Modern Approaches to Creating Highly Undetectable Stegosystems (HUGO Systems)

2021 ◽  
pp. 164-190
Author(s):  
Vladimir N. Kustov ◽  
Alexey G. Krasnov ◽  
Ekaterina S. Silanteva
Keyword(s):  
Communication Channel ◽  
Communication Channels ◽  
Integrated Approach ◽  
Comprehensive Approach ◽  
Test Results ◽  
Arnold Cat Map ◽  
Highly Efficient ◽  
Natural Noise ◽  
Noise Tolerant

This chapter's primary goal is to provide a comprehensive approach to the development of new highly undetectable stegosystems that greatly complicate their steganalysis. The authors propose several implementations of highly undetectable stegosystems, the so-called HUGO systems, using an integrated approach to their synthesis. This approach most fully considers the features of transmitting hidden messages over highly noisy communication channels. At the stage of embedding hidden messages, the authors suggest actively using their discrete transformations. The authors also propose increasing the secrecy of secret messages by converting them to a form that resembles natural noise. The authors use a discrete chaotic decomposition of the Arnold cat map (ACM) to do this. The authors also suggest using highly efficient noise-tolerant encoding and multi-threshold decoding to combat interference in the communication channel and an embedding algorithm. The authors also describe two original stegosystems ±HUGO and ⨁HUGO and test results confirming their effectiveness.

Biodiesel – An Integrated Approach for a Highly Efficient Biofuel

2011 ◽  
pp. 96-108
Author(s):  
J.M. Bergthorson ◽  
L. Kunst ◽  
D.B. Levin ◽  
P.B.E. McVetty ◽  
D.L. Smith ◽  
...  
Keyword(s):  
Integrated Approach ◽  
Highly Efficient

Communication and Teleworking: A Study of Communication Channel Satisfaction, Personality, and Job Satisfaction for Teleworking Employees

2015 ◽  
Vol 55 (1) ◽  
pp. 44-68 ◽  
Author(s):  
Stephanie A. Smith ◽  
Alyssa Patmos ◽  
Margaret J. Pitts
Keyword(s):  
Job Satisfaction ◽  
Communication Channel ◽  
Online Survey ◽  
Communication Channels ◽  
Personality Types ◽  
Video Communication ◽  
Communication Satisfaction ◽  
Moderating Effects ◽  
The Relationship ◽  
Practical Implications

This study examines teleworkers’ job satisfaction related to the use of and satisfaction with a variety of communication channels and workers’ personality type. U.S. teleworkers ( N = 384) completed an online survey and self-reported on dimensions of communication channel satisfaction, job satisfaction, and personality. Results indicated that extraversion, openness, agreeableness, and conscientiousness are positively correlated with job satisfaction. Additionally, significant moderating effects were found for the relationship between openness and phone and video communication, and agreeableness and phone communication on job satisfaction. Findings from this study yield important practical implications for organizations including suggestions for optimizing communication satisfaction for employees of differing personality types and recommendations to help organizations effectively hire and retain teleworkers.

scholarly journals Integrated approach to risk assessment of potential surface radioactive waste storage

2019 ◽  
Vol 95 (2) ◽  
pp. 133-139
Author(s):  
I. P. Korenkov ◽  
Tatyana N. Lashchenova ◽  
N. K. Shandala ◽  
V. V. Romanov
Keyword(s):  
Radioactive Waste ◽  
Potential Surface ◽  
Integrated Approach ◽  
Comprehensive Approach ◽  
Potential Danger ◽  
Management Decisions ◽  
Near Surface ◽  
Waste Storage ◽  
Radioactive Waste Repositories ◽  
Waste Repositories

Algorithm for management of decision-making on the decommissioning of nuclear and radiation hazardous objects (RHO) should be both based on an comprehensive approach, with taking into account all the potential dangers, and relied upon on the requirements of a modern regulatory framework, as well as economically sound and socially oriented. The aim of the work was a development of a comprehensive approach to the assessment of the degree of the potential danger of near surface radioactive waste repositories in RHO, on the base of which it is possible to make substantiated management decisions for their decommissioning. Tasks: To develop an array of radio-ecological approaches, including radiation-hygienic, hydrogeological and engineering criteria for the assessment of the potential danger of radioactive waste repositories. Results There are presented radiation hygienic, hydrogeological and engineering and technical criteria on the basis of which there are calculated coefficients of the relative hazard of storages. In dependence to the value of the coefficients there are suggested four categories of danger - a safe, low dangerous, dangerous and very dangerous. There are elaborated approaches on management decisions-making in various variants of decommissioning - the conversion, renovation, conservation and liquidation.

