Digitalni repozitorij raziskovalnih organizacij Slovenije

Iskanje po repozitoriju
A+ | A- | Pomoč | SLO | ENG

Na voljo sta dva načina iskanja: enostavno in napredno. Enostavno iskanje lahko zajema niz več besed iz naslova, povzetka, ključnih besed, celotnega besedila in avtorja, zaenkrat pa ne omogoča uporabe operatorjev iskanja. Napredno iskanje omogoča omejevanje števila rezultatov iskanja z vnosom iskalnih pojmov različnih kategorij v iskalna okna in uporabo logičnih operatorjev (IN, ALI ter IN NE). V rezultatih iskanja se izpišejo krajši zapisi podatkov o gradivu, ki vsebujejo različne povezave, ki omogočajo vpogled v podroben opis gradiva (povezava iz naslova) ali sprožijo novo iskanje (po avtorjih ali ključnih besedah).

Pomoč
Išči po:
Možnosti:
 


1731 - 1740 / 2000
Na začetekNa prejšnjo stran170171172173174175176177178179Na naslednjo stranNa konec
1731.
Vanishing immanants
Hassan Cheraghpour, Bojan Kuzma, 2024, izvirni znanstveni članek

Povzetek: We classify all the irreducible characters of a symmetric group such that the induced immanant function $d$ vanishes identically on alternate matrices with the entries in the complex field.
Ključne besede: integer partition, young diagram, irreducible character, immanant alternate matrix
Objavljeno v DiRROS: 06.05.2024; Ogledov: 431; Prenosov: 256
.pdf Celotno besedilo (673,66 KB)
Gradivo ima več datotek! Več...

1732.
Isotropy groups of the action of orthogonal $^\ast$congruence on Hermitian matrices
Tadej Starčič, 2024, izvirni znanstveni članek

Povzetek: We present a procedure which enables the computation and the description of structures of isotropy subgroups of the group of complex orthogonal matrices with respect to the action of $^\ast$congruence on Hermitian matrices. A key ingredient in our proof is an algorithm giving solutions of a certain rectangular block (complex-alternating) upper triangular Toeplitz matrix equation.
Ključne besede: isotropy groups, matrix equations, complex orthogonal matrices, Hermitian matrices, Toeplitz matrices
Objavljeno v DiRROS: 06.05.2024; Ogledov: 488; Prenosov: 297
.pdf Celotno besedilo (651,15 KB)
Gradivo ima več datotek! Več...

1733.
On structures of normal forms of complex points of small ${\mathcal C}^2$-perturbations of real $4$-manifolds embedded in a complex $3$-manifold
Tadej Starčič, 2024, izvirni znanstveni članek

Povzetek: We extend our previous result on the behaviour of the quadratic part of a complex points of a small ${\mathcal C}^2$-perturbation of a real $4$-manifold embedded in a complex $3$-manifold. We describe the change of the structure of the quadratic normal form of a complex point. It is an immediate consequence of a theorem clarifying how small perturbations can change the bundle of a pair of one arbitrary and one symmetric $2 \times 2$ matrix with respect to an action of a certain linear group.
Ključne besede: CR manifolds, closure graphs, complex points, normal forms, perturbations
Objavljeno v DiRROS: 06.05.2024; Ogledov: 442; Prenosov: 249
.pdf Celotno besedilo (929,58 KB)
Gradivo ima več datotek! Več...

1734.
Jugoslavija i ambivalentnost ekonomske saradnje Jug-Jug u sedamdesetim i osamdesetim godinama
Jure Ramšak, 2024, izvirni znanstveni članek

Povzetek: Na vrhuncu napora zemalja u razvoju da uspostave Novi međunarodni ekonomski poredak, Jugoslavija je, kao jedna od vodećih članica Pokreta nesvrstanih i Grupe 77 zemalja u razvoju (G-77), nastojala da dokaže da je moguće uspostaviti novi obrazac odnosa između industrijski razvijenih zemalja, kojima je delimično i sama pripadala i saveznika iz ove koalicije, čije su ekonomske baze još uvek bile u fazi izgradnje. U skladu sa određenim dominantnim grupama unutar UN-a, jugoslovenska teorija razvoja spajala je marksistička sa neoklasičnim ekonomskim shvatanjima u ambiciozan program globalne reforme koja je odstupala od stavova kapitalističkih i socijalističkih velesila. Ipak, u isto vreme, ova vizija globalizacije morala je da se nosi sa ideološkim, geopolitičkim i ekonomskim uticajem novonastale neoliberalne revolucije, koja je početkom osamdesetih počela bitno sužavati prostor za manevrisanje. Pored programskih načela sadržanih u zvaničnim dokumentima, ovaj rad prati i konkretne oblike jugoslovenske bilateralne ekonomske saradnje sa pojedinim afričkim zemljama.
Objavljeno v DiRROS: 06.05.2024; Ogledov: 503; Prenosov: 188
.pdf Celotno besedilo (155,61 KB)
Gradivo ima več datotek! Več...

1735.
1736.
Evolution of RMA in Slovenia
Primož Petek, Tjaša Baloh, Vanda Baloh, 2024, samostojni znanstveni sestavek ali poglavje v monografski publikaciji

Povzetek: This chapter outlines the research management and administration (RMA) as a profession and work field in Slovenia. Thus, we present an overview of the Slovenian research system, describing how this system has evolved over time. In addition, we explain the emerging need for RMA skills, including its self-organisation component and the challenges that lie ahead. A section is dedicated to Slovenian RMA demographics using RAAAP-2 and RAAAP-3 surveys. The conclusions of the chapter focus on a forecast for the future of RMA in Slovenia and several possible paths to follow for its community.
Ključne besede: Slovenia, research management and administration, professionalisation, KOsRIS II, RAAAP, research ecosystem
Objavljeno v DiRROS: 30.04.2024; Ogledov: 558; Prenosov: 232
.pdf Celotno besedilo (734,17 KB)
Gradivo ima več datotek! Več...

