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  • Male  (3)
  • Chemistry  (2)
  • Analytical Chemistry and Spectroscopy
  • SPACE SCIENCES
  • American Association for the Advancement of Science (AAAS)  (5)
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  • 1
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    Unlocking P(V): Reagents for chiral phosphorothioate synthesis (2018)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2018-09-21
    Description: Phosphorothioate nucleotides have emerged as powerful pharmacological substitutes of their native phosphodiester analogs with important translational applications in antisense oligonucleotide (ASO) therapeutics and cyclic dinucleotide (CDN) synthesis. Stereocontrolled installation of this chiral motif has long been hampered by the systemic use of phosphorus(III) [P(III)]–based reagent systems as the sole practical means of oligonucleotide assembly. A fundamentally different approach is described herein: the invention of a P(V)-based reagent platform for programmable, traceless, diastereoselective phosphorus-sulfur incorporation. The power of this reagent system is demonstrated through the robust and stereocontrolled synthesis of various nucleotidic architectures, including ASOs and CDNs, via an efficient, inexpensive, and operationally simple protocol.
    Keywords: Chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , 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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    Queen pheromone blocks aversive learning in young worker bees (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-07-21
    Description: Queen mandibular pheromone (QMP) has profound effects on dopamine signaling in the brain of young worker honey bees. As dopamine in insects has been strongly implicated in aversive learning, we examined QMP's impact on associative olfactory learning in bees. We found that QMP blocks aversive learning in young workers, but leaves appetitive learning intact. We postulate that QMP's effects on aversive learning enhance the likelihood that young workers remain in close contact with their queen by preventing them from forming an aversion to their mother's pheromone bouquet. The results provide an interesting twist to a story of success and survival.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vergoz, Vanina -- Schreurs, Haley A -- Mercer, Alison R -- New York, N.Y. -- Science. 2007 Jul 20;317(5836):384-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, University of Otago, Dunedin, New Zealand.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17641204" target="_blank"〉PubMed〈/a〉
    Keywords: 3-Methoxy-4-hydroxyphenylethanol/pharmacology ; Animals ; Bees/*physiology ; Behavior, Animal/drug effects ; Brain/physiology ; Conditioning (Psychology) ; Cues ; Dopamine/physiology ; Female ; *Learning/drug effects ; Male ; Odors ; Pheromones/chemistry/pharmacology/*physiology ; Reinforcement (Psychology) ; Social Behavior ; Sucrose
    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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  • 3
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    Martial arts research: weak evidence (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-10-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mercer, Jean -- New York, N.Y. -- Science. 2011 Oct 21;334(6054):310-1; author reply 311. doi: 10.1126/science.334.6054.310-c.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22021838" target="_blank"〉PubMed〈/a〉
    Keywords: *Executive Function ; Female ; Humans ; Male
    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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  • 4
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    Parenting: section deserves a scolding (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-09-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mercer, Jean -- New York, N.Y. -- Science. 2014 Sep 26;345(6204):1571. doi: 10.1126/science.345.6204.1571-b.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Richard Stockton College, Galloway, NJ 08205, USA. jean.mercer@stockton.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25258071" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*physiology ; *Child Abuse ; *Child Development ; *Child, Institutionalized ; *Child, Orphaned ; Female ; *Foster Home Care ; Humans ; Male ; Maternal Behavior/*physiology ; *Parenting ; Paternal Behavior/*physiology ; *Social Change
    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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  • 5
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    Mechanochemical unzipping of insulating polyladderene to semiconducting polyacetylene (2017)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2017-08-04
    Description: Biological systems sense and respond to mechanical stimuli in a complex manner. In an effort to develop synthetic materials that transduce mechanical force into multifold changes in their intrinsic properties, we report on a mechanochemically responsive nonconjugated polymer that converts to a conjugated polymer via an extensive rearrangement of the macromolecular structure in response to force. Our design is based on the facile mechanochemical unzipping of polyladderene, a polymer inspired by a lipid natural product structure and prepared via direct metathesis polymerization. The resultant polyacetylene block copolymers exhibit long conjugation length and uniform trans-configuration and self-assemble into semiconducting nanowires. Calculations support a tandem unzipping mechanism of the ladderene units.
    Keywords: Chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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