75,292 research outputs found
Perko, Amy (Video Interview)
No full textAmy Privette Perko is a 1987 graduate of Wake Forest University majoring in History. Perko was a member of the women's basketball team from 1984-1987 and was the school's all-time leader in points, rebounds, assists, and steals. While basketball was a large part of her college experience, Perko was also a member of the Fideles society. Since graduating Wake, Perko has worked for various athletic groups including the NCAA and most recently became the Executive Director of the Knight Commission on Intercollegiate Athletics. In 2000, Amy Privette Perko was inducted into the Wake Forest Sports Hall of Fame. In this interview, Perko speaks about her time at Wake Forest, recalling some of her favorite sports memories and how this shaped her career trajectory. One story centers on the ACC Tournament. She also talks about her involvement in Fideles and the experience of living on the society hall her junior and senior years
Uncertainty quantification in steady state simulations of a molten salt system using polynomial chaos expansion analysis
No full textUncertainty Quantification (UQ) of numerical simulations is highly relevant in the study and design of complex systems. Among the various approaches available, Polynomial Chaos Expansion (PCE) analysis has recently attracted great interest. It belongs to non-intrusive spectral projection methods and consists of constructing system responses as polynomial functions of the stochastic inputs. The limited number of required model evaluations and the possibility to apply it to codes without any modification make this technique extremely attractive. In this work, we propose the use of PCE to perform UQ of complex, multi-physics models for liquid fueled reactors, addressing key design aspects of neutronics and thermal fluid dynamics. Our PCE approach uses Smolyak sparse grids designed to estimate the PCE coefficients. To test its potential, the PCE method was applied to a 2D problem representative of the Molten Salt Fast Reactor physics. An in-house multi-physics tool constitutes the reference model. The studied responses are the maximum temperature and the effective multiplication factor. Results, validated by comparison with the reference model on 103 Monte-Carlo sampled points, prove the effectiveness of our PCE approach in assessing uncertainties of complex coupled models.RST/Reactor Physics and Nuclear Material
Morfologia i anatomia organów wegetatywnych perko z uwzględnieniem wartości paszowych [Morphology and anatomy of vegetative perko organs with reference to their fodder value]
No full textA new forage crop - perko is a hybrid of tetraploid winter tumiplike rapa (Brassica campestris L.) × tetraploid chinese cabbage (Brassica chinensis L.). Young perko plants grow slowly, at a later period their herbage yield rapidly increases, therefore they can be cut as fodder after 60 days of vegetation. The anatomical structure of perko plants shows features characteristic for Cruciferae, particularly those of the genus Brassica. The good feeding value of this plant is indicated by its anatomical structure: a large proportion of parenchymal tissues and low proportion of vascular tissues with only few lignified elements, the occurrence of colenchyma as supporting tissue and the absence of sclerenchyma. Therefore in the crude fibres the proportion of completely indigestibile parts is small since the tissues contain but scarce lignified andcutinised walls. It may be concluded there from that the content of structure-forming tissues in perko is favourable from the point of view of digestibility
Demografic changws und financial managment of care homes for the oldery in Slovenija
No full textDemografske spremembe so pripeljale do števične starejše populacije, ki bo v prihodnosti še naraščala, kar napovedujejo tudi projekcije prebivalstva. Vzrok za nastanek demografskih sprememb pa lahko poiščemo v rodnosti, umrljivosti in migracijah. Številčna starejša generacija bo imela vpliv tako natrg dela, gospodarsko rast in javne finance.
Posledično temu bo potrebno poskrbeti za starejše. Skrb za starejše poteka v Sloveniji v okviru bivanjskega okolja in v okviru institucionalnega varstva-domov za starejše. Država skuša z informiranjem in z zakonodajo zagotoviti pravice starejšim. Največji delež finančnih sredstev pri financiranju dolgotrajne oskrbe nameni prav domovom za starejše, kar dokažem tudi z izračuni.
