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Materials (Basel, Switzerland) Jan 2024As derivatives of metal halide perovskite materials, low-dimensional metal halide materials have become important materials that have attracted much attention in recent...
As derivatives of metal halide perovskite materials, low-dimensional metal halide materials have become important materials that have attracted much attention in recent years. As one branch, zinc-based metal halides have the potential for practical applications due to their lead-free, low-toxicity and high-stability characteristics. However, pure zinc-based metal halide materials are still limited by their poor optical properties and cannot achieve large-scale practical applications. Therefore, in this work, we report an organic-inorganic hybrid zero-dimensional zinc bromide, (TDMP)ZnBr, using transition metal Mn ions as dopants and incorporating them into the (TDMP)ZnBr lattice. The original non-emissive (TDMP)ZnBr exhibits bright green emission under the excitation of external UV light after the introduction of Mn ions with a PL peak position located at 538 nm and a PLQY of up to 91.2%. Through the characterization of relevant photophysical properties and the results of theoretical calculations, we confirm that this green emission in Mn:(TDMP)ZnBr originates from the T → A optical transition process of Mn ions in the lattice structure, and the near-unity PLQY benefits from highly localized electrons generated by the unique zero-dimensional structure of the host material (TDMP)ZnBr. This work provides theoretical guidance and reference for expanding the family of zinc-based metal halide materials and improving and controlling their optical properties through ion doping.
PubMed: 38591378
DOI: 10.3390/ma17030562 -
Heliyon Apr 2024By analysing the factors influencing secondary vocational students' learning burnout in the context of social media, this study unearthed the underlying causes of...
Analysing influencing factors and correlation paths of learning burnout among secondary vocational students in the context of social media: An integrated ISM-MICMAC approach.
By analysing the factors influencing secondary vocational students' learning burnout in the context of social media, this study unearthed the underlying causes of learning burnout. It also determined the correlation paths among the factors influencing learning burnout, providing references for educational and pedagogical improvement. This contributes to preventing secondary vocational students' learning burnout and enhancing learning efficiency in secondary vocational schools. Combined with previous research results and a theoretical basis, this study identifies 10 influencing factors employing the Delphi method, and uses Interpretative Structural Modelling (ISM) and Matrice d' Impacts Croisés Multiplication Appliqués à un Classement (MICMAC) to elucidate the relationship between influencing factors of learning burnout among secondary vocational students in the context of social media. This study also constructs a corresponding mechanism model and subsequently proposes prevention and improvement strategies. The results show that the overdevelopment of social media, as driving factors, has the greatest impact on secondary vocational students' learning burnout. Simultaneously, it takes the lead in addressing cognitive bias among students, decreased self-control, and low learning efficiency, factors that contribute to learning burnout. This is particularly beneficial in alleviating the degree of learning burnout among secondary vocational students in the context of social media and improves overall learning outcomes for these students. The hierarchical structure and correlation paths identified in this study offer robust invaluable guidance for developing a scientific program to address the problem of learning burnout among this demographic. This includes implementing related educational practises, thereby reducing the unpredictability of the practical applications.
PubMed: 38586410
DOI: 10.1016/j.heliyon.2024.e28696 -
Frontiers in Bioengineering and... 2024TetR-family transcriptional regulators are widely distributed among bacteria and involved in various cellular processes such as multidrug and inhibitor resistance. is a...
TetR-family transcriptional regulators are widely distributed among bacteria and involved in various cellular processes such as multidrug and inhibitor resistance. is a industrial bacterium for lignocellulosic ethanol production. Although TetR-family regulators and their associated RND-family efflux pumps in have been identified to be differentially expressed under various inhibitors and stressful conditions, there are no systematic investigation yet. In this study, bioinformatic analyses indicated that there are three TetR-family transcriptional regulators (, , ) and two RND-family efflux pumps (, ) adjacent to corresponding TetR-family regulators of ZMO0281 and ZMO0963 in . Genetics studies were then carried out with various mutants of TetR-family regulators constructed, and was characterized to be related to acetate tolerance. Combining transcriptomics and dual-reporter gene system, this study demonstrated that three TetR-family regulators repressed their adjacent genes specifically. Moreover, TetR-family regulator ZMO0281 might also be involved in other cellular processes in the presence of acetate. In addition, the upregulation of RND-family efflux pumps due to deletion might lead to an energy imbalance and decreased cell growth in under acetate stress. The systematic investigation of all three TetR-family regulators and their roles on a major lignocellulosic inhibitor acetate tolerance in thus not only unravels the molecular mechanisms of TetR-family regulators and their potential cross-talks on regulating RND-family efflux pumps and other genes in , but also provides guidance on understanding the roles of multiple regulators of same family in and other microorganisms for efficient lignocellulosic biochemical production.
