scholarly journals Quality of Protection Evaluation of Security Mechanisms

2014 ◽  
Vol 2014 ◽  
pp. 1-18 ◽  
Author(s):  
Bogdan Ksiezopolski ◽  
Tomasz Zurek ◽  
Michail Mokkas
Keyword(s):  
Traditional Approach ◽  
Multimedia Systems ◽  
Security Measures ◽  
Case Study Analysis ◽  
System Protection ◽  
Quality Of Protection ◽  
Model Preparation

Recent research indicates that during the design of teleinformatic system the tradeoff between the systems performance and the system protection should be made. The traditional approach assumes that the best way is to apply the strongest possible security measures. Unfortunately, the overestimation of security measures can lead to the unreasonable increase of system load. This is especially important in multimedia systems where the performance has critical character. In many cases determination of the required level of protection and adjustment of some security measures to these requirements increase system efficiency. Such an approach is achieved by means of the quality of protection models where the security measures are evaluated according to their influence on the system security. In the paper, we propose a model for QoP evaluation of security mechanisms. Owing to this model, one can quantify the influence of particular security mechanisms on ensuring security attributes. The methodology of our model preparation is described and based on it the case study analysis is presented. We support our method by the tool where the models can be defined and QoP evaluation can be performed. Finally, we have modelled TLS cryptographic protocol and presented the QoP security mechanisms evaluation for the selected versions of this protocol.

Progressive Collapse Approach Compared to the Traditional Temperature Screening on Structural Assessment of Offshore Structures Against Fire

2016 ◽  
Author(s):  
Paula T. Nascimento ◽  
Marco A. P. Rosas ◽  
Leonardo Brandão ◽  
Fernando Castanheira
Keyword(s):  
Traditional Approach ◽  
Progressive Collapse ◽  
Screening Method ◽  
Substantial Reduction ◽  
Cost Savings ◽  
Offshore Structures ◽  
Significant Cost ◽  
Fire Scenarios

The present study compares the progressive collapse approach with the traditional temperature screening method on determination of PFP requirements at topside offshore structures. The advantage to evaluate the consequences of fire scenarios on the global integrity and stability of topside modules can be revealed by a substantial reduction of the required amount of PFP, and consequently significant cost savings for operators, when compared to the traditional approach. In the case study presented in this paper, there is a reduction of 79% in PFP allocation.

‘Death by Twitter’: Understanding false death announcements on social media and the performance of platform cultural capital

First Monday ◽  
2019 ◽  
Author(s):  
Bjorn Nansen ◽  
Dominic O'Donnell ◽  
Michael Arnold ◽  
Tamara Kohn ◽  
Martin Gibbs
Keyword(s):  
Social Media ◽  
Cultural Capital ◽  
Study Analysis ◽  
Online Identity ◽  
Case Study Analysis ◽  
Public Figures ◽  
Digital News ◽  
Cultural Responses

In this paper, we analyse false death announcements of public figures on social media and public responses to them. The analysis draws from a range of public sources to collect and categorise the volume of false death announcements on Twitter and undertakes a case study analysis of representative examples. We classify false death announcements according to five overarching types: accidental; misreported; misunderstood; hacked; and hoaxed. We identify patterns of user responses, which cycle through the sharing of the news, to personal grief, to a sense of uncertainty or disbelief. But we also identify more critical and cultural responses to such death announcements in relation to misinformation and the quality of digital news, or cultures of hoax and disinformation on social media. Here we see the performance of online identity through a form that we describe, following Bourdieu as ‘platform cultural capital’.

scholarly journals The Effect of the Size of Traffic Analysis Zones on the Quality of Transport Demand Forecasts and Travel Assignments

2018 ◽  
Author(s):  
Mehmet Fatih Altan ◽  
Yunus Emre Ayözen
Keyword(s):  
Regression Model ◽  
Traffic Analysis ◽  
Model Parameters ◽  
The Public ◽  
Employment Density ◽  
Exponential Regression Model ◽  
Demand Forecasts

In this work we have studied the selection criteria for traffic analysis zones and the effects of their size and number on the model’s forecasting capabilities. To do so we have focused on the corridor of İstanbul’s Kadıköy-Kartal Metro Line and evaluated the consistency of demand forecasts and travel assignments versus actual measurements under different sizes of the Traffic Analysis Zones (TAZ). Significant improvements in model accuracy were observed by decreasing the zone size. Specifically, studying the public transport network assignments for the metro line when increasing the number of traffic analysis zones from 540 to 1,788 the root mean square error (RMSE) of forecasted vs. actual station-based counts was reduced by 23%. Subsequently, the study used population density and employment density as independent variables for the determination of the optimal radius for the 1,788 zone area, and applied an exponential regression model. Appropriate model parameters were derived for the above case study. The regression model resulted in R2 values over 0.62.

