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The study presents the first comprehensive spatio-temporal analysis of eutrophication and the consequent loss of sensitive aquatic habitats in the transitional water bodies along the Kamchiya-Shkorpilovtsi sector of the Bulgarian Black Sea coast. The research focuses on the Maznia Azmak Lake, an old Kamchiya riverbed integral to the Kamchia Nature Reserve and two Natura 2000 protected areas. The primary objective was to assess the scale and rate of eutrophication and its impact on aquatic habitats, employing moder...

The type of protection flameproof enclosure consists in placing the parts that can ignite an explosive atmosphere into an enclosure that can withstand an internal explosion and it prevents the transmission of the explosion effects (hot gases, flames, incandescent particles etc.) capable of ignition to the external explosive atmosphere in which the equipment is placed. The purpose of the paper is to underline some specific situations that can occur during the tests in explosive mixtures needed to verify the charact...

Hydrogen can originate from various geological processes and its ability to migrate to near-surface layers makes soil gas analysis crucial for identifying subsurface accumulations. Current methods using portable analysers are often insufficient for precise determination, highlighting the need for gas chromatography in controlled laboratory settings. Hydrogen's high mobility and chemical reactivity make it difficult to maintain stable soil gas samples from collection to analysis. To address this challenge, an exper...

An ocular melanoma is a type of cancer that originates from the uncontrolled growth of melanocytes. In cats, melanomas are rare, with diffuse iris melanomas being the most common eye tumors. This case report describes an 8-year-old female Persian cat referred to our clinic for evaluation due to a dark spot extending to the cornea, obscuring vision, and unresponsive to prior drug treatments. Diagnosis was confirmed through histopathological examination of a tissue sample. The present case report details a complex k...

According to the Global Sustainable Development Report 2023, achieving many SDGs is becoming increasingly difficult. In conditions of turbulence and ongoing challenges for the society, increasing attention is being paid to ensuring technological sovereignty of regions and countries. Countries with advanced technologies have advantages, among which energy supply technologies occupy a special place. The type and quality of energy sources is of particular importance. The energy complex and its resource supply, as wel...

The problem of sustainable development of territorial communities and the management of their economic processes and tourist resources is important in the modern world, as it requires a balanced approach to ensuring economic growth, preserving the environment and meeting the needs of society. The research is aimed at studying the management strategies of economic processes and tourist resources in territorial communities in order to ensure sustainable development. The aim of the study. The purpose of the study is ...

The sustainable water management is a process based on a brief knowledge about the water resources availability. The water lack or excess in the form of droughts or flooding, and/or improper water use can cause serious disruptions in the water management process with negative effects on the water supply, economy, and the human and ecosystems well-being. To minimize the negative consequences a specialized research is needed. It requires a complex study that allows objectively detecting of critical aspects in the wa...

In Germany, a considerable amount of arable land is used for the cultivation of animal feed, and significant resources are spent on the import and export of feed. These factors generally contribute to the large ecological footprint of meat and dairy production. Particularly peripheral areas of cities such as housing or industrial estates often have considerable, contiguous green spaces. The way they are usually managed inherents potential for improvement in terms of sustainability. One option is to use these green...

Excessive input of nitrogen and phosphorus into water systems causes eutrophication. Efforts to reduce nitrogen and phosphorus losses from agriculture in the Baltic Sea region are crucial. The aim of the study is to assess the impact of nitrogen application rates in the form of mineral fertilizer on concentrations of Ntot, NO3-N, Ptot, and PO4-P (mg L-1) in runoff at the level of experimental fields. This study analyzed data from October 2014 to April 2022 collected from the Mellupite monitoring station, where exp...

The mining industry of Ukraine plays an important role in the industrial sector, as the country has significant resources of natural raw materials, which contributes to the development of mining. However, this industry causes serious environmental and social consequences. The long-term operation of mining enterprises in Ukrainian regions causes serious pollution of the atmosphere, soil and water resources, as well as the destruction of the natural landscape. This leads to the degradation of natural resources and d...

