446 research outputs found

    Dr. Monti Datta – Faculty Author Interview

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    Dr. Monti Datta, Assistant Professor of Political Science, discusses his forthcoming new book, Anti-Americanism and the Rise of World Opinion. Drawing from a wealth of research data, interviews and surveys of social media, this book directly examines pro- and anti-American views and asks what we can learn about the nature and impact of world opinion. By treating anti-Americanism as a case study of public opinion at work, Professor Datta reveals how we can better understand the relationship between global citizens and their political leaders, and concludes that anti-Americanism does in fact substantially impact US security, as well as its economic and political interests

    Modeling of spin transport in MTJ devices

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    Spin-Transfer Torque Random Access Memory (STT-RAM) is a promising candidate for the next generation universal memory technology, with a combination of non-volatility, high endurance, high speed, and better scalability compared to existing memory technologies. The key building block of the operation of STT-RAM is the Magnetic Tunnel Junction (MTJ) device, which uses spin polarized currents instead of magnetic fields to read/ write magnetic bits. While the read process is largely determined by the charge current, the spin current is critical to the write process. This thesis presents a Non-equilibrium Green\u27s Function (NEGF) based transport model for MTJ devices that allows us to model both charge and spin currents accurately. Although there are several experiments describing the bias and switching behavior of MTJ, none of the existing theoretical models correctly provide quantitative agreement with experiments. Using our model, we show: (1) good agreement with diverse experimental measurements like resistance and spin torques; (2) provide simple explanation for bias dependences of the torques; and (3) propose an asymmetric STT device, which has the potential of switching in non-reciprocal way. Furthermore, we present an analytical expression for the spin current starting from the current operator expression; we discuss about the formalism of Non-Equilibrium spin current in the coherent transport regime and discuss initial results for a possible approach to developing a compact model for STT-RAM cell integrable with CMOS circuits

    Tapping Economies of Scale and Scope in Consumer Cooperation - A Case Analysis of Possible Cooperation among selected Cooperatives

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    Because of its narrow and negative perspective of safeguarding the interests of only poor consumers against unethical practices of the private traders, consumer cooperation in India seems to have failed, except probably in some isolated pockets. A number of social welfare functions like poverty alleviation and public distribution of essential items of consumption have been imposed on them at the cost of their basic economics. With the basic micro and macro-economic rationale for consumer cooperatives as a positive form of economic organization being lost sight of, they seem to be facing enormous problems both historically as well as currently in a era of economic liberalization. Their worries seem to have been compounded with the threat of impending competition from large private enterpriss - both domestic and foreign, which highlights the need for evolving strategies to rectivy their systemic weaknesses and tackling the competition head on. This case has attempted to document just such an initiative through a round table conference with several doyens of the consumer cooperative movement in India such as Warana Bazar and Amalsad Mandali as well as some fledging consumer cooperatives from West Bengal which are already in existence for some time or contemplating entry into this field. The roundtable conference organized in the spirit of Cooperation among Cooperatives attempted to evolve strategies to capture economies of scale and scope in order to take on the competition, as well as to facilitate dissemination of ideas and information across the country.

    Aspek Sosiologi Pengarang Pada Struktur Batin Puisi Watashi Ga Ichiban Kirei Datta Toki

