallizing in the hexagonal crystal system as rhombohedrons, in which small rhombohedrons break off of the existing rhombohedron.
		Cleavage and fracture differ in that cleavage is the break of a crystal face where a new face (resulting in a smooth plane) is formed, whereas fracture is the "chipping" of a mineral.
	www.minerals.net /resource/property/cleavage.htm (1329 words)

	Cleavage 1
		After the 16 cell stage, the cleavages become more difficult to follow, due to the increasing number of cells and to the division of blastomeres becoming asynchronous.
		Cleavage continues, forming a mass of cells which organizes itself into the blastula.
		With continuing cleavage, the cells in centre begin to lose contact with one another, and a central fluid-filled cavity (the blastocoel) forms.
	www.uoguelph.ca /zoology/devobio/210labs/cleavage1.html (454 words)

	cleavage and fracture and parting and hackly fracture and splintery fracture and conchoidal and subconchoidal and ...
		cleavage and fracture and parting and hackly fracture and splintery fracture and conchoidal and subconchoidal and aegrine and pyroxene and mica and galena
		Cleavage is either the plane along which crystals can be easily split, the property of splitting along such planes or the action of splitting the crystal along the lines of natural breakage.
		While cleavage is the break of a crystal face that results in a new, somewhat smooth face being formed, fracture is the chipping of the stone.
	www.willamette.edu /~blong/MoreWords/Cleavage.html (836 words)

	Cleavage Plus (Site not responding. Last check: 2007-11-07)
		Cleavage Plus is an all natural herbal dietary supplement containing absolutely no additives, fillers or lubricants.
		Cleavage Plus is an all natural herbal dietary supplement containing absolutely no fillers or additives.
		Cleavage Plus's unique formula was developed by chemists with over 45 years experience in the dietary supplement field.
	www.ngucdep.com /faq.htm (1324 words)

	Cleavage
		Cleavage is a feather or crack that formed along the atomic growth plane.
		Cleavage (crack or break) is described as a break in a diamond parallel to a cleavage plane.
		In other words the basic difference between a feather and a cleavage is that the cleavage runs parallel to the cleavage plane, and a feather is not parallel to the cleavage plane.
	www.pricescope.com /diamonds/x24685.htm (689 words)

	Mineral Identification Key Cleavage
		Cleavage refers to the way some minerals break along certain lines of weakness in their structure.
		Cleavages are described in terms of their quality - how smoothly the mineral breaks - and their difficulty - how easy, or how hard, it is to produce the cleavage.
		By-and-large, cleavages at 90 degrees to one another indicate a cubic form, cleavages at 120 and 60 degrees in the same sample indicate a rhombohedral form, and cleavages at acute to obtuse angles over long surfaces indicate a prismatic form – such as in amphiboles.
	www.minsocam.org /MSA/collectors_corner/id/mineral_id_keyi6.htm (683 words)

	Cleavage Determinants after Breast Augmentation: Advanced Art of Cosmetic Surgery
		Cleavage depth and width attainable after implant breast augmentation is not equal for every patient, and is greatly dependent on many factors, most of which are predictable before breast augmentation is performed.
		The result is pleasing, but depth of the cleavage is limited by the chest shape configuration.
		A prominent breastbone is responsible for some loss of potential cleavage, since the depth of the cleavage is limited by forward sternal position, and divergence of the breasts to the sides.
	www.advanced-art.com /Breast-Aug-Cleavage.htm (794 words)

	What part of your toe should show? (Site not responding. Last check: 2007-11-07)
		Toe cleavage gives women a happy medium between showing off their feet without letting it all hang out, as the tips of the toes are covered.
		Cervone said while shoes with toe cleavage are a relatively small percentage of women's footwear at T.J. Maxx, they will comprise about 7 percent this year compared to 3 percent last year.
		Toe cleavage has grown out of the overall emphasis on the female foot, most noticeable in the summer as women don thong sandals, slides and open-toed shoes but continued throughout the year.
	www.eagletribune.com /news/stories/20000728/LI_001.htm (579 words)