A CASE STUDY IN PARTICIPATORY PRIORITY SETTING FOR A SCANDINAVIAN RESEARCH PROGRAM

2006 ◽  
Vol 05 (01) ◽  
pp. 65-88 ◽  
Author(s):  
AHTI SALO ◽  
JUUSO LIESIÖ
Keyword(s):  
Research Program ◽  
Collaborative Research ◽  
Research Priorities ◽  
Societal Needs ◽  
Forest Industries ◽  
Science And Technology Policies ◽  
Technology Policies

Continuing attempts to align science and technology policies with industrial and societal needs have aroused interest in the determination of research priorities. In this paper, we report a case study where leading experts from industry and public administration were assisted by multicriteria decision analysis in the planning of a collaborative research program for Scandinavian forestry and forest industries. We also address processual and methodological challenges in the deployment of multicriteria methods, and argue that such methods can contribute to the quality of decision support processes in related contexts.

scholarly journals Cost Of Treatment Tonsilektomi Di Instalasi Bedah Sentral Rsud Kajen Kabupaten Pekalongan Tahun 2015

2016 ◽  
Vol 4 (3) ◽  
pp. 232-241
Author(s):  
Imam Prasetyo ◽  
Sudiro Sudiro ◽  
Chriswardani Suryawati
Keyword(s):  
Clinical Pathway ◽  
Public Hospital ◽  
Unit Cost ◽  
Activity Based Costing ◽  
Type C ◽  
Rate Calculation

Tariff of services at Kajen Public Hospital charged on general patients was calculated based on operational costs like cost of medical services, consumables, medicines, treatment class, and rental cost of surgery room. Unfortunately, all components of costs for tonsillectomy treatment had not been included. Determination of the tariff had not calculated indirectly costs. Tariff of tonsillectomy treatment at the Kajen Public Hospital at inpatient room based on a local regulation Number 1 year 2012 was Rp 3,275,000 for class 3 whereas tariff for claim of BPJS at the same class at a regional hospital type C was Rp 1,767,900. In this case, there was any difference between costs that had to be spent for tonsillectomy treatment and claim from BPJS. Each cost must be calculated in accordance with clinical pathway to determine unit cost in order to provide high-quality of services. The aim of this study was to figure out amount of unit cost based on clinical pathway on tonsillectomy diagnosis at the Kajen Public Hospital. This was an observational analytic study by conducting a case study at the Kajen Public Hospital. Clinical pathway was arranged through meeting of a drafting team. A calculation of unit cost was performed using a method of Activity Based Costing (ABC), determination of exceeding cost. The results of clinical pathway arrangement showed that steps of tonsillectomy diagnosis pathway were as follows: admission, diagnostic, therapy, and follow up. Unit cost of tonsillectomy diagnosis based on the ABC calculation was Rp 2,717,662. The results of cost recovery rate calculation demonstrated that CRR among general patients was 121% whereas among BPJS patients was 65%. It means that each general patient of the Kajen Public Hospital obtained surplus as many as 21% otherwise each BPJS patient obtained minus as many as 35%. Arrangement of clinical pathway and implementation of final clinical pathway could be used as quality control of the Kajen Public Hospital. The hospital management needs to trace costs, to monitor, and to evaluate the obedience of clinical pathway.

scholarly journals The Need for a Robust Review System to Improve the Quality of Environmental Impact Statements: An Indian Case Study Analysis

2021 ◽  
pp. 38-49
Author(s):  
A. K. A. Rathi
Keyword(s):  
Environmental Impact ◽  
Appraisal System ◽  
Review System ◽  
Good Practices ◽  
Case Study Analysis ◽  
Environmental Impact Statements ◽  
Final Output ◽  
Review Mechanism

Environmental impact assessment (EIA) report, the final output of the EIA process forms the basis for environmental impact statement (EIS) review and decision-making, implying the need for its good quality. This empirical study is based on the literature review, opinions of EIA consultants, and views of experts associated with the EIA system in India. It is inferred that the overall quality of the EIS is below par and there are several inadequacies in the EIA appraisal system. Given the strong correlation between a robust EIS review system and a good quality EIS, a two-tier structured, transparent, and criteria-based review mechanism based on good practices is suggested. Further, it is crucial to adopt a professional approach for appraisal and capacity building of the professionals engaged in conducting the EIA and reviewing the EIS.

