ahmedabdelwahed/Medical_papers_title_and_abstract_NLP_dataset huggingface dataset:
A moderated -mediation analysis of psychological empowerment: Sustainable leadership and sustainable performance

Business cannot escape the impact of climate change that is deteriorating day by day. Many organizations are becoming motivated more than ever to introduce new business models, modern technologies, and supportive policies with an effort to cope with critical issues connected to climate change. The present study has investigated the mediating effect of psychological safety on the relationship between sustainable leadership and sustainable performance as well as evaluating the moderation impact of psychological empowerment on that relationship. To date, the present research is the first attempt wherein the incorporation of psychological empowerment and psychological safety has redefined the association between sustainable leadership and sustainable performance. Using cluster sampling approach, the data for this research was collected from 405 SMEs from Kuala Lumpur (Malaysia), Jakarta (Indonesia), and Bandar Seri Begawan (Brunei Darussalam). Using structural equation modelling (variance-based), this study has analyzed proposed hypothesis. Hierarchical regression analysis (PROCESS Macro) in SPSS was employed to analyze the moderated-mediation impact of psychological empowerment. The empirical results confirm that sustainable leadership has a substantial impact on psychological safety. This study confirms that sustainable leadership has positive indirect effect on sustainable performance through psychological safety which amplifies in the presence of psychological empowerment. Establishment of a psychologically safe environment that encourages knowledge sharing and openness to speaking will improve sustainable performance in the presence of sustainable leadership. Therefore, the development of practices that promote psychological empowerment among employees is essential. This study broadens our understanding of sustainable performance toward sustainable leaders, its underlying mechanism and conditional effect, making contribution to the psychology of honeybee leadership. (C) 2020 Elsevier Ltd. All rights reserved.
Potential disruptive effects of copper-based antifouling paints on the biodiversity of coastal macrofouling communities

The expanded use of copper(I)-based antifouling paints (AF) has increased copper leaching into coastal environments, requiring attention and legislative restrictions for potential long-term effects on benthic populations. The ecological succession of macrofouling communities was analysed on wooden and stainless steel panels coated with four copper(I)-based AF (Paints A-D) immersed for 10 months in the Lagoon of Venice. With the exception of Paint B, which contained only copper(I) compounds and was based on hard-matrix technology, the other paints were based on self-polishing matrices and various booster biocides. The booster content was a mix of TBT compounds for Paint A, dichlofluanid for Paint C, Irgarol 1051, and chlorothalonil for Paint D. The macrofouling communities appeared dissimilar to those on the reference uncoated panels as regard the species richness, the coverage areas, and the biocoenosis structure. Generally, green algae, bryozoans, and barnacles were the most tolerant taxa and a negative species selection occurred for sponges, serpulids, and ascidians. Paints A and D showed the highest performance, and Paint D also prevented molluscs on wood panels. Paints B and C rapidly decreased their efficiency, the first probably due to the insoluble matrix with the highest biocidal leaching rate, and the second due to the presence of a booster with low toxicity. Paint B also inhibited red algae and molluscs, but Paint C did not reveal significant differences in types of species settlements with reference panels.
Biochar enhanced thermophilic anaerobic digestion of food waste: Focusing on biochar particle size, microbial community analysis and pilot-scale application

