bluuebunny/crossref_metadata_2025 huggingface dataset:
A Make-or-buy Decision Process for Outsourcing
Authors: Bajec Patricija , Jakomin Igor
Published: March 2012

Should firms perform logistics services on their own or should they buy them from a logistics provider? Today’s global competition forces companies to re-evaluate their existing processes, technologies and services in order to focuse on strategic activities. Outsourcing is now increasingly used as a competitive weapon in today’s economy. External parties can often do job quicker, cheaper and better. This has resulted in an increasing awareness of the importance of the make-or-buy decision, the dilemma organisations face when deciding between keeping logistics services in house or purchasing them from an outside logistics provider.
This article provides a make-or-buy decision process methodology that any manager can implement – whatever the size or industrial type of the organization. The make-or-buy methodology is one of the most critical strategic decisions within logistics outsourcing and should be taken in a structured and consistent manner. A practical guide to this decision is a step-by-step guide to addressing make-or-buy decision in a consistent and structured manner. The high-level steps are as follows:
• evaluate whether outsourcing is right for your company;
• determine exactly what functions to outsource and the performance expectations;
• use a well-defined professional selection process to evaluate and select which provider(s) are right for the job.
KEY WORDS: logistics, logistics outsourcing, make-or-buy decision, outsourcing methodology
Forecasting Intermodal Transport Requirements on Corridor X
Authors: Brnjac Nikolina , Abramović Borna , Maslarić Marinko
Published: March 2012

The increase of market share of railway in cargo transport on Corridor X is considered a precondition in order to make railway operation cost-effective and commercially attractive to private operators. Railway sector has suffered damage during the war and the infrastructure needs modernization in order to create efficient and environmentally-friendly transport modes. The intervention is necessary in order to allow the railway network to be successful in the corridor competition. The forecasting model would be used to forecast the requirements for intermodal transport by the year 2018 on Corridor X using forecasting model for the future of the development of cargo transport requirements on Corridor X.
KEY WORDS: intermodal transport, cargo flows, transport forecast
Selecting the Location of a Nautical Tourism Port by Applying PROMETHEE And GAIA Methods
Case Study – Croatian Northern Adriatic
Authors: Kovačić Mirjana
Published: March 2012

In this paper, the author presents the multi-criteria analysis methods, PROMETHEE I and II and GAIA, used for selecting the location of a nautical tourism port. In an example of the selected location of a nautical tourism port in the Northern Adriatic, the author has used an analytic and graphical evaluation for solving such a problem. Particular attention has been paid to the use of GAIA method, which is suitable for visualisation of the problem characteristics through geometrical interpretation and presentation of the results of a multi-criteria analysis. By application of the described methods, it is possible to establish the most acceptable location considering the principles of sustainable development. The paper emphasises the importance of applying multi-criteria analysis and multi-criteria use of selected methods, which contain criteria and sub-criteria for selecting the optimal location of a nautical tourism port. In the paper the results of the research “Criteria for selecting the location of a nautical tourism port” conducted during 2006/2007 have been used.
KEY WORDS: nautical tourism port, selecting the location, multi-criteria analysis
Collaborative Behaviour as a Facilitator of Integration of Logistic and Marketing Functions – The Case of Slovene Retailers
Authors: Topolšek Darja , Čižman Anton , Lipičnik Martin
Published: March 2012

Collaborative behaviour and various aspects of comparing collaboration with coordination and cooperation present the basis for more detailed assumptions concerning the importance of integrating logistic function with the marketing function. The collaborative behaviour dimension of inter-functional integration presents a system of mutual visions, decision-making and collective responsibility to provide results, services or a product. Logisticians often define integration within the framework of the supply chain, yet they neglect the internal integration or the integration between individual departments or functions in a company. Defining internal integration and its level as well as the connection with the level of collaborative behaviour is the basis of the research part of this paper. The quantitative research part studies whether and to what extent collaborative behaviour influences the level of internal integration between logistic and marketing functions. The research is based on a quantitative analysis of results of the survey that was conducted in Slovene retail companies.
KEY WORDS: logistics, marketing, logistic function, marketing function, internal integration, collaborative behaviour, inter-functional relations
Application of RFID in Aviation Industry: An Exploratory Review
Authors: Mishra Alok , Mishra Deepti
Published: March 2012

Recently, Radio Frequency Identification (RFID) has received considerable attention and is considered to be the next wave of information technology revolution. The number of RFID applications in different industries is increasing continuously. Cumulative sales of RFID tag is up in 2006 which shows RFID adoption trend in industries to improve their efficiency of operations and to gain a competitive advantage. In the aviation industry, major airports, airlines have been also planning the RFID adoption in baggage handling and customer services areas for a long time. Many pilot tests have been performed at various airports and RFID tags were found to be far more precise along with better performance than bar codes. This paper provides a review on RFID systems, associated technology, advantages, limitations and applications in various fields. Further, this paper reports the preliminary review of state of RFID adoption planning, architecture and implementation plan in a major airline, focusing on improved baggage handling, increased airport/airline security and customer services.
KEYWORDS: aviation, airline, baggage handling, customer-service, Radio Frequency Identification (RFID)
Meteorological Navigation and ECDIS
Authors: Vidan Pero , Kasum Josip , Zujić Marijan
Published: March 2012

