Higgs searches at CMS

Results are summarized from searches for the standard model Higgs boson in pp collisions at sqrt(s) = 7 and 8 TeV in the CMS experiment at the LHC. The measurements of mass, cross section, and properties of the narrow resonance recently observed are presented. The searches beyond standard model Higgs boson, in the CMS experiment at the LHC, are highlighted.Comment: 14 pages, 15 figures, Proceedings of the PIC 2012, Strbske Pleso, Slovaki

Observability of the Heavy Neutral SUSY Higgs Bosons Decaying into Neutralinos

A prospective study for the observation of the decays of heavy neutral Higgs bosons into supersymmetric particles at the Large Hadron Collider is presented . The analysis focuses on the decay of the Higgs bosons into a pair of next-to-lightest neutralinos chi2, followed by the cascade down to the lightest neutralino, chi2 to l+ l- chi1. The final state is characterized by the presence of four isolated and missing tranverse energy. The parameter space of the minimal Supergravity model is explored and favorable regions for the observation of the A/H bosons are identified. The A/H bosons could be discovered in the 2e2mu channel in the mass region mA,H (250,400) GeV/c2 with an integrated luminosity of 30 fb-1

Observability of the heavy neutral SUSY Higgs bosons decaying into neutralinos at the LHC

Research Note From Collaboration; A prospective study for the observability of heavy neutral Higgs bosons decaying into supersymmetric particles at the Large Hadron Collider with the CMS detector is presented. The analysis focuses on the decay of the Higgs bosons into a pair of next-to-lightest neutralinos χ02, followed by the cascade down to the lightest neutralino, χ02 → l+l-χ01. The final state is characterized by the presence of four isolated leptons and missing transverse energy. The parameter space of the minimal supergravity model is explored and favourable regions for the observation of the A0/H0 bosons are identified. The A0/H0 bosons could be discovered in the 2e2μ channel in the mass region 250 lesssim mA/H lesssim 400 GeV/c2 with an integrated luminosity of 30 fb-1

Management of severe epistaxis during pregnancy: a case report and review of the literature

Epistaxis is a common problem during pregnancy. Few cases of severe epistaxis, not associated with nasal lesions or clotting disorders, were described in the literature. We reported a case of severe epistaxis in a pregnant patient, exploring all the different possible management options

Increased growth rate of anodic porous alumina by use of ionic liquid as electrolyte additive

The use of ionic liquids 1-Butyl-3-methylimidazolium 2-(2-methoxyethoxy) ethyl sulfate and 1-Butyl-3-methylimidazolium tetrafluoborate has been tested in the fabrication of anodic porous alumina. The anodizations of the aluminium substrate have been carried out in oxalic acid in galvanostatic mode. During anodization with 1-Butyl-3-methylimidazolium tetrafluoborate added electrolyte, proper tuning of the current density and of the additive concentration resulted in a three-fold increase of the growth rate as compared to the bare acidic solution with the same acid concentration. This did not cause cracks in the film during growth, and did not affect the regular structure of the pores at the interface with the substrate

ORGANIZATIONAL STRUCTURES TO SUPPORT INNOVATION: HOW DO COMPANIES DECIDE?

The purpose of this work is to discuss the issue of how companies aiming to increase their innovative capacity should decide about their organizational structure. To accomplish this goal, a bibliographic review about the theme was carried out, as well as an exploratory research, conducted by case study in a Brazilian petrochemical company that had recently re-organised its structure regarding innovative activities. The results suggest that the studied company decided upon its organisational structure without considering the whole process of innovation, focusing efforts only on the Research and Development area. Its organizational structure is still based on traditional forms, with centralized decisions and well demarcated functions. A more “adhocratic” structure, considering innovation as an integrated process would foster the company innovative capacity in the future.The purpose of this work is to discuss the issue of how companies aiming to increase their innovative capacity should decide about their organizational structure. To accomplish this goal, a bibliographic review about the theme was carried out, as well as an exploratory research, conducted by case study in a Brazilian petrochemical company that had recently re-organised its structure regarding innovative activities. The results suggest that the studied company decided upon its organisational structure without considering the whole process of innovation, focusing efforts only on the Research and Development area. Its organizational structure is still based on traditional forms, with centralized decisions and well demarcated functions. A more “adhocratic” structure, considering innovation as an integrated process would foster the company innovative capacity in the future

