1,721,076 research outputs found
Pseudo-Differential Time-to-Amplitude Converter for LGAD Based Particle Detectors
No full textThis work is concerned with the design of a pseudo-differential Time-to-Amplitude Converter (TAC). The TAC has been developed to achieve low-jitter and low-INL performance and provide two selectable output full-scale ranges (FSRs), namely 100 ns and 1 μs. The pseudo-differential TAC, with a power consumption of 0.26 mW and a total area of 100 x 126 μm2, has been designed in a 65 nm CMOS technology as part of the front-end circuit for the readout of Low Gain Avalanche Diodes (LGADs) based particle detectors for the next generation of space-borne experiments. The paper will present and discuss the proposed TAC architecture and the relevant post-layout simulation results
Charge Sensitive Amplifiers with Bi- and Trilinear Signal Compression Feature for LGAD Detectors
No full textThis work is concerned with the design of Charge Sensitive Amplifiers (CSAs) featuring dynamic signal compression. Two different CSA variants have been developed to reach low-noise performance while dealing with signals covering more than three decades in dynamic range. The CSAs have been designed in a 65 nm CMOS technology as part of the front-end circuit for the readout of Low Gain Avalanche Diodes (LGADs) based particle detectors for the next generation of space-borne experiments. The paper will discuss the proposed CSA architectures and the relevant simulation results
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
Diagnosis, Clinical Features and Management of Interstitial Lung Diseases in Rheumatic Disorders: Still a Long Journey
Full text link: Interstitial lung disease (ILD) is one of the most frequent pulmonary complications of autoimmune rheumatic diseases (ARDs), and it is mainly associated with connective tissue diseases (CTDs) and rheumatoid arthritis (RA) [...]
Personalized Medicine and Machine Learning: A Roadmap for the Future
Full text link: In the last ten years, many advances have been made in the treatment and diagnosis of immune-mediated diseases [...]
Modeling I-MOS Capacitor C-V Characteristic for Non-Linear Charge Sensitive Amplifiers
No full textAn analytic model for the C- V characteristic of Inversion-Mode MOS (I-MOS) capacitors is defined, to be used in the design of Charge Sensitive Amplifiers (CSAs) with dynamic signal compression feature. The model is derived from the equations governing channel inversion in the two and four terminal metal-oxide-semiconductor structure. A comparison between the model predictions and the simulation results is provided for MOS capacitors and CSAs in a 65 nm CMOS technology
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
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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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