Sentences with phrase «cell theory of»

The stem cell theory of cancer hypothesizes that «stem - like» cancer cells are responsible for the generation of tumours and for sustaining tumour growth (reviewed in ref.17).

The cell theory of organisms was a change in principle, not merely in degree, compared to all ancient thought.

Not exact matches

Savannah thinks that VAL is a better way to create live streams with a cell phone — a theory that is about to be assessed by a group that includes Kara Swisher, the no - nonsense editor of Recode.

(insert your own, southerners backwoods joke here) So Mendel fails, in my mind, to adequately account for the very narrow gene pool (read single - celled organism) that the theory of evolution begins with.

The theory of societies, like modern general systems theory, pictures a world made up of societies within societies (systems within systems) That is, societies do not just line up side by side like mosaics — they form «nested hierarchies» that go from subatomic particles through cells to animal bodies, or through stars to galaxies.

The theory developed that perhaps lightning struck a pond of water causing several molecules to combine in a random way which by chance resulted in a living cell.

The lineage of scientific explanations discussed in the episode runs from Newton through Darwin, Einstein, chaos theory and, most recently, Murray Cell - Mann, whose Santa Fe Institute devotes itself to the sciences of complexity.

It is only by a leap of science - fiction (the kind exemplified by Teilhard de Chardin's «psychical dust» and subsequent «complexification» theory) that psychicalized cells can be transformed into my awareness of myself.

As a medical professional, one would think you'd understand that biological evolution, much like general relativity, quantum mechanics, the germ theory of disease, cell theory, plate tectonic theory, etc is a scientific theory and should be taught in science class based on the preponderance of evidence that backs it.

The author of evolution did set the conditions for which his THEORY would not work — conditions that have now been met, with the advances in cell study.

That your body is made up of cells is a theory.

The theory of evolution is as widely accepted and as well supported as the germ theory of disease, cell theory, etc..

that which asks whether certain possible machine - like entities, such as DNA or the cell, can be viewed actually as machines; and that which discusses the nature of machines that are translations of nonmachine - like models or theories.

Cobb has already alluded to the applicability of this theory to exegeting Whitehead's organic cosmology, arguing that just as the human soul located in the brain may occupy both the empty space in the interstices and the regions occupied by many cells, analogously the region of God includes the regions comprising the standpoints of all contemporary occasions in the world.

Also there is evidence of molecular mechanisms in the cell membranes that can amplify small changes in the field to produce large changes in neural activity.13 On the other hand, earlier tests of Kohler's theory found that interference with electrical gradients over the cortex had no effect on behavioral measures (see note 11 for reference to these studies).

Solve for us the question of the reasonableness of athiesm, where you get something (big bang) from nothing — there must be a first cause of everything; explain implications of the anthropic principle and the wildly unprobablistic likelihood that our universe could even form in such a fashion as to be capable of sustaining life (which has, interestingly, your athiest heavy hitters (i.e. Dawkins, Schwartz, etc.) necessarily positing multiple universe theories to get around the near probablistic impossibility of all conditions be present at time of big bang for life to be possible without acknowledgement of a divine designing hand guiding the process); explain The probablistic impossibility of non-irreducibly complex basic cells (life) coming together spontaneously (DNA, cell membrane, etc), even the most basic, simple forms of life allowing for reproduction, metabolism, etc...

Heat and light, being modes of motion, «phosphorescence» and «incandescence» are phenomena to which consciousness has been likened by the production - theory: «As one sees a metallic rod, placed in a glowing furnace, gradually heat itself, and — as the undulations of the caloric grow more and more frequent — pass successively from the shades of bright red to dark red (sic), to white, and develope, as its temperature rises, heat and light, — so the living sensitive cells, in presence of the incitations that solicit them, exalt themselves progressively as to their most interior sensibility, enter into a phase of erethism, and at a certain number of vibrations, set free (dégagent) pain as a physiological expression of this same sensibility superheated to a red - white.»

Under Child's theory there is complete continuity from the reaction of the cell with its environment, which constitutes the primary metabolic gradient, and from the later reactions, by which the pattern of the developing embryo is laid down in accordance with the changing gradient pattern, to the intellectual processes by which the adult organism adjusts its relations to the outside world.

Just like cell theory and the theory of gravity.

Where to start with this one... For one those that believe Evolution and Big Bang Theory, you are really gonna believe that we once were simple one - celled or only a few celled organisms and through a series of mutations over millions of years that we are what we are today?

And let's remember that evolution, while it's a theory, is a theory about the beginning and the transformation of life based on things we have observed, namely that cells change and mutate and that those mutations can produce cells that are unique and new, and that it would follow that it's possible for molecules to form into single - celled organisms which mutate and combine into multi-cellular organisms which mutate, adapt, and grow over time into new forms of life.

