261 research outputs found

    A call for innovations tht change the (organic) world

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    Recent developments in organic farming and consumption show dynamic growth in markets; new uptake of Organic Agriculture by farmers, however, has been slow. Hindrances appear to be production problems or lack of trust by the farmers that organic methods can solve farming problems, such as fertilization, plant protection, animal health, efficient use of workforce, marketing diversity etc. While in some cases those problems can be solved through learning existing and regionally practiced methods, innovations are imperative to make organic farming competitive and a viable alternative farming system. OFIA, the Organic Farming Innovation Award, part of the Organic World Congress, highlights outstanding innovations and publishes priorities for innovative research

    Voicemail Information Encoding for Better Call Direction

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    The present disclosure describes computer-implemented systems and methods for encoding information to outbound voicemail prompts with a computer-readable signature allowing for more efficient voicemail usage and enhanced voicemail privacy. In one embodiment, a computer readable signature is provided at the beginning of an outbound voicemail prompt to signify to a calling computing system it has reached the voicemail, and a computer readable signature is provided at the end of the outbound voicemail prompt to signify to the calling computing system that the outbound voicemail prompt has ended and the voicemail is recording

    Detailed Bathymetric Surveys in the Central Indian Basin

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    Over 420,000 line kilometers of echo-sounding data was collected in the Central Indian Basin. This data was digitized, merged with navigation data and a detailed bathymetric map of the Basin was prepared. The Basin can be broadly classified into three regions as high relief area, medium relief area and plain area represented by western, eastern and central portions of the Basin, respectively. The bathymetric map prepared from this survey is the first of its kind for this region and will in the future be used as a base by navigators and researchers

    Novel Strategy to Improve the Performance of Localization in WSN

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    A novel strategy of discrete energy consumption model for WSN based on quasi Monte Carlo and crude Monte Carlo method is developed. In our model the discrete hidden Markov process plays a major role in analyzing the node location in heterogeneous media. In this energy consumption model we use both static and dynamic sensor nodes to monitor the optimized energy of all sensor nodes in which every sensor state can be considered as the dynamic Bayesian network. By using this method the power is assigned in terms of dynamic manner to each sensor over discrete time steps to control the graphical structure of our network. The simulation and experiment result shows that our proposed methods are better in terms of localization accuracy and possess minimum computational time over existing localization method

    Local Magnetic Field Role in Star Formation

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    We highlight distinct and systematic observational features of magnetic field morphologies in polarized submm dust continuum. We illustrate this with specific examples and show statistical trends from a sample of 50 star-forming regions.Comment: 4 pages, 3 figures; to appear in the EAS Proceedings of the 6th Zermatt ISM Symposium "Conditions and Impact of Star Formation from Lab to Space", September 201

    Probing the Parsec-scale Accretion Flow of 3C 84 with Millimeter Polarimetry

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    We report the discovery of Faraday rotation toward radio source 3C 84, the active galactic nucleus in NGC1275 at the core of the Perseus Cluster. The rotation measure (RM), determined from polarization observations at wavelengths of 1.3 and 0.9 mm, is (8.7 +/- 2.3) x 10^5 radians/m^2, among the largest ever measured. The RM remained relatively constant over a 2 year period even as the intrinsic polarization position angle wrapped through a span of 300 degrees. The Faraday rotation is likely to originate either in the boundary layer of the radio jet from the nucleus, or in the accretion flow onto the central black hole. The accretion flow probably is disk-like rather than spherical on scales of less than a parsec, otherwise the RM would be even larger.Comment: 7 pages, 3 figures, accepted for publication in Ap

    BMP-SMAD Signaling Regulates Lineage Priming, but Is Dispensable for Self-Renewal in Mouse Embryonic Stem Cells

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    Naive mouse embryonic stem cells (mESCs) are in a metastable state and fluctuate between inner cell mass- and epiblast-like phenotypes. Here, we show transient activation of the BMP-SMAD signaling pathway in mESCs containing a BMP-SMAD responsive reporter transgene. Activation of the BMP-SMAD reporter transgene in naive mESCs correlated with lower levels of genomic DNA methylation, high expression of 5-methylcytosine hydroxylases Tet1/2 and low levels of DNA methyltransferases Dnmt3a/b. Moreover, naive mESCs, in which the BMP-SMAD reporter transgene was activated, showed higher resistance to differentiation. Using double Smad1;Smad5 knockout mESCs, we showed that BMP-SMAD signaling is dispensable for self-renewal in both naive and ground state. These mutant mESCs were still pluripotent, but they exhibited higher levels of DNA methylation than their wild-type counterparts and had a higher propensity to differentiate. We showed that BMP-SMAD signaling modulates lineage priming in mESCs, by transiently regulating the enzymatic machinery responsible for DNA methylation
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