756 research outputs found
ENTREPRENEUR ECOSYSTEM: THE INDIAN PERSPECTIVE
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
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
Energy optimization in fishing through m-KRISHIm Fisheries Service in Raigad district, Maharashtra
Energy optimization in fishing through
m-KRISHIm Fisheries Service in Raigad
district, Maharashtr
HPLC METHOD DEVELOPMENT AND VALIDATION FOR QUANTITATION OF TRIGONELLINE FROM MIRABILIS JALAPA LINN. LEAVES AND ENHANCEMENT IN EXTRACTION YIELD FROM ULTRA FINE POWDER
Objective: Development and validation of a simple and reliable HPLC method for determination of an alkaloid, trigonelline, in the methanolic extract of Mirabilis jalapa Linn. leaves and comparing the extraction yields of trigonelline from micro powder and ultrafine powder.Methods: The quantitation of trigonelline was carried out on a Phenomenex (Luna 5 U RP C8 (2) column, 25 cm x 4.6 mm, i.d. 5 µm), using mobile phase comprising of distilled water containing HCl (pH adjusted to 3.5) and methanol in the volume ratio of 70:30, which was delivered at the flow rate of 0.5 ml per min, at 35 °C column temperature. The detection and quantitation of trigonelline were carried out using PDA detector at the wavelength λ=264 nm.Ultra-fine powder of Mirabilis jalapa Linn. was prepared using simple stepwise powdering method. The dried leaves of Mirabilis jalapa Linn. were ground using ice jacketed domestic mixer. This powder was sieved through a BSS 85 mesh sieve and considered as a micro powder. Further fine grinding was done by jet milling, followed by ball milling. This powder was considered as an ultra-fine powder.Results: The proposed HPLC method for quantitation of trigonelline from dried leaf powder of Mirabilis jalapa Linn. is rapid, simple, accurate and precise.Conclusion: The amount of trigonelline obtained using methanolic extracts of Mirabilis jalapa Linn. Ultra-fine powder and the micro powder was found to be 1.1103 mg/g and 0.7258 mg/g respectively
Resonant Raman of OH/OD vibrations and photoluminescence studies in LiTaO3 thin film
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
Spin-lattice coupling mediated giant magnetodielectricity across the spin reorientation in Ca2FeCoO5
The structural, phonon, magnetic, dielectric, and magneto dielectric
responses of the pure bulk Brownmillerite compound Ca2FeCoO5 are reported. This
compound showed giant magneto dielectric response (10%-24%) induced by strong
spin-lattice coupling across its spin reorientation transition (150-250 K). The
role of two Debye temperatures pertaining to differently coordinated sites in
the dielectric relaxations is established. The positive giant
magneto-dielectricity is shown to be a direct consequence of the modulations in
the lattice degrees of freedom through applied external field across the spin
reorientation transition. Our study illustrates novel control of
magneto-dielectricity by tuning the spin reorientation transition in a material
that possess strong spin lattice coupling.Comment: 7 pages, 12 figure
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)
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
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