Results 121 to 130 of about 76,623 (339)
Characterizing large scale base composition structures of genomes [PDF]
arXiv, 2004 Intermittent density fluctuations of nucleotide molecules (adenine, guanine, cytosine and thymine) along DNA sequences are studied in the framework of a hierarchical structure (HS) model originally proposed for the study of fully developed turbulence [She and Leque, Phys. Rev. Lett. 72}, 336 (1994)].
arxiv
Towards a natural system of organisms: proposal for the domains Archaea, Bacteria and Eucarya [PDF]
, 1990 openalex +1 more source
Towards Scalable Electroenzymatic Hydrogen Production with [FeFe]‐Hydrogenase
ChemElectroChem, EarlyView.The [FeFe]‐hydrogenase metalloenzyme is a promising biocatalyst for sustainable electrocatalytic hydrogen (H2) production, however important issues need to be addressed before this can happen. For future biotechnologies to be realized, the [FeFe]‐hydrogenase enzyme should be more oxygen resistant, be produced in viable quantities and ultimately ...
Sophie Webb, Ross D. Milton
wiley +1 more source
Biological methane production under putative Enceladus-like conditions
Nature Communications, 2018 Many methanogenic archaea use H2 and CO2 to produce methane. Here, Taubner et al. show that Methanothermococcus okinawensis produces methane under conditions extrapolated for Saturn’s icy moon, Enceladus, and estimate that serpentinization may produce ...
Ruth-Sophie Taubner +14 more
doaj +1 more source
Principles in the Evolution of Metabolic Networks [PDF]
arXiv, 2005 Understanding design principles of complex cellular organization is one of the major challenges in biology. Recent analysis of the large-scale cellular organization has revealed the scale-free nature and robustness of metabolic and protein networks.
arxiv
Hyperthermophilic Archaea and Bacteria Occurring within Indonesian Hydrothermal Areas [PDF]
, 1991 Gertrud Huber +7 more
openalex +1 more source
Chemistry – A European Journal, EarlyView.Branched glycerol dialkyl glycerol tetraethers (brGDGT's) are membrane‐spanning lipids produced by Acidobacteria, and used extensively in geochemistry as proxies. The first total synthesis of brGDGT Ia has been achieved, elucidating the relative stereochemical configuration of the methyl branches in the chain as syn.
Samarpita Mahapatra +5 more
wiley +1 more source
Microbial origin of excess greenhouse gases in glacial ice [PDF]
arXiv, 2005 We report the discovery of methanogenic archaea that account for abrupt factor 10 increases in methane concentration found by E. Brook at depths of 2954 and 3036 m in the GISP2 (Greenland Ice Sheet Project 2) ice core. The total microbial concentration we measured with direct cell counts tracks the excesses of methanogens that we identified by their ...
arxiv
Nucleotide sequences of 16S rRNA encoding genes from halophilic archaeaHalococcus morrhuaeNRC16008 andHaloferax mediterraneiATCC33500 [PDF]
, 1992 Masahiro Kamekura, Yukio Seno
openalex +1 more source
ChemPlusChem, EarlyView.Silica‐hyperbranched poly(ethylene imine) (PEI) xerogels incorporating silver nanoparticles coated titanium dioxide particles. Dual solvent dispersions of these composites enhance medical leathers′ hydrophilicity and antimicrobial properties. The nucleation of the metal ions into the dendritic polymer‘s cavities and the gel formation were inspired by ...
Theofanis Bompotis +12 more
wiley +1 more source