Integrierte Seminararbeiten als Ergebnis des Projektunterrichts

Polazeći od teorije višestrukih inteligencija Howarda Gardnera te projektne nastave Johna Deweya, u radu se izlažu učinci podučavanja učenika tehnikom pisanja znanstvenog rada. Format u kome se učenici pismeno izražavaju jest seminarski rad, koncipiran prema modelu integrirane nastave u srednjoj muzičkoj školi. U nju su uključeni predmeti Teorija muzike, Istorija muzike s upoznavanjem muzičke literature, Nacionalna istorija muzike te Srpski jezik i književnost. Mogućnosti koje pruža takav pristup višestruke su i odnose se na: stjecanje učeničkih vještina u domeni akademskog pisanja prije odlaska na fakultet, što svakako standardi vezani s pisanjem eseja, stručnog teksta i rezimea drugih tekstova zahtijevaju; unapređivanje školske klime, etosa i među učenicima i među profesorima uključenima u proces. Broj predmeta koji se mogu uključiti u određenu temu nije ograničen i tiče se podjednako užestručnih, glazbenih i općeobrazovnih. Posebno je značajno nadilaženje neusklađenosti programa različitih predmeta u kurikulu pri izradi seminarskih radova, putem anticipiranja teme (za gradivo koje će se iz pojedinih predmeta raditi kasnije) ili utvrđivanja gradiva. Format blok-nastave u obliku okruglog stola za učenike različitih razreda, u tako koncipiranom podučavanju, omogućava učenicima razmjenu iskustava, vršnjačku edukaciju i jačanje kritičarskih sposobnosti učenika. Takva školska praksa proistekla je i iz dugogodišnjeg rada tima za integriranu nastavu Muzičke škole „Dr. Miloje Milojević“ iz Kragujevca i iz potrebe da koordinatori nastave svoja znanja stečena na doktorskim studijama muzikologije i srpskog jezika i književnosti te samostalnim znanstvenim radom prilagode i prenesu učenicimaStarting with Howard Gardner’s theory of multiple intelligences and John Dewey’s project teaching, the paper exposes the effects of teaching students by means of the technique of writing scientific papers. The format of students’ expressing themselves in a written form is a seminar paper, outlined according to the integrated teaching model in music school. This comparative and aesthetic approach of writing students’ papers encompasses the subjects of Music theory, History of music, National history of music and the Serbian language and literature. The possibilities provided by such an approach are multiple and relate to: acquiring students’ skills in the domain of academic writing before entering a university, and which is certainly required by standards related to writing essays, vocational texts and summaries of other texts; enhancing school climate, ethos, not only among students, but also among teachers included in the process. The number of subjects whose content can be interconnected in a specific topic is not limited, and it equally relates to narrower vocational, music and general education subjects. The outcomes of this method of work are focused on the most possible functional meeting demands, which each subject individually brings along. What is particularly important is the overcoming curriculum incompatibilities of different subjects when writing seminar papers, by means of anticipating the subject or by revising material. The block teaching format in the form of round table for students of various grades, in such conceived teaching, enables students’ exchange of experiences, peer education and strengthening of students’ critical abilities. Such school practice comes, not only from long-standing work of Integrated teaching team of music school “Dr Miloje Milojević” in Kragujevac, but also from the need of coordinators of the teaching process to adapt and transfer knowledge acquired during doctoral studies of musicology to students.Von der Theorie multipler Intelligenzen von Howard Gardner und des Projektunterrichts von John Dewey ausgehend, werden in der Arbeit Auswirkungen der Belehrung der Schüler durch die Technik des Verfassens wissenschaftlicher Arbeit präsentiert. Das Format der schriftlichen Äußerung der Schüler ist die Seminararbeit, die nach dem Modell des integrierten Unterrichts in der Musikschule konzipiert ist. Solcher Unterricht umfasst die folgenden Fächer: Musiktheorie, Musikgeschichte und Kennenlernen der Musikliteratur, nationale Musikgeschichte und serbische Sprache und Literatur. Dieser Ansatz bietet vielfältige Möglichkeiten und zwar erwerben die Schüler hierbei Fertigkeiten im Bereich des Verfassens akademischer Texte bereits vor dem Studium, nämlich Fertigkeiten, die beim Verfassen von Essays, Zusammenfassungen und Fachtexten zum Standard gehören. Ferner trägt dieser Ansatz zur Verbesserung des Schulklimas unter Schülern und unter Lehrern bei. Die Anzahl der Fächer, die in ein bestimmtes Thema einbezogen werden können, ist nicht begrenzt und betrifft gleichermaßen eng fachorientierte und allgemeinausbildende Fächer, sowie Fächer im Bereich Musik. Besonders bedeutend ist es dabei die mangelnde Übereinstimmung der Programme unterschiedlicher Fächer im Lehrplan zu überbrücken und beim Verfassen der Seminararbeiten bestimmte Themen zu antizipieren (wenn die Lerninhalte in bestimmten Fächern erst später behandelt werden) oder den Lernstoff zu wiederholen und zu festigen. Eine derartig konzipierte Belehrung ermöglicht den Schülern verschiedener Klassen in den Doppelstunden und im Format der runden Tische Erfahrungen auszutauschen, führt zum kollegialen Lernen und zur Stärkung der kritischen Fähigkeiten der Schüler. Die hier beschriebene Schulpraxis entstammt der langjährigen Arbeit des Teams für integrierten Unterricht der „Dr. Miloje Milojević“ Musikschule aus Kragujevac und ist Folge des Bedarfs von Koordinatoren, ihre an Doktorstudien der Musikologie und der serbischen Sprache und Literatur erworbenen Kenntnisse durch eigenständige wissenschaftliche Arbeit anzupassen und den Schülern zu vermitteln