In maritime traffic, a route is one or more known tracks along which navigation takes place or there is intention to sail. Meteorological factors are important if the route exceeds the distance of 1500M [1]. Meteorological navigation is the selection of a navigational route in view of meteorological factors and control of vessel during heavy weather conditions and safe navigation aimed at the protection of human lives, vessels and cargo during heavy weather. The paper proposes a model of grouping and evaluating estimates of meteorological factors when planning meteorological navigation. It is advised to upgrade the Electronic Chart Display and Information System – ECDIS program with the aim of allowing for the computer planning of meteorological navigation.
KEY WORDS: planning of navigation, meteorology, optimal route, Electronic Chart Display and Information System - ECDIS
Geographic and Traffic Aspects of Possibilities for Implementing Ropeway Systems in Passenger Transport
Authors: Nikšić Mladen , Gašparović Slaven
Published: March 2012

The paper studies the ropeways as a special subgroup of land traffic system from the interdisciplinary aspect of the traffic sciences and geography. The ropeways have seen a propulsive technical and technological development over the last several decades. Therefore, the paper gives an overview of the types of ropeways with special emphasis on the technologically most advanced ropeways. Regarding the lack of studies on the ropeway issues in Croatia, the space distribution of ropeways in the Republic of Croatia has been analysed. The ropeways, as well as other transport modes, affect the space, and since ropeways are considered environmentally friendly traffic modes, their impact on the environment is analysed, both in the mountains and in the cities. Moreover, the economic influence of ropeways on the surrounding area is studied as well.
KEY WORDS: ropeway, surface lift, aerial ropeway, chairlift, gondola, funicular
Optimisation of Signal-controlled Intersection Capacity
Authors: Županović Dino , Anžek Mario , Kos Goran
Published: March 2012

Road traffic safety is a complex system which combines movement of entities in precisely determined space and time dimension. Each of the entities, with their different properties, sets different requirements to road traffic system, including also other entities. Due to the large number of entities and their characteristic requirements, their interaction results in extremely complex relations which determine the behaviour of the road traffic system. The entities are combined according to their common features into certain groups, the movements of which usually result in conflicts. In such situations it is necessary to ensure the movement of a group of entities. This method of insurance necessarily creates negative consequences for all the entities that participate in road traffic system. In order to mitigate as much as possible these consequences, it is necessary to find an adequate method of optimising road traffic system according to a given criterion. The paper uses the results of the analysis of more than 100 road traffic system models and presents the methodology of determining the level of their interconnection. The level of influence of the basic traffic values on the final effect, i.e. the possibility of optimising signal-controlled intersections has been found and described.
KEYWORDS: traffic flow, signalized intersection, pretimedsystem, optimization, 2-phase system, 4-phase system, volume-to-capacity, lost time
Conditions for Implementing Trolleybuses in Public Urban Transport
Authors: Zavada Josip , Blašković Zavada Jasna , Miloš Katica
Published: March 2012

Big cities in the world are burdened by heavy traffic and all the resulting negative consequences. A partial solution of this problem is achieved by the introduction of high-quality public urban transport of passengers that enables faster and more efficient transport. Since the introduction of individual forms of public urban transport depends on several factors, such as economic, traffic, environmental and technical ones, the problem is often a very complex one. The implementation of trolleybuses represents one of the forms of passenger transportation in public urban transport. It is the most favourable electrical vehicle for public urban transport when the implementation of a rail system is not affordable. Looking through history, the trolleybus has experienced significant changes in the implementation, in a large number of world urban environments.
This paper points out the unjustifiable neglect of trolleybus in the implementation for the public urban transport and the renewed increase in the interest for its implementation. The advantages and drawbacks of the trolleybus are listed in relation to buses, as well as the reasons due to which some cities in the world are introducing it or increasing its implementation. The paper also emphasises and provides arguments of the ecological and energy advantages of trolleybuses in relation to buses as crucial in advanced public urban transport of passengers. Also, advanced technical solutions are pointed out that contribute to safer, faster and more comfortable transport of passengers.
KEY WORDS: trolleybus, bus, public urban transport, environment, economics
Combinatorial Neural Networks Based Model for Identification of Marine Steam Turbine Clustered Parameters
Authors: Komadina Pavao , Tomas Vinko , Valčić Marko
Published: March 2012

