bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation of stabilizing plate therapeutic effects of different types of temporomandibular disorders - painful evolution of patients treated in a reference center
Authors: Cordeiro Patricia Cataldo de Felipe , Bonato Letícia Ladeira , Dias Isabela Maddalena , Guimarães Josemar Parreira 
Published: May 2015

Objective: Evaluation of the symptomatic outcome of patients of various types of TMD treated exclusively with stabilizing plate for a period of three months patients comparing painful muscle and joint symptoms , and clinical aspects , both before and after treatment periods . Material and methods: A retrospective study of medical records of 628 rescue the last ten years (2004-2013 ) of subjects treated at the Serviço de Diagnóstico e Orientação a pacientes com Desordem Temporomandibular (Serviço ATM), Faculty of Dentistry/UFJF. The sample was divided into subgroups distinct diagnoses, in which the evaluation of symptomatic progression of patients through the analysis of pain scores, measuring the amplitude of mouth opening and the presence of joint sounds was performed. Data were obtained in early stages and after treatment with stabilizing plate. Results: The group of individuals diagnosed with muscular disorder (47.45% ) and those with multiple diagnoses ( 3.34 % ) had a higher prevalence of chronic orofacial pain ( 90.26 % and 95.23 % ) . The remission of painful symptoms was visible in groups accompanied by increased amplitude of mouth opening. Additional way, we obtained reduction joint sounds in patients with intracapsular and degenerative disorders, respectively. Conclusion: The stabilizing plate has shown efficacy in various types of temporomandibular disorders evaluated. However, in an attempt to encompass all etiological factors in therapy, emphasizes the importance of multidisciplinary therapies for the treatment of temporomandibular disorders.
Adhesion to eroded dentin submitted to different surface treatments
Authors: Ramos Oliveira Thayanne Monteiro , Ramos Thaysa Monteiro , Garbui Bruna Uglik , Hanashiro Fernando Seishim , De Freitas Patricia Moreira 
Published: May 2015

Objective: This in vitro study measured the microshear bond strength (µSBS) of a composite resin to sound and artificially eroded dentin, submitted to surface treatment with diamond bur (DB) or Er,Cr:YSGG laser (L). Material and Methods: Bovine dentin samples were randomly divided into six groups (n=11): G1-sound dentin, G2-eroded dentin, G3-eroded dentin treated with Er,Cr:YSGG laser at 1.5W, G4-eroded dentin treated with Er,Cr:YSGG laser at 2.0W, G5-eroded dentin treated with Er,Cr:YSGG laser at 2.5W and G6-eroded dentin treated with diamond bur. Erosive cycling was performed by immersion in 0.05M citric acid (pH2.3;10min; 6x/day) and in remineralizing solution (pH7.0, 1h, between acid attacks), for 5 days. Three composite resin cylinders were bonded to the samples and after 24h storage in distilled/deionized water (37oC), samples were submitted to microshear bond strength test and mean values (MPa) were analyzed by one-way ANOVA and Tukey tests (?=0.05). Results: G1 (19.9±7.6) presented the highest µSBS mean followed by G6 (12.2±3.8), which showed no statistically significant difference compared with the other groups, except from G4. The lowest µSBS value was found for G4 (7.1±1.5), which did not differ statistically from G2 (7.5±1.8), G3 (8.4±1.8) and G5 (8.6±3.2). Analysis of the fracture pattern revealed a higher incidence of adhesive fractures for all experimental groups. Conclusion: The results indicate that Er,Cr:YSGG laser at the parameters used in this in vitro study did not enhance composite resin bonding to eroded dentin.
Prevalence of impacted canines among sudanese university students
Authors: Mustafa Raja , Abuaffan Amal 
Published: May 2015

