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The structure of the Tajik Basin is characterized by a series of NE-trending fold-thrust belts that share a common detachment layer composed of Upper Jurassic evaporite rocks. These fold-thrust structures, thrusting face to face, converge toward the Vakhsh Depression. Due to limitations of seismic and drilling data, the controlling factors of the formation of the fold-thrust belts in the Tajik Basin remain controversial. Taking the Tajik Basin as a geological prototype, structural physical simulation experiments were conducted to decipher the controlling factors of salt-related structure deformation. The experiment results indicate that the tectonic deformation of the strata above the Jurassic evaporite rocks in the Tajik Basin is mainly controlled by the detachment layer of the Upper Jurassic evaporite rocks. The early salt diapirs in the Upper Jurassic played a key role in the formation of the thrust belts. Additionally, tectonic stress near the mountain front was rapidly transmitted to the inner basin due to the load of the structural wedge. Based on the results of physical simulation experiments, we speculate that the tectonic deformation of the subsalt strata and the basement in the Tajik Basin is primarily controlled by a deep detachment layer. The deformation of the subsalt strata is relatively gentle, which is conducive to the formation of large-scale, broad and gentle anticlinal structures. The anticlinal structures of the subsalt strata can form effective traps due to the sealing effect of the Upper Jurassic evaporite layer, offering promising exploration potential.

Purpose: To review past research on teaching methods courses with preservice physical education teachers and preservice elementary classroom teachers. Method: This study was guided by the "2017 National Standards for Initial Physical Education Teacher Education." A thorough literature search was conducted using online databases, and a total of 28 articles were selected for review. Results: About two thirds of the reviewed studies were related to elementary methods courses, and 10.7% of the studies were quantitative. Perceptions and confidence in teaching physical education were the focus of studies for preservice elementary classroom teachers, while pedagogical knowledge development and restructuring was the primary emphasis for preservice physical education teachers via elementary methods course. Research on the secondary methods course yielded no salient themes. Conclusions: Research on the topic has been incongruent with the national standards. More experimental and quantitative studies are needed in the future.

Background: For over six decades, in many countries, youth fitness testing has been seen as a critical component of physical education programs. As such, preservice physical education teachers (PPETs) must be trained appropriately for effective youth fitness testing, with careful consideration dedicated to PPETs perceptions, since many purported attitudes to have an effect on behavior (Ajzen 1985. "From intentions to actions: A theory of planned behavior." In "Action control: From cognition to behavior," edited by J. Kuhl, and J. Beckmann. Berlin: Springer-Verlag). Our understanding on PPETs' attitudes toward fitness testing is limited, with no research found on the topic for Chinese PPETs. Purposes: The primary purpose of the current study was to examine the overall attitudes of Chinese PPETs' toward school-based fitness testing. The secondary purpose was to test differences of attitudes in gender and years in college, and interaction between these two independent variables. Method: A total of 1012 PPETs from 11 Chinese universities participated in the study. Participants consisted of 28.3% of freshmen, 37.0% of sophomore, 19.5% of junior, and 15.2% of senior, with an average age of 21.2. Participants were recruited via emails and asked to complete a previously validated 16-item survey in English, measuring PPETs' attitudes toward fitness tests (Keating et al. 2008. "Physical Education Teacher Attitudes toward Fitness Tests Scale: Cross-Revalidation and Modification." "Measurement in Physical Education and Exercise Science" 12 (2): 72. https://doi.org/10.1080/10913670801903969). The survey consisted of two domains (i.e. beliefs of the importance of fitness testing and effects of fitness test implementation with two subdomains: enjoyment of fitness test implementation and enjoyment of using fitness test results). The survey was translated into Chinese for distribution. ANOVA was performed to test overall attitude differences in gender and year in college, while two-way MANOVA was used to examine attitude subdomain differences in gender and year in college. Results: The overall attitudes of Chinese PPETs were slightly positive, and consistent with existing literature. Only significant gender differences in both overall attitudes and the three subdomains were found. It was also found that year in college was not significant, nor was the interaction between gender and year in college. These results may suggest that PETE programs have little effect on improving PPETs' attitudes toward fitness testing. Conclusions: Chinese PPETs' attitudes toward youth fitness testing were only slightly positive. Gender may affect Chinese PPETs' attitudes, while surprisingly PETE programs may not focus on PPETs' attitudes toward fitness testing. Future interventions on improving Chinese PPETs' attitudes toward fitness tests are needed, with specialized interests targeting female candidates during PETE training programs.

