404 research outputs found
Constraints on split-UED from Electroweak Precision Tests
We present strongly improved electroweak precision constraints on the
split-UED model. We find that the dominating effect arises from contributions
to the muon decay rate by the exchange of even-numbered W-boson Kaluza-Klein
modes at tree-level, which so far have not been discussed in the context of UED
models. The constraints on the split-UED parameter space are translated into
bounds on the mass difference of the first Kaluza-Klein mode of fermions and
the lightest Kaluza-Klein mode, which will be tested is the LHC.Comment: 4 pages, 2 figure
Factors influencing flood-related coping appraisal Among homeowners and residents in Kampala, Uganda
Urban induced-displacement of informal settlement dwellers:A comparison of affected households' and planning officials’ preferences for resettlement site attributes in Kigali, Rwanda
Constraints on UED from W' searches
We obtain contraints on three Universal Extra Dimensional models utilizing
limits from the CMS Collaboration on W' production and decay into a
single-top-quark final state. We find a weak constraint on the Minimal
Universal Extra Dimensions model due to small Kaluza-Klein number violating
terms. In contrast, the W' search puts a strong limit on the size of the Dirac
mass term of the quarks in Split Universal Extra Dimension models. In
Non-minimal Universal Extra Dimension models the W' search constrains the
splitting between the boundary localized kinetic terms of the gauge bosons and
the quarks. Each of these bounds can be translated into constraints on the mass
splitting between the Kaluza-Klein excitations of the SU(2) charged quarks and
the Klauza-Klein excitations of the W boson.Comment: 7 pages, 5 figures; Updated Draft and Figure
Assessing urban heat-related adaptation strategies under multiple futures for a major U.S. city
The activity of cAMP-Phosphodiesterase 4D7 (PDE4D7) is regulated by protein kinase A-dependent phosphorylation within its unique N-terminus
The cyclic AMP phosphodiesterases type 4 (PDE4s) are expressed in a cell specific manner, with intracellular targeting directed by unique N-terminal anchor domains. All long form PDE4s are phosphorylated and activated by PKA phosphorylation within their upstream conserved region 1 (UCR1). Here, we identify and characterise a novel PKA site (serine 42) within the N-terminal region of PDE4D7, an isoform whose activity is known to be important in prostate cancer progression and ischemic stroke. In contrast to the UCR1 site, PKA phosphorylation of the PDE4D7 N-terminus appears to occur constitutively and inhibits PDE4 activity to allow cAMP signalling under basal conditions
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