82129 research outputs found
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The role of cellular reducing agents in the protection of zinc finger proteins against toxic metal ions : [abstract]
Get PDFA new approach in obtaining luminescent ordered hybrid systems using metallomesogens and carbon-based materials : [abstract]
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Catalytic/photocatalytic activity of melamine-modified biochar for trimethoprim degradation : [abstract]
Get PDFChanging approach to corporate social responsibility
Get PDFThe responses to environmental and social problems have shown a significant development in recent decades. Achieving sustainability is a challenging goal. The initiatives under the concept of corporate social responsibility represent voluntary contributions. Ultimately, individuals stand behind the solutions and they are the beneficiaries of the results. Understanding their approach to the values and actions is essential. The study presents a survey among higher education students between 2018 and 2024. The results suggest a decline in confidence in corporate social responsibility, which strengthens the need for appropriate education
Determination of toxicologically significant impurities in the technical substance prothioconazole
Get PDFIn order to fulfill its potential, a plant protection product must be of satisfactory quality, which, among other things, implies that the active substance has the appropriate characteristics. In the synthesis of the active substance, a technical product is created. Besides the active substance, it could contain various impurities formed during the production process. The quality of technical substance is of great importance since it can contain contaminants that can harm human and animal health. Therefore, it is necessary, before using the technical substance, to determine the content of impurities of toxicological significance. The determination is carried out using appropriate qualitative and quantitative analytical methods. This study aimed to determine prothioconazole-desthio and toluene, impurities of toxicological significance in the technical material of the fungicide prothioconazole, widely applied to protect field crops from various phytopathogenic fungi. To determine the prothioconazole-desthio impurity in the prothioconazole technical substance, the high-performance liquid chromatography (HPLC) method was validated, while the gas chromatography (GC) method was assessed for the determination of toluene. Validation parameters such as linearity of the detector response, precision and accuracy of the method, limit of detection and limit of quantification were tested. The obtained results showed that all tested parameters fully met the requirements, thus confirming the methods’ reliability for the determination of impurities prothioconazole-desthio and toluene in technical substance prothioconazole
Uncovering ganglioside biomarkers in human epilepsy by ion mobility MS/MS
Get PDFIn the present study we introduced ion mobility separation mass spectrometry (IMS MS) for a comprehensive analysis of the changes in ganglioside pattern in human adult hippocampus affected by temporal lobe epilepsy (TLE) vs. normal hippocampus and discovery of diseaseassociated species
The influence of climatic conditions on Amaranthus retroflexus L. and Chenopodium album L. plants
Get PDFThe purpose of this research is to investigate how the climatic conditions influence the water content of the species Amaranthus retroflexus and Chenopodium album. The two species are noxious weeds spread all over the world and which grow rapidly especially in abandoned construction areas, people's gardens but also on agricultural lands among cultivated plants. Plant materials were collected from a single location during three different months of 2025. Humidity was determined by gravimetric method and the values obtained were correlated with the meteorological factors specific to each month. The determinations obtained highlighted the fact that there are considerable differences in humidity between plant parts and between months, indicating a direct link between temperature, precipitation and humidity. The results demonstrate the importance of climatic conditions in the adaptive capacity and the possibility of spreading of these invasive species
Studies on reducing environmental pollution produced by agricultural tractors
Get PDFThe purpose of studies on reducing pollution produced by agricultural tractors is to identify, analyze and develop solutions to minimize the negative impact that these machines have on the environment. The main objectives of such studies include: identifying pollution sources; developing cleaner technologies; optimizing agricultural practices; complying with European standards; analyzing the economic impact. Energy consumption is a major source of air pollution, contributing to over 90% of sulphur dioxide emissions in the EU. Pollution from internal combustion engines in tractors takes two forms: chemical pollution and dust pollution. Chemical pollution, in turn, is carried out through pollutant emissions, soil pollution and toxicity. Along with the evolution of technology, pollution regulations have also evolved, becoming increasingly restrictive. Reducing emissions produced by internal combustion engines in vehicles is the most important goal of manufacturers at the moment. The increase in the number of vehicles has led to the need to improve the environmental performance of the engines that equip them, in order not to increase air pollution substantially
The characterization and valuation of the potential of the agricultural land fund in the municipality of Săcălaz, Timiș County
Get PDFThe pedological and credit assessment study carried out on the territory of Săcălaz commune (Timiș county) aims at the scientific basis of effective measures for the use and conservation of the functional agricultural fund. The analysis highlighted the diversity of soil types (chernozoms, eutricambosols, faeozoms, alluviosols, vertosols, solonets, etc.), with different degrees of fertility, productive potential and limitations. The results show that more than 60% of the agricultural area is occupied by soils with high fertility (chernozims and eutricambosols), capable of supporting large agricultural productions, while problematic solutions (pelosols, solonets, gleosols) require ameliorative measures. Dewatering-drainage works, combating salinization, adapted technologies and rational crop rotations are recommended for the sustainable exploitation of pedological resources