scholarly journals V.E. Fortov and dynamic methods in the physics of nonideal plasma. Chernogolovka

2021 ◽  
Vol 64 (11) ◽  
Author(s):  
Viktor B. Mintsev ◽  
Viktor K. Gryaznov
Author(s):  
V. E. Fortov ◽  
I. T. Iakubov ◽  
A. G. Khrapak

1982 ◽  
Vol 138 (11) ◽  
pp. 361 ◽  
Author(s):  
Vladimir E. Fortov

2020 ◽  
Vol 2020 (8) ◽  
pp. 47-52
Author(s):  
Nataliya Kuznetsova ◽  
Tatyana Karlova ◽  
Aleksandr Bekmeshov

The work purpose consists in the efficiency increase of automated system operation for industrial enterprise resource protection at the expense of the optimization of authentication method application, in particular, biometric one. To achieve the purpose it is necessary to solve the problem of efficient joint use of modern authentication methods, particularly, a static and dynamic biometric authentication. But biometric methods are most expensive from the point of view of their realization. In this connection, within the limits of the paper there is carried out the analysis of modern methods of biological authentication from the point of view of a special order of introduction and joint use. In the paper there is shown a classification of static and dynamic methods for biometric authentication, an example of method combination in the authentication module is presented, there are considered and analyzed the latest methods, in particular, those based on DNA investigations, thermograms of a face and hands (static), gestures (dynamic). The work novelty consists in the presented diagram of authentication module operation. As a conclusion it should be noted that modern authentication systems offer the application of a complex approach: use both biometric methods and other ones for authentication in modules, in particular, based on secret knowledge and material carrier possession. The approach mentioned will allow minimizing the errors of the first and the second kinds, increasing a general level of safety.


2019 ◽  
Vol 23 (11n12) ◽  
pp. 1576-1586 ◽  
Author(s):  
Sara Pfister ◽  
Luca Sauser ◽  
Ilche Gjuroski ◽  
Julien Furrer ◽  
Martina Vermathen

The encapsulation of five derivatives of chlorin e6 with different hydrophobicity and aggregation properties into a series of five poloxamer-type triblock copolymer micelles (BCMs) with varying numbers of polyethylene and polypropylene glycol (PEG, PPG) units was monitored using 1H NMR spectroscopy. NMR chemical shift and line shape analysis, as well as dynamic methods including diffusion ordered spectroscopy (DOSY) and T1 and T2 relaxation time measurements of the chlorin and the polymer resonances, proved useful to assess the chlorin–BCM compatibility. The poloxamers had high capability to break up aggregates formed by chlorins up to intermediate hydrophobicity. Physically entrapped chlorins were always localized in the BCM core region. The loading capacity correlated with chlorin polarity for all poloxamers among which those with the lowest number of PPG units were most efficient. DOSY data revealed that relatively weakly aggregating chlorins partition between the aqueous bulk and micellar environment whereas more hydrophobic chlorins are well retained in the BCM core region, rendering these systems more stable. T1 and T2 relaxation time measurements indicated that motional freedom in the BCM core region contributes to encapsulation efficiency. The BCM corona dynamics were rather insensitive towards chlorin entrapment except for the poloxamers with short PEG chains. The presented data demonstrate that 1H NMR spectroscopy is a powerful complementary tool for probing the compatibility of porphyrinic compounds with polymeric carriers such as poloxamer BCMs, which is a prerequisite in the development of stable and highly efficient drug delivery systems suitable for medical applications like photodynamic therapy of tumors.


2019 ◽  
Vol 32 (1) ◽  
Author(s):  
Leonardo Martins Barbosa ◽  
Sheila Giardini Murta

AbstractThe literature shows that retirement can bring both positive and negative effects. However, there are few tested interventions for preparing workers for this transition and avoiding or minimizing its negative impacts. This paper presents a study with multiple groups that examined the social validity of an intervention for retirement education grounded in contextual behavioral science and acceptance and commitment therapy. Twenty-seven workers aged 29 to 65 divided into three intervention groups participated (group 1, N = 15; group 2, N = 9; group 3, N = 3). According to the participants’ evaluations, the intervention provided socially valid goals, socially acceptable procedures, and socially important effects. However, some improvements are still needed, such as the use of more dynamic methods, better formatted printed material, and increased fidelity between the content’s implementation and the prescribed activities. The positive results indicate that contextual behavioral science may bolster the development of interventions whose components possess evidence for their social validity. The further evaluation of the intervention via a clinical trial study will offer more robust evidence for its effectiveness. It is hoped that by increasing the availability of theory-based interventions in this area, the present study will promote valid strategies to facilitate better adjustment to retirement.


2020 ◽  
Vol 17 (5) ◽  
pp. 545-575
Author(s):  
Allan Nicholas

AbstractThis study investigates the use of dynamically-administered strategic interaction scenarios (D-SIS) in identifying Japanese EFL participants’ difficulties with requesting-in-interaction, and tracking their development. Informed by conversation analysis research, six Japanese EFL learners at a university in Japan carried out D-SIS tasks in two phases, with the aim of both identifying specific aspects of requesting-in-interaction that were challenging, and learner development. Analysis focuses on three particular areas of difficulty that arose for participants during the dialogic interactions—connecting request turn utterance linguistic choices to social context; pre-request expansions of requesting talk, and pre-closing sequences. A coding scheme was applied that analyzed mediation sequences in terms of the efficiency with which participants oriented to and resolved problems, allowing ZPD movement to be quantified. In combination with close qualitative analysis of the transcript data, mediation sequences provided insights into the participants’ knowledge and understanding of these areas that would not have been gained through non-dynamic methods. Results therefore provide insight into areas of difficulty for Japanese learners with regards to requesting, and provide support for the use of the D-SIS task type as a diagnostic tool in regards to request-based talk-in-interaction.


2005 ◽  
Vol 235 (2-4) ◽  
pp. 359-368 ◽  
Author(s):  
M. Scheuerer ◽  
M. Heitsch ◽  
F. Menter ◽  
Y. Egorov ◽  
I. Toth ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document