Keynote speakers

Professor Venelin Terziev is a DSc (Economics) in scientific major „Finance, monetary circulation, credit and insurance“ (Social security), awarded to him by Dimitar Apostolov Tsenov Academy of Economics, DSc (National security) in scientific major „Organization and management outside the sphere of material production” (Defence and national security), awarded to him by Vasil Levski National Military University, city of Veliko Tarnovo, Republic of Bulgaria, DSc (Social activities), awarded to him by Burgas Free University, Bourgas, Republic of Bulgaria, Doctor of Political Economy, awarded to him by Varna Free University, Varna, Republic of Bulgaria, Professor at Angel Kanchev University of Rousse and Professor at Vasil Levski Military University in the city of Veliko Tarnovo.
He has been an actual member of the Russian Academy of Natural History, Moscow, Russian Federation, since 2018.
Prof. Venelin Terziev’s research work is connected with conducting scientific and scientifically applied developments in the field of labour market development, educational technologies, active social policies, social programming, social adaptation etc, covered in publications which are sufficient in volume and quality.
The following thematic areas with scientific results that have contributed to the development of educational technologies and the social sciences, can be defined:
1. Social adaptation of military men discharged from military service;
2. Sustainable development, ecology and its economic aspects;
3. Employment and labour market;
4. Project management;
5. Social and educational activities.
The developed specific system of criteria and indicators for assessing the social process, and in particular the educational process for adults, and especially people from vulnerable groups, can be highlighted as the most significant contribution. His developments are the basis of various programmes, projects, curricula, and study disciplines, masters courses, as well as used in various scientific developments by scientists from different countries.
The specific social technology and toolkit used in Venelin Terziev’s developments distinguishes him as one of the leading researchers in the world.
His persuasive skills as an excellent teacher and lecturer are the reason for his dozens of invitations to be part of the organizational and scientific committees of various international forums, as well as to be a major plenary speaker. He delivers specialized lectures at the Lomonosov Moscow State University, the Far Eastern Federal University in Vladivostok (as he is a main plenary speaker for a second year, and the forum is part of the World Economic Forum taking place there), the Serbian Academy of Sciences, University of Belgrade, Kemerovo State University, University of Pecs, University of Bourgas, and many others.

Workplace:
Technical University of Sofia
Mechanical Engineering Faculty
Department of Precision Engineering and Measuring Devices

The main directions of scientific activity:
• Metrology and metrology assurance;
• Measurement and control of geometric parameters;
• Quality assurance of measurement and control - accuracy (uncertainty) of measurement and reliability of control;
• Quality Control;
• Qualimetry.

Main Achievements:
• Invention and justification of the effect of aerostatic equidistant self-orientation;
• Development of the method for measurement of geometrival parameters of large-size part using virtual datum;
• Over one hundred publications in the field of geometric measurements and estimation of their accuracy;
• Author of 8 books and manuals (main editions: "Instruments for measuring linear and angular dimensions", "Uncertainty of measurement results", "Quality management", "Metrology and measuring devices - three volumes under the general edition of Prof. Radev");
• Obtaining of 29 author's certificates for methods and measuring instruments (12 of them are implemented in production) and 3 patents abroad: Hole accuracy checking (Patent N 3.858.327, USA; Patent N 2.136.381, France; Patent N 1392504, England), Apparatus for measuring non cylindricity of surfaces (Patent N 412146, USA), Apparatus for measuring non cylindricity and method of setting the apparatus (Patent N 4016747, USA; Patent N 2304894, France; Patent N 1544967, England);
• Head of more than 17 research projects (two in European programs) in the field of geometric measurements.

Public scientific activity:
• Member of the program and organizational committees of 12 international conferences;
• Member of the General Council of the International Measurement Confederation IMEKO from 2005 to 2013;
• Foreign member (Academician) of the Russian Metrology Academy;
• Foreign member (Academician) of the Ukrainian Engineering Academy;
• Foreign member (Academician) of the Academy of Metrology of Ukraine;
• Chairman of the Bulgarian Academical Association of Metrology;
• Chairman of the Bulgarian division of the International Professors Association;