This paper presents a combinatorial model for the identification and simulation of a certain number of parameters of marine steam turbine plant for LNG tankers based on the classification and approximation neural networks. The model consists of two basic parts. In the first part, parameters are classified in adequate clusters by means of self-organizing neural network, while the combinatorial identification of clusters interrelationship is carried out in the second part by means of static feed-forward neural networks. In the following part, the successfulness of the achieved results is analyzed by generating an adequate rank-list of all identification-simulation models. This approach gives a clear insight into certain cluster interdependences which can significantly contribute in following applications which are based on the estimation and prediction of the lost sensor information not depending on the cause of their loss. Although all of the above is distinctly expressed in marine propulsion control systems, it should be pointed out that in this way significantly increased reliability and redundancy of the sensor information directly reflect on considerable increase in technical security of the whole ship as a floating object.
KEY WORDS: marine steam turbines, marine control systems, neural networks, identification, clusterization
Assessment of a Light Unmanned Aircraft Ground Impact Energy
Authors: Skobir Zmago , Magister Tone
Published: March 2012

The subject of investigation are unmanned aircraft lighter than 150kg under control by national aviation authorities and therefore prudently requiring harmonized individual state regulations. Originated from a general premise that the unmanned aircraft regulations should evolve from the existing standards for manned aircraft of equivalent class or category, the light fixed wing unmanned aircraft equivalence to the manned aircraft is defined in the form of sets of equivalency and non-equivalency based on the established administrative type of methodology of impact kinetic energy comparison. The basic flight characteristics of the existing operational light fixed wing unmanned aircraft are analyzed assuring proper input for determination of the more realistic unmanned aircraft impact kinetic energy in controlled and uncontrolled flight into terrain crash scenarios used for the evaluation of established methodology adequacy for equivalence determination. It is shown in the paper that determination of the unmanned aircraft equivalency to the manned aircraft should not be based on the unmanned aircraft maximum take-off mass nor their airspeed range alone.
KEYWORDS: light unmanned aircraft, impact kinetic energy, hazard potential, classification
Agile Port and Intermodal Transport Operations Model to Secure Lean Supply Chains Concept
Authors: Beškovnik Bojan , Twrdy Elen
Published: March 2012

This article presents a strategic view of industry’s expectations from the lean supply chains concept in relation to the container shipping industry. The global market is putting the shipping industry under strong pressure as new trends in logistics seek new opportunities to cut unnecessary costs and players in the supply chain management and in the intermodal transport. For this reason we performed a research on how the intermodal transport can secure efficient transport operations. The emphasis is mainly on setting up the agile port and intermodal transport model, in which all necessary subjects should be involved in a unique supply chain. Thus we analyzed port operators, shipping lines and inland transport operators and the way they eliminate waste processes in their everyday operation procedure. Considering all important dynamic facts in the container and shipping industry and our analyses of the intermodal service through the port of Koper we propose the agile port and inland operations model suitable to improve intermodal service and to secure lean supply chains for containerized cargo. Consequently, we came to the conclusion that some traditional subjects in the traditional supply chain are not needed; while others, like customs authorities and inspection companies should be involved adequately to secure efficient organization of agile services in the ports, on the borders between different countries and at final destinations.
KEY WORDS: lean supply chains, agile intermodal operations, shipping lines, port operators, inland transport operators
Evaluation of Air Transportation Under Controlled Room Temperature for Pharmaceuticals
Authors: Badurina Gordan , Majić Zvonimir , Pavlin Stanislav
Published: March 2012

Pharmaceutical industry like aviation is one of the most regulated industries today. Shipping pharmaceutical products under defined time and temperature conditions is a challenge deriving from regulatory and product quality aspects. Good distribution practice should be valid throughout the distribution chain but regulatory issues are still short of strength in practice. Transportation should be considered as extended warehousing, still compliances are business rather than regulatory driven. The paper demonstrates deviations between shipping requirements and realistic capabilities of today’s commercial aviation in terms of maintenance of the controlled room temperature. Examples show cases of temperature deviations during transport realization. Suggestions are made on future research in the field of air transportation.
KEY WORDS: good distribution practice, regulatory issues, controlled room
Information System of Railway Undertakings Train Track Requirements
Authors: Greiner Karel
Published: March 2012

The paper describes the facilities of a new application serving for entering railway undertakings requirements related to train tracks in the conditions of the Czech Republic. The application is a part of a new information system of the train timetables configuration. The train editor represents a distributed application consisting of a database server, application server and a client program. It contains most of the data of trains available in the programming schedule. In addition to features for working with trains, it provides a variety of analytical tools and printing of tools for railway workers and passengers. In order to coordinate compiling of the timetable by the infrastructure manager, a train-making procedure was designed based on the stages of the train.
KEY WORDS: timetable, train, information system, distributed application
Performance of Traffic Noise Barriers with Varying Cross-Section
Authors: Grubeša Sanja , Domitrović Hrvoje , Jambrošić Kristijan
Published: March 2012

