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1962. Bordering of symmetric matrices and an application to the minimum number of distinct eigenvalues for the join of graphsAida Abiad, Shaun M. Fallat, Mark Kempton, Rupert H. Levene, Polona Oblak, Helena Šmigoc, Michael Tait, Kevin N. Vander Meulen, 2023, izvirni znanstveni članek Ključne besede: inverse eigenvalue problem, minimum number of distinct eigenvalues, borderings, joins of graphs, paths, cycles, hypercubes Objavljeno v DiRROS: 18.03.2024; Ogledov: 537; Prenosov: 217 Celotno besedilo (485,46 KB) Gradivo ima več datotek! Več... |
1963. Antigen expression on recurrent meningioma cellsAndrej Vranič, 2010, izvirni znanstveni članek Povzetek: Introduction. Meningiomas are intracranial brain tumours that frequently recur. Recurrence rates up to 20% in 20 years for benign meningiomas, up to 80% for atypical meningiomas and up to 100% for malignant meningiomas, have been reported. The most important prognostic factors for meningioma recurrenceare meningioma grade, meningioma invasiveness and radicality of neurosurgical resection. The aim of our study was to evaluate the differences in antigenic expression on the surface of meningioma cells between recurrent and non-recurrent meningiomas. Methods. 19 recurrent meningiomas and 35 non-recurrent meningiomas were compared regarding the expression of MIB-1 antigen, progesterone receptors, cathepsin B and cathepsin L, using immunohistochemistry. Results. MIB-1 antigen expression was higher in the recurrent meningioma group (p=0.001). No difference in progesterone receptor status between recurrent and non-recurrent meningiomas was confirmed. Immunohistochemical intensity scores for cathepsin B (p= 0.007) and cathepsin L (p<0.001) were both higher in the recurrent than in the non-recurrent meningioma group. Conslusions. MIB-1 antigen expression is higher in recurrentcompared to non-recurrent meningiomas. There is no difference in expression of progesterone receptors between recurrent and non-recurrent meningiomas. Cathepsins B and L are expressed more in recurrent meningiomas. Objavljeno v DiRROS: 15.03.2024; Ogledov: 404; Prenosov: 132 Celotno besedilo (956,01 KB) |
1964. Study of radiation induced changes of phosphorus metabolism in mice by ▫$^{31}P$▫ NMR spectroscopyIgor Serša, Simona Kranjc Brezar, Gregor Serša, Alenka Nemec Svete, Bojan Ložar, Ana Sepe, Jernej Vidmar, Marjeta Šentjurc, 2010, izvirni znanstveni članek Objavljeno v DiRROS: 15.03.2024; Ogledov: 448; Prenosov: 166 Celotno besedilo (699,32 KB) |
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1967. Genetic markers in oligodendroglial tumoursTomaž Velnar, Uroš Smrdel, Mara Popović, Gorazd Bunc, 2010, pregledni znanstveni članek Povzetek: Background. Oliogodendrogliomas are brain tumours composed of the cells resembling oligodendrocytes. They represent the third most common glial tumour, comprising 2.5% of all primary brain tumours and 5-20% of all gliomas. Conclusions. Oligodendroglial tumours with 1p and 19q loss demonstrate a better overall prognosis due to more indolent clinical behaviour and higher sensitivity to treatment. Additionally, 1p and 19q loss is a marker of clinical utility, helping to assess tumour sensitivity to chemotherapy and harbouring the potential for improving the diagnosis and survival of oligodendroglioma patients as well as future clinical practice. Objavljeno v DiRROS: 15.03.2024; Ogledov: 433; Prenosov: 130 Celotno besedilo (616,34 KB) |
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1970. Invariants of multi-linkoidsBoštjan Gabrovšek, Neslihan Gügümcü, 2023, izvirni znanstveni članek Povzetek: In this paper, we extend the definition of a knotoid to multilinkoids that consist of a finite number of knot and knotoid components. We study invariants of multi-linkoids, such as the Kauffman bracket polynomial, ordered bracket polynomial, the Kauffman skein module, and the $T$-invariant in relation with generalized $\Theta$-graphs. Ključne besede: knotoid, multi-linkoid, spatial graph, Kauffman bracket polynomial, Kauffman bracket skein module, theta-curve, theta-graph Objavljeno v DiRROS: 15.03.2024; Ogledov: 375; Prenosov: 201 Celotno besedilo (924,28 KB) Gradivo ima več datotek! Več... |