1,721,578 research outputs found
Effects of soy isoflavones supplement on the disease course of autoimmune-prone MRL/lpr mice
No full textLong-term follow-up of a girl with Maroteaux-Lamy syndrome after bone marrow transplantation.
No full textHydrothermal synthesis and structural characterization of two pH-controlled Cd-squarate coordination frameworks [Cd-2(C4O4)(2.5)(H2O)(4)]center dot(dpaH)center dot 1.5(H2O) and [Cd(C4O4)(dpa)(OH2)] (dpa=2,2 ’-dipyridylamine)
No full text
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
CMOS DIRECT INJECTION-LOCKED FREQUENCY DIVIDER (3.55 mW 80 GHz) WITH 26.3% LOCKING RANGE USING DISTRIBUTED LC TANK AND BODY BIAS TECHNIQUES
No full text[[abstract]]A 3.55-mW 80-GHz complementary metal-oxide-semiconductor (CMOS) divide-by-2 direct injection-locked frequency divider (DILFD) using distributed inductance-capacitance (LC) tank and body bias techniques for operation frequency and locking-range enhancement is demonstrated. Compared with the traditional LC tank, the distributed LC tank significantly decreases the equivalent LC and C values. This in turn results in an increase of the operation frequency and the locking range. In addition, trans-conductance (g(m)) of the injection transistor can be improved by body bias due to the reduction of its threshold voltage. This in turn results in an increase of the locking range (6.2 GHz in simulation). Furthermore, power consumption is reduced by eliminating the head current source in the traditional DILFD. Measurement result shows the proposed DILFD achieved a state-of-the-art 26.3% (61.5-80.1 GHz) locking range and an excellent output phase-noise of -128.69 dBc/Hz at 1 MHz offset. (C) 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2694-2697, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26333[[note]]SC
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
WIDE LOCKING RANGE DIVIDE-BY-3 INJECTION-LOCKED FREQUENCY DIVIDER USING DIFFERENTIAL-INJECTION LINEAR MIXERS AND DUAL FREQUENCY TUNING
No full text[[abstract]]A wide locking-range Ka-band CMOS divide-by-3 injection-locked frequency divider (ILFD3) using differential-injection linear mixers and dual frequency-tuning is demonstrated in a standard 0.18 mu m CMOS technology. Divide-by-3 and low-voltage operation were achieved by the differential-injection linear mixers, which constitute two source-connected series NMOSFETs in parallel with the LC tank. In addition, two pairs of varactors were adopted to enhance the ratio of variable capacitance to the overall capacitance of the LC tank. This in turn results in an increase of the locking range (LR). Furthermore, a bypass capacitor was added to the drain terminal of the head current source to eliminate its noise contribution. The ILFD3 consumed 5.28 mW from a 1.5 V power supply. Measurement result shows the proposed ILFD3 achieved a state-of-the-art 19.84% (31.29-38.18 GHz) locking range and an excellent output phase-noise of -130.1 dBc/Hz at 1 MHz offset. The chip area was only 0.87 x 0.72 mm(2) excluding the test pads. (C) 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2622-2626, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26307[[note]]SC
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe 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
- …
