Work-life balance of teaching staff at higher education during COVID 19 pandemic

The issue of work-life balance of teaching staff at higher education institutions is becoming more interesting for the researchers due to complexity in responsibilities of teachers which include not only teaching and preparation of lectures, but primarily scientific research and scientific papers writing, as well as various administrative and managerial duties (vice deans, department chiefs, etc.). This topic is getting importance not only in regard to women in higher education teaching positions, but to overall attracting and retaining talent This complex problem has been particularly evident in disaster circumstances such as the COVID-19 virus pandemic. This paper studies attitudes (in the form of interviews) of teaching staff -teaching assistants, lecturers (languages), assistant professors, associate professors and full professors towards the achieved work-life balance during period of working from home during the lockdown imposed in Serbia from March, to May when the most higher education institutions returned to semi-regular ways of operations on the example of the School of Engineering Management from Belgrade, the Republic of Serbia. Even though the sample is small, it can be concluded that all levels of teaching staff have had difficulties in maintaining work-life balance during the work from home, especially the ones with children of school age.

Trotsky as a product of specific time: Strategy, leadership and culturalization

The aim of the paper is to examine Leon Trotsky's reputation as a strategy leader forged during the turbulent years of the Russian Revolution. Having specific leadership, he was a product of specific era, exerted an influence on the key historic and cultural events, and as such, subject of research for more than half a century. Without his excellent strategic skills, the Bolsheviks might never have come to power. Eventually, Stalin defeated Trotsky, who, trapped by his own principles, had few political skills. By 1927 expelled from the Party, by 1929 from Russia itself, Trotsky faded from the Russian scene. Exiled, he found support finally in Mexico, worked there, influenced Cardenas and surrealistic artists, wrote many excellent articles, made enormous contribution to art, but couldn't avoid Stalin repression, ended up murdered. The paper is primarily based on Trotsky's own writings, his bibliographers like: Ernes, Dimitri, Trotskyism theory and surrealistic critiques. By mapping the most significant theories, we tried to present the ideology of that time and its impact on politics and art, same as perception of leadership. The hypothesis of the paper is that Trotsky was indeed a product of specific time and background, but was swept away by events he helped unleash, having a huge impact on various cultural fields, contributed to huge culturalization.

A systematic review of human health risks associated with metalworking fluids exposure

Metalworking fluid (MWF) is the name given to a range of oils, emulsions and other fluid used in metalworking processes to reduce friction, heat, rust, and evacuate swarf. However, most of these fluids are based on finite resource - mineral oil and contain biocides, thus representing an environmental threat at each life cycle stage from resource extraction to disposal. The basic methodological approach of this research was based on the systematic review of relevant academic literature in the field of health issues caused by MWF application. An academic electronic reference source was queried for the related terms while search engine was set to sort the results by relevance. Based on the systematic literature review, this study has identified and noted 31 reports in the peer reviewed literature directly relevant to human health risks associated with MWF exposure effects. The majority of these studies were case series and cross-sectional studies of which 13 addressed malignant diseases; 7 respiratory effects; 6 skin effects or allergies; and 7 pathogenic microbial contaminants. The major studies identified excess malignant diseases including lung, liver, skin, pancreatic, and laryngeal cancer in cohorts exposed to MWF. In addition, a strong association has been established with asthma and hypersensitivity pneumonitis. The research did not categorise the results according to the MWF formulation, nor according to the method of application.

Graph structures for data visualizations

Networks are all around us. Graph structures are established in the core of every network system therefore it is assumed to be understood as graphs as data visualization objects. Those objects grow from abstract mathematical paradigms up to information insights and connection channels. Essential metrics in graphs were calculated such as degree centrality, closeness centrality, betweenness centrality and page rank centrality and in all of them describe communication inside the graph system. The main goal of this research is to look at the methods of visualization over the existing Big data and to present new approaches and solutions for the current state of Big data visualization. This paper provides a classification of existing data types, analytical methods, techniques and visualization tools, with special emphasis on researching the evolution of visualization methodology in recent years. Based on the obtained results, the shortcomings of the existing visualization methods can be noticed.

