Stereo Boron Nitride Nanoribbons with Junction-Dependent Electronic Structures from First-Principles

Using first-principles calculations, we investigate the structures and properties of stereo triwing boron nitride nanoribbons (TBNNRs). These triwing structures are constructed by three BN ribbon wings connected via the junctions, which have comparable thermodynamic stabilities to the planar nanoribbons. We find that the junctions play a primary role in the electronic structures of triwing nanoribbons, which cause versatile electronic and magnetic properties for the stereo structures. For the armchair edges, all the TBNNRs are semiconductors, for which the wide band gaps are opened between the occupied N p_<i>z</i> orbitals and unoccupied B p_<i>z</i> orbitals adjacent to the junctions, while for the zigzag ones, the TBNNRs can be metals or narrow-band gap semiconductors depending on the bonding characteristics of the junctions. The sp²-bonding junctions substantially reduce the band gaps, and the sp³-bonding junctions even induce the metallic behaviors. Moreover, due to the Stoner effect, an intrinsic spin-polarized phenomenon occurs when the sp³-bonding junction contains only the boron atoms. Accompanied by the spin-polarization, a metal-to-semiconductor transition takes place in these zigzag TBNNRs, which become semiconducting sp-electron ferromagnets. Our studies demonstrate that the electronic structures of triwing BN nanoribbons can be effectively tailored by the junctions, which leads to potential applications in the nanoscale electronics and spintronics

Multilayer Three-Dimensional Structure Made of Modified Stainless Steel Mesh for in Situ Continuous Separation of Spilled Oil

A multilayer three-dimensional (3D) structure made of hydrophobic stainless steel mesh has been designed for in situ continuous oil/water separation. The hydrophobic stainless steel mesh was prepared via a facile and environmental friendly method by etching with FeCl₃ solution and coating with <i>n</i>-octadecylthiol. The as-prepared mesh allows oils (gasoline, diesel oil, engine oil) and organic solvents (hexane, liquid paraffin) to pass through and repels water. A separation device equipped with the multilayer 3D structure can continuously separate the aforementioned oils from oil–water mixtures. The separation efficiency of continuous separation is more than 99.0 wt % and shows little decrease after 10 cycles

Data_Sheet_1_Research hotspots and frontiers about role of visual perception in stroke: A bibliometric study.XLS

BackgroundVisual perception is a dynamic process of perceiving the environment through sensory input and transforming sensory input into meaningful concepts related to environmental visual knowledge. Many studies focusing on the role of visual perception after stroke have been published in various journals. However, a bibliometric analysis in the domain of visual perception after stroke is still lacking. This study aimed to deliver a visual analysis to analyze the global trends in research on the role of visual perception after stroke in the last 10 years.MethodsThe literature was derived from the Web of Science core collection database from 2012 to 2021. The collected material was limited to English articles and reviews. CiteSpace and Microsoft Excel were used for bibliographic analysis.ResultsA total of 298 articles were included in the analysis. The annual number of publications increased from 23 to 42 in the last decade. Rehabilitation was the main research hotspot (n = 85). Journal of Physical Therapy Science published the largest number of papers (n = 14). The most influential author, institution, and country were Rowe FJ (n = 17), League of European Research Universities (n = 45), and England (n = 54), respectively. The keywords with the longest burst period are field defect, hemineglect, disorder, and quality of life.ConclusionThis study analyzes the papers on the role of visual perception after stroke in the past 10 years and provides a new perspective for research in this field. At present, the number of articles in this field is not large and the cooperation network is not close enough. In the future, it is necessary to strengthen the cooperation among various countries, institutions, and authors. In addition, large samples and randomized controlled trials are needed to identify the potential treatments and pathophysiology for visual perceptual impairment after stroke.</p

Demographics and potential risk factors related to functional outcome by univariable analysis in whole cohort.

<p>Demographics and potential risk factors related to functional outcome by univariable analysis in whole cohort.</p

The W residue in Domain IV is conserved in both OsIAAs and OsARFs.

<p>(A) The alignment of Domain IV of OsAux/IAAs in rice, the conserved W is marked by the arrow. Conserved GDVP motif is indicated by thick line above the alignment. (B) The alignment of Domain IV of OsARFs in rice, the conserved W is marked by the arrow. Conserved GDDP motif is indicated by thick line above the alignment.</p

Intragenic mutation in Domain IV fully rescued the defects of <i>Osiaa23-3</i> mutant.