Objectives: To determine the prevalence of impacted canines among 17-25 year old Sudanese University students. Materials and Methods: Descriptive cross-sectional study in University of Khartoum, Sudan. 2401 students were selected according to random stratified sampling technique and screened under natural day light. All students with un erupted permanent canines were referred to the Orthodontic Department for clinical examination and radiographic investigations. Results: Forty nine students (2%), 10 males and 39 females out of 2401 students were reported to have at least one impacted canine. Males to females ratio was approximately 1:4. Impacted canines were more common in the maxilla (1.6%) than in the mandible (0.33%). Majority of the cases with impacted canines (73.5%) had unilateral impaction p<0.05, whereas 24.5 % had bilateral impactions and only 2% had three impacted canines. location of the impaction either: palatal, Buccal or in the line of arch and the palatal impactions were the most common one (45%), whereas buccal and in the line of arch impaction were found in 20% and 35% respectively. Retained deciduous canines were observed in most of the cases with impacted canines (81.6%). Conclusion: Prevalence of impacted canines was noticeable and comparable to the findings reported in other populations. The study gives a clue about the magnitude of the problem. However, strong conclusion can not be drawn since the sample is not representative to the whole Sudanese population. Further study is essential for a great sample from different provinces of the Sudan in order to draw a real conclusion.
Color stability of artificial teeth after exposure to acid and staining agents
Authors: Reggiani Mateus Guimaraes Lage , Feitosa Fernanda Alves , De Araújo Rodrigo Máximo 
Published: May 2015

Objective: Changes in color of artificial teeth mainly occur due to ingestion of beverages and use of products for cleaning and disinfection. The more aggressive solutions must be identified and the patient provided with explanations in order to avoid or reduce the frequency of their use, to a higher longevity of the denture. The purpose of this study was to evaluate the changes in color of artificial teeth before and after immersion in beverages and disinfectants. Material and Methods: 96 artificial resin teeth were randomly divided into 8 groups. Each group was immersed for 10 min into a test solution (coffee, lemon juice, chlorhexidine gluconate, red wine, cola-based soft drink, vinegar or antiseptic with and without alcohol) and then the specimens were stored in artificial saliva for 23 h and 50 min, completing a period of 24 h. This procedure was performed for 14 consecutive days and after this period the second color measurement was made.The data obtained with the spectrophotometer using the CIEL*a*b* system were statistically analyzed using ANOVA non parametric, Kruskal-Walis and the Dunn test. Results: There were found differences in color variation for each experimental group after the challenge. statistically significant differences were found between the coffee, red wine and lemon juice groups. Conclusion: All the substances changed the color of artificial teeth; coffee was the substance that caused most staining of artificial teeth, altering color and luminosity; the oral antiseptics with and without alcohol promoted whitening of the artificial teeth.Keywords: Artificial tooth; Denture; Oral rehabilitation; Staining.
Letna Dinamika Pojavljanja Vodnih Ptic Na Reki Dravi Med Mariborskim Jezerom In Jezom Melje (Sv Slovenija) / Yearly dynamics of waterbirds’ occurrence on the Drava River between Lake Maribor and Melje Dam (NE Slovenia)
Authors: Logar Katja , Božič Luka 
Published: May 2015

Abstract
Between April 2007 and April 2008, 40 systematic waterbird counts were conducted on the Drava River between Lake Maribor and the Melje Dam (length 8.5 km, area 155 ha) to determine the specific composition, abundance and seasonal dynamics of bird occurrence. Between October and May, counts were conducted every week, whereas between June and September they were carried out once every two weeks. In total, 26,803 individuals of 30 species were counted. The number of waterbirds and diversity of species were the highest from late December to late February, when more than 1,000 individuals were regularly present in the area. Waterbirds were distributed along the river unequally, with the highest number of birds present yearround in the city centre and in the first counting sector of Lake Maribor. The Mallard Anas platyrhynchos and Mute Swan Cygnus olor were recorded during every count, while occurrence frequency was greater than 50% in another 10 species. Dominant species in terms of percentage composition were Mallard, Black-headed Gull Chroicocephalus ridibundus, Coot Fulica atra, Mute Swan, Pochard Aythya ferina and Tufted Duck Ay. fuligula. Mute Swan and Mallard were the only breeding waterbirds in the study area. Both the total number of waterbirds and the highest daily total in the first two counting sectors were greater between October and March 1992/93 than in our study. The decline in numbers was the greatest for Mallard, Pochard and Tufted Duck, while an increase was noted in Mute Swan and Yellow-legged / Caspian Gull Larus michahellis / cachinnans. The total number of waterbirds and the number of some species in the study area were significantly higher than expected solely based on its length compared to the length of the lowland Drava in Slovenia (125.7 km). The study area is conservationally important for Pochard, Tufted Duck and Black-headed Gull
The first comprehensive estimate of the winter population of the White-tailed Eagle Haliaeetus albicilla along the Danube/ Prva celostna ocena zimske populacije belorepca Haliaeetus albicilla vzdolž Donave
Authors: Probst Remo , Bogdea Larisa , Bandacu Dan S. , Bohuš Mirko , Cheshmedzhiev Svilen , Gáborik Ákos , Geissler Siegfried , Hodor Calin V. , Ionescu Dan T. , Koev Veselin , Mikuska Tibor , Nagy Zsolt , Parrag Tibor , Rožac Vlatko , Schmidt Matthias , Schneider Thomas , Šćiban Marko , Tatai Sándor , Todorov Emil , Tomik Adrian , Tucakov Marko , Váczi Miklós , Frank Georg 
Published: May 2015

