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  • Digestive System/cytology/*embryology/innervation/metabolism  (1)
  • Evolution, Planetary  (1)
  • American Association for the Advancement of Science (AAAS)  (2)
  • 1
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    Dissociation of CH4 at high pressures and temperatures: diamond formation in giant planet interiors? (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-03
    Description: Experiments using laser-heated diamond anvil cells show that methane (CH4) breaks down to form diamond at pressures between 10 and 50 gigapascals and temperatures of about 2000 to 3000 kelvin. Infrared absorption and Raman spectroscopy, along with x-ray diffraction, indicate the presence of polymeric hydrocarbons in addition to the diamond, which is in agreement with theoretical predictions. Dissociation of CH4 at high pressures and temperatures can influence the energy budgets of planets containing substantial amounts of CH4, water, and ammonia, such as Uranus and Neptune.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Benedetti, L R -- Nguyen, J H -- Caldwell, W A -- Liu, H -- Kruger, M -- Jeanloz, R -- New York, N.Y. -- Science. 1999 Oct 1;286(5437):100-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physics, Department of Geology and Geophysics, University of California, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10506552" target="_blank"〉PubMed〈/a〉
    Keywords: Diamond/*chemistry ; Evolution, Planetary ; Hot Temperature ; Hydrocarbons/chemistry ; Methane/*chemistry ; *Neptune ; Pressure ; Spectroscopy, Fourier Transform Infrared ; Spectrum Analysis, Raman ; *Uranus ; X-Ray Diffraction
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Hirschsprung disease is linked to defects in neural crest stem cell function (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-08-16
    Description: Genes associated with Hirschsprung disease, a failure to form enteric ganglia in the hindgut, were highly up-regulated in gut neural crest stem cells relative to whole-fetus RNA. One of these genes, the glial cell line-derived neurotrophic factor (GDNF) receptor Ret, was necessary for neural crest stem cell migration in the gut. GDNF promoted the migration of neural crest stem cells in culture but did not affect their survival or proliferation. Gene expression profiling, combined with reverse genetics and analyses of stem cell function, suggests that Hirschsprung disease is caused by defects in neural crest stem cell function.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2614078/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2614078/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Iwashita, Toshihide -- Kruger, Genevieve M -- Pardal, Ricardo -- Kiel, Mark J -- Morrison, Sean J -- CA46592/CA/NCI NIH HHS/ -- DK58771/DK/NIDDK NIH HHS/ -- NIH5P60-DK20572/DK/NIDDK NIH HHS/ -- P30 AR48310/AR/NIAMS NIH HHS/ -- P60-AR20557/AR/NIAMS NIH HHS/ -- R01 NS040750/NS/NINDS NIH HHS/ -- R01 NS040750-01/NS/NINDS NIH HHS/ -- R01 NS40750-01/NS/NINDS NIH HHS/ -- R21 HD40760-02/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2003 Aug 15;301(5635):972-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109-0934, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12920301" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; Cell Division ; Cell Movement ; Cell Separation ; Cell Survival ; Cells, Cultured ; Digestive System/cytology/*embryology/innervation/metabolism ; Fetus/metabolism ; Gene Expression Profiling ; *Gene Expression Regulation, Developmental ; Glial Cell Line-Derived Neurotrophic Factor ; Glial Cell Line-Derived Neurotrophic Factor Receptors ; Hirschsprung Disease/*etiology/genetics ; Mice ; Multipotent Stem Cells/*physiology ; Nerve Growth Factors/genetics/metabolism/pharmacology ; Neural Crest/*cytology/physiology ; Oligonucleotide Array Sequence Analysis ; Proto-Oncogene Proteins/*genetics/metabolism ; Proto-Oncogene Proteins c-ret ; Rats ; Rats, Sprague-Dawley ; Receptor Protein-Tyrosine Kinases/*genetics/metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Signal Transduction ; Up-Regulation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
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