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The objective of this study is to investigate the contribution of light energy in the electrochemical oxidation treatment of a solution containing a model molecule, Acid Blue 9 dye (AB 9) using a low-cost electrode elaborated by electrodeposition from a lead salt. The elaboration procedure and the characteristics of the obtained Ti/b−PbO electrode are given in the supplementary information. First, electrolysis and I-E curves were performed in order to determine the best conditions for dye removal and mineralization. Then the effect of illumination is studied.

The actual human ecosystems are producing a high quantity of plastic waste that represents a tough problem to be solved. Thus the need of operating and living by the circular green economy using food and agro-forestry by-products, such as nano-sized chitin and lignin, to make innovative biodegradable products and packagings at zero waste. These natural polymers may be used, for example, to make smart tissues which, copying the Extra Cellular Matrix (ECM)' structure, result effective and safe, for medical and cosmetic use, also because packaged into biodegradable containers. This new way to produce and consume will be useful to stop plastic waste and pollution invading land and oceans, safe guarding the natural raw materials and the Earth' biodiversity for the incoming generations.

Binge Eating Disorder (BED) is a frequent occurrence in obese patients [1-3] but also in the general population (3.5% in women and 2.0% in men [4]. Surveys via self-questionnaires in patients scheduled for bariatric surgery showed that BED occurred in 2% to 49% of the patients while subclinical binge eating behavior occurred in 6% to 64% of the patients [5].

The problems related to the environmental pollution caused by anthropogenic activity are particularly significant worldwide. The aim of the study is the quality of the atmospheric air in the region of Stara Zagora, Kazanluk Municipality and Galabovo Municipality and the morbidity of the population. The data are provided by RHI (Regional Health Inspectorate), RHIF (Regional Health Insurance Fund) and MI (Medical Institutions) Stara Zagora for a two-year period 2017-2018. Documentary, statistical and sociological methods are applied. For the period 2017-2018, in Stara Zagora, Ruzhena and Galabovo are reported excessive concentrations of PM10 (fine dust particles). There is an increase in the number of respiratory diseases with the highest relative share of acute bronchitis and pneumonia, especially in children. In order to reduce atmospheric air pollution and the health consequences for the population, it is necessary to carry out architectural and technological measures in the harmful productions of enterprises by installing modern purification facilities. Infrastructural measures such as improving the road surface and using ring roads are also needed.

In modern medicine and biotechnology, metal frames and mineral carriers modified with polymer coatings are widely used. In most cases, during polymerization, hydrolytically stable bonds between the polymer and the carrier are not formed on the surface, and the modifying layer is retained on the surface due to adsorption forces or geometric factors.

The development of global industrial production, increasing the intensity of labor in order to increase the volume of production of goods and services, the production of food products and meeting the needs of society have become prerequisites for global warming and an increase in carbon emissions into the atmosphere.

Despite considerable improvements in terms of prevention, management, and regulation, air pollution remains a major public health issue worldwide. In 2019, the World Health Organization (WHO) estimated that about 99% of people breathe polluted air and/or live in places where air quality levels exceed the WHO recommended limits [1].

In 2014, the French National Agency for Food, Environmental and Occupational Health Safety (Agence nationale de sécurité sanitaire de l'alimentation de l'environnement et du travail) in its annual report wrote: "Nanomaterials can be absorbed by the body and migrate to other organs, leading to a potential systemic risk.

The aim of the present study was to examine the moderating role of self-esteem in the relationship between psychological well-being and loneliness among university international students. The sample (n = 129) was drawn conveniently from university international students. The age range of the sample was 18 to 40 years. The Psychological Well-being scale by Ryff CD [1] Rosenberg self-esteem [2] and UCLA loneliness scale was used to measure psychological well-being, self-esteem and loneliness respectively. Pearson correlation analysis was used to find the relationship among study variables. Hierarchical regression showed that self-esteem did not moderate the relationship between loneliness and psychological well-being. Independent sample t-test revealed that Female international students significantly have a higher level of loneliness than males.

Background: Post-stroke hemiplegic gait is a mixture of deviations and compensatory motion dictated by residual function. To improve stroke survivors' walking ability, it is necessary to evaluate different rehabilitation approaches and identify those that have a greater effect on locomotor recovery of stroke patient. This will improve their general wellbeing by promoting better health and greater community participation, for faster societal integration. Aim: This study compared the effect of open-chain kinematics (bicycle ergometry) and closed-chain kinematics (treadmill) on walking proficiency in post-stroke individuals and their societal integration. Methods: This was a pretest-posttest experimental study involving 35 ambulatory hemiplegic stroke survivors (18 males and 17 females) with a mean age of (53.77 ± 10.95) undergoing rehabilitation at Lagos University Teaching Hospital, Idi Araba and Lagos State University Teaching Hospital, Ikeja. Patients went through 10-week rehabilitation and were randomly assigned to two intervention groups (treadmill and bicycle ergometry groups). Spatio-temporal gait parameters were measured by the six-metre walkway and community integrated questionnaire was used to examine home integration, social integration and productive activities. Data were subjected to inferential and descriptive statistics. Paired t-test was used to analyse the outcomes within the two groups and independent t-test was used to analyse the data between the groups. The level of significance was set at p ≤ 0.05. Results: Results showed significant difference between baseline and post intervention scores for all the gait parameters; stride length (p = 0.001), step length (p = 0.00), natural gait speed (p = 0.00), maximum gait speed (p = 0.01), cadence (p = 0.00) and community integration (p = 0.00) for the participants in the treadmill group; step length (p = 0.001), natural gait speed (p = 0.01), maximum gait (p = 0.02), cadence (p = 0.03) and community integration (p = 0.00) for the participants in the bicycle ergometer group except for stride length which showed no significance difference (p = 0.078). There was also a significant difference in the mean change in cadence between the treadmill and bicycle ergometer group (p = 0.04). Conclusion: Both open-chain and closed-chain kinematics are effective, but closed- chain is most effective in re-educating ambulation and re-gaining spatio-temporal gait parameters after stroke and should be structured into the patients’ treatment regimen to effectively improve functional capability in post-stroke individuals.