bluuebunny/crossref_metadata_2025 huggingface dataset:
FORECAST OF BIOGAS GENERATION IN LITHUANIAN REGIONAL LAND FILLS / LIETUVOS REGIONINIUOSE SĄVARTYNUOSE SUSIDARANČIO BIODUJŲ KIEKIO PROGNOZĖ
Authors: Šalčiūnaitė Brigita , Pliopaitė-Bataitienė Ingrida
Published: October 2015

The amount of generated waste in Lithuania ranges from 35,000 tons to 261,865 tons per year. 35% of this quantity is biodegradable waste – i.e. about 27,830 tons/year. 75% of municipal waste in Lithuania is disposed in landfills. Such management of municipal waste is dangerous because of environmental pollution with the biogas and leachate, increased global greenhouse effect, and so on. From 1 ton of landfill waste it is possible to get about 10 m3 of landfill gas, after using it 13 kWh and 50 kWh of thermal energy could be made. There was presented in this article the estimated amount of biogas produced by Lithuanian regional landfills each separately and all co-production of biogas from landfills potential Lithuania, using the software LandGEM. Total volume of gas liberated in landfills ranges from 7.8 × 106 to 5.8 × 107 m3/year of methane and carbon dioxide in an amount ranging from 3.9 × 106 to 2.9 × 107 m3/year. Minimum quantities of biogas generated in Tauragės regional landfill – 7.8 × 106 m3/year, and the highest – Kaunas regional landfill – 5.8 × 107 m3/year. From the generated biogass it would be possible to yield 2,145 × 108 kWh of electricity and 8.25 × 108 kWh of thermal energy.
Susidarančių per metus komunalinių atliekų kiekis Lietuvoje svyruoja nuo 35 000 t iki 261 865 t, o iš visų komunalinių atliekų vidutiniškai 35 % yra biologiškai skaidžių atliekų – t. y. apie 27 830 t/metus. Lietuvoje tvarkant komunalines atliekas net 75 % atliekų yra šalinama sąvartynuose. Taip komunalines atliekas tvarkyti pavojinga dėl galimos aplinkos taršos susidarančiomis biodujomis bei filtratu, stiprėjančio globalinio šiltnamio efekto ir pan. Per metus iš 1 t sąvartyno atliekų susidaro apie 10 m3 sąvartyno dujų, iš kurių būtų galima pasigaminti 13 kWh elektros energijos ir 50 kWh šilumos energijos. Taikant programinę įrangą LandGEM straipsnyje įvertintas susidarantis biodujų kiekis Lietuvos regioniniuose sąvartynuose atskirai kiekviename ir bendrai visas biodujų gavybos iš sąvartynų potencialas Lietuvoje. Sąvartynuose išsiskyrusių dujų kiekis svyruoja nuo 7,8.106 iki 5,8.107 m3/metus, o metano ir anglies dioksido dujų kiekis svyruoja nuo 3,9.106 iki 2,9.107 m3/metus. Mažiausi biodujų kiekiai susidaro Tauragės regioniniame sąvartyne – 7,8.106 m3/metus, o didžiausi – Kauno regioniniame sąvartyne – 5,8.107 m3/metus. Iš susidariusių biodujų būtų galima išgauti 2,145.108 kWh elektros energijos ir 8,25.108 kWh šilumos energijos.
MULTI-CRITERIA ASSESMENT OF BUILDING INTEGRATED PHOTOVOLTAICS / DAUGIAKRITERIS Į PASTATĄ INTEGRUOTŲ SAULĖS FOTOELEMENTŲ VERTINIMAS
Authors: Motuzienė Violeta , Valančius Kęstutis
Published: October 2015

To make reasonable solutions concerning integration of PV into the façade, complex assessment must be performed at the design stage of the building, taking into account all benefits and losses. The paper presents multi-criteria analysis of semi-transparent BIPV. It is based on 4 criteria: energy, ecology, economy, comfort – 3e+c. Results show that because of twice lower solar heat gains, PV window enables to save almost half of cooling energy, it also significantly improves thermal comfort. Total primary energy demand of the office after application of PV drops from 171 kWh/m2 to 96 kWh/m2. Multi-criteria analysis shows that office with BIPV is more sustainable than the one with transparent window. Kad būtų priimti pagrįsti sprendimai, susiję su saulės fotoelementų integravimu į pastato fasadą, projektuojant pastatą reikia atlikti kompleksinį naudos ir nuostolių vertinimą. Straipsnyje pateikiama daugiakriterė į pastatą integruotų saulės fotoelementų analizė, pagrįsta 4 darnumo kriterijais: energiniu, ekonominiu, ekologiniu ir komforto – 3e+c. Rezultatai rodo, kad dėl perpus mažesnių saulės pritėkių esant langui su integruotais fotoelementais, beveik perpus sumažėja energijos poreikiai vėsinant patalpas bei žymiai pagerėja šiluminis komfortas. Bendras administracinės patalpos pirminės energijos poreikis integravus saulės elementus sumažėja nuo 171 kWh/m2 iki 96 kWh/m2. Daugiakriterė analizė rodo, kad sprendimas naudoti langą su integruotais fotoelementais yra darnesnis nei sprendimas naudoti skaidrų langą.
Overview of the Foreign Experience of the Influence of Additive Manufacturing on Development and Deployment of Military Technology
Authors: Harašta Jakub
Published: October 2015

