Organ culture, definition

The diversity of products, organizations, culture, and social and political frameworks focusing on a product-specific absolute quantity seemed to make it virtually impossible to achieve a uniform and globally accepted definition of Quality. However, in the 1970s, the term Quality was normed for the first time as a term in the concept of quality management (European Organization for Quality Control 1972). In the 80s the ISO 9000-Standard was established and defined quality based on former definitions like the compliance of requirements to test nominal and actual conditions of a product. After revisions the norm ISO 9000 2000 came up with a definition, which was adopted by the CIRP Dictionary of Production Engineering 2004, that defined quality as the totality of properties and characteristics of an entity that bear on its ability to satisfy stated and implied needs. The present definition set by the ISO 9000 2005 states that quality represents the level in which a set of inherent product characteristics meets the customers demands. This definition includes, but is not limited to, physical products or immaterial services and addresses processes and systems as well (Eig. 1). 

The effects of retinoids on differentiation of epithelia in organ culture undoubtedly result from a combination of complex cellular responses and interactions of different cell types in the explant. These systems therefore have definite limitations for analysis of the molecular mechanism of action of the retinoids. The introduction of cell culture methodology to such studies was therefore of great importance and now is allowing molecular investigation of the role of retinoids in proliferation and differentiation. 

Pubhc sector aquaculture involves production of aquatic animals to augment or estabUsh recreational and commercial fisheries. PubHc sector aquaculture is widely practiced in North America and to a lesser extent in other parts of the world. The FAO definition of aquaculture also indicates that farming implies ownership of the organisms being cultured, which would seem to exclude pubhc sector aquaculture. 

Abstract. Recent experimental results in culture and in vivo are summarized that show the existence of developmental relationships between cells that build up blood vessel walls and some previously unrelated tissues and organs. It was formerly demonstrated, in lower vertebrates as well as mammals, including humans, that discrete subsets of blood-forming endothelial cells play a key role in the emergence of the definitive hematopoietic system. We have also documented the existence in human skeletal muscle of endothelium-borne, extremely potent myogenic progenitor cells. Einally, we have characterized and purified perivascular cells - or pericytes - from human tissues and... 

In most instances the test system will be self-evident (e.g., the animal to which the test article is administered or applied). Studies with micro-organisms, however, sometimes present difficulty in defining the test system. In the case of the Ames test, for example, the test system is not merely the colonies of salmonella or yeast, but includes in addition the culture medium, metabolic activation agent (if any), biotin, histidine, and buffer (if any). The last sentence of the definition makes it clear that untreated control groups also meet the definition of test system even though a test or control article is not administered or applied to such groups. 

Even though there are many leadership definitions, Komvies, Lucas, and McMahon (1998) noted several basic assumptions about leadership that are incorporated into the preceding definitions. These assumptions are that leadership is a learned behavior, is teachable, occurs at all levels of the organization, does not require a charismatic personality, is a relational process, is culturally influenced, requires followership, involves purposeful change that satisfies collective needs... 

Since adult cestodes, freshly removed from a host gut, are invariably covered with a mucus film containing micro-organisms such as yeasts, bacteria and fungi, most workers have used larval stages, which invariably occur in sterile habitats, as initial culture material. Nevertheless, by application of antiobiotics certain species of adult cestodes (e.g. H. diminuta, E. granulosus) may readily be cultured in vitro after removal from the definitive host before the end of the pre-patent period and then maintained in vitro, when egg release is safely contained within the culture vessel (736,811, 867). 

Mycobacterium tuberculosis. Many polysaccharides from this organism have been studied10 and have been isolated from the culture medium, the somatic portion of the cell, and the cell lipoids. Only in a few cases have the structures been definitely established. 

In humans, sepsis can follow pulmonary and nonpulmonary infections, and ARDS can occur in either clinical setting (reviewed in ref. 5). Sepsis is defined as the systemic response to a definite or probable tissue infection, and typically includes changes in body temperature, blood leukocyte counts, hemodynamic parameters, and organ function (6). There is an important distinction to be made between bacteremia, defined simply by a positive blood culture, and sepsis, which includes a specific systemic response. Most cases of bacteremia are not associated with clinical evidence of sepsis, and bacteremia by itself is rarely associated with ARDS (7). Rather, it appears that a primary tissue infection is an important requirement for the onset of sepsis in humans, and an important antecedent for ARDS whether or not bacteremia is detectable (8). 

Organizing Committee is aware that such stable interest and the devotion to our conference are related to the place and the time of its realization. The Crimea in the velvet season fascinates many people. This small peninsula is saturated with historical and cultural sights. As is generally known, the scientists by definition, is the most inquisitive part of population, because the scientist is a person who learns, studies all his life. So, let s us wish ourselves the fruitful work and unforgettable impressions by staying in one of remarkable cities of the Crimea, as Sevastopol. 

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