	The Anatomy of the Embryonic Disc (Site not responding. Last check: 2007-11-07)
		The embryonic disc arose by meroblastic cleavage of the germinal disc.
		Recall that the portion of a hen's egg that we call the "yolk" in everyday terms is really a single cell, the female germ cell(or the oocyte or the ovum).
		cleavage is incomplete (meroblastic) and is restricted to the small portion of yolk-free cytoplasm called the germinal disc.
	www.uoguelph.ca /zoology/devobio/210labs/embryodisc1.html (493 words)

	Cleavage and Fracture
		Cleavage and Fracture are minerals properties that describe the way a mineral breaks when stressed.
		A good rule of thumb to determine this type if your not sure is to eliminate the other types of cleavage which are easier sometimes to see and what is left is the two direction.
		This cleavage is often hard to see in some mineral samples containing it.
	www.kinderscience.com /cleavage_and_fracture.htm (388 words)

	Cleavage
		The first one is her growing interest in matriarchal religions, most of whom present the female body in their religious artifacts in a fully or partly unclothed state.
		Obviously the jungle beauty was hoping that a show of cleavage might get Ned to be more proactive in pursuing her.
		Her style is strongly rooted in Parisian fashion and while she is certainly ahead of her time in wearing slacks, she is a far cry from the carefree attitude of Veronica.
	mysite.verizon.net /res0tn4y/id18.html (1104 words)

	Breast enhancers- Cleavage as seen on tv!
		Cleavage breast enhancers are a non-surgical solution to attaining fuller and firmer breasts with the help of a balanced combination of safe, all-natural ingredients.
		Results from the Cleavage breast enhancers may be seen in 6 to 8 weeks taking only one pill in the morning and one at night.
		Cleavage isn't anything like many of the other breast enhancers which require drinking large amounts of water and taking as many as 15 capsules per day...
	www.cleavageonline.com /breast-enhancers.html (279 words)

	Cleavage cream : Natural breast enhancement
		Cleavage breast growth complex is especially formulated for women who desire fuller, firmer breasts with a safe, easy-to-use, non-staining, gentle cream.
		Since Cleavage is the original formula and cream and capsules for many companies under their brand name are produced in the same Laboratory, hence it knows a lot about breast growth products.
		Cleavage Cream nourishes and moisturizes these tissues which stimulates the development of a fuller, more alluring bust line.
	www.indiadiets.com /Shopping/Health_Prod/cleavage_crm.htm (798 words)

	Bio - Cleavage
		Cleavage entered the 2000 NXNE Music Festival in Toronto, as they had done in previous years, but this time they took home the coveted 'Best Canadian Unsigned Band' award.
		Cleavage worked in the studio with Rush's Alex Lifeson (who was apparently extremely impressed with their work) and Edwin's Ruben Huizenga.
		For many in attendance it was their first exposure to Cleavage, but judging from the reaction, all left impressed.
	www3.sympatico.ca /drbryan/cleavage/bio_cleavage.htm (639 words)

	SingaporeMoms - Parenting Encyclopedia - Cleavage
		In embryology, cleavage is the division of cells in the early embryo.
		Octahedral, Dodecahedral, or Rhombohedral cleavage: cleavage parallel to the faces of an octahedron, dodecahedron, or rhombohedron.
		In chemistry, bond cleavage refers to the breaking of a chemical bond in a chemical reaction.
	www.singaporemoms.com /parenting/Cleavage (195 words)

	Cleavage in and around the DR1 Element of the a Sequence of Herpes Simplex Virus Type 1 Relevant to the Excision of DNA ...
		Cleavage in and around the DR1 Element of the a Sequence of Herpes Simplex Virus Type 1 Relevant to the Excision of DNA Fragments with Length Corresponding to One and Two Units of the a Sequence
		The structure of excised DNA assumed to be generated by the site-specific cleavage of two DR1 elements flanking one unit of the a sequence (a) and that by site-specific cleavage of two DR1 elements flanking two units of the a sequence (b) are shown.
		Excision of the a sequence of two units in length by cleavage of the second DR1 distal and in and around the fourth DR1 distal from the S component (in the L-S junction having three or more copies of the a sequence such as in panels b and c) (e-1) is shown.
	jvi.asm.org /cgi/content/full/75/13/5870 (5997 words)