Na podlagi študija primera skušam z bilanco stanja ter bilanco prihodkov in odhodkov analizirati poslovanje domov za starejše v ljubljanski in mariborski regiji tako javnih zavodov kot domov, ki delujejo na koncesijo. Z bilanco stanja na podlagi analize aktive, ugotovimo, da domovi na koncesijo nudijo stanovalcem boljše bivanjske pogoje kot javni zavodi. Analiza pasive pa kaže, da javni zavodi poslujejo z lastnimi viri, pri domovih na koncesijo pa je prisoten dolžniški kapital. Pri zagotavljanju finačnih sredstev so v nekoliko boljšem položaju javni zavodi. Največ sredstev ustvarijo domovi za starejše z delovanjem javne službe, največ odhodkov pa jim povzročajo stroški dela. Tako javni zavodi kot koncesionarji poslujejo gospodarno, kar kaže tudi koeficent gospodarnosti.brez povzetka v tujem jezik
Analysis of procurement processes in a digital e-commerce company
No full textV magistrskem delu obravnavamo povezavo dveh konceptov – digitalizacije in nabave. Nabava je ključen proces v organizacijah, ki se nanaša na pridobivanje materialov, storitev in opreme, potrebne za nemoteno delovanje podjetja. Sodobni poslovni svet je v zadnjih desetletjih doživel digitalno preobrazbo, ki je zajela tudi to področje. Uporaba informacijskih tehnologij in digitalnih orodij izboljšuje učinkovitost, lajša optimizacijo stroškov in povečuje preglednost nabavnih procesov, širše področje uporabe teh tehnologij pa se hitro prilagaja novim digitalnim trendom, kar omogoča še večjo učinkovitost in konkurenčnost nabavnih procesov.
Raziskavo smo zaključili z analizo nabave v izbranem podjetju X. Pregledali smo uporabo digitalnih orodij na področju komunikacije, upravljanja z zalogo in upravljanja s pošiljkami, nadaljevali smo z analizo obvladovanja nabavnih procesov s pomočjo strateškega planiranja, kjer smo obravnavali notranje in zunanje dejavnike, za konec pa smo identificirali tveganja v nabavnem postopku in podali ideje, kako jih omiliti.In the master\u27s thesis, we explore the connection between two concepts - digitalization and procurement. Procurement is a crucial process in organizations involving acquiring materials, services, and equipment necessary for smooth company operations. The modern business world has undergone a digital transformation in recent decades, encompassing this field as well. Information technologies and digital tools enhance efficiency, facilitate cost optimization, and increase transparency in procurement processes. The broader scope of these technologies quickly adapts to new digital trends, enabling even greater efficiency and competitiveness in procurement processes. We conducted the study by examining the literature on procurement and digitalisation and by analysing procurement practices in the selected company Xwe examined the use of digital tools in communication, inventory management, and shipment handling.
Furthermore, we conducted an analysis of procurement process management through strategic planning, addressing both internal and external factors. We could confirm that digital tools and strategic management positively affect procurement performance and risk management. Lastly, we identified risks in the procurement process and provided ideas for mitigating them
Testing students\u27 knowledge in distance education
No full textZ magistrskim delom smo predstavili preverjanje znanja pri izobraževanju na daljavo. V prvem delu smo s strokovno literaturo opredelili pojme, kot so vrednotenje, preverjaje in ocenjevanje znanja. Izpostavili smo vrste, načine ter oblike preverjanja znanja. Predstavili smo pomen preverjanja in ocenjevanja znanja v izobraževanju ter opredelili pojem izobraževanje na daljavo. Kasneje smo predstavili prednosti in slabosti elektronskega preverjanja znanja, opredelili pojem e-testov ter izpostavili pet taksonomij, ki jih lahko uporabimo pri preverjanju znanja. S statistično analizo podatkov, ki smo jih pridobili z anketnim vprašalnikom, smo v drugem delu magistrskega dela ugotovili, da je učni proces na Filozofski fakulteti v Mariboru bil v glavnem organiziran z online predavanji v živo ter z navodili za samostojno delo preko elektronske pošte, v spletni učilnici ipd.. Preverjanje