910 research outputs found
Diphoton plus production at the ILC at
Precision measurement for the production of a -boson in association with
two photons is important for investigating the Higgs boson and exploring new
physics at the International Linear Collider. It could be used to study the
anomalous quartic gauge coupling. In this work we report on
our calculation of the full contributions to the process in the standard model, and we analyze the
electroweak (EW) quantum effects on the total cross section. We investigate the
dependence of the production rate on the event selection scheme
and provide distributions for some important kinematic observables. We find
that the next-to-leading order (NLO) EW corrections can enhance the total cross
section quantitatively from to when the colliding energy goes
up from to , and the NLO EW corrections show obviously a non
trivial phase space dependence. We conclude that in studying the signal process
, the background process can be suppressed significantly if we take appropriate kinematic
cuts on the final products.Comment: 18 pages, 10 figure
MiR-574-5p alleviates sepsis-induced acute lung injury by regulating TRAF6/NF-κB pathway
Purpose: To investigate the protective effect of miR-574-5p pretreatment against acute lung injury (ALI) induced by sepsis.Methods: A male C57BL/6 mouse model of sepsis-induced ALI was established by cecal ligation and puncture (CLP) and treated with miR-574-5p agomir (intravenous injection, 80 mg/kg per day, 3 days). After that, blood and lung samples were obtained for histopathological observation. Myeloperoxidase (MPO) activity, inflammatory cell infiltration, and cytokine expression were analyzed. The target gene of miR-574-5p was predicted using TargetScan prediction, and verified by luciferase assay and western blot.Results: In sepsis-induced ALI mice model, downregulation of miR-574-5p was observed. Pretreatment of miR-574-5p significantly alleviated ALI by suppressing histological damage, and reducing MPO activity and inflammatory cell infiltration, as well as decreasing cytokine expression. The underlying mechanism was that miR-574-5p targeted TNF receptor associated factor 6 (TRAF6) and suppressed the downstream NF-κB pathway. Moreover, TRAF6 overexpression reversed the effects of miR-574-5p on ALI.Conclusion: MiR-574-5p pretreatment suppresses inflammatory responses, thus reducing lung injury induced by sepsis in mice, partly via the regulation of TRAF6 and NF-κB pathway. Therefore, this approach can potentially be used for the clinical management of ALI in humans
Keywords: Sepsis, Acute lung injury, MiR-574-5p, TRAF6, NF-κB pathwa
Comparison Analysis of Dust-Depressor Using Microbial Induced Carbonate Precipitation with Urease Reagent
The dust-depressors have been developed utilizing a method of microbial induced carbonate precipitation. This microbial dust-depressor has the characteristics of high efficiency for dust suppression and environmental protection. Optimal compositions of urease dust-depressor and microbial dust-depressor have been studied. In addition, pure water, CaCl2 and super absorbent polymer are chosen to compare with new dust-depressors on the performances. The results showed that the microbial dust-depressor had 3.13 mm/min of seepage velocity and 79.1% of dust suppression efficiency, which were superior to other dust-depressors on the performance of seepage velocity and dust suppression efficiency
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