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91.
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94.
Hyperrings with n -ary composition hyperoperation
Morteza Norouzi, Irina Cristea, 2017, izvirni znanstveni članek

Opis: Based on the concepts of composition ring and composition hyperring, in this note we introduce the notion of $n$-ary composition hyperring and study the connections with composition hyperrings. Moreover we show that special strong multiendomorphisms of hyperrings can determine the $n$-ary composition structure of a such hyperring and also a subclass of $n$-ary composition hyperrings. Finally, the three isomorphism theorems are studied in the framework of $n$-ary composition hyperrings.
Ključne besede: n-ary hypergroup, (m, n)-hyperring, composition hyperring, n-ary composition hyperideal
Objavljeno: 10.07.2017; Ogledov: 172; Prenosov: 0
.pdf Polno besedilo (355,83 KB)

95.
Isolation and selection wild yeasts for winemaking
Natalia Mikhaylina, 2017, diplomsko delo

Opis: The aim of this study was to explore the diversity of fermentative yeast species in a non-vineyard and vineyard environment, and exploit their oenological potential. For this purpose we collected plant and soil material in the vineyard (located in Črniče in Vipava Valley) planted with Vitis vinifera L. and in the forest (forest in Vipava Old Castle), and by using a selective medium with high ethanol and sugar content we managed to obtain 35 isolates. By sequencing the D1/D2 domain of the 26S rDNA we identified nine different yeast species. The oenological potential of identified yeasts was further investigated by employing a series of tests, such as growth at low pH values, tolerance to ethanol and sulfur, and H2S production ability. Based on the results of these tests we selected four different yeast species for the microvinification of Vitis vinifera L. cv. ‘Pinot Noir’ grape juice. A commercial strain Saccharomyces cerevisiae Lalvin D47 was also included as a control in the fermentation experiment. Fermentation monitoring was done by measuring daily weight loss and microbiological analysis in the middle of fermentation. For the final wines, sugars were determined and sensorial evaluation performed. Among four tested yeasts, S. paradoxus IVV 32 and Torulaspora delbrueckii IVV 36 appeared to be the most promising for winemaking, but further studies should be carried out.
Ključne besede: wine, Vitis vinifera L. cv. ‘Pinot Noir’, biodiversity, yeasts, fermentation
Objavljeno: 10.07.2017; Ogledov: 263; Prenosov: 33
.pdf Polno besedilo (2,57 MB)

96.
PREVERJANJE KAKOVOSTI STORITEV V GOSTINSKEM LOKALU
Vanja Pauletić Jug, 2017, diplomsko delo

Opis: V današnjem času je veliko gostinskih lokalov pri nas, konkurence v gostinstvu pa je ogromno. Gostinski lokali ponujajo vse več, stranke postajajo zahtevnejše, saj postaja hitrost življenja večja in zahtevnejša. Poslanstvo gostinskega lokala je, da v prijetnem in modernem okolju ponuja oddih od vsakdanjika, da se gost sprosti ob dobri glasbi, kvalitetni postrežbi, poseže po dnevnem časopisu in prebrska po elektronski pošti ali prebere novice na svetovnem spletu. Z diplomskim delom želimo organizaciji, ki se bo v prihodnosti ukvarjala z gostinsko dejavnostjo, predstaviti nekatere nove smernice, ki vplivajo na počutje gosta, ter pojasniti, kako pomembna je kakovost storitve, ki si jo gost želi v gostinskem lokalu. Kakovost storitve je pokazatelj zadovoljne stranke, ki se vrača. Če je bilo zadoščeno vsem njegovim potrebam, lahko pričakujemo velik odziv novih strank. Tako se zadovoljstvo uporabnikov storitev oceni po zasedenosti gostinskega lokala. Na svetovnem spletu smo z anketnim vprašalnikom zastavili anketirancem nekaj ključnih vprašanj, ki so se nanašala na kakovost oziroma storitve, ki si jih stranke želijo uporabljati v dobrem gostinskem lokalu. Z analizo anketnega vprašalnika smo pridobili vizijo, mnenja in tržno razumevanje, kako se lahko lokal prilagodi mestnemu okolju ter kaj stranke pričakujejo v izbranem gostinskem lokalu.
Ključne besede: gostinski lokal, gost, kakovost, storitev, stranka, komunikacija
Objavljeno: 10.07.2017; Ogledov: 305; Prenosov: 0
.pdf Polno besedilo (838,16 KB)