Riparian vegetation of water streams represents dynamic ecosystem, which meets various functions. Since it forms a buffer zone between the aquatic and terrestrial ecosystems, it is of great importance in the ecological stability of landscape. Its importance is even higher nowadays when the effect of human activities on the environment is much stronger than in the past. The structure and quality of the vegetation comprising the riparian zone plays an important role in its ability to provide various ecosystem functi...

The United Nations- Sustainable Development Goals have recently challenged organizations to start consistent transformation in order to foster sustainability in future economy and society. One of the key enablers of this tr-nsformation was the European Union-s Corporate Sustainability Reporting Directive, which amended non-financial reporting with sustainability reporting. As a result, the first global sustainability standards have been developed, which gave the accountancy profession a key role in helping organiz...

We are currently facing various forms of emergencies that affect the quality of life of the inhabitants. Their impacts can have a significant impact on physical, psychological and social health and can negatively affect people's quality of life. Preparedness and training are crucial not only for public authorities, but also for the inhabitants, in order to minimize the consequences of various crisis situations. Quality of life indicators include the quality of housing, which includes the factor of safety. In the c...

Carbon steel is one of the most common alloys employed in a multitude of industries. However, it has low corrosion resistance and some methods were used in order to enhance the anticorrosion properties, such as modifying the composition of the steel by further alloying, deposition of protective layers on the substrate or modifying the aggressive media by adding corrosion inhibitors. This paper presents the results of adding an environmental friendly extract (Citrus x clementine) in the aggressive media on the corr...

Climate change is not the future, it is a hard, tangible and uncompromising present. Globally, the risk of crop reduction is increasing. Production shocks that used to occur once every 100 years or so in the past may occur every 30 years or more in the future. The development of fruit growing, as part of agricultural activities in the countryside, must record the impacts caused by climate change and apply the species structure of fruit trees in the regions of Slovakia, which will fully respect the biological requi...

Climate change is a very serious threat, and its consequences affect many different aspects of our lives. In Slovakia, we will also have to get used to the faster onset of warm and dry weather in the spring. The year, from a temperature point of view, ended as the 2nd warmest since 1931. Statistically very significant (annual) deviations occurred in the entire territory of Slovakia, so we characterize it in terms of temperature as strongly to extremely above normal. We monitored the influence of climatic condition...

The European Union's planning documents for 2040 clearly outline the importance of an environmental economy, which focuses on the economic impact of environmental policies and the sustainable management of natural resources, emphasising the need to integrate ecological principles into economic systems. The planning documents at all levels pay particular attention to the circulation of information, to keeping the public informed about the promotion of green thinking and sustainable development. The media ecosystem,...

Humanity is currently facing a number of global problems, such as global warming, air pollution, water pollution, deforestation, desertification or land degradation, which are apparently connected to the consequences of negative human activity. One of the possible and effective institutional tools for environmental protection is the environmental education of the general population. It is a relatively well-known and used environmental protection policy tool that governments of all developed countries have in their...

The aim of this paper is to assess the impact of spatial, economic and social transformation and their influence on the development of a landscape valorization strategy, in terms of the possibilities for implementing structural changes in the territory of a country, through which structural changes to support the introduction of new technologies and innovations, resulting in a change in the sectoral structure of a country's economy. On the other hand, by assessing the impact of social transformation, an explanatio...

In deltaic environments like the Danube Delta, sedimentary particles can range from clay and silt to sand and gravel. The proximity to the Black Sea introduces marine processes into the deltaic system that can be translated as a mixture of fine-grained sediments derived from the fluvial delta along with marine sediments from the Black Sea. This region is of particular importance for the ecology and hydrology of the Danube Delta due to the presence of sandy deposits that cause a major change in both natural and ant...