The paper presents the additive manufacturing method as a possible alternative to the current subtractive manufacturing methods. Based on literature survey, some of the problematic aspects of the discrepancy between the lengthy development cycles and rapidly changing operational demands responsive to current threats are identified. The paper also includes some thoughts on possibilities of solving inadequacies in the development cycles, as well as related logistical apparatus, by additive manufacturing. For the sake of objectivity, the last part is dedicated to deficits of additive manufacturing, being inherent to technology or possibly to be overcome by further development of the field.
Marin et citoyen : être noir et libre à bord des navires états-uniens avant la Guerre civile
Authors: Jones Martha S.
Published: October 2015

Les hommes de couleur libres ont utilisé l’engagement sur les navires des États-Unis pour se doter de droits dont ils ne disposaient pas hors de ces situations. Cela a été notamment le cas pour les libres de couleur de Baltimore. Après avoir exposé la situation de la communauté des hommes et des femmes noirs libres de cette ville, cet article évoquera les expériences juridiques diversifiées que le futur leader noir George Hackett eut l’occasion de faire lors du voyage qui le conduisit, comme steward de l’USS Constitution , de Baltimore à Valparaiso entre 1839 et 1841.
Les Noirs libres et la citoyenneté américaine dans le Nord-Ouest des États-Unis (1787-1830)
Authors: Rossignol Marie-Jeanne
Published: October 2015

Cet article se penche sur le territoire du Nord-Ouest des États-Unis où l’esclavage fut interdit avant même que le territoire ne soit organisé en États et ouvert au peuplement euro-américain à compter de 1787. L’interdiction de l’esclavage n’en fit pas un refuge pour les Noirs libres ou les esclaves en fuite : au contraire la région se dota de discriminations légales, et un républicanisme blanc exclusif s’y développa. Situé à l’Ouest, proche des Grands lacs et du Canada comme d’États esclavagistes, le Nord-Ouest constitua pourtant un creuset où se renouvelèrent les méthodes des antiesclavagistes au contact des Noirs libres et des esclaves fugitifs auxquels Noirs et Blancs portaient secours. Leurs combats annoncent ceux des abolitionnistes après 1830, et l’émergence d’une république plus inclusive.
L’égalité divisée. La race au cœur de la ségrégation juridique entre citoyens de la métropole et citoyens des « vieilles colonies » après 1848
Authors: Larcher Silyane
Published: October 2015

Si conformément au principe révolutionnaire d’universalité des droits du citoyen, l’abolition de l’esclavage par la Seconde République en 1848 a institué la pleine égalité civile et politique entre citoyens (masculins) de la métropole et ex-esclaves des « vieilles colonies » de plantation, l’égalité civique n’a pas pour autant impliqué la pleine inclusion de ces derniers dans la « communauté des citoyens ». En effet, la pleine citoyenneté française s’est accompagnée aux Antilles (mais aussi en Guyane et à la Réunion) d’un régime législatif dérogatoire au droit commun. Ces « colonies de citoyens » furent régies par un système juridique les plaçant en dehors des lois applicables en métropole. Quelle « pensée d’État » permit, au long de plusieurs régimes politiques distincts, de faire tenir ensemble l’articulation improbable entre égalité civique et exception ? La division de l’égalité qui fonda une mise à l’écart des égaux ou une « altérisation » des citoyens des colonies post-esclavagistes s’est articulée dans la longue durée à une politisation des héritages historiques et anthropologiques des personnes originaires des îles à sucre. En abordant l’histoire de la citoyenneté française à partir de sa marge coloniale caribéenne, on observe ainsi qu’elle ne fut pas toujours unitaire ni abstraite : elle s’est articulée à une fabrique spécifique de la race. La logique de racisation par laquelle s’opéra la coupure entre Français de la métropole et Français des « vieilles colonies » anciennement esclavagistes ne se comprend pas simplement en termes coloristes, mais plutôt en termes « civilisationnels » – en termes « culturels » dirions-nous aujourd’hui.
Race, révolte, république : les marins brésiliens dans le contexte post-abolitionniste
Authors: Capanema Silvia
Published: October 2015

Cet article propose d’étudier les relations entre la circulation des idées républicaines, les expériences raciales et la condition des matelots subalternes de la marine de guerre dans le contexte post-abolitionniste du début de la République, à travers l’analyse de la plus importante mutinerie de marins qui a eu lieu au Brésil : la révolte de 1910 contre les châtiments corporels à Rio de Janeiro. Le texte discute, dans un premier temps, le processus de racialisation au Brésil à la lumière des deux plus profondes transformations de la fin du XIX e  siècle : l’abolition de l’esclavage (1888) et la proclamation de la République (1889). Dans un deuxième temps, l’article démontre comment les jeunes rebelles de 1910, en majorité Noirs, métis et originaires du nord et du nord-est du pays – régions considérées comme périphériques et « en retard » – ont construit leur mouvement en s’appuyant sur une identité commune : celle de marins et citoyens républicains. Cette identité se montrait incompatible avec les pratiques et les héritages esclavagistes toujours présents dans la société brésilienne, et en particulier dans la marine.
Self-Healing Properties of Conventional and Fly Ash Cementitious Mortar, Exposed to High Temperature
Authors: Mukherjee Shaswata , Mondal Saroj
Published: October 2015