Professor Tsatsakis was born in June 1957 and is a Greek toxicologist. He was the first to notice the extraordinary power of combined effects at low doses in long-term of exposures in our everyday life and to set up an ambitious project which intends to provide multi-answers related to current concerns about mixtures of chemicals from many different sources at doses around or well below the regulatory limits. His hypothesis of an increase cumulative risk from simultaneous exposure of chemicals around considered safe levels could be the starting point for passing from single-compound risk assessment to the era of cumulative risk assessment.
Aristides Tsatsakis is the Director of the Department of Toxicology and Forensic Sciences of the Medical School at the University of Crete and the University Hospital of Heraklion and also the Chairman of the Division of Morphology of the Medical School of the University of Crete in Greece.
He is teaching the toxicology course for medical students and specialized toxicology topics for postgraduate programs in few universities for 30 years. He also supervised over 30 PhDs.
Aristides Tsatsakis is Emeritus Professor for the Erisman Russian Federal Institute of Hygiene and Toxicology in Moscow (2014), Doctor Honoris Causa of the Mendeleev Moscow University in Russia (2016), Doctor Honoris Causa of the Far East Federal University, FEFU, in Vladivostok (2017) and Doctor Honoris Causa of the Carol Davila, in Bucharest (2017).
In 2016 was elected Foreign Member of the National Academy of Sciences of Russia.
Aristides Tsatsakis has written over 1000 publications (books and abstracts proceedings), 400 of them peer reviewed in prestigious journals. He is holder of several patents and has an extensive array of over 7000 citations and 40000 reads /downloads to his papers as shown in scientific data bases.
Dr Tsatsakis has given numerous lectures as keynote and has been plenary speaker in international congresses continuously for the last 20 years.
Aristides Tsatsakis has coordinated as principal investigator over 40 scientific research and technology national, EU and international projects and established worldwide collaborations.
Dr Tsatsakis is Editor of Food Chemical Toxicology (FCT, Elsevier), Editor in Chief of Toxicology Reports, Guest Editor of four special issues in Toxicology Letters (2), Toxicology and FCT journals, Guest editor of the RIFM-FCT issue, Associate Editor, member of the Editorial Boards in several other ISI indexed journals and the EiC of the TOFSJ.
Aristides Tsatsakis was elected EUROTOX Vice President in 2012 and was the President (2014-2016) of the Federation of European Toxicologists and European Societies of Toxicology (EUROTOX).
Dr Tsatsakis was long standing President (2002-2016) and now Emeritus President of the Hellenic Society of Toxicology. He is the Chairman of the Hellenic ERT-HST national Registry and member of several Scientific Academies and Societies. Aristides Tsatsakis has cooperated with key national and international organizations such as WHO-IPCS and National Drug Authority and he has received the Inter Res Prom Council, IRPC 200, Eminent scientist Gold Award. He received in 2017 Award from the Greek Ministry of Agriculture for his contribution in European Toxicology.
Aristides Tsatsakis has organized as president several international Congresses in the field of toxicology and forensic science, like the EUROTOX 2008 in Rhodes, Greece.
Dr Tsatsakis is also the president of the international BIONANOTOX conferences (2009 to 2017).
Aristides Tsatsakis is the inspiratory, founder and current president of the high-tech knowledge and research University of Crete spin-off Company ToxPlus S.A.
His main believe is that the science of toxicology is a basic necessity for living and well-being and should be strengthened as an academic discipline as it represents the necessity in protecting the health of consumers, workers, people and the environment.
When acting as President of the Federation of European Toxicologists and European Societies of Toxicology (EUROTOX) took major steps for the advancement of the harmonization process and for the registration of toxicologists in Europe and worldwide in specialization issues. In his opening speech during 2016 Eurotox congress he stated that toxicology provides the basics for human health and the environment for well living and being.
The main research interests of Professor Tsatsakis are biomonitoring of various xenobiotics in a variety of biological samples and linking of chemical chronic exposure at low doses with health problems and diseases, and risk assessments. He developed numerous biomarkers of exposure and of effects for the pesticide toxicology area uncovering the mechanistic understanding of the mode of actions and adverse outcome pathways and clinical effects.
Dr Tsatsakis integrated experimental in vivo and vitro studies with epidemiological evidence especially in the field of pesticide toxicology, epidemiology and hygiene, and work out the data sets for better understanding of the associations that predetermine plausibility and credibility in order to be used efficient for regulatory directives and norms for the protection of the society and the environment in general. He penetrated with his works aspects of concerning a large variety of xenobiotics of resent interest lately concentrated in effects of endocrine disruption, carcinogenicity, reproduction and neurodegenerative disease. His articles are easily assessed in international highly impact journals.
Lately his present ambitious project is about setting a new experimental methodology which intends to provide at one strike multi-answers to multi-questions related to current concerns about mixtures of chemicals from many different sources at doses around or well below the regulatory limits, to which general population is exposed every day.
The experiments already started in different laboratories around world (including Russia, Romania, Iran, Italy, Greece and Korea) and if the hypothesis of an increase cumulative risk from simultaneous exposure of chemicals around ADI/TDI levels is proven, that could be the starting point for passing from single-compound risk assessment to the era of cumulative risk assessment at low-doses realistic exposure.

Kaoru Maruta is a professor and deputy director of Innovative Energy Research Center in Institute of Fluid Science at Tohoku University, Japan. His research interests include new concept combustion technology, microcombustion, combustion in microgravity, and combustion with higher exergy efficiency.
He is on the editorial boards of major combustion journals, a recipient of the Ichimura Award and has 85 journal publications.