1,294 research outputs found
Peraturan Pemerintah (PP) tentang Tunjangan Profesi untuk guru dan Dosen
Peraturan Pemerintah (PP) 41/2009 tentang Tunjangan Profesi untuk guru dan Dose
New result on the measurement of the direct photon emission in K+ --> pi^+ pi^0 gamma decay
We present a new result on the K^+ --> pi^+ pi^0 gamma decay measurement
using stopped kaons. The best fit to the decay spectrum comprised of 10k events
gives a branching ratio for the direct photon emission of
[3.8+-0.8(stat)+-0.7(syst)] times 10^{-6} in the pi^+ kinetic energy region of
55 to 90 MeV. This result has been obtained with the assumption that there is
no component due to interference with the inner bremsstrahlung.Comment: 14 pages, 7 figures, 3 tables (Fig.1 which had problems with
uploading first time is replaced. Besides introduction is changed to bring
into accordance with the version published in Eur.Phys.J.C.
Electron Scattering on 3He - a Playground to Test Nuclear Dynamics
The big spectrum of electron induced processes on 3He is illustrated by
several examples based on Faddeev calculations with modern nucleon-nucleon and
three-nucleon forces as well as exchange currents. The kinematical region is
restricted to a mostly nonrelativistic one where the three-nucleon c.m. energy
is below the pion production threshold and the three-momentum of the virtual
photon is sufficiently below the nucleon mass. Comparisons with available data
are shown and cases of agreement and disagreement are found. It is argued that
new and precise data are needed to systematically check the present day
dynamical ingredients.Comment: 27 pages, 24 figure
THE DIFFERENTIAL EXPRESSION PATTERNS OF MESSENGER RNAs ENCODING NOGO-A AND NOGO-RECEPTOR IN THE RAT CENTRAL NERVOUS SYSTEM
Nogo-A and Nogo-receptor have been considered to play pivotal roles in
controlling axonal regeneration and neuronal plasticity. We investigated the
total distribution of Nogo-A and Nogo-receptor mRNAs in the adult rat
central nervous system using in situ hybridization histochemistry. Nogo-A is
abundantly expressed in both neurons and oligodendrocytes throughout the
central nervous system. Interestingly, we could not find any neurons which
lack Nogo-A mRNA expression, indicating that Nogo-A mRNA is
universally expressed in all neurons. In contrast, Nogo-R mRNA expression
was very restricted. Nogo-R mRNA was expressed in the olfactory bulb,
hippocampus, tentia tecta, some amygdala nuclei, cerebral cortex, some
thalamic nuclei, medial habenular, whereas we could not detect it in the
other regions. Interestingly, we did not detect Nogo-R mRNA in
monoaminergic neurons, which are known to have high regenerative
capacity, in the substantia nigra, ventral tegmental area, locus caeruleus, and
raphe nuclei. In addition, although neurons in the reticular thalamus and
cerebellar nuclei are also known to show high capacity for regeneration,
Nogo-R mRNA was not detected there. These data indicate that Nogo-A and
Nogo-R mRNAs were differentially expressed in the central nervous system,
and suggest that the lack of Nogo-R expression in a given neuron might be
necessary to keep its high regenerative capacity
41 Feasts
Hi, I\u27m Nicola and thank you for reading my blog. I have been cooking for friends and family for many years but this is my first step into writing about it. My husband is an experienced food taster and pot washer; our daughter Jessica loves to mix, beat and stir
DNA Renaturation at the Water-Phenol Interface
We study DNA adsorption and renaturation in a water-phenol two-phase system,
with or without shaking. In very dilute solutions, single-stranded DNA is
adsorbed at the interface in a salt-dependent manner. At high salt
concentrations the adsorption is irreversible. The adsorption of the
single-stranded DNA is specific to phenol and relies on stacking and hydrogen
bonding. We establish the interfacial nature of a DNA renaturation at a high
salt concentration. In the absence of shaking, this reaction involves an
efficient surface diffusion of the single-stranded DNA chains. In the presence
of a vigorous shaking, the bimolecular rate of the reaction exceeds the
Smoluchowski limit for a three-dimensional diffusion-controlled reaction. DNA
renaturation in these conditions is known as the Phenol Emulsion Reassociation
Technique or PERT. Our results establish the interfacial nature of PERT. A
comparison of this interfacial reaction with other approaches shows that PERT
is the most efficient technique and reveals similarities between PERT and the
renaturation performed by single-stranded nucleic acid binding proteins. Our
results lead to a better understanding of the partitioning of nucleic acids in
two-phase systems, and should help design improved extraction procedures for
damaged nucleic acids. We present arguments in favor of a role of phenol and
water-phenol interface in prebiotic chemistry. The most efficient renaturation
reactions (in the presence of condensing agents or with PERT) occur in
heterogeneous systems. This reveals the limitations of homogeneous approaches
to the biochemistry of nucleic acids. We propose a heterogeneous approach to
overcome the limitations of the homogeneous viewpoint
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