Direct stress and sub-stress caused by fire, temperature variation and external loading in a structure are most important for the development of cracks. The chemical reactions of natural healing in the matrix was not been established conclusively. The most significant factor that influences the self-healing is the precipitation of calcium carbonate crystals on the crack surface. The mechanism which contribute autogenic healing are: (a) Continued hydration of cement at cracked surface as well as continued hydration of already formed gel and also inter-crystallization of fractured crystals; (b) blocking of flow path by water impurities and concrete particles broken from the crack surface due to cracking; (c) expansion of concrete in the crack flank (swelling) and closing of cracks by spalling of loose concrete particle are also reported as the sealing mechanism by researchers. The recovery of mechanical as well as physical property was discussed by different researchers. An experimental investigation was carried out to study the autogenic healing of fire damaged fly ash and conventional cementitious mortar samples subjected to steam followed by water curing at normal atmospheric pressure. The micro cracks are generated artificially by heating the 28 days aged mortar samples at 800 Deg. C. The effect of fly-ash replacing ordinary Portland cement by 0 and 20% was studied. Recovery of compressive strength and physical properties i.e. apparent porosity, water absorption, ultrasonic pulse velocity and rapid chloride ion penetration test confirm the self-healing of micro cracks. Such healing is more prominent for fly ash mortar mix. Optical as well as scanning electron microscopy With EDAX analysis and X-ray diffraction study of the white crystalline material formed in the crack, confirms formation of calcium carbonate.
An Implementation of a Complete Methodology for Wind Energy Structures Health Monitoring
Authors: Zugasti E. , Mujica L. E. , Anduaga J. , Martinez F.
Published: October 2015

In this chapter a complete methodology for a SHM damage detection solution is explained, and how this is validated in a laboratory tower model. Several methodologies are proposed for the typical process of SHM. Starting with sensor placement (the best possible sensor locations are found), selecting the more representative data, classifying the different environmental and operational conditions, applying a damage detection methodology, including sensor fault detection. The paradigm of damage detection can be tackled as a pattern recognition problem (comparison between the data collected from the structure without damages and the current structure in order to determine if there are any changes). There are lots of techniques that can handle the problem. In this work, accelerometer data is used to develop statistical data driven approaches for the detection of damages in structures. As the methodology is designed for wind turbines, only the output data is used to detect damage; the excitation of the wind turbine is provided by the wind itself or by the sea waves, being those unknown and unpredictable.
Electrolyte Filling of Large-Scale Lithium-Ion Batteries: Challenges for Production Technology and Possible Approaches
Authors: Knoche Thomas , Reinhart Gunther
Published: October 2015

Lithium-ion batteries have been the dominant energy storage technology in consumer electronics for several years and meanwhile advanced into e-mobility and stationary applications. The trend towards large-scale batteries presents manifold challenges to production technology. One decisive assembly process is filling electrolyte liquid into the battery case. This paper discusses the main influences and challenges for production technology concerning this crucial manufacturing process and how they are addressed. First preliminary results are presented.
Measurement of Rings via Image Processing during and after Radial-Axial Ring Rolling
Authors: Husmann Simon , Husmann Tobias , Meier Horst
Published: October 2015

Seamless rings are used in several industrial sectors and are mainly produced by radial-axial ring rolling. To be able to detect process or form errors, which nowadays cannot be detected reliably by the conventional sensor technology of a radial-axial rolling machine, an image pro­cessing device has been mounted above the table of the ring rolling machine. This paper introduces the possibilities for measurements via image processing during and after radial-axial rolling of rings.
Hollow Lateral Extrusion of Tubular Billets – Further Development of the Cold Forging Process
Authors: Wälder Jonas , Liewald Mathias
Published: October 2015

Light weight engineering in structural design and use of lighter materials are becoming increasingly important in bulk metal forming. Results gained by a DGF funded project which will be introduced in the following, concerning novel advancements of hollow lateral extrusion. Paper exhibits further development of this process, so cold forged components having undercuts without using a lateral tool plane easily can be manufactured. Thereby, the focus of attention is on the tool design as well as on the analysis of the unmodified forming process. Therefore, experimentally investigations have been carried out, failures on components are analyzed and process limitations of an experimental setup for cold forging of hollow billets at room temperature are illustrated.
Influence on Surface Quality in Milling of Green Stage Zirconia for Dental Products
Authors: Dejkun Vitali , Dietz Sören , Abele Eberhard
Published: October 2015

The following article gives an overview on the manufacturing challenges of milling green stage zirconia. Significant influence factors on the surface quality like machine type, cutting parameters, milling strategy and post processing were investigated. The results show a minimal influence of the machine type. Furthermore machining zirconia with high cutting speed and low cutting depth best for surface quality. Tool wear and milling strategies have major influences on surface roughness and chipping. The combination milling strategy leads to material cracks and has negative impacts on the surface quality. Post processes like polishing and sintering improves surface roughness by 50 % after the milling.
Simulation of Cylinder Deformations during Honing of Thermally Coated Running Surfaces in Crankcases
Authors: Kreter Sascha , Schweickert Stefan , Karpuschewski Bernhard
Published: October 2015

