Polychlorinated biphenyls and organochlorine pesticides in black mussel and goby from Black Sea, Bulgaria

Concentrations of persistent organic pollutants including polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) were measured in two marine species: black mussel (Mytilus galloprovincialis) and goby (Neogobius cephalarges). Samples were collected from Lake Varna and Varna Bay in the period of 2004 - 2005 in order to evaluate the status, spatial distribution and potential sources of pollution in these areas. The mussel, one of the most widely used bioindicators of persistent organic pollutants, has been used to monitor PCBs and DDTs contamination trends in Lake Varna and Varna Bay. Black sea gobies are non-migratory species and feed mainly with benthic organisms. Average PCB concentration in mussels were found 28.7 ng/g fat. Total PCB concentrations in goby varied in the range of 21.3 and 71.5 ng/g fat. Concentration in black mussel were found 28.7 ng/g fat for total DDTs. Average DDTs concentration in goby were measured 2116 ng/g fat. The levels of PCBs and DDTs in black mussels and goby from the Lake Varna and Varna Bay were comparable with those found in other marine ecosystems

THE INFLUENCE OF PRELIMINARY RESERPINIZATION ON THE CHANGES OF BLOOD CELLS' NUMBER AFTER APPLICATION OF ULTRASOUND IN RATS. I. Investigation on the erythrocyte number changes

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Deformations of the Boson sp(4,R)sp(4,R) Representation and its Subalgebras

The boson representation of the sp(4,R) algebra and two distinct deformations of it, are considered, as well as the compact and noncompact subalgebras of each. The initial as well as the deformed representations act in the same Fock space. One of the deformed representation is based on the standard q-deformation of the boson creation and annihilation operators. The subalgebras of sp(4,R) (compact u(2) and three representations of the noncompact u(1,1) are also deformed and are contained in this deformed algebra. They are reducible in the action spaces of sp(4,R) and decompose into irreducible representations. The other deformed representation, is realized by means of a transformation of the q-deformed bosons into q-tensors (spinor-like) with respect to the standard deformed su(2). All of its generators are deformed and have expressions in terms of tensor products of spinor-like operators. In this case, an other deformation of su(2) appears in a natural way as a subalgebra and can be interpreted as a deformation of the angular momentum algebra so(3). Its representation is reducible and decomposes into irreducible ones that yields a complete description of the same

EFFECT OF RESERPINE ON ERYTHROPOIETIN CONSUMPTION IN WHITE RATS

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Bulgarian hospital reform and the new public management model. A change of role of state or a change of mind?

Nothing is simple in planning, financing, and delivering health care. Whatever changes in the system, it has both anticipated and unexpected consequences, which may be positive or negative. This makes reforming health care extremely challenging. Reforming the hospitals in Bulgaria is a difficult task, especially combined with the difficult transition process in all countries of Eastern Europe and the tendencies like growing costs of care, ageing of the population, higher levels of chronic disease and disability, increased availability of new treatments, rising public expectations, increased pressure to spend more on health care and use the available resources more efficiently. The present work uses the example of hospital change process started in newly accepted in EU European countries, particularly in Bulgaria, and proposes discussion about the potential of the New Public Management model as a mean of improvement the capacity of state to adopt the contractual approach of regulation. In conclusion, we stress that if the control by state was not the best solution, market regulation have also some limits so there could be a third way - the supervised competition a possible cure for the success of hospitals and health care reform in Bulgaria.Scripta Scientifica Medica 2013; 45(4): 20-30

INTERACTIONS AND RELATIONSHIPS OF MEDICAL LABORATORY ASSISTANTS IN TEAMWORK AT UNIVERSITY HOSPITAL „ST. MARINA – VARNA“

The relationship of medical staff raise many important issues in medical practice, which must include not only professional competence but also the implementation of effective professional communication, observation and interaction. Good professional communication in medical practice is achieved through the strict observance of the established rules of medical ethics. Compliance with both the universal and the specific rules for medical professionals to communicate. Creating an atmosphere of trust, support and empathy in the process of working with medical staff from different departments in the hospital environment. The article is an analysis of opinion on the interaction between technicians, nurses and doctors in a hospital environment. The study was conducted among 66 respondents in the University Hospital „St. Marina – Varna“The relationship of medical staff raise many important issues in medical practice, which must include not only professional competence but also the implementation of effective professional communication, observation and interaction. Good professional communication in medical practice is achieved through the strict observance of the established rules of medical ethics. Compliance with both the universal and the specific rules for medical professionals to communicate. Creating an atmosphere of trust, support and empathy in the process of working with medical staff from different departments in the hospital environment. The article is an analysis of opinion on the interaction between technicians, nurses and doctors in a hospital environment. The study was conducted among 66 respondents in the University Hospital „St. Marina – Varna