During gestation, the cells of the primordial gonad that lie along the urogenital ridge are in a bipotential state, meaning they possess the ability to become either male cells ( Sertoli and Leydig cells ) or female cells ( follicle cells and Theca cells ).

In a larger perspective, the whole folliculogenesis from primordial to preovulatory follicle is located in the stage of meiosis I of ootidogenesis in oogenesis.

In a larger perspective, the whole folliculogenesis, from primordial to preovulatory follicle, belongs to the stage of ootidogenesis of oogenesis.

The primordial nature of God consists of all potentialities of existence for actual occasions, which Whitehead dubbed eternal objects.

The cosmos consists of three parts, the world, the year ( or time ), and man, which are combined in such a way that the three primordial elements are contained in each of the three categories.

In its relation to the construction of the cosmos, matter consists of the three primordial elements, which, however, are not chemically connected with one another, but modify one another only physically.

One set concerns representations of key events in an individual's autobiography .... The second set of representations underlying the neural self consists of the primordial representations of the individual's body '.

Indium ( In ) consists of two primordial nuclides, with the most common (~ 95. 7 %) nuclide (< sup > 115 </ sup > In ) being measurably radioactive ( although with a very long half-life ).

The oldest granule cells are generated in a specific region of the hippocampal neuroepithelium and migrate into the primordial dentate gyrus around embryonic days ( E ) 17 / 18, and then settle as the outermost cells in the forming granular layer.

Where the celestial masters had added the pure gods of the Tao to the popular pantheon, Shàngqīng enlarged this to include an entirely new layer of existence between the original, creative force of the Tao, represented by the deity " yuan shi tian wang " ( heavenly king of primordial beginning ), and created world as we know it.

His jagged flashes of color give the impression that one layer of color has been " torn " off the painting, revealing the colors underneath, reminiscent of stalactites and primordial caverns.

During post-pubescent follicular development, and over the course of roughly a year, primordial follicles that have begun development undergo a series of critical changes in character, both histologically and hormonally.

In female mammals, meiosis begins immediately after primordial germ cells migrate to the ovary in the embryo, but in the males, meiosis begins later, at the time of puberty.

* 1998: John Gearhart ( Johns Hopkins University ) extracted germ cells from fetal gonadal tissue ( primordial germ cells ) before developing pluripotent stem cell lines from the original extract.

Additionally, cells expressing SRY will continue to proliferate to form the primordial testis.

In Star Trek, the abundance of humanoid aliens within the Star Trek universe is explained by advancing the story of a primordial humanoid civilization, the Ancient humanoids, who seeded the galaxy with genetically-engineered cells to guide the evolution of life on a multitude of worlds toward a humanoid form.

However, gametogonia are themselves successors of primordial germ cells.

During early embryonic development, primordial germ cells ( PGCs ) from the dorsal endoderm of the yolk sac migrate along the hindgut to the gonadal ridge.

Recent studies have demonstrated that it is possible to give rise to primordial germ cells from ES.

In mammals, a few cells of the early embryo are induced by signals of neighboring cells to become primordial germ cells.

Specification of primordial germ cells in the laboratory mouse is initiated by high levels of Bone Morphogenetic Protein ( BMP ) signaling, which activates expression of the transcription factors Blimp-1 / Prdm1 and Prdm14.

One of these ways involves stimulation of the arriving primordial cells to differentiate into sperm.

In the absence of the Sry gene, primordial germ cells differentiate into eggs.

After migration primordial germ cells will become oogonia in the forming gonad ( ovary ).

The testes begin as an immigration of primordial germ cells into testicular cords along the genital ridge in the abdomen of the early embryo.

" Oogonium " ( plural oogonia ) may refer to either a primordial oocyte in a female fetus or the female gametangium of certain thallophytes.

Therefore, all primordial americium ( americium that was present on Earth during its formation ) should have decayed by now.

This biography depicts Anthony as an illiterate and holy man who through his existence in a primordial landscape has an absolute connection to the divine truth, which always is synonymous with that of Athanasius as the biographer.

Written in Greek around 360 by Athanasius of Alexandria, it depicts Anthony as an illiterate and holy man who through his existence in a primordial landscape has an absolute connection to the divine truth, which always is in harmony with that of Athanasius as the biographer.

The single primordial beryllium isotope < sup > 9 </ sup > Be also undergoes a ( n, 2n ) neutron reaction with neutron energies over about 1. 9 MeV, to produce < sup > 8 </ sup > Be, which almost immediately breaks into two alpha particles.

Giant clouds of these primordial elements would coalesce through gravity to form stars and galaxies, and the heavier elements would be synthesized either within stars or during supernovae.

" Therefore I should infer from analogy that probably all the organic beings which have ever lived on this earth have descended from some one primordial form, into which life was first breathed.

It was used for many years as a probe of physics at the time of the Big Bang, as the theory of Big Bang nucleosynthesis connects the abundances of primordial light elements with the features of the early universe.

* whether primordial black holes were formed in our universe, and what happened to them.

Current work on this model centers on whether it can succeed in stabilizing the size of the compactified dimensions and produce the correct spectrum of primordial density perturbations.

These models solve the horizon problem through an expanding epoch well before the Big Bang, and then generate the required spectrum of primordial density perturbations during a contracting phase leading to a Big Crunch.

The first 98 elements have been detected directly on Earth as primordial nuclides present from the formation of the solar system, or as naturally-occurring fission or transmutation products of uranium and thorium.

As a result, the primordial abundance of atoms ( or ions ) consisted of roughly 75 % < sup > 1 </ sup > H, 25 % < sup > 4 </ sup > He, and 0. 01 % deuterium, with only tiny traces of lithium, beryllium, and perhaps boron.

However, the element abundance in intergalactic space can still closely resemble primordial conditions, unless it has been enriched by some means.

These include some produced by cosmic rays or other nuclear reactions ( see cosmogenic and nucleogenic nuclides ), and others produced as decay products of long-lived primordial nuclides.

The more distant galaxies are being viewed as they appeared in the past, so their abundances of elements appear closer to the primordial mixture.

" The synthesis of his dialectical examination of the nature of war is his famous " trinity ," saying that war is " a fascinating trinity — composed of primordial violence, hatred, and enmity, which are to be regarded as a blind natural force ; the play of chance and probability, within which the creative spirit is free to roam ; and its element of subordination, as an instrument of policy, which makes it subject to pure reason.

All five elemental processes in their essential purity are inherent in the mindstream and link the trikaya and are aspects of primordial energy.

Female infertility by chemotherapy appears to be secondary to premature ovarian failure by loss of primordial follicles.

Gregory Benford had a form of plasma-based life exist in the accretion disk of a primordial black hole in his novel Eater.

Speaking for myself, the definition that seems least inadequate because most embracing is this: Myth narrates a sacred history ; it relates an event that took place in primordial Time, the fabled time of the " beginnings.

Characteristic of many Native American myths, earth-diver creation stories begin as beings and potential forms linger asleep or suspended in the primordial realm.

They are a signal from cosmic inflation and are determined by the density of primordial gravitational waves.

According to Bernard McGinn, " mythic patterns " such as " the primordial struggle between good and evil " appear in passages throughout the Hebrew Bible, including passages that describe historical events.