70 research outputs found
Evaluating sustainable intensification and diversification options for agriculture-based livelihoods within an aquatic biodiversity conservation context in Buxa, West Bengal, India
Potential impacts of sustainable intensification and diversification options for agriculture-based livelihoods in Buxa, West Bengal, India were evaluated using bioeconomic modelling. The baseline scenario involved multiple cropping seasons and a combination of crops on 0.9 ha landholdings, livestock husbandry, and exploitation of common property resources. With capital costs of Rs. 128,180 (US 667), the net benefit generated (excluding depreciation) was Rs. 70,250 (US 1,342) and IRR to 56.5% with minimal added costs and risks. Adopting the system of rice intensification (SRI) for paddy cultivation on 0.35 ha increased the IRR to 61.1%, while reducing agrochemical and inorganic fertiliser use. Including small-scale fish culture in a 0.1 ha pond integrated in the irrigation scheme for SRI cultivation resulted in an IRR of 77.3% and reduced the pay-back period to 1.3 years. Some risks to biodiversity are apparent with each scenario; however, with appropriate safeguards, sustainable agricultural intensification and livelihoods diversification could bolster agrobiodiversity and social-ecological resilience of highland communities, while alleviating pressure on biodiversity
Nonlinear Strong Coupling by Second-Harmonic Generation Enhancement in Plasmonic Nanopatch Antennas
Enhanced electromagnetic fields within plasmonic nanocavity mode volumes enable multiple significant effects that lead to applications in both the linear and nonlinear optical regimes. In this work, we demonstrate enhanced second harmonic generation from individual plasmonic nanopatch antennas which are formed by separating silver nanocubes from a smooth gold film using a sub-10 nm zinc oxide spacer layer. When the nanopatch antennas are excited at their fundamental plasmon frequency, a 104-fold increase in the intensity of the second harmonic generation wave is observed. Moreover, by integrating quantum emitters that have an absorption energy at the fundamental frequency, a second order nonlinear exciton - polariton strong coupling response is observed with a Rabi splitting energy of 19 meV. The nonlinear frequency conversion using nanopatch antennas thus provides an excellent platform for nonlinear control of the light-matter interactions in both weak and strong coupling regimes which will have a great potential for applications in optical engineering and information processing
Effect of covering by black polythene sheet and coal powder on nearby surfaces of sand bed solar still: Studying heat and mass transfer
Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.The lack of potable water poses a big problem in the world. Solar stills have long been used as an easy-to-operate and popular water production unit. In present work, the real situation near the seashores where wet sand is available in abundance with brackish water is being simulated and experiments were conducted. The experimental results are helpful for the coastal area where there is abundance of saline water but lack of potable water. The two experimental arrangements were compared for the heat and mass transfer within the single slope solar still and the yield in the month of March at Raipur (Latitude 21.16N and longitude 81.42 E)
India. It has been observed that the daily distillation yield is more in second case where surrounding mass of sand has been converted as heat storage that enhances heat and mass transfer. The wet sand top surface temperature that resembles the water temperature of solar still of both arrangements increases slowly as the sun rises up and reaches to its maximum at 1:30 pm of 1st as well as 2nd day by rise of 231 % and 125% more with comparison to morning temperature respectively for solar still S-1. The same water temperature for solar still S-2 also reaches to its maximum at same time 1:30 pm of 1st as well as 2nd day by rise of 234 % and 139 % respectively. It has been observed that the second solar still S-2 remains always ahead as for as yield is concerned. Finally in two days of observation the second still gives 12.20% more yield (6.205 litres in comparison to5.530 litres) per m2 basin area in 48 hours of the basin in comparison to the first solar still S-1 under consideration. This yield can be increased significantly by increasing the area of the basin. One more interesting conclusion is the fact that in still wet sand nearly behaves as a free water surface.dc201
Field Data-based Mathematical Simulation Of Manual Rebar Cutting
Construction process activities are very complex in nature and there have been
attempts to simulate them via numerous methods. Manual work, which constitutes a large
proportion of total construction in India and developing countries, requires emphasis. Field
data-based mathematical simulations develop an empirical relation between inputs and
outputs; once the model is developed and weaknesses have been identified, methods can
be easily improved and optimised for output goals. This paper covers in detail the process of
developing models for the rebar cutting subactivity of reinforced concrete construction in
residential buildings. These models are evaluated using sensitivity analysis, optimisation
techniques and reliability analysis and are validated using artificial neural networks
ANTI-HYPERGLYCEMIC AND ANTI-HYPERLIPIDEMIC POTENTIAL OF A POLYHERBAL PREPARATION “DIABEGON” IN METABOLIC SYNDROME SUBJECT WITH TYPE 2 DIABETES
Background: In the present study, “Diabegon” a poly-herbal preparation, with hypoglycemic activity, was evaluated for its preventive effect in metabolic syndrome subjects with type 2 diabetes and also to reveal its side effects, on liver and kidney.