scholarly journals Using Generic Inductive Approach in Qualitative Educational Research: A Case Study Analysis

2016 ◽  
Vol 5 (2) ◽  
pp. 129 ◽  
Author(s):  
Lisha Liu
Keyword(s):  
Educational Research ◽  
Empirical Studies ◽  
Research Strategy ◽  
Case Study Analysis ◽  
Inductive Approach ◽  
Theoretical Support ◽  
English Major ◽  
Effective Use

<p>Qualitative research strategy has been widely adopted by educational researchers in order to improve the quality of their empirical studies. This paper aims to introduce a generic inductive approach, pragmatic and flexible in qualitative theoretical support, by describing its application in a study of non-English major undergraduates’ English learning transition from school to university in China. Through an analysis of how this case study was conducted, the main features of the generic inductive approach are discussed in detail. Subsequently, some suggestions for its effective use are put forward so that this approach can help to provide meaningful interpretive power to make sense of the findings in educational research.</p>

Building a Path for Future Communities

2009 ◽  
pp. 313-332 ◽  
Author(s):  
Jeff Axup
Keyword(s):  
Community Development ◽  
Cultural Values ◽  
Communication Technologies ◽  
Emergent Behavior ◽  
Mobile Technologies ◽  
Mobile Community ◽  
Group Members

With mobile technologies increasingly weaving themselves into the fabric of our communities, it would be beneficial to increase our understanding of how these devices will affect our quality of life. This chapter presents a case study where a set of prototypes of future social technology concepts were generated and used by groups of backpackers in a mobile community. One of these concepts, which facilitated viewing the locations of other group members, is evaluated with regard to how it might affect community development. This and other examples illustrate that communication technologies form a social path which guides individual and emergent behavior of societies. Determination of where these paths lead can be accomplished through the creation of development projects with positive social aims. Using collaborative research methods, considering design outcome spectra, and adding features with implicit cultural values are promising strategies for influencing future communities.

Quality of Resilient Cities, the Issue of Urban Waste

2016 ◽  
pp. 197-223
Author(s):  
Elzbieta Dagny Rynska ◽  
Anna Teresa Oniszk-Poplawska ◽  
Urszula Kozminska
Keyword(s):  
Urban Areas ◽  
Construction Waste ◽  
Industrial Plants ◽  
Case Study Analysis ◽  
European Guidelines ◽  
Other Substances ◽  
Explosion Impacts ◽  
Environmental Burdens

This chapter focuses on the metabolic concept for the management and treatment of construction waste and organic fraction of municipal solid waste in urban areas. Analysis of related Dutch, German and Polish guidelines for environmental zoning of industrial plants, allows formulation of conditions for an optimal siting of waste infrastructure within urban unit. Protection zones are defined in accordance with specific requirements for waste facilities, which treat and recycle both municipal and construction waste. Distances from inhabited areas are related to environmental burdens generated by such facilities (incl. parameters such as odours, noise level, explosion impacts and emissions of other substances). Moreover, this chapter provides the analysis of a selected case studies of waste facilities processing. A comparison of European guidelines and implementation of practical solutions is described in the case study analysis, including the issues open for the discussion about sustainable siting for waste processing infrastructure within an urban unit.

Quality of Resilient Cities, the Issue of Urban Waste

2020 ◽  
pp. 228-249
Author(s):  
Elzbieta Dagny Rynska ◽  
Anna Teresa Oniszk-Poplawska ◽  
Urszula Kozminska
Keyword(s):  
Urban Areas ◽  
Construction Waste ◽  
Industrial Plants ◽  
Case Study Analysis ◽  
European Guidelines ◽  
Other Substances ◽  
Explosion Impacts ◽  
Environmental Burdens

This chapter focuses on the metabolic concept for the management and treatment of construction waste and organic fraction of municipal solid waste in urban areas. Analysis of related Dutch, German and Polish guidelines for environmental zoning of industrial plants, allows formulation of conditions for an optimal siting of waste infrastructure within urban unit. Protection zones are defined in accordance with specific requirements for waste facilities, which treat and recycle both municipal and construction waste. Distances from inhabited areas are related to environmental burdens generated by such facilities (incl. parameters such as odours, noise level, explosion impacts and emissions of other substances). Moreover, this chapter provides the analysis of a selected case studies of waste facilities processing. A comparison of European guidelines and implementation of practical solutions is described in the case study analysis, including the issues open for the discussion about sustainable siting for waste processing infrastructure within an urban unit.

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