2,364 research outputs found
On co-authorship for author disambiguation
No full textAuthor name disambiguation deals with clustering the same-name authors into different individuals. To attack the problem, many studies have employed a variety of disambiguation features such as coauthors, titles of papers/publications, topics of articles, emails/affiliations, etc. Among these, co-authorship is the most easily accessible and influential, since inter-person acquaintances represented by co-authorship could discriminate the identities of authors more clearly than other features. This study attempts to explore the net effects of co-authorship on author clustering in bibliographic data. First, to handle the shortage of explicit coauthors listed in known citations, a web-assisted technique of acquiring implicit coauthors of the target author to be disambiguated is proposed. Then, a coauthor disambiguation hypothesis that the identity of an author can be determined by his/her coauthors is examined and confirmed through a variety of author disambiguation experiments. (C) 2008 Elsevier Ltd. All rights reserved.X1174sciescopu
A Stretchable Kirigami‐Inspired Self‐Powered Electroactive Sensor for Tensile Strain and Torsion Sensing
No full textElectroactive polymer has a great potential to be employed for making a self-powered sensor due to the ionic movement of the mobile cation that exists in the polymer structure itself. However, applying an electroactive-based sensor as wearable gadget can be challenging due to its limited detection range and nonconformity. Inspired by the Kirigami structure, herein, it has been demonstrated that a self-powered electroactive-based sensor with improved conformality. It has been found that the Kirigami structure can enhance the sensor sensitivity significantly. The sensor exhibited high sensitivity to a uniaxial strain deformation with more than 300% sensitivity and a broad sensing range of up to 80% strain. In addition to being able to detect the uniaxial strain, the Kirigami-patterned sensor also has good torsion and mixed torsion–strain dependent properties, making it a good multifunctional sensor. As a proof-of-concept demonstration for applications in monitoring human activities, it has been successfully demonstrated that the proposed Kirigami-patterned sensor is able to monitor wrist movements and respiration rate. Notably, this Kirigami-patterned electroactive-based sensor has significantly broadened the application of electroactive polymer on advanced wearable electronics.No Full Tex
The distance-regular graphs such that all of its second largest local eigenvalues are at most one
No full textIn this paper, we classify distance-regular graphs such that all of its second largest local eigenvalues are at most one. Also we discuss the consequences for the smallest eigenvalue of a distance-regular graph. These extend a result by the first author, who classified the distance-regular graphs with smallest eigenvalue -1 - b(1)/2. (C) 2011 Elsevier Inc. All rights reserved.X1154sciescopu
On geometric distance-regular graphs with diameter three
Get PDFIn this paper we study distance-regular graphs with intersection array {(t + 1)s. ts. (t - 1)(s + 1 - psi); 1, 2, (t + 1)psi} (1) where s. t. psi are integers satisfying t >= 2 and 1 = 2, there are only finitely many distance-regular graphs of order (s, t) with mallest eigenvalue -t -1, diameter D = 3 and intersection number c(2) = 2 except for Hamming graphs with diameter three. Moreover, we will show that if a distance-regular graph with intersection array (1) for t = 2 exists then (s, psi) = (15, 9). As Gavrilyuk and Makhnev (2013)[9] proved that the case (s, psi) = (15, 9) does not exist, this enables us to finish the classification of geometric distance-regular graphs with smallest eigenvalue -3, diameter D >= 3 and c(2) >= 2 which was started by the first author (Bang, 2013)[1]. (C) 2013 Elsevier Ltd. All rights reserved.X1121Ysciescopu
Rough Set Based Approach for IMT Automatic Estimation
Get PDFCarotid artery (CA) intima-media thickness (IMT) is commonly deemed as one of the risk marker for cardiovascular diseases. The automatic estimation of the IMT on ultrasound images is based on the correct identification of the lumen-intima (LI) and media-adventitia (MA) interfaces. This task is complicated by noise, vessel morphology and pathology of the carotid artery. In a previous study we applied four non-linear methods for feature selection on a set of variables extracted from ultrasound carotid images. The main aim was to select those parameters containing the highest amount of information useful to classify the image pixels in the carotid regions they belong to. In this study we present a pixel classifier based on the selected features. Once the pixels classification was correctly performed, the IMT was evaluated and compared with two sets of manual-traced profiles. The results showed that the automatic IMTs are not statistically different from the manual one
