bluuebunny/crossref_metadata_2025 huggingface dataset:
Am Rand der Autobiographie
Authors: Volkening Heide
Published: May 2015

Jeder Autobiograph agiert als sein eigener Ghostwriter. Indem er seine Lebensgeschichte schreibt, spaltet er sich auf in das Subjekt der Geschichte und in deren Verfasser. Ausgehend von der Dissoziation in Beschriebenen und Schreibenden, in bios und graphie wird ein Modell des Ghostwriting entwickelt, mit dem das Problem der Referentialität des autobiographischen Textes literaturtheoretisch und narratologisch neu formuliert werden kann. Was bedeutet es für die Gattungsdiskussion der Autobiographie, wenn diese keinen Autor, sondern nur einen Ghostwriter hat? Wie läßt sich das Verhältnis von Autorschaft und Ghostwriting urheberrechtlich und literaturwissenschaftlich fassen? Welche Beziehungen bestehen zwischen dem Ghostwriter und dem Geschlecht des Verfassers? Wer erzählt und wer signiert die Autobiography of Alice B. Toklas? Kann Hannah Arendt in der Lebensgeschichte einer deutschen Jüdin aus der Romantik die Autobiographie Rahel Varnhagens schreiben?
Local Knowledge and Gender in Ghana
Authors: Müller Christine
Published: May 2015

The emergence of global knowledge societies is recently questioning the meaning and relevance of local knowledge in the context of Southern countries. Women have proved to be the central actors in the multiple channels of local-global networking, using these new social ties for the negotiation of old and new elements of knowledge, scientific knowledge and development discourses. The inherent politicisation of knowledge and the direct objective of transforming societal institutions are not only signs of resistance against global hegemony, but serve for a new definition and for a defence of local culture and of local knowledge.
Theater und Internet
Authors: Glesner Julia
Published: May 2015

Theater unter der »net_condition« findet ohne die physische Kopräsenz der Teilnehmer statt. Ausgehend von dieser These demonstriert Julia Glesner, wie Internet Performances als Agens und Beispiel kultureller Transformationen die »Exzentrizität des Menschen« (Plessner) unter den Bedingungen des Internets inszenieren und damit körperliche Erfahrungen ermöglichen, die sich mit der Ambivalenz des Technischen produktiv auseinander setzen. Mit »Theater und Internet« liegt die erste Veröffentlichung vor, die theatrale Produktionen im Internet untersucht. Die Autorin schließt dabei sowohl textbasierte Internet Performances als auch Internet Performances auf Basis visuell und auditiv übertragender Technologien in ihre Überlegungen ein und entwickelt eine übergreifende Perspektive auf diese neue Form performativer Medienkunst. Neben einem Überblick über das Phänomen entwickelt die Arbeit methodisch-theoretische Parameter, die es ermöglichen, Internet Performances aus anthropologischer Perspektive als Konvergenzpunkt von Kultur und Technologie im beginnenden 21. Jahrhundert zu verstehen.
Die Kunst des Möglichen I
Authors: Hubig Christoph
Published: May 2015

Ein großer Teil herkömmlicher Technikphilosophien basiert auf naturalistisch-anthropologischen Grundvorstellungen oder Handlungskonzepten, die bereits nach einem Grundmuster von Technik modelliert und insofern »technomorph« sind. Sie reflektieren nicht den eigenen Standpunkt. Die vorliegende Untersuchung ist der Frage gewidmet, inwiefern die Technizität unserer Weltbezüge hintergehbar ist bzw. was uns wie veranlasst, den Möglichkeitshorizont des Technischen näher zu erschließen. Als »Medialität des Technischen« ist dieser Gegenstand historischer und systematischer Analysen, die im ersten Band die theoretischen, im zweiten die praktischen Aspekte der Fragestellung behandeln. Dabei werden die qualitativen Veränderungen herausgestellt, die die modernen Hochtechnologien aufweisen.
Islamischer Religionsunterricht in Europa
Authors: Mohr Irka-Christin
Published: May 2015

Islamischer Religionsunterricht ist ein Instrument der Institutionalisierung des Islam in Europa. Lehrtexte aus Deutschland, Österreich und den Niederlanden transportieren, wie muslimische Lehrplaner_innen ihre Religion für die Schule organisieren und welche Angebote sie der nachwachsenden Generation machen, sich in den europäischen Gesellschaften zu verorten. Für die erste Generation von Lehrtexten für den islamischen Religionsunterricht gilt, dass es zuallererst didaktische und weniger theologische Entscheidungen sind, die den Islam für Schule und Unterricht reformieren - und dies stillschweigend.
MassenMedium Fernsehen
Authors: Bartz Christina
Published: May 2015

Unter den Begriff Massenmedium fasst man gemeinhin Mittel zur Adressierung eines unbegrenzten Empfängerkreises. Diese Definition vergisst jedoch die Semantik der Masse, die in die Wortbildung eingeht und bis heute gesellschaftsweite Vorstellungen über die Funktionsweise von Massenmedien bestimmt. Dabei verweist der Masse-Begriff vor allem auf einen spezifischen Rezeptionsmodus. Das Buch untersucht, wie massenpsychologische Konzepte seit Gustave Le Bon das Wissen über Massenmedien und ihre Rezipienten konturieren. Ebenso zeigt es auf, welche Vorstellungen von Medien die Massentheorie bereithält.
Das Trauerspiel-Buch
Authors: Menke Bettine
Published: May 2015

