1,614,293 research outputs found
Complexity of the Putting-Out-System in Toledo and its Jurisdiction (XVII-XVIII Centuries)
Certain differences between the historians exist on if the system of Putting-Out- System or Verlagssystem had major or minor incident in the labor - commercial relations of the industry of the Former Regime in Spain A few authors have exposed that rarely was giving himself the system e nglishman of a capitalist merchant who was advancing the raw material to the workers later to gather the finished product and to commercialize it Others incline to that his incident had a major weight in the industrial castilian development We with this article we want to expose the complexity that is given in the relations of the world of the textile industry in Toledo according to the existing writings of obligation in the notarial protocols in the Historical Provincial File of Toledo We affirm that this system was very usual in the silk and wool industry of Toledo with the exception of which regarding the silk industry almost production did not exist in the rural area but it was concentrating practically in the own city while the wool one had major incident in the nearby people
Biogenesis of cytochrome c1
The biogenesis of cytochrome c1 involves a number of steps including: synthesis as a precursor with a bipartite signal sequence, transfer across the outer and inner mitochondrial membranes, removal of the first part of the presequence in the matrix, reexport to the outer surface of the inner membrane, covalent addition of heme, and removal of the remainder of the presequence. In this report we have focused on the steps of heme addition, catalyzed by cytochrome c1 heme lyase, and of proteolytic processing during cytochrome c1 import into mitochondria. Following translocation from the matrix side to the intermembrane-space side of the inner membrane, apocytochrome c1 forms a complex with cytochrome c1 heme lyase, and then holocytochrome c1 formation occurs. Holocytochrome c1 formation can also be observed in detergent-solubilized preparations of mitochondria, but only after apocytochrome c1 has first interacted with cytochrome c1 heme lyase to produce this complex. Heme linkage takes place on the intermembrane- space side of the inner mitochondrial membrane and is dependent on NADH plus a cytosolic cofactor that can be replaced by flavin nucleotides. NADH and FMN appear to be necessary for reduction of heme prior to its linkage to apocytochrome c1. The second proteolytic processing of cytochrome c1 does not take place unless the covalent linkage of heme to apocytochrome c1 precedes it. On the other hand, the cytochrome c1 heme lyase reaction itself does not require that processing of the cytochrome c1 precursor to intermediate size cytochrome c1 takes place first. In conclusion, cytochrome c1 heme lyase catalyzes an essential step in the import pathway of cytochrome c1, but it is not involved in the transmembrane movement of the precursor polypeptide. This is in contrast to the case for cytochrome c in which heme addition is coupled to its transport directly across the outer membrane into the intermembrane space
Long-distant contribution and radiative decays to light vector meson
The discrepancy between the PQCD calculation and the CLEO data for
() stimulates our interest in
exploring extra mechanism of decay. In this work, we apply an
important non-perturbative QCD effect, i.e., hadronic loop mechanism, to study
radiative decay. Our numerical result shows that the
theoretical results including the hadronic loop contribution and the PQCD
calculation of are consistent with the corresponding
CLEO data of . We expect further experimental
measurement of at BES-III, which will be helpful to
test the hadronic loop effect on decay.Comment: 7 pages, 2 figures. Accepted for publication in Eur. Phys. J.
Towards an efficient prover for the C1 paraconsistent logic
The KE inference system is a tableau method developed by Marco Mondadori
which was presented as an improvement, in the computational efficiency sense,
over Analytic Tableaux. In the literature, there is no description of a theorem
prover based on the KE method for the C1 paraconsistent logic. Paraconsistent
logics have several applications, such as in robot control and medicine. These
applications could benefit from the existence of such a prover. We present a
sound and complete KE system for C1, an informal specification of a strategy
for the C1 prover as well as problem families that can be used to evaluate
provers for C1. The C1 KE system and the strategy described in this paper will
be used to implement a KE based prover for C1, which will be useful for those
who study and apply paraconsistent logics.Comment: 16 page
Magnetic Moment of the , and
The magnetic moment of the , and vanish
when the charm quark mass is taken to infinity because the light degrees of
freedom are in a spin zero configuration. The heavy quark spin-symmetry
violating contribution from the light degrees of freedom starts at order
, the same order as the contribution from the heavy charm quark. We
compute the leading long-distance contribution to the magnetic moments from the
spin-symmetry breaking mass splitting in chiral
perturbation theory. These are nonanalytic in the pion mass and arise from
calculable one-loop graphs. Further, the difference between the magnetic
moments of the charged charmed baryons is independent of the charm quark mass
and of the subleading local counterterm.Comment: 10 pages, 1 uuencoded figure included, uses harvmac and epsf, CMU-HEP
94-0
Study of radiative decays into a vector meson
The decays () are studied with
a sample of radiative \psip\to\gamma\chi_{cJ} events in a sample of
(1.06\pm0.04)\times 10^{8} \psip events collected with the BESIII detector.
The branching fractions are determined to be: , , and . The decay is observed for the first time. Upper limits at the 90% confidence
level on the branching fractions for and \chict decays into these
final states are determined. In addition, the fractions of the transverse
polarization component of the vector meson in decays
are measured to be for , for , and for , respectively. The first errors are statistical and the second
ones are systematic.Comment: 8 pages, 3 figure
Pentaquarks from intrinsic charms in decays
We study the three-body decays of with
and . The two new states and observed recently as
the resonances in the invariant mass spectrum of can be identified to consist of five quarks, , being
consistent with the existence of the pentaquark states. We argue that, in the
doubly charmful decays of through , apart from those through the non-resonant and
resonant transitions, the third contribution
with the non-factorizable effects is not the dominant part for the resonant
processes,
such that we propose that the productions are mainly from
the charmless decays through , in which the content in arises from the intrinsic charms within the
baryon. We hence predict the observables related to the branching
ratios and the direct CP violating asymmetries to be , , and , which can alleviate the
inconsistency between the theoretical expectations from the three contributions
in the doubly charmful decays and the observed data.Comment: 10 pages, 2 figures, revised version accepted by PL
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