531 research outputs found

    Pinning down neutrino oscillation parameters in the 2-3 sector with a mgnetised atmospheric neutrino detector: a new study

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    We determine the sensitivity to neutrino oscillation parameters from a study of atmospheric neutrinos in a magnetised detector such as the ICAL at the proposed India-based Neutrino Observatory. In such a detector that can {\em separately} count νμ\nu_\mu and νμ\overline{\nu}_\mu-induced events, the relatively smaller (about 5\%) uncertainties on the neutrino--anti-neutrino flux ratios translate to a constraint in the χ2\chi^2 analysis that results in a significant improvement in the precision with which neutrino oscillation parameters such as sin2θ23\sin^2\theta_{23} can be determined. Such an effect is unique to all magnetisable detectors and constitutes a great advantage in determining neutrino oscillation parameters using such detectors. Such a study has been performed for the first time here. Along with an increase in the kinematic range compared to earlier analyses, this results in sensitivities to oscillation parameters in the 2--3 sector that are comparable to or better than those from accelerator experiments where the fluxes are significantly higher. For example, the 1σ1\sigma precisions on sin2θ23\sin^2\theta_{23} and Δm32(31)2|\Delta{m^2_{32(31)}}| achievable for 500 kTon yr exposure of ICAL are 9%\sim9\% and 2.5%\sim2.5\% respectively for both normal and inverted hierarchies. The mass hierarchy sensitivity achievable with this combination when the true hierarchy is normal (inverted) for the same exposure is Δχ28.5\Delta\chi^2\approx8.5 (Δχ29.5\Delta\chi^2\approx9.5)

    AN ASSESSMENT OF QUALITY OF LIFE IN SWASAKASAM (BRONCHIAL ASTHMA) PATIENTS REPORTING AT AYOTHIDOSS PANDITHAR HOSPITAL – A CROSS SECTIONAL STUDY

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    Asthma is a chronic inflammatory disease of the small airways that affects all age groups. Asthma symptoms lead to impairment in the physical, emotional and social aspects of patient’s life. Bronchial asthma can be correlated to Swasakasam as per siddha text book Yugi vaithiya chinthamani 800. In Swasakasam patients, respiratory symptoms are important determinants of reduced health related quality of life. Evaluation of Health Related Quality of Life (HRQoL) is a primary outcome measure in patient with chronic disease. The objective of the study is to assess the HRQoL in Swasakasam patients and to evaluate the risk factors associated with it. It was a hospital based observational study of which 100 asthma patients were evaluated to quality of life who were reporting at OPD of Ayothidoss Pandithar Hospital, National Institute of Siddha (NIS) through Asthma Quality of Life Questionnaire (AQLQ). In this study, asthma affects females more than males (63% and 32%) and with 2% of male children. For the total patient population, there was a maximum limitation in physical activity domain (2.22±0.41) of HRQoL compared to other 3 domains. In case of sub score of all domains the mean of emotional function domain is lesser in female patients than male. Bronchial asthma significantly affects QOL. To reduce the asthma severity yoga, Pranayamam may be used adjunctively with standard medication in bronchial asthma patients and awareness should be given to improve their quality of life and to reduce the number of asthma attacks per week

    YUGI’S CONCEPT OF GUNMAM PATIENTS REPORTING AT AYOTHIDOSS PANDITHAR HOSPITAL, NATIONAL INSTITUTE OF SIDDHA (NIS) - A CROSS SECTIONAL STUDY

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    According to Siddha system of medicine disease are numbered as 4448. One among them is Gunmam. Severe pain in the abdomen occurs as one of the symptoms and this makes the patient to bend forward in order to get relief from pain and hence the name is mentioned as Gunmam. As per sage Yugi, Gunmam is further classified into 8 types. The human body runs on the basis of Vatham, Pitham, Kabam and due to changes in the equilibrium of tri-dosha mankind acquires disease. As per Theraiyar Gunmam occurs due to vitiation of Vali thathu. Common symptoms of Gunmam are indigestion, vomiting, abdominal pain, abdominal distension, decrease body weight, loss of confidence. The signs and symptoms of Gunmam can be correlated to Acid Peptic Disease (APD). This study was undertaken to assess the incidence of different types of Gunmam patients reporting at OPD of Ayothidoss Pandithar Hospital. This is hospital based cross sectional study conducted in Ayothidoss Pandithar Hospital between months of May 2019 and July 2019. The study was given ethical approval by institutional Ethics Committee. The study included the completion of questionnaire which focuses on symptoms of eight types of Gunmam, thega ilakkanam, behavioural risk factors for Gunmam and physical measurements from randomly selected patients reporting to the OPD. Using Systematic random sampling method, 250 patients were selected from the OPD of Ayothidoss Pandithar Hospital. Statistical analysis was done using SPSS software. Among 250 Gunmam patients, 33.2% of subjects are Pitha thegi, 32.8% of subjects are Eri gunmam

    Catalytic Reduction of Hazardous Compound (Triethylphosphate) Using Ni Doped CuO Nanoparticles