Dieses Buch behandelt Walter Benjamins »Ursprung des deutschen Trauerspiels« (1928) und zeigt, dass mit ihm gearbeitet werden sollte. Stand bisher vor allem Benjamins »Erkenntniskritische Vorrede« im Fokus, so wird das »Trauerspiel«-Buch hier als materiale Untersuchung in Bezug auf vier Themen - Trauerspiel und Tragödie, Souverän und Märtyrer, Melancholie sowie Allegorie - gelesen, deren konstellativer Zusammenhang sich u.a. in Hinsicht auf Politische Theologie, Repräsentation, Trauer und Komik, Theatralität und die Problematik des Spiels erschließt. Somit erscheint Benjamins Buch nicht nur als wichtiger Beitrag zur Barockforschung, sondern rückt in den Zusammenhang jüngerer Diskussionen, die u.a. mit den Namen Derrida, Foucault, Agamben oder Marin verbunden sind.
Stabile Gemeinschaften
Authors: Zoll Katharina
Published: May 2015

Hinter Schlagworten wie Globalität, Globalisierung und Weltgesellschaft verbergen sich mitunter wohlfeile theoretische Konzepte, die jedoch oftmals den gesellschaftlichen Inhalt - die Gesellschaft und die Gesellschaftlichkeit konstituierenden Akteure - nicht im Blick haben. Im Mittelpunkt dieses Buches stehen daher die durch die ›Globalisierung‹ veränderten sozialräumlichen Beziehungen. Grenzüberschreitende Interaktionsformen bestimmen den Alltag von immer mehr Menschen und ihren Familien. Das Phänomen der räumlich dislozierten, d.h. transnationalen Familie ist in der sozialwissenschaftlichen Forschung jedoch noch weitgehend eine Terra incognita. Kann sie die zunehmend global vernetzte Infrastruktur, die Transport- und Kommunikationsmedien, für sich nutzen, um Distanzen zu überbrücken - wodurch die familiären Bindungen aufrechterhalten oder gestärkt werden können? Hierbei geht es auch um die Frage, ob transnationale Familien als Bestandteil einer sich formierenden Weltgesellschaft angesehen werden können. Mit einem Vorwort von Jens Becker.
Familiensoziologie
Authors: Schmidt Uwe , Moritz Marie-Theres
Published: May 2015

Der Band bietet eine übersichtliche Einführung in zentrale Gegenstandsbereiche der Familiensoziologie. Es werden sowohl ein zeitgeschichtlicher Überblick über die Entwicklung von familiensoziologischen Themen gegeben als auch wichtige familiensoziologische Theorien in verständlicher Form behandelt. Berücksichtigt werden insbesondere aktuelle Forschungsfelder, wie moderne Familien- und Lebensformen, aber u.a. auch das soziale und ökologische Umfeld von Familien. Die Einführung richtet sich an Studierende und Forschende, die einen fundierten Überblick zum Thema suchen.
Kultur
Authors: Moebius Stephan
Published: May 2015

»Kultur« ist fächerübergreifend einer der zentralen Schlüsselbegriffe gegenwärtiger Forschungen. Haben kulturtheoretische Fragestellungen bereits um 1900 im Mittelpunkt der Soziologie gestanden, so ist »Kultur« schließlich seit dem Cultural Turn im letzten Drittel des 20. Jahrhunderts zum allgemeinen Leitbegriff der Geistes- und Sozialwissenschaften avanciert, die sich zunehmend als »Kulturwissenschaften« verstehen. Dieser Einführungsband, der erste für die Kultursoziologie im deutschsprachigen Raum, gibt einen systematischen Überblick über die Geschichte, Begriffe, Ansätze und Forschungsfelder der Kultursoziologie, angefangen bei den soziologischen Klassikern wie Max Weber und Georg Simmel bis hin zu aktuellen Kulturtheorien und Kulturforschungen wie den Visual, Governmentality oder Cultural Studies.
Remake | Premake
Authors: Oltmann Katrin
Published: May 2015

Remakes gibt es, seit es das Kino gibt. Dennoch ist das Phänomen von den Filmwissenschaften bislang weitgehend ignoriert worden - zu Unrecht, wie diese Studie mit einer innovativen Kombination von Gender Studies und New Historicism zeigt. Als rewriting eines kulturellen Textes tritt ein Remake in komplexe Verhandlungen mit seinem Vorgängerfilm; auf seiner Kontrastfolie lässt sich das Spezifische des Premakes präzise konturieren (und vice versa). Das Buch liefert eine umfassende Studie des filmischen Verfahrens in Hollywood und illustriert in drei Beispielanalysen, wie das Zusammenspiel von Ähnlichkeit und Differenz die Analyse sich wandelnder Gender-Diskurse ermöglicht.
Potential Adverse Biological Effects of Excessive Exercise and Overtraining Among Healthy Individuals
Authors: Delimaris Ioannis
Published: May 2015

Background. A growing body of research has investigated the potential health risks of excessive exercise on human health. There is now a clear need for an up-to-date, critical synthesis of reliable findings on this topic.

