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31.
Phytochemical and bioactivity studies on Hedera helix L. (Ivy) flower pollen and ivy bee pollen
Nisa Beril Şen, Etil Guzelmeric, Irena Vovk, Vesna Glavnik, Hasan Kırmızıbekmez, Erdem Yesilada, 2023, izvirni znanstveni članek

Objavljeno v DiRROS: 11.07.2023; Ogledov: 295; Prenosov: 127
.pdf Celotno besedilo (3,33 MB)
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32.
Valorized deinking paper residue as fill material for geotechnical structures
Karmen Fifer Bizjak, Barbara Likar, Ana Mladenovič, Vesna Zalar Serjun, 2021, izvirni znanstveni članek

Povzetek: This study introduces a novel geotechnical composite material comprising two types of fill material sourced from the paper industry-deinking paper sludge ash (DPSA) and deinking paper sludge (DPS). Five composites with different DPSA and DPS contents were investigated. Two composites were selected for further analyses. The technology and procedure for composite installation were implemented in field tests. The composites with 80% and 70% DPSA exhibited the elasticity required to withstand minor landslide slip deformations, in addition to achieving sufficiently high values of uniaxial compressive strength. The composites had a low maximum dry density value, which led to fewer settlements in the entire support structure. The enhanced shear characteristics can enable the construction of a thinner retaining wall. The delay between preparation and installation of the composites was further investigated. The field tests confirmed that the composites with 80% and 70% DPSA can be installed on the construction site 4 h and even 24 h after mixing. In 2018, a retaining wall structure with 70% DPSA and 30% DPS was successfully implemented near a railway line using conventional technology as followed-up research to the herein presented study. Results have been derived from work performed in the scope of the H2020 Paperchain project in which novel circular economy models centered on the valorization of the waste streams generated by the pulp and paper industry as secondary raw material for several resource-intensive sectors, including the construction sector, have been developed. Environmental benefits are savings in natural raw materials, reduction of landfill disposal as well as CO2 emission reduction.
Ključne besede: deinking paper sludge ash, deinking paper sludge, secondary resources, fill material, geotechnical structure, landslide, open access
Objavljeno v DiRROS: 04.07.2023; Ogledov: 235; Prenosov: 181
.pdf Celotno besedilo (1,63 MB)
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33.
Environmental impacts and immobilization mechanisms of cadmium, lead and zinc in geotechnical composites made from contaminated soil and paper-ash
Marija Đurić, Primož Oprčkal, Vesna Zalar Serjun, Alenka Mauko Pranjić, Janez Ščančar, Radmila Milačič, Ana Mladenovič, 2021, izvirni znanstveni članek

Povzetek: Paper-ash is used for remediation of heavily contaminated soils with metals, but remediation efficiency after longer periods has not been reported. To gain insights into the mechanisms of immobilization of cadmium (Cd), lead (Pb), and znic (Zn), a study was performed in the laboratory experiment in uncontaminated, artificially contaminated, and remediated soils, and these soils treated with sulfate, to mimic conditions in contaminated soil from zinc smelter site. Remediation was performed by mixing contaminated soil with paper-ash to immobilize Cd, Pb, and Zn in the geotechnical composite. Partitioning of Cd, Pb, and Zn was studied over one year in seven-time intervals applying the sequential extraction procedure and complementary X-ray diffraction analyses. This methodological approach enabled us to follow the redistribution of Cd, Pb, and Zn over time, thus, to studying immobilization mechanisms and assessing the remediation efficiency and stability of newly formed mineral phases. Cd, Pb, and Zn were effectively immobilized by precipitation of insoluble hydroxides after the addition of paper-ash and by the carbonization process in insoluble carbonate minerals. After remediation, Cd, Pb, and Zn concentrations in the water-soluble fraction were well below the limiting values for inertness: Cd by 100 times, Pb by 125 times, and Zn by 10 times. Sulfate treatment did not influence the remediation efficiency. Experimental data confirmed the high remediation efficiency and stability of insoluble Cd, Pb, and Zn mineral phases in geotechnical composites.
Ključne besede: cadmium, lead, zinc, contaminated soil, paper ash, immobilization mechanisms
Objavljeno v DiRROS: 04.07.2023; Ogledov: 302; Prenosov: 196
.pdf Celotno besedilo (2,95 MB)
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34.
Environmental acceptability of geotechnical composites from recycled materials : comparative study of laboratory and field investigations
Marija Đurić, Vesna Zalar Serjun, Ana Mladenovič, Alenka Mauko Pranjić, Radmila Milačič, Janez Ščančar, Janko Urbanc, Nina Mali, Alenka Sešek Pavlin, Janez Turk, Primož Oprčkal, 2023, izvirni znanstveni članek

