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

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

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

Pattern of regional metastasis in papillary thyroid cancer: our experience of 86 cases

Background: Papillary thyroid cancer (PTC) have a high propensity for regional metastasis which ranges from 30- 80%. The objective of the study is to assess the pattern of lymph node metastasis and to plan the extent of neck dissection accordingly. Though central neck dissection (CND) is routinely done in PTC but the indication of extent of  neck dissection is still controversial.Methods: The medical records of   86 patients with PTC  who underwent total thyroidectomy (TT) and neck dissection at Dr. B. Borooah Cancer Institute(BBCI) from January 2010 to  December 2014 were retrospectively reviewed.Results: Out of 86 patients 22 were males and 64 were females. The median age of presentation was 40.0 years. 43 out of 86 patients (50%) had cervical lymph node metastasis. Ipsilateral nodal metastasis was found in 37 patients (43.0%) and contralateral metastasis was found in only 6 patients (7.0%).Tumors with size more than 3cm had ipsilateral nodal metastasis in 21(56.7%) patients which is statistically significant (p 0.03).A strong association was found between level VI and the ipsilateral group of lymph nodes involving level II,III,IV and V.Conclusions: Majority of patients present with multiple level nodal metastasis, with the central compartment commonly involved. In view of the high incidence of metastatic lymph nodes in levels II, III, IV and level VI ,our study  supports the recommendation  for posterolateral  and anterior  neck dissection in patients with clinically positive neck  nodes and tumor with aggressive criteria

Study of Interface Charge Densities for ZrO 2

A thickness-dependent interfacial distribution of oxide charges for thin metal oxide semiconductor (MOS) structures using high-k materials ZrO2 and HfO2 has been methodically investigated. The interface charge densities are analyzed using capacitance-voltage (C-V) method and also conductance (G-V) method. It indicates that, by reducing the effective oxide thickness (EOT), the interface charge densities (Dit) increases linearly. For the same EOT, Dit has been found for the materials to be of the order of 1012 cm−2 eV−1 and it is originated to be in good agreement with published fabrication results at p-type doping level of 1×1017 cm−3. Numerical calculations and solutions are performed by MATLAB and device simulation is done by ATLAS