The Effects of a Collaborative Problem-based Learning Experience on Students’ Motivation in Engineering Capstone Courses

We identified and examined how the instructional elements of problem-based learning capstone engineering courses affected students’ motivation to engage in the courses. We employed a two-phase, sequential, explanatory, mixed methods research design. For the quantitative phase, 47 undergraduate students at a large public university completed a questionnaire that measured the components of the MUSIC Model of Academic Motivation (Jones, 2009): empowerment, usefulness, success, situational interest, individual interest, academic caring, and personal caring. For the qualitative phase that followed, 10 students answered questions related to the MUSIC components. We identified several instructional elements that led to motivating opportunities that affected students’ motivation to engage in the courses. We discuss how these motivating opportunities can foster or hinder students’ engagement and provide implications for instruction

Organizacija tehnološkog procesa remonta složenih tehničkih sistema u tehničkom remontnom zavodu u Čačku

Složeni tehnički sistemi (STS) od ostalih tehničkih sistema (TS) razlikuju se po konstrukciji i nameni, koja može biti: zaštita ljudi, materijalnih bogatstava i teritorije. Ako želimo da STS budu ispravni i imaju zadovoljavajući nivo pouzdanosti i gotovosti,  sistem remonta mora biti u stanju da podrži zahteve koji proističu iz njihove specifičnosti. Sistem njihovog remonta mora biti programiran, a upravljanje njime zasnovano na konceptu QMS (Quality management system). Organizacija remonta STS za potrebe sistema odbrane Republike Srbije, u Tehničkom remontnom zavodu u Čačku (TRZ), primer je organizacije u koju je implementiran  procesni model sistema upravljanja kvalitetom (QMS). Ovaj članak opisuje proces remonta STS u TRZ sa njegovim procesnim sistemom upravljanja kvalitetom (QMS), koji je preduslov za efikasan i efektivan proces remonta. Proces remonta prikazan je na primeru remonta guseničnog borbenog vozila. </p

Short term bioassay and bioassay chemistry of materials related to synthetic fossil fuels

An abstract was prepared for one paper. Abstracts of the five additional papers appeared previously in ERA

Rapidly progressive Bronchiolitis Obliterans Organising Pneumonia presenting with pneumothorax, persistent air leak, acute respiratory distress syndrome and multi-organ dysfunction: a case report

<p>Abstract</p> <p>Introduction</p> <p>Bronchiolitis Obliterans Organising Pneumonia (BOOP) may often present initially as a recurrent spontaneous pneumothorax and then develop multi-system complications.</p> <p>Case presentation</p> <p>A 17-year-old boy presented with a pneumothorax, which developed into rapidly progressive Bronchiolitis Obliterans Organising Pneumonia (BOOP). He developed multi-organ dysfunction (including adult respiratory distress syndrome, oliguric renal failure, acute coronary syndrome, cardiac failure and a right atrial thrombus) which necessitated prolonged intensive care. Diagnosis was confirmed on open lung biopsy and he responded well to treatment with corticosteroids.</p> <p>Conclusion</p> <p>BOOP is exquisitely sensitive to oral corticosteroids but if the diagnosis is not considered in such patients and appropriate treatment instituted early, BOOP may often lead to prolonged hospital admission with considerable morbidity.</p

Large Coherence Area Thin-Film Photonic Stop-Band Lasers

We demonstrate that the shift of the stop band position with increasing oblique angle in periodic structures results in a wide transverse exponential field distribution corresponding to strong angular confinement of the radiation. The beam expansion follows an effective diffusive equation depending only upon the spectral mode width. In the presence of gain, the beam cross section is limited only by the size of the gain area. As an example of an active periodic photonic medium, we calculate and measure laser emission from a dye-doped cholesteric liquid crystal film

Kikuchi Fujimoto disease associated with cryptogenic organizing pneumonia: case report and literature review

<p>Abstract</p> <p>Background</p> <p>The association of Kikuchi Fujimoto disease (KFD) with cryptogenic organizing pneumonia (COP) is extremely rare. We report a case of simultaneous diagnosis of KFD and COP.</p> <p>Case Presentation</p> <p>A 33-year-old male presented with a 1-month cough illness and fever lasting for 5 days. The chest radiograph revealed double lower lobe infiltrate, which was unresponsive to antibiotics. A cervical lymph node was first found in the development of this disease. Bronchoscopy, bronchoalveolar lavage and lung biopsy established the diagnosis of COP, while a lymph node biopsy was consistent with KFD. The patient improved on steroids.</p> <p>Conclusions</p> <p>KFD and COP are possible part of a disease continuum, rather than separate entities.</p