Objective. To determine the potential adverse biological effects of excessive exercise and overtraining among - initially - healthy men and women. Design. Brief review. Material and method. In order to identify relevant studies, the electronic database Medline was searched using the following terms/key words: “excessive exercise” OR “overtraining”” AND “adverse effects”. Studies had to: a) be written in English, b) published from January 1980- March 2014, and c) involve healthy men and women (individuals with no pre-existing medical conditions). Results and discussion. The main adverse effects associated with excessive exercise and overtraining among healthy individuals were musculoskeletal injuries, adverse cardiovascular effects, exercise-induced muscle damage, exerciserelated alterations of immunity, exercise-related reproductive dysfunction, chronic negative energy balance, osteoporosis, and sleep disorders. Conclusions. The findings of the present study suggest that excessive exercise and overtraining can have serious health consequences. Sports physicians, trainers and health educators should be aware of these risks and advise the people accordingly. Further research needs to be carried out in this area, including high quality trials.
Formulation and characterization of solid lipid nanoparticles, nanostructured lipid carriers and nanoemulsion of lornoxicam for transdermal delivery
Authors: Gönüllü Ümit , Üner Melike , Yener Gülgün , Karaman Ecem Fatma , Aydoğmuş Zeynep
Published: May 2015

Solid lipid nanoparticles (SLN), nanostructured lipid carriers (NLC) and nanoemulsion (NE) of lornoxicam (LRX) were prepared for the treatment of painful and inflammatory conditions of the skin. Compritol® 888 ATO, Lanette® O and oleic acid were used as solid and liquid lipids. SLN, NLC and NE were found physically stable at various temperatures for 6 months. Case I diffusional drug release was detected as the dominant mechanism indicating Fickian drug diffusion from nanoparticles and nanoemulsion. The highest rate of drug penetration through rat skin was obtained with NE followed by NLC, SLN and a gel formulation. Nanoformulations significantly increased drug penetration through rat skin compared to the gel (p < 0.05). Thus, SLN, NLC and NE of LRX can be suggested for relieving painful and inflammatory conditions of the skin
Redke vrste ptic v sloveniji v letu 2013 – Poročilo Nacionalne komisije za redkosti / Rare birds in Slovenia in 2013 – Slovenian Rarities Committee's Report
Authors: Hanžel Jurij
Published: May 2015

This report by the Slovenian Rarities Committee presents records of rare bird species in Slovenia in 2013, with some addenda for previous years. The numbers in brackets refer to the number of records (first number) and individuals (second number), recorded between 1 Jan 1950 and 31 Dec 2012. Since 1 Jan 2013, submission to the Committee is required for 37 additional species, 17 of which are regional rarities. Records of these species are not numbered, since records from previous years were not collected by the Committee. Four new species were recorded in category A: White-headed Duck Oxyura leucocephala, Baillon’s Crake Porzana pusilla, Audouin’s Gull Larus audouinii and Siberian Rubythroat Calliope calliope. Three species, Helmeted Guineafowl Numida meleagris, Chukar Alectoris chukar and Common Bulbul Pycnonotus barbatus, were added to category E. Other notable observations were the second and third records of Bewick’s Swan Cygnus columbianus and fourth record of Dalmatian Pelican Pelecanus crispus. The list of birds recorded in Slovenia (as of 31 Dec 2013) contains 384 species (369 in category A, 7 in category B, 8 exclusively in category C; 4 species are both in categories A and C). Category D contains 6 species, while category E contains 33. These two categories are not part of the list
Gnezdilke Parka Škocjanske jame (Kras, JZ Slovenija)/ The breeding birds of Škocjan Caves Park (Kras, SW Slovenia)
Authors: Figelj Jernej , Kmecl Primož
Published: May 2015

The aim of the study done in 2011 and 2012 was to identify the number of breeding bird species, to provide population estimates as well as to evaluate the conservational importance of Škocjan Caves Park for birds. Common bird species were surveyed using the territory mapping method. Rare species and nocturnally active species were surveyed using species-specific methods: observation, the playback method and the line transect method. 81 species were registered, 49 of which bred within the boundaries of the Park. The most abundant breeding species were Blackcap Sylvia atricapilla (260-320 breeding pairs), Robin Erithacus rubecula (250-310 breeding pairs), Blackbird Turdus merula (230-280 breeding pairs), Chaffinch Fringilla coelebs (230-280 breeding pairs) and Marsh Tit Poecile palustris (200-240 breeding pairs). Qualifying species for the Special Protected Area (SPA) Kras (SI5000023) also bred within the Park: Peregrine Falcon Falco peregrinus, Nightjar Caprimulgus europaeus, Scops Owl Otus scops and Woodlark Lululla arborea. Eagle Owl Bubo bubo was also registered, but breeding attempts during the study period were unsuccessful due to the negative influence of several factors. One of the largest colonies of Alpine Swifts Apus melba, a rare and localized species in Slovenia, is also of conservation concern.
Dynamic model of nuclear power plant steam turbine
Authors: Kulkowski Karol , Kobylarz Anna , Grochowski Michał , Duzinkiewicz Kazimierz
Published: May 2015

The paper presents the dynamic multivariable model of Nuclear Power Plant steam turbine. Nature of the processes occurring in a steam turbine causes a task of modeling it very difficult, especially when this model is intended to be used for on-line optimal process control (model based) over wide range of operating conditions caused by changing power demand. Particular property of developed model is that it enables calculations evaluated directly from the input to the output, including pressure drop at the stages. As the input, model takes opening degree of valve and steam properties: mass flow and pressure. Moreover, it allows access to many internal variables (besides input and output) describing processes within the turbine. The model is compared with the static steam turbine model and then verified by using archive data gained from researches within previous Polish Nuclear Power Programme. Presented case study concerns the WWER-440 steam turbine that was supposed to be used in Żarnowiec. Simulation carried out shows compliance of the static and dynamic models with the benchmark data, in a steady state conditions. Dynamic model also shows good behavior over the transient conditions.
Influence of magnetic anisotropy on flux density changes in dynamo steel sheets
Authors: Mazgaj Witold , Szular Zbigniew , Warzecha Adam
Published: May 2015

