493 research outputs found

    ENTREPRENEUR ECOSYSTEM: THE INDIAN PERSPECTIVE

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    In this paper researcher has discussed aspects of entrepreneur ecosystem and how they are collaborate with each other to generate employment. Different models regarding entrepreneurship ecosystem are suggested by eminent economist focuses on the entrepreneurial personality, the entrepreneurial process, and the entrepreneurial development of a region. Government policies, finance, culture, support, human capital and market are the key contributors to the entrepreneurship ecosystem. In India, public sector and large private sector organizations failed to generate adequate number of jobs. Hence India has geared up to adopt the culture of startups with 4200 startups till 2014. Indian government also supports this ecosystem by providing funds, technology and necessary infrastructure. With business friendly environment India can replicate the success story of IT and ITES sector which contributes 9 percent to Indian GDP

    A study of Cyber Awareness of the College Students

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    What is cyber security and why should we care? Cyber security has become a new concept in the last decade. We live in a world where technology is integrated into our daily lives. We spend more and more time using the internet for work, education and socializing. Being part of this cyber world is no longer a luxury, but a necessity for many cyber users so it can be said that “We are becoming the cyber generationâ€. While these advances are making our daily lives easier they are also adding extra risks to our personal information. Most people do not think about their identities getting stolen when they make an online transaction, check their email, or use social media. However, each time that you put your personal information on the Internet you are at risk of that information getting stolen Therefore one needs to understand the possible cyber threats associated with using cyber devices and tools such as mobile phones, tablets and desktops, and connectivity to the Internet. There are many simple ways that these risks can be reduced, but it starts with cyber security awareness.  Ideally, all cyber users should understand the technology they use and how to use it properly and safely

    Resonant Raman of OH/OD vibrations and photoluminescence studies in LiTaO3 thin film

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    Resonant Raman spectra (RRS) of O-H and O-D vibration and libration modes, their combinations and higher harmonics have been observed in LiTaO3 polycrystalline thin films. RRS peaks are superimposed on photoluminescence (PL) spectrum. Monochromatic light from a xenon lamp is used as excitation source. PL spectrum shows two broad peaks, first near the band gap in UV (4.4-4.8eV) and another in the sub band gap region (< 4.0 eV). Band gap PL along with RRS peaks are reported for the first time. Photoluminescence excitation spectrum (PLE) shows a peak at 4.8 eV. Peak positions and full width at half maximum (FWHM) of RRS peaks depend upon the excitation energy. Dispersions of the fundamental and the third harmonic of the stretching mode of O-H with excitation energy are about 800 cm-1/eV and 2000 cm-1/eV respectively. This dispersion is much higher than reported in any other material.Comment: 20 page

    Effect of strain on the phase separation and devitrification of the magnetic glass state in thin films of La<SUB>5/8-y</SUB>Pr<SUB>y</SUB>Ca<SUB>3/8</SUB>MnO<SUB>3</SUB> (y= 0.45)

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    We present our study of the effect of substrate induced strain on La5/8 - yPryCa3/8MnO3 (y = 0.45) thin films grown on LaAlO3, NdGaO3 and SrTiO3 substrates that show large scale phase separation. It is observed that unstrained films grown on NdGaO3 behave quite similarly to bulk material but the strained films grown on SrTiO3 show melting of the insulating phase to the metallic phase at low temperatures. However, the large scale phase separation and metastable glass-like state is observed in all the films despite differences in substrate induced strain. The measurements of resistivity as a function of temperature under a cooling and heating in unequal field (CHUF) protocol elucidate the presence of a glass-like metastable phase generated due to kinetic arrest of the first order transformation in all the films. Like structural glasses, these magnetic glass-like phases show evidence of devitrification of the arrested charge order antiferromagnetic insulator (CO-AFI) phase to the equilibrium ferromagnetic metallic (FMM) phase with isothermal increase of magnetic field and/or iso-field warming. These measurements also clearly show the equilibrium ground state of this system to be FMM and the metastable glass-like phase to be AFI phase

    A Novel Technique of Uterine Manipulation in Laparoscopic Pelvic Oncosurgical Procedures: “The Uterine Hitch Technique”

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    Aim. To describe a new technique of uterine manipulation in laparoscopic management of pelvic cancers. Material and Methods. We used a novel uterine hitch technique in 23 patients from May 2008 to October 2008. These patients underwent pelvic oncologic surgery including laparoscopic radical hysterectomy (n = 7), laparoscopic anterior resection (n = 4), laparoscopic abdominoperineal resection (n = 3), laparoscopic posterior exenteration (n = 4), or laparoscopic anterior exenteration (n = 5). The uterus was hitched to the anterior abdominal.wall by either a single suture in the fundus or by sutures through the round ligaments. Results. The uterine hitch technique was successfully accomplished in all procedures. It was performed in less than 5 minutes in all cases. It obviated the need for vaginal manipulation. An extra port for retraction could be avoided. There were no intraoperative complications. Conclusion. A practical, cheap and reproducible method for uterine manipulation, during pelvic oncologic surgery is described. It improves the stability of the uterus and also obviates the need for keeping an additional assistant for vaginal manipulation in any of the procedures

    Multiple exciton generation in VO2

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    Multiple exciton generation (MEG) is a widely studied phenomenon in semiconductor nanocrystals and quantum dots, aimed at improving the energy conversion efficiency of solar cells. MEG is the process wherein incident photon energy is significantly larger than the band gap, and the resulting photoexcited carriers relax by generating additional electron-hole pairs, rather than decaying by heat dissipation. Here, we present an experimental demonstration of MEG in a prototype strongly correlated material, VO2, through photocurrent spectroscopy and ultrafast transient reflectivity measurements, both of which are considered the most prominent ways for detecting MEG in working devices. The key result of this paper is the observation of MEG at room temperature (in a correlated insulating phase of VO2), and the estimated threshold for MEG is 3Eg. We demonstrate an escalated photocurrent due to MEG in VO2, and quantum efficiency is found to exceed 100%. Our studies suggest that this phenomenon is a manifestation of expeditious impact ionization due to stronger electron correlations and could be exploited in a large number of strongly correlated materials.Comment: 6 pages, 5 figures, Physical Review
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