Electrical equipment that operates in a potentially explosive atmosphere, have characteristics specially designed for operation in this area. For security reasons, it is essential that the integrity of these special features be preserved in these areas throughout the life of the installation. Using electric equipment in potentially explosive atmospheres brings forward several particularities therefore the problems that appear during the design, construction and operation of electrical devices and installations bri...

The current dramatic pace of biodiversity loss requires immediate and decisive action. The Nature Positive Agenda implies recovery of lost natural ecosystems and gain of new ones that would overcompensate for biodiversity loss. Achievement of such an ambitious agenda is not trivial. It requires mobilization of resources and stakeholders across public and private sectors. Obviously, efforts of protected area establishment are not sufficient as it only implies protection of existing habitats, not gain of new ones. G...

One of the objectives of the research is to identify the factors influencing the implementation of environmental economics and green governance principles in Latvia. The study focuses on the strategic allocation, implementation and impact of investments, including EU structural funds, on environmental sustainability initiatives in Latvia. The research methodology includes theoretical concepts and research on the development of the environmental economics in the regions of Latvia. In order to achieve the objectives...

Search engine optimisation as a separate concept has not been researched extensively compared to other digital marketing tools in Latvia. The aim of this study is to analyse the decision-making process of custumers in the choice of services placed on the internet market for sustainable development. The study is planned to be carried out in five phases, analysing and structuring the offer of companies in different sectors and the choices made by consumers on websites. This article summarises data from the first pha...

In the goal of environmental sustainability, society's essential role in conducting environmental audits emerges as critical. This abstract investigates the multiple significance of society involvement while reading environmental audits. To begin, societal scrutiny serves as a powerful force for accountability, ensuring that stakeholders are held accountable for environmental deterioration. Concurrently, by looking into audit reports, society obtains essential insights into environmental concerns, cultivating a co...

Using data from the Eurostat datasets on employee computer and internet use (ISOC_CI_CM_PN2, measured as a percentage of total employment) and resource productivity (ENV_AC_RP, measured in Euro per kilogram) across the European Union between 2014 and 2022, this paper investigates the potential effects of these technologies on sustainability efforts within companies. Using the economic value produced per kilogram of material used as a proxy for resource utilization efficiency, the study seeks to establish a relatio...

Introduced in Europe for the first time as a medicinal plant (around the 1630) and later as an ornamental, Asclepias syriaca L. has escaped from culture and became subspontaneous. Today, this species raises serious threats of invasion in some European countries, such as Hungary, for example. In this paper, we discuss the spread of the species in the Romanian Banat, especially in the spontaneous vegetation. The first reports in the region are those from the Romanian Flora. We found this species in different habitat...

Pervasive environmental stressors, particularly water deficits, have a major impact on plant production, diverting necessary energy away from growth and development to mitigate stress effects. This study addresses the impact of several water regimes (irrigated and non-irrigated) on royal walnut individuals (Juglans regia L.) in an orchard in western Slovakia. Our analysis focused on sap flow measurements using the stem heat balancing method from July 13 to September 21, 2021. In the midday hours, the sap flow rate...

Construction using 3D printer technology seems to be not just a passing trend and a growing number construction companies are approaching this new construction methodology. Although construction processes with printers are becoming standardized, it is also true that many other aspects must be considered in the design phase. Better this construction methodology becomes known, more architects and engineers will have to learn how to design these constructions, in the methods of statics, systems, etc. A very important...

Renewable energy technologies are becoming increasingly important with the world's growing energy needs and environmental deterioration. In this context, thermoelectric materials capable of converting waste heat directly into electric power are at the forefront of extensive studies. The layered cobaltites have great potential for use in thermoelectric generators due to their environmental friendliness, good thermal and chemical stability, and relatively low cost of raw materials. Improving the thermoelectric prope...