Abstract
In January 2014, the first ever comprehensive winter census of the Whitetailed Eagle Haliaeetus albicilla along the Danube River was conducted, using mostly point and transect counts. Altogether, 550-700 eagles were counted. The upper range of the estimate may in fact be more realistic because 615 km of the Danube were not surveyed. Birds were observed in every country along the Danube. Hotspots of occurrences were (1) the Central Danube floodplains - the area encompassing the lower Hungarian section (Danube- Drava National Park), Kopački rit Nature Park (Croatia), and the Gornje Podunavlje Special Nature Reserve (Serbia); and (2) the Danube Delta Biosphere Reserve. According to the Action Plan for the conservation of the White-tailed Eagle along the Danube, future winter counts should be made regularly, and lower variation in the resulting eagle numbers achieved by a higher degree of synchronization between individual countries. This study reinforces the importance of protected areas along the Danube as a backbone for the conservation of White-tailed Eagles and biodiversity.
Spremembe v avifavni Kozjanskega parka med letoma 1999 in 2010: velik upad števila travniških ptic/ Changes in the avifauna of Kozjansko Park between 1999 and 2010: a large decline in the number of grassland birds
Authors: Kmecl Primož , Jančar Tomaž , Mihelič Tomaž 
Published: May 2015

Abstract
In the 11 years between 1999 and 2010, certain groups of birds inhabiting Kozjansko Regional Park underwent a moderate or large decline. Composite indices for indicator species of different habitat types showed an increase of generalist species (composite index 108.3), a moderate decline of forest species (composite index 76.6) and species of extensively managed orchards (composite index 76.4), and a large decline of farmland (composite index 62.8) and grassland species (composite index 8.7). Our study was based on a census using line transects with an inner and outer belt. Randomly distributed line transects with a total length of 60.8 km were surveyed using the same method both in 1999 and 2010. The decline of farmland species mirrors the population trend of this group at the national level. The study area is protected by multiple nature conservation mechanisms. It is protected as a regional park and partly as a Natura 2000 site. These mechanisms, however, do not seem to be functioning here. We believe the large decline of grassland species is a consequence of agricultural policy, which favours a decrease of extensively managed grasslands.
Effects of overgrowing at Cerknica Polje (southern Slovenia) on breeding farmland birds/ Vpliv zaraščanja Cerkniškega polja (južna Slovenija) na gnezdilke kmetijske krajine
Authors: Bordjan Dejan , Bordjan Ana 
Published: May 2015

Abstract
Agriculture has a great impact on biodiversity in Europe. Populations of farmland birds are declining due to both intensification and abandonment of agriculture. The purpose of this study was to determine the effects of overgrowing on the diversity of birds at Cerknica Polje. Six vegetation types were identified on eight survey plots (15.2-31.6 ha each): Short grass - regularly mown wet meadows; Tall herbs - stands of Common Reed Phragmites australis and Reed Canary Grass Phalaris arundinacea; Sparse bushes - stands of low woody plants; Dense bushes - dense stands of bushes; Meadows with trees - mown meadows with scattered trees; Bushes with trees - hedges, trees and dense stands of bushes. In total, 34 species were registered. The heterogeneity of vegetation types correlated positively with the heterogeneity of bird species. The highest density of breeding territories and species was established in Bushes with trees, the lowest in Short grass. No species were registered in all vegetation types, and only Tree Pipit was recorded in five out of six types. Twelve species were registered in only one vegetation type. Cerknica Polje is an important breeding locality for species with the highest breeding density at the national level (e.g. Corncrake Crex crex, Curlew Numenius arquata, Skylark Alauda arvensis, Whinchat Saxicola rubetra, Sedge Warbler Acrocephalus schoenobaenus). These species breed in specific habitats with different stages of succession. A managing plan for the area should therefore combine abandoned plots in different stages of succession and large regularly mown areas. Abandonment of agriculture at Cerknica Polje has led to the emergence of areas with bushes in different succession stages. Efforts should be directed at preserving large complexes of mown wet meadows.
Design of inverse kinematics algorithms: extended Jacobian approximation of the dynamically consistent Jacobian inverse
Authors: Ratajczak Joanna 
Published: May 2015

