Analytic structure of the n=7n=7 scattering amplitude in N=4\mathcal{N}=4 SYM theory at multi-Regge kinematics: Conformal Regge pole contribution

We investigate the analytic structure of the $2\to5$ scattering amplitude in the planar limit of $\mathcal{N}=4$ SYM in multi-Regge kinematics in all physical regions. We demonstrate the close connection between Regge pole and Regge cut contributions: in a selected class of kinematic regions (Mandelstam regions) the usual factorizing Regge pole formula develops unphysical singularities which have to be absorbed and compensated by Regge cut contributions. This leads, in the corrections to the BDS formula, to conformal invariant 'renormalized' Regge pole expressions in the remainder function. We compute these renormalized Regge poles for the $2\to5$ scattering amplitude.Comment: 46 pages, references added, typos corrected, journal versio

Analytic structure of the n=7n = 7 scattering amplitude in N=4\mathcal{N}=4 SYM theory in multi-Regge kinematics: Conformal Regge cut contribution

In this second part of our investigation of the analytic structure of the $2\to5$ scattering amplitude in the planar limit of $\mathcal{N}=4$ SYM in multi-Regge kinematics we compute, in all kinematic regions, the Regge cut contributions in leading order. The results are infrared finite and conformally invariant.Comment: 44 pages, 14 figures, 2 table

Anogenital Warts: New Opportunities for Prevention and Treatment

The study aims at evaluating the efficacy of combined administration of imiquimod 5% crème and human papillomavirus (HPV) quadrivalent recombinant vaccine in order to achieve a long‐term clinical remission in patients with chronic HPV infection manifested in condyloma accuminata (CA) of the anogenital area. The study enrolled 36 subjects aged 26.4 (4.1) years (including 22 men) with one to five condyloma accuminata of the anogenital area. Study participants were vaccinated with human papillomavirus quadrivalent recombinant vaccine using a 0–2–6‐month regimen with concomitant administration of imiquimod 5% crème applied three times per week for not more than 16 weeks. Patients were monitored over 2 years. Complete disappearance of condyloma accuminata was observed in 34 out of 36 subjects (94.4%) after 1 year from the start of treatment. Two patients still having condyloma accuminata of the anogenital area after 1 year of combination treatment underwent a successful course of treatment with Solcoderm (one patient for 1 year 3 months and the other for 1 year 4 months), which resulted in complete disappearance of condyloma accuminata. Within 2‐year period, no recurrence of condyloma accuminata of the anogenital area has been observed

Chronic Obstructive Pulmonary Disease (COPD): Clinical and Immunological Effects of Mono-Vaccination Against Influenza Using an Immunoadjuvant Vaccine of a New Class Versus Combined Administration S. pneumoniae, H. influenzae, and Influenza Vaccines

In Russian Federation, 27,300,000–41,200,000 acute upper and lower respiratory infections are reported annually. Patients with chronic obstructive pulmonary disease (COPD) are at higher risk of severe course, complications, and lethal outcomes of influenza. About 30% of COPD exacerbations are due to viral infections, and influenza A and B viruses are among the most common causes. The aim of our study was to assess exacerbation rate, number of courses of antibiotic chemotherapy, pulmonary function, and immunological effects of mono-vaccination with a new immunoadjuvant influenza vaccine vs. combined vaccination against pneumococcal infection, Hemophilus type b infection, and influenza in COPD patients. Both complex vaccination against Streptococcus pneumoniae, Haemophilus influenzae type b, and influenza and mono-vaccination with a new immunoadjuvant influenza vaccine led to statistically significant reduction in the number of COPD exacerbations and of antibiotic chemotherapy courses. Based on the obtained results, widespread implementation of mono-vaccination against influenza with a new immunoadjuvant influenza vaccine, as well as complex vaccination against bacterial respiratory infections and influenza can be recommended for COPD patients, as vaccination is beneficial for their functional status, that is, improves forced expiratory volume in 1 s (FEV1) and 6-minute walk test results. In our study, we evaluated immunogenicity of the new influenza immunoadjuvant vaccine administered as mono-vaccine to COPD patients in accordance with Committee for Proprietary Medicinal Products (CPMP) requirements

UV-Light-Tunable p-/n-Type Chemiresistive Gas Sensors Based on Quasi-1D TiS\u3csub\u3e3\u3c/sub\u3e Nanoribbons: Detection of Isopropanol at ppm Concentrations

