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Data has become the enabling technology for many of the recent innovations. "More data trumps smarter algorithms" has been the mantra behind this revolution in computing. Given the rate at which the data is produced, there is need for scalable solutions to extract information out of them. Allowing the data to be stored in the cloud and be accessed without geographical and scalability limitations will remove many bottlenecks in bringing data-oriented innovations. Current cloud architecture solves the issues of accessibility and scalability, but poses several new challenges such as automatic management of the service, pricing the data, and security of the data. This talk will include several techniques to address these challenges using automatic physical design, service-based pricing, and cryptographic mechanisms. Data , Information , Knowledge , Intelligence.
We consider a class of ratio-cum-dual to product estimator for estimating a finite population mean of the study variate. The bias and mean square error of the proposed estimator have been obtained. The asymptotically optimum estimator (AOE) in this class has also been identified along with its approximate bias and mean square error. Theoretical and empirical studies have been done to demonstrate the superiority of the proposed estimator over the other estimators.
Investigations were made on the blood of Mastacembelus armatus exposed to heavy metals (Cu, Ni, Fe, Co, Mn, Cr and Zn). The study reveals the contamination of Harduaganj Reservoir with heavy metals. The heavy metal content in reservoir water were in the order of Fe > Cu > Zn > Mn > Ni > Co > Cr. The values for the heavy metals such as Fe (8.71 mgL-1), Ni (0.12 mgL-1), and Mn (0.21 mgL-1) were higher than the limits suggested by UNEPGEMS. Whereas the concentration of heavy metals Cu, Cr and Zn were within the limits proposed. Mastacembelus armatus thriving in the reservoir water exhibited the influence of contamination.The exposed fish showed the significant decrease in total RBC count (2.16 x106mm-3), significant increase in total WBC count (3.84 x 103 mm3) and insignificant decrease in Hb (9.48 gdL-1) and when compared to control.
This study provides panel data evidence on the determinants of foreign direct investment (FDI) for a sample of 45 African countries over the period 1980 to 2009. Using dynamic panel data estimation techniques, the study identifies a number of factors that affect FDI flows in Africa, including, agglomeration economies, natural resources, real GDP growth, and international investmentgreements. The study also shows that the Africa-wide environment has become more conducive to FDI since the year 2000.
Neck muscles of the rolling pigeons are excited through shaking or auto or continuous excitation. Though the tumbling is backward; the neck muscle is a great factor for this. Flying tumbler pigeon rolls during flying; here flying velocity and height is a fator but parlor tumbler when fly its neck muscles not excited. Lateral shaking is responsible for tumbling not shakes of dorso ventrally. Normally tumblers are two types that are tumbler and roller. Then tumbler divides house or parlor tumbler and flying tumbler. On the other hand roller or parlor rollers are two types which are autoroller and shaking/non shaking roller. In the tumbler pigeon family there are a lot of flying tumblers (fly at night, great height), tippler (fly 22 hours, first in UK in 1971) by the cross between tumbler and Cumulet (fly 10 hours) from France (sustained flight, rapid tumble, short flying tumbling, auto tumbler), highflier (fly 15 hours, elongated body) but only dasti (common) tumbles till tired, kalami (strike on the beak), havai (short tumble then fly), auto parlor tumblers (like epilepsy disease) excited any internal and external factors which induces chemical reaction for tumbling. Anticonvulsant drugs are effective on pigeons tumbling.
Dimethyl sulphoxide –acetic anhydride reagent brings about an easy conversion of 1,3-indandione to its corresponding derivatives.At room.temperature this reagent converts 1,3- indandione to ylide(2),an unusual dimer(3) and a novel dimeric condensation product(6).However,at waterbath temperature it affords a spiran(8) along with (2) &(6).
Thorium(IV) complexes have been synthesized by reacting Th(IV) nitrate with Schiff bases derived from 3-substituted-4-amino-5-mercapto-1,2,4-triazole and glyoxal/ biacetyl/ benzyl in ethanol. These complexes have been characterized on the basis of elemental analysis, molar conductance and spectral studies. Analytical and spectral data suggest structures in which Th(IV) is six coordinated. All these complexes are light yellow in colour and are insoluble in DMF and DMSO. The elemental analysis show that, the complexes analysed for 1:1 stoichiometry of the type, Th.LH2(NO3)4.Conductance measurement in DMF are too low to account for any dissociation of these complexes in DMF at the concentration of the 10-3M.
This study shows strong seasonality of ground level ozone concentrations with spring (September and October) maximum and winter (May and June) minimum levels. The levels were observed in decreasing order per season as: spring>summer>autumn>winter. The Johannesburg ozone levels were much lower than Botsalano and Marikana levels. The monthly levels for the 2007 to 2008 period were determined in order of decreasing abundance as Marikana (21.07 – 50.02 ppb), Botsalano (28.17 – 37.94 ppb), Buccleuch (2.03 – 23.42 ppb), Delta (5.76 – 17.32 ppb) and Newtown (1.73 – 17.19 ppb). The precursors of ozone (NOx, NO2, and NO) also showed peaks in winter (May-June). Anti- correlation of ozone and its precursors (NOx, NO2, and NO) were also observed. The authors also conclude that the formation of ozone in Johannesburg occurs under the VOC-sensitive regime, and that the possible sources of ozone in the city are vehicular and industrial and businesses.
This research was triggered by enthusiasm to conduct a comparative models experiment of indicators of Millennium Development Goals (MDGs) interaction with economic growth. To achieve the objectives of this research, three sets of econometric model were developed and thoroughly subjected to statistical analysis to determine MDGs models efficiency. The methodology employed is experimental approach to MDGs’ indicators in the economy. The research revealed that, the second model is the best, more robust and contributes more in explaining the relationship between MDGs indicators and the economic growth. The third model was rated poor, while the first model was rated moderate in explaining MDGs indicators influence in the economy. The paper concludes that, this short run dynamic analysis can be extended to a long run analysis. It further provides policy makers in developing countries with unique analytical relationship between real growth rate of the economy and MDGs i ndelling.
The Mesopotamian marshlands, the largest wetland in the Middle East and one of the most outstanding in the world have been lost mainly as a result of drainage and damming. The cause of the decline is mainly as a result of damming upstream as well as drainage schemes since the 1970s. The Tigris and the Euphrates are amongst the most intensively dammed rivers in the world. In the past 40 years, tThe Mesopotamian marshlands, the largest wetland in the Middle East and one of the most outstanding in the world have been lost mainly as a result of drainage and damming. The cause of the decline is mainly as a result of damming upstream as well as drainage schemes since the 1970s. The Tigris and the Euphrates are amongst the most intensively dammed rivers in the world. In the past 40 years, the two rivers have been fragmented by the construction of more than 30 large dams, whose storage capacity is several times greater than the volume of both rivers. The immediate cause of marshland loss, however, has been the massive drainage works implemented in southern Iraq in the early 1990s, following the second Gulf War. Satellite images provide hard evidence that the once extensive marshlands have dried-up and regressed into desert, with vast stretches salt encrusted. Recent satellite imagery shows only limited areas of the marshlands have been reclaimed.he two rivers have been fragmented by the construction of more than 30 large dams, whose storage capacity is several times greater than the volume of both rivers. The immediate cause of marshland loss, however, has been the massive drainage works implemented in southern Iraq in the early 1990s, following the second Gulf War. Satellite images provide hard evidence that the once extensive marshlands have dried-up and regressed into desert, with vast stretches salt encrusted. Recent satellite imagery shows only limited areas of the marshlands have been reclaimed.