Effectiveness of biochar addition to enhance thermophilic semi-continuous anaerobic digestion (AD) of food waste for methane production was investigated with a focus on dosage and particle size of biochar, pilot-scale application and elucidation of methanogenic pathways. Optimal dosage range of biochar was determined as 7.5 to 15 g per L working volume based on lab-scale batch AD. Effects of biochar with different particle sizes at a model dosage of 15 g/L were evaluated in a semi-continuous AD experiment, results of which showed that all the examined biochars with different particle sizes (< 50 mu m to 3 cm) substantially enhanced the average methane yields (0.465-0.543 L/gVS) compared to control digesters which failed due to overloading (>= 3.04 gVS/L/d). No significant difference in methane yields, however, was observed among digesters with different particle sizes of biochars, except for 1-3 cm. The core reason for this phenomenon was that the biochars with different particle sizes had similar properties (e.g. density, surface area and pore size) and that the floating of large particle size (1-3 cm) of biochar with a density of 847 kg/m(3) was not conducive to microbial growth. Metagenomic analysis was performed to determine the predominant microbial species and to explain the main methanogenic pathways in biochar-amended digesters using 16S rRNA sequencing. In the biochar-amended digester, bacterial phylum Thermotogae containing a major genus of Defluviitoga was selectively enriched with gradual increase of organic loadings, while simultaneously enriched methanogen genera Methanothermobacter and Methanosarcina, which showed a synergy of hydrogenotrophic and acetoclastic methanogenic pathways, jointly enhanced the methane productivity. Both technical feasibility and economic feasibility of adding biochar with simple pretreatment (e.g. smash) were validated in the pilot-scale thermophilic semi-continuous AD operations.
Exploring US Shifts in Anti-Asian Sentiment with the Emergence of COVID-19

Background: Anecdotal reports suggest a rise in anti-Asian racial attitudes and discrimination in response to COVID-19. Racism can have significant social, economic, and health impacts, but there has been little systematic investigation of increases in anti-Asian prejudice. Methods: We utilized Twitter's Streaming Application Programming Interface (API) to collect 3,377,295 U.S. race-related tweets from November 2019-June 2020. Sentiment analysis was performed using support vector machine (SVM), a supervised machine learning model. Accuracy for identifying negative sentiments, comparing the machine learning model to manually labeled tweets was 91%. We investigated changes in racial sentiment before and following the emergence of COVID-19. Results: The proportion of negative tweets referencing Asians increased by 68.4% (from 9.79% in November to 16.49% in March). In contrast, the proportion of negative tweets referencing other racial/ethnic minorities (Blacks and Latinx) remained relatively stable during this time period, declining less than 1% for tweets referencing Blacks and increasing by 2% for tweets referencing Latinx. Common themes that emerged during the content analysis of a random subsample of 3300 tweets included: racism and blame (20%), anti-racism (20%), and daily life impact (27%). Conclusion: Social media data can be used to provide timely information to investigate shifts in area-level racial sentiment.
Industrialization, urbanization and CO2 emissions in Saudi Arabia: Asymmetry analysis

Keeping a sustainable environment is always a massive challenge for oil-exporting countries, and in that situation, industrialization and rapid growth of urbanization can add fuel to the fire. We investigate the effects of industrialization and urbanization on the CO2 emissions per capita in Saudi Arabia, utilizing an annual period 1968-2014. The results show that both industrialization and urbanization impede the environment with the inelastic effect of industrialization and elastic effect of urbanization on the emissions. An asymmetry in the relationship of industrialization and emissions is also found. The increasing industrialization has larger environmental effect than decreasing industrialization. We recommend the Saudi government to design tighter urban and industrial-environmental policies to put a halt on increasing CO2 emissions. (C) 2020 The Authors. Published by Elsevier Ltd.
Reparative and Immunomodulatory Potential of Low-Molecular-Weight Fractions of Secondary Metabolites of Bacillus sp

The experiment was performed on male BALB/c mice with modeled skin wound. Two chromatographic fractions of secondary metabolites of permafrost bacteria Bacillus sp., that represent a mixture of polyethylene-polypropylene glycols oligomers with a molecular weight from 900 to 1350 Da were used as therapeutic agents. Application of the test substances on the wound surface and their parenteral administration significantly accelerated wound epithelialization in comparison with untreated control, activated metabolic processes, and improved humoral immunity. In in vitro experiments, the fractions activated the synthesis of IFNγ and IL-4 by human peripheral blood mononuclear cells. We conclude that polyethylene-polypropylene glycol oligomers can be a part of effector molecules that determine the repair and immunomodulatory potential of secondary metabolites of permafrost microorganisms Bacillus sp.
Die Zukunft braucht Pflege — die Pflege braucht Zukunft

