825 research outputs found

    Classical and Quantum Mechanics of Anyons

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    We review aspects of classical and quantum mechanics of many anyons confined in an oscillator potential. The quantum mechanics of many anyons is complicated due to the occurrence of multivalued wavefunctions. Nevertheless there exists, for arbitrary number of anyons, a subset of exact solutions which may be interpreted as the breathing modes or equivalently collective modes of the full system. Choosing the three-anyon system as an example, we also discuss the anatomy of the so called ``missing'' states which are in fact known numerically and are set apart from the known exact states by their nonlinear dependence on the statistical parameter in the spectrum. Though classically the equations of motion remains unchanged in the presence of the statistical interaction, the system is non-integrable because the configuration space is now multiply connected. In fact we show that even though the number of constants of motion is the same as the number of degrees of freedom the system is in general not integrable via action-angle variables. This is probably the first known example of a many body pseudo-integrable system. We discuss the classification of the orbits and the symmetry reduction due to the interaction. We also sketch the application of periodic orbit theory (POT) to many anyon systems and show the presence of eigenvalues that are potentially non-linear as a function of the statistical parameter. Finally we perform the semiclassical analysis of the ground state by minimizing the Hamiltonian with fixed angular momentum and further minimization over the quantized values of the angular momentum.Comment: 44 pages, one figure, eps file. References update

    Sanctity and Exclusion of Sanctified Women and Exempted Women

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    The people of the Sangam period, who lived within a multi-professional social structure such as hunting, agriculture, and war, developed some spells and rituals whenever they had disruptions in those occupations. It is the function of anticipating material needs through nature. The mantras and rituals of ancient society are mostly based on prosperity. In that aspect, the woman who is the core nucleus of human opulence is seen as a symbol of prosperity in various events. The woman is entitled to high respect in the stages of puberty, marriage, and maternity. Especially for the sake of puberty and maternity, the woman is sanctified and forbidden. This article sets out to illustrate how mantra is transformed into religion when the consecrated woman is elevated to the status of a deity

    EFFECTIVENESS OF SPIRULINA MOUTHWASH ON REDUCTION OF DENTAL PLAQUE AND GINGIVITIS: A CLINICAL STUDY

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    Objective: The present study evaluated the effectiveness of Spirulina mouthwash on the reduction of dental plaque and gingivitis.Methods: A single-blind clinical trial was conducted among thirty patient's aged 18-40 y visiting dental college and hospital in Bangalore city. Mouthwash was prepared using 0.5% Spirulina. Intervention protocol consisted of instructing the patients to rinse with 10 ml of mouthwash for 1 minute twice daily for 7 d. Plaque index and Gingival index were used to assess the variables at the baseline and after the intervention. The perception of the individual subjects with regard to the use of mouthwash was assessed using 10 cm long visual analog scale (VAS). Statistical analysis was carried out using Wilcoxon signed rank test for mean pre and post plaque and gingival scores respectively. Descriptive statistics was performed for VAS questionnaireResults: The results showed a highly significant difference (p<0.001) between the mean plaque scores at the baseline (2.16±0.34) and at the follow up (1.27±0.46). The mean gingival scores at the baseline (1.86±0.38) and at the follow-up (1.05±0.43) also showed a highly significant difference (p<0.001). Regarding the Visual Analog Scale, the mean values of 5 or greater than suggested the responses to be favourable as the values were reflectedConclusion: The study showed that Spirulina mouthwash resulted in significant reduction in dental plaque and gingivitis. Also, the mouthwash was convenient to use without any adverse effects. Hence, the use of herbal mouth rinses such as Spirulina should be supported

    Study on post partum intrauterine contraceptive device practices and causes for discontinuation of PPIUCD at follow up in a tertiary hospital