The internal combustion engine of the future has to cope with increasing high requirements. A large potential is seen in reducing friction in the piston group. For this purpose a coating technology for cylinder running surfaces, including mechanical machining processes was developed. By substituting the compact cast iron liners (4 mm wall thickness) for the thin coating layer (0.1 mm) the normal forces become more important in the honing process. Due to the different stiffness of the crankcase roundness deviations occur caused by the machining forces as a result of elastic deformation. Content of this paper is the calculation of the elastic deformations using the finite element method. Based on a honing tool model, the effective normal forces are calculated, which afterwards are used as input variables for the crankcase model.
Characterization of CO2 Snow Generation to Increase the Blasting Performance
Authors: Kretzschmar Michael , Baira El Mustapha , Uhlmann Eckart
Published: October 2015

Chemical cleaning methods are under strict restrictions due to the legislator, as they are often harmful to environment and health. Therefore, environmentally neutral cleaning methods will gain importance in the future. Alternative cleaning processes like blasting with solid carbon dioxide can substitute such harmful chemicals without residues of blasting media. CO2 snow blasting has a minor technical complexity with a possible high degree of automation, but is limited in its cleaning performance. Basic knowledge of CO2 formation must be gained in order to increase the cleaning performance. The basic dependencies of ambient pressure and temperature as well as the possibility of their manipulation regarding the produced CO2 particles were investigated. The investigations were conducted using design of experiments and lead to a model describing the CO2 snow formation and its properties. The goal was to manipulate the properties of the generated CO2 snow in order to optimise the technology regarding the cleaning task.
Joining Aluminium Alloy and Mild Steel Sheets by Roller Clinching
Authors: Hiller Maria , Volk Wolfram
Published: October 2015

Roller clinching is a mechanical joining method, which combines conventional clinching with rotational tool movement. For that purpose, punches and dies are mounted on contrariwise rotating rolls, while the sheets are continuously fed forward. The rotation affects the joint formation and therefore the mechanical joint properties. In this paper, the ratio between the rolling radii of punch and die is varied. Shear tests are conducted for the material combination steel and aluminium with different sheet thicknesses. Because of the asymmetry of the resulting clinchpoints, the joint strengths are examined in different load directions. The joint formation is analysed using cross sections and the effects of different punch geometries are discussed. Finite element simulations are used to gain deeper process insight.
Optimisation of Lean and Green Strategy Deployment in Manufacturing Systems
Authors: Greinacher Sebastian , Lanza Gisela
Published: October 2015

This optimisation approach focuses on the shop floor of a manufacturing company. It aims for an integrated lean and green assessment of a manufacturing system and the identification of a cost optimized combination of lean and green strategies with regard to green targets. For green assessment material and energy inputs as well as resulting CO2 emissions are taken into account. Lean assessment focuses on costs and throughput time. Potential lean and green strategies identified during top down analysis are integrated into a discrete event simulation model. This model is connected with optimisation heuristics which improve combined lean and green strategy deployment to the manufacturing system.
Implementation of Additive Manufacturing Business Models
Authors: Lutter-Günther Max , Seidel Christian , Kamps Tobias , Reinhart Gunther
Published: October 2015

For the application of Additive Manufacturing (AM), a wide range of use cases are applied in industrial practice. The technological potentials of AM enable specific business models, which characterise how AM utilisation adds value to a company’s business. For the implementation of AM, a paradigm shift is required on an operational and strategic level, making it necessary to adjust processes and structures. Herein, the interdisciplinary character of the technology needs to be taken into account. In this paper, a typology of AM business models is derived from specific technology potentials, providing orientation in the field of AM use cases. Furthermore, a top down approach is pursued in order to develop an implementation process model, which assists companies when considering AM adoption. It enables companies to identify suitable AM business models and points out fields of actions necessary for implementation. Since the implementation depends on the AM business model at scope, also guidelines that provide measures on a more detailed level are presented.
Superimposed Oscillating and Non-Oscillating Ring Compression Tests for Sheet-Bulk Metal Forming Technology
Authors: Koch S. , Vucetic Milan , Hübner Sven , Bouguecha Anas , Behrens Bernd-Arno
Published: October 2015

The new manufacturing technology sheet-bulk metal forming (SBMF) combines the sheet metal forming and bulk metal forming techniques. At the Institute of Forming Technology and Machines (IFUM), a new multistage SBMF process is being developed. In order to reduce the friction and improve the dimensional accuracy of the parts, superimposed oscillation is used within the new SBMF process. SBMF processes allow the manufacturing of solid metal components out of flat steel. To analyse the effect of friction on the superimposed oscillating SBMF process more precisely, superimposed oscillating and non-oscillating ring compression tests at room temperature were carried out. Like the semi-finished products for SBMF process the ring specimens were cut out of a sheet plate by water jet cutting. A new tool system with an integrated hydraulic oscillation system was developed for superimposed oscillating compression of the ring specimens. This tool system enables the absorption of the forming force and displacement stroke of the ring specimen during the ring compression test. After the practical experiments, the force profiles of superimposed oscillating and of non-oscillating process were compared. The influence of the frequency on the surface roughness of ring specimens was investigated. Furthermore, the tribological conditions of the superimposed oscillating ring compression test were analyzed.
Optimization of Cooling and Lubrication for Nitrided and Ceramic-Coated Hot Forging Dies
Authors: Puppa Jan , Behrens Bernd-Arno
Published: October 2015

