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  • origin-of-l
  • This trend of bad luck continues for a collaborative team from the University of South Florida (USF) and the Georgia Institute of Technology (GT) who are seeking to identify a chemical process that could produce organic phosphates on early Earth, a necessary step in any origin-of-life scenario. (heavenforum.org)
  • Another problem origin-of-life researchers have identified with this chemical route relates to phosphates' solubility. (heavenforum.org)
  • Darwinian
  • 1 Such was professed by Eugenie Scott, the de facto head of the Darwin lobby, while speaking to the media in response to the Texas State Board of Education's 2009 vote to require students to learn about both the scientific evidence for and against neo-Darwinian evolution. (intelligentdesign.org)
  • This chapter will review some of this literature, and show that there are numerous legitimate scientific challenges to core tenets of Darwinian theory, as well as predominant theories of chemical evolution. (intelligentdesign.org)
  • 00:02:43.10 And of course, this is a consequence of the power of Darwinian evolution, 00:02:48.10 to lead to adaptations to diverse environments. (ibiology.org)
  • Earth's
  • In a short video clip, Newman explains how ancient rock formations provide insights into the critical role that photosynthesizing bacteria played in the evolution of the Earth's atmosphere and modern life. (ibiology.org)
  • Sciences
  • The research was funded by the McDonnell Foundation, the National Science Foundation's Materials Science Directorate, Emory University's Alzheimer's Disease Research Center, the National Science Foundation's Center for Chemical Evolution and the Office of Basic Energy Sciences of the U.S. Department of Energy. (blogspot.com)
  • scientists
  • Whenever you choke on acrid cigarette smoke, feel like you're burning up from a mouthful of wasabi-laced sushi, or cry while cutting raw onions and garlic, your response is being triggered by a primordial chemical sensor conserved across some 500 million years of animal evolution, report Brandeis scientists in a study in Nature this week. (brandeis.edu)
  • Studying the chemical sensors of Drosophila fruit flies, scientists discovered that flies use their ortholog of the human TRPA1 sensor for the same purpose. (brandeis.edu)
  • minerals
  • The chemical features of the columbite-group minerals and the low solubility of Ta in aqueous fluids, combined with the evidence for metasomatism at Yichun, suggest that the media from which the stage II crystals precipitated were hydrosilicate liquids, which have high concentrations of Si and Na, and approximately equimolar SiO 2 and H 2 O concentrations. (geoscienceworld.org)
  • features
  • We discovered that a new branch split off the tree at least 500 million years ago, and that this new branch, the TRPA1 branch, appeared to have had all the features needed for chemical sensing even back then," said Garrity. (brandeis.edu)
  • Textural and chemical features of the stage I crystals are consistent with a magmatic origin. (geoscienceworld.org)
  • The textural relationships and the chemical features suggest that lepidolite, albite, and the snowball quartz at Yichun are all metasomatic. (geoscienceworld.org)
  • 25 Another type of intriguing 2D material is coordination nanosheets (CONASHs), 26,27 which consist of metal complexes and can exhibit various unique physical and chemical features. (rsc.org)
  • physical
  • In the first paper we showed that you can create tension between a chemical and physical system to give rise to more complex systems. (blogspot.com)
  • early
  • Electrocatalytic voltammograms, which show the rate of electron flow at steady-state, provide direct information on enzyme efficiency with regard to optimising use of available energy, a factor that would have driven early evolution. (rsc.org)
  • different
  • They stained these slices with chemicals that react to different types of neurotransmitters, including dopamine, serotonin, and neuropeptide Y-which are associated with sensitivity to social cues and cooperative behavior. (kstateanthclub.com)
  • study
  • What the study, spearheaded by Kyeongjin Kang in my lab, shows, is that this chemical sense is nearly as ancient as vision," said Garrity. (brandeis.edu)
  • system
  • Since that time, it appears that most animals, including humans, have maintained this same ancient system for detecting reactive chemicals. (brandeis.edu)
  • found
  • The long-standing problem of achieving high activity of a thermophilic enzyme at low temperatures and short reaction times with little tradeoff in thermostability has been solved by directed evolution, an alcohol dehydrogenase found in hot springs serving as the catalyst in enantioselective ketone reductions. (rsc.org)
  • products
  • After running the experiments and letting the chemical products sit for a period of time, Miller discovered that amino acids - the building blocks of proteins - had been produced. (intelligentdesign.org)
  • courses
  • Students who take college-preparatory or college-level courses on evolution are warned that doubting Darwinism is tantamount to committing intellectual suicide - you might as well proclaim the Earth is flat. (intelligentdesign.org)