The need for nursing care will continue to rise, as will the need for qualified nursing staff. At the same time, more and more people are leaving the nursing profession. According to a recent representative online survey, 45 percent of Austrian nursing professionals in the acute care sector regularly consider leaving the profession. The International Council of Nurses (ICN) even warns of a worldwide "mass exodus" from nursing due to the Covid-19 pandemic. Markus Golla from IMC FH Krems pleads for a complete re-examination of nursing profession and of the perspective on aging in general. Two geriatric nurses give an insight into their everyday working lives and how they feel about working in this profession today. The problems of nursing have been known for years. Politicians are urgently called upon to set the course for a good future for nursing care in Austria.
Closed loop supply chain network for local and distributed plastic recycling for 3D printing: a MILP-based optimization approach

Recent research and initiatives increasingly propose a new approach, based on distributed plastic recycling for open-source (OS) 3D printing technologies, as a way to deal with the issue of plastic waste and to support the development of the circular economy (CE). Distributed recycling can be thought of as a sort of "smart grid", composed of small and coordinated recycling units. However, the operational complexity of this distributed approach limits its application. Furthermore, the environmental and economic advantages have yet to be demonstrated. This article therefore explores the economic and environmental feasibility of this distributed plastic recycling approach from a logistics perspective, as a step towards its validation. To achieve this, an optimization mixed integer linear programming (MILP) model was used as an evaluation tool, representing a local closed loop supply chain (CLSC) network. The proposed model is illustrated using a case study of a university seeking to implement a distributed recycling demonstrator in order to recover 3D printing wastes from secondary schools in the northeast of France. Following this step, a sensitivity analysis was carried out considering the market variations (price of virgin plastic filament) and the amount of available plastic waste derived from the schools. The results obtained show positive economic and environmental benefits of carrying out this new method of plastic recycling. This work serves as a basis for continuing to explore the feasibility and replication of the distributed plastic recycling network in other contexts.
Advancement in valorization technologies to improve utilization of bio-based waste in bioeconomy context

The world today is not only facing the problem of depleting energy sources but also generation of waste from anthropogenic activities. While waste is a risk, it is also an opportunity to solve this dual problem through utilization of waste as a potential source of energy and products. In order to reconcile the management of waste to the scale of its production, several researches are being pursued. Establishment of bioeconomy is a great way to achieve this goal. But inherent challenges associated with biowaste include manageability of by-products and sludge, wide variety in waste composition, efficiency of the process and economic viability of treatment technologies to scale-up and industrialize beyond laboratory setup. Recent advancements have been made in this regard with the use of new techniques, synergistic catalysts, combination of technologies and novel treatment materials to remediate the challenges and maximize the value of waste by utilizing it as a feedstock to produce industrial chemicals, fuels and materials. This review provides an insight into these developments, along with the critical discussion, limitations and economic feasibility of waste valorization technologies to provide new understanding for the advancement of bioeconomy.
Knockdown of zinc finger protein 267 suppresses diffuse large B-cell lymphoma progression, metastasis, and cancer stem cell properties

Zinc finger protein 267 (ZNF267) is a member of the Kruppel-like transcription factor family, which regulates various biological processes such as cell proliferation and differentiation. However, the biological significance of ZNF267 and its potential role in diffuse large B-cell lymphoma (DLBCL) remain to be documented. Experiments were herein conducted to study the role of ZNF267 in DLBCL. real-time quantitative reverse transcription PCR and Western blotting assays were conducted to detect the expression of ZNF267 in tissues and cells. Tissue microarray and bioinformatics analyses of public data were also done to detect the expression status and clinical significance of ZNF267. Functional cell experiments including CCK8 assay, colony formation assay, 5-ethynyl-2'-deoxyuridine (EDU) assay, terminal deoxynucleotidyl transferase biotin-dUTP nick end labeling (TUNEL) assay, transwell assay, and wound healing assay were conducted to study the effects of ZNF267 knockdown and overexpression on cell proliferation and mobility. Xenograft assay was also conducted to confirm the effects of ZNF267 knockdown in vivo. In the present study, we found ZNF267 was significantly upregulated in DLBCL and predicted a poor survival outcome based on the bioinformatics analysis. Functionally, the knockdown of ZNF267 resulted in less cell proliferation and mobility, whereas the overexpression led to enhanced cell proliferation and mobility. Animal experiments also confirmed that ZNF267 silence contributed to less tumor growth and less lung metastasis. Further analysis showed that ZFN267 knockdown resulted in decreased epithelial-mesenchymal transition (EMT) and cancer stem cell (CSC) properties. Our results suggest that ZNF267 is an oncogene in DLBCL and its silence could compromise the aggression of DLBCL, which makes ZNF267 a promising therapeutic target.
Influencing Factors of Chinese Consumers' Purchase Intention to Sustainable Apparel Products: Exploring Consumer "Attitude-Behavioral Intention" Gap

