15 research outputs found

    PdTe a 4.5K Type II BCS Superconductor

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    We report on the structure and physical properties of bulk Palladium Tellurium superconductor, which is synthesized via quartz vacuum encapsulation technique at 750 C. The as synthesized compound is crystallized in hexagonal crystal structure. Magnetization and Magneto-transport measurements provided the values of lower and upper critical field to be 250 and 1200 Gauss respectively at 2 Kelvin. The Coherence length and GL parameter are estimated from the experimentally determined upper and lower critical fields, which are 45 nm and 1.48 respectively. The jump in Cp(T) at Tc is found to be 1.33 and the Debye temperature and electronic specific heat constant are 203 Kelvin and 6.01mJ/mole-K2 respectively.Comment: 13 pages Text + Figs: Accepted in Sup. Sci. and Tec

    Effect of Shashtika Shali Pinda Sweda & other Ayurvedic Intervention in Cerebral palsy: A Case Report

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    Cerebral palsy is a disorder that affects muscle tone, movement and motor skills (the ability to move in a coordinated and purposeful way). Cerebral Palsy cannot be correlated with any single disease or condition mentioned in Ayurveda, as it is a multi-factorial disease. The classical signs and symptoms of CP will fit into criteria of Vata Vyadhi spectrum (Vata predominant disease) like Ekangvata, Sarvangvata, Pakshaghata, Pangu, Kampavata etc and Phakkaroga. Although cerebral palsy cannot be completely cured but treatment will generally enhance a child’s abilities. Agnimandya, Amavastha and Kaphavastha should be considered while planning the line of treatment in CP cases. The selected Ayurvedic treatment modality is highly effective in relieving the signs and symptoms and thus reducing the disability in children with CP. Swedana (sudation) is the therapy that relieves the Stambha (stiffness) of the body, mitigate feeling of Guruta (heaviness) and Sheeta (feeling of cold). Shastika shali panda sweda comes under the category of Saagniseda with Snigda dravya as milk and Shalidhanya. It has Snigdha, Guru, Sthira, Sheeta, Tridoshaghna and Brimhanaguna. In this article, an attempt to treat a child with spastic diplegia using multiple Ayurveda treatment modalities. At the end of one year of treatment, Panchkarma procedures along with internal medication resulted in 15-20% improvement in the overall effect of therapy

    Ayurvedic Management of Comorbid State of Autism with Attention Deficit Hyperactivity Disorder w.s.r Unmada

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    Unmada a term used in Ayurveda, refers to a condition characterized by mental instability, restlessness and abnormal behaviors. It similar to modern day autism spectrum disorder (ASD) and attention deficit hyperactive disorder (ADHD). ASD and ADHD are neuro developmental and neuropsychiatric disorder. These disorders have shared genetic heritability and are both associated with shared impairment in social functioning and executive functioning. However, in the phenotypic presentation of the impairment which characterized ASD and ADHD. The fundamental principles of Ayuvedic management are to restore the balance of the Doshas. In the case of Unmada, particularly when comorbid with autism and ADHD, the focus on pacifying the aggravated Vata dosha. This can be achieved through a combination of dietary modification, lifestyle changed, Balpanchkarma and Marma therapies and Medhya Dravya. Aim and Objective: A case study of Ayurvedic management of comorbid state of Autism and Attention Deficit Hyperactivity Disorder w.s.r Unmaad. Material and Method: A 5-year-old female patient was come to the OPD of Kaumarbhritya Department, Rishikul Campus, UAU, Haridwar. With complain of difficulty in speaking as per development age, poor eye contact, hyperactive in nature with addiction of mobile in the last three year. This condition can be understood as Unmada. Treatment including with some Balpanchkarma and Marma therapies, and Ayurvedic formulations for 2-3 months. Result: There significant improvement in the condition of the patient. Ayurvedic intervention in this case reveals the true potential and efficacy of our Ayurvedic science