Structural Characterization of Nanocellulose/Fe3O4 Hybrid Nanomaterials

The rise of innovation in the electrical industry is driven by the controlled design of new materials. The hybrid materials based on magnetite/nanocellulose are highly interesting due to their various applications in medicine, ecology, catalysis and electronics. In this study, the structure and morphology of nanocellulose/magnetite hybrid nanomaterials were investigated. The effect of nanocellulose loading on the crystal structure of synthesized composites was investigated by XRD and FTIR methods. The presented study reveals that the interaction between the cellulose and magnetic nanoparticles depends on the nanocellulose content. Further, a transition from cellulose II to cellulose I allomorph is observed. SEM and EDS are employed to determine the variation in morphology with changes in component concentrations. By the calculation of magnetic interactions between adjacent Fe3+ and Fe2+ ions within composites, it is determined that ferromagnetic coupling predominates

Biofilm Adhesion and Micromorphology Analysis after Professional Oral Hygiene Procedures on CAD/CAM Milled and Veneered Zirconia Restorations: In Vitro Study

Objective: The purpose of this study was to evaluate the surface texture and biofilm adhesion of veneered or CAD/CAM milled zirconia (partially stabilized with yttrium) after professional oral hygiene procedures. The samples (4 × 4 mm, thickness 2 mm; n  =  72) were separated from zirconia blanks (3Y-TZP-LA). One group was veenered with ceramics, and the other group of samples was CAD/CAM milled. Each group had two subgroups: polished and glazed. The samples were subjected to simulated strokes of professional brushing using abrasive paste and ultrasonic scaling. The parameters of surface micromorphology and receptivity to biofilm were calculated before and after simulating the given methods of the professional maintenance of oral hygiene. Scanning electron microscopy (SEM) was used to evaluate zirconia surface properties. Microbial (bacterial/fungal) species (Staphylococcus aureus, Streptococcus sanguinis and Candida albicans) were used and cultured on respective sterilized zirconia surfaces. Colony-forming unit (CFU) counts were used to quantify the amount of biofilm formation on zirconia samples surfaces. Results: The SEM analysis showed the greatest change in surface microtopography after the use of ultrasonic scaling on glazed zirconia samples. Less formation of colonies on the surfaces of CAD/CAM milled zirconia restorations was observed. Conclusion: Routine methods of oral hygiene professional maintenance can damage the surfaces of glazed zirconia restorations

Hybrid Nanoscale Materials for Convergent Technologies

The convergence of nano-, bio-, and information technologies is based on the understanding of complex hierarchical structures and systems, as well as on the material unity at the nanoscale and on technology integration from that scale. A growing interest in these technologies is a result of their potential to provide solutions to numerous societal challenges, such as advanced healthcare, environmental remediation, sustainable development, and adoption of cyber-physical systems based on the Internet of Things and the Internet of Systems. Taking into account that hybrid nanomaterials possess extraordinary physical and chemical properties derived from their size in the nanoscale, the aim of this work is to present the connection between processing parameters and multifunctional properties of nano scale hybrid materials, focusing on the study of ceramic-polymer structures before they can be nano-engineered into functional devices. The unique functionality of these nanostructures has enabled their applications in numerous devices such as: micro and nano-electro-mechanical systems (MEMS/NEMS), sensors, microactuators, surface acoustic wave devices, polymer electrolyte membrane fuel cells, switches, thermistors, resonators and filters, electrooptic devices, etc. In this study special attention has been paid to their applications in the fields of electronics, biotechnology, environmental protection and remediation