The efficiency of noise barriers largely depends on their geometry. In this paper, the performance of noise barriers was simulated using the numerical Boundary Element Method (BEM). Traffic noise was particularly considered with its standardized noise spectrum adapted to human hearing. The cross-section of the barriers was varied with the goal of finding the optimum shape in comparison to classical rectangular barriers. The barrier performance was calculated at different receiver points for a fixed barrier height and source position. The magnitude of the insertion loss parameter was used to evaluate the performance change, both in one-third octave bands and as the broadband mean insertion loss value. The proposed barriers of varying cross-section were also compared with a typical T-shape barrier of the same height.
Estimation of EVA Mode Choice Model Parameters with Different Types of Utility Functions
Authors: Maher Tomaž , Strnad Irena , Žura Marijan
Published: March 2012

This paper presents the estimation of nine types of utility function parameters for the application in EVA mode choice model for the city of Ljubljana, Slovenia. Four different modes (private car, public transport, bike and walking) and five purposes (work, education, shopping, leisure and other) were taken into consideration. This paper presents first the design of the Stated Preference survey, then a brief review of the EVA model, different types of utility functions and the estimation method. The final log-likelihood enables comparison of different types of utility functions. The results show that absolute differences in final log-likelihood among most types of utility functions are not high despite the different shapes, which implies that different functions may best describe different variables.
Capacity of Bicycle Platoon Flow at Two-Phase Signalized Intersection: a Case Analysis of Xi’an City
Authors: Wang Yong-Gang , Wei Gang , Zhu Xu , Pei Yu-Long
Published: March 2012

Although much is known about the operation of signalized intersections, little or no empirical research has been conducted regarding bicycle capacity at these locations and the correspondent contributory factors. The purpose of this study is to accurately quantify the capacity of bikeway at signalized intersection through a fluid dispersion approach, and ultimately the lane group capacity. Using this total dispersion of bicycle flow, a relationship is also described between bicycle volume per hour and per unit width, signal parameters (length of signal cycle and green time), bicycle flow (arrival rate, density, moving velocity) and geometric intersection distance. Through the videotaping of four intersections that have significant bicycle traffic around Xiaozhai in Xi’an, China, it is ascertained that bicycle capacity varies linearly (but limited by an asymptote domain) associated with the adjustment of these parameters. The analytical results indicate that the impact saturation flow of lane groups containing right-turning vehicles and pedestrian flow at signalized intersections on bicycles is being underestimated. If this is the case, then capacity is being overestimated through the HCM 2000 capacity model and JJ37-90 approach and intersections are not being adequately designed, due to the neglect of conflict nature of mixed traffic arrivals in competing for space.
Young Drivers Perceptual Learning Styles Preferences and Traffic Accidents
Authors: Čičević Svetlana , Tubić Vladan , Nešić Milkica , Čubranić-Dobrodolac Marjana
Published: March 2012

Young drivers are over-represented in crash and fatality statistics. One way of dealing with this problem is to achieve primary prevention through driver education and training. Factors of traffic accidents related to gender, age, driving experience, and self-assessments of safety and their relationship to perceptual learning styles (LS) preferences have been analyzed in this study. The results show that auditory is the most prominent LS. Drivers in general, as well as drivers without traffic accidents favour visual and tactile LS. Both inexperienced and highly experienced drivers show relatively high preference of kinaesthetic style. Yet, taking into account driving experience we could see that the role of kinaesthetic LS is reduced, since individual LS has become more important. Based on the results of this study it can be concluded that a multivariate and multistage approach to driver education, taking into account differences in LS preferences, would be highly beneficial for traffic safety.
Model of Sustainable Growth and Development of the Cableway Transport System in Slovenia
Authors: Težak Sergej , Zelenika Ratko , Sever Drago
Published: March 2012

The cableway transport system is very important for the Slovenian tourist economy. Within the Slovene transport system, the cableway transport subsystem has a specific role because it allows and ensures access to regions which are difficult to access or completely inaccessible by other transport subsystems owing to the configuration of the area. The quality and development of transport services are directly linked to the introduction of new cableways. New technical achievements, which are nowadays used in cableways, all provide greater capacity and higher speed of cableways, which, however, results in their higher maintenance and exploitation costs.

The cableway transport system is being developed in Slovenia, but not on principles of sustainable development. This paper presents a model of sustainable growth and development of the cableway transport system in Slovenia based on which it is possible to determine assumptions for future growth so that the Slovene cableway transport system would approach standards of such highly developed systems. The new model includes ten essential elements of this system for which growth rates were calculated.
Unification of Logistic Demands of Small-scale Enterprises as Solution of Urban Traffic Congestion Problem
Authors: Petar Saša , Ivaković-Babić Morana
Published: March 2012

The development of information and telecommunication technologies, apart from accelerating the information flows, increasing efficiency on the market and other business changes, results also in the reduction of the number of employees in companies. With the application of new information and telecommunication technologies even companies with a single employee in certain activities (publishing, counselling, tourism, etc.) can successfully compete with larger companies, which leads to an increased number of logistic service demands. A large number of small enterprises create a large number of small orders which have to be delivered in the same unit of time, thus causing increased congestion of roads, especially in urban areas.