PubMed: 38585710
DOI: 10.3389/fbioe.2024.1385519 -
RSC Advances Mar 2024Nanoparticle (NP) drug delivery systems have shown promise in tumor therapy. However, limitations such as susceptibility to immune clearance and poor targeting in a... (Review)
Review
Nanoparticle (NP) drug delivery systems have shown promise in tumor therapy. However, limitations such as susceptibility to immune clearance and poor targeting in a complex intercellular environment still exist. Recently, cancer cell membrane-encapsulated nanoparticles (CCM-NPs) constructed using biomimetic nanotechnology have been developed to overcome these problems. Proteins on the membrane surface of cancer cells can provide a wide range of activities for CCM-NPs, including immune escape and homologous cell recognition properties. Meanwhile, the surface of the cancer cell membrane exhibits obvious antigen enrichment, so that CCM-NPs can transmit tumor-specific antigen, activate a downstream immune response, and produce an effective anti-tumor effect. In this review, we first provided an overview of the functions of cancer cell membranes and summarized the preparation techniques and characterization methods of CCM-NPs. Then, we focused on the application of CCM-NPs in tumor therapy. In addition, we summarized the functional modifications of cancer cell membranes and compiled the patent applications related to CCM-NPs in recent years. Finally, we proposed the future challenges and directions of this technology in order to provide guidance for researchers in this field.
PubMed: 38567339
DOI: 10.1039/d4ra01026d -
Turk Gogus Kalp Damar Cerrahisi Dergisi Jan 2024In this meta-analysis, we aimed to systematically examine the relationship between body mass index and major adverse cardiovascular events in acute coronary syndrome...
BACKGROUND
In this meta-analysis, we aimed to systematically examine the relationship between body mass index and major adverse cardiovascular events in acute coronary syndrome patients and to provide theoretical guidance for body weight management in these patients.
METHODS
A comprehensive analysis of applicable research published between 2008 and 2021 was conducted using the PubMed, Cochrane, Web of Science, Wanfang, and CNKI databases. Extracted odds ratios from the randomized-controlled studies were pooled using fixed-effects meta-analysis. Publication bias was addressed through evaluation methods such as funnel plot or sensitivity analysis.
RESULTS
Ten studies with a total of 58,992 individuals were included. The consequences of this meta-analysis confirmed that, compared to normal body mass index, patients with acute coronary syndrome significantly increased the risk of major adverse cardiovascular events (odds ratio= 1.20; 95% confidence interval: 1.12-1.29, p<0.001).
CONCLUSION
Patients with acute coronary syndrome being overweight or obese significantly increased the risk of major adverse cardiovascular events compared to those with normal body mass index. The results suggest that patients may focus on weight management to reduce the risk of major adverse cardiovascular events in acute coronary syndrome.
PubMed: 38545361
DOI: 10.5606/tgkdc.dergisi.2024.24405 -
Medicine Mar 2024Studying some professions is so demanding that if not well managed it leads to severe stress, withdrawal, burnout, and other health-related problems. Hence, practical... (Randomized Controlled Trial)
Randomized Controlled Trial
Impact of stress coping strategy in modifying perceptions of school stress among adult learners enrolled in Home Economics and Indigenous Textiles Education in Nigerian Universities.
BACKGROUND/OBJECTIVE
Studying some professions is so demanding that if not well managed it leads to severe stress, withdrawal, burnout, and other health-related problems. Hence, practical engagement and exhibition of catering, cooking, and home management are so tasking as they are time-consuming and very intensive. Many students in the specialties experience excess academic loads and internal and external demands. Given these, this study tested the impact of cognitive behavior coping strategy on school stress among adult learners enrolled in Home Economic and Indigenous Textile Education.
METHODS
A pretest-posttest randomized control group design was applied. Ninety-five students (43 [45.3%] males; 52 [54.7%] females) participated in the current study. Stress assessment was induced and then students were randomly allocated to the cognitive behavior coping strategy group and the waitlist conditions. Later, students on the waitlist received the cognitive behavior coping strategy contents. Data collected were analyzed using analysis of covariance.
RESULTS
Results showed that at pretest, there was no significant difference among the participants in the 2 groups as measured by Educational Stress Scale and Perceived Stress Scale scores. However, the post-intervention test result showed a long-term impact of cognitive behavior coping strategy in improving the management of school stress among students.
CONCLUSION
This study suggests that cognitive behavior coping strategy has a long-term impact on modifying the students' perception of school stress in a sample of adult learners enrolled in Home Economic and Indigenous Textile Education.
Topics: Adult; Female; Humans; Male; Adaptation, Psychological; Coping Skills; Psychological Tests; Schools; Self Report; Stress, Psychological; Universities
PubMed: 38518029
DOI: 10.1097/MD.0000000000037392 -
Heliyon Mar 2024Students in higher vocational education are always encountering various challenges. The way they attempt to conquer these challenges influences their success in...
