1,335 research outputs found

    Complexity in Technology Choices and Market Access for Pigeon Pea Growers in Semi-Arid Tropics of India

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    India, being the largest producer, consumer and importer of pulses, its demand and supply influences global pulses sector significantly. For several years, there has been consistent import of different types of pulse-grains by India, despite having the largest area under cultivation and their total production. This paper focuses mainly on the production of pigeon pea, second most produced and consumed pulse after chickpea. There has been a major shift in the pigeon pea production in the country. The study is an attempt to examine the adoption of modern variety and other production practices in the highest pigeon pea producing state of India viz. Maharashtra. The marketing behaviour of the pigeon pea growers is also the focus area of this study. The pigeon pea production in India varied dramatically over the last five decades, in terms of its spread, productivity and its importance as an intercrop. At the farmers’ level, there is a need for proper intervention in cropping patterns through new and improved crop varieties, information dissemination to farmers, mechanization and service support in reducing operational costs of farmers so as to increase the profitability from pigeon pea cultivation. The lot size and conveniences in terms of distance and time flexibility are some of the major influencers to decide about the marketing destination for the pigeon pea growers in the region

    Multi-criteria analysis and ex-ante assessment to prioritize and scale up climate smart agriculture in semi–arid tropics, India

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    The strategies that integrate food security, adaptation and mitigation options in agriculture are of high importance to manage the increasing risk of climate change in vulnerable semi-arid regions for the livelihood security of poor agriculture-dependent people. To address the growing problems of food security and climate change, multiple institutions and programs have demonstrated evidences for developing Climate-Smart Villages (CSVs) across regions which can act as a sustainable model for adapting to changing climate and improve farmers’ welfare. However, it remain a major challenge to upscale CSV approach. This paper presents a framework and evidence based designing of a strategy for scaling up Climate Smart Agriculture (CSA) in Telangana State of India. Climate risk and vulnerability mapping at disaggregate level; Inventory of CSA practices and respective technical coefficients; multicriteria analysis for participatory prioritization of location specific CSA practices and identification of barriers and incentives; ex-ante impact analysis of potential adoption and investment and infrastructure needs to implement CSA practices at local level and strategy for CSA integration into district level plans have been the key steps of this CSV approach. Local level vulnerability assessments and participatory prioritization based on index calculated for climate smartness and ease of adoption for each proposed practice, formed the basis of prioritizing CSA interventions suitable for particular location. Further the ex-ante impact analysis of selected climate smart interventions in different regions of Telangana was the next step. We also generated relevant geospatial maps for irrigated as well as rainfed major crops under vertisols and light soils. These maps helped in identifying context specificity of CSA interventions. Based on participatory prioritization, five CSA practices such as Ridges and Furrows, Broad bed and furrow for soil and moisture conservation and drainage, Farm pond for critical/supplemental irrigation, Crop residue management (cotton) and drip irrigation system were considered for ex-ante assessment considering district wise actual area and yields of major crops and rainfall level for 5 years from 2010-11 to 2014-15. The proposed framework and different tools help to understand the district wise potential for promotion of CSA practices/technologies, public and private investment needs, economic impacts of the interventions to enable informed decision making for climate smart agriculture. Stakeholders’ consultations during different stages of this process was very important for integrating their perspective and creating ownership. Piloting of evidence based scientific framework guides investments and policy making decisions on scaling up CSA in Telangana state

    Recent Results from PHOBOS at RHIC

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    The PHOBOS experiment at RHIC has recorded measurements for Au-Au collisions spanning nucleon-nucleon center-of-mass energies from 19.6 GeV to 200 GeV. Global observables such as elliptic flow and charged particle multiplicity provide important constraints on model predictions that characterize the state of matter produced in these collisions. The nearly 4 pi acceptance of the PHOBOS experiment provides excellent coverage for complete flow and multiplicity measurements. Results including beam energy and centrality dependencies are presented and compared to elementary systems.Comment: 4 pages, 4 figures, proceedings from PANIC02 in Osaka, Japa

    Global Observations from PHOBOS

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    Particle production in Au+Au collisions has been measured in the PHOBOS experiment at RHIC for a range of collision energies. Three empirical observations have emerged from this dataset which require theoretical examination. First, there is clear evidence of limiting fragmentation. Namely, particle production in central Au+Au collisions, when expressed as dN/dηâ€ČdN/d\eta' (ηâ€Čâ‰ĄÎ·âˆ’ybeam\eta' \equiv \eta-y_{beam}), becomes energy independent at high energy for a broad region of ηâ€Č\eta' around ηâ€Č=0\eta'=0. This energy-independent region grows with energy, allowing only a limited region (if any) of longitudinal boost-invariance. Second, there is a striking similarity between particle production in e+e- and Au+Au collisions (scaled by the number of participating nucleon pairs). Both the total number of produced particles and the longitudinal distribution of produced particles are approximately the same in e+e- and in scaled Au+Au. This observation was not predicted and has not been explained. Finally, particle production has been found to scale approximately with the number of participating nucleon pairs for Npart>65N_{part}>65. This scaling occurs both for the total multiplicity and for high \pT particles (3 <\pT< 4.5 GeV/c).Comment: QM2002 plenary talk, 10 pages, 11 figure