scholarly journals Patterns of Patients’ Interactions With a Health Care Organization and Their Impacts on Health Quality Measurements: Protocol for a Retrospective Cohort Study (Preprint)

2018 ◽  
Author(s):  
Arriel Benis ◽  
Nissim Harel ◽  
Refael Barak Barkan ◽  
Einav Srulovici ◽  
Calanit Key
Keyword(s):  
Health Care ◽  
Data Analysis ◽  
Communication Channel ◽  
Clustering Algorithm ◽  
Health Care Organizations ◽  
Health Care Organization ◽  
Communication Channels ◽  
Care Organization ◽  
Care Providers ◽  
Different Types

BACKGROUND Data collected by health care organizations consist of medical information and documentation of interactions with patients through different communication channels. This enables the health care organization to measure various features of its performance such as activity, efficiency, adherence to a treatment, and different quality indicators. This information can be linked to sociodemographic, clinical, and communication data with the health care providers and administrative teams. Analyzing all these measurements together may provide insights into the different types of patient behaviors or more accurately to the different types of interactions patients have with the health care organizations. OBJECTIVE The primary aim of this study is to characterize usage profiles of the available communication channels with the health care organization. The main objective is to suggest new ways to encourage the usage of the most appropriate communication channel based on the patient’s profile. The first hypothesis is that the patient’s follow-up and clinical outcomes are influenced by the patient’s preferred communication channels with the health care organization. The second hypothesis is that the adoption of newly introduced communication channels between the patient and the health care organization is influenced by the patient’s sociodemographic or clinical profile. The third hypothesis is that the introduction of a new communication channel influences the usage of existing communication channels. METHODS All relevant data will be extracted from the Clalit Health Services data warehouse, the largest health care management organization in Israel. Data analysis process will use data mining approach as a process of discovering new knowledge and dealing with processing data extracted with statistical methods, machine learning algorithms, and information visualization tools. More specifically, we will mainly use the k-means clustering algorithm for discretization purposes and patients’ profile building, a hierarchical clustering algorithm, and heat maps for generating a visualization of the different communication profiles. In addition, patients’ interviews will be conducted to complement the information drawn from the data analysis phase with the aim of suggesting ways to optimize existing communication flows. RESULTS The project was funded in 2016. Data analysis is currently under way and the results are expected to be submitted for publication in 2019. Identification of patient profiles will allow the health care organization to improve its accessibility to patients and their engagement, which in turn will achieve a better treatment adherence, quality of care, and patient experience. CONCLUSIONS Defining solutions to increase patient accessibility to health care organization by matching the communication channels to the patient’s profile and to change the health care organization’s communication with the patient to a highly proactive one will increase the patient’s engagement according to his or her profile. INTERNATIONAL REGISTERED REPOR RR1-10.2196/10734

Adoption of Social Media as Communication Channels in Government Agencies

2018 ◽  
pp. 773-807
Author(s):  
Reemiah Alotaibi ◽  
Muthu Ramachandran ◽  
Ah-Lian Kor ◽  
Amin Hosseinian-Far
Keyword(s):  
Social Media ◽  
Communication Channel ◽  
Communication Channels ◽  
Extensive Literature ◽  
Public Agencies ◽  
Wide Range ◽  
Level Of Use ◽  
The World ◽  
The Government ◽  
Use Of Social Media

Social media has become an integral part of many people's lives around the world. The main use of this communication channel is to connect with social circles. It is also widely used for commercial and business purposes. Governments are also keen to use social media as an alternative to the traditional communication channels. Nonetheless, when the level of use of social media in the government is compared to other fields, a clear gap becomes apparent. This chapter investigates the adoption of social media as a communication channel between citizens, public agencies and government departments; and considers a wide range of factors that affect the issue from the perspective of public agencies. This chapter presents an extensive literature review and proposes a framework that organises the critical factors that affect public agencies' efforts while implementing social media. We also provide a list of hypotheses to validate and evaluate the significance of these factors.

