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1.
Creative thinking and decision-making processes in EFL creative writing
Katja Težak, 2015, izvirni znanstveni članek

Opis: Creativity has been discussed, observed and researched for hundreds of years in the fields of psychology and philosophy - from the ancient notion of the inspired genius, all the way to modern psychologists trying to define creativity and prove its effects. Creativity has recently become a buzzword in EFL teaching practices. We try to stimulate creative thinking in the classroom, but possibly forget to observe the processes within it. The article discusses definitions of creativity and presents a qualitative study on the decision-making processes within EFL creative writing and its connections to students' language learning. The qualitative study was conducted with two 3rd-year bachelor English students who were asked to plan and write a short story in English while doing a think-aloud protocol. The data were transcribed and coded in order to observe emerging categories in the students' reasoning for plot and language use decisions.
Ključne besede: EFL, creative writing, creative thinking, decision making, language learning
Objavljeno: 16.05.2017; Ogledov: 18; Prenosov: 3
.pdf Polno besedilo (214,73 KB)

2.
Ekološka pridelava oljk v Sloveniji
Dane Podmenik, Martina Bavec, Barbara Lampič, 2013, izvirni znanstveni članek

Opis: V prispevku predstavljamo razvoj in značilnosti ekološke pridelave oljk v Sloveniji. V letu 2012 je bilo zabeleženih 184,5 ha ekoloških oljčnikov, kar predstavlja 10 % vseh oljčnih nasadov. Glede na trende lahko v naslednjih letih pričakujemo, da bi se obseg ekoloških oljčnikov lahko povzpel na 350 ha. Pomembna je tudi ugotovitev, da pridelovalci namenjajo premalo pozornosti trajnostnim kmetijskim praksam, kar sproža kritičen premislek o izpolnjevanju temeljnih standardov ekološkega kmetijstva.
Ključne besede: agrarna geografija, ekološko kmetijstvo, oljkarstvo, Slovenija, Slovenska Istra
Objavljeno: 12.05.2017; Ogledov: 10; Prenosov: 0
.pdf Polno besedilo (5,20 MB)

3.
The development of sugar beet production and processing simulation model
Črtomir Rozman, Andrej Škraba, Karmen Pažek, Miroljub Kljajić, 2014, izvirni znanstveni članek

Opis: Background: The sugar beet is the main field crop used for sugar production in the temperate climatic zone. The abolishment of the quota system will open new investment opportunities in countries that were forced to abandon sugar industry as the result of the reform in 2006. Present paper describes the modeling of sugar beet production and its processing into sugar for purpose of decision support. Methods: A system dynamics methodology was chosen to model impacts of regional sugar factory investment. We present two basic concepts of system dynamics models at causal loop diagram level. The first holistic model deals with regional planning of new product development and the second one deals with factory model. Results: The holistic model presented main feedback loops and dynamics of main elements in the case of regional investment into sugar industry. The factory model considered the specifics of the beet processing which is a) limited period of beet processing and b) initial adjustment to the production capacity at the start of the production season Conclusions: The model seeks answers to strategic questions related to the whole sugar beet production and processing system and will be used for simulation of different scenarios for sugar production and their impact on economic and environmental parameters at an aggregate level.
Ključne besede: sugar beet, system dynamics, simulation, model
Objavljeno: 04.04.2017; Ogledov: 51; Prenosov: 1
.pdf Polno besedilo (368,75 KB)

4.
Sugar beet production
Črtomir Rozman, Miroljub Kljajić, Karmen Pažek, 2015, izvirni znanstveni članek

Opis: Background and Purpose: The sugar beet is the main field crop used for sugar production in the temperate climatic zone. Since investment in sugar beet industry are long term and ireversible the decision support and economic analysis are required in order to maximise investment returns. Methodology: A system dynamics methodology was chosen to model the impacts of regional sugar factory investments. We present the basic concepts of system dynamics (SD) models and their development in the case of sugar beet production and processing systems. Sugar beet economics are also analyzed using the static technological economic simulation model. Results: The simulation provides answers to strategic questions related to the total sugar beet production and processing system and will be used for the simulation of different scenarios for sugar production and their impact on economic and environmental parameters at an aggregate level. Furthermore, the feasibility analysis of sugar beet production revealed that at the current price and intensity levels (yields), we can expect profitable sugar beet production for both white sugar and ethanol. Conclusion: Preliminary results show that under expected production parameters the sugar beet processing and production would be economically feasible.
Ključne besede: sugar beet, modeling, system dynamics, economic feasibility
Objavljeno: 04.04.2017; Ogledov: 47; Prenosov: 1
.pdf Polno besedilo (533,79 KB)

5.
Multi-criteria assessment of vegetable production business alternatives
Silvo Pozderec, Martina Bavec, Črtomir Rozman, Jožef Vinčec, Karmen Pažek, 2015, izvirni znanstveni članek

Opis: Purpose: Organic and integrated production of vegetables are the two most common production systems in Slovenia. The study analyzed two production systems with different cultures as alternatives with purpose to find the most appropriate variants. Design/Methodology/Approach: The study based on the development and integration of developed specific technological- economic simulation models for the production of vegetables (salad, growing peppers, salad cucumbers, pickling cucumbers, round and cherry tomato) in greenhouse and multi-criteria decision analysis. The methodology of the study based on the DEX methodology and the analytical hierarchy process (AHP) of organic (ECO) and integrated production (IP) in greenhouse. Results: The evaluation results show that both cultivation methods of commercially attractive vegetables in greenhouse are variable. In the case of integrated production, the assessment of multi-criteria decision analysis EC and DEXi showed that salad (Donertie F1) proved to be the best possible alternative. In the case of organic production, the multi-criteria analysis assessment of pickling cucumbers (Harmony F1) is the best possible business alternative. Conclusion: For the further production planning process by decision maker is the ranking with Expert Choice (EC) more useful and precise, while the DEX evaluations are more descriptive.
Ključne besede: simulation models, multi-criteria analysis, vegetable, greenhouses
Objavljeno: 04.04.2017; Ogledov: 26; Prenosov: 1
.pdf Polno besedilo (709,15 KB)