znanja pri izobraževanju na daljavo je bilo v največji meri izvedeno z ocenjevanjem seminarskih nalog oziroma projektov ter z ustnim preverjanjem znanja preko videokonference. Anketiranci v večini menijo, da izvedba preverjanja znanja na daljavo ni vplivala na njihov učni uspeh, saj je ta ostal enak kot prej. Ugotovili smo, katere prednosti in slabosti zaznavajo študenti pri izobraževanju na daljavo. Splošno zadovoljstvo anketirancev z izvedbo izobraževanja na daljavo (med 1 in 5) je bilo v večji meri ocenjeno med 3 in 4. Prav tako v večini menili, da je bila izvedba učnega procesa v izobraževanju na daljavo v primerjavi s tradicionalnim izobraževanjem enaka, manjšemu deležu se je zdela izvedba slabša, manjšini pa celo boljša.With the master\u27s thesis we have presented the testing of student knowledge in distance education. In the first part of the master’s thesis, we have defined the terms like evaluation, testing and grading of knowledge with the use of scientific literature. We have highlighted the types, ways, and forms of testing knowledge. We have presented the role of testing and grading of knowledge and defined the term distance education. We went on to present the strengths and weaknesses of testing in electronic testing of knowledge, define the term e-examination and highlighted five taxonomies, which can be used in the testing of knowledge. In the second part of the master’s thesis, using the statistical analysis of information that we obtained using a questionnaire, we have concluded that the learning process at the Faculty of Arts in Maribor was largely organized with the use of live online lectures and the use of instructions for autonomous work via e-mail or e-classroom. The testing of knowledge in distance education was mostly done with the grading of seminar papers or projects, or with an oral examination via videoconference. The questionnaire respondents largely consider that the implementation of testing knowledge in distant education did not impact their educational achievements, as they remain unchanged. We have determined what students consider to be the strengths and weaknesses of distance education. The general satisfaction with distance education of the questionnaire respondents (between 1 and 5) was largely estimated to be between 3 and 4. They have also largely agreed that the execution of the learning process in distance education was equal to the traditional execution, a small portion perceived it as worse, and a minority thought it was better than before
Detection of pharmaceutically active compounds using yeast cells of the species Saccharomyces cerevisiae applied to an electrochemical cell (biosensor)
No full textZa detekcijo različnih farmacevtskih učinkovin smo uporabili impedančni biosenzor, ki je temeljil na predhodno razviti in optimizirani elektrokemijski celici z biološko komponento kvasovk vrste Saccharomyces cerevisiae. Za izdelavo elektrod smo uporabili nerjavno jeklo tipa 316, iz katerega smo sestavili trielektrodni elektrokemijski sistem v RCW side-by-side konfiguraciji. Pripravili smo različno koncentrirane raztopine acetaminofena, naproksena in izoniazida ter jih tekom meritev dodajali v zaprt elektrokemijski sistem. Stabilnost elektrokemijskega sistema smo ocenili z merjenjem potenciometrije pri odprtem tokokrogu (OCP), z elektrokemijsko impedančno spektroskopijo (EIS) pa smo spremljali odziv kvasovk vrste Saccharomyces cerevisiae na delovni elektrodi ob odsotnosti (0,9 % NaCl) in prisotnosti farmacevtskih učinkovin. Impedančni odziv sistema smo predstavili z Nyquistovimi in Bodejevimi diagrami, rezultatom pa izračunali standardni odklon, natančnost in točnost. Za vsako izmed farmacevtskih učinkovin smo oblikovali kalibracijsko krivuljo z R2 vrednostjo nad 0,95 ter izračunali mejo zaznavnosti (LOD). Za preučevanje vpliva farmacevtskih učinkovin na kvasovke vrste Saccharomyces cerevisiae smo izvedli eksperiment z rastno krivuljo, pri kateri smo spremljali spreminjanje optične gostote pri 600 nm (OD600) s časom po dodatku kontrole (0,9 % NaCl) in različno koncentriranih raztopin farmacevtskih učinkovin. Ugotovili smo, da je naš biosenzor zmožen detekcije