361 research outputs found

    Clusia rosea (Gal Goraka), an Alien Invasive Species Used as Fuelwood for Tea Drying in the Maskeliya Region, Sri Lanka

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    Fuelwood is the major source of energy for tea drying in Sri Lanka. High moisture content and presence of latex in the wood are the two main problems in using Cluisia as a fuelwood in tea drying. This study was carried out at Moussakellie tea factory and Hapugastenne estate in Maskeliya to evaluate Clusia rosea as a fuelwood species in tea drying. Two fuelwood combinations were evaluated by estimating Specific Fuelwood Consumption (SFC). Moisture content of Clusia wood were measured in relation to stem girth and methods of processing. Wood production of Clusia coppice managed under a six year rotation was measured. The study clearly shows that Clusia rosea is a suitable fuelwood species for tea drying. Clusia showed a higher energy value as inclusion of it in the fuelwood mixtures caused a significant reduction in the Specific Fuelwood Consumption (SFC). Clusia wood can be mixed up to 50% with wild wood for tea drying without causing deposition of latex on heat tubes by maintaining flue gas temperature above 1000C. Results of the study also showed that splitting and peeling are effective methods in removing moisture from Clusia wood. The study also identified the relationship between moisture content and moisture loss with stem girth. The biomass production of Clusia is found to be comparable with common fuelwood species used in tea drying. The study also revealed some characteristics of Clusia that contributes to its invasive behavior

    Unwrapping the Cosmetic Package: A Discriminant Analysis Approach

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    Packaging which is often called as the ‘silent salesman’ is an important component of marketing. Today the importance of packaging has risen to such an extent that product packaging is rightly called as the fifth ‘P’ of marketing mix. Cosmetics are products which are utilized by a large number of people. The present study examines the discriminating power of five selected cosmetics packaging variables namely ‘picture’, ‘colour’, ‘size’, ‘shape’ and ‘material’ amidst those who purchased cosmetics based on these packaging variables and for those who purchased cosmetics not based on these packaging variables. Discriminant analysis showed that only two variables namely ‘Colour’ (.706) and ‘Shape’ (– .527) were good predictors. Variables ‘Picture’, ‘size’ and ‘material’ were considered as poor predictors as far as the student communities were considered. The cross validated classification showed that out of the 240 samples drawn, 91.8% of the cases were correctly classified. &nbsp

    Multifactorial Aspects Influencing Non-Alcoholic Fatty Liver Disease (Nafld)

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    Nonalcoholic fatty liver disease (NAFLD) is a growing public health concern, with a prevalence of up to 25% worldwide. While once considered a benign condition, NAFLD is now recognized as a major cause of chronic liver disease, liver failure, and hepatocellular carcinoma. The pathogenesis of NAFLD is multifactorial and involves a complex interplay between genetic, environmental, and metabolic factors. In this review, we provide an overview of the multifactorial aspects of NAFLD, including genetic predisposition, insulin resistance, dyslipidemia, gut microbiota, dietary factors, and physical inactivity. We also discuss the role of inflammation, oxidative stress, and hepatic steatosis in the progression of NAFLD to nonalcoholic steatohepatitis (NASH), cirrhosis, and hepatocellular carcinoma. Finally, we review the current and emerging therapies for NAFLD and NASH, including lifestyle modifications, pharmacological interventions, and surgical approaches. The multifactorial nature of NAFLD requires a comprehensive approach to diagnosis, treatment, and prevention, with a focus on addressing the underlying metabolic and environmental factors that contribute to its development and progression

    The September 2004 stench off the southern Malabar coast - A consequence of holococcolithophore bloom

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    During the third week of September 2004, particularly on 16th and 17th, an unusual and strong stench was reported from the coast at Kollam and Vizhinjam in Kerala (India). Local dailies reported that over 200 children, mostly below 15 years, complained of nausea, chest pain and short periods of breathlessness because of the stench. Many were hospitalized, but were discharged within a couple of hours. A press report stated that the stench was due to dead fish scattered on the beaches and in the water. The report linked the fish death to oxygen depletion and choking of fish gills. Both were reported to be possibly due to proliferation and eventual putrefaction of a fish-toxic alga Cochlodinium polykreikoides. Information was put up on the web that the bloom was caused by Karenia brevis, a toxic dinoflagellate. It was reported that the stench could be felt up to 5 km inland from the coast. On 20 September 2004, the Government of Kerala requested the National Institute of Oceanography (NIO), Goa to determine the cause of the phenomenon. In response, a team from NIO collected near-shore samples of water on 23 and 26 September off Vizhinjam, Shanghumugham and Kollam. During 3-7 October 2004, RV Sagar Sukti, a coastal research vessel of NIO, was used to collect samples in the waters offshore of Vizhinjam, Veli, Kollam in the depth zones of 20-50 m. The water samples collected on 23 and 26 September from the near-shore spots were analysed for various chemical (dissolved oxygen, hydrogen sulphide, nutrients, and salinity) and biological (microbiological, phytoplankton counting and identification) variables. Data from sea-level records at Cochin Port were also examined to learn about the possible evolution of physical conditions before and after the episode described above. In this preliminary report inferences based on analysis of the data is presented