Hybrid Nanoscale Materials for Convergent Technologies

The convergence of nano-, bio-, and information technologies is based on the understanding of complex hierarchical structures and systems, as well as on the material unity at the nanoscale and on technology integration from that scale. A growing interest in these technologies is a result of their potential to provide solutions to numerous societal challenges, such as advanced healthcare, environmental remediation, sustainable development, and adoption of cyber-physical systems based on the Internet of Things and the Internet of Systems. Taking into account that hybrid nanomaterials possess extraordinary physical and chemical properties derived from their size in the nanoscale, the aim of this work is to present the connection between processing parameters and multifunctional properties of nano scale hybrid materials, focusing on the study of ceramic-polymer structures before they can be nano-engineered into functional devices. The unique functionality of these nanostructures has enabled their applications in numerous devices such as: micro and nano-electro-mechanical systems (MEMS/NEMS), sensors, microactuators, surface acoustic wave devices, polymer electrolyte membrane fuel cells, switches, thermistors, resonators and filters, electrooptic devices, etc. In this study special attention has been paid to their applications in the fields of electronics, biotechnology, environmental protection and remediation

Hybrid Nanoscale Materials for Convergent Technologies

The convergence of nano-, bio-, and information technologies is based on the understanding of complex hierarchical structures and systems, as well as on the material unity at the nanoscale and on technology integration from that scale. A growing interest in these technologies is a result of their potential to provide solutions to numerous societal challenges, such as advanced healthcare, environmental remediation, sustainable development, and adoption of cyber-physical systems based on the Internet of Things and the Internet of Systems. Taking into account that hybrid nanomaterials possess extraordinary physical and chemical properties derived from their size in the nanoscale, the aim of this work is to present the connection between processing parameters and multifunctional properties of nano scale hybrid materials, focusing on the study of ceramic-polymer structures before they can be nano-engineered into functional devices. The unique functionality of these nanostructures has enabled their applications in numerous devices such as: micro and nano-electro-mechanical systems (MEMS/NEMS), sensors, microactuators, surface acoustic wave devices, polymer electrolyte membrane fuel cells, switches, thermistors, resonators and filters, electrooptic devices, etc. In this study special attention has been paid to their applications in the fields of electronics, biotechnology, environmental protection and remediation

Travel burden and clinical presentation of retinoblastoma: analysis of 1024 patients from 43 African countries and 518 patients from 40 European countries

BACKGROUND: The travel distance from home to a treatment centre, which may impact the stage at diagnosis, has not been investigated for retinoblastoma, the most common childhood eye cancer. We aimed to investigate the travel burden and its impact on clinical presentation in a large sample of patients with retinoblastoma from Africa and Europe. METHODS: A cross-sectional analysis including 518 treatment-naïve patients with retinoblastoma residing in 40 European countries and 1024 treatment-naïve patients with retinoblastoma residing in 43 African countries. RESULTS: Capture rate was 42.2% of expected patients from Africa and 108.8% from Europe. African patients were older (95% CI -12.4 to -5.4, p<0.001), had fewer cases of familial retinoblastoma (95% CI 2.0 to 5.3, p<0.001) and presented with more advanced disease (95% CI 6.0 to 9.8, p<0.001); 43.4% and 15.4% of Africans had extraocular retinoblastoma and distant metastasis at the time of diagnosis, respectively, compared to 2.9% and 1.0% of the Europeans. To reach a retinoblastoma centre, European patients travelled 421.8 km compared to Africans who travelled 185.7 km (p<0.001). On regression analysis, lower-national income level, African residence and older age (p<0.001), but not travel distance (p=0.19), were risk factors for advanced disease. CONCLUSIONS: Fewer than half the expected number of patients with retinoblastoma presented to African referral centres in 2017, suggesting poor awareness or other barriers to access. Despite the relatively shorter distance travelled by African patients, they presented with later-stage disease. Health education about retinoblastoma is needed for carers and health workers in Africa in order to increase capture rate and promote early referral

Palimpsest of persecution: overcoming anti-semitism in Olga Tokarchuk's "Books of Jacob"