In order to enhance the tool life of hot forging dies, increasing the wear resistance of the forming tool surface is of great importance. In addition to thermal and thermo-chemical surface treatments, methods applying thin wear-resistant coatings gain more importance. Therefore, ceramic-based mono- or multilayer hard coatings are used in combination with a supporting nitride layer. Due to their low material-specific thermal conductivity, ceramic coatings have an increased sensitivity to abrupt temperature changes. To avoid such thermal shocks, an adjustment of the cooling behaviour is required. This paper presents the results of laboratory forging tests conducted under different cooling and lubrication conditions on nitrided dies with ceramic coatings. By means of a selective cooling of the forming tool surface and using boron nitride as lubricant the wear behaviour of the forging dies could be improved.
Data Warehouse Software Used in the Decisional Process on the Capital Market
Authors: Anghelache Constantin , Manole Alexandru , Anghel Mădălina Gabriela
Published: October 2015

Capital market provides strong opportunities for investors who know how to adopt favorable decision in real time. The decision to invest on the capital market involves deep knowledge on the mechanisms and characteristics of this market, the factors that determine the consequences of investment decisions and the performance of allocated capital. As the data volume related to the capital market evolution reaches a sizable amount, we consider appropriate to propose a multidimensional data structure that would be able to assist the investor in analyzing the shares in which he would like to invest. This structure could be designed by using an accessible support system, as the dimensional model proposed is valid for any DSS based on OLAP.
Supply Chain Complexity Measures Using Information Theory
Authors: Modrak Vladimir , Bednar Slavomir
Published: October 2015

One of the complexity metrics that contribute towards determination of the overall complexity of supply chains is based on so called static complexity. In this article, we firstly present an architectural framework for supply chain networks. Subsequently, selected complexity indicators based on Axiomatic Design theory and Boltzmann entropy are applied. The indicators used are benchmarked based on computational experiments. Finally, relevant conclusions are formulated.
IT Training - Lecturer or E-Learning? Case Study
Authors: Sadłowska-Wrzesińska Joanna , Grupka Krzysztof , Gabryelewicz Izabela
Published: October 2015

Computers are more and more often used in training people. One of the most popular methods in this respect is e-learning. One of its biggest advantages is that the student may choose the best time and place to learn, as well as the pace of learning. Thanks to constant access to the material he may come back to difficult issues, analyze them again or comment on forums. It is a convenient solution for people who for some reasons cannot participate in traditional indoor training and therefore are unable to access the whole material. However, contemporary training didactics emphasizes teamwork skills. It is more and more often indicated that teamwork has an inspiring influence on the workers. It boosts their activity, co-operation, rational work management and responsibility for real effects. The article presents the score of an exam in Information Technology. The exam was taken by bachelor degree students of logistics. 160 students took part in the research. A part of the students learned the material with a teacher and the other part through e-learning. The research shows the diversification of stores of both groups. The aim of this article is to show that using not the whole e-learning system, but only its certain elements leads to lower effectiveness of education process.
The Impact of the Cloud Computing Model on Functioning and Competitive Abilities of SMEs
Authors: Wielki Janusz
Published: October 2015

The aim of this paper is to analyze the potential impact of utilization of the cloud computing model by small and medium sized enterprises (SMEs) on their functioning and ability to compete effectively. It is composed of six parts. The first part offers a brief overview of the development of these new technologies and their impact on businesses. The next part is focused on the notion of cloud computing, the basic elements of this model and the most important reasons for its development. The following part is devoted to an analysis of the benefits to SMEs of using the cloud computing model, while the fourth part focuses on the most significant challenges connected to its use. The fifth part discusses the most important elements connected to the implementation of cloud computing solutions. The final part of the paper provides a summary of the most significant conclusions.
Performance Measurement and Risk Management Framework of the Enterprise’s Integrated in Logistic Chains in the Context of the Information Society
Authors: Duică Mircea Constantin , Duică Anişoara , Grabara Iwona
Published: October 2015

The intensified competition, the frequent change of the clients’ preferences and the globalization of the capital, product, service and information flows have turned the efficient product management into an essential factor for increasing competitiveness in production systems integrated in supply chains. In this context, industrial excellence can be obtained only by an efficient process piloting, using some performance measurement systems that permit a good substantiation of the decisions based on correct and reliable information, taking into account the risks specific to supply chains. The paper includes a review of the literature in the field of performance measurement for supply chains to understand the current practice and contributes to the development of the supply chain performance measurement framework using risk management, the case study method, a statistic quantitative data analysis and modern performance measurement techniques such as: balanced scorecard and supply chain operation reference.
Descrizione di due nuove specie di Conoderus del gruppo II di Candéze: C. drehseli n. sp. e C. tognoni n. sp. e ridescrizione di C. calcaratus Candèze (1881) (Coleoptera Elateridae)
Authors: Riese Sergio
Published: October 2015