Povzetek: The environmental properties of three geotechnical composites made by recycling wastes were investigated on a laboratory scale and in the field with the use of lysimeters designated for the revitalization of degraded mining sites. Composites were prepared by combining the mine waste with paper-mill sludge and foundry sand (Composite 1), with digestate from municipal waste and paper ash (Composite 2), and with coal ash, foundry slag and waste incineration bottom ash (Composite 3). The results of laboratory leaching tests proved that Composites 1 and 3 are envi- ronmentally acceptable, according to the legislative limits, as the potentially hazardous substances were immobilized, while in Composite 2, the legislative limits were exceeded. In the field lysimeters, the lowest rate of leaching was determined for optimally compacted Composites 1 and 3, while for Composite 2 the leaching of Cu was high. This study proved that optimally installed Composites 1 and 3 are environmentally acceptable for use in construction as an alternative to virgin materials, for the revitalization of degraded mining sites or, along with Composite 2, for closure operations with landfills. In this way, locally available waste streams are valorised and channelized into a beneficial and sustainable recycling practice.
Ključne besede: waste, recycling, lysimeter, potentiali hazardous substances, immobilization, revitalisation, environmental, open access
Objavljeno v DiRROS: 29.05.2023; Ogledov: 289; Prenosov: 224
.pdf Celotno besedilo (3,42 MB)
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35.
Breme kožnega melanoma v Sloveniji in kazalniki kakovosti obravnave : poročilo nacionalnega kliničnega registra kožnega melanoma za obdobje 2017-2021
Vesna Zadnik, Katarina Lokar, 2023, objavljeni znanstveni prispevek na konferenci

Povzetek: Na Onkološkem inštitutu Ljubljana smo leta 2018 v okviru Registra raka Republike Slovenije vzpostavili prvi nacionalni onkološki klinični register – klinični register kožnega melanoma. Poleg kazalnikov bremena raka (incidence, prevalence in preživetja), ki jih že 70 let spremljamo v okviru nacionalnega Registra raka, lahko sedaj na populacijski ravni merimo tudi kazalnike kakovosti obravnave bolnikov z melanomov. Kožni melanom sodi med rake, pri katerih incidenca v zadnjih desetletjih najbolj strmo narašča. Število novo zbolelih že presega mejo 600 oseb letno s čimer zavzema kožni melanom 6. mesto med vsemi novo odkritimi raki. Tako po incidenci, kot po umrljivosti je Slovenija zelo visoko na lestvici evropskih držav; po preživetju pa se uvrščamo nad evropsko povprečje. Kazalniki kakovosti obravnave in skladnosti obravnav s smernicami so na voljo za zbolele od leta 2017 naprej. Stroka si je že postavila ciljne vrednosti za vsakega od definiranih kazalnikov - kar nekaj postavljenih ciljev ostaja še pred nami
Ključne besede: rak kože, melanom, register raka
Objavljeno v DiRROS: 16.05.2023; Ogledov: 285; Prenosov: 120
.pdf Celotno besedilo (325,76 KB)
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36.
Leaching and geochemical modelling of an electric arc furnace (EAF) and ladle slag heap
Mojca Loncnar, Ana Mladenovič, Vesna Zalar Serjun, Marija Zupančič, Hans A. van der Sloot, 2022, izvirni znanstveni članek

