Let y be observation vector in the usual linear model with expectation Aβ and covariance matrix known up to a multiplicative scalar, possibly singular. A linear statistic aTy is called invariant estimator for a parametric function ϕ=cTβ if its MSE depends on β only through ϕ. It is shown that aTy is admissible invariant for ϕ, if and only if, it is a BLUE of ϕ, in the case when ϕ is estimable with zero variance, and it is of the form kϕˆ, where k∈⟨0,1⟩ and ϕˆ is an arbitrary BLUE, otherwise. This result is used in the one- and two-way ANOVA models. Our paper is self-contained and accessible, also for non-specialists.
Christian Hartmann, Thomas Vordermeyer, Othmar Plöckinger, and Roman Töppel (eds.). Hitler, Mein Kampf: Eine kritische Edition. Munich and Berlin: Institut für Zeitgeschichte, 2016, vols 1-2, 947 + 1019 pp., ISBN 978-3-9814052-3-1. With Edith Raim, Pascal Trees, Angelika Reizle, and Martina Seewald-Mooser. Includes illustrations, maps, a list of all known translations of Mein Kampf before 1945, a list of abbreviations, a detailed bibliography in three parts (before 1932, 1933-45, after 1945), and four indexes (a biographical index and indexes of persons, places, and subjects).In the form of an essay, the author comments here on the 2016 critical edition of Hitler’s Mein Kampf (1925-26), edited by a team of historians from the Institute of Contemporary History in Munich, with additional assistance from others. He contemplates the nature and importance of this book and discusses its author and his meaning in the history of twentieth-century central Europe. He then discusses some of the ideas of Mein Kampf, and clarifi es the historical context of the work, returning to the circumstances that led to its being written and published. He also discusses some of Hitler’s fellow travellers in the Nazi movement, who were of importance for this key work. The author brings up episodes in Hitler’s life, and pays particular attention to his still unclear transformation from an apolitical soldier into a zealous antisemite and political agitator of exceptional rhetorical skill, who was able to bewitch the German people and become their Führer. The author also discusses the diffi culties that the editors of this critical edition had to struggle with, and he praises their work as utterly solid and astonishingly thorough, particularly the commentaries in the huge critical apparatus. The author concludes by discussing reactions both to the fi rst edition of Mein Kampf and to this critical edition, and he discusses various attempts to publish a Czech edition.
The method of cellular immobilization and perfusion was applied to adipocytes. The lipolytic effect of isoprénaline, whose action is produced as a result of receptor-drug interaction, was followed. An agarose solution kept at at 37 °C was mixed 1:1 with the cell suspension. Thereafter, adipocytes were immobilized in the agarose threads. The lipolytic effect of 0.1 ml of isoprénaline (1x10~4 mol/1), that was rapidly introduced to the cell perfusion inlet in a non-recirculating system, was monitored by assessing glycerol production. The immobilized and perfused adipocytes exhibited significant lipolytic activity. After reaching the maximum effect, 0.1 ml of propranol (lxl 0-3 mol/1) that was applied to the bioreactor inlet, abolished the isoprénaline effect. The present data demonstrate the potential applicability of immobilized perfused adipocytes for various kinds of studies.
Adrenergic receptors (ARs) are the primary targets of catecholamines released from the sympathetic nerve endings during their activation. ARs play a central role in autonomic nervous system and serve as important targets of widely used drugs. Several ARs gene polymorphisms were found to be associated with cardiovascular disease in previous clinical studies. Although more precise mechanism of the polymorphisms influence on autonomic control of cardiovascular system was studied in many previous physiological studies, their results are not unequivocal. This paper reviews the results of clinical and physiological studies focused on the impact of selected common single nucleotide polymorphisms of ARs genes involved in sympathetic control on cardiovascular system and its control. In summary, many studies assessed only a very limited range of cardiovascular control related parameters providing only very limited view on the complex cardiovascular control. The overview of partially contradicting results underlines a need to examine wider range of cardiovascular measures including their reactivity under various stress conditions requiring further study. It is expected that an effect of one given polymorphism is not very prominent, but it is suggested that even subtle differences in cardiovascular control could – on a longer time scale – lead to the development of severe pathological consequences.
In presented work, raw, expanded and acid treated vermiculites were used as low-cost and active adsorbents for reducing of environmental pollution with heavy metals. Acid treatment was performed at elevated temperature (95°C) for 2 and 24 h in solution of HNO3. Adsorption capacity towards Fe3+ was studied in column, semi-batch and batch mode. It was shown that all samples are effective in removal of heavy metals; however adsorption mechanism is based not only on ion exchange of interlayer cations but also precipitation/deposition processes. Starting material and modified samples as well as spent adsorbents were characterized with respect to the vermiculite structure using X-ray diffraction method., Agnieszka Węgrzyn, Lucjan Chmielarz, Paweł Zjeżdżalka, Andrzej Kowalczyk, Magdalena Jabłońska, Xavier Baldrich Tolosa and Marek Michalik., and Obsahuje bibliografii