6.
On Vizing's conjecture
Boštjan Brešar, 2001, izvirni znanstveni članek

Opis: A dominating set ▫$D$▫ gor a graph ▫$G$▫ is a subset ▫$V(G)$▫ such that any vertex in ▫$V(G)-D$▫ has a neighbor in ▫$D$▫, and a domination number ▫$\gamma(G)$▫ is the size of a minimum dominating set for ▫$G$▫. For the Cartesian product ▫$G \Box H$▫ Vizing's conjecture states that ▫$\gamma(G \Box H) \ge \gamma(G)\gamma(H)$▫ for every pair of graphs ▫$G,H$▫. In this paper we introduce a new concept which extends the ordinary domination of graphs, and prove that the conjecture holds when ▫$\gamma(G) = \gamma(H) = 3$▫.
Ključne besede: mathematics, graph theory, graph, Cartesian product, domination number
Objavljeno: 31.03.2017; Ogledov: 59; Prenosov: 10
.pdf Polno besedilo (126,98 KB)

7.
The effects of jasmonic acid and ethylenediamine-di-o-hydroxyphenyl-acetic acid on floral induction and induction of turions in Spirodela polyrhiza (L.) Schleiden
Virgilija Marinc Hrženjak, Janja Kristl, Božidar Krajnčič, 2008, izvirni znanstveni članek

Opis: We investigated the effects of jasmonic acid (JA) and ethylenediamine-di-o-hydroxyphenyl-acetic acid (EDDHA) on floral induction and induction of turions in the photoperiodically neutral clone Djelekovec of the species Spirodela polyrhiza in axenical cultures. JA (0.475-47.5 nmol.L-1) promoted floral induction under long-day (LD) and short day (SD) conditions, while it had no effect on turion induction. The inhibitory effect of JA on flowering and turion induction was observed at a JA concentration of 237.5 nmol.L-1 and 475 nmpl.L-1. Under the same conditions, flowering and induction of turions were enhanced by EDDHA (20.5 nmol..L-1(. The combination od EDDHA and JA had an additive effect on promotion of floral induction, which was promoted significantly in experiments with LD preculture. The results obtained by quantitative determination of endogenous JA levels in Spirodela polyrhiza at two growth stages support our previous findings that JA may regulate floral induction. The levels of endogenous JA decreased from 226±12 ng·g–1 fresh weight during the vegetative stage in LD to 38.1±3.5 ng·g–1 in the flowering plants. In SD the levels of endogenous JA decreased from 62±9ng·g–1 fresh weight during vegetative stage to 29.2±3.1 ng·g–1 in the flowering plants.
Ključne besede: Spirodela polyrhiza (L.) Schleiden, chelating agent EDDHA, flowering, induction of turions, jasmonic acid
Objavljeno: 28.03.2017; Ogledov: 36; Prenosov: 0
.pdf Polno besedilo (142,62 KB)

8.
Encim telomeraza - tarča za prihodnja zdravila?
Tomaž Langerholc, 2012, pregledni znanstveni članek

Opis: Problem pomnoževanja koncev evkariontskih kromosomov (telomer) so uspešno rešili z odkritjem encima telomeraze konec 80. let prejšnjega stoletja, za odkritje so leta 2009 podelili tudi Nobelovo nagrado za medicino in fiziologijo. Izražanje telomeraze pri rakavih boleznih in človeške sanje o večni mladosti so močno pospešile razvoj farmakoloških telomeraznih inhibitorjev in aktivatorjev, vendar pa kljub 15-letnemu raziskovanju zdravila še niso dostopna na trgu. V članku smo glede na podatke v svetovnih medijih in literaturi naredili pregled farmakoloških učinkovin v zgodnjih fazah kliničnih preskušanj, ki specifično uravnavajo aktivnost telomeraze. Načrtovana protitumorska zdravila večinoma ne bodo namenjena samostojni uporabi, saj telomerazne inhibitorje klinično preskušajo v kombinaciji z obstoječimi kemoterapevtskimi sredstvi, protitelomerazna cepiva pa v kombinaciji z imunostimulansi. Poleg raka in staranja v prispevku navajamo ostala bolezenska stanja, ki so povezana s telomerazo/telomerami, hkrati pa opisujemo tudi tehnično-pravne probleme pri razvoju novih zdravil. Glede na dinamiko razvoja lahko prva protitelomerazna zdravila na trgu pričakujemo v naslednjih petih letih.
Ključne besede: telomeraza, imetelstat, cepivo, tumor, rak
Objavljeno: 28.03.2017; Ogledov: 37; Prenosov: 0
.pdf Polno besedilo (549,45 KB)

9.
Razvoj vinogradništva na Štajerskem od časa nadvojvode Janeza do danes
Borut Pulko, 2012, izvirni znanstveni članek

Ključne besede: vinogradništvo, zgodovina, Štajerska Slovenija
Objavljeno: 30.12.2015; Ogledov: 265; Prenosov: 16
URL Polno besedilo (0,00 KB)

10.
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