scholarly journals Analysis and development trends of devices for finding illegal means of obtaining information

2020 ◽  
Vol 44 (4) ◽  
Author(s):  
О. М. Kikot ◽  
◽  
А. М. Pravdyvyi ◽  
S. V. Kornienko ◽  
F. O. Ozerinin ◽  
...  
Keyword(s):  
Present Stage ◽  
Hidden Information ◽  
Digital Radio ◽  
Standard Means ◽  
Data Channel ◽  
Digital Transmitter ◽  
Automated Software ◽  
Regional Design ◽  
Element Base ◽  
Automated Search

This article raises the issue of leakage or loss of information, which can lead to material damage or catastrophic consequences. The analysis of search devices of secret reception means of information different on the principle of work, and methods of search of secret reception means of information is carried out. According to the analysis, we can conclude that the process of finding means of covert receipt of information at the present stage of society qualitatively development goes to another level. Therefore, the search methods and equipment used for this need to be improved, and the problem of analyzing the means of finding means of covert information in order to identify trends and develop modern requirements for them becomes relevant. Methods of concealing the work of secret means of obtaining information used in their development are studied. It should be noted that today it is much easier to make a digital transmitter, using the modern element base of standard means of communication, than to create and configure an "analog" bookmark on a transistor with positive feedback. That is why the possibilities of modern means of obtaining information secretly are influenced by the latest and promising technologies. The latest means of covert information retrieval (radio bookmarks) have the ability to use a variety of methods to hide the data channel, which significantly complicates the process of finding them. In particular, in the case of their use of combined methods of hiding the data channel. Taking into account the latest developments in the field of hidden information, a complete methodological set of requirements for regional design and creation of modern automated search systems, which, in turn, fully meet the process of modern automated search of digital radio bookmarks. These requirements can be used as a technical task in the design of automated software for searching digital radio bookmarks.

SIMULATOR ERROR STREAM IN THE DATA CHANNEL WHEN RECEIVING BINARY DIGITAL RADIO SIGNALS

2019 ◽  
Vol 12 (2) ◽  
pp. 59-65
Author(s):  
В. Лавлинский ◽  
V. Lavlinskiy ◽  
Юрий Громов ◽  
Yuriy Gromov ◽  
Ирина Дидрих ◽  
...  
Keyword(s):  
Data Transmission ◽  
Data Exchange ◽  
Radio Channel ◽  
Flow Simulation ◽  
Phenomenological Approach ◽  
Digital Signals ◽  
Digital Radio ◽  
Data Channel ◽  
Radio Signals ◽  
Flow Simulator

Based on the phenomenological approach, a simulator of the error flow in the sequence of data transmitted over the radio channel is developed. The proposed version of the simulator takes into account the features of coherent and incoherent reception of the most common binary digital signals with relative phase and frequency manipulation. Within the framework of data transmission modeling, the adequacy of the results and the possibility of using the considered method of error flow simulation are fully confirmed. The developed error flow simulator allows to evaluate the potential qualitative characteristics of data transmission and the effectiveness of data exchange protocols using radio channels. At the same time, the simulator implements the connection of the structure and intensity of the generated error flow with the technical characteristics of the data transmission means used and the conditions of communication.

scholarly journals Emergency Communications and Alerting Systems for Fire Brigades in Baden-Württemberg – Much Room for Improvement?