Magnetic measurements, carried out by means of the Epstein frame, have shown that most typical dynamo steel sheets have certain anisotropic properties. In numerical analysis, anisotropic properties are taken into account with the use of the special function of the grain distribution in the given dynamo sheet. For engineering purposes, it is desirable to assess the influence of these properties on the changes of the magnetic flux density in typical dynamo steel sheets, especially during the rotational magnetization. For this purpose, measurements of the flux density changes and field strength changes in the circular-shaped samples of two selected typical dynamo sheets were performed. These measurements were carried out for several values of the current flowing in windings which generated the axial or rotational magnetic field in the test dynamo sheet. The influence of the magnetic anisotropy on the magnetization process was briefly discussed for both types of the magnetization processes.
Multi-harmonic approach to determine load dependent local flux variations in power transformer cores
Authors: Riemer Björn , Hameyer Kay
Published: May 2015

This paper presents a methodology for the calculation of the flux distribution in power transformer cores considering nonlinear material, with reduced computational effort. The calculation is based on a weak coupled multi-harmonic approach. The methodology can be applied to 2D and 3D Finite Element models. The decrease of the computational effort for the proposed approach is >90% compared to a time-stepping method at comparable accuracy. Furthermore, the approach offers a possibility for parallelisation to reduce the overall simulation time. The speed up of the parallelised simulations is nearly linear. The methodology is applied to a single-phase and a three-phase power transformer. Exemplary, the flux distribution for a capacitive load case is determined and the differences in the flux distribution obtained by a 2D and 3D FE model are pointed out. Deviations are significant, due to the fact, that the 2D FE model underestimates the stray fluxes. It is shown, that a 3D FE model of the transformer is required, if the nonlinearity of the core material has to be taken into account.
Improved modeling of new three-phase high voltage transformer with magnetic shunts
Authors: Chraygane M. , El Ghazal N. , Fadel M. , Bahani B. , Belhaiba A. , Ferfra M. , Bassoui M.
Published: May 2015

This original paper deals with a new approach for the study of behavior in nonlinear regime of a new three-phase high voltage power supply for magnetrons, used for the microwave generators in industrial applications. The design of this system is composed of a new three-phase leakage flux transformer supplying by phase a cell, composed of a capacitor and a diode, which multiplies the voltage and stabilizes the current. Each cell. in turn, supplies a single magnetron. An equivalent model of this transformer is developed taking into account the saturation phenomenon and the stabilization process of each magnetron. Each inductance of the model is characterized by a non linear relation between flux and current. This model was tested by EMTP software near the nominal state. The theoretical results were compared to experimental measurements with a good agreement. Relative to the current device, the new systemprovides gains of size, volume, cost of implementation and maintenance which make it more economical.
The Influence of Pressure Die Casting Parameters on the Castability of AlSi11-SiCp Composites
Authors: Konopka Z. , Zyska A. , Łągiewka M. , Nadolski M.
Published: May 2015

The paper presents the method of preparing a composite slurry composed of AlSi11 alloy matrix and 10 vol.% of SiC particles, as well as the method of its high-pressure die casting and the measurement results concerning the castability of the obtained composite. Composite castings were produced at various values of the piston velocity in the second stage of injection, diverse intensification pressure values, and various injection gate width values. There were found the regression equations describing the change of castability of the examined composite as a function of pressure die casting process parameters. The conclusion gives the analysis and the interpretation of the obtained results.
The Compositions: Biodegradable Material - Typical Resin, as Moulding Sands’ Binders
Authors: Major-Gabryś K. , Dobosz St. M. , Drożyński D. , Jakubski J.
Published: May 2015

The paper presents possibility of using biodegradable materials as parts of moulding sands’ binders based on commonly used in foundry practice resins. The authors focus on thermal destruction of binding materials and thermal deformation of moulding sands with tested materials. All the research is conducted for the biodegradable material and two typical resins separately. The point of the article is to show if tested materials are compatible from thermal destruction and thermal deformation points of view. It was proved that tested materials characterized with similar thermal destruction but thermal deformation of moulding sands with those binders was different.
Three Dimensional Morphology of β-Al5FeSi Intermetallics in AlSi Alloys
Authors: Mikołajczak P. , Ratke L.
Published: May 2015

Iron is the most common and detrimental impurity in casting alloys and has been associated with many defects. The main consequence of the presence or adding of iron to AlSi alloys is the formation Fe-rich intermetallics with especially deleterious β-Al5FeSi. β-Al5FeSi phases are most often called needles on 2D micro sections, whilst platelets in 3D geometry. The x-ray tomography results have demonstrated Ferich phases with shapes different from simple forms such as needles or platelets and presented bent and branched phases. β grown as complicated structure of bent and branched intermetallics can decrease feeding ability, strengthen pores nucleation and eutectic colonies nucleation leading to lower permeability of mushy zone and porosity in the castings.
Crystallization of AlSi17Cu5Mg Alloy after Time-thermal Treatment
Authors: Piątkowski J. , Kamiński P.
Published: May 2015