    Unravelling the nature of HD 81032 - a new RS CVn Binary

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    BVR photometric and quasi-simultaneous optical spectroscopic observations of the star HD 81032 have been carried out during the years 2000 - 2004. A photometric period of 18.802±0.0718.802 \pm 0.07 d has been detected for this star. A large group of spots with a migration period of 7.43±0.077.43 \pm 0.07 years is inferred from the first three years of the data. Hα\alpha and Ca II H and K emissions from the star indicate high chromospheric activity. The available photometry in the BVRIJHK bands is consistent with spectral type of K0 IV previously found for this star. We have also examined the spectral energy distribution of HD 81032 for the presence of an infrared colour excess using the 2MASS JHK and IRAS photometry, but found no significant excess in any band abovethe normal values expected for a star with this spectral type. We have also analyzed the X-ray emission properties of this star using data obtained by the ROSAT X-ray observatory during its All-Sky Survey phase. An X-ray flare of about 12 hours duration was detected during the two days of X-ray coverage obtained for this star. Its X-ray spectrum, while only containing 345 counts, is inconsistent with a single-temperature component solar-abundance coronal plasma model, but implies either the presence of two or more plasma components, non-solar abundances, or a combination of both of these properties. All of the above properties of HD 81032 suggest that it is a newly identified, evolved RS CVn binary.Comment: 18 pages, 10 figures, 3 tables, Accepted for the publication in JAp

    An environmentally benign antimicrobial nanoparticle based on a silver-infused lignin core

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    Silver nanoparticles have antibacterial properties, but their use has been a cause for concern because they persist in the environment. Here, we show that lignin nanoparticles infused with silver ions and coated with a cationic polyelectrolyte layer form a biodegradable and green alternative to silver nanoparticles. The polyelectrolyte layer promotes the adhesion of the particles to bacterial cell membranes and, together with silver ions, can kill a broad spectrum of bacteria, including Escherichia coli, Pseudomonas aeruginosa and quaternary-amine-resistant Ralstonia sp. Ion depletion studies have shown that the bioactivity of these nanoparticles is time-limited because of the desorption of silver ions. High-throughput bioactivity screening did not reveal increased toxicity of the particles when compared to an equivalent mass of metallic silver nanoparticles or silver nitrate solution. Our results demonstrate that the application of green chemistry principles may allow the synthesis of nanoparticles with biodegradable cores that have higher antimicrobial activity and smaller environmental impact than metallic silver nanoparticles

    One-Pot Green Synthesis and Bioapplication ofl-Arginine-Capped Superparamagnetic Fe3O4 Nanoparticles

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    Water-solublel-arginine-capped Fe3O4 nanoparticles were synthesized using a one-pot and green method. Nontoxic, renewable and inexpensive reagents including FeCl3,l-arginine, glycerol and water were chosen as raw materials. Fe3O4 nanoparticles show different dispersive states in acidic and alkaline solutions for the two distinct forms of surface bindingl-arginine. Powder X-ray diffraction and X-ray photoelectron spectroscopy were used to identify the structure of Fe3O4 nanocrystals. The products behave like superparamagnetism at room temperature with saturation magnetization of 49.9 emu g−1 and negligible remanence or coercivity. In the presence of 1-ethyl-3-(dimethylaminopropyl) carbodiimide hydrochloride, the anti-chloramphenicol monoclonal antibodies were connected to thel-arginine-capped magnetite nanoparticles. The as-prepared conjugates could be used in immunomagnetic assay

    Registration of ‘ALR 2’ Peanut

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    'ALR 2' Spanish peanut (Arachis hypogaea L. subsp. fastigiata Waldron var. vulgaris Hartz) (Reg. no. CV-61, P1 599975) is a pure-line selection from an advanced breeding line, ICGV 86011, developed at the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), ICRISAT Asia Center (IAC), Patancheru, AP, India. The original population of ICGV 86011 was supplied to the Agricultural Research Station, Aliyarnagar, Tamil Nadu, India, in 1984. It was tested during the rainy (Chitrai season: April sowing, no irrigation), postrainy (Margazhi season: October sowing, irrigated), and summer (Adi season: June sowing, irrigated) seasons of 1986 to 1993 in various yield trials in Tamil Nadu. After 8 yr of evaluation, ALR 2 was released in 1994 by the state varietal release subcommittee of the Tamil Nadu Agricultural University, Coimbatore, for cultivation in the rainy and irrigated postrainy and summer seasons in the Pollachi tract of Tamil Nadu (3)

    THE ROLE OF INTERDEPENDENCE IN THE MICRO-FOUNDATIONS OF ORGANIZATION DESIGN: TASK, GOAL, AND KNOWLEDGE INTERDEPENDENCE

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    Interdependence is a core concept in organization design, yet one that has remained consistently understudied. Current notions of interdependence remain rooted in seminal works, produced at a time when managers’ near-perfect understanding of the task at hand drove the organization design process. In this context, task interdependence was rightly assumed to be exogenously determined by characteristics of the work and the technology. We no longer live in that world, yet our view of interdependence has remained exceedingly task-centric and our treatment of interdependence overly deterministic. As organizations face increasingly unpredictable workstreams and workers co-design the organization alongside managers, our field requires a more comprehensive toolbox that incorporates aspects of agent-based interdependence. In this paper, we synthesize research in organization design, organizational behavior, and other related literatures to examine three types of interdependence that characterize organizations’ workflows: task, goal, and knowledge interdependence. We offer clear definitions for each construct, analyze how each arises endogenously in the design process, explore their interrelations, and pose questions to guide future research
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