562,503 research outputs found
Phase behaviour and crystal structures of 2′,3′-difluorinated p-terphenyl derivatives
No full textThe crystal structures of difluorine derivatives of p-terphenyls (nTm) have been determined by single-crystal X-ray diffraction. For the unsymmetrical substituted compounds 2′,3′-difluoro-4-methyl-p-terphenyl (1T0, C19H14F2) and 4-ethyl-2′,3′-difluoro-4′′-methyl-p-terphenyl (1T2, C21H18F2), the crystal structure is disordered, with molecules statistically entering the crystal in up and down orientations, with full superposition of all the atoms, except for those of the terminal groups (H/methyl for 1T0 and methyl/ethyl for 1T2). For triclinic 2′,3′-difluoro-4,4′′-dimethyl-p-terphenyl (1T1, C20H16F2), with the space group P , the two crystallographically independent molecules have the same conformation, which is different from monoclinic 1T0 (space group C2) and 1T2 (space group C2/c). A common feature of the conformation of the three compounds is the noncoplanar twisted arrangement of the three rings of the p-terphenyl moiety. Two-dimensional (2D) Hirshfeld fingerprint plots are consistent with H ... H and C ... H contacts in the crystal packing. For the three compounds, the phase behaviour has been investigated by POM (Petra/Osiris/Molinspiration) and differential scanning calorimetry (DSC) analysis. 1T2 is mesogenic, with enantiotropic nematic behaviour
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Das-1 IgG and IgM recognize a glycosylation epitope.
No full textChemical deglycosylation of the antigen results in near complete loss of signal as measured by western blot analysis using (A) Das-1 IgM and (B) Das-1 IgG. Quantification of band intensity is presented below each band.</p
Sample ARPES data
No full textThis is a sample ARPES spectra and Fermi map data acquired by Scienta-Omicron SES program. The spectra is taken on Bi2Se3 sample
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Sample Powder X-ray Diffraction data of CeMg3
No full textThis sample Powder X-ray Diffraction data of CeMg3 is used for FullProf tutorial https://fullprof.readthedocs.io/ The data file contains 2theta vs intensity data in two column plaintext (.x_y) format
Nota sobre o "muzimo" do abrigo com pinturas rupestres da Mavita
No full textEs separata de: XIII Congresso Luso-Espanhol Para o Progresso das Ciências, 4ª Secçâo, Ciências Naturais, t.VÉ separata de: XIII Congresso Luso-Espanhol Para o Progresso das Ciências, 4ª Secçâo, Ciências Naturais, t.VEn p. 600 se cita una obra de 1950Na p. 600 cítase unha obra de 195
Sistema automatizado para cultivo de plantas baseado internet das coisas
Get PDFThis work consists of developing an indoor greenhouse for growing plants through an
automated system using the principle of the internet of things. Using the control of
temperature variables, air and soil humidity and luminosity, using sensing connected
to the ESP32 platform. The user is given control and access to the status of the
greenhouse, providing an environment for quality cultivation and easy construction.Este trabalho consiste no desenvolvimento de uma estufa indoor para o cultivo de
plantas por meio de um sistema automatizado utilizando o princípio da internet das
coisas. Com o emprego do controle das variáveis de temperatura, umidade do ar e
do solo e luminosidade, utilizando o sensoriamento conectado à plataforma ESP32.
Proporciona-se ao usuário o controle e acesso ao status da estufa, fornecendo um
ambiente para cultivo de qualidade e de fácil construção
Debendranath-Das/Blockchain-enabled-Multicurrency-Supported-Distributed-e-Banking-System: Initial Release
No full text<p><strong>Full Changelog</strong>: https://github.com/Debendranath-Das/Blockchain-enabled-Multicurrency-Supported-Distributed-e-Banking-System/commits/v1.0.0</p>
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
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