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101 - 110 / 676
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101.
102.
Sproščanje dejavnikov imunogene celične smrti HMGB1 in ATP iz celičnih linij se povečuje s časom po obsevanju
Urša Kešar, Tanja Jesenko, Boštjan Markelc, Katja Uršič Valentinuzzi, Maja Čemažar, Primož Strojan, Gregor Serša, 2023, published scientific conference contribution abstract

Keywords: miši, obsevanje, radioterapija
Published in DiRROS: 19.06.2023; Views: 296; Downloads: 138
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103.
Obsevanje in genska terapija s kemokinoma CCL5 ali CCL17 na mišjih modelih karcinoma
Tim Božič, Simona Kranjc Brezar, Boštjan Markelc, Maja Čemažar, 2023, published scientific conference contribution abstract

Keywords: miši, obsevanje, gensko zdravljenje
Published in DiRROS: 19.06.2023; Views: 307; Downloads: 135
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104.
Fizikalni modeli imunoterapije in radioterapije
Damijan Valentinuzzi, Martina Vrankar, Katja Uršič Valentinuzzi, Mojca Unk, Olga Gordeeva, Alen Hadžić, Gregor Serša, Maja Čemažar, Robert Jeraj, 2023, published scientific conference contribution

Abstract: V prispevku bomo predstavili rezultate fizikalnih modelov imunoterapije, ki smo jih razvili v programski skupini Medicinska fizika na Fakulteti za matematiko in fiziko Univerze v Ljubljani. Glavni cilj raziskav je bila prepoznava bioloških značilnosti tumorjev, od katerih je odvisen odziv na zdravljenje s protitelesi receptorja programirane celične smrti l (angl. anti-programmed-death-1 (anti-PD-1)). Posebno pozornost smo namenili meritvam modelskih parametrov ter preverbi rezultatov modeliranja, kar je eden izmed predpogojev za uspešno translacijo modeliranja v rutinsko predklinično in klinično prakso. Predstavili bomo tudi načrte za prihodnost, tj. modeliranje kombinacije anti-PD-1 in radioterapije.
Keywords: imunoterapija, radioterapija, medicinska fizika, tumorji
Published in DiRROS: 16.06.2023; Views: 340; Downloads: 93
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105.
Novosti na področju radioterapije in radiobiologije: od raziskav do klinike : zbornik prispevkov in povzetkov
2023, proceedings of peer-reviewed scientific conference contributions (international and foreign conferences)

Published in DiRROS: 09.06.2023; Views: 483; Downloads: 226
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106.
Estimation of the corrosion properties for titanium dental alloys produced by SLM
Tadeja Kosec, Mirjam Bajt Leban, Maja Ovsenik, Matej Kurnik, Igor Kopač, 2022, original scientific article

Abstract: Titanium alloys are known for their excellent biocompatible properties. The development of additive-manufacturing technologies has increased the interest in the use of Ti-6Al-4V, produced by selective laser melting (SLM) method, also in dentistry, i.e., prosthodontics and orthodontics. In the present paper, the effect of laser printing parameters in the selective laser melting (SLM) process on the porosity and corrosion behavior of Ti-6Al-4V dental alloy was metallographically and electrochemically studied. All the tests were performed in artificial saliva at 37 °C. Different forms of Ti-6Al-4V alloy were selected: a reference sample, i.e., pre-fabricated milling disc in wrought condition and four different 3D-printed samples made from Ti-6Al-4V powder using the SLM method, one being heat treated. Electrochemical, spectroscopic and hardness measurements were employed in the study. It was shown that the SLM-produced Ti-6Al-4V samples with different printing parameters have similar microstructural and electrochemical properties, while the electrochemical properties of a reference and thermally treated 3D-printed sample were different, most probably due to the change in the microstructure of the alloys. The corrosion properties were related to the microstructural properties as well as to the pore density.
Keywords: Ti-6Al-4V, dental alloys, artificial saliva, selective laser melting, corrosion
Published in DiRROS: 31.05.2023; Views: 244; Downloads: 106
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107.
Comparison of cycling high temperature corrosion at 650°C in the presence of NaCl of various austenitic stainless steels
Mirjam Bajt Leban, Maja Vončina, Tadeja Kosec, Robert Tisu, Matevž Barborič, Jože Medved, 2023, original scientific article