Although information transport, due to the mentioned technologies, has become to a large extent virtual, the transport of people and cargo continues to operate in a three-dimensional space (recognizing the time dimension as an important factor for calculating the business efficiency). The application of the model from the paper makes it possible to confirm the thesis of increased traffic congestion as consequence of the technological development and to emphasise the need to find a solution in the form of logistic and distribution centres for small and mid-size enterprises. The companies that offer logistic and distribution services may become centres for small and mid-size enterprises, thus offering a solution that maintains the speed and efficiency and avoids costs of congestions and delays.
AHP Methodology Application in Garage-parking Facility Location Selection
Authors: Deluka-Tibljaš Aleksandra , Karleuša Barbara , Benac Čedomir
Published: March 2012

The paper deals with the selection of traffic infrastructure facility location by applying the AHP (Analytic Hierarchy Process) multi-criteria analysis methodology. The proposed methodology is applied in a case study to solve the problem of selecting a location for the garage-parking facility in the town of defined characteristics. The paper analyses the characteristics of five potential locations (alternatives), the selection of criteria and measures for assessing the alternatives and presents the input data preparation, the application of the selected method and the analysis results. All the relevant criteria for the analyses were included: the traffic, the economic criteria and those which nowadays are of great significance: the influence of the facility on the environment and the social criteria which is in accordance with the sustainable development principles. The goal of the paper is to present the procedure of the AHP method application on the complex issue of traffic planning and to confirm the adequacy of the chosen method on the traffic facility strategic planning.
Two-level Evaluation of Public Transport Performances
Authors: Matulin Marko , Mrvelj Štefica , Jelušić Niko
Published: March 2012

The focus of this paper is evaluation of public transport (PT) performances. For this purpose the focus is on quantitative performance attributes of tramway network and two levels of the evaluation analysis are defined – the micro and macro level analysis. The two-level evaluation analysis can be used to solve the problem of ambiguity in conclusions about PT performances. The ambiguity appears when the set of collected data is incomplete, misinterpreted, partially analyzed or when some background impacts are neglected. For each level of analysis a set of performance indicators is defined and their mathematical formulations are presented. The selection of indicators is based on the analysis of expected events on the PT vehicle’s itinerary. The applied data collection methodology, necessary for testing of proposed evaluation approach, is described and the results are presented and discussed. It has been found that for a specific case the two-level evaluation analysis can be important for the control of PT performances and transport planning.
KEY WORDS: evaluation, public transport performance, micro and macro level analysis, quality of service
Protection of the Seas from Pollution by Vessel’s Sewage with Reference to Legal Regulations
Authors: Koboević Žarko , Komadina Pavao , Kurtela Željko
Published: March 2012

This paper deals with the rules and regulations pertaining to the protection of the marine environment from the pollution by vessel’s sewage. There is an international perspective on legal regulations dealing with this matter, but the sensitive marine environment has not been properly covered. Some maritime countries have set forth their own and more strict regulations to provide for a more efficient protection of their marine environments. Having compared the international legal regulations for the protection of the seas from pollution by vessel’s sewage with the regulations of individual countries that have stricter regulations, a certain similarity has been noticed in some criteria, but also significant differences in some other criteria concerning allowed discharge of treated or untreated waste waters from the vessels. Amendments to the valid legal regulations and establishment of new rules pertaining to the marine environment are of particular importance in order to provide for a more effective protection of the seas from the increasing pollution from vessel’s sewage preventing thus the negative influence onto marine organisms, human health and economy.
KEY WORDS: sea pollution, sewage, black water, faecal coliform bacteria, suspended solids, sewage treatment plant, convention
The History and the Foreseeable Future of Road Tolling in Hungary
Authors: Török Ádám , Siposs Árpád , Mészáros Ferenc
Published: March 2012

The main scope of this paper is to present the historical background and the foreseeable future of the Hungarian road tolling. In the introduction the authors have investigated the historical dataset of motorway constructions and analysed the unequal extension of motorway system in time and space. In this article the authors are considering road tolling as an instrument of financing road infrastructure investment and the maintenance and controlling possibilities of traffic flows.
KEYWORDS: road transportation, reduction of travel time, positive external effect
Determining Weight of Cargo Onboard Ship by Means of Optical Fibre Technology Draft Reading
Authors: Ivče Renato , Jurdana Irena , Mohović Robert
Published: March 2012