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    Background: Post partum contraception is the best evidence based intervention in prevention of pregnancy and abortion related maternal morbidity and mortality in the developing countries. The unmet need for contraception among women in the postpartum period can be effectively fulfilled by post partum insertion of IUCD, in a single visit under the Government scheme of providing free maternity services during institutional delivery. Despite optimal efforts by family planning program, very few couples are opting for spacing methods and lack of awareness has resulted in discontinuation of family planning methods particularly PPIUCD. This study is designed to study the practices of PPIUCD and causes for discontinuation at follow up in our hospital. The objectives of the study were study PPIUCD practices at Vanivilas hospital; causes for discontinuation of PPIUCD.Methods: Prospective study done at Vanivilas hospital attached to Bangalore Medical College and Research Institute from January 2014 to December 2014. Women admitted and delivered at VVH, were counselled. CuT 380A was inserted in accepters who fulfilled the Medical Eligibility Criteria and had no contraindications for PPIUCD. They were followed up till June 2016.Results: There were 2072 PPIUCD insertions in one year, out of which 1244 were post placental, 139 were in immediate postpartum and 689 were intra caesarean insertions. Fifty four (54) women discontinued PPIUCD during follow up .Main causes for removal were menstrual abnormalities (19), pain abdomen (13), wanting sterilisation procedure (12) and marital disharmony.Conclusions: PPIUCD is an effective, safe, reversible method of long term contraception with high reported expulsion and low perforation rate, compared to interval insertion. More research is needed in the field of PPIUCD to enhance awareness and acceptance in the community. Awareness and counselling the eligible couples during ante natal care can improve acceptance and compliance of PPIUCD continuation rates

    Proofs for Integrity of Data in Cloud Storage

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    data is moved to a remotely located cloud server in cloud computing. The cloud stores the data and return back to the owner whenever it is needed. But there is no guarantee that data stored in the cloud is secured and not altered by the cloud or Third Party. In order to overcome the problem of integrity of data, the user must be able to use the assist of a third party. The third party has experience in checking integrity of data, that cloud users does not have, and that is difficult for the owner to check. The data in the cloud should be correct, consistent, accessible and high quality. The aim of this research is to ensure the integrity of data and provides the proof that data is in secured manner and to provide cryptographic key to secure the data in the cloud. The proposed approach has been implemented

    HEALING POTENTIAL OF A POLYHERBAL OINTMENT ON EXCISION WOUND IN NORMAL AND DIABETES INDUCED ALBINO RATS

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    Objective: Wound healing potential of polyherbal ointment prepared from Cordial oblique Willd., Dentophote falcate (L.f) Ettingsh., and Vigna radiate Linn. has been evaluated, Preclinical studies were carried out using albino rats as experiment models.Methods: Animals were divided into 6 groups, each groups comprising of 6 rats. Group I, II and III are normal excision wounded rats that were categorized as normal untreated, polyherbal ointment treated and standard ointment treated respectively. Groups IV, V and VI were induced with diabetes using alloxan monohydrate (150mg/kg bw; ip single dose) and grouped into diabetic untreated, polyherbal ointment treated and standard ointment treated respectively. The polyherbal ointment was prepared by using aqueous extracts of plants in equal proportion with simple ointment base (15% w/w). The Physical, Biochemical and enzymatic parameters studied were rate of wound contraction, ascorbic acid, hydroxyproline, hexosamine, SOD, LPO, serum protein, granulation tissue protein, serum glucose, DNA, RNA, platelet and WBC.Results: The excision wounded animals treated with polyherbal ointment showed a higher rate of contraction and epithelialization during the treatment period. Group II showed 100% and group V showed 90% wound contraction at the end of experimental period. Hydroxyproline, hexosamine, ascorbic acid, tissue protein, DNA, RNA levels and SOD activity were increased significantly (p<0.05), LPO, platelet and serum protein level were decreased with polyherbal ointment treated groups compared to control and standard groups.Conclution: The present study substantiates the traditional claims of plants prepared as polyherbal ointment possessing significant wound healing promoting activity and provides scientific evidence to the ethno medicinal property of plants in healing wounds.Keywords: Wound healing, Polyherbal ointment, Hydroxyproline, Hexosamine, Excision wound, Cordia obliqua Willd., Dentophote falcate (L.f)Ettingsh., Vigna radiata Linn

    Assessment of the Awareness among Diabetic Patients of Their Risk for Oral Disease as Complication Associated With Diabetics

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    AIM: To assess the awareness of diabetic patients of their risk for oral disease as complication associated with diabetics. INTRODUCTION: Diabetes mellitus is a metabolic disorder characterized by hyperglycemia due to defective secretion or activity of insulin. Type II diabetes is a common disorder with concomitant oral manifestation that impacts dental care Evidence shows that many patients are unaware about effects of diabetes mellitus on oral health.  METHODOLOGY: A cross sectional descriptive survey was conducted among adult dental patients attending a tertiary care hospital of Bangalore city. A total of 172 patients were included in the study. The tool used to conduct the survey was a close-ended self-administered 14-item questionnaire. Self-rate oral health was assessed using a 4 point scale as good, average, bad and don’t know. RESULT: A total of 172 subjects, among them 120 (69.7%) were males and 52 (30.3%) were females. Among 172 subjects, 87(50%) were aware that diabetics are more prone to oral diseases .91(52%) of the study subjects did not know that diabetes effects gingiva.91(52%) of individuals knew diabetes causes delay in wound healing. 81% of the subjects, self-rated their mouth as good. CONCLUSION: Diabetic patients are less aware of their risk for dental diseases. Thus, it is necessary for dental professionals and related government agencies to promote awareness of the relationship between diabetes mellitus and oral health in order to prevent harmful complications on oral healt