2018 ◽  
Vol 331 ◽  
pp. 479-484
Author(s):  
Eva Gräßle ◽  
Robert Müller-Török
Keyword(s):  
Communication Systems ◽  
New Technology ◽  
Digital Radio ◽  
Standard Means ◽  
Complementary Methods ◽  
Emergency Communications ◽  
Radio Systems ◽  
Alerting Systems ◽  
Police Forces

Most of the fire brigades in Baden-Württemberg are volunteer forces, hence creating the need for readily available and reliable alerting and communication systems for these forces as well. Digital Pagers are the standard means of alerting but, due to their limited reliability, alternative and complementary methods like Apps, SMS, etc. are also used by these volunteer forces. Regarding communication at the scene, the transition from open analogue to encrypted digital radio systems has been on its way for nearly 20 years. As of today, new technology is available for police forces whilst fire brigades still have to use analogue systems. This contribution analyses the situation, past and present, planning and attempts at improvement.

scholarly journals Mentoring Experiences of Aging and Disability Rehabilitation Researchers

2010 ◽  
Vol 2010 ◽  
pp. 1-8
Author(s):  
Mary Egan ◽  
Kerry Byrne ◽  
Paul Stolee ◽  
Judy King
Keyword(s):  
Career Transition ◽  
Career Progression ◽  
Career Stages ◽  
Present Stage ◽  
Hidden Information ◽  
Individual Interviews ◽  
The Third ◽  
Research Institutes ◽  
Research Mentoring ◽  
Practical Information

Objectives. To explore research mentoring experiences and perceived mentoring needs of aging and disability researchers at different career stages.Design. Focus group and individual interviews with rehabilitation researchers at various career stages based in hospitals, universities, and hospital-based research institutes in Ontario, Canada.Results. The overall theme wasmentoring for transition. Participants across career stages referred to helpful mentoring experiences as those that assisted them to move from their previous stage into the present stage or from the present stage into their next career progression. Unhelpful mentoring experiences were characterized by mentor actions that were potentially detrimental to transition. Subsumed under this theme were three categories. The first, “hidden information” referred to practical information that was difficult to access. The second “delicate issues” referred to helping the participant work through issues related to sensitive matters, the discussion of which could put the participants or their colleagues in a vulnerable position. The third category was “special challenges of clinician-researchers”.Conclusions. Helpful mentoring for rehabilitation researchers working on concerns related to aging and disability appears to be characterized by interaction with more experienced individuals who aid the researcher work through issues related to career transition.

Status and development prospects of standard means for reproducing units of volumetric activity of radon and thoron and radon flux density from the soil surface

2020 ◽  
pp. 69-73
Author(s):  
S.G. Birjukov ◽  
O.I. Kovalenko ◽  
A.A. Orlov
Keyword(s):  
Flux Density ◽  
Soil Surface ◽  
National Standards ◽  
Measuring Instruments ◽  
Volumetric Activity ◽  
Standard Means ◽  
Radon Flux ◽  
Technical Solutions ◽  
Development Prospects ◽  
Physical Principles

The approach to creating standard means for reproducing units of volumetric activity of radon and thoron and flux density of radon from the soil surface is described based on the physical principles of reproducing these units of quantities and using as technical means for reproducing bubblers with a radioactive solution of radium salt, reference capacities of known volume, emanation chambers for generation of a toron, a gamma spectrometer with a semiconductor detector from highly pure germanium and radon radiometers. Reproduction consists in the physical realization of units in accordance with their definition as applied to the formation of radon and thoron in the radioactive rows of radium and thorium. The proposed approach will allow to determine the structural, structural and other technical solutions of standard measuring instruments, as well as specific techniques and methods of working with them. The creation of standard tools and technologies for reproducing units of volumetric activity of radon and thoron and the density of radon flux from the soil surface will ensure the unity and reliability of measurements in the field of ionizing radiation, traceability of units and bringing the characteristics of national standards in line with world achievements.