The accuracy of measuring mass of loaded or discharged cargo by draft survey mass measuring method varies due to both systematic and accidental errors. The paper analyzes an error of draft readings on the calculated quarter mean draft, displacement based on the calculated quarter mean draft and the final displacement. By analyzing this problem, the authors have reached the conclusion that the influence of an error made in draft readings can be significant, especially on the draft marks amidships. Optical fibre technology has been suggested as a new option for draft readings. In this paper, the authors propose a liquid level optical sensor for measuring the sea level in the sounding pipe. Draft readings obtained by optical sensors will be entered into ships’ navigational system and load master.
KEY WORDS: ship’s draft, error of draft readings, optical fibre technology, liquid level optical sensors.
Research of the Influence of Air Transportation on Blood Sample Quality
Authors: Majić Zvonimir , Jukić Irena , Vuk Tomislav , Pavlin Stanislav
Published: March 2012

In air freight industry, blood samples are classified as time and temperature sensitive biologically produced pharmaceuticals. To determine the level of influence that the handling processes and air transportation have on blood sample quality, a research has been conducted through transportation of whole blood samples on two European scheduled routes. Two shipping models were defined: the standard one without defined transportation temperature regime and the controlled one, where transportation is conducted under appropriate temperature regime. The blood samples were packed and transported respecting all relevant national and international regulations. The analysis was conducted and the results compared to control sample kept in the laboratory. Significant changes were identified on all components analyzed after crosschecking with the control sample.
KEY WORDS: regulatory issues, blood sample quality, shipping model, packaging instruction, temperature profiles
Scanning Fuel Tanks’ Corrosion Wastage of Some Aged Bulk Carriers Due to Security Reasons
Authors: Bauk Sanja , Aleksić Marinko , Ivošević Špiro
Published: March 2012

This paper deals with two different approaches in modelling corrosion wastage over the fuel tanks’ structures on the example of ten aged bulk carriers. The first applied method might be treated as a short-term, rather random oriented one, and it is based on the Monte Carlo simulation technique. This technique has been used in creating an appropriate predictive model for the characteristic steel damages over the bulk carriers’ fuel tanks caused by general corrosion in relatively short time interval of two years, within the period between the 5th and the 25th year of the bulks’ operational life. The second employed method might be treated as a long-term one, and it is based on a Weibull distribution analysis. The purpose of these analyses is optimal assessing of the average corrosion losses for the bulk carriers’ fuel tanks areas at different points of time during the whole exploitation cycle, within the ultimate goal of raising the structural stability and safety of bulk carriers in operation. KEY WORDS: bulk carriers, fuel tanks, corrosion wastage, Monte Carlo simulation, Weibull probability analysis
Customer-based Port Service Quality Model
Authors: Kolanović Ines , Dundović Čedomir , Jugović Alen
Published: March 2012

This port service quality study is an important precondition for an efficient development of port industry and traffic system as a whole. It is due to the complexity of any port, as a system consisting of a large number of stakeholders rendering services to customers with various requirements, that a unique set of port service quality indices has been still missing. For this reason, the paper explains the port service quality concept in compliance with stakeholders and their requirements within the context of port service quality.
The aim of the paper is to present a proposal for a customer-based port service quality model based on empirical study and its reliability testing on a selected sample. The proposed model is defined by five factors and fits satisfactorily into the obtained poll questionnaire results. The statistical data processing package SPSS 16.0 and the LISREL 8.54 programme were used in the study.
KEY WORDS: port service, customer, model, factor analysis
Development Potentials of Low Cost Aviation in the Republic of Croatia
Authors: Vidović Andrija , Steiner Sanja , Štimac Igor
Published: March 2012

The liberalization of the aviation market has enabled low-cost airlines to take over a significant share in the aviation market. Benefits of low-cost models are multiple, both for passengers and for secondary and regional airports, which were neglected in the past and which record significant inflow of passengers with the arrival of low-cost airlines.
In the structure of the air traffic in the Republic of Croatia in the last ten years, there has been a progressive growth of foreign low-cost airline operations, which suggests a potential for the operation of a Croatian low-cost airline.
This paper defines the criteria applicable to modelling of a low-cost airline in the Republic of Croatia in the relevant context of fleet management, route networking and operator’s processes in traffic technology. It analyzes the dynamics of low-cost airlines operations in the structure of air traffic in Croatia and the impact of traffic on the status of airports and the national operator.
KEY WORDS: low-cost airline, traditional airline, airport, route network, fleet management
Impact of Road Network Charging System on Pricing for General Cargo Transportation
Authors: Poliak Miloš
Published: March 2012

The paper defines the problem of pricing in general cargo by impact of toll in the first section. Different usage of a vehicle in individual transportation causes that it is not possible to calculate the toll uniformly for every cargo by constant price for the customer in the same transportation. The next part analyses the existing processes of the toll share for general transport described in Austria, Bohemia and Germany. None of the processes can be used for another state in general. The rest is a draft of the new method of toll share for general transport determination.   Key words: transportation, pricing, cargo, toll, road
Publicidade de alimentos para o público infantil na televisão e diretrizes alimentares brasileiras
Authors: Costa Mariana Luiza Guimarães , Oliveira Patricia Alves Drummond de , Auad Sheyla Márcia
Published: March 2012