    QI initiative to improve utilization of centchroman: a non-steroidal contraceptive

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    Background: The nonsteroidal contraceptive centchroman is manufactured in India. It was included in family welfare programme in April 2016 by the Ministry of Health and Family Welfare, Government of India. However, national statistics indicated its low utilization at all levels of healthcare. Objective was to identify the reasons for underutilization of centchroman in the family planning clinic, and in the postpartum period, and to implement corrective measures to improve its utilization at a tertiary hospital.Methods: The study was conducted in the department of obstetrics and gynecology at a tertiary care hospital from September 2019 to January 2022. A quality improvement action team was constituted to undertake root cause analysis. Important corrective factors were insufficient focused counselling for centchroman as contraceptive, insufficient sensitization of doctors and nurses, inconsistent supply of tablets, lack of clarity about side effects of centchroman among healthcare workers. Tablets were not readily available to postpartum women at home, which was also a contributing factor. There were the following changes implemented: sensitization of the healthcare workers, daily focused FP counselling of women in outpatient clinics and postnatal wards, and measures to ensure a continuous supply of tablets. At discharge, eligible postpartum women were given a three-month supply of tablets for ready access. ASHA (accredited social health activist) workers who are engaged in other governmental health initiatives were included in the loop to maintain contact and supply tablets to women initiated on centchroman.Results: Contraceptive utilization increased from 0.5-0.7% at beginning of the study to 29% by incorporating the solutions. Failure of contraception occurred in one user. Pearl index for centchroman in our study was 0.22%.Conclusions: Simple, practical solutions identified through quality improvement initiatives resulted in improved coverage and utilization of contraceptive. This study can be an important example for problem solving of challenges in low resource settings

    Dietary Salt Intake and Hypertension in An Urban South Indian Population – [CURES - 53]

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    Objective : The aim of the study was to determine the mean dietary salt intake in urban south India and to look at its association with hypertension. Methods : The Chennai Urban Rural Epidemiology Study (CURES) is an ongoing population based study on a representative population of Chennai city in southern India. Phase 1 of CURES recruited 26,001 individuals aged ≥ 20 years, of whom every tenth subject (n=2600) was invited to participate in Phase 3 for detailed dietary studies and 2220 subjects participated in the present study (response rate : 84.5%). Participants with self-reported history of hypertension, diabetes or heart disease were excluded from the study (n=318) and thus the final study numbers were 1902 subjects. Dietary salt, energy, macronutrients and micronutrients intake were measured using a validated semi-quantitative food frequency questionnaire. Diagnosis of hypertension was based on the National Cholesterol Education Programme (NCEP) Adult Treatment Panel III criteria. Logistic regression analysis was used to look at the association of dietary salt with hypertension. Results : Mean dietary salt intake (8.5 g/d) in the population was higher than the recommended by the World Health Organization (<5g/d). Higher salt intake was associated with older age and higher income (p for trend<0.0001). Subjects in the highest quintile of salt intake had significantly higher prevalence of hypertension than did those in the lowest quintile (48.4 vs 16.6%, p<0.0001). Both systolic and diastolic blood pressure significantly increased with increase in quintiles of total dietary salt both among hypertensive and normotensive subjects (p for trend p1 teaspoon/day at the dining table was associated with a higher prevalence for hypertension compared to zero added salt (38.5% vs 23.3%, Chi-square = 18.95; p<0.0001). Multiple logistic regression analysis revealed that even after adjusting for age, gender, body mass index, total energy intake and dietary fat, total dietary salt intake was positively associated with hypertension. [Odds ratio (OR): 1.161, 95% Confidence Interval (CI): 1.115-1.209, p<0.0001]. Conclusion: Intake of dietary salt in urban south India is higher than currently recommended. Increasing salt intake is associated with increased risk for hypertension even after adjusting for potential confounders. This calls for urgent steps to decrease salt consumption of the population at high ris
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