In the present, regional policy faces the demanding task of developing suitable decision-making tools for regional development that will effectively take into account the need to mitigate climate impacts. Blue-green infrastructure (BGI) emerges as one of the most promising tools in this field. BGI represents an integrated approach that harnesses the synergistic effect of natural and civic systems to manage water, regulate climate, and protect biodiversity. This comprehensive approach not only helps reduce the risk...

The relationship of contemporary human beings to the nature is in the centre of the public debate worldwide and in particular countries because of climate change. Different social groups develop different perspectives on the issue based on ideologies, values and lifesyles. They express it through verbal arguments, but also through visual messages that use well known symbols and emotionally louded images in public spaces one of forms usual for supposedly muted groups beeing stencil graffiti. The aim of this researc...

In the area of the city of Piatra-Neamt (North-East of Romania), the activities related to the tourism sector may register malfunctions due to the manifestation of some natural risk phenomena. The touristic potential of the city (recreational, sports, balneary, cultural-historical) represents a central component of the national tourist structure with many exploitation possibilities. Risk situations of tourist activities can be induced by the natural hazards attributes (probability and intensity) and vulnerability ...

Education is an ongoing process that enables individuals and society as a whole to reach their full potential by developing their abilities. It serves as a crucial prerequisite for sustainable development and the formation of public awareness. Environmental education, which begins in early childhood and continues throughout life, plays a vital role in fostering environmental literacy. Thus, assessing the state of environmental education among school-age students is of great importance. Our research aimed to evalua...

Most modern heat pump installations can only generate a maximum temperature of 50-55-C. This temperature potential is not sufficient to integrate them with existing convective and radiator-based space heating systems in severe climates. This paper discusses the findings from an experimental study evaluating the efficiency of a fan coil-based air heating system. Using a peaking boiler fueled by natural gas from the main supply has been shown to be the most cost-effective method for generating thermal energy with pe...

This study addresses the significant challenge of hole cleaning in drilling operations, which is essential for preventing stuck pipe incidents-a major cause of non-productive time and additional costs in drilling. This research aims to develop and validate machine learning models that enhance the prediction and optimization of cuttings removal during drilling. Utilizing a dataset derived from historical drilling operations, we employed regression analysis and neural network models to forecast the presence and heig...

In this paper, the applications of Scanning Electron Microscopy (SEM) in plant histology and anatomy research are highlighted. Traditionally, SEM is used in plant biology to analyze the surfaces of various vegetative and reproductive organs in order to investigate micromorphological aspects. Vegetative and reproductive organs from 12 species of angiosperms from various habitats in Romania were analyzed (Adonis vernalis L., Primula halleri J.F.Gmel., Oxytropis halleri Bunge et. Koch, Oxytropis campestris (L.) DC, P...

The difficult environmental situation in the world is largely a consequence of the huge volume of production and consumption waste and its constant growth. In this regard, the problem of waste placement, neutralization and utilization comes to the fore. One of the most controversial methods that contribute to a significant reduction in the amount of garbage and the production of energy is waste incineration plants. The main argument of opponents of this method of disposal is the assertion about the pollution of th...

Reference genes are essential for normalising data in RT-qPCR experiments and are critical in reducing technical variability. This study aimed to identify and validate stable reference genes for accurate gene expression analysis in porcine oocytes matured in culture media supplemented with antioxidants. Five commonly used reference genes were assessed: PPIA, RPL4, GAPDH, YWHAZ, and TBP, [2, 3] in oocytes cultured under oxidative stress conditions induced by Vitamin C. The experiment involved four experimental grou...

Following the vehicle painting process, residual gases containing volatile organic compounds (VOCs) are released into the atmosphere through exhaust pipes. Entrepreneurs are legally obliged to report to the Environmental Protection Agency, which, in turn, reports to the European Union to reduce greenhouse gas emissions and achieve climate neutrality by 2050. The current paper investigates the temporal variation of VOC concentrations correlated with technological processes carried out in vehicle painting shops. Thr...

