Control with an independent variation of an unobservable parameter

Cybernetics ◽  
1987 ◽  
Vol 23 (2) ◽  
pp. 207-215
Author(s):  
V. A. Labkovskii
Blood ◽  
1946 ◽  
Vol 1 (6) ◽  
pp. 548-554 ◽  
Author(s):  
WILLIAM C. BOYD ◽  
FRANCIS C. LOWELL

Abstract The anti-A and anti-B titers in group O individuals may vary independently following injection of group-specific substances, although such independent variation was not always seen. The rise in anti-B which followed the injection of A sub stance in some instances may have been due to traces of B activity in the A substance or to nonspecific stimulation of antibody which may follow the injection of any antigen. The part played by such factors was not determined. It is concluded that the presence of A and B agglutinins in O individuals is not dependent on a single cellular characteristic responsible for the simultaneous formation of the isoagglutinins.


1966 ◽  
Vol 18 (2) ◽  
pp. 471-482 ◽  
Author(s):  
Carl Wagner

Expectation and attractiveness of group membership were measured under conditions of concurrent but independent variation of task difficulty and associated reward magnitude. The experiment was initially performed on a sample of 108 high school psychology students and was replicated on a separate sample of 99 Ss from the same population. In both experiments, the results indicated that task difficulty affected neither dependent variable, but that both expectation and attractiveness increased with greater magnitude of reward. With task difficulty held constant, goal attractiveness varied directly with magnitude of reward, and, by implication, with goal expectation. A post hoc analysis suggested that the effects of magnitude of reward upon attractiveness of group membership were mediated via expectation of attaining this goal.


Author(s):  
Л.А. Беляев ◽  
О.Н. Глазунова

Среди находок, сделанных при раскопках 2011–2012 гг. в Воскресенском монастыре на р. Истре (Новый Иерусалим), была обнаружена серия из 25 фрагментов, относящихся к изразцам с изображением на сюжет «Лестница возраста человека». Он никогда ранее не встречался на изразцах ни в России, ни, сколько известно, в Европе. В то же время этот сюжет очень распространен в нравоучительных гравюрах XVI и, особенно, XVII–XIX вв., в основном в протестантских странах. Среди русских гравированных и рисованных лубков (народных картинок) он также встречается. Анализ изображения позволяет видеть в изразцовой серии из Нового Иерусалима самостоятельную вариацию на тему этой притчи, составленную одним из европейских мастеров, работавших в монастыре с середины XVII до середины XVIII в. Изменение возрастной хронологии, введение дополнительных элементов симметрии и др. выявляют местное влияние. The finds from the excavations conducted in 2011–2012 in the Resurrection Monastery on the Istra (New Jerusalem) revealed a series of 25 fragments attributed to ceramic tiles depicting ’The Ladder of Ages of Man’. This narrative scene has never been identified on tiles either in Russia or, to the best of our knowledge, in Europe. At the same time this narrative was very common in moralizing engravings of the 16th and, especially, the 17th–19th centuries, mainly, in protestant countries. It also occurs on Russian engraved and painted luboks (popular prints). The analysis of the image permits interpretation of the tile series from the New Jerusalem Monastery as an independent variation on the topic of this parable made by a European craftsman who worked in the monastery from the mid-17th century to the mid-18th century. Changes in the periodization of ages of man, introduction of additional symmetry elements, etc. reveal local influence.


2022 ◽  
Vol 7 (1) ◽  
Author(s):  
S. Reschke ◽  
D. G. Farkas ◽  
A. Strinić ◽  
S. Ghara ◽  
K. Guratinder ◽  
...  

AbstractMagnetoelectric phenomena are intimately linked to relativistic effects and also require the material to break spatial inversion symmetry and time-reversal invariance. Magnetoelectric coupling can substantially affect light–matter interaction and lead to non-reciprocal light propagation. Here, we confirm on a fully experimental basis, without invoking either symmetry-based or material-specific assumptions, that the optical magnetoelectric effect in materials with non-parallel magnetization (M) and electric polarization (P) generates a trilinear term in the refractive index, δn ∝ k ⋅ (P × M), where k is the propagation vector of light. Its sharp magnetoelectric resonances in the terahertz regime, which are simultaneously electric and magnetic dipole active excitations, make Co2Mo3O8 an ideal compound to demonstrate this fundamental relation via independent variation of M, P, and k. Remarkably, the material shows almost perfect one-way transparency in moderate magnetic fields for one of these magnetoelectric resonances.


2019 ◽  
Vol 26 (11) ◽  
pp. 1643-1647 ◽  
Author(s):  
Simon Henriet ◽  
Umut Simsekli ◽  
Sergio Dos Santos ◽  
Benoit Fuentes ◽  
Gael Richard

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