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    Abstrak Penelitian ini bertujuan untuk mengetahui hubungan aspek sosiologi pengarang dengan struktur batin puisi Watashi ga Ichiban Kirei Datta Toki Karya Ibaragi Noriko. Penelitian ini menggunakan metode deskriptif analisis, dengan pendekatan sosiologi pengarang oleh  Wellek dan Warren (1994). Penelitian ini dilakukan dengan mendeskripsikan objek penelitian kemudian menganalisis hubungan aspek sosiologi pengarang dengan struktur batin puisi. Hasil penelitian ini adalah terdapat hubungan aspek sosiologi pengarang dengan struktur batin puisi, yaitu pada aspek status sosial pengarang dengan tema dan aspek latar belakang sosial budaya pengarang dengan amanat. Dari hasil penelitian tersebut, dapat diketahui bahwa puisi Watashi ga Ichiban Kirei Datta Toki ditulis oleh Ibaragi Noriko berdasarkan peristiwa yang terjadi dalam hidupnya.   Kata Kunci : puisi, struktur batin, sosiologi pengarang   Abstract This research aims to determine the relationship of the sociological aspects of the author with the inner structure of the poetry Watashi ga Ichiban Kirei Datta Toki by Ibaragi Noriko. This research uses descriptive analysis method, with the author\u27s sociology approach by Wellek and Warren (1994). This research was conducted by describing the object of research then analyzing the relationship of the sociological aspects of the author with the inner structure of the poetry. The result of this research is that there is a relationship between the sociological aspects of the author with the inner structure of poetry, namely on the aspect of the author\u27s social status with the theme and aspect of the author\u27s socio-cultural background with the mandate. From the results of this research, it can be seen that the poetry Watashi ga Ichiban Kirei Datta Toki was written by Ibaragi Noriko based on events that occurred in his life.   Keywords : poetry, inner structure, author\u27s sociolog

    Cyana arorai Volynkin, N. Singh, Kirti & Datta 2020, nom. nov.

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    Cyana arorai Volynkin, N. Singh, Kirti & Datta, nom. nov. (Figs 15–19, 168, 169, 241, 242) = Chionaema tripunctata Rothschild, 1936, The Annals and magazine of natural history (10) 17: 487 (Type locality: “ Aberdeen, Andaman Islands”), nec. Reich, 1935. Type material examined. Holotype (by monotypy) (Fig. 17): ♀, handwritten label “ Aberdeen, Andamans” / hand- written label “ Chionaema tripunctata Type Rothsch.” / handwritten label “Nr. bianca, but has 3 spots” / printed label “Rothschild Bequest B.M. 1939–1” / printed round label with a red circle “Type” / printed label with a unique identifier “NHMUK010402088” (Coll. NHMUK). Other material examined. THE ANDAMAN AND NICOBAR ISLANDS: 1 ♀, Andaman Isles ♀ / Moore Coll. 94–106, slide NHMUK010314603 Volynkin (Coll. NHMUK); 2 ♂, 3 ♀, India, M. Andaman, Karmatang, 1.5 km E, 12,5072°N, 92,5610°E, 17–22.VIII.2001, leg. Jan-Peter Rudloff, coll. Dr. R. Brechlin, slides MWM 33907 (♂), MWM 33908 (♀), MWM 35680 (♀) Volynkin (Coll. MWM / ZSM); 2 ♂, 4 ♀, India, S. Andaman, Port Blair—Mt. Harriet, 11,4321°N, 92,4403°E, 23–24.VIII.2001, leg. Jan-Peter Rudloff, coll. Dr. R. Brechlin, slides MWM 34601 (♂), MWM 34602 (♀) Volynkin (Coll. MWM / ZSM); 1 ♂, 2 ♀, India, Andaman Islands, South Anda- man—Bambooflat (Rainfor.), 11°42’82”N, 092°42’02”E, 27–28.XI.2000, leg. J.P. Rudloff, slide MWM 35681 (♂) Volynkin (Coll. MWM / ZSM); 1 ♂, India, Andaman Isl., South Andaman, Wandoor, Port Blair, 1–2.III.1998, leg. A. Kamenev & V. Siniaev, ex coll. Dr. A. Schintlmeister, slide MWM 34564 (♂) Volynkin (Coll. MWM / ZSM); 1 ♂, Andaman & Nicobar Islands, South Andaman, Chidiyatapu, 29.XII.17, leg. H.S. Datta (Coll. NZCZSI). Etymology. The replacement name is dedicated to G.S. Arora, author of the basic publication on the fauna of the Andaman and Nicobar Islands. Remark. The taxon tripunctata Reich, 1935 was described under the genus Lyclene. Here we transfer it to the genus Cyana and synonymize with C. detrita (see above). Thus, at present there are two Cyana taxa with the name tripunctata, so tripunctata Rothschild, 1936 becomes a junior secondary homonym of tripunctata Reich, 1935. Hence, we introduce the replacement name arorai nom. nov. for tripunctata Rothschild, 1936. Diagnosis. Forewing length is 12.5–15 mm in males and 17–18 mm in females. Cyana arorai is a polymorphic species, significantly variable in size. Cyana arorai is similar externally to C. carmina (Figs 13, 14), but differs by its arcuate antemedial line (that is oblique in C. carmina) and larger black discal spots. In females of C. arorai a third, posterior black spot may be developed (Figs 16, 17), what is unusual for the C. insularis group. The female genitalia of C. arorai are very similar to those of C. carmina (Figs 239, 240), but differ by the more heavily sclerotized cervix bursae having narrower longitudinal folds, and the lateral band-like signum being more weakly sclerotized subanteriorly with its anterior end strongly broadened. Distribution. Endemic of the Andaman Islands. The records of C. bianca (male) and C. coccinea (female) for the Andaman Islands (Hampson 1900; Draudt 1914; Arora 1983) belong to C. arorai.Published as part of Singh, Navneet, Volynkin, Anton V., Kirti, Jagbir Singh, Datta, Harvinder Singh & Ivanova, Maria S., 2020, A review of the genus Cyana Walker, 1854 from India, with descriptions of five new species and three new subspecies (Lepidoptera: Erebidae: Arctiinae: Lithosiini), pp. 1-93 in Zootaxa 4738 (1) on page 10, DOI: 10.11646/zootaxa.4738.1.1, http://zenodo.org/record/367243

