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Elektrody w elastycznych ogniwach fotowoltaicznych wymagają zastosowania materiałów charakteryzujących się przezroczystością, przewodnością i elastycznością. Wszystkie te cechy wydaje się spełniać grafen, w oparciu o który udało nam się skonstruować anodę. Pokazujemy, że zwiększenie pracy wyjścia grafenu możliwe było dzięki dodatkowej warstwie tlenków molibdenu lub renu oraz że pojedyncza warstwa...
The article describes how the notion of groups at risk of HIV infection changed under the influence of the development of studies on HIV in the years 1981–1986. The first diagnosed patients with the HIV symptoms were homosexual persons and drug addicts. In the initial phase of virus occurrence in the world these two groups were commonly regarded as the virus carriers and only they were associated...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.