Prevalence and prevention of venous thromboembolism in patients with acute exacerbations of COPD

Abstract BACKGROUND: Little information exists on the prevalence and prevention of deep vein thrombosis (DVT) and pulmonary embolism (PE) in patients admitted for acute exacerbations of chronic obstructive pulmonary disease (COPD). OBJECTIVE: To review available literature, we performed a Medline search on papers published on this topic between 1966 and 2003. DATA SYNTHESIS: Pulmonary emboli have been frequently found (up to 30% of cases) in autoptic series that included patients who died from acute exacerbation of COPD, while the real incidence of PE during exacerbation has never been prospectively evaluated by large-scale clinical studies. Diagnosis of concomitant PE in these patients is often missed because symptoms of acute exacerbation of COPD may mimic PE, and non-invasive evaluation by pulmonary scintigraphy or CT scan is less specific. Even if not fatal, undetected and untreated PE may lead to long-term morbidity from pulmonary hypertension and predispose to recurrent venous thromboembolism (VTE). DVT of the lower extremities affects about 10% of patients with acute exacerbation of COPD at admission, but the rate is likely to be underestimated. The results of clinical trials conducted on general medical patients, including COPD patients, indicate that unfractionated heparin (UH) and low molecular weight heparin (LMWH) significantly reduce VTE rates. However, subgroup data on COPD patients are generally not available. In a single randomised, controlled trial specifically conducted on COPD patients, nadroparin reduced the rate of DVT from 28% to 15% without affecting mortality. CONCLUSIONS: Despite a substantial lack of consistent data, VTE appears as a major threat to patients admitted for acute exacerbation of COPD, and pharmacologic prophylaxis should be considered in all high risk situations. However, methodologically rigorous studies in this setting are still needed

Surface morphology and optical properties of thin films of thiophene-based binary blends

We report on the relationship between optical and morphological properties of thin films of a blend of thiophene-based monomer and a diamine derivative. This system is of interest as it gives rise to white emission, due to the formation of exciplex energy levels in the solid state. The photoluminescence emission has been collected for different relative concentrations of the two blend components, and the film topography has been mapped correspondingly by means of atomic force microscopy. Along with a complex evolution of the film surface morphology, a significant variation of the emission properties has been observed upon change of the blend composition. In particular, the intensity of the broad low-energy exciplex band turns out to be affected by a balance of two factors, namely, the extension of homogeneous blend film areas, and their effective concentration

Near-field spectroscopy of phase segregation in white-light-emitting blends based on low-mass molecules

We report on the direct observation of phase segregation occurring in thin-film blends of a thiophene monomer and an ammino compound, used in the fabrication of organic white-light-emitting diodes. In the homogeneous and uniform regions of the films, the interaction between the two molecular components gives rise to exciplex states responsible for a broad redshifted photoluminescence emission band, which disappears in the film zones where segregation occurs. This effect has been observed with submicrometer spatial resolution by means of local spectroscopic measurements performed in a scanning near-field optical microscope

Interfacial Morphology Addresses Performance of Perovskite Solar Cells Based on Composite Hole Transporting Materials of Functionalized Reduced Graphene Oxide and P3HT

The development of novel hole transporting materials (HTMs) for perovskite solar cells (PSCs) that can enhance device's reproducibility is a largely pursued goal, even to the detriment of a very high efficiency, since it paves the way to an effective industrialization of this technology. In this work, we study the covalent functionalization of reduced graphene oxide (RGO) flakes with different organic functional groups with the aim of increasing the stability and homogeneity of their dispersion within a poly(3-hexylthiophene) (P3HT) HTM. The selected functional groups are indeed those recalling the two characteristic moieties present in P3HT, i.e., the thienyl and alkyl residues. After preparation and characterization of a number of functionalized RGO@P3HT blends, we test the two containing the highest percentage of dispersed RGO as HTMs in PSCs and compare their performance with that of pristine P3HT and of the standard Spiro-OMeTAD HTM. Results reveal the big influence of the morphology adopted by the single RGO flakes contained in the composite HTM in driving the final device performance and allow to distinguish one of these blends as a promising material for the fabrication of highly reproducible PSCs