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 Tliq. and detailing it in temperature for 30 to 40 minutes has the influence on changing the crystallization parameters (Tliq., TEmin., TEmax., TE(Me), TSol.). It was ascertained, that overheating the AlSi17Cu5Mg alloy substantially above Tliq. results with microcrystalline structure. Evenly distributed in the eutectic warp primeval silicon crystals and supersaturated with alloying additives of base content (Cu, Mg, Fe) of α(Al) solution, ensures not only increase durability in ambient temperature, but also at elevated temperature (250°C), what due to it’s use in car industry is an advantage.
Abrasive Wear of Alloyed Cast Steels Applied for Heavy Machinery
Authors: Studnicki A. , Kondracki M. , Suchoń J. , Szajnar J. , Bartocha D , Wróbel T.
Published: May 2015

In the paper the results and analysis of abrasive wear studies were shown for two grades of cast steels: low-alloyed cast steel applied for heavy machinery parts such as housing, covers etc. and chromium cast steels applied for kinetic nodes of pin-sleeve type. Studies were performed using the modified in Department of Foundry pin-on-disc method.
Histamine and Antihistamines / Histamin i antihistamini
Authors: Stojković Nikola , Cekić Snežana , Ristov Milica , Ristić Marko , Đukić Davor , Binić Maša , Virijević Dragan
Published: May 2015

In recent years, there has been a steady increase in the prevalence of allergic diseases. Allergic immune response represents a complex network of cellular events involving numerous immune cells and mediators. It represents the interaction of innate and acquired immune response. The key role in the immune cascade is taken by histamine, a natural component of the body, which in the allergic inflammatory response is releasesd by the mast cells and basophils. The aim of this study was to highlight the role of histamine in allergic immunological events, their effect on Th1 and Th2 subpopulation of lymphocytes and the production of the corresponding cytokines, as well as the role of histamine blockers in the treatment of these conditions.

Histamine achieves its effect by binding to the four types of its receptors, which are widely distributed in the body. Histamine blockers block a numerous effects of histamine by binding to these receptors. As a highly selective second-generation antihistamine, cetirizine not only achieves its effects by binding to H1 receptors, but also attenuates numerous events during the inflammatory process. Knowledge of the effects of histamine blockers, including cetirizine, may lead to the selection of proper therapy for the treatment of allegic diseases.
Beneficial Effects of Green Tea Extract in Gentamicin-Induced Acute Renal Failure in Rats / Povoljni efekti ekstrakta zelenog čaja na akutnu bubrežnu insuficijenciju uzrokovanu gentamicinom kod pacova
Authors: Veljković Milica , Ilić Sonja , Stojiljković Nenad , Velicković Ljubinka , Pavlović Dragana , Radenković Mirjana , Branković Suzana , Kitić Dusanka , Ignjatović Marija Gocmanac
Published: May 2015

The aim of this study was to investigate whether green tea extract has beneficial effect on gentamicin-induced acute renal failure. The investigation was conducted on thirty-two Wistar rats divided into four groups of 8 animals each. Control (C) group received normal saline. GT group received green tea extract orally, 300mg/kg. GM group received gentamicin intraperitoneally, 100mg/kg and GT+GM group received both gentamicin and green tea extract.

Histological sections of kidney in GM group revealed necrosis of proximal tubules, vacuolization of cytoplasm and massive mononuclear inflammatory infiltrates in interstitium. Coadministration of green tea with gentamicin had renoprotective effect and showed only mild infiltrations, normal glomeruli and alleviated tubular degeneration. Analysis of biochemical parameters showed significantly higher urea and creatinine serum concentrations in GM group in comparison with C group and GT+GM group (p<0.001). Plasma lipid peroxidation biomarker MDA was significantly higher in GM group than those in C group (p<0.001), whereas the values for GT+GM group were significantly lower than MDA recorded for GM group (p<0.001).

Beneficial effects of green tea on gentamicin-induced nephrotoxicity is explained through decrease of oxidative stress and lipid peroxidation.Our results indicate that green tea administration has nephroprotective effect on oxidative stress and acute renal failure caused by gentamicin.
Comparing the Effects of Dexmedetomidine and Midazolam on Sedation in Children with Head Trauma to Perform CT in Emergency Department / Upoređivanje efekata deksmedetomidina i midazolama na sedaciju dece sa povredom glave radi snimanja CT-om na Odeljenju urgentne medicine
Authors: Derakhshanfar Hojjat , Bozorgi Farzad , Hosseini Adel , Noori Shamila , Mostafavi Abolfazl , Sharami Ali , Hashemi Seyyed Abbas
Published: May 2015

Many of the children referred to the emergency complain of head trauma. Children usually require sedition to reduce their failure and fear because of high activity and fear of performing computed tomography (CT). Dexmedetomidine and Midazolam belong to short-acting drugs for this purpose. This study aimed to compare the effect of the above mentioned drugs on sedition in children.

Children referred to the emergency department were randomly divided into two groups. Group A was sedated with 0.05 mg/kg IV Midazolam and group B with 2μg/kg IV Dexmedetomidine over 10 minutes (loading dose), and then repeat boluses 2μg/kg IV over 10 minutes. Measurements included induction time, recovery time, efficacy, side effects, complications, and failure with each drug and vital signs and RAMSY scale. SPSS V.20 was used for data analysis. p<0.05 was considered statistically significant.

Totally, 100 patients participated in the current study (44 girls and 56 boys). The mean and standard deviation of age was 5.3 ± 2.5 years. During the study, just 5 patients (10%) from group A did not have appropriate sedition following the injection of first dose of Midazolam and received the second dose. However, in B group patients no such case was reported. No significant difference was observed among blood pressure, heart rate, respiration and RAMSY Scale among the groups.

