Sentences with phrase «by early precursors»

According to Prof. Holstein, the leading hypothesis assumes that they originated from organelles of similar construction and function in unicellular organisms that were absorbed as symbionts by early precursors of cnidarians.

Not exact matches

In the classical picture, nucleation is considered to take place in a solution of ions that has become supersaturated, leading to the nucleation of the solid phase by stochastic solute clustering, and the earliest crystal precursor is considered to be a cluster of critical size (14, 15).

In 2015, chemists from Cambridge University, led by John Sutherland, who is a co-author on the current study, discovered a way to synthesize the precursors to RNA using just hydrogen cyanide, hydrogen sulfide, and ultraviolet light — all ingredients that are thought to have been available on early Earth, before the appearance of the first life forms.

Conventional wisdom holds that the precursors of modern placental and marsupial mammals arose toward the end of the Jurassic in the Northern Hemisphere, based on the ages and locations of the earliest remains of these shrewlike creatures, which are characterized by so - called tribosphenic molars.

Earlier dating work by Lepre and Kent helped lead to another landmark paper in 2011: a study that suggested Homo erectus, another precursor to modern humans, was using more advanced tool - making methods 1.8 million years ago, at least 300,000 years earlier than previously tEarlier dating work by Lepre and Kent helped lead to another landmark paper in 2011: a study that suggested Homo erectus, another precursor to modern humans, was using more advanced tool - making methods 1.8 million years ago, at least 300,000 years earlier than previously tearlier than previously thought.

In late autumn and early winter months, ozone precursors are transported by northerly winter monsoon winds to the South Coast and react under favourable meteorological conditions to form ozone, leading to an ozone maximum in November in Hong Kong.

By characterizing mutations from secondary AML tumors in the MDS precursors for the same patient, the authors reconstructed the clonal architecture of the disease from early to advanced stages.

Scientists have shown how the precursors of egg and sperm cells — the cells that are key to the preservation of a species — arise in the early embryo by studying pig embryos alongside human stem cells.

We depict an early PrEn precursor cell defined by the V+S + phenotype in light yellow, expressing low levels of PrEn determinants such as Hex and Gata6.

In a study published earlier this year, the same Belmonte and Gage lab team demonstrated that a few ES cells in a culture dish tended to lose stemness and evolve into muscle cell precursors, most likely goaded by a muscle differentiation factor known as BMP.

The first act begins with this framing story leading into Pi's early life, all of which serves as a precursor to the bulk of the film that is covered by act two.

It's one of Joe Eszterhas's (Basic Instinct, Showgirls) early works, sort of a precursor to the increasingly steamier crime thrillers he would make throughout the 1990s, complete with sadomasochistic stabbings while tied up in bed, as well as one of his main themes surrounding a normally good and law - abiding person being seduced by the allure of someone accused of heinous and unsavory acts.

To conduct this study, we teamed up with Education First, a consulting firm founded by standards - reform veteran Jennifer Vranek, who a decade earlier had herself launched Achieve's American Diploma Project — which is often viewed as the precursor to the Common Core standards.

Organized by guest curator Gregory Volk, Michelle Stuart, Theatre of Memory: Photographic Works consists of twelve recent large - scale works — including a major wall piece created specifically for this exhibition — as well as two important pieces from the early 1980s that can be seen as precursors to Stuart's later direction.

Also mentioned in the interview is zero growth, put forward by the Club of Rome in the late 60's / early 70's, which called for the control of population and economic growth, and was the precursor to what we see happening today with the US economy and infrastructure being gutted and sent overseas.

As explained in far greater detail by Dr. Bill Long on his site than I could ever include here, one of the earliest American jurisprudence precursors to our modern ethical rules was a work by Professor David Hoffman of the University of Maryland.

The startup, which was created by Bedkin, has raised funding from early stage investment firm Precursor Ventures and will launch the protocol publicly next month.