Vengono descritte due nuove specie di Conoderus del Paraguay: C. drehseli n. sp. e C. tognoni n. sp. e ridescritto C. calcaratus Candèze 1881, specie ad esse affine.
Nuovi reperti per la fauna microlepidotterologica degli ambienti forestali del Parco Nazionale della Sila, area MAB Unesco (Lepidoptera yponomeutoidea, Gelechioidea)
Authors: Scalercio Stefano , Luzzi Giuseppe , Laudati Michele
Published: October 2015

Vengono segnalate per la prima volta nel territorio del Parco Nazionale della sila 10 specie di microlepidoptera sottolineando il loro interesse faunistico per l’Italia meridionale. Ethmia pusiella è segnalata per la prima volta in Calabria. Cedestis subfasciella, Ypsolopha ustella, Schiffermuelleria schaefferella, Herrichia excelsella, Harpella forficella e Mirificarma cytisella sono segnalate per la prima volta in Italia meridionale. Argyresthia goedartella, A. pruniella e Sophronia sicariellus sono segnalate per la prima volta in Italia centro-meridionale.
Eupithecia conterminata (Lienig, 1846), una specie silvicola alloctona nuova per la fauna italiana nel Parco Nazionale della Sila, area MAB Unesco (Lepidoptera, Geometridae)
Authors: Infusino Marco , Scalercio Stefano
Published: October 2015

La segnalazione di specie nuove per la fauna italiana nelle regioni meridionali è abbastanza frequente. Spesso queste specie hanno gravitazione asiatica o africana e frequentano ambienti peculiari del meridione o sono in espansione dalle coste meridionali del Mediterraneo verso settentrione. Desta pertanto particolare interesse il ritrovamento proprio al meridione, nel Parco Nazionale della sila, della prima popolazione italiana certa di una specie di alte latitudini e di climi freddi come Eupithecia conterminata (Lienig, 1846). Questa è una specie legata troficamente a Picea abies e probabilmente la popolazione rinvenuta è stata introdotta artificialmente in seguito a pratiche selvicolturali che hanno riguardato la messa a dimora, diversi decenni addietro, di piante di abete rosso nell’area di rinvenimento. Future ricerche potranno chiarire l’areale d’origine del popolamento silano e individuare i parametri ecologici che hanno determinato l’instaurarsi di una popolazione residente in un’area così meridionale dell’Europa.
Segnalazioni Faunistiche Italiane
Authors: V.V. A.A.
Published: October 2015

590 - Colotes (Psauter) obsoletus Erichson, 1840 (Coleoptera Malachiidae)591 - Anthocomus fenestratus Linder, 1864 (Coleoptera Malachiidae)592 - Nepachys cardiacae (Linnaeus, 1761) (Coleoptera Malachiidae)593 - Ctenoplusia accentifera (Lefèbvre, 1827) (Noctuidae Plusiinae)
The integration of lean, green and best practice business principles
Authors: Wiese Annelize , Luke Rose , Heyns Gert J. , Pisa Noleen M.
Published: October 2015

Background: Whilst there are separate streams of established research on lean, green and best practice initiatives, the intersection of these three strategic principles has not been addressed extensively in the past.Objectives: In this study a framework to integrate lean, green and best practice principles into an integrated business model was developed as a strategy for businesses to develop sustainable competitive advantages.Method: A descriptive case study was conducted on Toyota South Africa Motors (TSAM) to understand whether a clear link between the company’s environmental approach, lean principles and established best practice culture could be determined. In addition, the case study tested the view that the implementation of these three principles concurrently resulted in improved business results.Results: The main findings of the study revealed that TSAM’s commitment to lean, green and best practice business principles contributed and was directly linked to its business success in terms of sales and market position.Conclusion: It is recommended that businesses implement an integrated lean, green and best practice business model as a strategy to reduce costs and sustainably enhance profitably and competitiveness.
Errors Associated to Keratoconus Grading using Systems based on Corneal Power
Authors: Camps Vicente
Published: October 2015

Purpose

To analyze and define the possible errors that may be introduced in keratoconus classification when the keratometric corneal power is used in such classification.

Materials and methods

Retrospective study including a total of 44 keratoconus eyes. A comprehensive ophthalmologic examination was performed in all cases, which included a corneal analysis with the Pentacam system (Oculus). Classical keratometric corneal power (Pk), Gaussian corneal power (PcGauss), True Net Power (TNP) (Gaussian power neglecting the corneal thickness effect), and an adjusted keratometric corneal power (Pkadj) (keratometric power considering a variable keratometric index) were calculated. All cases included in the study were classified according to five different classification systems: Alió-Shabayek, Amsler-Krumeich, Rabinowitz- McDonnell, collaborative longitudinal evaluation of keratoconus (CLEK), and McMahon.

