Spin Effects in Two Quark System and Mixed States

Based on the numeric solution of a system of coupled channels for vector mesons ($S$- and $D$-waves mixing) and for tensor mesons ($P$- and $F$-waves mixing) mass spectrum and wave functions of a family of vector mesons $q\bar{q}$ in triplet states are obtained. The calculations are performed using a well known Cornell potential with a mixed Lorentz-structure of the confinement term. The spin-dependent part of the potential is taken from the Breit-Fermi approach. The effect of singular terms of potential is considered in the framework of the perturbation theory and by a configuration interaction approach (CIA), modified for a system of coupled equations. It is shown that even a small contribution of the $D$-wave to be very important at the calculation of certain characteristics of the meson states.Comment: 12 pages, LaTe

Current use of baseline medical treatment in chronic rhinosinusitis: Data from the National Chronic Rhinosinusitis Epidemiology Study (CRES)

Objectives: According to clinical and comissioning guidelines for chronic rhinosinusitis (CRS), patients being referred to secondary care should have failed primary medical treatment with nasal douching (ND) and intranasal corticosteroids (INCS). The study objectives were to identify the rate of specific medical therapy in CRS patients and establish any differences in medication use, for both CRS and associated medical conditions, between CRS phenotypes.  Design and setting: Case-control study in a secondary care setting.  Methods: Participant-reported study-specific questionnaire capturing free text data on current medication use at the time of study entry. Qualitative interviews with 21 participants also explored their experience of CRS and its management.  Particpants: Patients with both without (CRSsNPs) and with polyps (CRSwNPs). Main outcome measuresReported use of CRS-related and non-related medications.ResultsWithin a total of 1243 CRS participants, current INCS usage was low (18% in CRSwNPs, 12% in CRSsNPs); ND was being performed by only 1% of all participants. Bronchodilators and inhaled corticosteroids use was significantly higher in CRSwNPs participants (p < 0.0001). Antidepressants use was significantly higher in CRSsNPs (14% versus 7%, p < 0.0002). There were no significant regional variations in rates of INCS use, nor any significant influence of social deprivation.  Conclusions: The current use of baseline medical therapy in CRS appears to be very low, representing a combination of poor patient compliance, possible ineffectiveness of treatment and a lack of familiarity with current guidelines amongst general practitioners and some ENT specialists. Work is needed to disseminate guidelines to all practitioners involved and reduce unnecessary burden on existing healthcare resources for this common condition by ensuring timely referral and definitive management

Water Wave Scattering by an Infinite Step in the Presence of an Ice-Cover

The classical problem of water wave scattering by an infinite step in deep water with a free surface is extended here with an ice-cover modelled as a thin uniform elastic plate. The step exists between regions of finite and infinite depths and waves are incident either from the infinite or from the finite depth water region. Each problem is reduced to an integral equation involving the horizontal component of velocity across the cut above the step. The integral equation is solved numerically using the Galerkin approximation in terms of simple polynomial multiplied by an appropriate weight function whose form is dictated by the behaviour of the fluid velocity near the edge of the step. The reflection and transmission coefficients are obtained approximately and their numerical estimates are seen to satisfy the energy identity. These are also depicted graphically against thenon-dimensional frequency parameter for various ice-cover parameters in a number of figures. In the absence of ice-cover, the results for the free surface are recovered

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Not AvailableIn the present investigation, it has been attempted to ascertain the impact of Land Resource Inventory (LRI) for evaluating bio-physically viable and economically acceptable alternate agricultural Land Use Plan (LUP) in Upper Brahmaputra Valley eco-system of Assam, India. The study area is situated in North West Jorhat Development Block, Jorhat district, Assam. Based on soil survey and satellite image database, 4 landforms, 10 land use/land covers, 18 Landscape Ecological Units (LEUs), 12 soil series and 8 Land Management Units (LMUs) were identified for management intervention in the study area. Soil-site suitability for crops was ascertained in each land management unit for specific crops grown in the region based on site and soil characteristics. The studies revealed significant impact of LRI on LUP in terms of crop productivity and net return. The average yield of crops, along with annual net returns and benefit to cost ratios increased by 108, 85.9 and 33% when LRI based LUP was employed with respect to traditional system of cultivation. The same were increased by 304, 249 and 87.9% when LRI based LUP was adopted with crop specific Customized Recommended Management Practices (CRMPs) based on the need of the local conditions. The present investigation unfolds a novel approach of LUP using LRI base LMU as a base and can be exercised in other parts of North Eastern states of India under similar agro-ecological environment.Not Availabl

Impact assessment of land resource inventory towards optimizing land use plan in Brahmaputra valley ecosystem, Assam, India

Not AvailableIn the present investigation, it has been attempted to ascertain the impact of Land Resource Inventory (LRI) for evaluating bio-physically viable and economically acceptable alternate agricultural Land Use Plan (LUP) in Upper Brahmaputra Valley eco-system of Assam, India. The study area is situated in North West Jorhat Development Block, Jorhat district, Assam. Based on soil survey and satellite image database, 4 landforms, 10 land use/land covers, 18 Landscape Ecological Units (LEUs), 12 soil series and 8 Land Management Units (LMUs) were identified for management intervention in the study area. Soil-site suitability for crops was ascertained in each land management unit for specific crops grown in the region based on site and soil characteristics. The studies revealed significant impact of LRI on LUP in terms of crop productivity and net return. The average yield of crops, along with annual net returns and benefit to cost ratios increased by 108, 85.9 and 33% when LRI based LUP was employed with respect to traditional system of cultivation. The same were increased by 304, 249 and 87.9% when LRI based LUP was adopted with crop specific Customized Recommended Management Practices (CRMPs) based on the need of the local conditions. The present investigation unfolds a novel approach of LUP using LRI base LMU as a base and can be exercised in other parts of North Eastern states of India under similar agro-ecological environment.Not Availabl