3,708 research outputs found

    Interpreting the 3 TeV WHWH Resonance as a WW' boson

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    Motivated by a local 3.23.43.2-3.4 sigma resonance in WHWH and ZHZH in the ATLAS Run 2 data, we attempt to interpret the excess in terms of a WW' boson in a SU(2)1×SU(2)2×U(1)XSU(2)_1 \times SU(2)_2 \times U(1)_X model. We stretch the deviation from the alignment limit of the Equivalence Theorem, so as to maximize WHWH production while keeping the WZWZ production rate below the experimental limit. We found a viable though small region of parameter space that satisfies all existing constraints on Wjj,tbˉ,WZW' \to jj, t \bar b, WZ, as well as the precision Higgs data. The cross section of WWHW' \to WH that we obtain is about 565-6 fb.Comment: 14 pages, 2 figure

    Research on the Talent Training Mode of Business English Based on University-Industry Collaboration

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    With the in-depth implementation of China’s free trade port construction, the demand for business English professionals is growing. However, graduates who only have language skills cannot meet the needs of enterprises, and the current business English talent training model needs to be updated. Meanwhile, there are some problems such as the outdated teaching content of business English and the weak teaching staff. This paper puts forward the discussion of the university- industry cooperation mode. First, it clarifies the professional orientation and enterprises’ needs. College teachers and enterprise tutors cooperate deeply, and then improve the teaching content, build a curriculum system integrating theory and practice. It puts forward four cooperation modules, which are research and innovation, technology transfer, providing expert consulting services, and product commercialization

    Controlled Levofloxacin Release and Antibacterial Properties of β-Cyclodextrins-Grafted Polypropylene Mesh Devices for Hernia Repair.

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    Mesh infection is a major complication of hernia repair. After knitted mesh implantation, bacteria can grow within textile structures causing infection. In this work, polypropylene (PP) mesh devices were two-step grafted with hexamethylene diisocyanate (HDI) and β⁻cyclodexrins (CD) and then loaded with suitable antimicrobial levofloxacin HCL for hernia mesh-infection prevention. First, oxygen plasma was able to create surface roughness, then HDI was successfully grafted onto PP fiber surfaces. Afterwards, CD was covalently grafted onto the HDI treated PP meshes, and levofloxacin HCL (LVFX) was loaded into the CD cavity of the modified meshes. The modified devices were evaluated for sustained antibiotic properties and drug-release profiles in a phosphate buffer, and sustained drug release was observed between interfaces of meshes and aqueous environment. The antibiotic-loaded PP mesh samples demonstrated sustained antibacterial properties for 7 and 10 days, respectively, against both Gram-negative and Gram-positive bacteria. The CD-captured levofloxacin HCL showed burst release after 6 h but later exhibited sustained release for the next 48 h. Among all samples, the modified mesh LVFX-6 was more stable and showed more sustained drug release and could be employed in future clinical applications
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