Results

When Pk and Pkadj were compared, differences in the type of grading of keratoconus cases was found in 13.6% of eyes when the Alió-Shabayek or the Amsler-Krumeich systems were used. Likewise, grading differences were observed in 22.7% of eyes with the Rabinowitz-McDonnell and McMahon classification systems and in 31.8% of eyes with the CLEK classification system. All reclassified cases using Pkadj were done in a less severe stage, indicating that the use of Pk may lead to the classification of a cornea as keratoconus, being normal. In general, the results obtained using Pkadj, PcGauss or the TNP were equivalent. Differences between Pkadj and PcGauss were within ± 0.7D.

Conclusion

The use of classical keratometric corneal power may lead to incorrect grading of the severity of keratoconus, with a trend to a more severe grading.

How to cite this article

Llorens DPP, Camps V, Caravaca-Arens E. Errors Associated to Keratoconus Grading using Systems based on Corneal Power. Int J Kerat Ect Cor Dis 2015;4(2):41-46.
A Special Design of Intacs SK and Collagen Corneal Cross-linking for the Treatment of Pellucid Marginal Degeneration in a 74-Year-Old Male
Authors: Barbara Ramez , Barbara Adel
Published: October 2015

We present a case report of a 74-year-old male who suffers from advanced and progressive pellucid marginal degeneration in his right eye, his left eye is legally blind because of macular scar.

We performed a combined procedure of a special design Intacs SK insertion followed by epi-off collagen corneal crosslinking according to the Dresden protocol. The Intacs SK were inserted by the manual technique, no intra- or postoperative complications were noted. Two months postoperatively, his uncorrected and best spectacle corrected visual acuity improved, the astigmatism was reduced and regularization of the corneal topography was observed. The patient is very satisfied from the improvement of his vision by minimally invasive procedures.

How to cite this article

Barbara A, Barbara R. A Special Design of Intacs SK and Collagen Corneal Cross-linking for the Treatment of Pellucid Marginal Degeneration in a 74-Year-Old Male. Int J Kerat Ect Cor Dis 2015;4(2):69-75.
MyoRing Treatment of Keratoconus
Authors: Daxer Albert
Published: October 2015

A case of bilateral keratoconus after corneal cross-linking in both eyes and ineffective ring segment implantation in the left eye is presented. The ineffective ring segment was removed and instead, a corneal pocket was created and a MyoRing was inserted. In this case study, the currently available options of treatment are presented and the differences between ring segments and MyoRing are discussed in detail.

How to cite this article

Daxer A. MyoRing Treatment of Keratoconus. Int J Kerat Ect Cor Dis 2015;4(2):76-83.
Emigration as an emancipatory project. Narratives on experiences of Polish women in Norway
Authors: Herzberg Magdalena
Published: October 2015

Feminine migration might be considered as a way to emancipation and a great possibility to achieve both professional and private fulfillment. Migration can radically change the meaning of femininity and can strongly affect the traditional role of women. The correlation between migration and gender roles cannot be ignored when analyzing the migratory project due to their mutual influence. The main aim of the research was to find out if Polish women in Norway consider their migration as a way to emancipation.
Shift in social order – shift in gender roles? Migration experience and gender roles
Authors: Havlin Tetiana
Published: October 2015

Does gender matter in the context of immigration? What significance does it gain through time? Does transition from one gender role to another result in redistribution of family roles? These are the main questions which this paper addresses through scientific discourse and empiric research. In particular the paper deals with the question whether the transition from one gender role to another in the course of immigration triggers the liberalization of gender roles in the families of East-European immigrants (from Ukraine, Russia, Kazakhstan, and Armenia) in Germany. This is investigated through semi-structured biographical interviews with female immigrants to Germany conducted by the author in 2012-2014. The findings illustrate a specific shift of gender roles in the context of migration. On the one hand, willingly or through circumstances, immigrant women are more likely to be involved in the decision-making process, to adapt to a breadwinner role, and to undertake the communication functions with official institutions (often due to better language proficiency). On the other hand, men are more likely to be more engaged in the caregiver roles for offspring, to maintain native language in communication with children (from mother tongue to ‘father tongue’), and to fulfill housekeeping duties. These patterns are rather untypical for post-soviet gender roles, with their increasing tendency to the renaissance of traditional gender roles.

The question of whether a shift in gender roles related to migration from one country to another leads towards the greater liberalization of gender roles still remains debatable. But migration experience reinforces the transformation of gender roles which initially are not only distinct but also unequal. Thus, migration can accelerate restructuring of the gender relationship. In turn, a new social order imposes – on immigrants – a demand for greater flexibility of gender roles in the family and for diversity in household strategies.
Level of occupational stress of court probation officers and style of coping with stress
Authors: Wirkus Łukasz
Published: October 2015

Background

The relationship between a court probation officer and their ward is a specific one and is frequently connected with enormous individuals costs. This fact is connected with the character of the job, and with the conditions determining its character. Psychosocial threats may influence both mental and somatic health, directly or indirectly, by means of the influence exerted by stress.

Participants and procedure

The main study was conducted at the offices of the teams of the Court Probation Service. The teams of the Court Probation Service are part of the structure of the following 9, randomly selected, district courts (DCs): DC Wrocław, DC Bydgoszcz, DC Szczecin, DC Poznań, DC Łódź, DC Lublin, DC Kraków, DC Katowice and DC Białystok. Participation in the research was voluntary and anonymous; the tools were arranged in sets, and the sequence of those sets was random. The sets of research tools were received by 1,000 individuals altogether.

