Tactile balls, an interactive device facilitating the development of the sense of touch

Celem artykułu jest zaprezentowanie projektu interaktywnego urządzenia wspomagającego rozwój zmysłu dotyku, Kulek-Fakturek. Urządzenie składa się z zestawu półkul z parami o identycznych fakturach. Zadaniem osoby ćwiczącej jest znalezienie i połączenie tych par poprzez badanie/ocenianie dotykiem faktury powierzchni. Poprawne wykonanie zadania zostaje każdorazowo nagrodzone zestawem sygnałów gratyfikujących. Artykuł przedstawia proces projektowania faktury i wytwarzania urządzenia oraz waliduje wartość dydaktyczną łamigłówki w oparciu o opinię specjalistek z dziedziny terapii specjalnej.The aim of the paper is to present a project of a puzzle facilitating the development of the sense of touch, Tactile Balls. The puzzle consists of a set of hemispheres, with pairwise identical textures. The task is to find and connect these pairs by studying their surfaces with the sense of touch. Making a valid connection is gratified with a set of stimuli. The paper shows the process of designing and manufacturing the device and evaluates its educational value based on the special therapy specialists’ opinion

Plant stem cells as innovation in cosmetics

The stem cells thanks to their ability of unlimited division number or transformation into different cell types creating organs, are responsible for regeneration processes. Depending on the organism in which the stem cells exists, they divide to the plant or animal ones. The later group includes the stem cells existing in both embryoís and adult humanís organs. It includes, among others, epidermal stem cells, located in the hair follicle relieves and also in its basal layers, and responsible for permanent regeneration of the epidermis. Temporary science looks for method suitable for stimulation of the epidermis stem cells, amongst the other by delivery of e.g., growth factors for proliferation that decrease with the age. One of the methods is the use of the plant cell culture technology, including a number of methods that should ensure growth of plant cells, issues or organs in the environment with the microorganism-free medium. It uses abilities of the different plant cells to dedifferentiation into stem cells and coming back to the pluripotent status. The extracts obtained this way from the plant stem cells are currently used for production of both common or professional care cosmetics. This work describes exactly impact of the plant stem cell extract, coming from one type of the common apple tree (Uttwiler Spatlauber) to human skin as one of the first plant sorts, which are used in cosmetology and esthetic dermatology