МАТЕМАТИКА И ЕСТЕСТВЕННЫЕ НАУКИ

Raspberry Pi – точная миниатюрная копия полноценного компьютера, наделенная аналогичными функциями. Вместе с тем Raspberry Pi представляет собой нечто большее, чем современный компьютер: с его помощью вы можете создать собственную операционную систему и соединить провода, цепи и контакты на плате. Эта книга предназначена для тех, кто приступает к освоению Raspberry Pi. Показано, как настроить оборудование; описываются интерфейс устройства, его операционная система и базовые навыки работы. Изучив примеры программирования на Scratch 3 и Python, вы сможете расширить функционал Raspberry Pi, написав собственные программы и игры. Цветные иллюстрации и удобные пошаговые инструкции упрощают обучение.

Rare and endangered habitat types and vascular plant species were studied in the canyon associated with slope cirque “Gorodskaya shchel’ (Town Crack)” in the southern part of Khibiny Mountains (Murmansk Region). Habitat types are interpreted based on a phytosociological approach (Braun-Blanquet classification). Habitat type “D4.2. Basic mountain flushes and streamsides, with a rich arctic-montane flora” of the Emerald Network (partly coincides with type 3220 “Alpine rivers and the herbaceous vegetation along their banks” of Council Directive 92/43/EEC) includes two associations: Mniobryo–Epilobietum hornemannii Nordhagen 1943 of alliance Mniobryo–Epilobion hornemannii Nordhagen 1943, сlass Montio–Cardaminetea Br.-Bl. et Tx. ex Klika et Hadač 1944, and Oxyrietum digynae Gjaerevoll 1956 of alliance Saxifrago stellaris–Oxyrion digynae Gjaerevoll 1956, class Salicetea herbaceae Br.-Bl. 1948. Habitat type “H2.6 Ultra-basic screes of warm exposures” of the Emerald Network is represented by community type Racomitrium spp.–Ranunculus glacialis (class Thlaspietea rotundifolii). These habitats harbor a number of Red Data Book species: 16 rare vascular plants including two species of the Red Data Book of Russia, four species of Red Data Book of Murmansk Region and ten species which need special attention to their state in the natural environment if the Murmansk Region occurred in the studied canyon, cirque and nearest surroundings. As the area is out of the borders of National Park “Khibiny” and has high conservation value, it is necessary to establish here the botanical nature monument.

The second issue of Romanov Observatory Studies investigates the unexplored effect of the Earth on the flow of time, suggests the definition for the law of media establishment, calculates the constant of temporal fading, determines the size of life-centered space and of the living center of the world, calculates the ballistics of the «anomalous» deceleration of Pioneer 10 and other parameters, which are compared to the known ones.

The reproductive features of the pea clam Pisidium casertanum in relict lakes of Bolshezemelskaya Tundra were studied. The P. casertanum population in the Vashutkiny Lakes of Bolshezemelskaya Tundra has a single period of summer reproduction. We suppose that the release of embryos mainly occurs between July and August and the breeding season could probably begin in May-June. The positive relationship between brood size and parent shell length was detected. We did not find a specific brooding mechanism, accompanied by asynchronous development and release of embryos by the parent in the population of P. casertanum in the Vashutkiny Lakes. The reason for this is probably related with the environmentally more stable freshwater habitats of the relict Vashutkiny Lakes in comparison with the lakes of the High Arctic.

The second issue of Romanov Observatory Studies investigates the unexplored effect of the Earth on the flow of time, suggests the definition for the law of media establishment, calculates the constant of temporal fading, determines the size of life-centered space and of the living center of the world, calculates the ballistics of the «anomalous» deceleration of Pioneer 10 and other parameters, which are compared to the known ones.