============ CONCLUSIONS A. # 1 is an accepted scientific fact, by theists and atheists, importantly: it does not in and of itself describe how we got from initial proto - cell to current complexity B. # 2 has a severe flaw, as phyletic gradualism is dead, and punctuated equilibrium (the fossil record being characterized by new species appearing fully formed) is an accepted fact C. # 3 is the ONLY theory that has support from the fossil record

The Theory of Evolution only talks about how life evolved from the first single celled organism up till what we have today.

There is but one theory, known to me, that casts any positive light on the ability of brain cells to furnish us with feelings.

Cadwell cautions that such a strategy must await further evidence to confirm his theory that this trend in Paneth cell death occurs in people deficient in ATG16L1 who are, like his study mice, prone to higher risk of inflammatory disease and transplant rejection.

«In theory, we could model progression of the disease by reprogramming skin cells from patients at a range of ages, including before symptoms begin.

This ancient theory, recounted by Pliny the Elder, is one of the many bizarre early attempts to explain one of life's greatest mysteries — how a nearly uniform egg cell develops into an animal with dozens of types of cells, each in its proper place.

«In theory, conventional single - junction solar cells can only achieve an efficiency level of about 34 percent, but in practice they don't achieve that,» said study co-author Paul Braun, a professor of materials science at Illinois.

When we derive the consequences of a theory, we introduce new concepts and words for them, such as «protons,» «cells» and «stars,» because they're convenient.

But in some cases, the theory goes, leftover antibodies from the first illness can actually help the second infection invade cells, increasing the risk of severe dengue disease.

The researchers have now provided further evidence for this new theory by showing that the abnormal protein coded for this genetic disorder can be transmitted to normal animals by the injection of diseased cells into their brain.

What if proliferation is the norm for cells — and a very different theory of cancers» cause is waiting in the wings?

«Over the years, we've developed the theory of «sequential cytotoxicity,» which simply means you give an initial attack on the cancer cell and then you give a second chemical attack,» Dimmock said.

At the centre of the theory is the plausible, if unlikely, speculation that a direct forerunner of HIV contaminated monkey cells that were used to grow polio virus for the vaccines.

«In theory, then, in some of these conditions it should be possible for healthy donated stem cells to outcompete native cells, without exposing patients to the toxic effects of radiation or alkylating agents.»

In theory it is possible to transform either somatic cells (most cells of the body) or cells of the germline (such as sperm cells, ova, and their stem cell precursors).

The theory that cancer progression involves the acquisition by tumor cells of features similar to those of stem cells has gained strength in the scientific community.

What if proliferation is the norm for cells — and a very different theory of cancers» cause is waiting in the wings, ask Carlos Sonnenschein and Ana M. Soto

And according to a third theory, as organisms age they deteriorate and must spend more energy to repair cell damage — to the detriment of other essential physical functions.

The calling patterns of three million cell phone users support a theory that female relationships change with shifting biological priorities, suggesting that women drive the evolutionary fitness of humans

Blood formation was the first process for which scientists formulated and proved the theory that stem cells are the common origin that gives rise to various types of mature cells.

Information theory analysis of cell signaling reveals mechanisms for reliable cellular responses despite signal variability.

Researchers could, in theory, fix genetic malfunctions in the induced pluripotent stem cells derived from a patient and then grow small patches of completely healthy muscle.

In theory, if a single mutation popped up that caused immature neurons to undergo just one extra cycle of cell division, that could double the final size of the cortex.

But among its detailed descriptions of cell preparation, discursive descriptions of the issues around abortion, and the story of the discovery that normal cells have a finite lifespan, there is plenty of ammunition for those arguing with family or Facebook friends who have swallowed the conspiracy theories of the anti-vaccination community.

Starting with 2 - D structures formed using state - of - the - art methods in semiconductor manufacturing and carefully placed «Kirigami cuts,» the researchers created more than 50 different mostly closed 3 - D structures that, in theory, could contain cells or support advanced electronic or optoelectronic devices.

Shearer, who has pioneered this theory with Mario Clerici of the University of Milan, says that it is still unclear whether a strong cell - mediated response is behind the UCLA case.

Nevertheless, as Tobias says, it is still ``... a field beset with relatively few facts but many theories... The story of early hominid brains has to be read from carefully dated, well identified, fossilised calvariae, or from endocranial casts formed within them... Such materials confine the Hercule Poirot, who would read «the little grey cells» of fossil hominids, to statements about the size, shape and surface impressions... of ancient brains...» The other major limiting factor at the moment is the lack of suitable fossil skulls for such studies.

A group of traits common among domesticated animals may arise when a wandering group of multitasking embryonic cells lose their way, a new theory of domestication proposes.

Recent evidence challenges long - held theories of how cells turn malignant — and suggests new ways to stop tumors before they spread