Electrocatalysts are the key components of electrochemical energy storage and conversion devices. High performance electrocatalysts can effectively reduce the energy barrier of the chemical reactions, thereby improving the conversion efficiency of energy devices. The electrocatalytic reaction mainly experiences adsorption and desorption of molecules (reactants, intermediates and products) on a catalyst surface, accompanied by charge transfer processes. Therefore, surface control of electrocatalysts plays a pivotal role in catalyst design and optimization. In recent years, many studies have revealed that the rational design and regulation of a defect structure can result in rearrangement of the atomic structure on the catalyst surface, thereby efficaciously promoting the electrocatalytic performance. However, the relationship between defects and catalytic properties still remains to be understood. In this review, the types of defects, synthesis methods and characterization techniques are comprehensively summarized, and then the intrinsic relationship between defects and electrocatalytic performance is discussed. Moreover, the application and development of defects are reviewed in detail. Finally, the challenges existing in defective electrocatalysts are summarized and prospected, and the future research direction is also suggested. We hope that this review will provide some principal guidance and reference for researchers engaged in defect and catalysis research, better help researchers understand the research status and development trends in the field of defects and catalysis, and expand the application of high-performance defective electrocatalysts to the field of electrocatalytic engineering. [ABSTRACT FROM AUTHOR]

The electrochemical coupling of biomass oxidation and nitrogen conversion presents a potential strategy for high value‐added chemicals and nitrogen cycling. Herein, in this work, CuO/Co3O4 with heterogeneous interface is successfully constructed as a bifunctional catalyst for the electrooxidation of 5‐hydroxymethylfurfural to 2,5‐furandicarboxylic acid and the electroreduction of nitrate to ammonia (NH3). The open‐circuit potential spontaneous experiment shows that more 5‐hydroxymethylfurfural molecules are adsorbed in the Helmholtz layer of the CuO/Co3O4 composite, which certifies that the CuO/Co3O4 heterostructure is conducive to the kinetic adsorption of 5‐hydroxymethylfurfural. In situ electrochemical impedance spectroscopy further shows that CuO/Co3O4 has faster reaction kinetics and lower reaction potential in oxygen evolution reaction and 5‐hydroxymethylfurfural electrocatalytic oxidation. Moreover, CuO/Co3O4 also has a good reduction effect on NO3−. The ex‐situ Raman spectroscopy shows that under the reduction potential, the metal oxide is reduced, and the generated Cu2O can be used as a new active site for the reaction to promote the electrocatalytic conversion of NO3− to NH3 synthesis. This work provides valuable guidance for the synthesis of value‐added chemicals by 5‐hydroxymethylfurfural electrocatalytic oxidation coupled with NO3− while efficiently producing NH3. [ABSTRACT FROM AUTHOR]

Background: Patients with sepsis frequently develop septic cardiomyopathy, which is known to be closely related to excessive inflammatory responses. Indole-3-propionic acid (IPA) is a tryptophan metabolite with anti-inflammatory properties that have been demonstrated in various studies. In this study, we investigated the underlying mechanisms and therapeutic role of IPA in septic cardiomyopathy. Methods: To investigate the role of IPA in septic cardiomyopathy, we constructed a lipopolysaccharide (LPS)-induced rat model of septic cardiomyopathy, and treated rats with IPA. Inflammatory factors and the NF-κB/NLRP3 pathway were evaluated in myocardial tissues and cells after IPA treatment using RT-qPCR, ELISA, Western blotting, and immunohistochemistry. To further elucidate the role of the aryl hydrocarbon receptor (AhR), we detected changes in inflammatory mediators and the NF-κB/NLRP3 pathway in in vivo and in vitro models of septic cardiomyopathy, which were treated with the AhR antagonist CH-223191 and/or AhR agonist FICZ. Results: IPA supplementation improved cardiac dysfunction in rats with septic cardiomyopathy. IPA reduced inflammatory cytokine release and inhibited NF-κB/NLRP3 signaling pathway in myocardial tissue and in H9c2 cells. CH-223191 impaired the anti-inflammatory effect of IPA in LPS-treated cells, whereas FICZ exerted the same effect as IPA. IPA also exhibited anti-inflammatory activity by binding to the AhR. Our results indicated that IPA attenuated septic cardiomyopathy in rats via AhR/NF-κB/NLRP3 signaling. Conclusion: Our study revealed that IPA improved left heart dysfunction and myocardial inflammation caused by sepsis via AhR/NF-κB/NLRP3 signaling, suggesting that IPA is a potential therapy for septic cardiomyopathy. [ABSTRACT FROM AUTHOR]