učinka različnih koncentracij acetaminofena, naproksena in izoniazida. Dokazali smo, da z naraščanjem koncentracije naštetih farmacevtskih učinkovin pada impedanca elektrokemijskega sistema. S pripravo rastnih krivulj smo dokazali, da dodatek farmacevtskih učinkovin zavira rast celic kvasovk. Razvit biosenzor predstavlja cenovno ugodno in obetavno alternativo za hitrejšo in enostavnejšo detekcijo farmacevtskih učinkovin v vzorcih odpadne vode z uporabo živih celic kot biološke prepoznavne komponente.A previously developed and optimised electrochemical cell was used as an impedimetric biosensor, utilizing yeast Saccharomyces cerevisiae as a biological recognition element for the detection of different pharmaceutically active compounds. Electrodes were made from type 316 stainless steel and were implemented in a three-electrode system in the RCW side-by-side configuration. Acetaminophen, naproxen, and isoniazid solutions of varying concentrations were prepared and applied to the closed electrochemical system. The stability of the electrochemical system was evaluated by measuring the open circuit potential (OCP), and electrochemical impedance spectroscopy (EIS) was employed for tracking the response of the yeast Saccharomyces cerevisiae on the working electrode in the absence (0,9% NaCl) and in the presence of pharmaceutically active compounds. The impedimetric response of the system was presented using Nyquist and Bode diagrams, and the results\u27 standard deviation, precision, and accuracy were calculated. Moreover, we calculated the limit of detection (LOD) and devised a calibration curve for each of the studied compounds with R2 values above 0,95. To study the effect of pharmaceutically active compounds on the yeast Saccharomyces cerevisiae, an experiment using growth curves was conducted, which monitored the changes in optical density at 600 nm (OD600) over a specific time-period after the addition of the control (0,9% NaCl) and different concentrations of pharmaceutically active compounds. We found that the studied biosensor could detect different concentrations of acetaminophen, naproxen, and isoniazid, while confirming that the impedance of the electrochemical system decreases as the concentration of the compounds increases. Using growth curves, we confirmed that pharmaceutically active compounds lead to the growth inhibition of Saccharomyces cerevisiae yeast cells. The developed biosensor presents an interesting and affordable alternative for rapid and simplified detection of pharmaceutically active compounds in wastewater using living cells as the biological recognition element
The effect of organic and mineral fertilizers on the content of primary and secondary metabolites in bell pepper (Capsicum annuum ) fruits
No full textV poskusu, ki smo ga izvedli v letu 2015, smo proučevali vpliv organskih in mineralnih gnojil na pridelek plodov paprike ter vsebnosti primarnih in sekundarnih me-tabolitov. V rastlinjaku smo postavili lončni poskus s sorto paprike \u27Vedrana\u27, ki je bil zasnovan v bločni zasnovi, v treh ponovitvah. V poskus smo vključili 5 obravnavanj: gnojenje z organskim gnojilom Organik (ORG1) in Stallatico (ORG2), gnoje-nje z mineralnim gnojilom (MIN) ter gnojenje s kombinacijo organskega in mineral-nega gnojila (ORG1+WSFORG2+WSF). Na tehnološko zrelih plodovih smo izve-dli morfometrične meritve plodov, meritve vsebnosti sladkorjev, organskih kislin, vitamina C in fenolnih spojin. Največji pridelek smo dobili pri obravnavanju ORG1 (98 t/ha), najmanjši pa pri kontroli (32 t/ha). Gnojenje ni vplivalo na morfološke lastnosti plodov, imelo pa je značilen vpliv na barvne parametre plodov: a*, b*, C* in h*. Vsebnost skupnih sladkorjev je bila največja v plodovih rastlin, gnojenih z organskim gnojilom Organik (19,8 g/kg sveže mase (SM)), najmanjša pa pri gnojenju z gnojilom Stallatico + WSF (18,1 g/kg SM). Med sladkorji je bilo največ glukoze (51,6 %), sledi fruktoza (44,9 %), najmanj je bilo saharoze (3,5 %). Vsebnost skupnih kislin je bila največja pri mineralnem gnojenju (2,7 g/kg SM), najmanjša pa pri obravnavanju ORG2+WSF (2,2 g/kg SM). Gnojenje z različnimi gnojili ni imelo značilnega vpliva