The growing demand of society for gas sensors for energy-efficient environmental sensing stimulates studies of new electronic materials. Here, we investigated quasi-one-dimensional titanium trisulfide (TiS3) crystals for possible applications in chemiresistors and on-chip multisensor arrays. TiS3 nanoribbons were placed as a mat over a multielectrode chip to form an array of chemiresistive gas sensors. These sensors were exposed to isopropanol as a model analyte, which was mixed with air at low concentrations of 1–100 ppm that are below the Occupational Safety and Health Administration (OSHA) permissible exposure limit. The tests were performed at room temperature (RT), as well as with heating up to 110 oC, and under an ultraviolet (UV) radiation at λ = 345 nm. We found that the RT/UV conditions result in a n-type chemiresistive response to isopropanol, which seems to be governed by its redox reactions with chemisorbed oxygen species. In contrast, the RT conditions without a UV exposure produced a p-type response that is possibly caused by the enhancement of the electron transport scattering due to the analyte adsorption. By analyzing the vector signal from the entire on-chip multisensor array, we could distinguish isopropanol from benzene, both of which produced similar responses on individual sensors. We found that the heating up to 110 oC reduces both the sensitivity and selectivity of the sensor array

UV-Light-Tunable p-/n-Type Chemiresistive Gas Sensors Based on Quasi-1D TiS3 Nanoribbons: Detection of Isopropanol at ppm Concentrations

The growing demand of society for gas sensors for energy-efficient environmental sensing stimulates studies of new electronic materials. Here, we investigated quasi-one-dimensional titanium trisulfide (TiS(3)) crystals for possible applications in chemiresistors and on-chip multisensor arrays. TiS(3) nanoribbons were placed as a mat over a multielectrode chip to form an array of chemiresistive gas sensors. These sensors were exposed to isopropanol as a model analyte, which was mixed with air at low concentrations of 1–100 ppm that are below the Occupational Safety and Health Administration (OSHA) permissible exposure limit. The tests were performed at room temperature (RT), as well as with heating up to 110 °C, and under an ultraviolet (UV) radiation at λ = 345 nm. We found that the RT/UV conditions result in a n-type chemiresistive response to isopropanol, which seems to be governed by its redox reactions with chemisorbed oxygen species. In contrast, the RT conditions without a UV exposure produced a p-type response that is possibly caused by the enhancement of the electron transport scattering due to the analyte adsorption. By analyzing the vector signal from the entire on-chip multisensor array, we could distinguish isopropanol from benzene, both of which produced similar responses on individual sensors. We found that the heating up to 110 °C reduces both the sensitivity and selectivity of the sensor array

High density QCD and nucleus-nucleus scattering deeply in the saturation region

In this paper we solve the equations that describe nucleus nucleus scattering, in high density QCD,in the framework of the BFKL Pomeron calculus. We found that (i) the contribution of short distances to the opacity for nucleus-nucleus scattering dies at high energies, (ii) the opacity tends to unity at high energy, and (iii) the main contribution that survives comes from soft (long distance) processes for large values of the impact parameter. The corrections to the opacity \Omega\Lb Y,b\Rb = 1 were calculated and it turns out that they have a completely different form, namely(1 - \Omega \to \exp\Lb - Const\,\sqrt{Y}\Rb) than the opacity that stems from the Balisky-Kovchegov equation, which is(1 - \Omega \to \exp\Lb - Const\,Y^2\Rb). We reproduce the formula for the nucleus-nucleus cross section that is commonly used in the description of nucleus-nucleus scattering, and there is no reason why it should be correct in the Glauber-Gribov approachComment: 25pp and 12 figures in eps forma

Laterally extended atomically precise graphene nanoribbons with improved electrical conductivity for efficient gas sensing

Narrow atomically precise graphene nanoribbons hold great promise for electronic and optoelectronic applications, but the previously demonstrated nanoribbon-based devices typically suffer from low currents and mobilities. In this study, we explored the idea of lateral extension of graphene nanoribbons for improving their electrical conductivity. We started with a conventional chevron graphene nanoribbon, and designed its laterally extended variant. We synthesized these new graphene nanoribbons in solution and found that the lateral extension results in decrease of their electronic bandgap and improvement in the electrical conductivity of nanoribbon-based thin films. These films were employed in gas sensors and an electronic nose system, which showed improved responsivities to low molecular weight alcohols compared to similar sensors based on benchmark graphitic materials, such as graphene and reduced graphene oxide, and a reliable analyte recognition. This study shows the methodology for designing new atomically precise graphene nanoribbons with improved properties, their bottom-up synthesis, characterization, processing and implementation in electronic devices

Prospect for VLBI Network Extension: the First Results of an Ad-hoc S2 Array Experiments

The Canadian S2 system gives a chance for Russian and some other radio telescopes in the world to be involved into international VLBI programs. Brief descriptions of previous S2 experiments and future possibilities are presented