4 research outputs found
Thermopower and thermoelectric power factor of Zk parafermion quantum dots
No full textAbstractUsing the conformal field theory approach to the thermoelectric characteristics of fractional quantum Hall states, previously developed in Georgiev (2015) [10], we show that the thermoelectric power factor of Coulomb-blockaded islands, realized by point contacts in Fabry–Pérot interferometers in the Zk parafermion Hall states, could give reliable signatures for distinguishing the topological orders of different quantum Hall states having identical electric properties. For example, while the conductance peak patterns in the Coulomb blockade regime for such states are practically indistinguishable for vn≪vc even at finite temperature, where vn and vc are the Fermi velocities of the neutral and charged modes respectively, the power factors PT of the corresponding states are much more sensitive to the neutral modes. In particular, the smaller r=vn/vc the bigger the asymmetries in the power factor which combined with the thermal broadening of the conductance peaks due to the neutral modes' multiplicities could give us the ultimate tool to figure out which of the competing quantum Hall universality classes are indeed realized in the experiments. We give a complete description of the power factor profiles in the Z3 and Z4 parafermion states with arbitrary number of quasiparticles localized in the bulk which could be useful for comparison with the experiments
PRIMENA KURSEVA MEŠOVITOG UČENJA ZA OBRAZOVANJE NA SAVREMENOM UNIVERZITETU. INFORMACIONI SISTEM ‘E-UNIVERZITET’ NA UNIVERZITETU U VELIKOM TRNOVU, BUGARSKA
No full textIn the past few years, blended learning has become more and more rapidly spread in the field of education worldwide. The idea of blended learning seems attractive because it allows for the preservation of the traditional forms of education resulting from accumulated pedagogical experience for centuries and we could altogether use the various educational functions of new technologies. The methodology developed by the author introduces a key subsystem from the integrated management information system of Veliko Tarnovo University, namely the ‘E-University’ subsystem. On the base of own experience and the analyzed research, there is an opportunity to use different media, individualize the learning process, opportunity to use different styles of learning, organizing joint learning activities. The successful application of this approach together with the organization of education and the quality of the virtual environment require the presence of the human factor which is able to combine different types of learning environments in order to provoke students to perform various types of activities and develop their potential abilities and talents in the future.U poslednjih nekoliko godina, mešovito učenje se sve brže širi na polju obrazovanja širom sveta. Ideja kombinovanog učenja deluje privlačno jer omogućava očuvanje tradicionalnih oblika obrazovanja koji proističu iz vekovima akumuliranog pedagoškog iskustva kroz korišćenje različitih obrazovnih funkcija novih tehnologija. U radu je predstavljena metodologija razvijena od strane autora koja predstavlja ključni podsistem integrisanog informacionog sistema upravljanja Univerziteta u Velikom Trnovu, pod nazivom “E – Univerzitet” podsistem. Na osnovu analize dosadašnjih istraživanja i sopstvenog iskustva, predstavljene su mogućnosti korišćenja različitih medija u cilju individualizacije procesa učenja, korišćenja različitih stilova učenja, organizovanja aktivnosti grupnog učenja. Uspešna primena ovog pristupa, zajedno sa organizacijom obrazovanja i kvalitetnim virtuelnim okruženjem zahteva prisustvo ljudskog faktora koji je sposoban da kombinuje različite tipove okruženja za učenje kako bi provocirao studente da obavljaju različite tipove aktivnosti i razvijaju potencijalne sposobnosti i talente u budućnosti
TRANSHUMANISM AND SENTIMENTALISM IN LOIS LOWRY`S THE GIVER
No full textThe article explores an aspect of American writer Lois Lowry`s award-winning adolescent novel The Giver (1993) that has not been sufficiently examined in criticism, namely, the author`s stance toward the general enthusiasm among scientists and politicians about the possibilities opened by the latest advances in science and technology to perfect human societies and improve the individual subject`s experience of life. Presenting the failure of a utopian project based on all-pervading social control and, on the other hand, biotechnology, the novel offers a cautionary tale against the dangers stemming from instrumental, soulless biopolitics. Lowry believes that public order and epidemiological control promoted by technocrats can give us physical safety, but can take a toll on our emotional health and intellectual development. As an alternative to the technocratic utopia Lois Lowry`s novel proposes social spaces organized on the basis of sentiment as the most natural political arrangement that guarantees human happiness and the fulfilment of human potential
Tracheal (accessory) bronchus – a case report
Get PDFIntroduction: Tracheal bronchus (also known as accessory bronchus) is a congenital anatomical variant in which an additional bronchus originates directly from the supracarinal trachea. This type of anomaly usually arises about 2cm above the carina but can occur anywhere along the trachea, from the cricoid cartilage to the tracheal bifurcation.Case Presentation: We present a case from our practice of a 62-year-old male, who arrived at our Multidisciplinary Emergency Department with complaints of sudden onset of dyspnea and high blood pressure with values of 225/125mmHg. The patient was admitted to the Clinic of Pulmonology and Phthisiology. He also reported having mild haemoptysis for the last 2 to 3 months. It was decided that a contrast-enhanced computed tomography scan with contrast enhansement should be performed, for the evaluation of possible pulmonary thromboembolism (PTE). As a result of the imaging study an accessory right bronchus was identified as an incidental finding.Results: After excluding PTE as a possible diagnosis, the following changes were identified on the CT scan: accessory right bronchus located about 20mm from the carina; multilobulated retrotracheal gas structure (differential diagnosis - atypical accessory pulmonary segment; extraluminal mediastinal gas collections; tracheal diverticulosis); a perihilar tumour formation in the left lung, causing stenosis of the left main bronchus and its lobar branches; a combination of subsolid micronodules and ground glass opacities affecting most of the left lower lobe.Conclusion: Tracheal bronchus is a congenital anomaly of the bronchial tree, often remaining entirely asymptomatic. Follow-up of such a finding should be done by an interdisciplinary team
