76 research outputs found

    Phase formation, thermal stability and magnetic moment of cobalt nitride thin films

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    Cobalt nitride (Co-N) thin films prepared using a reactive magnetron sputtering process by varying the relative nitrogen gas flow (\pn) are studied in this work. As \pn~increases, Co(N), \tcn, Co3_3N and CoN phases are formed. An incremental increase in \pn, after emergence of \tcn~phase at \pn=10\p, results in a continuous expansion in the lattice constant (aa) of \tcn. For \pn=30\p, aa maximizes and becomes comparable to its theoretical value. An expansion in aa of \tcn, results in an enhancement of magnetic moment, to the extent that it becomes even larger than pure Co. Though such higher (than pure metal) magnetic moment for Fe4_4N thin films have been theoretically predicted and evidenced experimentally, higher (than pure Co) magnetic moment are evidenced in this work and explained in terms of large-volume high-moment model for tetra metal nitrides.Comment: 4 pages, 4 figure

    Secondary infection in immuno-competent children with dengue: Case series

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    The occurrence of bacterial superinfection, or coinfection, in patients with dengue, has been previously reported,but the available information comes from anecdotic reports. We report clinical and pathological data of immunocompetentchildren diagnosed with dengue and had evidence of concurrent bacterial infections

    Effect of age of plantation on seed characters and growth performance of Tokopatta (Livistona jinkensiana Griff.) seedling

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    Tokopatta palm (Livistona jinkensiana) is a valuable non timber multiple end uses forest species of Arunachal Pradesh. In order to establish improved plantation, the production of quality seedling of this species is essential. The present study was undertaken to determine tree age effects on seed characters, seed germination and performance of seedlings. The 500 seeds sample from each plantations aged 18, 25, 35, 45, 54, 63 and 74 years old around Pasighat town under East Siang district, Arunachal Pradesh, India were taken to see the effect of tree ageon seed morphological characters, seed germination and seedling performance. Significant variation was observed for seed diameter and seed weight between plantations of different ages. The age effect was also seen in the germination patterns with middle aged plantations producing most superior seeds in terms of seed morphological parameters and germination behavior. Seedling attributes after 12 months showed that seedling obtained from young and middle aged plantations (between 18 to 45 years) performed better than those beyond 50 years

    Inferiorly Based Nasolabial Flap As A Backup Flap – A Surgical Case Report

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    Introduction: Nasolabial flaps have been recognised as versatile flaps for reconstruction of variety of defects in the face, nose, lip and the oral cavity. Random pattern inferiorly based nasolabial flaps (IBNLF) have been utilised for covering various small defects over the face and oral mucosa. This is also a reliable backup flap in partial failure of primary flaps in maxillofacial reconstruction.  Aim:To evaluate the outcome of a secondary defect of commisure and buccal surface arising due to partial failure of bippadle PMMC flap with an inferiorly based nasolabial flap (IBNLF). The final functional and the esthetic result are evaluated, along with the need for subsequent secondary procedure. Case: A 73-year-old male presented with a rapidly growing Squamous cell carcinoma involving right cheek.    En bloc resection of right oral commissure and buccal region was performed.  Modified neck dissection was performed on the right side.  Reconstruction of the defect was done using bipaddle PMMC flap. Partial failure of primary flap started from 5th post operative day. Complete defect of right commissure was evident by third week posteratively. Inferiorly based nasolabial flap (IBNLF) was used as a back up flap for correction of residual defect. Conclusion: An inferiorly based Nasolabial flap (IBNLF) is a reliable backup flap for the reconstruction of small and medium sized secondary defects in the face and oral cavity. This flap can be best utilized for elderly, high risk patients in whom neck dissection with facial artery ligation have been done

    Wild edible fruit tree resources of Arunachal Pradesh, North East India

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    The paper reports on the survey of wild edible fruit trees covering 49 sites from 17 districts of Arunachal Pradesh, India. A total of 52 wild edible fruits species representing 33 families was reported, out of which 10 had medicinal uses. The highest number of wild edible fruits belonged to family Moraceae (9 spp.) followed by Anacardiaceae (4 spp.) and Actinidiaceae (3 spp.). More than half the fruits (66.67%) are available during the monsoon season, i.e. between June and October. Dilenia indica, Castanopsis indica, Canarium strictum, Terminalia citrina, Phoebe cooperiana, Phyllanthus emblica and Artocarpus intergifolia are the commonly traded fruits. This is perhaps the only extensive survey which has so far been carried out on wild edible fruit tree resources covering all the districts of Arunachal Pradesh. In the present era where there is global interest on bioresource documentation, this study is significant for securing intellectual property right and preventing biopiracy

    Limiting blood loss in orthognathic surgery with Esmolol as a hypotensive agent

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    Orthognathic surgery may be complicated by difficulty in achieving hemostasis because unlike soft tissue, the vessels traversing bone cannot be identified and isolated before osteotomy. In this study we evaluated the amount of blood loss and duration of surgery under deliberate hypotensive anesthesia in comparison to amount of blood loss and duration of surgery under normotensive anesthesia on patients undergoing orthognathic surgical procedures. A total of 16 cases undergoing orthognathic surgery were included in this clinical study.Patients were randomly grouped under normotensive (group I) or hypotensive group (group 2). Patients in hypotensive anesthesia group were given Esmolol to maintain mean arterial pressure in the range of 70-80 mm of Hg till osteotomy segments were fixed. There was more than 40% reduction in blood loss in orthognathic surgical procedures when induced hypotension was used, but there was not statistically significant (p=0.91) reduction in the operative time. Based on surgeons and anesthetist’s assessment fast acting agents like Esmolol can be used intraoperatively to induce hypotension as and when required. 
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