Abstract
The paper presents the approximation problem of the inverse kinematics algorithms for the redundant manipulators. We introduce the approximation of the dynamically consistent Jacobian by the extended Jacobian. In order to do that, we formulate the approximation problem and suitably defined approximation error. By the minimization of this error over a certain region we can design an extended Jacobian inverse which will be close to the dynamically consistent Jacobian inverse. To solve the approximation problem we use the Cholesky decomposition and the Ritz method. The computational example illustrates the theory.
Introduction to the Integrated Domain Modeling Toolset
Authors: Slihte Armands , Cueva Lovelle Juan Manuel 
Published: May 2015

Abstract
This paper describes the Integrated Domain Modeling approach and introduces the supporting toolset as a solution to the complex domain-modeling task. This approach integrates artificial intelligence (AI) and system analysis by exploiting ontology, natural language processing (NLP), use cases and model-driven architecture (MDA) for knowledge engineering and domain modeling. The IDM toolset provides the opportunity to automatically generate the initial AS-IS model from the formally defined domain knowledge. In this paper, we describe in detail the scope, architecture and implementation of the toolset.
BrainTool v2.0 for Software Modeling in UML
Authors: Nikiforova Oksana , Kozacenko Ludmila , Ungurs Dainis , Ahilcenoka Dace , Bajovs Andrejs , Skindere Nadezda , Gusarovs Konstantins , Jukss Maris 
Published: May 2015

Abstract
It is a modern trend to develop a CASE tool for system modeling with an ability to transform models defined in different notations and also to generate a program code. Such a system modeling tool tries to bridge the gap between the system specification and the software components. A tool called BrainTool has been developed for generation of the UML diagrams from the initial presentation of problem domain by the two-hemisphere model. The paper presents the main components of BrainTool and compares it to other system modeling tools.
HTML5 in Development of Assessment Tasks for e-Learning
Authors: Synytsya Kateryna , Prokofyeva Natalya , Grocevs Aleksejs , Tomko Vladimirs 
Published: May 2015

Abstract
The paper describes various types of assessment tasks that are used in e-learning environments and studies the use of HTML5 in the development of user interface elements for e-learning systems. Popular existing practices of HTML5 user interface design are examined, and some examples relevant to e-learning environments are provided.
Experience in the development and operation of asynchronized turbogenerators and condensers in the Russian Power System
Authors: Shakaryan Yury , Sokur Pavel 
Published: May 2015

Abstract
Asynchronized (doubly-fed) machines with two (three) excitating winding and reversing excitation system allow to control vector of magnetomotive force. This solution allows separating regulation of the electromagnetic torque (active power) and voltage (reactive power). This paper describes the experience in the development and operation of asynchronized turbogenerators and condensers.
Stator windings condition diagnosis of voltage inverter-fed induction motor in open and closed-loop control structures
Authors: Wolkiewicz Marcin , Tarchała Grzegorz , Kowalski Czesław T. 
Published: May 2015

AbstractThis paper deals with detection of the stator windings shorted turns in an induction motor drive working under open (scalar) and closed loop (Direct Field Oriented DFO) control structures. In order to detect the early stage of stator winding fault, the analysis of symmetrical and principal components of stator voltages and currents is used. Experimental results obtained from a specially prepared induction motor are presented.
Optimization of Side Feeders Systems by Means of Simulation of Solidification
Authors: Perzyk M. , Kozlowski J. , Mazur M. , Szymczewski K. 
Published: May 2015