Abstract: The high temperature corrosion at 650°C in the presence of NaCl at atmospheric pressure of AISI 304L, AISI 309, AISI 310S, AISI 314 and AISI 321 austenitic stainless steel was studied. The specimens were cyclically heated in the furnace and immersed in a 3.5% aqueous NaCl solution after cooling for 15 min. After each cycle, the change in mass of the samples was measured. The corroded samples were analysed by SEM /EDX, and the corrosion products were analysed by XRD. The chloride ions react with the steel surface to form porous and poorly adherent oxides and metal chlorides. After the mass increase during the first exposure cycles, spalling of the oxides occurred. The high temperature austenitic stainless steels (AISI 309, AISI 310S, AISI 314) showed less mass loss than conventional austenitic steels (AISI 304L). Surprisingly, the stainless steel AISI 321 showed a similar low weight loss after the cyclic test as AISI 309, but a detailed analysis of the exposed surfaces after the test showed a similar corrosion attack as for AISI 304. After the cyclic test at high temperature in the presence of NaCl, a higher concentration of Cr and Ni definitely improves the corrosion resistance under the present conditions, but a certain addition of Si is even more obvious.
Keywords: austenitic stainless steel, high temperature corrosion, NaCl, exhaust systems, open access
Published in DiRROS: 31.05.2023; Views: 246; Downloads: 161
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108.
Slikovna diagnostika pri raku materničnega telesa
Maja Marolt-Mušič, 2023, published scientific conference contribution

Abstract: Globina invazije je poleg patohistoloških značilnosti tumorja in prizadetosti bezgavk najbolj pomemben prognostičen faktor pri bolnicah z rakom telesa maternice (RTM). Običajno je transvaginalni UZ, ki ga opravi ginekolog, prva preiskava pri bolnicah z sumom na RTM. UZ preiskava ima svoje omejitve, predvsem pri oceni globine invazije in oceni prizadetosti regionalnih in oddaljenih bezgavk. MR preiskava medenice je najbolj zanesljiva metoda za oceno globine invazije in oceno prizadetosti bezgavk v mali medenici. Mednarodne smernice se glede uporabe MR preiskave nekoliko razlikujejo. Smernice Evropskega združenja za urogenitalno radiologijo (ESUR) iz leta 2009 in smernice Ameriškega Collega za radiologijo ocenjujejo MR preiskavo kot najbolj primerno radiološko metodo za predoperativno oceno oz. za načrtovanje zdravljenja, medtem ko NCCN smernice priporočajo MR preiskavo pri stadiju II oz. pri sumu na infiltracijo materničnega vratu.
Keywords: rak maternice, ginekološki raki, ginekološka onkologija
Published in DiRROS: 30.05.2023; Views: 282; Downloads: 103
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109.
Rak telesa maternice – ultrazvočna preiskava pri raku endometrija
Maja Krajec, 2023, published scientific conference contribution

Abstract: Rak endometrija je najpogostejši ginekološki rak. Natančna predoperativna diagnostika bolezni je zelo pomembna. Histološki izvid biopsije endometrija in uporaba transvaginalnega ultrazvoka (TVUZ) sta pogosto ključni predoperativni preiskavi za načrtovanje nadaljnjega zdravljenja.
Keywords: rak maternice, ginekološki raki, ginekološka onkologija
Published in DiRROS: 30.05.2023; Views: 256; Downloads: 107
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110.
Uvodnik
Gregor Vivod, Maja Krajec, 2023, preface, editorial, afterword

Keywords: rak maternice, ginekološki raki, ginekološka onkologija
Published in DiRROS: 30.05.2023; Views: 193; Downloads: 82
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