Results 11 to 20 of about 22,010 (59)

Scorzonera sensu lato (Asteraceae, Cichorieae) – taxonomic reassessment in the light of new molecular phylogenetic and carpological analyses [PDF]

open access: yes, 2020
Scorzonera comprises 180–190 species and belongs to the subtribe Scorzonerinae. Its circumscription has long been the subject of debate and available molecular phylogenetic analyses affirmed the polyphyly of Scorzonera in its wide sense.
Jones, Katy   +6 more
core   +3 more sources

Uncovering the sources of DNA found on the Turin Shroud [PDF]

open access: yes, 2015
The Turin Shroud is traditionally considered to be the burial cloth in which the body of Jesus Christ was wrapped after his death approximately 2000 years ago.
Achilli, Alessandro   +4 more
core   +1 more source

Hybridization, polyploidy, and evolutionary transitions between monoecy and dioecy in Bryonia (Cucurbitaceae) [PDF]

open access: yes, 2008
Correns’s 1903 (Berichte der Deutschen Botanischen Gesellschaft 21: 133 – 147) crosses between a monoecious and a dioecious species of Bryonia revealed the simple Mendelian inheritance of dioecy and provided the first instance of an XY sex determination ...
Renner, Susanne S., Volz, Stefanie M.
core   +1 more source

Specifics about Specific Ion Adsorption from Heterodyne-Detected Second Harmonic Generation

open access: yes, 2019
Ion specific outcomes at aqueous interfaces remain among the most enigmatic phenomena in interfacial chemistry. Here, charged fused silica/water interfaces have been probed by homodyne- and heterodyne-detected (HD) second harmonic generation (SHG ...
Boamah, Mavis D.   +4 more
core   +2 more sources

CELLULAR AND MOLECULAR MECHANISMS OF BIOMINERALISATION IN A SILICIFYING HAPTOPHYTE PRYMNESIUM NEOLEPIS [PDF]

open access: yes, 2014
Full version unavailable due to 3rd party copyright restrictions.Haptophytes are renowned for the most prominent and biogeochemically important group of marine calcifiers: coccolithophores. The unexpected discovery of a unique, silicifying member of this
Durak, Grazyna
core   +1 more source

Circumscription and phylogeny of the Laurales [PDF]

open access: yes, 1999
The order Laurales comprises a few indisputed core constituents, namely Gomortegaceae, Hernandiaceae, Lauraceae, and Monimiaceae sensu lato, and an equal number of families that have recently been included in, or excluded from, the order, namely ...
Renner, Susanne S.
core   +1 more source

A Phylogenetic Analysis of the African Plant Genus Palisota (family Commelinaceae) based on Chloroplast DNA Sequences [PDF]

open access: yes, 2011
The plant genus Palisota (family Commelinaceae, or spiderwort family) consists of approximately 20 species and is distributed throughout the forests of tropical Africa.
Evans, Timothy M.   +2 more
core   +1 more source

The 85$Rb(p,n)85Sr reaction and the modified proton optical potential [PDF]

open access: yes, 2008
The cross sections of the astrophysically relevant 85$Rb(p,n)85Srg,m reaction have been measured between Ec.m. = 2.16 and 3.96 MeV. The cross sections have been derived by measuring the gamma radiation following the beta decay of the reaction products. A
A. Simon   +9 more
core   +2 more sources

Ground state properties of heavy alkali halides

open access: yes, 1998
We extend previous work on alkali halides by calculations for the heavy-atom species RbF, RbCl, LiBr, NaBr, KBr, RbBr, LiI, NaI, KI, and RbI. Relativistic effects are included by means of energy-consistent pseudopotentials, correlations are treated at ...
A. Bergner   +18 more
core   +1 more source

Rate of lineage origin explains the diversity anomaly in the World’s mangrove vegetation [PDF]

open access: yes, 2006
The contribution of nonecological factors to global patterns in diversity is evident when species richness differs between regions with similar habitats and geographic area. Mangrove environments in the Eastern Hemisphere harbor six times as many species
Renner, Susanne S.   +2 more
core   +1 more source

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