Abstract
Simulation software can be used not only for checking the correctness of a particular design but also for finding rules which could be used in majority of future designs. In the present work the recommendations for optimal distance between a side feeder and a casting wall were formulated. The shrinkage problems with application of side feeders may arise from overheating of the moulding sand layer between casting wall and the feeder in case the neck is too short as well as formation of a hot spot at the junction of the neck and the casting. A large number of simulations using commercial software were carried out, in which the main independent variables were: the feeder’s neck length, type and geometry of the feeder, as well as geometry and material of the casting. It was found that the shrinkage defects do not appear for tubular castings, whereas for flat walled castings the neck length and the feeders’ geometry are important parameters to be set properly in order to avoid the shrinkage defects. The rules for optimal lengths were found using the Rough Sets Theory approach, separately for traditional and exothermic feeders.
Structure and Mechanical Properties of AlSiCuMg Alloy after Thermo Processing
Authors: Piątkowski J. , Kamiński P. 
Published: May 2015

Abstract
In the dissertation it has been shown, that so called „time-thermal treatment” (TTT) of the alloy in liquid state, as overheating the metal with around 250°C above the Tliq. and detaining it in this temperature for around 30 minutes, improves the mechanical properties (HB, Rm, R0,2). It was ascertained, that overheating the AlSi17Cu5Mg alloy aids the modification, resulting with microcrystalline structure. Uniform arrangement of the Si primeval crystals in the warp, and α(Al) solution type, supersaturated with alloying elements present in the base content (Cu, Mg) assures not only increased durability in the ambient temperature, but also at elevated temperature (250°C), what is an advantage, especially due to the use in car industry.
Porosity of Castings Produced by the Vacuum Assisted Pressure Die Casting Method
Authors: Zyska A. , Konopka Z. , Łągiewka M. , Nadolski M. 
Published: May 2015

Abstract
The paper presents the results of investigations concerning the influence of negative (relative) pressure in the die cavity of high pressure die casting machine on the porosity of castings made of AlSi9Cu3 alloy. Examinations were carried out for the VertaCast cold chamber vertical pressure die casting machine equipped with a vacuum system. Experiments were performed for three values of the applied gauge pressure: -0.3 bar, -0.5 bar, and -0.7 bar, at constant values of other technological parameters, selected during the formerly carried initial experiments. Porosity of castings was assessed on the basis of microstructure observation and the density measurements performed by the method of hydrostatic weighing. The performed investigation allowed to find out that - for the examined pressure range - the porosity of castings decreases linearly with an increase in the absolute value of negative pressure applied to the die cavity. The negative pressure value of -0.7 bar allows to produce castings exhibiting porosity value less than 1%. Large blowholes arisen probably by occlusion of gaseous phase during the injection of metal into the die cavity, were found in castings produced at the negative pressure value of -0.3 bar. These blowholes are placed mostly in regions of local thermal centres and often accompanied by the discontinuities in the form of interdendritic shrinkage micro-porosity. It was concluded that the high quality AlSi9Cu3 alloy castings able to work in elevated temperatures can be achieved for the absolute value of the negative pressure applied to the die cavity greater than 0.5 bar at the applied set of other parameters of pressure die casting machine work.
Ocena Nośności Konstrukcji Nawierzchni Lotniskowych Metodą Acn-Pcn
Authors: Wesołowski Mariusz , Blacha Krzysztof 
Published: May 2015

Abstract
Konstrukcje nawierzchni lotniskowych są projektowane na określony okres eksploatacji przy założeniu prognozowanego natężenia i struktury ruchu lotniczego. Bezpieczeństwo wykonywania operacji lotniczych przez statki powietrzne na nawierzchniach lotniskowych zależy przede wszystkim od stanu nośności ich konstrukcji. W związku z tym, kontrolne badania nośności należy przeprowadzać okresowo, gdyż informacja o aktualnym stanie eksploatacyjnym nawierzchni lotniskowej stanowi podstawę do podejmowania decyzji o rodzajach statków powietrznych dopuszczonych do ruchu, intensywności ruchu lotniczego oraz terminach rozpoczęcia prac remontowych lub modernizacyjnych. Aktualnie do oceny nośności nawierzchni lotniskowych stosuje się metodę ACN-PCN, która została wprowadzona przez Organizację Międzynarodowego Lotnictwa Cywilnego ICAO (International Civil Aviation Organization). W artykule przedstawiony został sposób wyznaczania i opisu wskaźnika PCN