    Distinct Hypothalamic Neurons Mediate Estrogenic Effects on Energy Homeostasis and Reproduction

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    SummaryEstrogens regulate body weight and reproduction primarily through actions on estrogen receptor-α (ERα). However, ERα-expressing cells mediating these effects are not identified. We demonstrate that brain-specific deletion of ERα in female mice causes abdominal obesity stemming from both hyperphagia and hypometabolism. Hypometabolism and abdominal obesity, but not hyperphagia, are recapitulated in female mice lacking ERα in hypothalamic steroidogenic factor-1 (SF1) neurons. In contrast, deletion of ERα in hypothalamic pro-opiomelanocortin (POMC) neurons leads to hyperphagia, without directly influencing energy expenditure or fat distribution. Further, simultaneous deletion of ERα from both SF1 and POMC neurons causes hypometabolism, hyperphagia, and increased visceral adiposity. Additionally, female mice lacking ERα in SF1 neurons develop anovulation and infertility, while POMC-specific deletion of ERα inhibits negative feedback regulation of estrogens and impairs fertility in females. These results indicate that estrogens act on distinct hypothalamic ERα neurons to regulate different aspects of energy homeostasis and reproduction

    Centrality Dependence of Charged Particle Multiplicity at Mid-Rapidity in Au+Au Collisions at sqrt(s_NN) = 130 GeV

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    We present a measurement of the pseudorapidity density of primary charged particles near mid-rapidity in Au+Au collisions at sqrt(s_NN) = 130 GeV as a function of the number of participating nucleons. These results are compared to models in an attempt to discriminate between competing scenarios of particle production in heavy ion collisions.Comment: 5 pages, 4 figures, revtex (submitted to Phys. Rev. Letters

    Universal Behavior of Charged Particle Production in Heavy Ion Collisions

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    The PHOBOS experiment at RHIC has measured the multiplicity of primary charged particles as a function of centrality and pseudorapidity in Au+Au collisions at sqrt(s_NN) = 19.6, 130 and 200 GeV. Two kinds of universal behavior are observed in charged particle production in heavy ion collisions. The first is that forward particle production, over a range of energies, follows a universal limiting curve with a non-trivial centrality dependence. The second arises from comparisons with pp/pbar-p and e+e- data. N_tot/(N_part/2) in nuclear collisions at high energy scales with sqrt(s) in a similar way as N_tot in e+e- collisions and has a very weak centrality dependence. This feature may be related to a reduction in the leading particle effect due to the multiple collisions suffered per participant in heavy ion collisions.Comment: 4 Pages, 5 Figures, contributed to the Proceedings of Quark Matter 2002, Nantes, France, 18-24 July 200

    Towards climate-smart agricultural policies and investments in Telangana

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    This briefing note summarizes the key findings of the “Scaling up climate-smart agriculture in the Telangana State” project, carried out by the International Crops Research Institute for the Semi-Arid Tropics and partners, between 1st January 2016 and 31st December 2017. This project was carried out with the financial support of the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), Ministry of Environment, Forests & Climate Change, Government of India and Indian Council of Agricultural Research (ICAR). Partners involved in the execution of this project were: the National Bank for Agriculture and Rural Development (NABARD); the Environment Protection Training and Research Institute (EPTRI); the CGIAR Research Program on Climate change, Agriculture and Food Security (CCAFS); the Prof. Jayashankar Telangana State Agriculture University (PJTSAU); Department of Agriculture, Government of Telangana and the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT)

    Pseudorapidity Distributions of Charged Particles in d + Au and p + p Collisions at sNN\sqrt{s_{_{NN}}} = 200GeV

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    The measured pseudorapidity distributions of primary charged particles are presented for d + Au and p + p collisions at sNN={\sqrt{s_{_{NN}}} =} 200 GeV over a wide pseudorapidity range of âˆŁÎ·âˆŁâ‰€{\rm \mid \eta \mid \le} 5.4. The results for d + Au collisions are presented for minimum-bias events and as a function of collision centrality. The measurements for p + p collisions are shown for minimum-bias events. The ratio of the charged particle multiplicity in d + Au and p + A collisions relative to that for inelastic p + p collisions is found to depend only on {}, and it is remarkably independent of collision energy and system mass. The deuteron and gold fragmentation regions in d + Au collisions are in good agreement with proton nucleus data at lower energies.Comment: 4 pages, 3 figures. To appear in the proceedings of Seventeenth International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions (Quark Matter 2004), Oakland, California from January 11-17, 2004. Submitted to Journal of Physics G: Nuclear and Particle Physic

    Towards climate-smart agricultural policies and investments in Telangana

    Get PDF
    This briefing note summarizes the key findings of the “Scaling up climate-smart agriculture in the Telangana State” project, carried out by the International Crops Research Institute for the Semi-Arid Tropics and partners, between 1st January 2016 and 31st December 2017
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