<p>(A) Phenotypes of 7-day-old seedlings of wild type (WT), heterozygous mutant of <i>Osiaa23-3</i> (Aa), homozygous mutant of <i>Osiaa23-3</i> (aa) and the suppressor of <i>Osiaa23-3</i>, <i>Osiaa23-R5</i>. Bar  = 2 cm. (B) Diagram of conserved domains of OsIAA23. Black rectangles marked by Roman numerals indicate four domains of OsIAA23, and two mutated sites in Domain II and Domain IV are marked by arrows. (C) Growth parameters of 7-day-old seedlings of WT, Aa, aa and <i>Osiaa23-R5</i>. (D-G) Root tips of 7-day-old seedlings of WT (D), Aa (E), aa (F) and <i>Osiaa23-R5</i> (G). Bars  = 250 µm.</p

Two Dynamic ABW-Type Metal Organic Frameworks Built of Pentacarboxylate and Zn²⁺ as Photoluminescent Probes of Nitroaromatics

Self-assembly reactions of Zn²⁺ and L^5– (H₅L = 2,5-(6-(4-carboxyphenylamino)-1,3,5-triazine-2,4-diyldiimino) diterephthalic acid) lead to the formation of two new ABW-type zeolitic metal–organic frameworks (Z-MOFs): (Me₂NH₂)­[Zn₂L]­·3.5DMF (<b>1</b>) and (Me₂NH₂)­[Zn₂L­(H₂O)]­·2DMF­·8H₂O (<b>2</b>) (DMF = <i>N</i>,<i>N</i>-dimethylformamide). They are the first two Z-MOFs which are built of the same pentacarboxylate ligand and metal ion but have two configurations and channel shapes (distorted honeycomb- and herringbone-shaped channels for <b>1</b> and <b>2</b> respectively). They can demonstrate interesting structural transformations triggered by vacuum heating or soaking in different solvents. While direct transformations between <b>1</b> and <b>2</b> were revealed to be not feasible, <b>2</b> could be first transformed to a crystalline intermediate <b>3</b> and then into <b>1</b>. Furthermore, while transformations between <b>2</b> and <b>3</b> are irreversible, those between <b>1</b> and <b>3</b> are reversible, accompanied by a 26 nm shift of their emission peak positions. In comparison to the ligand, <b>1</b>, <b>2</b>, and <b>3</b> exhibit blue shifts in their luminescent emission peaks and have intensive blue emission in both solid and solution phases. The efficient and selective quenching of their photoluminescence by a series of nitroaromatics (NACs) solutions phase and by nitrobenzene (NB) vapor makes them promising probes for detecting NACs. <b>1</b>–<b>3</b> represent the first series of MOFs as promising photoluminescent probes for detecting dinoseb down to 2.4 ppm. The electron transfer, long-range energy transfer, and/or electrostatic interactions between the frameworks and NACs mainly contribute to the quenching mechanisms

Potential risk factors related to 6-month post-stroke functional outcome in subgroups without pre-stroke diagnosis of diabetes.

<p>Potential risk factors related to 6-month post-stroke functional outcome in subgroups without pre-stroke diagnosis of diabetes.</p

Data_Sheet_2_Research hotspots and frontiers about role of visual perception in stroke: A bibliometric study.DOC

BackgroundVisual perception is a dynamic process of perceiving the environment through sensory input and transforming sensory input into meaningful concepts related to environmental visual knowledge. Many studies focusing on the role of visual perception after stroke have been published in various journals. However, a bibliometric analysis in the domain of visual perception after stroke is still lacking. This study aimed to deliver a visual analysis to analyze the global trends in research on the role of visual perception after stroke in the last 10 years.MethodsThe literature was derived from the Web of Science core collection database from 2012 to 2021. The collected material was limited to English articles and reviews. CiteSpace and Microsoft Excel were used for bibliographic analysis.ResultsA total of 298 articles were included in the analysis. The annual number of publications increased from 23 to 42 in the last decade. Rehabilitation was the main research hotspot (n = 85). Journal of Physical Therapy Science published the largest number of papers (n = 14). The most influential author, institution, and country were Rowe FJ (n = 17), League of European Research Universities (n = 45), and England (n = 54), respectively. The keywords with the longest burst period are field defect, hemineglect, disorder, and quality of life.ConclusionThis study analyzes the papers on the role of visual perception after stroke in the past 10 years and provides a new perspective for research in this field. At present, the number of articles in this field is not large and the cooperation network is not close enough. In the future, it is necessary to strengthen the cooperation among various countries, institutions, and authors. In addition, large samples and randomized controlled trials are needed to identify the potential treatments and pathophysiology for visual perceptual impairment after stroke.</p

Amino acid substitution in Domain IV of Osiaa23 prevents the protein-protein interactions between Osiaa23 and OsARFs.

<p>Interactions between Osiaa23 and OsARFs, Osiaa23-R5 and OsARFs in the yeast two-hybrid system. 1, positive control; 2, negative control; 3, Osiaa23 + OsARF6; 4, Osiaa23 + OsARF12; 5, Osiss23 + OsARF16; 6, Osiaa23 + OsARF17; 7, Osiaa23 + OsARF25; 8, Osiaa23-R5 + OsARF6; 9, Osiaa23-R5 + OsARF12; 10, Osiaa23-R5 + OsARF16; 11, Osiaa23-R5 + OsARF17; 12, Osiaa23-R5 + OsARF25. Yeast was grown on medium without leucine and tryptophan (SD -Leu/ -Trp) as a contral (A) and medium without leucine, tryptophan, histidine and ade (SD -Trp/ -Leu/ -Ade/ -His) to test the protein-protein interactions (B).</p