Medical waste management

Medical waste management is of great importance for people and the environment. Irresponsible management and classification of medical waste can lead to environmental hazards and cause health risks to both employees and patients. Traditional waste disposal on landfills are the most common form of waste disposal in our country, although the authors see the most efficient incineration solution as a more appropriate method or an integrated method of hierarchical management from the generation stage to waste treatment, which brings economic advantage and risk reduction potential damages. In order to live in harmony with the environment, the problem of waste disposal must be recognized as one of the important tasks of all structures involved in its creation and disposal.

Application of green tools in green marketing

Green marketing is a promotion of "green" or environmentally friendly products as a consumer base for the premium product. It implies the whole chain of a product's life cycle, prevention of releasing pollutants into the environment and their removal using phytoremediation as one of many tools. Increasing social care linked health well-being with sustainable environmental and economy. Therefore, increased number of eco-minded entrepreneurs includes green marketing. A strategic goal of corporations is to raise awareness through environmentally minded publication, eco-friendly retail, organic catering/promotion, eco-friendly landscaping, eco-consulting, etc. Thus, green tools, part of green marketing promote and educate about carbon emissions and pollution consumers daily activities produce and the impact those activities have on the final product. In the context of the changes in business, green marketing could be put in the framework of life cycle thinking. Taking into account waste as a final by product even in a lean manufacturing, LCA includes unavoidable pollutants or products as well as the remediation/phytoremediation to decrease harmful product impact.

Crisis management system in European Union: How it works?

The European Union's development path as a supranational organisation in which a single political, economic, and security space on the European continent prevails was not simple and easy. For many years, the European community's ideological creators have been looking for a supranational model that would simultaneously meet the times' challenges and ensure economic prosperity, internal stability, peace, and security in Europe. Such an organisation should have had a role in the international order. In European politics and science, there have been differences of opinion on whether the EU should develop a crisis management system or not. The need for the EU to develop its capabilities in foreign and security policy has influenced the establishment of the crisis management system as we know it today. Thanks to that, the European Union is an important player in world security, especially through military and civilian operations.

Security aspects at airports and the willingness of passengers to travel abroad during a pandemic of the COVID-19 virus

The outbreak of COVID-19 coronavirus and appropriate precautions measures to limit its spread have clear impacts on human mobility globally. This has caused a reduction in the domestic and international volume of air passenger traffic and the readiness of passengers to decide to travel to foreign countries. Due to the global coronavirus crisis, most countries have introduced restrictive measures to limit the pandemic and limit the number of victims. Among the restrictive measures is the suspension of air traffic as an effective measure in reducing mobility at the global level in the short term, which results in a high socio-economic imbalance in both the long and short term. This paper deals with the examination of knowledge and application of precautionary measures at airports, safety and readiness of passengers to travel and their travel experiences.

Emergency management in the Republic of Serbia during the Covid-19

For the first time in the history of humanity, the world encountered a global emergency that showed all the weaknesses of emergency management and the unwillingness of states to respond to that challenge adequately. Although it is evident that the governments in which the state-owned health care system adapted more quickly to the epidemic, it was also apparent that the emergency management was practically on local governments, but also that the states with a clearly defined legal framework and established management systems emergencies are easier to deal with such an emergency. In the Republic of Serbia, there is a legally prescribed procedure for acting in epidemics, which is a sufficient basis for engaging emergency management. The organizational challenges of the epidemic are practically the responsibility of local self-government units, and so far, although the epidemic is still ongoing, according to available data, it seems that they are adequately responding to that challenge. This paper is based on the legal framework analysis for introducing the state of emergency and the practical research of the engagement of local self-governments during the epidemic.

Quantum security and 6G critical infrastructure

In the mid 2030-s in the field of defense and national security communications the quantum computers and 6G artificial intelligence will have domination. 6G communication is accepted in a variety of mobile data comparts transmitted through spectral technologies. The human body becomes a part of the 6G network architecture. A set of network nodes or wearable devices, embedded sensors or nanodes collect confidential information that is exchanged for multiple purposes, such as health, statistics, and safety. An important part of the 6G new paradigm will be intelligent reflective surfaces, quantum teleportation, quantum encrypted messaging, 6G holography, distributed ledger, 6G layer security threats. The 6G wireless standards will allow real-time time zone high-speed internet communication with 1TB data per second. The radio frequency networks, THZ communications, molecular communications, and quantum communications will dramatically improve data rates.