scholarly journals Modification as a method of directed change in the properties of ferro-piezoceramics

Author(s):  
Kh A Sadykov ◽  
L A Shilkina ◽  
M R Daudov ◽  
I A Verbenko ◽  
A V Nagaenko ◽  
...  
Keyword(s):  
CHEST Journal ◽  
2011 ◽  
Vol 140 (4) ◽  
pp. 696A
Author(s):  
Alphonso Quinones ◽  
Elena Lennon ◽  
Rachael Ali-Permell

1963 ◽  
Vol 22 (1) ◽  
pp. 95-104
Author(s):  
Thomas Fraser

The charge has been made that the methodological tools and theoretical models available to anthropologists are insufficiently precise to enable accurate prediction in the field of directed social and cultural change. It has further been charged that in their ex post facto analyses of the dynamics involved in such situations, anthropologists as well as other social scientists tend to give far more attention to attempted innovations that "didn't work" than to those areas where change has been successful. While the second charge is belied by many studies such as those included in the volumes edited by Spicer and Paul and the special issue of Applied Anthropology, anthropologists have, for the most part, been hesitant to extend their generalizations, based on the analysis of change, to the task of specifying, more or less concretely, the conditions favoring or inhibiting social and cultural change. Thus, in spite of a growing theoretical corpus there appears to be reluctance to put it to the practical test of prediction or planning.


1968 ◽  
Vol 27 (2) ◽  
pp. 143-146 ◽  
Author(s):  
Asghar Fathi
Keyword(s):  

2020 ◽  
pp. 20-22
Author(s):  
R. M. Rozov ◽  
E. Yu. Vasenkin ◽  
N. V. Borisova ◽  
S. G. Kalganova ◽  
T. P. Ustinova

Author(s):  
Payzullakhanov Mukhammad Sultan Saidvalikhanovich ◽  
Xolmatov Abdurashid Abdurakhim ugli ◽  
Sobirov Muslimbek Muxsinjon ugli

Magnetic materials synthesized from a melt in a solar furnace were studied. It is shown that melts consist of crystallites of a metastable structure and an amorphous phase. This state contributes to a directed change in structurally sensitive properties (electrical, magnetic, and optical). It has been revealed that the magnetization values of barium and strontium ferrites synthesized from a melt in a stream of concentrated solar radiation increase 1.8 times in comparison with materials synthesized from solid-phase reactions. KEYWORDS- ferrites, magnetic material, solar furnace, structural defects, magnetization.


2021 ◽  
pp. 875687052110524
Author(s):  
Shana J. Haines ◽  
Michael F. Giangreco ◽  
Katharine G. Shepherd ◽  
Jesse C. Suter ◽  
Mika Moore

In this article, we describe the self-directed change made by a rural elementary school in response to a data-based examination of its service-delivery model that revealed its lowest performing students were spending most of their time with the school’s least qualified staff. This mixed-method case study describes (a) why and how the school shifted personnel deployment and utilization, (b) factors that facilitated the shifts in service delivery, and (c) perceived effects of the changes. Findings demonstrate how implementing data-based decision-making through strong collaborative leadership led to recognizing, exploring, and modifying the school’s overreliance on paraprofessionals by increasing the availability of more highly skilled personnel to facilitate more inclusive instruction and collaboration. Participants also described challenges and perceived negative aspects related to change. We conclude with implications for practice, including how this study could inform similar change efforts in small rural schools, and suggestions for future research.


Sign in / Sign up

Export Citation Format

Share Document