No significant difference was seen between efficacy of Midazolam and Dexmedetomidine in pediatric sedation. More research should be done for generalization of our findings .
Medical English Genres - Indispensable Tool for Effective Academic and Professional Communication / Žanrovi u engleskom jeziku za potrebe medicine: neophodno sredstvo za efikasnu akademsku i profesionalnu komunikaciju
Authors: Milosavljević Nataša , Antić Zorica
Published: May 2015

The English language is undoubtedly lingua franca of contemporary globalised world. Besides its widespread use in official communication among different countries, it has also huge impact within the borders of one country as well. Taking into account the fact that nowadays it represents the basic communicative tool in the field of medical science it has acquired both scientific and educational value. The concept of genre is a key term in medical communication and includes the written and spoken genres. International use of English in the field of medical science encompasses not only sheer transfer of new information and ideas but adoption of the well established features of written and spoken genres. However, it should be emphasized that these genres are at the same time dynamic and subject to changes in wider contexts surrounding this discipline.
Porosphaera globularis (Phillips, 1829) (Porifera, Calcarea) in the Campanian (Upper Cretaceous) of extra-Carpathian Poland
Authors: Jurkowska Agata , Świerczewska-Gładysz Ewa , Dubicka Zofia , Olszewska-Nejbert Danuta
Published: May 2015

The stratigraphical distribution of Porosphaera globularis, a common calcareous sponge in the Upper Cretaceous (mostly Campanian and Maastrichtian) of Poland was studied. The presented material, both new and from museum collections, comes from the Campanian of the Miechow Synclinorium, in southern Poland, and from the Lower Campanian of Mielnik in the south-eastern part of the Mazury-Podlasie Homocline, in eastern Poland. The significance of the species in extra-regional correlation, its palaeobiogeography and stratigraphical potential is critically reviewed.
The Effect Of Saline Mine Waters Discharge From Hard Coal Mine On The Ecological State Of The Vistula River
Authors: POLICHT-LATAWIEC Agnieszka
Published: May 2015

The aim of the study was to determine the influence of coal mine waters on water quality in the Vistula River. Water samples for laboratory analysis were collected in 2011 and 2012 on one kilometer long section of the river. Basic parameters were measured at the collection spot. The study asseses the dynamics of physicochemical water properties, fulfillment of the quality requirements necessary to introduce contaminated water into the river, water salinity, quality, and utility values. The study indicates that water quality of the Vistula River has been rapidly decreasing as a result of coal mine water introduction. Water becomes degraded, unfavourable for fish communities and unsuitable for use by people. Coal mine water contamination exceeds allowable pollution levels stated by legal regulations. Self-purification of the river is efficient as contamination levels decrease at the length of the examined section of the river.
Land Use Dataset Collection And Publication Based On Lucas And Hilucs
Authors: KLIMENT Marcel , KOČICA Jakub , KLIMENT Tomáš
Published: May 2015

Spatial data have become very important phenomena within the last decade in Europe due to a strong support from the political spectrum with regard to related legislation and resulting in financial support to several research, educational, and enlargement projects. INSPIRE (Infrastructure for Spatial Information in the European Community) Directive indeed defines the principles for the harmonization of spatial data infrastructure in the European community, including Land Use and Land Cover data themes. INSPIRE defines a methodology on how to transform datasets to common data models, but it does not cover the process of data collection and update, because it is out of its scope. Evaluation of the Land Use dataset derived from remote sensing products complemented by fieldworks has been realized since 2006 by Eurostat within the LUCAS (Land Use and Cover Area frame Survey) project. The work presented in this paper follows the LUCAS fieldwork methodology, which was applied during the fieldwork in July 2014 in the City of Zagreb (Croatia), to use at the local (municipal) geoportal level. The surveying groups collected point features with the following data type attributes: Land Use codes defined by HILUCS (Hierarchical INSPIRE Land Use Classification System) and optional Land Cover codes defined by LUCAS classification. In addition, photographs representing the observed areas were collected by cameras embedded in the mobile GIS platforms. An update of original topological layer was performed and Web GIS components for sharing the newly developed datasets were implemented. The results presented provide a suitable proposal for fieldworks methodology and updates of a land use database in line with the INSPIRE directive applicable at a local spatial data infrastructure level.
Healthy occupational culture for a worker-friendly workplace / Kultura zdravih organizacija – radna mjesta prijatelji radnika
Authors: Grabovac Igor , Mustajbegović Jadranka
Published: May 2015

Work has numerous health and wellbeing benefits, but it also involves physical hazards and psychological exertion. Today the scale has tipped toward psychosocial factors. Workers’ mental health affects their intellectual, emotional, and social growth, as well as work ability, productivity, and ultimately organisational productivity and competitiveness on the market. Even though companies may have an internal hierarchy that lowers stress at work, there are other formal and informal social processes that can affect (positively or negatively) the cohesion within the work unit. Safety culture of an organisation is a product of individual and group values, opinions, competences, and behavioural patterns that determine how occupational health and safety are implemented. Organisations that nurture positive safety culture understand the importance of health and safety and believe in prevention rather than dealing with consequences. Jobs that are stable, autonomous, and reasonably physically and psychologically demanding are far more likely to lower work-related stress and boost worker satisfaction. In fact, employee empowerment is one of the best ways to achieve good psychosocial health at the workplace.
Administration of Bioflavonoides Improves Plasma Levels of Adipocyte Hormones
Authors: Boncheva M. , Turnovska T.
Published: May 2015