As the rapid economic growth and over-consumption within the largest population worldwide has resulted in harmful environment deterioration, a shift to more sustainable consumption behaviors is required in China. Although public interests in sustainability have increased and consumers' attitudes are positive, their behavioral intentions are not consistent with attitudes. This study aims to uncover psychological drivers and barriers (consumption values, social norms, and attitudes to sustainable apparel products) of Chinese consumers' behavioral intentions toward sustainable apparel products (SAP) by exploring the attitude-behavioral intention gap. Online survey data were used to examine the moderating impacts of consumption values and social norms on relationship between Chinese consumers' attitudes and behavioral intentions toward SAP. Results from moderating regression analysis suggest that (1) Chinese consumers' SAP attitudes had a strong positive effect on the purchase intention toward SAP, (2) aesthetic values positively moderated the relationship between the SAP attitude and purchase intention, whereas conspicuous values negatively moderated the relationship, and (3) utility values and social norms did not show any significant moderating influences on the relationship between the SAP attitude and purchase intention. Our study validates the attitude-behavior gap model in sustainable consumer behavior and discusses how the current findings can assist researchers and practitioners in the Clothing and Textiles field alike to fine-tune sustainable programs and marketing strategies in China.
Cardiovascular manifestations of hypermobile Ehlers-Danlos syndrome and hypermobility spectrum disorders

Introduction: Mitral valve prolapse and aortic root dilatation are reported in association with hypermobile Ehlers-Danlos syndrome (hEDS), but the full phenotypic spectrum of cardiovascular complications in this condition has not been studied in the aftermath of updated nosology and diagnostic criteria. Methods: We performed a retrospective review of 258 patients (> 94% adults) referred to a multidisciplinary clinic for evaluation of joint hypermobility between January 2017 and December 2020 and diagnosed with hEDS or a hypermobility spectrum disorder (HSD) to determine the incidence and spectrum of cardiovascular involvement. Results: Mitral valve prolapse was present in 7.5% and thoracic aortic dilatation in 15.2%. Aortic dilatation was more frequent in individuals with hEDS (20.7%) than with HSD (7.7%) and similarly prevalent between males and females, although was mild in > 90% of females and moderate-to-severe in 50% of males. Five individuals (1.9%) with hEDS/HSD had extra-aortic arterial involvement, including cervical artery dissection (CeAD, n = 2), spontaneous coronary artery dissection (SCAD, n = 2), and SCAD plus celiac artery pseudoaneurysm (n = 1). This is the first series to report the prevalence of CeAD and SCAD in hEDS/HSD. Conclusions: Cardiovascular manifestations in adults with hEDS/HSD, especially females, are typically mild and readily assessed by echocardiography. Since the risk of progression has not yet been defined, adults with hEDS/HSD who are found to have aortic dilatation at baseline should continue ongoing surveillance to monitor for progressive dilatation. Cardiovascular medicine specialists, neurologists, and neurosurgeons should consider hEDS/HSD on the differential for patients with CeAD or SCAD who also have joint hypermobility.
The potential of straw mulch as a nature-based solution for soil erosion in olive plantation treated with glyphosate: A biophysical and socioeconomic assessment