97.
Analiza psihosocialnih tveganj na delovnem mestu v izbrani organizaciji
Maja Tišma, 2017, diplomsko delo

Opis: Delodajalec je dolžan poskrbeti, da je vsak, ki je redno ali začasno zaposlen v njegovem podjetju, že pred začetkom nastopa na delovnem mestu poučen o varnosti na delovnem mestu in o varstvu pred požarom. Dejavniki, kot so nezadostno znanje, različne spretnosti in navade ter nezadostna usposobljenost delavcev za varno delo, so ključnega pomena za nastanek poškodb pri delu. S tem so seznanjeni tudi v podjetju Mahle Letrika, d. d.; enem izmed največjih proizvodnih podjetij v Sloveniji z več kot 50-letno tradicijo. Z novo skupino za promocijo zdravja poskušajo koncept »zdravega delovnega mesta« v upanju, da ta postane navada in ne dolžnost, čim bolj približati zaposlenim. V nalogi se bomo osredotočili predvsem na področje stresa na delovnem mestu. Psihosocialna tveganja in stres, povezan z delom, so med najtežjimi izzivi na področju varnosti in zdravja pri delu, ki jih je mogoče s pravim pristopom preprečiti in uspešno obvladovati ne glede na velikost ali vrsto podjetja. S pomočjo rezultatov naše ankete bodo oblikovani preventivni in kurativni ukrepi za zmanjševanje psihosocialnih tveganj ter izboljšanje ocene tveganja na delovnem mestu.
Ključne besede: Mahle Letrika, d. d., varnost in zdravje na delovnem mestu, varstvo pred požarom, promocija zdravja, stres na delovnem mestu, psihosocialna tveganja
Objavljeno: 10.07.2017; Ogledov: 184; Prenosov: 2
.pdf Polno besedilo (1,41 MB)

98.
Extraction of Organochlorine Pesticides from Plastic Pellets and Plastic Type Analysis
Špela Koren, Manca Kovač Viršek, Petra Makorič, Maryline Pflieger, 2017, pregledni znanstveni članek

Opis: Plastic resin pellets, categorized as microplastics (≤5 mm in diameter), are small granules that can be unintentionally released to the environment during manufacturing and transport. Because of their environmental persistence, they are widely distributed in the oceans and on beaches all over the world. They can act as a vector of potentially toxic organic compounds (e.g., polychlorinated biphenyls) and might consequently negatively affect marine organisms. Their possible impacts along the food chain are not yet well understood. In order to assess the hazards associated with the occurrence of plastic pellets in the marine environment, it is necessary to develop methodologies that allow for rapid determination of associated organic contaminant levels. The present protocol describes the different steps required for sampling resin pellets, analyzing adsorbed organochlorine pesticides (OCPs) and identifying the plastic type. The focus is on the extraction of OCPs from plastic pellets by means of a pressurized fluid extractor (PFE) and on the polymer chemical analysis applying Fourier Transform-InfraRed (FT-IR) spectroscopy. The developed methodology focuses on 11 OCPs and related compounds, including dichlorodiphenyltrichloroethane (DDT) and its two main metabolites, lindane and two production isomers, as well as the two biologically active isomers of technical endosulfan. This protocol constitutes a simple and rapid alternative to existing methodology for evaluating the concentration of organic contaminants adsorbed on plastic pieces.
Ključne besede: Environmental Sciences, Issue 125, Microplastics, resin pellets, pesticides, persistent organic pollutants, organochlorine pesticides, dichlorodiphenyltrichloroethane, endosulfan, hexachlorocyclohexane, lindane, Fourier transform infrared spectroscopy, pressurized fluid extractor
Objavljeno: 10.07.2017; Ogledov: 227; Prenosov: 0

99.
Razmerje med tujino in domovino na zemljevidu Maruše Krese
Zala Pavšič, 2017

Opis: Prispevek predstavlja razmišljanja o odnosu med tujino in domovino slovenske pisateljice in novinarke Maruše Krese (1947–2013), ki je med osamosvajanjem Slovenije prebivala v Berlinu. Poleg analize njene poezije, ki kaže na potrebo po preseganju meja nacionalnega, identitete in sorodnih konceptov, članek zajema tudi do sedaj še neobravnavana razmišljanja Maruše Krese o osamosvojitvi Slovenije, ki jih je avtorica skupaj s tremi somišljenicami podala v korespondenci Briefe von Frauen über Krieg und Nationalismus. Prispevek vključuje tudi kritične odzive na omenjeno delo ter umešča Marušo Krese v izseljensko književnost.
Ključne besede: KLJUČNE BESEDE: Maruša Krese, Briefe von Frauen über Krieg und Nationalismus, identiteta, Slovo od Slovenije, domovina
Objavljeno: 07.07.2017; Ogledov: 202; Prenosov: 0
.pdf Polno besedilo (1,26 MB)
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100.
KARREN OF THE KAMENJAK HUM (DALMATIAN KARST, CROATIA); FROM THE INITIAL DISSECTION OF FLAT SURFACES
Ela Šegina, 2015, izvirni znanstveni članek

Opis: Rock relief is an important trace of the formation and development of karst phenomena on various carbonate rock. The existing current state is usually in a rich and diverse stage of homogeneous or heterogeneous development. The various forms of rock relief represent different ways and conditions a karst phenomenon formed and the developmental levels under the same conditions and with the same factors. Research into the connections between different developmental models is therefore necessary. Over time, not only rock relief but also rock forms begin to merge with one another. We are looking at the initial period of the development of a thick rock strata due to rain. On gently sloping rock strata, which tend to disintegrate at the edges, especially when they are inclined downwards, characteristic rock relief forms on the flat surfaces of larger planes, initially due to rainwater and sheets of creeping water and later through three-dimensional dissection and primarily the direct action of rainwater.
Ključne besede: karren, lithology, complexometry, rock relief, Lake Vrana, Croatia
Objavljeno: 07.07.2017; Ogledov: 189; Prenosov: 0
.pdf Polno besedilo (5,19 MB)

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