Clinical and epidemiological picture of syphilitic infection at present stage

2019 ◽  
Vol 1 (7) ◽  
pp. 42-45
Author(s):  
A. A. Bagirova ◽  
K. M. Lomonosov
Keyword(s):  
Nervous System ◽  
Statistical Analysis ◽  
Blood Vessels ◽  
Case Histories ◽  
Present Stage ◽  
Anatomical Changes

A statistical analysis of the syphilis incidence in Moscow and regions from 2006 to 2017 was carried out. Despite a decrease in the general syphilis incidence an increase in incidence of such severe forms as late neurosyphilis and cardiovascular syphilis was observed. We analyzed 1,600 archive case histories of inpatients and outpatients of the Sechenov University clinics in Moscow and identified the specific lesions in heart tissues, blood vessels and the nervous system. in literal data a relatively small number of cardiosyphilis cases was described. it can be explained by the fact that earlier only gummas, that are rarely to be located in the heart and difficult to be identified clinically, were considered to be the only specific pathological and anatomical changes for syphilis of the heart.

COMBINATORIAL POLYNOMIALLY COMPUTABLE CHARACTERISTICS OF SUBSTITUTIONS AND THEIR PROPERTIES

2020 ◽  
Vol 7 (2) ◽  
pp. 34-41
Author(s):  
VLADIMIR NIKONOV ◽  
◽  
ANTON ZOBOV ◽  
Keyword(s):  
Mathematical Expectation ◽  
Point Of View ◽  
Small Range ◽  
Computational Point ◽  
Wide Range ◽  
Bijective Function ◽  
The Difference ◽  
Element Base ◽  
Selection Of

The construction and selection of a suitable bijective function, that is, substitution, is now becoming an important applied task, particularly for building block encryption systems. Many articles have suggested using different approaches to determining the quality of substitution, but most of them are highly computationally complex. The solution of this problem will significantly expand the range of methods for constructing and analyzing scheme in information protection systems. The purpose of research is to find easily measurable characteristics of substitutions, allowing to evaluate their quality, and also measures of the proximity of a particular substitutions to a random one, or its distance from it. For this purpose, several characteristics were proposed in this work: difference and polynomial, and their mathematical expectation was found, as well as variance for the difference characteristic. This allows us to make a conclusion about its quality by comparing the result of calculating the characteristic for a particular substitution with the calculated mathematical expectation. From a computational point of view, the thesises of the article are of exceptional interest due to the simplicity of the algorithm for quantifying the quality of bijective function substitutions. By its nature, the operation of calculating the difference characteristic carries out a simple summation of integer terms in a fixed and small range. Such an operation, both in the modern and in the prospective element base, is embedded in the logic of a wide range of functional elements, especially when implementing computational actions in the optical range, or on other carriers related to the field of nanotechnology.

Assessment of a semi-automated software program for the identification of vertebral fractures in children

2017 ◽  
Author(s):  
Fawaz Alqahtani ◽  
Fabrizio Messina ◽  
Elzene Kruger ◽  
Heerunpal Gill ◽  
Michael Ellis ◽  
...  
Keyword(s):  
Vertebral Fractures ◽  
Fractures In Children ◽  
Software Program ◽  
Automated Software

Thèmes et variations Réflexions stylistiques sur l’itinéraire d’Égérie

2020 ◽  
Vol 59 (1-4) ◽  
pp. 611-621
Author(s):  
Sára Horváthy
Keyword(s):  
Social Changes ◽  
The South ◽  
Hidden Information ◽  
The Bible ◽  
The Social

SummaryEgeria, a 4th century pious woman from the south of present-day Spain, retold, after visiting Palestine with the Bible in hand, her observations to her sisters. If the linguistic aspects of her letters are quite well-known, much less is known about its stylistic value, inappropriately called “simple”.What seems to be boringly the same again and again, is in fact a constantly renewed and perfectly mastered “variation on a theme”, just as in a well-composed piece of music. Her apparent objectivity is indeed a wish to focus on what she considers the most important, namely to tell her community, as closely to reality as possible, what she observed during her pilgrimage. However, Egeria’s latin is also a testimony of the christian lexicon in construction and of the social changes that were in progress by that time.Linguistics and stylistics work together here, the choice of a word or a grammatical formula reveals hidden information about the proper style of an author who, despite her supposed objectivity, had real personal purposes.

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