04285nam 2201153z- 450 9910367746203321202102113-03921-723-2(CKB)4100000010106255(oapen)https://directory.doabooks.org/handle/20.500.12854/56705(oapen)doab56705(EXLCZ)99410000001010625520202102d2019 |y 0engurmn|---annantxtrdacontentcrdamediacrrdacarrierPossible Scenarios for Homochirality on EarthMDPI - Multidisciplinary Digital Publishing Institute20191 online resource (318 p.)3-03921-722-4 In 1978, Fred Hoyle proposed that interstellar comets carrying several viruses landed on Earth as part of the panspermia hypotheses. With respect to life, the origin of homochirality on Earth has been the greatest mystery because life cannot exist without molecular asymmetry. Many scientists have proposed several possible hypotheses to answer this long-standing L-D question. Previously, Martin Gardner raised the question about mirror symmetry and broken mirror symmetry in terms of the homochirality question in his monographs (1964 and 1990). Possible scenarios for the L-D issue can be categorized into (i) Earth and exoterrestrial origins, (ii) by-chance and necessity mechanisms, and (iii) mirror-symmetrical and non-mirror-symmetrical forces as physical and chemical origins. These scenarios should involve further great amplification mechanisms, enabling a pure L- or D-world.?-strandabsolute asymmetric synthesisachiral stationary phaseamino acid handednessamino acidsassembliesasymmetric autocatalysisasymmetric reactionasymmetric synthesisautocatalysisbiological homochiralitybioorganic homochiralityC1- and C2-symmetric catalystschiral field (memory)chiral separationchiralitychirogenesiscircular dichroismcircularly polarized lightcircularly polarized luminescencecircularly polarized photonderacemizationenantiomer self-disproportionationenantiomorphismenantioselective reactionenvironmental chiralityetch figuresgenesis of life chiralitygravitationheat capacityhidden chiralityhigh dimensional chiralityhomochiral and heterochiral aggregateshomochiralitylipidmagmatic flowmagnetismmetal-organic frameworkmulti-point approximationnephelineneutrinosnucleus-molecular couplingorigin of lifeparity violationparity violation in the weak interactionplasma reactorpolymerprebioticprecision measurementracemateracemic fieldreplicatorsSalam hypothesisSDEself-assemblySoai reactionspin polarized electronsspin-polarized leptonsuper-high-velocity impactsupramolecular assemblysupramolecular chiralitysymmetry breakingtilt-chiralitytriethylenediamine (DABCO) moleculestunnelingtwo-fold helixViedma ripening effectvortexWallach's ruleweak neutral currentZ0 bosonFujiki Michiyaauth1324888BOOK9910367746203321Possible Scenarios for Homochirality on Earth3036443UNINA