Results

The conducted research confirmed the need to verify the significance of the feeling of occupational stress of court probation officers at the workplace and the correlations between it and a number of variables. Below, I present statistical analyses concerning various aspects of occupational stress experienced in the studied group, including correlations between the general level of occupational stress and the dimensions of it, and organizational predictors. The objective of the research was to indicate the styles of coping with stress and the correlations of them with the stress felt by court probation officers.

Conclusions

The research confirms a significant influence exerted by organizational determinants upon the general level of felt occupational stress. Professional court probation officers experience a higher level of felt occupational stress; what is conducive to that is high encumbrance with occupational responsibilities, and also functioning directly in structures of the court of law. Court probation officers suffering from high and low levels of occupational stress differ from one another in terms of the selection of the style concentrated on emotions, which is relevant to the style typical of individuals manifesting the propensity for concentrating on themselves and their own emotional experiences. The individuals manifesting a high level of felt occupational stress select the style described in this paper much more frequently than individuals suffering from a low level of stress.
Who is a dangerous driver? Socio-demographic and personal determinants of risky traffic behavior
Authors: Peplińska Aleksandra , Wyszomirska-Góra Magdalena , Połomski Piotr , Szulc Marcin
Published: October 2015

Background

The aim of this study was to search for comprehensive socio-demographic and personal (personality and temperamental) determinants of risky on-the-road behavior. Based on the results of previous studies, we assumed that the main predictors of dangerous traffic behavior include: internal locus of control, sensation seeking, risk seeking and risk acceptance, as well as high self-esteem, a low level of reactivity combined with a high level of endurance and activity (which together determine a strong need for stimulation and a preference for hedonistic values); and among socio-demographic variables – age, gender, education and duration of having a driving license.

Participants and procedure

The study included a group of 380 participants, aged between 19 and 61 years (Me = 24). In order to verify the hypothesis, a battery of research tools measuring personality and temperamental variables was adopted, namely: the Formal Characteristics of Behavior – Temperament Questionnaire, Rotter I-E Scale, Risk Acceptance Scale, Stimulating-Instrumental Risk Inventory, Scheler Value Scale, Zuckerman Sensation Seeking Scale and Rosenberg Self-Esteem Scale.

Results

The dangerous driver syndrome was found to be promoted by high levels of experience and sensation seeking, low levels of tolerance to boredom and monotony, high need for stimulating risk and high risk acceptance, high self-esteem, a preference for hedonistic values coupled with aversion towards moral values, as well as low sensory sensitivity, and was especially visible among older men with short driving experience.

Conclusions

It can be concluded that both socio-demographic and psychological variables, such as temperament and personality, are significant predictors of dangerous traffic behavior.
Prosocial competencies among adolescent siblings of the physically disabled
Authors: Perenc Lidia , Radochoński Mieczysław , Radochońska Anna
Published: October 2015

Background

The current study examined possible prosocial benefits of having a disabled sibling. Until now research has mainly focused on the negative effects of having a sibling with a disability. We hypothesized that regular and frequent interactions with a disabled person should result in an increase of positive attitude and empathy toward other people who are in a disadvantageous situation.

Participants and procedure

A sample of 208 students from public secondary schools (middle and high schools) completed the Polish version of the Prosocial Tendencies Measure (PTM) in order to assess the tendencies to prosocial behaviors in different conditions. Participants were between 13 and 18 years old. Ninety-six adolescents had a disabled sibling (group T) and 112 constituted the control group (group C).

Results

Results showed that group T generally scored higher than group C in the number of helping behaviors. Furthermore, girls scored higher than boys in anonymous prosocial behaviors. The older adolescents are more inclined to use helping behaviors both in anonymous and compliant situations than their younger colleagues.

Conclusions

Presence of disabled children in a family context may facilitate prosocial behavior in their non-disabled siblings. Older participants less frequently described themselves as prosocial in public situations. In contrast, younger adolescents reported weaker prosocial tendencies in anonymous and compliant situations. The effect of gender on prosocial tendencies was significant for public prosocial behavior, with a higher level achieved by males in this domain. Data analysis also showed significantly greater emotional and altruistic tendencies in females than in males.
How can we cooperate better? The determinants of conflict solving competence in Polish pediatric nurses’ relations with parents of hospitalized children
Authors: Chrzan-Dętkoś Magdalena , Pietkiewicz Agnieszka
Published: October 2015

Background

Our pilot study carried out at two Polish pediatric hospital departments revealed that conflicts with parents of hospitalized children represent the main concern of pediatric nurses. The aim of this study was to examine factors determining the conflict solving competence in pediatric nurses in order to develop effective communication training programs for pediatric ward staff.

Participants and procedure

A total of 78 pediatric nurses completed measures of occupational and perceived stress, conflict modes and competence in solving conflicts with parents of hospitalized children.

Results

The key factor influencing conflict solving competence was the level of perceived stress and supervisor support.

Conclusions

Systemic supervised activities aimed at reducing the level of stress, e.g. Balint groups or reflective supervision, could be helpful in mastering the conflict solving competences. Also a paradigm shift from the individual patient to his/her family considered as a patient could potentially improve nurse-parent relations.