Since time immemorial the fruits of aronia melanocarpa (rich of bioflavonoides) have been known for their medicinal properties. Present-day research of the pharmacological effects of aronia melanocarpa juice and fruits intake indicates that their high contents of anthocyanins is closely related to the health enhancing properties of this plant. This is a key fact which can be used in the prevention of most commonly spread, socially significant diseases, reducing for instance the total risk of cardio-vascular diseases. The great molecular variety anthocyanins possess and the role they play in cell metabolism, are still being investigated. This gives grounds to study the effects of Aronia melanocarpa on human cells, tissues, and organs. The aim of this study is to trace the effect of 150-200 ml aronia melanokarpa juice daily oral intake on the adipocyte hormones leptin (Lp), resistine (Rs) and adiponectin (Adn) blood levels in 10 patients with high body mass index (BMI, kg/m2) and high waist circumference. We used ELISA methods for hormonal analyses. During the study-period of two months patients did not change anything in their lifestyle. In the study group, the levels of Rs, Lp and Adn changed significantly compared to their baseline levels (averages, ng/mL) - 6.93 ± 0.137, 18.40 ±1.021 and 7.98 ± 0.077 vs. 5.06 ± 0.011, 15.23 ± 0.906 and 10.45 ± 0.103 at the end of the second month, respectively. Compared with the control group of 6 people, matched for BMI, not receiving aronia melanocarpa juice, these values were markedly different. Patients taking aronia melanokarpa juice report improvement in various conditions that have caused them discomfort before the research started: pain in the muscles and joints faded away and were replaced by a new feeling of strength, headache attacks disappeared, improvement in memory and sleep were reported, regular defecation, no signs of gastric discomfort, better vision, a quicker auditory reaction, motivation for having sex, good mood were also reported. Obese patients with insulin resistance have decreased serum adiponectin and increased serum resistin and leptin. The levels of these three hormones changed positively after chronic intake of aronia juice. We recommend a daily intake of aronia juice for the prevention of health.
Thermal Changes in the Hard Dental Tissue at Diode Laser Root Canal Treatment
Authors: Uzunov Ts. , Grozdanova R. , Popova E. , Uzunov T.
Published: May 2015

The laser coagulation at the apical part of the root canal after vital extirpation is a proper method of preventing complications such as pain, bleeding, remaining vital pulp. The aim of the present survey is to register the thermal changes that occur on the tooth surfaces during laser treatment of the root canal after vital extirpation. An in vitro study of 30 extracted teeth has been conducted. The teeth have been prepared with ProTaper nickel-titanium machine tools and wiped dry. During the course of laser treatment of root canals with a diode laser DenLase temperatures, changes of the surface of the hard dental tissues have been recorded with infrared camera FLIR T330. The captured thermal images have been processed with software product Flir Reporter Pro 9. In conclusion, temperature changes in hard dental tissues at diode laser treatment of the root canal are biocompatible.
Model–Based Techniques for Virtual Sensing of Longitudinal Flight Parameters
Authors: Seren Cédric , Ezerzere Pierre , Hardier Georges
Published: May 2015

Introduction of fly-by-wire and increasing levels of automation significantly improve the safety of civil aircraft, and result in advanced capabilities for detecting, protecting and optimizing A/C guidance and control. However, this higher complexity requires the availability of some key flight parameters to be extended. Hence, the monitoring and consolidation of those signals is a significant issue, usually achieved via many functionally redundant sensors to extend the way those parameters are measured. This solution penalizes the overall system performance in terms of weight, maintenance, and so on. Other alternatives rely on signal processing or model-based techniques that make a global use of all or part of the sensor data available, supplemented by a model-based simulation of the flight mechanics. That processing achieves real-time estimates of the critical parameters and yields dissimilar signals. Filtered and consolidated information is delivered in unfaulty conditions by estimating an extended state vector, including wind components, and can replace failed signals in degraded conditions. Accordingly, this paper describes two model-based approaches allowing the longitudinal flight parameters of a civil A/C to be estimated on-line. Results are displayed to evaluate the performances in different simulated and real flight conditions, including realistic external disturbances and modeling errors.
A Safe Supervisory Flight Control Scheme in the Presence of Constraints and Anomalies
Authors: Franzè Giuseppe , Furfaro Angelo , Mattei Massimiliano , Scordamaglia Valerio
Published: May 2015

In this paper the hybrid supervisory control architecture developed by Famularo et al. (2011) for constrained control systems is adopted with the aim to improve safety in aircraft operations when critical events like command saturations or unpredicted anomalies occur. The capabilities of a low-computational demanding predictive scheme for the supervision of non-linear dynamical systems subject to sudden switchings amongst operating conditions and time-varying constraints are exploited in the flight control systems framework. The strategy is based on command governor ideas and is tailored to jointly take into account time-varying set-points/constraints. Unpredictable anomalies in the nominal plant behaviour, whose models fall in the category of time-varying constraints, can also be tolerated by the control scheme. In order to show the effectiveness of the proposed approach, simulations both on a high altitude performance demonstrator unmanned aircraft with redundant control surfaces and the P92 general aviation aircraft are discussed.
Detection and Identification of Loss of Efficiency Faults of Flight Actuators
Authors: Ossmann Daniel , Varga Andreas
Published: May 2015

