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Antibiotics are widely used in the therapy of infections. Besides the respective interactions between antibiotics and pathogens it seems that antibiotics also directly interact with the immune system. Some commonly used antibiotics are currently known to have effects on the innate immune response, as shown by in vitro, ex vivo and also in vivo animal experiments and clinical studies. Most of the experimental papers published to date, as well as most reviews, relate to how antibiotics affect the innate immune response or non-specific monocyte or lymphocyte proliferation. However the effects of antibiotics on the adaptive immune response are still not well characterized. This review of the literature considering different in vivo experiments indicate the real importance of interrelations existing between acquired immune responses and antibiotics, however, the mechanism of immunomodulatory effects of antibiotics are still poorly understood. Currently, data on the immunomodulating effects of antibiotics often remain heterogeneous, contradictory or insufficient, but most results published to date revealed the immunosuppressive effect of antibiotics on the antigen- specific immune response in vivo. In pigs as well as in poultry herds, it is not uncommon practice to add antibiotics to drinking water or feed at the time of vaccination. Information on the effects of such practices on the immune system of animals is restricted and more in vivo studies are needed to investigate the effects of antimicrobial drugs on the immune system, especially in the field conditions.
Dentists belong to a professional group potentially exposed to harmful biological factors which most often are infectious microorganisms, less frequently - allergenic or toxic microorganisms. The fundamental routes of spreading harmful microorganisms in a dental surgery are: blood-borne, saliva-droplet, direct contact with a patient and with infected equipment, and water-droplet infections. In this paper, the current status of knowledge on microbiological hazards in a dentist's work is presented. Groups of microorganisms, such as prions, viruses, bacteria, fungi and protozoa, to which a dentist is, or may be exposed, are discussed. Epidemiological assessment of microbiological hazards in a dentist's work was performed and the basic principles of prevention formulated. Special attention was given to microflora in dental unit waterlines, and the biofilm persisting in them, as a source of occupational hazards specific for a dentist's workplace.
Background. Researchers often discuss the subject of physical activity (PA) of the elderly in theoretical terms, showing, for example, the protective mechanisms of PA for the body, beneficial effects for health and aging, as well as the principles of effective health training. According to the WHO and EU, few elderly people are physically active. This study aimed to investigate the level of PA of the surveyed elderly people at the present time, compared to when they were younger. Potential limitations in PA of the respondents and their knowledge about the dangers of hypokinesia were also investigated. Material and methods. This study assessed 217 people, aged 60-85, living in the northern part of the Lublin Province, Poland. It used an original interview questionnaire. Results. Systematic PA performed by respondents earlier in life involved mainly household and backyard activities, professional work, and participation in physical education lessons. The currently most frequent activities were found to be walking (75.6%) and gardening (66.4%). Women much more often than men participated and reported their willingness to be active in organized PA. Various limitations prevented respondents from being physically active. The greatest number of respondents reported disability, physical weakness, kinesiophobia, and multiple diseases (34.6%) as the main barrier, followed by lack of skills to organize physical exercises (27.7%). Concerning threats of hypokinesia, respondents most often indicated obesity, diseases of the musculoskeletal system, and arterial hypertension. Conclusions. The level of PA of the surveyed elderly people, limitations preventing PA, and low level of knowledge about the delayed consequences of hypokinesia suggests a need for seniors’ health education in physioprophylaxis.
Providing the population with safe and good quality food is one of the most important objectives of every country. The outbreak and spread of foodborne diseases is independent of a country’s location or development level, and may occur everywhere. As most children spend their days at educational institutions, we shall focus on their food safety. Not only for their present state of health, but also because childhood nutrition and diet will basically determine their health in their adulthood and thus, influence the future economic and social performance of their society. This paper introduces background information about school catering in Hungary, based upon the results of an overall food safety survey. The results of our research showed that the food safety level of the different kitchen units is mostly determined by the level of food processing activities. The technical and technological level of the school kitchens did not significantly influence the food safety level of the kitchens. According to the results of our survey, improving the knowledge and the attitudes of employees in school kitchens is more important than technical and technological conditions.
The paper deals with species diversity of Scarabaeoidea (Coleoptera) of Guilan Province, Northern Iran. In total 22 species of 17 genera (Adoretus LAPORTE, Aethiessa BURMEISTER, Anomala SAMOUELLE, Aphodius ILLIGER, Blitopertha REITTER, Cetonia FABRICIUS, Glaphyrus LATREILLE, Gymnopleurus ILLIGER, Onthophagus LATREILLE, Oryctes ILLIGER, Oxythyrea MULSANT, Paroniticellus BALTHASAR, Pentodon HOPE, Polyphylla HARRIS, Protaetia BURMEISTER, Scarabaeus LINNAEUS, Valgus SCRIBA) were collected and identified. Protaetia funesta (MEN.) has been recorded from Iran for the first time.
This article investigates factors influencing knowledge of renewable energy types among 200 residents of 13 villages in Lubelskie province using survey data collected in 2013. Survey summary responses indicate that solar and wind energy were best known and biofuels the least known among five energy types considered in the questionnaire. Factors associated with varying degrees of renewable energy sources were identified using the multivariate ordered probit approach. The largest change in probability that a respondent’s self-assessed knowledge level fell into a specific category was associated with being a farmer, viewing the subject matter of the survey as important, having high income, being from a large household and, being married.
The paper presents an analysis and evaluation of Agricultural Knowledge and Information Systems in Europe and the ongoing changes and trends. It is proceeded by a short description of the strategy for the bioeconomy. The analysis uses the results of the author’s own research and review of the literature. Research shows that agricultural knowledge systems are in the process of transition, i.e. from a linear top-down approach towards a more flexible bottom-up approach and interactive solutions in the form of a network. Bioeconomy represents a new challenge in front of all the classic AKIS stakeholders, as well as creates an opportunity for many new NGOs, foundations, centers of excellence, etc. specializing in various aspects of the national management of renewable resources in agriculture.
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