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This study introduces an approach to photocatalytic hydrogen production through a dye-sensitized photocatalytic system employing MXene (Ti 3 C 2 T x) and a non-noble cobalt metal catalyst. It was demonstrated that simple integration of eosin Y, Ti 3 C 2 T x and cobalt salt (CoSO 4) significantly enhances the photocatalytic hydrogen evolution, outperforming the corresponding system that does not include Ti 3 C 2 T x. The key to this enhanced performance lies in the unique properties of MXene material, which facilitates effective electron transfer and acts as a support for dye and catalyst. The successful well-dispersed decoration of small (2–3 nm) cobalt-based nanoparticles on the Ti 3 C 2 T x sheet via in situ photodeposition was confirmed by transmission electron microscopy (TEM) and X-ray Photoelectron Spectroscopy (XPS). The optimal hydrogen production rates were achieved with a Co to Ti 3 C 2 T x mass ratio of 15%. This optimized interaction results in a hydrogen evolution rate of 40.1 mmol h−1 g−1 and an apparent quantum efficiency (AQE) of 35.4% at 505 nm. These findings highlight the potential of Ti 3 C 2 T x as a versatile component in photocatalytic systems, particularly effective when paired with economically viable, earth-abundant catalysts like cobalt. [Display omitted] • In situ Co [2]⁺ photodeposition on Ti₃C₂Tₓ nearly triples hydrogen production. • The optimized photocatalytic H 2 efficiency is enhanced to 40.1 mmol h⁻1 g⁻1. • EY/Ti 3 C 2 T x /Co NPs reaches 35.4% AQE at 505 nm. • Enhanced photocatalytic activity due to effective charge separation. [ABSTRACT FROM AUTHOR]

[Display omitted] • Effective approach to improve cold flow properties of hydrocracking products proposed; • Combination of USY and ZSM-23 ensures good conversion of n-alkanes and isoalkanes; • Appropriately selected combination of USY and ZSM-23 maintains activity and selectivity; • Cold flow properties improved without compromising the selectivity to target products. The effect of the combined use of three-dimensional large-pore USY zeolite and one-dimensional medium-pore ZSM-23 zeolite to enhance the cold flow properties of hydrocracking products was studied. Based on the results of monozeolite catalysts testing in hexadecane hydroconversion, the compositions of bizeolite catalysts for vacuum gas oil hydrocracking were selected. The catalyst compositions were selected, considering that both zeolite components operate in a similar temperature range and contribute to hexadecane conversion. It has been shown that due to an appropriately selected combination of USY and ZSM-23 zeolites in the catalyst, both zeolites perform together, complementing each other, which ensures good conversion of both n-alkanes and isoalkanes during vacuum gas oil hydrocracking. As a result, it is possible to significantly improve the cold flow properties of the obtained hydrocracking products while maintaining the activity and selectivity for the target products of Pt/USY-ZSM-23 catalyst at the level of conventional Pt/USY catalyst. The cold filter plugging point of the diesel fraction decreases from −10 to less than −44 °C and the pour point from −17 to less than −50 °C. The pour point of lube base oil decreases from 23 to less than −27 °C. The improvement of the cold flow properties is accompanied by only a slight worsening of the other important product characteristics, such as diesel fraction cetane index and lube base oil viscosity index. [ABSTRACT FROM AUTHOR]

Storytelling has always been a crucial, perhaps constitutive part of our lives. All communities have told stories. In recent years, software development is becoming increasingly recognized as a creative process that has a lot in common with the process of writing or telling a story. Aim : The objectives of this paper are: (a) to review and aptly classify current principles and approaches that describe software development as a form of storytelling; (b) to describe and understand the heuristic function of storytelling in software development; and (c) to discuss and single out the principles of storytelling that may play a role, hence constitute significant improvements to the practices of software developers. Method : To achieve these goals and objectives we conducted a systematic literature review of relevant scientific papers and subsequently analyzed them by means of a textual narrative synthesis. Results : More specifically, we retrieved, screened and examined 51 relevant publications. The synthesis we conducted allowed us to understand and better visualize the many interesting correspondences and analogies between those two seemingly different processes, namely storytelling and software development. In particular, in our work, we focused on describing and analyzing how certain principles underlying storytelling can be adapted and applied in current practices of software engineering. Conclusion : This paper presents and re-elaborates in a critical fashion and from a different angle a substantial body of knowledge and research recently carried out in the software development literature. [ABSTRACT FROM AUTHOR]

Yeast RAD54 gene, a member of the RAD52 epistasis group, plays an important role in homologous recombination and DNA double strand break repair. Rad54 belongs to the Snf2/Swi2 protein family, and it possesses a robust DNA-dependent ATPase activity, uses free energy from ATP hydrolysis to supercoil DNA, and cooperates with the Rad51 recombinase in DNA joint formation. There are two RAD54-homologous genes in human cells, hRAD54 and RAD54B. Mutations in these human genes have been found in tumors. These tumor-associated mutations map to conserved regions of the hRad54 and hRad54B proteins. Here we introduced the equivalent mutations into the Saccharomyces cerevisiae RAD54 gene in an effort to examine the functional consequences of these gene changes. One mutant, rad54 G484R, showed sensitivity to DNA-damaging agents and reduced homologous recombination rates, indicating a loss of function. Even though the purified rad54 G484R mutant protein retained the ability to bind DNA and interact with Rad51, it was nearly devoid of ATPase activity and was similarly defective in DNA supercoiling and D-loop formation. Two other mutants, rad54 N616S and rad54 D442Y, were not sensitive to genotoxic agents and behaved like the wild type allele in homologous recombination assays. Consistent with the mild phenotype associated with the rad54 N616S allele, its encoded protein was similar to wild type Rad54 protein in biochemical attributes. Because dysfunctional homologous recombination gives rise to genome instability, our results are consistent with the premise that tumor-associated mutations in hRad54 and Rad54B could contribute to the tumor phenotype or enhance the genome instability seen in tumor cells. [ABSTRACT FROM AUTHOR]