Asymptotic freedom and Confinement imply spontaneously broken chiral symmetry in Quantum Chromodynamics

We utilize Coleman's theorem and show that quantum chromodynamics based on asymptotic freedom and confinement must have chiral symmetry realized as a spontaneously broken symmetry.Comment: Latex, 7 page

Origin, distribution and systematics of culinary cucumber (Cucumis melo subsp. agrestis var. conomon)

The non-dessert or culinary forms of C. melo are a distinct group distributed and adapted well essentially under humid tropics of Southern India. Culinary cucumber or vegetable cucumber (Cucumis melo subsp. agrestis var. conomon) belongs to the family Cucurbitaceae, genus Cucumis, species melo, subspecies agrestis and variety conomon. In English, it is popularly called as Mangaluru cucumber, Oriental pickling melon, Japanese pickling melon, golden melon, culinary melon, Indian yellow cucumber, yellow cucumber, lemon cucumber, and so on. Although much of the information about culinary cucumber calls them cucumbers they are not cucumbers! They are actually a part of the so called “conomon” group of melons (Cucumis melo). Traditionally the conomon melons have been used in the Far East for pickling. Culinary cucumbers have a special feature that the fruits can be stored up to 8-10 months without losing their freshness. They can be stored for many weeks by hanging them from the ceiling, firmly bound by thin coconut fibre ropes. This ethnic vegetable is used for preparation of various culinary items. Even seeds are used for preparation of juice against dyspepsia. In this review article, the aspects about the family to which culinary cucumber belongs, genus Cucumis, origin and distribution of the genus Cucumis, domestication of melons (Cucumis melo), intraspecific classification of Cucumis melo, genetic diversity in melons, crossability among Cucumis species, and among Cucumis melo subspecies, origin and distribution of culinary cucumber, uses, nutritional value, medicinal properties, evaluation of germplasm, high yielding varieties, cultivation aspects, have been discussed. Understanding the evolutionary history and domestication process, increases the possibility for better exploiting the genetic diversity for cultivar development. Its storage trait can be transferred to muskmelon by adopting a suitable breeding method. The local landraces or varieties which are highly tolerant to high temperature, drought, pests and diseases in summer, can also be employed as a useful breeding material

Immunology of tuberculosis - An overview

Over a hundred years have passed since Robert Koch has isolated the tubercle bacillus, but still the immune mechanisms in tuberculosis are not yet completely unravelled. The information explosion in the field of immunology during the last ten years has resulted in a modest beginning in the knowledge of tuberculoimmunity at the cellular and molecular level. It is necessary to understand the host responses to mycobacterium tuberculosis in order to appreciate the clinical consequences, diagnosis and prophylaxis of tuberculous infection. In the following sections the progress in our understanding of host’s immune response to M. tuberculosis is considered with special emphasis on immunopathogenesis, immunosuppression and immunodiagnosis

The possible role of soluble material from macrophages in cell mediated immunity in pulmnary tuberuculosis

Lymphocytes from pulmonary tuberculosis patients and healthy controls showed identical proliferative responses to mitogen (PHA) and antigen (PPD) on Day ‘O’ (DO), Day-2 (D2) and Day-7 (D7) of culture. Also, there was no suppression of PHA induced lymphocyte proliferation in the presence of culture supernatants of pulmonary tuberculosis patient’s mononuclear cells

Physico-chemical Properties of Chloramine-T: Part III- Conductometric Study of the Interaction of Chloramine-T with Th(IV) & Zr(IV) Solutions

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Comparison of dosimetry in head and neck cancer patients treated with intensity modulated radiation therapy and helical tomotherapy

Background: This study was conducted to compare dosimetric parameters and dose to specific organs at risk (spinal cord and parotids) between intensity modulated radiation therapy (IMRT) and helical tomotherapy (HT) in head and neck squamous cell carcinomas (HNSCC).Methods: Thirty patients with histologically proven HNSCC were treated with chemo radiotherapy, to a dose of 60-70 Gray in 30-35 fractions. This study consists of two arms; IMRT arm and tomotherapy arm. Fifteen consecutive patients treated under IMRT and 15 patients were treated under helical tomotherapy, along with concurrent chemotherapy. PTV1 encompasses low risk planning target volume (PTV) which receives 50 Gy; PTV2 encompasses intermediate risk PTV which receives 54-60 Gy and PTV3 encompasses high risk PTV which receives 66-70 Gy. After completion of planning, dose to the organs at risk (OARs) and targets, homogeneity index and conformity index were evaluated, and tabulated.Results: On evaluation of plans we found that V95% in PTV1, PTV2 and PTV3 were 91.82%, 96.85% and 90.67% respectively for IMRT and 99.25%, 99.68% and 99.73% respectively for tomotherapy. For PTV3, V110% was 0.11% for IMRT and 0.01% for tomotherapy. Homogeneity index in IMRT arm was 0.285 and it was 0.206 in tomotherapy arm. Conformity index was found to be 1.04 for IMRT plans and 1.06 for tomotherapy plans. When mean dose to contra lateral parotids was evaluated, it was 26.91 Gy in IMRT arm and 25.97 Gy in tomotherapy arm. Max dose to spinal cord was better in tomotherapy (43.07 Gy in IMRT and 34.41 Gy in tomotherapy).Conclusions: There was statistically significant reduction in spinal cord maximum dose and point doses in tomotherapy plans compared to IMRT plans. The decrease in spinal cord dose can increase the tolerance reserve which can be useful in dose escalation or re-irradiation if required. There was also decrease in contra lateral parotid doses (not statistically significant). There was significant improvement in V95% in tomotherapy arm compared to IMRT arm, indicating the significantly superior coverage of target volumes in helical tomotherapy plans compared to IMRT plans. V110% (hot spots) inside the target was very minimal in tomotherapy arm compared to IMRT arm. Conformity index, homogeneity index between two arms were comparable