    Impact of Ni doping on critical parameters of PdTe superconductor

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    We report the effect of Ni doping on superconductivity of PdTe. The superconducting parameters like critical temperature (T-c), upper critical field (H-c2) and normalized specific-heat jump (Delta C/gamma T-c) are reported for Ni doped Pd1-xNixTe. Samples of series Pd1-xNixTe with nominal compositions x = 0, 0.01, 0.05, 0.07, 0.1, 0.15, 0.2, 0.3 and 1.0 are synthesized via the vacuum shield solid state reaction route. All the studied samples of Pd1-xNixTe series are crystallized in a hexagonal crystal structure as refined by the Rietveld method to space group P6(3)/mmc. Both the electrical resistivity and magnetic measurements revealed that Tc decreases with increasing Ni concentration in Pd1-xNixTe. Magnetotransport measurements suggest that flux is better pinned for 20% Ni doped PdTe as compared to other compositions of Pd1-xNixTe. The effect and contribution of Ni 3d electron to electronic structure and density of states near the Fermi level in Pd1-xNixTe are also studied using first-principle calculations within the spin polarized local density approximation. The overlap of bands at the Fermi level for NiTe is larger as compared to PdTe. Also the density of states just below the Fermi level (in conduction band) drops much lower for PdTe than as for NiTe. In summary, Ni doping in Pd1-xNixTe superconductor suppresses superconductivity moderately and also Ni is of non-magnetic character in these compounds

    DFT-Assisted Mechanism Evolution of the Carbonylation of Ethylene Glycol to Ethylene Carbonate by Urea over Zn(NCO)<sub>2</sub>·2NH<sub>3</sub> Catalyst

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    Zn­(NCO)<sub>2</sub>·2NH<sub>3</sub> catalyst has been synthesized, characterized by X-ray diffraction and IR spectroscopy, and used as a catalyst for the cyclization of urea and ethylene glycol (EG) to ethylene carbonate (EC) for the first time. A maximum yield of 40% has been obtained with a urea/EG mole ratio of 1:1.5 and a temperature of 150 ± 2 °C. An attempt has been made to predict the mechanism of the reaction with the help of density functional theory calculations. Our calculations suggest the reaction to be a consecutive one. In the first step, urea decomposes to ammonia and isocyanic acid (HNCO). HNCO reacts with EG to produce 2-hydroxyethyl carbamate (2-HEC). At the last step, 2-HEC cyclizes over Zn­(NCO)<sub>2</sub>·2NH<sub>3</sub> to EC. Calculations suggest the cyclization of 2-HEC to follow a charge-controlled intramolecular nucleophilic elimination cyclization path

    Not Available

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    Not AvailableHigh-isoflavones soybean genotypes are desired in nutraceutical industry. Conversely, low-isoflavones soybean genotypes are preferred to regular soybean in designing soy-based infant formula and in developing soy food products with reduced astringent taste. Concentration of individual form of isoflavones viz. daidzein, glycitein and genistein was determined in the seeds of 46 Indian and exotic soybean genotypes using high performance liquid chromatography. The study exhibited a 9-fold (234.3-2092.5 µg/g of seed) genetic variation for total isoflavones content, with 19 genotypes falling in high isoflavones (>1200 µg/g), and 14 genotypes in low isoflavoes category (<600 µg/g). For developing genotypes with further high or low values of isoflavones, it is critical to hybridize genetically diverse parents with-in high or low-isoflavones genotypes as analysed by HPLC. Genetic diversity analysis carried out using 58 simple sequence (SSR) markers exhibited 144 alleles with polymorphic information content (PIC) varying from 0.00 to 0.773. The pair-wise genetic similarity value between soybean genotypes varied from 0.24 to 0.95. Unweighted Pair Group Method with Arithmetic Mean (UPGMA) allocated the genotypes in 5 clusters with fairly good bootstrap support. Mantel’s test for cophenetic correlation with r = 0.810 indicated a good fit of the soybean genotypes in a group in the cluster analysis. Genetically diverse parents identified in low- and high-isoflavones category can be crossed to obtain trangressive segregants.Not Availabl
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