How to promote chemical literacy? On-line question posing and communicating with scientists

2020 ◽  
Vol 21 (1) ◽  
pp. 250-266
Author(s):  
Zehavit Kohen ◽  
Orit Herscovitz ◽  
Yehudit Judy Dori
Keyword(s):  
Science Education ◽  
Scientific Literacy ◽  
Communication Channel ◽  
Focal Point ◽  
Communication Channels ◽  
Chemistry Teachers ◽  
Stakeholder Groups ◽  
Stem Students ◽  
On Line ◽  
Current Science

Facilitating students' chemical literacy is a focal point of current science education. This study examines views of chemists and chemistry teachers on chemical literacy and, more broadly, on scientific literacy of four kinds of stakeholders: scientists, teachers, STEM students, and the educated public. We explored the views of 347 participants, representing the four stakeholder groups with diversified scientific literacy, and an Ask-a-Scientist public website as a communication channel for facilitating chemical literacy through posing questions. Research tools included interviews, open-ended questionnaires, and questions retrieved from the website. We found that the questions posed on the website expressed a range of levels of chemical literacy that the students had constructed. The stakeholder groups expressed diverse perspectives of their experiences using various types of communication channels, arguing for the need to encourage students to pose questions and receive scientists' responses. Our study is placed in the larger context of scientific literacy and communication channels, as it takes the example of chemical literacy, with a focus on communications among scientists and chemistry teachers in the context of an Ask-a-Scientist website. It has established a link between responses of various stakeholders and the literature definitions regarding scientific literacy with focus on chemical literacy. From a practical viewpoint, the study presents a productive communication channel for posing questions in the context of chemistry and other sciences. Methodologically, this study includes the design of tools for analyzing both the views of different stakeholders and for evaluating the complexity level of chemistry questions, which might serve chemistry educators.

Biodiesel – An Integrated Approach for a Highly Efficient Biofuel

2011 ◽  
pp. 87-99
Author(s):  
J.M. Bergthorson ◽  
L. Kunst ◽  
D.B. Levin ◽  
P.B.E. McVetty ◽  
D.L. Smith ◽  
...  
Keyword(s):  
Integrated Approach ◽  
Highly Efficient

How Anonymity and Visibility Affordances Influence Employees’ Decisions About Voicing Workplace Concerns

2018 ◽  
Vol 33 (2) ◽  
pp. 160-188 ◽  
Author(s):  
Chang M. Mao ◽  
David C. DeAndrea
Keyword(s):  
Communication Channel ◽  
Communication Channels ◽  
Future Research ◽  
Research Directions ◽  
Safety And Efficacy ◽  
Future Research Directions ◽  
Practical Implications ◽  
Prohibitive Voice

Employees can provide invaluable input to organizations when they can freely express their opinions at work. Employees, however, may not believe that it is safe or efficacious to voice their concerns. How features of communication channels affect employees’ safety and efficacy perceptions is largely ignored in existing voice models. Therefore, this study seeks to understand how the anonymity and visibility affordances of a communication channel influence employees’ safety and efficacy perceptions, and, thus, their intention to engage in prohibitive voice at work. Two between-subjects experiments were conducted to test how these channel affordances affect voicing behavior in organizations. The results indicate that the more anonymous and less visible participants perceive a voicing channel to be, the safer and the more efficacious they evaluate the channel. Theoretical and practical implications, limitations, and future research directions are discussed.

Estimating liquefaction-induced ground settlements from CPT for level ground

2002 ◽  
Vol 39 (5) ◽  
pp. 1168-1180 ◽  
Author(s):  
G Zhang ◽  
P K Robertson ◽  
R W.I Brachman
Keyword(s):  
Integrated Approach ◽  
Test Results ◽  
Liquefaction Resistance ◽  
Laboratory Test Results ◽  
Medium Risk ◽  
Major Factors ◽  
Treasure Island ◽  
Silty Soils ◽  
Ground Settlements

An integrated approach to estimate liquefaction-induced ground settlements using CPT data for sites with level ground is presented. The approach combines an existing CPT-based method to estimate liquefaction resistance with laboratory test results on clean sand to evaluate the liquefaction-induced volumetric strains for sandy and silty soils. The proposed method was used to estimate the settlements at both the Marina District and Treasure Island sites damaged by liquefaction during the Loma Prieta, California, earthquake on 17 October 1989. Good agreement between the calculated and measured liquefaction-induced ground settlements was found. The major factors that affect the estimation of liquefaction-induced ground settlements are also discussed in detail. The recommendations for taking the effects of these factors into account in estimating liquefaction-induced ground settlements using the proposed CPT-based approach are presented. It is suggested that the proposed method may be used to estimate liquefaction-induced settlements for low- to medium-risk projects and also to provide preliminary estimates for higher risk projects.Key words: liquefaction, settlements, earthquake, sand, in situ testing.

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