We propose linear parameter-varying (LPV) model-based approaches to the synthesis of robust fault detection and diagnosis (FDD) systems for loss of efficiency (LOE) faults of flight actuators. The proposed methods are applicable to several types of parametric (or multiplicative) LOE faults such as actuator disconnection, surface damage, actuator power loss or stall loads. For the detection of these parametric faults, advanced LPV-model detection techniques are proposed, which implicitly provide fault identification information. Fast detection of intermittent stall loads (seen as nuisances, rather than faults) is important in enhancing the performance of various fault detection schemes dealing with large input signals. For this case, a dedicated fast identification algorithm is devised. The developed FDD systems are tested on a nonlinear actuator model which is implemented in a full nonlinear aircraft simulation model. This enables the validation of the FDD system’s detection and identification characteristics under realistic conditions.
A Hamiltonian Approach to Fault Isolation in a Planar Vertical Take–Off and Landing Aircraft Model
Authors: Rodriguez-Alfaro Luis H. , Alcorta-Garcia Efrain , Lara David , Romero Gerardo
Published: May 2015

The problem of fault detection and isolation in a class of nonlinear systems having a Hamiltonian representation is considered. In particular, a model of a planar vertical take-off and landing aircraft with sensor and actuator faults is studied. A Hamiltonian representation is derived from an Euler-Lagrange representation of the system model considered. In this form, nonlinear decoupling is applied in order to obtain subsystems with (as much as possible) specific fault sensitivity properties. The resulting decoupled subsystem is represented as a Hamiltonian system and observer-based residual generators are designed. The results are presented through simulations to show the effectiveness of the proposed approach.
A Fault Tolerant Direct Control Allocation Scheme with Integral Sliding Modes
Authors: Hamayun Mirza Tariq , Edwards Christopher , Alwi Halim , Bajodah Abdulrahman
Published: May 2015

In this paper, integral sliding mode control ideas are combined with direct control allocation in order to create a fault tolerant control scheme. Traditional integral sliding mode control can directly handle actuator faults; however, it cannot do so with actuator failures. Therefore, a mechanism needs to be adopted to distribute the control effort amongst the remaining functioning actuators in cases of faults or failures, so that an acceptable level of closed-loop performance can be retained. This paper considers the possibility of introducing fault tolerance even if fault or failure information is not provided to the control strategy. To demonstrate the efficacy of the proposed scheme, a high fidelity nonlinear model of a large civil aircraft is considered in the simulations in the presence of wind, gusts and sensor noise.
Clinical evaluation of periodontal health during orthodontic treatment with fixed appliances
Authors: Hănțoiu T. , Monea Adriana , Lazăr Luminița , Hănțoiu Liana
Published: May 2015

Objectives: Fixed orthodontic appliances make daily application of oral hygiene standard procedures more difficult and in time may lead to accumulation of oral biofilms and development of gingivitis and hyperplasia. The aim of the study is to evaluate the periodontal health expressed by clinical indices in patients under orthodontic treatment with fixed appliances, according to different oral hygene maintenance programs. Material and method: We performed a randomized prospective study on 60 patients with fixed orthodontic appliances (17-25 years of age) devided in three study groups. The clnical indices recorded were: modified gingival index, plaque index and sulcular bleeding index. Statistical analysis or the results were carried out using Student t test. Results: The patients were randomly divided into three groups: group A-patients were instructed to use electric brush, water flosser and interdental brush, group B- electric brush, interdental brush and fluoride and group C- manual brushing and fluoride. Statistical comparison of the values of the indexes with the Student t test for independent samples showed statistically significant differences in all three groups of patients studied between initial and final values of all recorded clinical parameters. Conclusions: Fixed orthodontics do not induce periodontal disease if basic principles of oral hygiene are followed in compliant patients, which are correctly instructed to deal with real challenge, represented by complete elimination of debris and bacterial accumulation.
Limitations when use chloramphenicol-bcyclodextrins complexes in ophtalmic solutions buffered with boric acid/borax system
Authors: Todoran Nicoleta , Ciurba Adriana , Rédai Emőke , Ion V. , Lazăr Luminița , Sipos Emese
Published: May 2015

Chloramphenicol eye drops are commonly prescribed in concentrations of 0.5-1% in the treatment of infectious conjunctivitis. In terms of ophthalmic solution preparation, the major disadvantage of chloramphenicol consists in its low solubility in water. The solubility is increased by substances that form chloramphenicol-complexes, for example: boric acid/borax or cyclodextrins. Objective: Experimental studies aimed to evaluate the potential advantages of enhancing the solubility and stability of chloramphenicol (API) by molecular encapsulation in b-cyclodextrin (CD), in formulation of ophthalmic solutions buffered with boric acid/borax system. Methods and Results: We prepared four APIb- CD complexes, using two methods (kneading and co-precipitation) and two molar ratio of API/b-cyclodextrin (1:1 and 1:2). The formation of complexes was proved by differential scanning calorimetry (DSC) and the in vitro dissolution tests. Using these compounds, we prepared eight ophthalmic solutions, formulated in two variants of chloramphenicol concentrations (0.4% and 0.5%). Each solution was analyzed, by the official methods, at preparation and periodically during three months of storing in different temperature conditions (4°C, 20°C and 30°C). Conclusions: Inclusion of chloramphenicol in b-cyclodextrin only partially solves the difficulties due to the low solubility of chloramphenicol. The protection of chloramphenicol molecules is not completely ensured when the ophthalmic solutions are buffered with the boric acid/borax system.