na vsebnost vitamina C niti na fenolno sestavo plodov. Največ vitamina C so vsebovali plodovi rastlin, gnojenih z mineralnim gnojilom (639,8 mg/kg SM), najmanj plodovi gnojeni z organskim gnojilom Stallatico (579,3 mg/kg SM). Od fenolnih spojin smo ugotovili prisotnost klorogenske kisline (0,8-2,6 mg/kg SM), apigenin glikozidov (1,8-4,2 mg/kg SM), luteolin glikozidov (10,9-21,5 mg/kg SM) in kvercetin glikozidov (3,3-6,2 mg/kg SM).In our experiment, which was conducted in 2015, the effect of organic and mineral fertilizer on yield of bell pepper and some primary and secondary metabolites in bell pepper fruits were evaluated. The pot experiment was placed in the greenhouse and was designed as block experiment with three repetitions. Five treatments with different fertilizer were included: fertilization with organic fertilizer Organik (ORG1), and Stallatico (ORG2), fertilization with mineral fertilizer (MIN) and the combination of both types of fertilizers: (ORG1+WSF, ORG2+WSF). Measurements of some carpometric parameters and chemical compostions were performed. The highest yield was found in ORG1 treatment (98 t/ha), the lowest yield gave plants from control treatment (32 t/ha). Fertilization did not affect carpometric characteristics, but did have significant impact on some colour parameters: a*, b*, C* and h*. The highest content of total sugars was detected in fruits from ORG1 treatment (19,8 g/kg fresh weight (FW)), and the lowest in fruits from Stallatico +WSF treatment (18,1 g/kg FW). Among the sugars, the highest part belongs to glucose (51.6 %), followed by fructose (44.9 %), and sucrose (3.5 %). The highest amount of total acids was found in fruits from MIN treatment (2,7 g/kg FW), and the lowest in fruits from ORG2+WSF (2,2 g/kg FW). Fertilization with organic and mineral fertilizers did not affect the vitamin C content, neither the phenolic composition. The highest vitamin C content had fruits from MIN treatment (639.8 mg/kg FW), the lowest had fruits from ORG2 treatment (579,3 mg/kg FW). In fruits some fenolic compound were detected: chlorogenic acid (0.8-2.6 mg/kg FW), apygenin glycosi-des (1.8-4.9 mg/kg FW), luteolin glycosides (10.9-21.5 mg/kg FW) and quercetin glycosides (3.3-6.2 mg/kg FW)
Do the teachers understand and recognize pupils with ADHD?
No full textMagistrsko delo z naslovom Ali učitelji razumejo in znajo prepoznati učenca z ADHD je sestavljeno iz dveh med seboj smiselno povezanih delov. V teoretičnem delu smo se osredotočili na to, kaj sploh je ADHD, na značilnosti otrok s tovrstno motnjo in na to, kako pogosto se pojavlja. Opisali smo tudi, kako se ADHD kaže v posameznih razvojnih obdobjih. Izpostavili smo ukrepe, ki obstajajo za pomoč tem otrokom, in predstavili različne načine dela v razredu z njimi ter se ob koncu osredotočili na sam pomen inkluzije. V empiričnem delu smo anketirali učitelje razrednega pouka. Z rezultati smo želeli ugotoviti, ali imajo učitelji osnovna znanja o pojavu ADHD, ali znajo v grobem prepoznati otroke s tovrstno motnjo in ali obvladajo metode in načine dela s temi učenci.
V magistrskem delu je bilo ugotovljeno, da učitelji znajo prepoznati otroke z ADHD. Prav tako znajo uporabljati metode in oblike dela, ki so primerne za njih.Master’s thesis titled Do the teachers understand and recognise pupils with ADHD? consists of two meaningfully linked parts. The theoretical part focuses on the meaning of ADHD, characteristics of children with these sorts of disabilities, and how frequent is the aforementioned. It is described how ADHD reflects in different developmental stages. The available measures to help these children were set. Different methods for work in the classroom were presentedmoreover, the meaning of inclusion was discussed.
In the empirical part, we interviewed class teachers. We tried to establish if teachers have basic knowledge about ADHD, could they recognise children with ADHD, and whether they master the methods of work with those students.
It was established in the Master’s thesis that teachers recognise children with ADHD. Moreover, teachers use appropriate methods for those students
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