Twenty-five years of global research publications trends of novel coronavirus: A scientometrics assessment

The study aimed to identify the trends and characteristics of the publication on the novel coronavirus. A total of 2661 publications from Scopus downloaded in the bib.text andCVSformat for 25 years to analyze by using scientometrics analysis software, namely Bibliometrix and Vosviewer. The results show that there is very little research conducted before 2002, but exponentially increased after 2003 and 2020 shows the highest number of publications (779). The result reveals that the 1806 publication is in the form of research articles, i.e., 68%. University Of Hong Kong has produced the highest publication, i.e., 362. The Journal of Virology (JIF = 4.324) has ranked1 interms of the number of total publications (173), total citation (9618), g index (90), and h index (57) respectively. Yuen KY found as the prolific author (75) and has more collaborative publication (62) as well. The author\u27s keyword coronavirus considered the more reliable keyword. The most cited (TC = 2194) article is A Novel Coronavirus Associated with Severe Acute Respiratory Syndrome by Ksiazek TG (2003). The study is beneficial for researchers who are currently doing or planning research on coronavirus

Crystal structure of 2-(4-methylpiperazin-1-yl)quinoline-3-carbaldehyde

In the title compound, C15H17N3O, the aldehyde group is twisted relative to the quinoline group by17.6 (2)degrees due to the presence of a bulky piperazinyl group in the ortho position. The piperazine N atom attached to the aromatic ring is sp(3)-hybridized and the dihedral angle between the mean planes through the the six piperazine ring atoms and through the quinoline ring system is 40.59 (7)degrees. Both piperazine substituents are in equatorial positions

Research Productivity on Human Migration in the Himalayan Region during 1947-2019: a Bibliometric Study

Purpose: The purpose of the present study is to find research productivity on \u27human migration in Himalayan region\u27 from 1947 to 2019. Methodology: The data of the present study have been collected from the International bibliographic database \u27Scopus\u27. Total 582 documents were extracted from 282 sources for the Himalayan region (China, India, Pakistan, Nepal, Tajikistan, Myanmar, Bhutan, and Afghanistan) under the category of \u27Social Science\u27 for the period 1947-2019. Data analysis was conducted by using bibliometric software, namely RStudio\u27s Biblioshiny and Microsoft office, version 2013. Results: The results reveal that the year 2019 was the most productive year for human migration publications (86 papers). Out of 582 documents, 506 publications are in research paper form. American Journal of Physical Anthropology (22 papers) is the most favored journal by the researchers. Li X is the most prolific author, publishing 23 articles on the topic. China (153) is a highly collaborative and most cited (2505) countr

N-(3-Methoxybenzoyl)-4-methylbenzenesulfonamide

In the title compound, C15H15NO4S, the dihedral angle between the benzene rings is 88.87 (1)°. In the crystal, adjacent molecules form inversion dimers through pairs of strong N—H...O hydrogen bonds, generating R22(8) loops. Two C—H...π interactions and an aromatic π–π interaction [centroid–centroid separation = 3.8191 (1) Å] are also observed

Selective transformations between nanoparticle superlattices via the reprogramming of DNA-mediated interactions

The rapid development of self-assembly approaches has enabled the creation of materials with desired organization of nanoscale components. However, achieving dynamic control, wherein the system can be transformed on demand into multiple entirely different states, is typically absent in atomic and molecular systems and has remained elusive in designed nanoparticle systems. Here, we demonstrate with in situ small-angle X-ray scattering that, by using DNA strands as inputs, the structure of a three-dimensional lattice of DNA-coated nanoparticles can be switched from an initial ‘mother’ phase into one of multiple ‘daughter’ phases. The introduction of different types of reprogramming DNA strands modifies the DNA shells of the nanoparticles within the superlattice, thereby shifting interparticle interactions to drive the transformation into a particular daughter phase. Moreover, we mapped quantitatively with free-energy calculations the selective reprogramming of interactions onto the observed daughter phases.by Yugang Zhang, Suchetan Pal, Babji Srinivasan, Thi Vo, Sanat Kumar and Oleg Gan

1-(3,5-Difluorophenyl)-4,4,4-trifluorobutane-1,3-dione

In the title compound, C10H5F5O2, the C=O bonds are syn to one another. In the crystal, molecules are linked into C(9) chains parallel to [101] through weak C—H...O interactions, with the O atom adjacent to the –CF3 group acting as the acceptor

Construction of bi-functional inorganic–organic hybrid nanocomposites

Single system bi-functional inorganic–organic hybrid nanocomposites, PB@SiO<SUB>2</SUB>@BTC@Ln (PB = Prussian blue, BTC = benzene tricarboxylate; Ln = Tb(III)/Sm(III)) having a PB magnetic core and a luminescent lanthanide probe, show superparamagnetic behavior and significant enhancement in luminescence intensities

Crystal structure of (R)-60-bromo-3,3-dimethyl-30,40 -dihydro-20H-spiro[cyclohexane-1,30-1,2,4-benzothiadiazine] 10,10-dioxide

In the title compound, C14H19BrN2O2S, the 1,2,4-thiadiazinane ring adopts an envelope conformation with the N atom (attached to the sulfonyl group) as the flap, while the cyclohexane ring adopts a chair conformation. The mean plane of the cyclohexane ring is almost normal to the benzene ring and the mean plane of the 1,2,4-thiadiazinane ring, making dihedral angles of 70.4 (2) and 71.43 (19)°, respectively. Furthermore, the dihedral angle between the benzene ring and the mean plane of the 1,2,4-thiadiazinane ring is 4.91 (18)°. The molecular structure is stabilized by an intramolecular C - H�O hydrogen bond, which encloses an S(6) ring motif. In the crystal, molecules are linked by N - H�O hydrogen bonds into chains along 10-1, forming a C(6) graph-set motif. These chains are interconnected via C - H�� interactions, leading to chains along -101, so finally forming sheets parallel to (010)

N-(3-Methoxybenzoyl)-2-methylbenzenesulfonamide

In the title compound, C15H15NO4S, the dihedral angle between the methyl- and methoxy-substituted benzene rings is 88.99&#8197;(12)&#176;. An intramolecular C&#8212;H...O hydrogen bond occurs. In the crystal, adjacent molecules form inversion-related dimers through strong N&#8212;H...O hydrogen bonds, generating R22(8) loops. The dimers are further connected through C&#8212;H...O interactions that form C(8) chains parallel to (001). Molecules are also connected through other C&#8212;H...O hydrogen bonds along the b axis, forming additional C(8) chains. Two aromatic &#960;&#8211;&#960; stacking interactions [centroid&#8211;centroid separations = 3.6150&#8197;(1) and 3.6837&#8197;(1)&#8197;&#197;] generate a three-dimensional architecture