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Number of results: 30
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Keywords food powders

Abstract

We discuss meal colors, food-drying secrets, and changing consumer demands with Dr. Anna Michalska from the PAS Institute of Animal Reproduction and Food Research in Olsztyn.
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Abstract

Koncepcja ideałów nauki była wkładem Stefana Amsterdamskiego do sporu na temat racjonalności naukowej. Przyjmując, iż metoda naukowa nie jest zjawiskiem ponadhistorycznym i że towarzyszą jej silne presupozycje normatywne, Amsterdamski staje po stronie Kuhna w jego dyskusji z Popperem oraz jego kontynuatorami i poplecznikami. W istotnym sensie Amsterdamski jest jednak Popperystą, jego intencją jest bowiem rozszerzenie zasięgu krytycznej dyskusji poprzez odniesienie analiz krytycznych do czegoś, co określa on nowożytnym ideałem nauki. Prace Amsterdamskiego, zwłaszcza omawiana w artykule monografia Między historią a metodą, są jednocześnie próbą zabezpieczenia statusu filozofii nauki jako instancji normatywnej w stosunku do ideałów nauki. Artykuł stanowi rekonstrukcję koncepcji Amsterdamskiego i zawiera analizę krytyczną relacji między celami, jakie Amsterdamski sobie stawiał, oraz metodami ich realizacji. Wskazuję na elementy, które wydają mi się w koncepcji ideałów nauki najbardziej problematyczne, sugerując alternatywne sformułowania podnoszonych przez Amsterdamskiego problemów. Wykazuję, iż koncepcja Amsterdamskiego upoważnia do podjęcia próby opracowania nowej koncepcji podmiotu nauki, która to koncepcja mogłaby dostarczyć odpowiednich wskazówek do krytyki nowożytnego ideału nauki.
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Keywords proszki owocowe

Abstract

O kolorach posiłków, tajemnicy suszenia oraz przymusie dla producentów mówi dr Anna Michalska z Instytutu Rozrod Zwierząt i Badań Żywności PAN w Olsztynie.
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Abstract

A mode-locked Tm3+-doped fibre laser and amplifier operating at a central wavelength of 1994.3 nm is demonstrated. A thulium oscillator is passively mode-locked by a semiconductor saturable absorber mirror to generate an average power of 17 mW at a fundamental repetition rate of 81 MHz in a short linear cavity. This 2-mm laser train is amplified to an average power to 20.26 W by two double-clad thulium-doped allfibre amplifiers. The pulse energy, duration and peak power is 250 nJ, 23 ps and 9.57 kW, respectively. This represents one of the highest values of average power at #24; 2-mm-wavelength for picosecond thulium-doped fibre lasers and amplifiers. The performance of the laser system is described in details.
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Abstract

The fusulinid foraminifers of Schellwienia arctica (Schellwien, 1908) have been investigated from Polakkfjellet Mt., south Spitsbergen, and used as biostratigraphic marker for the latest Carboniferous earliest Permian strata of the Treskelodden Formation. A series of thin sections enable to investigate the internal structure and growth pattern of individual specimens. The observed variation of growth suggests dynamic environmental conditions at the investigated location and most likely over one-year long life span of this foraminifer.
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Abstract

Changes that take place in a job environment, job structure, job perception, as well as in the sphere of features, meanings and values ascribed to work are constituents of changes in the contemporary world, particularly of the development of the free market economy. It is difficult to overestimate the significance of these changes for the quality of career construction, its development and modification of its individualized paths. The contemporary study of career requires taking into account multicontextual changes in the world of work, that make employees face new challenges. In the economy based on knowledge, which in turn determines the orientation of the modern society to knowledge, the career development of its members and investing in their „portfolio” become the key elements of such an economy. The development of a career “portfolio” means the investment and renewal of the career capital on the path of proactivity.
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Abstract

In knowledge based economy, which actually reflects the knowledge oriented modern society, career development of its members becomes the key factor, same as investing in career “portfolio”. In the article a career construct is invoked as an individual’s property considering individual career choices, individual career development planning and monitoring strategies. When addressing career related matter, one cannot overlook the issue of subjective meaning given to a career in the context of satisfactory outcome and success achievement experienced by the subject. Cognitively interesting issue addressed by the author are the results of research into evaluation of one’s own chances to succeed from the perspective of university students who are in the transition period from academic education to entering a job market.
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Abstract

In the article the author discusses the relationship between education and socio-cultural needs. The socio – cultural reality is the reality of a permanent change. It is difficult to describe and even more difficult to understand. The specific character of qualitatively new changes in the relations between globality and locality implies a completely new perception of reality, ways of interpreting the world, and a new quality of judgments about the condition of the modern man. This reality is also a ”multiplicity of worlds”, which means a large number of possibilities to create oneself. What individuals perceive as their ”own” has the biggest developmental potential when it is worked out on the proactivity path. proactive people are distinguished by interrelated features: the search for a possibility of change (the environment examination, going beyond limitations of a given situation), establishing effective and change oriented goals (opening new paths of action), foreseeing problems and remedia measures (the analysis of one’s own achievements, looking for signals of threats or dangers), looking for new ways of achieving goals (the ambition is to make a new tradition).
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Abstract

The paper presents the summary of research on polymer melt particle motion trajectories in a disc zone of a screw-disk extruder. We analysed two models of its structure, different in levels of taken simplifications. The analysis includes computer simulations of material particle flow and results of experimental tests to determine the properties of the resultant extrudate. Analysis of the results shows that the motion of melt in the disk zone of a screw-disk extruder is a superposition of pressure and dragged streams. The observed trajectories of polymer particles and relations of mechanical properties and elongation of the molecular chain proved the presence of a stretching effect on polymer molecular chains.
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