34,368 research outputs found
Spectrometric study of condensed phase species of thorium and palladium-based modifiers in a complex matrix for electrothermal atomic absorption spectrometry
No full textThe chemical and morphological transformations of condensed phase species of a thorium-based modifier were studied over the temperature range 200–2500 °C, without and with the presence of aluminium and silicon as matrix components, and in some instances, arsenic as an analyte element. A similar study was also conducted with palladium as the modifier, for comparison. Results were derived using scanning electron microscopy (SEM), energy dispersive (ED) X-ray spectrometry, Raman microanalysis and attenuated total reflectance (ATR) Fourier transform-infrared (FT-IR) spectrometry. Comparable results were found using pyrolytic and non-pyrolytic graphite platforms, with processes occurring at slightly higher temperatures on the pyrolytic graphite platform. With thorium as the modifier, metal oxides were the predominant species on the platform surface at relatively low temperatures (<1500 °C), whereas metal phases became prevalent at high temperatures, when thorium and aluminium tended to behave independently from one other. Some spatial variations in the composition of the salt residues on different regions of the platform were observed (from the region closest to the slot in the tube, to the region furthest from the slot). Nonetheless, thorium metal remained on the graphite platform to higher temperatures than did aluminium metal. In the presence of arsenic, the existence of mixtures of thorium and arsenic oxides, just before the appearance temperature of gas phase arsenic atoms, was confirmed by SEM studies, ED X-ray spectra and Raman microanalysis. This suggests that any modifying effect of thorium on arsenic occurs while the modifier is in the oxide phase rather than in the metal phase. The presence of silicon added as silica, did not influence significantly the thermochemical behaviour of mixtures of thorium and aluminium. However, coexistence of silicon and arsenic oxides at the appearance temperature of the atomic absorption signal of arsenic was obtained, confirming that silicon can act as an internal modifier for arsenic. In the presence of palladium, aluminium exhibited greater interaction with the modifier; consequently, aluminium metal was retained on the platform surface to higher temperatures than thorium, which could explain how interference effects of aluminium on e.g. arsenic are avoided or reduced. Similarly, there was evidence for interaction of palladium and arsenic in the reduced state. However, when aluminium and silicon were present, the transformation of the palladium oxide to the metallic state was affected, which could diminish the modifying benefits of palladium for arsenic in the presence of aluminium
sj-docx-1-npx-10.1177_1934578X221075854 - Supplemental material for A New Phenolic Diterpene From the Leaves of <i>Rosmarinus officinalis</i>
No full textSupplemental material, sj-docx-1-npx-10.1177_1934578X221075854 for A New Phenolic Diterpene From the Leaves of Rosmarinus officinalis by Tingwen Zhang, Deng-Gao Zhao, Shuting Li, Kun Zhang, Mei-Li Yang, Xuan Huang, Leyi Li and Yan-Yan Ma in Natural Product Communications</p
sj-docx-1-jic-10.1177_08850666211037326 - Supplemental material for Predictive Value of Eosinophil Count on COVID-19 Disease Progression and Outcomes, a Retrospective Study of Leishenshan Hospital in Wuhan, China
No full textSupplemental material, sj-docx-1-jic-10.1177_08850666211037326 for Predictive Value of Eosinophil Count on COVID-19 Disease Progression and Outcomes, a Retrospective Study of Leishenshan Hospital in Wuhan, China by Wei Xuan, Xuliang Jiang, Lili Huang, Shuting Pan, Caiyang Chen, Xiao Zhang, Hui Zhu, Song Zhang, Weifeng Yu, Zhiyong Peng and Diansan Su in Journal of Intensive Care Medicine</p
Psychological Semantic Differences of Zhang Juzheng Before and After DuoQing Event
