Liver fat depot in inflammatory bowel disease: influenced mainly by nutrition and indicates endoscopic activity

This is the original dataset for an research paper

NO Emissions from Oxidizer-Staged Combustion of Superfine Pulverized Coal in the O₂/CO₂ Atmosphere

The CO₂ control technologies have been studied extensively in recent years, among which the oxy-fuel combustion shows a vast number of advantages to be explored commercially in the near future. However, unexpected problems, such as bad combustion characteristics and serious slagging and depositing issues, show up with the replacement of N₂ by CO₂. These inherent disadvantages in normal O₂/CO₂ combustion can be restrained via combining the superfine pulverized coal and oxy-fuel combustion technology. The axial NO emission characteristics of this new technology were focused here. The effects of the oxidizer staging were also studied in detail. Results indicate that the axial NO emissions of the unstaged O₂/CO₂ combustion basically showed “M” type of distributions along the furnace. The “M” type can be divided into the main homogeneous and heterogeneous reaction zones. The oxidizer-staged O₂/CO₂ combustion can mitigate NO emissions effectively. Coals with smaller particle sizes and higher volatiles are more advantageous for eliminating NO in the staged O₂/CO₂ combustion technology. The superfine pulverized coal used with certain low NO combustion technologies shows significant superiority in both combustion performance and NO abatement

Nanosized Metal Oxide and Nanobelts Prepared by Selective Dealloying of Ti-Based Amorphous Powders

Two typical nanomaterials, nanosized metal oxides and nanobelts, are obtained in one-pot selective dealloying process by using multiple-component Ti-based amorphous powders as dealloying precursors. The microstructure and photoelectric conversion property of the as-synthesized Zr-doped nanobelts are comprehensively investigated. Particularly, a core–shell structure, for example, residual amorphous alloy as the microsized core and nanosized metal oxide composites (mainly TiO₂ and CuO) as the shell, forms as a byproduct of the selective dealloying. These resultant metal oxide composites show large specific surface area, and superior adsorption efficiency and capacity for removing toxic Cr⁶⁺ in aqueous solution. The differences in the standard electrode potentials between the multiple-component elements in amorphous powders trigger their selective dealloying in alkaline solutions

Application of the CC(<i>P</i>;<i>Q</i>) Hierarchy of Coupled-Cluster Methods to the Beryllium Dimer

The performance of coupled-cluster approaches with higher-than-doubly excited clusters, including the CCSD­(T), CCSD(2)_T, CR-CC­(2,3), CCSD­(TQ), and CR-CC­(2,4) corrections to CCSD, the active-space CCSDt, CCSDtq, and CCSDTq methods, and the CC­(t;3), CC­(t,q;3), CC­(t,q;3,4), and CC­(q;4) corrections to CCSDt, CCSDtq, and CCSDTq resulting from the CC­(<i>P</i>;<i>Q</i>) formalism, in reproducing the CCSDT and CCSDTQ potential energy curves and vibrational term values characterizing Be₂ in its electronic ground state is assessed. The correlation-consistent aug-cc-pV<i>n</i>Z and aug-cc-pCV<i>n</i>Z (<i>n</i> = T and Q) basis sets are employed. Among the CCSD-based corrections, the completely renormalized CR-CC­(2,3) and CR-CC­(2,4) approaches perform the best. The CC­(t;3), CC­(t,q;3), CC­(t,q;3,4), and CC­(q;4) methods, especially CC­(t;3) and CC­(q;4), outperform other employed approaches in reproducing the CCSDT and CCSDTQ data. Composite schemes combining the all-electron CCSDT calculations extrapolated to the complete basis set limit with the frozen-core CC­(q;4) and CCSDTQ computations using the aug-cc-pVTZ basis to account for connected quadruple excitations reproduce the latest experimental vibrational spectrum of Be₂ to within 4–5 cm^–1, when the vibrational spacings are examined, with typical errors being below 1–2 cm^–1. The resulting binding energies and equilibrium bond lengths agree with their experimentally derived counterparts to within ∼10 cm^–1 and 0.01 Å

Metal–Organic Framework-Based Self-Supporting Nanoparticle Arrays for Catalytic Water Splitting

