178,916 research outputs found
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Minimizing Absolute Gaussian Curvature Locally
No full textOne of the remaining challenges when reconstructing a surface from a
finite sample is recovering non-smooth surface features like sharp
edges. There is practical evidence showing that a two step approach
could be an aid to this problem, namely, first computing a
polyhedral reconstruction isotopic to the sampled surface, and
secondly minimizing the absolute Gaussian curvature of this
reconstruction globally. The first step ensures topological
correctness and the second step improves the geometric accuracy of
the reconstruction in the presence of sharp features without
changing its topology. Unfortunately it is computationally hard to
minimize the absolute Gaussian curvature globally. Hence we study a
local variant of absolute Gaussian curvature minimization problem
which is still meaningful in the context of surface
fairing. Absolute Gaussian curvature like Gaussian curvature is
concentrated at the vertices of a polyhedral surface embedded into
. Local optimization tries to move a single vertex in
space such that the absolute Gaussian curvature at this vertex is
minimized. We show that in general it is algebraically hard to find
the optimal position of a vertex. By algebraically hard we mean that
in general an optimal solution is not constructible, i.e., there
exist no finite sequence of expressions starting with rational numbers,
where each expression is either the sum, difference,
product, quotient or 'th root of preceding expressions and the
last expressions give the coordinates of an optimal solution. Hence
the only option left is to approximate the optimal position. We
provide an approximation scheme for the minimum possible value of
the absolute Gaussian curvature at a vertex
Distributed PC Based Routers: Bottleneck Analysis and Architecture Proposal
No full textRecent research in the different functional areas of modern routers have made proposals that can greatly increase the efficiency of these machines. Most of these proposals can be implemented quickly and often efficiently in software. We wish to use personal computers as forwarders in a network to utilize the advances made by researchers. We therefore examine the ability of a personal computer to act as a router. We analyze the performance of a single general purpose computer and show that I/O is the primary bottleneck. We then study the performance of distributed router composed of multiple general purpose computers. We study the performance of a star topology and through experimental results we show that although its performance is good, it lacks flexibility in its design. We compare it with a multistage architecture. We conclude with a proposal for an architecture that provides us with a forwarder that is both flexible and scalable.© IEE
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
A Comparative Study on Agricultural Crop Disease Detection Systems
No full textAgriculture is a widely practiced profession. During cultivation of crops taking sufficient care of the crops is very necessary. A variety of fungi and bacterial diseases affect the crop in growth. Early diagnosis and detection of crop diseases leads to an increased yield of crops. For this reason, a lot of researches have been going on worldwide to develop systems that are efficient and feasible in agricultural crop disease detection. Thus, it has been an interesting area of research. So, we carry out a thorough study of around 13 papers and various other articles, covering disease detection systems on rice, wheat, paddy, cucumber and grapes. Also, we try to present a comparative study based on the criteria Methodology. Sneha N | Thota Santosh | C R Manjunath "A Comparative Study on Agricultural Crop Disease Detection Systems" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: https://www.ijtsrd.com/papers/ijtsrd12870.pd
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Letter from R. R. Zellick, Assistant Trust Officer, Anglo California National Bank of San Francisco, to Joseph R. Goodman, October 2, 1942
No full textLetter from R. R. Zellick, Assistant Trust Officer at The Anglo California National Bank of San Francisco, to Joseph R. Goodman, regarding property owned by Dave Tatsuno. Zellick mentions a dispute between current tenants and Tatsuno, and that Tatsuno has asked Goodman to help locate trustworthy tenants.Personal correspondence, organizational records, government documents, publications, and other papers created or collected by Joseph R. Goodman documenting the forced removal and incarceration of Japanese Americans during World War II, as well as organized resistance to incarceration. Included in the collection are records of the Japanese Young Men's Christian Association and the Japanese American Citizens' League in San Francisco, including papers of the Japanese YMCA's executive secretary Lincoln Kanai; Sakai family papers; Goodman's correspondence to and from Japanese American incarcerees, organizations opposing forced removal and incarceration of Japanese Americans, the War Relocation Authority, and others; publications, photographs, and ephemera from the Topaz Relocation Center, where Goodman taught high school; War Relocation Authority records and publications; and newspaper clippings, pamphlets, and reports about forced removal and incarceration created by various government, religious, and civic organizations, in California and nationwide
Lefroyothrips varatharajani Rachana & Kenchannavar 2020, sp.n.
