National parks are increasingly recognized as playing an important role in the development of nature-based tourism destinations that promote effective management of natural resources and socioeconomic development. The paper was designed to evaluate the tourism attractiveness and performance of national parks in Vietnam. The tourism performance of 30 Vietnamese national parks was evaluated using multiple criteria decision analysis with the stochastic multicriteria acceptability analysis (SMAA) and preference ranking organization method for enrichment evaluation (PROMETHEE) method; thirteen national park attributes were used to determine tourism attractiveness, measured by an exponential weighted acceptability index. It was found that the Phong Nha – Ke Bang, Cuc Phuong, and Ba Be National Parks were most attractive for more than 95% of all possible preference structures. In addition, 12 non-dominated national parks were identified, and for an average supporter of most non-dominated protected areas, the trail criterion appears to be the most important. A statistically significant correlation was found between tourism attractiveness and the number of tourists who visited national parks. Our findings offer potentially useful information for decision makers in developing effective tourism marketing and management strategies for national parks in Vietnam.

Background The purpose of this study was to evaluate the effect of nail polish, gel polish hybrid, gel nail, and acrylic nail powder and the removal of these formulas on the nail plates properties, particularly the influence of different coatings on morphology and pH.Methods The morphology and structure of nail plates were analyzed with use of scanning electron microscopy. The pH values of the nail plates of hands were measured using the system Courage & Khazaka.Results The analysis of morphology and structure of the surface of nail plates showed distinct changes caused by decorative coatings. The most common ones include fragility and splitting of the nails. The pH value measured in the whole group ranged from 5.21 to 7.00. ConclusionsThe methods used to prepare nails for decoration and all methods of removing the applied preparations damage the healthy nail plates. The most common changes are brittleness and nail splitting. The nail polish remover causes less damage than acetone, and the use of a nail drill machine and nail file causes the greatest destruction of nail plates. The biggest effect on the pH change has the gel polish hybrid, gel nail, and acrylic nail powder, causing the pH value of nail plates to rise above 6.0, whereas after the application of the nail polish, the pH of the plates was on average 5.8 which is closest to the normal value, assumed as physiological.

Retinol peel treatments can help to increase the amount of skin surface lipids in women during menopause.

Streszczenie: Wprowadzenie nowego produktu jest procesem kosztownym i długotrwałym. Brak informacji o preferencjach potencjalnych klientów stanowi zawsze duży problem w prognozowaniu przyszłych udziałów w rynku. W artykule proponowane jest nowatorskie wykorzystanie metody stochastycznej wielowymiarowej analizy akceptowalności (SMAA), do badania przewagi konkurencyjnej nowych produktów i prognozowania ich udziałów w rynku. Możliwe jest to dzięki reinterpretacji podstawowych wskaźników metody SMAA. Dzięki temu, posiadając jedynie informacje o udziałach w rynku i specyfikacji technicznej poszczególnych produktów, możliwa jest prognoza przyszłych udziałów w rynku nowo wprowadzanych produktów. W celu lepszego zobrazowania idei kryjącej się za proponowaną metodą został przedstawiony prosty przykład liczbowy. W przykładzie tym do modelowania procesu decyzyjnego wykorzystano metodę PROMETHEE.

Informacje o naborze artykułów i zasadach recenzowania znajdują się na stronach internetowych www.pracenaukowe.ue.wroc.pl www.wydawnictwo.ue.wroc.pl Publikacja udostępniona na licencji Creative Commons Uznanie autorstwa-Użycie niekomercyjne-Bez utworów zależnych 3.0 Polska (CC BY-NC-ND 3.0 PL)