Materials and Methods: Type 2 diabetic subjects with metabolic syndrome (N=58) were categorized on the basis of age and fasting blood glucose. The grouping was as follows: Group I (35-50 yrs), Group II (51-65 yrs), Group III >65 yrs, Group IV FBS145. Each group was administered 4 gm of diabegon daily. Blood glucose levels, lipid profile, liver and kidney function of the subjects were regularly monitored within 3 months of interval to 18 months.
Results: The reduction in fasting blood glucose level ranged from 12.3% (
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240th ENMC workshop: the involvement of skeletal muscle stem cells in the pathology of muscular dystrophies 25 -27 January 2019, Hoofddorp, the Netherlands
Satellite cells are dysfunctional in several neuromuscular disorders.
Some muscles are more susceptible than others to disease and ageing.
In vitro and in vivo model systems have shed light on many of the processes involved.
in satellite cell function and dysfunction, but the drawbacks of each model system must
be considered.
Skeletal muscle pathology in mouse models of neuromuscular disease are affected by
genetic background.
A single cell approach will be useful to identify dysfunction in subsets of cell
populations
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Electrochemical Deactivation of Nitrate, Arsenate, and Trichloroethylene
This research investigated the mechanism, kinetics and feasibility of nitrate, arsenate, and trichloroethylene inactivation on zerovalent iron (ZVI), mixed-valent iron oxides, and boron doped diamond film electrode surfaces, respectively. Nitrate ( ) is a common co-contaminant at sites remediated using permeable reactive barriers (PRBs). Therefore, understanding nitrate reactions with ZVI is important for understanding the performance of PRBs. This study investigated the reaction mechanisms of with ZVI under conditions relevant to groundwater treatment. Tafel analysis and electrochemical impedance spectroscopy were used to probe the surface reactions. Batch experiments were used to study the reaction rate of with freely corroding and cathodically protected iron wires. The removal kinetics for the air formed oxide (AFO) were 2.5 times slower than that of water formed oxide (WFO).This research also investigated the use of slowly corroding magnetite (Fe3O4) and wustite (FeO) as reactive adsorbent media for removing As(V) from potable water. Observed corrosion rates for mixed valent iron oxides were found to be 15 times slower than that of zerovalent iron under similar conditions. Electrochemical and batch and column experiments were performed to study the corrosion behavior and gain a deeper understanding on the effects of water chemistry and operating parameters, such as, empty bed contact times, influent arsenic concentrations, dissolved oxygen levels and solution pH values and other competing ions. Reaction products were analyzed by X-Ray diffraction and XPS to determine the fate of the arsenic.This research also investigated use of boron doped diamond film electrodes for reductive dechlorination of trichloroethylene (TCE). TCE reduction resulted in nearly stoichiometric production of acetate. Rates of TCE reduction were found to be independent of the electrode potential at potentials below -1 V with respect to the standard hydrogen electrode (SHE). However, at smaller overpotentials, rates of TCE reduction were dependent on the electrode potential. Short lived species analysis and density functional simulations indicate that TCE reduction may occur by formation of a surface complex between TCE and carbonyl groups present on the surface
The Endowment Effect: Rose-Tinted and Dark-Tinted Glasses
The endowment effect, predicted by prospect theory, is a robust finding in behavioral decision theory. Extending recent examinations of the underlying processes, we present evidence for differential perceptions of the traded item, with sellers focusing more on positive features and less on negative features, relative to buyers. In experiment 1, sellers and buyers access information of differing valence in a free recall task. Experiment 2 utilizes error rates and response latencies to demonstrate systematic, and differing, patterns of errors and biases in reactions to valenced stimuli. Experiment 3 utilizes contrast effects to manipulate these foci, thereby moderating the endowment effect. (c) 2005 by JOURNAL OF CONSUMER RESEARCH, Inc..
Seeing Through the Heart's Eye: The Interference of System 1 in System 2
Dual process models conceptualize two systems of processing that are activated when presented with a decision task, the quick and affective System 1 and the deliberative and rule-based System 2. In this article, we explore whether the affective component of System 1 has the potential to interfere with the information integration component of System 2 by utilizing everyday consumer decision-making situations that require the integration of provided information to make optimal choices. We posit that if the provided information has an affective System 1 element, then the affective reaction serves as an input to the System 2 process of information integration. Such an affective input has the potential to cause improper information integration resulting in a biased mental representation, which in turn leads to suboptimal choices. Across three experiments, we test the interfering role of affect in information integration. Experiment 1 establishes the mediating role of the affective System 1 generating a preference for the suboptimal option and rules out the alternate account of analytical skills. Experiments 2 and 3 provide converging evidence for the proposed account that System 1 interferes with System 2 and argue against the alternate account of System 1 directly influencing choice.system 1 and system 2, dual process models, choice, affect, irrationality, two-part tariff, misattribution, information integration, stimulus-induced affect, affect and cognition, behavioral decision theory
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