    Web demo suite for classical ciphers

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    This project aims to implement a web-based application that includes well-known classical ciphers as an accompany learning material for students studying cryptography. This project is developed using frameworks such as HTML5 and Bootstrap. This report includes further details of the methodology adopted by the author while developing the web-based application. The author took note of other technical considerations and software design models while creating the web-based application. The web application is developed solely by the author. Suggestions given by Assoc Prof Anwitaman Datta are implemented in best effort during the course of this project. The web-based application described in this report can be found at the following website: http://ryan2706.github.io/SCE15-0041/index.htmlBachelor of Engineering (Computer Science

    Evolutionary Algorithms for Designing Self-sufficient Floating Neighborhoods

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    Floating neighborhoods are innovative and promising urban areas for challenges in the development of cities and settlements. However, this design task requires a lot of considerations and technical challenges. Computational tools and methods can be beneficial to tackle the complexity of floating neighborhood design. This paper considers the design of a self-sufficient floating neighborhood by using computational intelligence techniques. In this respect, we consider a design problem for locating each neighborhood function in each cluster with a certain density within a floating neighborhood. In order to develop a self-sufficient floating neighborhood, we propose multi-objective evolutionary algorithms, namely, a self-adaptive real-coded genetic algorithm (CGA) as well as a self-adaptive real-coded genetic algorithm (CGA_DE) employing mutation operator of differential evolution algorithm. The only difference between CGA and CGA_DE is the fact that CGA uses random immigration of certain individuals into the population as a mutation operator whereas in the mutation phase of CGA_DE algorithm, the traditional mutation operator DE/rand/1/bin of DE algorithms. The arrangement of individual functions to develop each neighborhood function is further elaborated and formed by using Voronoi diagram algorithm. An application to design a self-sufficient floating neighborhood in Urla district, which is on the west coast of Turkey, İzmir, is presented.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Design Informatic

    A developmental switch in microglial HDAC function

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    The epigenetic mechanisms controlling microglia functions are largely unknown. In this issue of Immunity, Datta et al. (2018) uncover surprising and distinct effects of deleting the epigenetic regulators HDAC1 and HDAC2 during microglial development versus during the course of neurodegeneration
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