Fifty paired plots under simulated rainfall showed that the use of a cover of straw mulch of 50% (1 mg ha(-1)) in olive orchards results in a reduction of soil erosion. An economic survey based on interviews shows that the use of straw mulch in olive plantation would cost euro174.7 ha(-1), from which euro54.7 ha(-1)is needed for the application work, euro52.3 ha(-1)for the purchase cost, and euro67.7 ha(-1)for the transport of 20-kg bales. The cost of the straw is 22.5% of the total income of the farmers. We found that their perception was negative about the use of straw mulch, as the tradition is to keep the soil clean from any weed or cover, except the crop. However, farmers would use it if they would be subsidized with a minimum of euro267 ha(-1), which is euro92 ha(-1)more than the costs estimated on the basis of the surveys. We conclude that soil erosion can be controlled with the use of straw mulch but that to convince farmers to adopt this management strategy, it needs to be subsidized.
In vivo evaluation of the toxic activity and genotoxicity of the Hymenaea courbaril L.'s resin in Drosophila melanogaster

Due to the negative consequences carried by the usage of synthetic insecticides, a global interest into finding substitutes for these chemical compounds through natural products has arisen. When yielded to external attacks, plants generally produce metabolites to defend themselves. The physicochemical characteristics of this kind of compounds have allowed their usage as potential bioinsecticides. The Hymenaea courbaril L. (algarrobo) has proven to be a plant rich in metabolites with outstanding biological activity, in such a way that some of its extracts have been tested as insecticides. The goal of this study was to know the phytochemical composition of Hymenaea courbaril L.'s resin and perform evaluations in vivo of its toxic and genotoxic effects in the biological model Drosophila melanogaster. For this, two resin extracts were prepared and both a phytochemical analysis were carried out on them, having found in the ethanolic total extract the presence of terpenes, flavonoids and coumarins, while in the partial ethanolic extract only presence of terpenes and flavonoids was found. Drosophila larvae were submitted to different concentrations of the extracts and both the survival and the sexual ratio were evaluated, finding that larvae are more sensitive to the partial ethanolic extract. Subsequently, the induction of somatic mutation and mitotic recombination (SMART) was evaluated in the flies' eyes. The most significant affectations at a genotoxic level were found when larvae were tested with the partial extract, indicating that possibly the coumarins absence makes this insect more susceptible to damages at a genetic material level.
Comparing coal phase-out pathways: The United Kingdom's and Germany's diverging transitions

Political decisions and trends regarding coal use for electricity generation developed differently in the UK and Germany, despite being subject to relatively similar climate protection targets and general political and economic conditions. The UK agreed on a coal phase-out by 2024. In Germany, a law schedules a coal phase-out by 2038 at the latest. This paper investigates reasons for the different developments and aims to identify main hurdles and drivers of coal phase-outs by using the Triple Embeddedness Framework. The comparative case study approach reveals that policy outcomes regarding coal consumption are deeply influenced by several actor groups, namely, coal companies, unions, environmental NGOs, and the government. The most discussed aspects of a coal phase-out in both countries are energy security concerns, whether coal is mined domestically, (regional) economic dependence, as well as the relative power of actors with vested interests in coal consumption.
Fine particulate matter pollution characteristics and source apportionment of Changchun atmosphere

In order to study the pollution characteristics and main sources of fine particulate matter in the atmosphere of the city of Changchun, PM2.5 samples were collected during the four seasons in 2014, and representative months for each season are January, April, July, and October. Sample collection was carried out on 10 auto-monitoring stations in Changchun, and PM2.5 mass concentration and its chemical components (including inorganic elements, organic carbon, elemental carbon, and water-soluble ions) were measured. The results show that the annual average mass concentration of PM2.5 in Changchun in 2014 was about 66.77 μg/m3. Organic matter was the highest component in PM2.5, followed by secondary inorganic ions (SNA), mineral dust (MIN), elemental carbon (EC), and trace elements (TE). Positive matrix factorization (PMF) results gave seven factors, namely, industrial, biomass and coal burning, industrial and soil dust, motor vehicle, soil and secondary ion, light industrial, and hybrid automotive and industrial sources in PM2.5, with contributing values of 18.9%, 24.2%, 5.7%, 23.0%, 11.5%, 13.0%, and 3.6%, respectively.