No full textAfter the death of his father, Zhang Juzheng did not follow the rule to mourn his father for 27 months, but continued to work, known as Zhang’s DuoQing event. Because the event had a huge influence on the imperial court and Zhang Juzheng himself, the present paper analyzed the differences in written expressions of Zhang Juzheng before and after DuoQing event from a psychological semantic perspective. This paper used a classic Chinese dictionary, CC-LIWC, to analyze Zhang’s work (Memorials & letters), and obtained the word frequency of LIWC keywords, then compared their differences. We selected psychological semantically related CC-LIWC keywords for further analysis, including Functional-Personal pronouns, Affective processes, Social process, Cognitive process, Drives process, Personal concerns. The results indicated that only five dimensions of the Third person singular words, the Third person plural words, the Sadness words, the Female words and the Difference words were significantly different among the above keywords. This paper found that Zhang Juzheng was an efficient manager who loved power and work, the development of DuoQing event was beyond Zhang Juzheng’s expectation, and the incomprehension and impeachment from his close people made him sad. This paper provides a new method for analyzing one’s psychological changes before and after one major event, also provides some reference for modern leaders in terms of psychology and dealing with people.</p
†Chuchinolepididae Zhang 1978
No full textFamily †Chuchinolepididae Zhang 1978, spelling in prevailing recent practice †Chuchinolepidae Zhang 1978a: 296 (family) † Chuchinolepis Zhang 1978 [family name also seen as †Chuchinolepididae; author also seen as Chang] †Qujinolepidae Zhang 1978b: 173 (family) † Qujinolepis Zhang 1978 [family name sometimes seen as † Qujinolepididae] †Procondylolepidae Zhang 1984: 82 (family) † Procondylolepis Zhang 1984Published as part of Laan, Richard Van Der, 2018, Family-group names of fossil fishes, pp. 1-167 in European Journal of Taxonomy 466 on page 27, DOI: 10.5852/ejt.2018.466, http://zenodo.org/record/555755
An enhanced author name dataset for PubMed/MEDLINE
No full text<p>The incompleteness of author names is a well-known issue in the MEDLINE database. It was since 2002, the full author name has been systematically indexed in MEDLINE. Although many full author names have been added to MEDLINE, we still found a significant number of abbreviated names in papers published after 2002.</p>
<p>Here we built an enhanced author name dataset for MEDLINE, called EAN, achieved by linking the whole PubMed to other large literature databases and conducting a large-scale name comparison and restoration with obtained multi-sources author names. Our evaluation shows that more than 90% of author names in EAN are complete as compared to the ratio of ~60% in MEDLINE.</p>
An enhanced author name dataset for PubMed/MEDLINE
No full text<p>The incompleteness of author names is a well-known issue in the MEDLINE database. It was since 2002, the full author name has been systematically indexed in MEDLINE. Although many full author names have been added to MEDLINE, we still found a significant number of abbreviated names in papers published after 2002.</p>
<p>Here we built an enhanced author name dataset for MEDLINE, called EAN, achieved by linking the whole PubMed to other large literature databases and conducting a large-scale name comparison and restoration with obtained multi-sources author names. Our evaluation shows that more than 90% of author names in EAN are complete as compared to the ratio of ~60% in MEDLINE.</p>
sj-docx-1-gpi-10.1177_13684302211051619 – Supplemental material for A world together: Global citizen identification as a basis for prosociality in the face of COVID-19
No full textSupplemental material, sj-docx-1-gpi-10.1177_13684302211051619 for A world together: Global citizen identification as a basis for prosociality in the face of COVID-19 by Zhechen Wang, Jolanda Jetten, Niklas K. Steffens, Belén Álvarez, Sarah V. Bentley, Bruno Gabriel Salvador Casara, Charlie R. Crimston, Octavia Ionescu, Henning Krug, Hema Preya Selvanathan, Porntida Tanjitpiyanond, Susilo Wibisono, Shuting Chen, Jiajun Wang, Xin Zhang and Shijin Sun in Group Processes & Intergroup Relations</p
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