Bedřich Machulka was born on June 22, 1875. Since his youth he had been interested in Africa. However, only after meeting Richard Štorch he was able to realize his dreams. Together they parted for Africa. They settled in Tripolis in Libya and dedicated themselves in hunting and stuffing animals. Afterwards they moved to Sudan where they established a base for hunting expeditions. In the year 1927 Štorch died. Machulka moved his interest to eastern Africa. Since 1929 he had established a partnership with Duke Adolf Schwarzenberg (1890–1950). At the beginning their collaboration went on without problems. However, after Machulka failed to organize film recording in Kenya, the Duke did not entrust him anymore with organizing of other expeditions. This period of life of Machulka, until the year 1935, is well illustrated by letters that he exchanged with the Duke through the Schwarzenberg Office. Schwarzenberg valued Machulka highly for his professional and organizational qualities. Therefore, in spite of the mutual disagreements he found him a place of preserver and curator of small museum of ethnographic artifacts and trophies in the castle Ohrada (on the manor of Hluboká). There Machulka had worked throughout the Second World War until the year 1947, when all the properties of the Schwarzenbergs on the territory of Czechoslovakia were nationalized. Machulka finished his life in Prague in humble conditions. He died on March 6, 1954.
Food security has been one of the most pressing issues since time immemorial. Food production and provisioning have always been demanding task, especially in times of war. An armed conflict often leads to disruption of the prevailing social order and it transforms social and economic patterns of everyday life. Moreover, wars also generally result in shortages of food, water and medical supplies, which further generates undernourishment as well as chronic hunger and famine. This article discusses the role of food in armed
conflicts with an increased focus on situations when starvation is intentionally imposed on targeted populations. As Collinson and Macbeth (2014) emphasise, such intentional restriction of food by either of the sides of a conflict is a "weapon of war". These complex
processes are going to be illustrated primarily on the example of the 1990s war in Bosnia and Herzegovina. Nevertheless, selected events and circumstances are going to be additionally compared with historical use and social significance of salt with an emphasis on warfare. The main research focus is aimed at the former UN "Safe" Area Srebrenica and theoverall scarcity of salt in the besieged enclave during the 1990s war. Not only that during the Bosnian War, salt was purchased for precious metal items but also for those on the verge of life and death, the small amount of salt sometimes became worth more than gold.
In this interview with documentary filmmaker Apolena Rychlíková, Anna Šabatová, one of the most remarkable figures of modern Czechoslovak history, considers not only the intellectual foundations of Charter 77 and the dissident movement, but also what shaped Šabatová’s personal background. The interview introduces an often-overlooked continuity between dissent and critical approaches to the post-communist era. This continuity is present in the humanistic, left-wing thought of Anna Šabatová, stemming from the tradition of the Czechoslovak democratic left, which permeates her whole life, not only philosophically and intellectually, but above all practically. Anna Šabatová’s lifelong efforts for a more just society have never stopped, connecting the period before 1989 with the period that followed.
The aim of the study was to examine the potential impacts of bisphenol A (BPA) and its analogues BPB, BPF, and BPS on mice TM3 Leydig cells, with respect to basal cell viability parameters such as metabolic activity, cell membrane integrity, and lysosomal activity after 48-h exposure. In addition, monitoring of potential bisphenol´s actions included evaluation of ROS production and gap junctional intercellular communication (GJIC) complemented by determination of testosterone secretion. Obtained results revealed significant inhibition in mitochondrial activity started at 10 µg/ml of bisphenols after 48-h exposure. Cell membrane integrity was significantly decreased at 5 µg/ml of BPA and BPF and 10, 25, and 50 µg/ml of BPA and BPS. The lysosomal activity was significantly affected at 10, 25, and 50 µg/ml of applied bisphenols. A significant overproduction of ROS was recorded mainly at 5 and 10 µg/ml of tested compounds. In addition, significant inhibition of GJIC was observed at 5 µg/ml of BPB followed by a progressive decline at higher applied doses. In the case of testosterone production, a significant decline was confirmed at 10, 25 and 50 µg/ml.
In this paper, for complete Riemannian manifolds with radial Ricci or sectional curvature bounded from below or above, respectively, with respect to some point, we prove several volume comparison theorems, which can be seen as extensions of already existing results. In fact, under this radial curvature assumption, the model space is the spherically symmetric manifold, which is also called the generalized space form, determined by the bound of the radial curvature, and moreover, volume comparisons are made between annulus or geodesic balls on the original manifold and those on the model space., Jing Mao., and Obsahuje seznam literatury