Evolution of singlet structure functions from DGLAP equation at next-to-next-to-leading order at small-x

A semi-numerical solution to Dokshitzer- Gribov-Lipatov-Altarelli-Parisi (DGLAP) evolution equations at leading order (LO), next-to-leading order (NLO) and next-to-next-to-leading order (NNLO) in the small-x limit is presented. Here we have used Taylor series expansion method to solve the evolution equations and, t- and x-evolutions of the singlet structure functions have been obtained with such solution. We have also calculated t- and x-evolutions of deuteron structure functions F_2^d, and the results are compared with the E665 data and NMC data. The results are also compared to those obtained by the fit to F_2^d produced by the NNPDF collaboration based on the NMC and BCDMS data.Comment: 26 pages, 6 figure

Knowledgezoom for java: A concept-based exam study tool with a zoomable open student model

This paper presents our attempt to develop a personalized exam preparation tool for Java/OOP classes based on a fine-grained concept model of Java knowledge. Our goal was to explore two most popular student model-based approaches: open student modeling and problem sequencing. The result of our work is a Java exam preparation tool, Knowledge Zoom. The tool combines an open concept-level student model component, Knowledge Explorer and a concept-based sequencing component, Knowledge Maximizer into a single interface. This paper presents both components of Knowledge Zoom, reports results of its evaluation, and discusses lessons learned. © 2013 IEEE

Method of characteristics and solution of DGLAP evolution equation in leading order (LO) and next to leading order (NLO) at small-x

In this paper the singlet and non-singlet structure functions have been obtained by solving Dokshitzer, Gribove, Lipatov, Alterelli, Parisi (DGLAP) evolution equations in leading order (LO) and next to leading order (NLO) at the small x limit. Here we have used a Taylor Series expansion and then the method of characteristics to solve the evolution equations. We have also calculated t and x-evolutions of deuteron structure function and the results are compared with the New Muon Collaboration (NMC) data.Comment: 16 pages including 7 figure

Zt.Zztin the Anthropocene: arthropod flesh, solar-strip skin and Anthropocene time in The Old Drif

While Namwali Serpell’s novel "The Old Drift" can be read as a fictional account of colonial and post-colonial Zambian history, this article focuses on the text’s exploration of Anthropocene time—geobiochemical and planetary temporal scales that predate human histories, while also gesturing towards futures where "Homo sapiens" may be absent. This article focuses on deep temporality in the novel via the use of mosquito and Moskeetoze (mosquito-like microdrones) narrators. While mosquitoes facilitate encounters with the deep past and of entangled human-nonhuman histories, the Moskeetozes enable representations of the vicissitudes of the “Anthrobscene” (Parrikka) and the creative potentialities of improvised life that emerge in hazardscapes in the Global South. Additionally, "The Old Drift" gestures towards a speculative planetary future where mosquitoes and Moskeetozes integrate to evolve new modalities of swarm intelligence and forms of life.Mientras que la novela “The Old Drift” de Namwali Serpell puede leerse como un relato ficticio de la historia colonial y postcolonial de Zambia, este artículo se centra en cómo la obra explora la era del Antropoceno—las escalas temporales geobioquímicas y planetarias que preceden las historias humanas, a la vez que hacen un gesto hacia los futuros en los que el Homo sapiens puede estar ausente. Este artículo se centra en la profunda temporalidad en la novela por medio del uso del mosquito y del “Moskeetoze” (microdrones que parecen mosquitos) como narradores. Mientras que los mosquitos facilitan los encuentros con el pasado profundo y de historias entrelazadas de humanos y no-humanos, los “Moskeetozes” permiten representar las vicisitudes del “Antrobsceno” (Parrikka) y las posibilidades creativas de la vida improvisada que surge en los paisajes peligrosos del sur global. Además, “The Old Drift” hace un gesto hacia un futuro planetario especulativo en el que los mosquitos y los “Moskeetoze” se integran para desarrollar nuevas formas de inteligencia de enjambre y nuevas formas de vida

GROWTH PERFORMANCE OF SNAKESKIN GOURAMI, TRICHOGASTER PECTORALIS (REGAN, 1910) THROUGH WEANING STRATEGIES

For successful venture in ornamental fish seed production proper nourishment at different life stages holds the key. Growth and survival of fry of snakeskin gourami, Trichogaster pectoralis by using mixed zooplankton and formulated feed was evaluated during this study. Fry of snakeskin gourami, Trichogaster pectoralis was weaned from mixed zooplankton to formulated feed. Snakeskin gourami, Trichogaster pectoralis fry (1.6 ± 0.06cm initial length and 0.39 ± 0.003g initial body weight) were fed with mixed zooplankton (T1) and formulated feed (T2), and combination of both live food and formulated feed in case of weaning treatments i.e. weaning at day 6 (T3), the reduction in quantity of mixed zooplankton were performed at day 2, 4 and 6. Similarly for weaning treatment T4 (weaning at day 12), these changes were made at day 6, 9 and 12 and for weaning treatment T5 (weaning at day 24) at day 12, 18 and 24. The fish weaned at day 24 (T5) had the highest average length gain and differed significantly (p < 0.05) from fry fed mixed zooplankton (T1). In case of average weight gain, specific growth rate and survival fry weaned at day 24 were highest and differed significantly (p < 0.05) from fry fed mixed zooplankton (T1), formulated feed (T2) and combination of both live food and formulated feed (T3 and T4). This study showed that replacement of mixed zooplankton by formulated feed at day 24 i.e. late weaning appears feasible. The fry weaned at day 24 (T5) showed significant increase in growth and survival from initial stocking i.e. 3.65 ± 0.13cm length, 0.85 ± 0.01g weight and 97.50 ± 2.50% survival respectively

Estimating the Characteristics of the Forward Voltage Gain Scattering Parameter of Indoor Power Line Channel Using Only Input Port Measurement

Estimation of the characteristics of power line channel is a pre-requisite for successful implementation of any power line communication system. This paper presents a method to estimate the forward voltage gain scattering parameters (S21) of an indoor power line using only the input port reflection coefficient (S11). The measured input parameter with one/two load placed at the output suffices to estimate the S21 as far as frequency selectivity is concerned. The positions of notches can be estimated within a limit of error with positive and at times high correlation between the experimental and evaluated S21 parameters. The method is validated for a number of practical networks, and also for random channels with different types of loads and cables found in the papers. The procedure can be incorporated in estimating the channel for mitigating the related problems

Yield Gap Analysis of Rapeseed (Brassica campestris var. Toria) in Kokrajhar District of Assam, India

The present study was carried out at five different villages of Kokrajhar district of Assam where cluster front line demonstration (CFLD) of High Yielding Variety (HYV) of rape seed (TS 46) was conducted by Krishi Vigyan Kendra, Kokrajhar.  A total of 652 nos. of front line demonstration (FLD)s were evaluated to find out the yield gaps between HYV toria variety TS 46 and variety grown by farmers. Yield data of both demonstration and farmers practice were recorded and their yield gap, technology gap, extension gap and technology index were analyzed. The yield of rape seed variety TS 46 was registered 22.38 to 50.00 per cent higher over farmer’s variety. On an average technology gap, extension gap and technology index were recorded as 2.28qha-1, 2.08 qha-1 and 20.73 per cent respectively