Students in higher vocational education are always encountering various challenges. The way they attempt to conquer these challenges influences their success in achieving their academic goals. With the development of the times, the needs of students in China's vocational colleges to cope with challenges are also changing. In order to understand the changing needs of these students to cope with the challenges, based on Trautwein and Bosse's academic counseling demand model and Knowles's demand theory, this study adopted semi-structured interviews, key event collection methods, and purposive sampling to select 12 students of different grades majoring in art and design in a higher vocational college in Guangzhou, China. With reference to related studies on the key academic needs of students, interview outlines were designed, interviews were conducted, and coding and analysis were performed. Students' experiences were categorized according to learning-related, individual, organization, and social constructs. The study results showed that the academic counseling needs of China's higher vocational art and design students mainly focused on the learning-related construct, such as understanding the courses and course systems they were majoring in, setting and realizing academic goals, coping with setbacks, pressure and other students' comprehensive evaluation. This was followed by dealing with personal and financial issues, building social circles and peer relationships, and so on. Therefore, for students to overcome challenges and achieve academic goals, it is helpful to strengthen the collaboration between professional teachers and counselors, the influence of peers, the focus on academic consulting work related to learning, and to explore and carry out guidance on students' individual needs in higher vocational colleges.
PubMed: 38509979
DOI: 10.1016/j.heliyon.2024.e27708 -
PloS One 2024We collect Chinese A-share listed companies from 2013 to 2022 as samples and use the multi-period difference-in-difference model (DID) to study the impact of...
We collect Chinese A-share listed companies from 2013 to 2022 as samples and use the multi-period difference-in-difference model (DID) to study the impact of multilingual ESG report disclosure on the enthusiasm of foreign investors. We find that Chinese companies disclose ESG reports in both Chinese and English stimulate the enthusiasm of foreign investors to hold shares. The main manifestations are the expansion of the company's foreign shareholding quota and the increase in the number of shareholders. Further research show that disclosure of multilingual ESG reports makes up for the readability of company annual reports for foreign investors. In the case of companies with poor analyst attention and comparability of accounting information, and companies that hire non-big four auditing firms to audit financial reports, multilingual ESG report disclosures are more positive for foreign shareholdings. The participation of the central investor service center in corporate governance is weak, the degree of regional cultural integration is low, and the disclosure of English ESG reports by Chinese enterprises is conducive to promoting the enthusiasm of foreign shareholding. The research conclusions provide theoretical guidance and empirical reference for enterprises to expand information disclosure methods to foreign investors and attract overseas capital investment.
PubMed: 38452011
DOI: 10.1371/journal.pone.0299643 -
Medicine Mar 2024Work demands in the contemporary Nigerian work environment are a critical concern to many including occupational stress researchers. This informed the current study to... (Randomized Controlled Trial)
Randomized Controlled Trial
BACKGROUND/OBJECTIVE
Work demands in the contemporary Nigerian work environment are a critical concern to many including occupational stress researchers. This informed the current study to investigate the effect of psychological intervention in cushioning teachers' stress in public secondary schools in Nigeria.
METHODS
A randomized control design was applied. The participants were 80 secondary school home economics teachers. They were randomized into 2 groups, that is, treatment and waitlisted arms. The former was designed as a 12-session cognitive behavior intervention while the latter was waitlisted and the members received theirs at the end of the study. Both group members were evaluated at the pretest, posttest, and follow-up test to understand the baseline of the problem, treatment outcome, and sustainability respectively. Perceived Stress Scale and Teacher irrational belief scale were used as test tools. Data from the 3-time tests were analyzed using multivariate statistic.
RESULTS
The main effect results showed a significant reduction in teachers' stress and irrational beliefs due to cognitive behavior intervention. The follow-up test results also indicate that the impactful benefit of cognitive behavioral intervention on job stress reduction was significantly sustained over time. Regarding the influence of gender, the result shows no significant influence of gender on teachers' job stress in schools.
CONCLUSION
This study suggests that cognitive behavior intervention can decrease work-induced stress among secondary school home economics teachers. Therefore, the management of schools is enjoined to deploy the services of cognitive behavior therapists to monitor the mood and mental health of teachers.
Topics: Humans; Occupational Stress; Policy; Psychological Tests; Psychosocial Intervention; School Teachers; Schools; Self Report; Stress, Psychological
PubMed: 38428875
DOI: 10.1097/MD.0000000000037174 -
Food Chemistry: X Mar 2024Tea varieties play a crucial role on the quality formation of matcha. This research aimed to examine the impact of four specific tea plant varieties (Okumidori, Longjing...
Tea varieties play a crucial role on the quality formation of matcha. This research aimed to examine the impact of four specific tea plant varieties (Okumidori, Longjing 43, Zhongcha108, and E'Cha 1) on various aspects of matcha, including sensory evaluation, major components, color quality, volatile and non-volatile metabolomic profiles. The findings revealed that the levels of tea polyphenols, ester catechins, nonester catechins, and amino acids varied among these four varieties. Notably, 177 significant different metabolites, such as phenolic acids, flavonoids, tannins, alkaloids were identified among 1383 non-volatile compounds. In addition, 97 key aroma-active compounds were identified based on their odor activity value exceeding 1. Aldehydes, heterocyclic compounds, and ketones were closely associated with the formation of volatile metabolites. Overall, this study enhances our understanding of how different tea plant varieties impact the quality of matcha, and can provide valuable guidance for improving matcha varieties in a favorable direction.
PubMed: 38420509
DOI: 10.1016/j.fochx.2024.101234