One of the efficient methods for achieving the carbon peaking and carbon neutrality goals is the generation of hydrogen from water splitting. It has been proven that reasonable nanoengineering is an important strategy to increase the performance of non-noble-metal catalysts. A metal–organic framework (MOF) is a kind of porous and versatile nanomaterial that has great potential for industrial application in water electrolysis technology. However, MOF materials are mostly powders, which greatly limits their ability to be used directly as electrode materials in practical applications. Therefore, this paper innovatively designs a general strategy to prepare controlled MOF-based three-dimensional nanoparticle-array-structured catalysts with self-support and well-orientation on the surface of nickel foam. This strategy consists of simple hydrothermal, stable stirring, and high-temperature calcination methods. In this work, the self-supporting nanoparticle-array catalyst (ZIF-67/NiCo-S/NF) is successfully prepared using 2-methylimidazole cobalt salt (ZIF-67). The special structure and composition of ZIF-67/NiCo-S/NF provide several beneficial features such as a synergistic effect, high specific surface area, fast electron transport, more exposed active sites, and enhanced electrochemical stability. At room temperature and in a 1 M KOH solution, ZIF-67/NiCo-S/NF only needs 147 and 127 mV overpotentials to obtain a current density of 10 mA cm–2 for hydrogen and oxygen evolution reactions, respectively. The excellent performance of ZIF-67/NiCo-S/NF makes it a potential industrial water-splitting catalyst for hydrogen production. This study presents a general strategy for the synthesis of self-supporting nanoparticle arrays based on the MOF, which offers a new line for the preparation of more nanoscale electrocatalysts

Rh(III)-catalyzed synthesis of unsymmetrical acridines from aldehydes and azides using transient directing strategy in biomass-derived γ-valerolactone

<p>An Rh(III)-catalyzed synthesis of unsymmetrical acridines from aldehydes and azides through bilateral cyclization process in biomass-derived γ-valerolactone has been developed. The <i>in situ</i>-generated imino directing group (DG) from aldehyde and catalytic amount of BnNH₂ worked as a transient directing group, thereby no additional steps were required for installation and removal of the DG. A series of functional groups were well tolerated, affording the desired products in good to excellent yields. Gram-scale synthesis of the product was also achieved.</p

Gap Junctions Contribute to the Regulation of Walking-Like Activity in the Adult Mudpuppy (<i>Necturus Maculatus</i>)

<div><p>Although gap junctions are widely expressed in the developing central nervous system, the role of electrical coupling of neurons and glial cells via gap junctions in the spinal cord in adults is largely unknown. We investigated whether gap junctions are expressed in the mature spinal cord of the mudpuppy and tested the effects of applying gap junction blocker on the walking-like activity induced by NMDA or glutamate in an <i>in vitro</i> mudpuppy preparation. We found that glial and neural cells in the mudpuppy spinal cord expressed different types of connexins that include connexin 32 (Cx32), connexin 36 (Cx36), connexin 37 (Cx37), and connexin 43 (Cx43). Application of a battery of gap junction blockers from three different structural classes (carbenexolone, flufenamic acid, and long chain alcohols) substantially and consistently altered the locomotor-like activity in a dose-dependent manner. In contrast, these blockers did not significantly change the amplitude of the dorsal root reflex, indicating that gap junction blockers did not inhibit neuronal excitability nonselectively in the spinal cord. Taken together, these results suggest that gap junctions play a significant modulatory role in the spinal neural networks responsible for the generation of walking-like activity in the adult mudpuppy.</p></div

Table S1: Watermass architecture of the Ordovician–Silurian Yangtze Sea (South China) and its palaeogeographic implications

Table S

Figure S1: Watermass architecture of the Ordovician–Silurian Yangtze Sea (South China) and its palaeogeographic implications

Figure S

Depiction of the design for electrophysiology experiments.

<p>The figure presents the EMG activity simultaneously recorded from the flexor and extensor muscles during a typical experiment. Walking-like activity was induced with 50 μM NMDA and 10 μM D-serine. The initiation and termination of FFA application (300 μM) is indicated with arrows. Segments used for analysis of the initial changes and tested intervals are shown.</p