U fokusu rada nalazi se ispitivanje socio-političkog statusa Jevreja u romanu Olge Tokarčuk "Knjige Jakovlјeve". Jakovovlјeva sekta, na tragu šabatcvijskog učenja, u sebi hibridizuje judejsku i hrišćansku tradiciju ali i paganski, poliamorijski pristup seksualnom. Marginalizacija Jakovlјevih sledbenika posmatra se dvostruko: kroz versko otpadništvo od tradicionalnog judaizma ali i kroz nikad do kraja prihvaćenu uniju sa hrišćanima. Teorijski pristup problemu neodvojiv je od jungovskog arhetipa majke oličenog u figuri Jente, „one-koja-sve-vidi”, fukoovskog „poretka diskursa”, preko koga se daje tumačenje skrajnjavanja jakovlјevaca kroz teatralizaciju suđenja, dekonstrukcije binarnih opozicija muško/žensko, heteroseksualno/homoseksualno što istraživanje nužno vodi u domene ginokritike odnosno queer-istraživanja. Olga Tokarčuk, svedočeći o marginama u ovom obimnom, palimpsestnom romanu, sprovodi svojevrsnu strategiju prevladavanja antisemitizma.The focus of the paper is on examining the socio-political status of Jews in Olga Tokarchuk's novel Books of Jacob. Jacob's sect, following the Sabbath teaching, hybridizes the Jewish and Christian traditions, but also the pagan, polyamorous approach to sexuality. The marginalization of Jacob's followers is viewed in two ways: through religious apostasy from traditional Judaism, but also through a union with Christians that have never been fully accepted. The theoretical approach to the problem is inseparable from the Jungian archetype of the mother embodied in the figure of Jenta, the “one-who-sees-everything”, and Foucault's “Order of discourse”, which provides the interpretation of the extinction of Jacobites through the theatricalization of trials and the deconstruction of binary oppositions, which necessarily leads this research into the domains of gynocriticism or queer research. By formally placing a man in the center of her novel, after whom it is named, the author places a woman, Jenta, in the outer margins of the work. She represents the essential support for the Jacobites - both emotional, for life, and mythical, after death. Olga Tokarchuk, testifying about the margins in this extensive, palimpsestic novel, pursues a kind of strategy of overcoming anti-Semitism.Izdavanje ovog zbornika podržalo je Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije

The antivasoconstrictor effect of P1075 on the isolated human saphenous vein

To investigate whether the antivasoconstrictor effect of P1075, a potassium channel openers, could be partly due to modulation of neurotransmitter release from adrenergic nerve endings we analysed the presynaptic and postsynaptic effects of P1075 on the isolated human saphenous vein (HSV). The HSV rings were contracted by electrical field stimulation (EFS) or by exogenous noradrenaline (10 μM; NA). The repetitive transmural EFS was carried out at 20 Hz with square wave pulses of 0.3 ms duration and supramaximal voltage. The contraction of the HSV in response to transmural EFS recorded in our experiments are neurogenic in nature, as this effect was abolished by tetrodotoxin (1 μM). We have also found that phentolamine (1 μM) inhibited almost completly (90 ″ 2%) the HSV contractions to EFS suggesting that this response was mediated by NA release from perivascular sympathetic nerve endings activating postjuncional α adrenoceptors. P1075 (0.01-10 μM) induced a concentration-dependent inhibition of both neurogenic contractions, and contractions evoked by exogenous NA of the HSV with pEC 50 values of of 6.48 ″ 0.05 and 6.36″ 0.08. The difference between the pEC 50 values (r) was not statistically significant (P &gt; 0.05). These results suggest that the antivasoconstrictor effect of P1075 on the HSV might be postsynaptic, and associated with opening of the smooth muscle potassium channels

Effect of irregular interproximal dental restorations on periodontal status

Introduction. Research of effects that irregular interproximal dental restoration have on supporting structures of the teeth and examination of evolution and course of changes in tissue structure is quite a poorly studied topic. Aim of this study is to examine and assess clinical and radiological changes in periodontal tissue caused by irregular interproximal dental restoration in particular group of patients with different age and sex. Methods. Irregularities which were assesed in this study are divided into two groups: a) gap (cracks) occurring between dental restorations and the gingival walls in Class II cavities, b) prominence of dental fillings out of the teeth anatomical sphere, resulting with the positive step in gum third of tooth in Class II cavities. The study was based on whether in the particular forms of irregularities of the dental restorations are differences in the degree of change in the periodontal tissue, depending on the material from which the restoration is made, and the materials used were composite fillings and amalgams. Results of this study show that irregular dental fillings significantly affect the inflammatory response in periodontal tissue. Irregularities in the form of unfilled space cause major changes in periodontal tissue. Composite fillings cause a higher degree of inflammation in relation to amalgam fillings. Conclusion. Improper tooth fillings cause periodontal tissue damages