Povzetek: Old metallurgical dumps across Europe represent a loss of valuable land and a potential threat to the environment, especially to groundwater (GW). The Javornik electric arc furnace (EAF) and ladle slag heap, situated in Slovenia, was investigated in this study. The environmental impact of the slag heap was evaluated by combining leaching characterization tests of landfill samples and geochemical modelling. It was shown that throughout the landfill the same minerals and sorptive phases control the leaching of elements of potential concern, despite variations in chemical composi- tion. Although carbonation of the disposed steel slags occurred (molar ratio CO3/(Ca+Mg) = 0.53) relative to fresh slag, it had a limited effect on the leaching behaviour of elements of potential concern. The leaching from the slag heaps had also a limited effect on the quality of the GW. A site-specific case, however, was that leachates from the slag heap were strongly diluted, since a rapid flow of GW fed from the nearby Sava River was observed in the landfill area. The sampling and testing approach applied provides a basis for assessing the long-term impact of release and is a good starting point for evaluating future management options, including beneficial uses for this type of slag.
Ključne besede: EAF slag, field verification, geochemical modelling, ladle slag, leaching, release prediction, steel slag heap
Objavljeno v DiRROS: 28.04.2023; Ogledov: 328; Prenosov: 173
.pdf Celotno besedilo (4,37 MB)
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37.
Organizacijska zdravstvena pismenost na Onkološkem inštitutu Ljubljana : primer komunikacijske kampanje o paliativni oskrbi
Amela Duratović Konjević, Vesna Škrbec, 2022, objavljeni strokovni prispevek na konferenci

Ključne besede: komunikacija, stiki z javnostjo, zdravstvo
Objavljeno v DiRROS: 15.02.2023; Ogledov: 326; Prenosov: 90
.pdf Celotno besedilo (823,25 KB)

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Epidemiologija raka prostate
Vesna Zadnik, 2023, objavljeni znanstveni prispevek na konferenci

Povzetek: Ocenjeno je, da je leta 2020 za rakom prostate na svetu zbolelo več kot 1,4 milijona moških, kar je 14 % vseh zbolelih za rakom. Breme raka prostate, predvsem incidenca, je odvisno od intenzivnosti rabe testa za določanje za prostato specifičnega antigena (PSA) pri zdravih moških v populaciji. Breme raka prostate v Sloveniji je v primerjavi z Evropo nekoliko nad povprečjem. V obdobju 2015−2019 je v Sloveniji povprečno letno za rakom prostate zbolelo 1.676 moških (162,8/100.000), umrlo pa 434 (42,1/100.000). Ob koncu leta 2019 je med nami živelo 15.922 bolnikov, ki jim je bila kdaj v življenju postavljena diagnoza raka prostate. Petletno čisto preživetje slovenskih bolnikov, zbolelih v letih 2012−2016, je bilo 93-%. Kljub številnim epidemiološkim raziskavam zaenkrat še vedno premalo vemo o etiologiji raka prostate. Letos smo v Evropski uniji revidirali dosedanja strokovna dognanja o učinkovitosti uporabe PSA v organiziranem presejanju za raka prostate. Novi dokazi bodo predstavljali osnovo za pripravo priporočil za uvedbo populacijskega presejanja v državah članicah. Do takrat pa odločitev o tem, ali uporabiti ali ne presejalni test PSA pri zdravih, asimptomatskih moških, ostaja odgovornost zdravnika, skupaj z vsemi prednostmi in možnimi zapleti seznanjenega moškega.
Ključne besede: rak prostate, epidemiologija, register raka
Objavljeno v DiRROS: 02.02.2023; Ogledov: 314; Prenosov: 89
.pdf Celotno besedilo (126,76 KB)

40.
Odlično zadovoljstvo žensk s programom DORA : rezultati anonimne ankete
Mateja Kurir-Borovčić, Katja Jarm, Miloš Vrhovec, Veronika Kutnar, Lucija Kolar, Katarina Torkar, Vesna Škrbec, Cveto Šval, Kristijana Hertl, 2022, objavljeni povzetek strokovnega prispevka na konferenci

Ključne besede: onkologija, rak dojke, kemoterapija
Objavljeno v DiRROS: 27.01.2023; Ogledov: 333; Prenosov: 93
.pdf Celotno besedilo (47,70 KB)

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