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     Nickel doped Copper oxide nanoparticles were prepared by hydrothermal method for catalytic reduction of Triethylphosphate (TEP). It is a well known toxicant from organophosphorous compounds. The nanoparticles were characterized by DLS, UV, FTIR, XRD, SEM and EDAX. FTIR and UV results reveals that the functional properties and the absorbance of NPs. DLS and SEM results reveals that the size and surface morphology of NPs. XRD and EDAX results confirms the structural purity of Ni dopants were substituted into the cubic CuO NPs and the elemental composition. Ni doped CuO is an efficient catalyst for catalytic reduction of TEP using sunlight irradiation and it was monitored by UV VIS spectrophotometer

    METABOLIC SYNDROME IN MADHUMEGAM (TYPE 2 DIABETES MELLITUS) PATIENTS REPORTING AT NATIONAL INSTITUTE OF SIDDHA – A CROSS SECTIONAL STUDY

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    Introduction: Madhumegam is a clinical condition characterised by frequent and excessive urination which ultimately leads to deterioration of seven body constituents and three humours. Its signs and symptoms may be correlated with Diabetes mellitus in modern science. Since, metabolic syndrome has become major cause of morbidity and mortality, identifying its cause and prevention has gained immense importance. Aim: This study aimed at determining the prevalence of metabolic syndrome in Madhumegam (Type 2 Diabetes mellitus) patients and to identify the most critical predictive risk factors of metabolic syndrome. Methods: This hospital based cross sectional study involved 100 type 2 diabetes mellitus patients and was conducted at Ayothidoss Pandithar Hospital, National Institute of Siddha. This study used questionnaire to obtain information on diabetic condition, anthropometric measurements and lipid profile. Metabolic syndrome was defined according to the International Diabetes Federation criteria. Results: The prevalence of metabolic syndrome was 53% in the study population. Elevated triglyceride was the commonest component (77.3%) followed by lowered HDL (51%). Female type 2 diabetic patients had a higher prevalence of metabolic syndrome (54.7%) than their male counterparts (45.3%). With respect to age, individual within the age group of 60-69 had highest prevalence of metabolic syndrome while age group of 30-39 has least prevalence of metabolic syndrome. Conclusion: Elevated triglyceride for men and lowered HDL for women were the strongest risk factors. Metabolic syndrome is a significant health problem and its preventive strategies should focus on early diagnoses and lifestyle modification

    Note on the mottled fusilier Dipterygonotus balteatus (Valenciennes, 1830) landed along Tamil Nadu coast

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    Unusual landing of the mottled fusilier Dipterygonotus balteatus was observed along the northern coast of Tamil Nadu during July and September 2006. Mottled fusiliers belong to the percoid family Caesionidae. While the juveniles are known to school together with other caesionids on coral reefs, the adults are usually distributed in near shore pelagic waters. D. balteatus occurs in Indo- Pacific waters, from East Africa, off Lakshadweep, Sri Lanka, Indonesia, to Philippines, Indo-China and northern Australia

    Simulation analysis with rock muons from atmospheric neutrino interactions in the ICAL detector at INO

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    The proposed magnetized Iron CALorimeter detector (ICAL) to be built in the India-based Neutrino Observatory (INO) laboratory aims to study atmospheric neutrinos and its properties such as precision measurements of oscillation parameters and the neutrino mass hierarchy. High energy charged current (CC) interactions of atmospheric neutrinos with the rock surrounding the detector produce so-called "rock muons" along with hadrons. While the hadron component of these events are absorbed in the rock itself, the rock muons traverse the rock and are detected in the detector. These rock muon events can be distinguished from cosmic muons only in the upward direction and can provide an independent measurement of the oscillation parameters. A simulation study of these events at the ICAL detector shows that, although reduced in significance compared to muons produced in direct CC neutrino interactions with the detector, these events are indeed sensitive to the oscillation parameters, achieving a possible 1σ1\sigma precision of 10\% and 27\% in determining Δm322\Delta m_{32}^2 and sin2θ23\sin^2\theta_{23}, respectively. Hence a combination of the standard atmospheric neutrino analysis which is the main goal of ICAL, with these rock muon events, will improve the precision reach of ICAL for these parameters

    Study of neutrino oscillation parameters at the INO-ICAL detector using event-by-event reconstruction

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    We present the reach of the proposed INO-ICAL in measuring the atmospheric-neutrino-oscillation parameters θ23\theta_{23} and Δm322\Delta m^2_{32} using full event-by-event reconstruction for the first time. We also study the fluctuations in the data and their effect on the precision measurements and mass-hierarchy analysis for a five-year exposure of the 50 kton ICAL detector. We find a mean resolution of Δχ22.9\Delta\chi^2 \approx 2.9, which rules out the wrong mass hierarchy of the neutrinos with a significance of approximately 1.7σ1.7\sigma. These results are similar to those to presented earlier studies that approximated the performance of the ICAL detector
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