Publications by authors named "A Kryk"

Indonesia is listed as a region with high marine biodiversity, especially when considering the three large tropical ecosystems: seagrass beds, mangroves and coral reefs. It is likely that the biodiversity of diatoms in this area is also high. Samples for this research were taken from the remote area of Bawean Island and Tomini Gulf in Central Sulawesi.

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Diatom-based indices are a recommended approach in the assessment of the ecological status of lakes and rivers, required by the EU Water Framework Directive. To optimise the time-consuming microscopic analyses, we determined the lowest number of diatom valves needed to be identified ('counted') in a sample to arrive at a reliable ecological status assessment based on the Polish multimetric diatom indices (diatom index, IO for rivers, and diatom index for lakes, IOJ). We compared the indices calculated with different valve counts.

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Article Synopsis
  • - A new genus and species of monoraphid diatom, named Witkowski & Riaux-Gobin gen. nov. and Witkowski & Riaux-Gobin sp. nov., was discovered in the coral reefs of the Indian and Pacific Oceans during a benthic diatom survey.
  • - The distinct features of this diatom include an alveolate sternum valve with unique structures and specific internal characteristics that differentiate it from similar species.
  • - The analysis places the new genus within the Achnanthidiaceae family due to its unique raphe valve and sternum valve structures, highlighting the complex morphology observed through various microscopy techniques.
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Introduction: Until recently osteoporosis was seen mainly as a woman's problem. However, in the last ten years there has been rising awareness in society that osteoporosis constitutes an inseparable element of getting old for men as well. The aim of the research was to evaluate men's knowledge about osteoporosis and its risk factors contributing to the development of the disease.

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During one-year administration of fluphenazine [FLU], 1 or 5 mg/kg/d ip. two phases in the behavior of rats were observed. During the first four months of treatment the locomotor and exploratory activities were depressed, while during the following months the reversal of this phenomenon was observed, and the activity of FLU-treated rats increased, particularly in the open-field test.

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