No full textLefroyothrips varatharajani sp.n. Female macroptera. With the character states given in the generic diagnosis above. Body and legs yellow (Fig. 1); fore wing banded; antennal segment I white, II–III yellow, IV–V yellow basally and brown apically, VI–VIII brown, VII and VIII paler than VI (Fig. 3). Head with three pairs of ocellar setae, ocellar setae III twice the length of postocular setae I, arising almost at the centre of the tangent between the fore and hind ocelli; postocular setae arising in a row parallel to eye margin, pair II distinctly shorter than others (Fig. 7); mouth cone short and round, maxillary palps 3-segmented. Pronotum slightly widened towards base; two pairs of well developed posteroangular setae, subequal; three or four pairs of posteromarginal setae, median pair the longest (Fig. 5). Mesonotum with transverse sculpture lines, anteromedian campaniform sensilla present, not sculptured around; median pair of setae ahead of sub-median pair near posterior margin (Fig. 9). Metanotum with reticulate sculpture medially, longitudinal striations laterally; median pair of setae darker and stouter than sub-median pair (Fig. 4). Fore wing slightly yellow with two narrow brown cross bands at sub-basal and subapical areas; first vein with 7 proximal and 2 distal setae; second vein with 13–18 setae; clavus with 5+1 setae; terminal seta longer than sub-terminal seta (Fig. 11). Hind tibia with a row of 10 short spines on inner side and two stout spines at apex; hind tarsus with a pair of stout spines at apex. Abdominal tergite I striate, II–VIII with a few striations laterally; VIII with complete posteromarginal comb of long and fine microtrichia (Fig. 8); IX with two pairs of campaniform sensilla; X with incomplete median slit. Abdominal sternite II with two pairs of posteromarginal setae; III–VII with 3 pairs of posteromarginal setae, median pair of setae on VII arise ahead of posterior margin. Measurements (holotype female in microns). Body length 1775. Head, length 145; width across eyes 165; ocellar setae III 25; postocular setae I 12.5. Pronotum, length 155; width 205; outer posteroangular setae 55; inner posteroangular setae 60. Fore wing length 810. Antennal segments III–VIII length 45, 55, 45, 55, 10, 15. Male macroptera. Similar to female but paler and smaller (Fig. 2). Abdominal tergite IX with three pairs of stout, dark thorn like setae, anterior median pair the stoutest, posterior median pair the shortest (Fig. 6). Abdominal sternites III–VII each with a transverse pore plate slightly constricted at middle (Fig. 10). Measurements (paratype male in microns). Body length 1200. Head, length 100; width across eyes 150; ocellar setae III 20. Pronotum, length 115; width 190; outer posteroangular setae 50; inner posteroangular setae 60. Fore wing length 650. Antennal segments III–VIII length 40, 45, 40, 55, 10, 15. Material studied. Holotype female, INDIA, Karnataka, Bengaluru, GKVK campus from flowers of Mimusops elengi, 11.iii.2020 (Manjunath Kenchannavar) (ICAR / NBAIR / THYS/62). Paratypes 15 females, 8 males with same data as holotype. Holotype and paratypes deposited in the Indian Agricultural Insect Museum and National Repository, National Bureau of Agricultural Insect Resources (ICAR-NBAIR), Bengaluru, India. Etymology. This new species is dedicated to Dr. Ramaiyer Varatharajan, Professor, Centre of Advanced Study in Life Sciences, Manipur University, India. Comments. The new species is similar to Lefroyothrips lefroyi in having ocellar setae pair III shorter than distance between hind ocelli. However, it differs from L. lefroyi in having ocellar setae pair III twice the length of postocular setae, only a single row of postocular setae, and two brown bands on the fore wing without median seta.Published as part of Rachana, R. R. & Kenchannavar, Manjunath, 2020, A new species of the genus Lefroyothrips (Thysanoptera: Thripidae) from India, pp. 591-594 in Zootaxa 4896 (4) on page 592, DOI: 10.11646/zootaxa.4896.4.11, http://zenodo.org/record/438751
MED CARE Using IoT
No full textMany high risk diseases can be medicated and prohibited with the use of right kind of treatment. Accordingly, it's compulsory to consume drugs on the recommended time. If an infirm doesn't consume his medicant on schedule, there may be various negative effects. Using medical science and technology, this methodology assures specific time alert for the intake of the medicants. The alert will be one in audio form and other in visual form. Audio alert in the form of buzzer and visual alert in the form of LED and WhatsApp message. This device helps the infirm and the physician to monitor the regular intake of medication and advice for better improvements of the health. Aishwarya C | Ankita Vyas | Sunil M P | Manjunath C R "MED-CARE Using IoT" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: https://www.ijtsrd.com/papers/ijtsrd12980.pd
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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