Theoretical Background for the Inversion of Seismic Waveforms, Including Elasticity and Attenuation

1988 ◽  
pp. 365-399 ◽  
Author(s):  
Albert Tarantola
Keyword(s):  
Theoretical Background ◽  
Seismic Waveforms

Training Methods With Clinicians and Students—A Personal Story and Change: Narrative Therapy for Stuttering

2008 ◽  
Vol 18 (1) ◽  
pp. 37-42 ◽  
Author(s):  
Margaret Leahy
Keyword(s):  
Narrative Therapy ◽  
Evidence Based Practice ◽  
Theoretical Background ◽  
Evidence Based ◽  
Training Methods ◽  
Sense Of Control ◽  
Case Description ◽  
General Outline ◽  
Personal Story ◽  
Fluency Disorders

Abstract Educating students and informing clinicians regarding developments in therapy approaches and in evidence-based practice are important elements of the responsibility of specialist academic posts in universities. In this article, the development of narrative therapy and its theoretical background are outlined (preceded by a general outline of how the topic of fluency disorders is introduced to students at an Irish university). An example of implementing narrative therapy with a 12-year-old boy is presented. The brief case description demonstrates how narrative therapy facilitated this 12-year-old make sense of his dysfluency and his phonological disorder, leading to his improved understanding and management of the problems, fostering a sense of control that led ultimately to their resolution.

A novel cryptosystem based on abstract automata and Latin cubes

2015 ◽  
Vol 52 (2) ◽  
pp. 221-232
Author(s):  
Pál Dömösi ◽  
Géza Horváth
Keyword(s):  
Block Cipher ◽  
Finite Automata ◽  
Theoretical Background ◽  
Point Of View ◽  
Theoretical Point ◽  
Transition Matrices ◽  
Encryption And Decryption ◽  
Secret Keys ◽  
Automata Network ◽  
Fully Functioning

In this paper we introduce a novel block cipher based on the composition of abstract finite automata and Latin cubes. For information encryption and decryption the apparatus uses the same secret keys, which consist of key-automata based on composition of abstract finite automata such that the transition matrices of the component automata form Latin cubes. The aim of the paper is to show the essence of our algorithms not only for specialists working in compositions of abstract automata but also for all researchers interested in cryptosystems. Therefore, automata theoretical background of our results is not emphasized. The introduced cryptosystem is important also from a theoretical point of view, because it is the first fully functioning block cipher based on automata network.

Possible examinations of stone machining focused on the relationship between technological parameters and surface quality

2013 ◽  
Vol 4 (1) ◽  
pp. 63-68 ◽  
Author(s):  
Zs. Kun ◽  
I. G. Gyurika
Keyword(s):  
Surface Roughness ◽  
Metal Cutting ◽  
Cutting Speed ◽  
Theoretical Background ◽  
Motion Path ◽  
Depth Of Cut ◽  
Manufacturing Cost ◽  
Technological Parameters ◽  
The Relationship ◽  
Manufacturing Time

Abstract The stone products with different sizes, geometries and materials — like machine tool's bench, measuring machine's board or sculptures, floor tiles — can be produced automatically while the manufacturing engineer uses objective function similar to metal cutting. This function can minimise the manufacturing time or the manufacturing cost, in other cases it can maximise of the tool's life. To use several functions, manufacturing engineers need an overall theoretical background knowledge, which can give useful information about the choosing of technological parameters (e.g. feed rate, depth of cut, or cutting speed), the choosing of applicable tools or especially the choosing of the optimum motion path. A similarly important customer's requirement is the appropriate surface roughness of the machined (cut, sawn or milled) stone product. This paper's first part is about a five-month-long literature review, which summarizes in short the studies (researches and results) considered the most important by the authors. These works are about the investigation of the surface roughness of stone products in stone machining. In the second part of this paper the authors try to determine research possibilities and trends, which can help to specify the relation between the surface roughness and technological parameters. Most of the suggestions of this paper are about stone milling, which is the least investigated machining method in the world.

Exploring Foreign Language Communication Apprehension among the English Language University Students in the English Language Classroom Setting

2018 ◽  
Vol 5 (2) ◽  
pp. 27-39
Author(s):  
Draženka Molnar ◽  
Gabrijela Crnjak
Keyword(s):  
Foreign Language ◽  
English Language ◽  
Communication Apprehension ◽  
Theoretical Background ◽  
General View ◽  
Total Level ◽  
Foreign Language Acquisition ◽  
The Social ◽  
Language Classroom ◽  
Language Communication

Abstract Over the past few decades the interest in communication apprehension has increased among researchers and teachers in the field of second/foreign language acquisition (SLA/FLA).The present paper is set between the macro perspective of the social-psychological period - by giving a general view of communication apprehension (CA) - and the situation-specific period - by taking into consideration the immediate educational context.The paper focuses on the phenomenon of communication apprehension among the Croatian university level students in a foreign language classroom setting.In particular, it investigates if there is a difference in the total level of communication apprehension between undergraduate and graduate students of English Language and Literature.Furthermore, it explores whether there is a relationship between different aspects of communication apprehension and the total level of communication apprehension and which background factor is the best predictor of communication apprehension among the students.The first part of the paper brings a theoretical background of the main concepts in this research, whereas the second part of the paper reports on the research itself.Two sets of instruments, questionnaires completed by the students and in-depth interviews conducted among the teachers, were used for the purpose of this study.The results show that the year of study is not a significant predictor of the communication apprehension level which students experience.Among all variables included in the analysis, the only significant predictors of communication apprehension are evaluations.

Cognitive dysfunctions associated with white matter damage due to cardiovascular burden – determinants and interpretations

2014 ◽  
Vol 45 (3) ◽  
pp. 334-345 ◽  
Author(s):  
Paweł Krukow
Keyword(s):  
Cerebral Cortex ◽  
White Matter ◽  
Cardiovascular Diseases ◽  
Cognitive Disorder ◽  
Theoretical Background ◽  
Dynamic Aspect ◽  
Pathological Changes ◽  
White Matter Damage ◽  
Neuropsychological Disorders ◽  
Considerable Research

AbstractAlthough considerable research has been devoted to cognitive functions deteriorating due to diseases of cardiovascular system, rather less attention has been paid to their theoretical background. Progressive vascular disorders as hypertension, atherosclerosis and carotid artery stenosis generate most of all pathological changes in the white matter, that cause specific cognitive disorder: disconnection syndromes, and disturbances in the dynamic aspect of information processing. These features made neuropsychological disorders secondary to cardiovascular diseases different than the effects of cerebral cortex damage, which may be interpreted modularly.

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