Objetivo: Avaliar o conteúdo dos comerciais de produtos alimentícios veiculados em canais abertos da televisão brasileira durante a programação para o público infantil, os valores nutricionais desses produtos e o uso de personagens infantis para divulgação dos mesmos. Além disso, verificou-se se há veiculação de comerciais que promovem hábitos saudáveis durante tal programação e se os alimentos promovidos estão em sintonia com a recomendação das diretrizes alimentares brasileiras. Materiais e Métodos: Foram realizadas gravações dos principais canais abertos da televisão brasileira, em dois dias durante a semana e um dia no final de semana, para cada canal. A grade das emissoras foi previamente verificada para que as gravações fossem realizadas nos momentos em que programas voltados para o público infantil fossem veiculados, independentemente do horário. Resultados: Foram veiculados 119,5 minutos de comerciais, sendo 28minutos voltados para o público infantil (média diária de 9,3 minutos), dos quais 11,8 minutos compreendiam comerciais de produtos alimentícios. A utilização de animações ou personagens infantis como estratégiade publicidade foi constatada em 83,9% dos comerciais de produtos alimentícios destinados ao público infantil, enquanto apenas 5,4 minutos do tempo total de comerciais foram voltados para a veiculação de mensagens educativas e de promoção de saúde. Os alimentos promovidos apresentavam alto valor calórico, elevada quantidade de gorduras, açúcares e sódio. Conclusão: Observou-se que os comerciais voltados para o público infantil promovem o consumo de produtos potencialmente cariogênicos, utilizam personagens infantis para estimular sua venda, carecem de mensagens promotoras de saúde e estão em confronto com as diretrizes alimentares brasileiras.Descritores: Publicidade de alimentos. Televisão. Dieta. Criança.
Prescrição medicamentosa sob a visão de estudantes de Odontologia
Authors: Lúcio Priscilla Suassuna Carneiro , Castro Ricardo Dias de , Barreto Rosimar de Castro
Published: March 2012

Objetivo: Analisar, entre os acadêmicos de odontologia de duas universidades públicas da Paraíba, a visão que os mesmos tinham a respeito da prescrição de medicamentos, assim como verificar se os conhecimentos adquiridos na graduação são suficientes para o desempenho de uma correta e seguraprescrição medicamentosa. Materiais e Métodos: A amostra foi definida por conveniência, correspondendo a 132 alunos matriculados na Universidade Federal da Paraíba (UFPB) e Universidade Estadual da Paraíba (UEPB), que já tivessem cursado a disciplina de farmacologia/terapêutica. O instrumento de coleta de dados foi um questionário, abordando questões objetivas e subjetivas. Para análise das informações obtidas foi elaborado um banco de dados no programa Excel e realizada estatística descritiva. Resultados: Os acadêmicos sentem necessidade de diversas informações a respeito de conhecimentos farmacológicos; a principal fonte de informação usada e que usará para a prescrição, foram os conhecimentos adquiridos na graduação e os livros didáticos; 58,3% e 85,4% dos alunos da UFPB e UEPB, respectivamente, consideraram insuficientes os conhecimentos adquiridos na graduação para se tornarem prescritor. Conclusão: Verificou-se que osacadêmicos de odontologia da UFPB e UEPB não se sentem seguros para desempenhar a prescrição. Os dados apontam para necessidade de aprimoramento dos conteúdos acadêmicos e formas de abordagem, commudanças nas metodologias de ensino.Descritores: Prescrições de medicamentos. Estudantes de Odontologia. Farmacologia clínica.
Desafios de um exercício de calibração para estudo epidemiológico envolvendo variáveis quantitativas e categóricas ordinais
Authors: Martins Andréa Maria Eleutério de Barros Lima , Silveira Marise Fagundes , Freitas Carolina Vieira de , Eleutério Núbia Barbosa , Oliveira Pablo Henrique Ataíde , Ferreira Raquel Conceição
Published: March 2012