Electrocatalytic C−N couplings are promising alternatives to construct C−N bonds and to synthesize vital chemicals, including amine, amide, amino acid, oxime, imine, and nitrile, under ambient conditions. In recent years, the electrocatalytic C−N coupling has attracted a wide range of research interest and has achieved considerable developments. Here, the electrocatalytic C−N coupling is systematically reviewed aiming at reductive cathode and oxidative anode. In the cathodic part, the electrocatalytic coupling reaction systems, the corresponding design principles of electrocatalysts for different reaction systems, the mechanism studies from experimental and theoretical aspects, and the application‐oriented electrocatalytic devices for electrocatalytic C−N couplings are summarized. Anodic C−N coupling offers a potential approach to replace the conventional energy‐demand synthesis protocols, and is an indispensable part of the green and controllable construction of unsaturated C = N and C≡N bonds. According to the principle that electron transfer is the crucial point in anodic C−N coupling, the anodic coupling reactions are sorted out based on the direct and the indirect C−N coupling paths, respectively. Finally, the challenges and outlooks in this field are proposed. Electrocatalytic C−N coupling is an appealing research topic in electrochemistry and possesses infinite possibilities in the future. [ABSTRACT FROM AUTHOR]

This paper presents a new design method of digital baseband signal for generating fully digital programmable optical frequency comb (OFC), which solves the problem of how to optimally select the digital baseband signal when OFC is generated by binary digital signal modulation. The inverse Fourier transform is used to study the waveform of binary digital signal which is used to generate OFC. It is found that the number of "0" bits of digital signal determines the flatness of comb lines. Based on this, a tunable ultra‐fine and ultra‐flat OFC was obtained by using a digital signal containing a large number of "0" bits in the experiment. This saves substantial computing time and resources compared to the current method of the k‐means clustering algorithm. [ABSTRACT FROM AUTHOR]

Sunflower broomrape (Orobanche cumana Wallr.) has severely restricted the development of the sunflower industry in China, and more efficient and convenient control methods are urgently needed. In this experiment, we investigated the effects of N, P and silica fertilizers on the parasitism rate of O. cumana, as well as on the yield of sunflower and native microbial communities in the field. Firstly, pot experiments were conducted to select the most effective fertilization method and to determine the physiological and biochemical indexes of sunflowers. Subsequently, field application studies were carried out to determine the physiological indexes, yield, O. cumana parasitism on sunflower, and the effect on the indigenous microbial community. The results demonstrate that compared with the CNP treatment (Control), the number of parasites under the N1P5 treatment significantly decreased by 66.15%. The exogenous application of silica can significantly reduce the number of O. cumana parasites. The treatments with N1P5 (N/P = 1:5) and available SiO2 content higher than 40 mg/kg (NS2, NS3, SF2 and SF3) significantly increased superoxide dismutase (SOD) activity and decreased malondialdehyde (MDA) content in sunflower leaves. In the field, fertilization significantly decreased the number of O. cumana parasites. The S treatment improved the native microbial community structure and enriched beneficial microorganisms, including Vicinamibacteria and Pyrinomonadaceae. Additionally, applying the S treatment significantly increased sunflower yield by 23.82% and crude protein content by 20.20%. In summary, the application of silicon fertilizer can effectively improve the host microbial community, reduce O. cumana parasitism and improve the yield and quality of sunflower. [ABSTRACT FROM AUTHOR]