The Bolnisi Ore District (Georgia), situated within the Tethyan-Eurasian metallogenic belt, embodies a multifaceted geological milieu marked by the intricate interplay of volcanic and tectonic processes, predominantly delineated by Late Cretaceous volcanic and sedimentary sequences entrenched between the Khrami and Loki Variscan crystalline massifs. Noteworthy for its rich mineral endowment, the Bolnisi Ore District harbors a plethora of ore deposits, with several operational mining sites situated within its bound...

Currently, the most advanced countries in terms of green thinking and production are Scandinavia, Switzerland, the Netherlands, Australia and New Zealand. The Baltic States also have adopted a joint Climate Declaration with a commitment to climate neutrality. The global production and consumption of plastics have doubled over the last two decades, yet only approximately 30% of plastic waste is recycled and reused, while the rest ends up in the environment. We all must play a role in protecting the environment at h...

The effect of pressurized hydrogen on pipeline walls is an important phenomenon that can cause damage to the integrity of the pipeline structure during transport and storage of gases. Hydrogen can penetrate the wall of metallic pipelines (alloy steel or carbon steel) and cause cracking or rupture of the material, which can lead to pressure loss or even serious effects (explosions, fires). The embrittlement of the metal by hydrogen is a phenomenon of degradation of the mechanical properties of the metal, as a resul...

The wealth of the bowels of Kazakhstan has not yet been exhausted, there are promising areas that are currently insufficiently studied, especially at depth. The reason for the insufficient knowledge of geological structures in depth is the lack of a theoretical basis for geological research and justification for the forecast of prospect for minerals. In this regard, geology faces the question of creating a scientific approach for predicting new prospect areas, especially at depth. Our analysis shows that the princ...

A type of protection represents specific measures applied to equipment to avoid ignition of a surrounding explosive atmosphere. Flameproof enclosure -d- consists in placing the parts that could ignite an explosive atmosphere inside of an enclosure that can withstand the pressure developed during an internal explosion of an explosive mixture and which prevents the explosion transmission to the explosive atmosphere surrounding the enclosure. Increased safety -e- represents a type of protection that consists in apply...

The Mediterranean Sea can be taken as a good example of the advantage of people transportation by water, in order to reduce pollution. This is mainly due to historical reasons, in fact the ashore private transportation along coasts of Italy, France, Spain, Slovenia, Croazia etc, has been developed during centuries on the basis of Roman Empire roads, and furtherly with development of railways, offering basically 2 different ways of transport. But recent solutions and studies shows the possibility to give a signific...

A common practice under modern conditions in urban planning is the tendency of urban areas to grow, which is usually at the expense of agricultural areas. This, both in a global aspect and specifically for Bulgaria, is a particularly relevant problem due to the extremely important ecosystem functions of soil resources and the fact that they are an extremely slowly renewable natural resource. The assessment of ecosystems condition and their services is a suitable approach as an additional study on the effects of ch...

With the increasing interest of people to be informed at every step, to progress and overcome their limits, rapid developments have occurred in the field of IoT (Internet of Things) and miniaturized electronics. Thus, wearable power sources with high reliability and long duty cycles are required to power wearable electronic devices to meet people's needs and smart miniaturized electronics requirements. In addition, to make them truly wearable, these must be light, flexible, silent, low power consumption and adapta...

Environmental problems in shipping belong to the most important research topics in the marine sector, where a number of technical and operational measures to improve environmental friendliness of ships can be found in the literature. Most of the fishing vessels are powered by diesel engines and alternative fuels or full electrification of the ship power system as the ultimate game changer are regularly considered in the literature as technical measures that offer both environmental and economic benefits. It is cle...

Sustainability reporting landscape is evolving rapidly due to the expanding legislation worldwide. The new Corporate Sustainability Reporting Directive is challenging European companies to restructure their business models and processes and to enhance their corporate reporting. Considering the increasing number of reporting requirements, this paper aims at providing critical analysis of the current employers- demand on sustainability competences needed for setting up the relevant reporting processes. The empirical...