Results 31 to 40 of about 52,036 (144)

Recent advances in experimental techniques to probe fast excited-state dynamics in biological molecules in the gas phase : dynamics in nucleotides, amino acids and beyond [PDF]

open access: yes, 2013
In many chemical reactions, an activation barrier must be overcome before a chemical transformation can occur. As such, understanding the behaviour of molecules in energetically excited states is critical to understanding the chemical changes that these ...
Hadden DJ   +6 more
core   +1 more source

Proton Availability at the Air/Water Interface [PDF]

open access: yes, 2010
The acidity of the water surface sensed by a colliding gas is determined in experiments in which the protonation of gaseous trimethylamine (TMA) on aqueous microjets is monitored by online electrospray mass spectrometry as a function of the pH of the ...
Colussi, A. J.   +2 more
core   +2 more sources

The Environmental Seismic Intensity Scale (ESI 2007) in Greece, addition of new events and its relationship with magnitude in Greece and the Mediterranean; preliminary attenuation relationships

open access: yesQuaternary International, 2017
Abstract The Environmental Seismic Intensity (ESI) scale has been officially released in 2007 and is based on the quantification of Earthquake Environmental Effects. Due to its quantitative nature, the scale improves the process of assessing macroseismic intensities, particularly in the epicentral area of those cases in which sole traditional ...
Ioannis Papanikolaou, Maria Melaki
openaire   +2 more sources

Mass Spectrometric Characterization of Oligomers in Pseudomonas aeruginosa Azurin Solutions [PDF]

open access: yes, 2011
We have employed laser-induced liquid bead ion desorption mass spectroscopy (LILBID MS) to study the solution behavior of Pseudomonas aeruginosa azurin as well as two mutants and corresponding Re-labeled derivatives containing a Re(CO)_(3)(4,7-dimethyl-1,
Brutschy, Bernd   +6 more
core   +2 more sources

The 1688 Sannio–Matese Earthquake: A Dataset of Environmental Effects Based on the ESI-07 Scale

open access: yesData
The 1688 Sannio–Matese earthquake, with a macroseismically derived magnitude of Mw = 7 and an epicentral intensity of IMCS = XI, had a deep impact on Southern Italy, causing thousands of casualties, extensive damage and significant environmental effects (
Angelica Capozzoli   +4 more
doaj   +1 more source

Bioprocess Development for Lantibiotic Ruminococcin-A Production in Escherichia coli and Kinetic Insights Into LanM Enzymes Catalysis [PDF]

open access: yes, 2019
Ruminococcin-A (RumA) is a peptide antibiotic with post-translational modifications including thioether cross-links formed from non-canonical amino acids, called lanthionines, synthesized by a dedicated lanthionine-generating enzyme RumM.
Adrian, Lorenz   +5 more
core   +1 more source

Energy-filtered transmission electron microscopy of biological samples on highly transparent carbon nanomembranes

open access: yes, 2011
Ultrathin carbon nanomembranes (CNM) comprising crosslinked biphenyl precursors have been tested as support films for energy-filtered transmission electron microscopy (EFTEM) of biological specimens.
Beyer, André   +7 more
core   +1 more source

Temperature dependent NIR emitting lanthanide-PMO/silica hybrid materials [PDF]

open access: yes, 2017
Two materials - a mesoporous silica (MS) and a periodic mesoporous organosilica (PMO) functionalized with dipyridyl-pyridazine (dppz) units were grafted with near-infrared (NIR) emitting lanthanide (Nd3+, Er3+, Yb3+) complexes in an attempt to obtain ...
Esquivel, Dolores   +5 more
core   +2 more sources

Metabolic profiling of human plasma and urine in chronic kidney disease by hydrophilic interaction liquid chromatography coupled with time-of-flight mass spectrometry : a pilot study [PDF]

open access: yes, 2017
A typical characteristic of chronic kidney disease (CKD) is the progressive loss in renal function over a period of months or years with the concomitant accumulation of uremic retention solutes in the body.
Boelaert, Jente   +5 more
core   +1 more source

The 12 May 2008 Mw 7.9 Wenchuan, China, Earthquake: Macroseismic Intensity Assessment Using the EMS-98 and ESI 2007 Scales and Their Correlation with the Geological Structure

open access: yesBulletin of the Seismological Society of America, 2010
The Wenchuan earthquake of 12 May 2008 in Sichuan Province, China, can be classified as a large-scale event based on the tectonic structures that triggered the earthquake and the effects caused on the human, structural, and natural environment. This paper presents the geotectonic and seismotectonic regime of the earthquake-affected region on the basis
openaire   +2 more sources

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