Capsule-like voids in SiC single crystal: Phase contrast imaging and computer simulations
No full textThe results of observation of capsule-like voids in silicon carbide (6H-SiC) single crystal by means of a phase contrast imaging technique with synchrotron radiation at the Pohang Light Source as well as computer simulations of such images are presented. A pink beam and a monochromated beam were used. The latter gives more pronounced images but they still are smoothed due to a finite detector resolution and the spatial coherence of the beam. Sizes and a structure of far field images are different from these of the objects. The computer simulations allow us to reproduce a shape and a size of the capsule-like void. (C) 2014 Author(s).open1111sciescopu
cootje down
No full textcroochy vThis means to "crouch down". ...mainly used by children... "Cootje down a bit please, so that I can see over your head." Coo chee is pretty close to the pronounciation.Yes[-]PRINTED ITEM[-] JH 7/70Used I and SupNot UsedNot Used[see 'coopy down']cooch, coochy, coojy*, COOPY, OUAT, croochy down, crouchyChecked by Jordyn Hughes on Mon 27 Jun 201
Prenatal Sex Determination and Sex-Selective Abortion in Rural Central China
No full textThis study analyzes the practice of prenatal sex selection in rural central China. It examines the prevalence and determinants of prenatal sex determination by ultrasound scanning and subsequent sex-selective abortion. The data are derived from a survey of 820 married women aged 20-44 and from in-depth interviews with rural women and men, village leaders, family planning managers, and health providers, conducted by the author in one county in central China in 2000. Prenatal sex determination was a widespread practice, especially for second and higher-order pregnancies. Sex-selective abortion was prevalent and order of pregnancy, sex of fetus, and sex of previous children were major determinants of the practice. A female fetus representing a high-order pregnancy in a family with one or more daughters was the most likely to be aborted. Awareness among rural families that in the population at large a future marriage squeeze was likely did not diminish the demand for sex-selective abortion. Copyright 2001 by The Population Council, Inc..
Cospectral graphs and the generalized adjacency matrix
No full textLet J be the all-ones rnatrix, and let A denote the adjacency matrix of a graph. An old result of Johnson and Newman states that if two graphs are cospectral with respect to yJ - A for two distinct values of y, then they are cospectral for all y. Here we will focus on graphs cospectral with respect to yJ - A for exactly one value (y) over cap of (y) over cap. We call such graphs (y) over cap -cospectral. It follows that is a rational number, and we prove existence of a pair of (y) over cap -cospectral graphs for every rational. In addition, we generate by computer all (y) over cap -cospectral pairs on at most nine vertices. Recently, Chesnokov and the second author constructed pairs of (y) over cap -cospectral graphs for all rational (y) over cap is an element of (0, 1), where one graph is regular and the other one is not. This phenomenon is only possible for the mentioned values of, and by computer we find all Such pairs of (y) over cap -cospectral graphs on at most eleven vertices. (C) 2006 Elsevier Inc. All rights reserved.X1116sciescopu
Diatom frustule silica extracted from Melosira nummuloides ameliorates acetaminophen-induced acute liver injury in mice
No full textMelosira nummuloides is a type of diatom in the family Melosiraceae. Diatoms are unicellular microalgae widely distributed in aquatic environments. Diatoms are known to be suitable for many industrial and biomedical applications because of their high biocompatibility and ease of use. In this study, we investigated the hepatoprotective effect of diatom frustule silica (DFS) extracted from Melosira nummuloides on hepatotoxicant-induced liver injury. Hepatoprotective effects of DFS were examined using acetaminophen-induced acute liver injury (ALI) mouse model. We evaluated the hepatoprotective effects through hepatotoxicity, pro-inflammatory cytokines, transcriptional factors, upstream signaling pathways, and histopathological analysis by DFS in an animal model of acetaminophen-induced ALI. Our results showed serum alanine aminotransferase/aspartate aminotransferase activity and hepatic malondialdehyde formation were significantly attenuated upon DFS administration. DFS also ameliorated glutathione depletion and down-regulated acetaminophen-induced CYP2E1. DFS administration also down-regulated expressions of pro-inflammatory cytokines through preventing NF-κB activation by JNK1/2 phosphorylation inhibition. These findings demonstrate that the hepatoprotective effect of DFS is associated with suppression of inflammatory responses in an animal model of acetaminophen-induced ALI. © 2022, The Author(s)
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