	Cleavage of Mesolecithal Eggs
		The amount of yolk is still sufficiently small to allow complete cleavage of the egg cell.
		The first cleavage was vertical through the animal and vegetal poles.
		The second cleavage was also vertical, but at right angles to the first.
	www.uoguelph.ca /zoology/devobio/210labs/frogcleavage.htm (292 words)

	cleavage. The Columbia Encyclopedia, Sixth Edition. 2001-05
		The directions of these surfaces are related to weaknesses in the atomic structure of the mineral and are always parallel to a possible crystal face.
		The property of cleavage is useful in identifying a mineral species.
		Flagstone, slate, and schist are noted for this property, which arises from the parallel alignment of fine, platy mineral grains, themselves displaying cleavage.
	www.bartleby.com /65/cl/cleavage.html (154 words)

	Cleavage (Site not responding. Last check: 2007-11-07)
		Cleavage Alternative Breast Enhance Capsules®, contain the same 4 main ingredients as Cleavage that actually make the natural breast enhancement process occur, as well as additional vital ingredients.
		Cleavage requires twice the daily dosage compared to Cleavage Alternative Breast Enhance Capsules®, and they also Cleavage encourages twice the length of time to achieve maximum results.
		Cleavage is a registered trademark all rights reserved, Cleavage is represented for comparison only, Cleavage Breast Enhancement.
	www.paradisehottubs.com /cleavage-comparison.htm (208 words)

	Cleavage: modified cell cycle (Site not responding. Last check: 2007-11-07)
		One reason for this is that cleaving cells have a modified cell cycle, in which the two gap phases, G1 and G2 are completely omitted, and the cells cycle rapidly between M and S phases.
		In addition, because the major cytoskeletal systems of the cells are largely devoted to mitosis (microtubules) and cytokinesis (microfilaments) during rapid cleavage division, there is typically an antagonism between periods of rapid cell division and cell movement.
		Thus as the embryo approaches gastrulation, there is a tremendous slowing in the rate of division (note the slope of the curve at the right).
	worms.zoology.wisc.edu /frogs/cleavage/clea_modcell.html (119 words)

	How To Identify Minerals: Cleavage (Site not responding. Last check: 2007-11-07)
		When a mineral sample is broken with a hammer, it breaks along planes of weakness that are part of its crystalline structure.
		Basal cleavages occur along a single plane parallel to the base of the mineral (example, topaz).
		As the quality of the break decreases, cleavage may be described as good, distinct, and poor or none.
	www.sdnhm.org /kids/minerals/howto-cleavage.html (115 words)

	Cleavage (Site not responding. Last check: 2007-11-07)
		A hundred cleavage surfaces parallel to one another all define a single direction of cleavage, because all of them are parallel to the same zone of bond weakness.
		It is the number of directions of cleavage that we record, along with the angles between them.
		When bonds between atoms are approximately the same in all directions within a mineral, breakage occurs either on irregular surfaces (splintery or irregular fracture) or along smooth, curved surfaces (conchoidal fracture), similar to those formed when thick pieces of glass are broken.
	geology.csupomona.edu /alert/mineral/cleavage.htm (358 words)

	Mineral ID_Key
		Cleavages are also described in terms of their quality: How smoothly and easily the mineral breaks.
		By-and-large, cleavages at 90 degrees to one another indicate a cubic form, cleavages at 120 and 60 degrees in the same sample indicate a rhombohedral form, and cleavages at acute to obtuse angles over long surfaces indicate a prismatic form — such as in feldspars.
		Thus, if you have a sample in which you see three directions of cleavage, it is easy to quickly skip over the minerals with only one or two directions of cleavage and go directly to the group which has three.
	www.rockhounds.com /rockshop/mineral_id (8521 words)

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