Objetivo: Relatar os desafios de um exercício de calibração de examinadores para estudo epidemiológico sobre maloclusão envolvendo variáveis quantitativas e categóricas ordinais, apresentando os resultados da consistência diagnóstica intra e interexaminadores. Materiais e Métodos: Voluntários foram selecionados antecipando condições que os examinadores encontrariam em campo. Maloclusão foi avaliada pelo DAI, cujos critérios foram expostos no treinamento teórico e reforçados no prático. Os  examinadores foram divididos em grupos e os dados coletados por exame. As concordâncias inter e intraexaminadores foram estimadas pelo CCI (Coeficiente de Correlação Intraclasse) para o DAI geral e o CCI ou Kappaponderado (Kw) para os componentes do DAI, utilizando-se os programas PASW e Excel. Os examinadores com concordância inferior a 0,60 foram considerados inaptos e deveriam ser submetidos a mais um exercíciode calibração. Resultados: Em três exercícios de calibração, demorados e dispendiosos, 33 examinadores em sete grupos, examinaram e re-examinaram 315 escolares. As concordâncias interexaminadores para oDAI geral, entre os pares de examinadores, variaram de -09 a 0,99 (pobre à excelente). A concordância de todos os examinadores em conjunto, por grupo, variou de 0,51 a 0,96, (razoável a excelente). Na análise porcomponentes, concordâncias entre os pares de examinadores >0,60 nos sete grupos foram encontradas para dentição, apinhamento e diastema. Discordâncias entre pares de examinadores para alguns dos componentesforam observadas mesmo em grupos cuja concordância entre o mesmo par de examinadores foi satisfatória para DAI geral. Pela concordância intra-examinadores para o DAI geral, de 0,37 a 1 (pobre a excelente), dois examinadores foram inaptos; na avaliação por componentes do DAI, 11 apresentaram CCI e Kw<0,60. Conclusão: A calibração de examinadores configura-se como um desafio para os pesquisadores demandandotempo e esforço. A concordância obtida por componentes do DAI identifica maior número de examinadores inaptos, garantindo assim maior acurácia aos resultados do levantamento epidemiológico.Descritores: Avaliação. Epidemiologia. Reprodutibilidade dos testes.
Programa lúdico-pedagógico para o controle do biofilme dental em indivíduos com deficiência visual
Authors: Haddad Denise Sabbagh- , Haddad Denise Sabbagh- , Haddad Aida Sabbagh- , Guaré Renata de Oliveira
Published: March 2012

Objetivo: Desenvolver um programa de prevenção e motivação odontológica para deficientes visuais, utilizando materiais lúdico-pedagógicos. Além disso, buscou comparar a eficácia do mesmo através do índice de higiene oral simplificado (IHOS) e do índice gengival (IG), em um grupo de cegos (grupoexperimental) e portadores de visão subnormal (grupo controle). Matérias e Métodos: Foram avaliados 15 indivíduos com deficiência visual da Associação de Pais e Amigos dos Deficientes Visuais (APADEV), de Caxias do Sul/RS, de ambos os sexos e idades entre 13 e 49 anos. Foram divididos em dois grupos: cegos (grupo experimental) e portadores de visão subnormal (grupo controle). Durante seis encontros (inicial, 15, 45, 75, 105 e 120 dias), todos os participantes receberam as mesmas informações e participaram dasmesmas atividades conduzidas pelo mesmo examinador (kappa=0,86). Após cada atividade realizava-se o IG e IHOS. Os dados foram avaliados considerando-se o nível de significância de 5% e utilizando-se os testesde Friedman e Mann-Whitney. Resultados: Em relação ao IHOS, houve diminuição do índice com diferença significativa para o grupo controle durante os momentos de 15 a 105 dias (p<0,01), o que não ocorreu como grupo experimental (p=0,77). Na avaliação do IG, observou-se diminuição do índice ao longo de todo o período no grupo controle (p<0,01). No grupo com deficiência visual o IG diminuiu entre 75 e 105 dias. Parao IHOS não houve diferenças estatisticamente significantes. Conclusão: Os indivíduos com visão subnormal apresentaram um efeito melhor (IG e IHOS) após o programa quando comparados com os indivíduos cegos.Descritores: Portadores de deficiências visuais. Motivação. Placa dentária. Higiene bucal.
Honorários praticados por operadoras de planos odontológicos e pelo SUS em relação aos definidos pelo Conselho Federal de Odontologia
Authors: Saliba Orlando , Góes Bruno Cabus , Garbin Cléa Adas Saliba , Santos Renata Reis dos , Garbin Artênio José Isper
Published: March 2012

Objetivo: Investigou-se o repasse de honorário ao cirurgião-dentista ofertado pelas empresas operadoras de planos odontológicos por grupos de procedimentos odontológicos. Materiais e Métodos: Os valores praticados por operadoras de planos foram definidos a partir da média obtida entre valoresdas tabelas de cinco planos com abrangência nacional. Esses valores médios e os valores pagos pelo SUS foram comparados com os estabelecidos na tabela VRCC – CFO. Para a comparação, foram obtidos valores médios para os seguintes grupos de procedimentos: preventivos, de dentística, de endodontia e de cirurgia. Os valores dos procedimentos preventivos foram comparados com os demais grupos de procedimentos. Resultados: Os planos aplicaram um desconto médio de 54,51% sobre os preços sugeridos pelo CFO. O maior desconto foi observado no grupo de procedimentos preventivos (57,09%, em média). Conclusão: As empresas operadoras de planos e convênios investigadas estão aplicando um desconto abusivo sob os preçossugeridos pelo CFO. É necessário identificar alternativas para que se possam reverter o quadro identificado por esse estudo.Descritores: Honorários odontológicos. Seguro odontológico. Planos de sistemas de saúde.