1737.
Excellent outcomes after radiotherapy alone for malignant spinal cord compression from myeloma
Dirk Rades, Antonio J. Conde-Moreno, Jon Cacicedo, Barbara Šegedin, Volker Rudat, Steven E. Schild, 2016, izvirni znanstveni članek

Povzetek: Uncertainty exists whether patients with spinal cord compression (SCC) from a highly radiosensitive tumor require decompressive spinal surgery in addition to radiotherapy (RT). This study addressed the question by evaluating patients receiving RT alone for SCC from myeloma. Patients and methods. Data of 238 patients were retrospectively analyzed for response to RT and local control of SCC. In addition, the effect of RT on motor function (improvement, no further progression, deterioration) was evaluated. Overall response was defined as improvement or no further progression of motor dysfunction. Prior to RT, patients were presented to a neurosurgeon for evaluation whether upfront decompressive surgery was indicated (e.g. vertebral fracture or unstable spine). Results. In the entire cohort, the overall response rate was 97% (53% improvement plus 44% no further progression). Following RT, 88% of the patients were able to walk. Of the 69 non-ambulatory patients 44 patients (64%) regained the ability to walk. Local control rates at 1, 2 and 3 years were 93%, 82% and 82%, respectively. A trend towards better local control was observed for patients who were ambulatory before starting RT (p = 0.08) and those with a more favorable performance status (p = 0.07). Conclusions. RT alone provided excellent response rates, functional outcomes and local control in patients with SCC from myeloma. These results should be confirmed in a prospective randomized trial.
Ključne besede: myeloma, spinal cord compression, radiotherapy
Objavljeno v DiRROS: 30.04.2024; Ogledov: 486; Prenosov: 270
.pdf Celotno besedilo (585,22 KB)
Gradivo ima več datotek! Več...

1738.
Uncertainties in target volume delineation in radiotherapy : are they relevant and what can we do about them?
Barbara Šegedin, Primož Petrič, 2016, izvirni znanstveni članek

Povzetek: Modern radiotherapy techniques enable delivery of high doses to the target volume without escalating dose to organs at risk, offering the possibility of better local control while preserving good quality of life. Uncertainties in target volume delineation have been demonstrated for most tumour sites, and various studies indicate that inconsistencies in target volume delineation may be larger than errors in all other steps of the treatment planning and delivery process. The aim of this paper is to summarize the degree of delineation uncertainties for different tumour sites reported in the literature and review the effect of strategies to minimize them. Conclusions. Our review confirmed that interobserver variability in target volume contouring represents the largest uncertainty in the process for most tumour sites, potentially resulting in a systematic error in dose delivery, which could influence local control in individual patients. For most tumour sites the optimal combination of imaging modalities for target delineation still needs to be determined. Strict use of delineation guidelines and protocols is advisable both in every day clinical practice and in clinical studies to diminish interobserver variability. Continuing medical education of radiation oncologists cannot be overemphasized, intensive formal training on interpretation of sectional imaging should be included in the program for radiation oncology residents.
Ključne besede: target volume, interobserver variability, delineation uncertainties, imaging
Objavljeno v DiRROS: 30.04.2024; Ogledov: 723; Prenosov: 546
.pdf Celotno besedilo (904,32 KB)
Gradivo ima več datotek! Več...

1739.
Electrochemotherapy with bleomycin is effective in BRAF mutated melanoma cells and interacts with BRAF inhibitors
Tanja Jesenko, Lara Prosen, Maja Čemažar, Tjaša Potočnik, Gregor Serša, 2016, izvirni znanstveni članek

Povzetek: The aim of the study was to explore the effectiveness of electrochemotherapy (ECT) during the treatment of melanoma patients with BRAF inhibitors. Its effectiveness was tested on BRAF mutated and non-mutated melanoma cells in vitro and in combination with BRAF inhibitors. Materials and methods. ECT with bleomycin was performed on two human melanoma cell lines, with (SK-MEL-28) or without (CHL-1) BRAF V600E mutation. Cell survival was determined using clonogenic assay to determine the effectiveness of ECT in melanoma cells of different mutation status. Furthermore, the effectiveness of ECT in concomitant treatment with BRAF inhibitor vemurafenib was also determined in BRAF mutated cells SK-MEL-28 with clonogenic assay. Results. The survival of BRAF V600E mutated melanoma cells was even lower than non-mutated cells, indicating that ECT is effective regardless of the mutational status of melanoma cells. Furthermore, the synergistic interaction between vemurafenib and ECT with bleomycin was demonstrated in the BRAF V600E mutated melanoma cells. Conclusions. The effectiveness of ECT in BRAF mutated melanoma cells as well as potentiation of its effectiveness during the treatment with vemurafenib in vitro implies on clinical applicability of ECT in melanoma patients with BRAF mutation and/or during the treatment with BRAF inhibitors.
Ključne besede: electrochemotherapy, BRAF inhibitors, vemurafenib, melanoma
Objavljeno v DiRROS: 30.04.2024; Ogledov: 593; Prenosov: 150
.pdf Celotno besedilo (642,09 KB)

1740.
Bevacizumab plus chemotherapy in elderly patients with previously untreated metastatic colorectal cancer : single center experience
Janja Ocvirk, Maja Ebert Moltara, Tanja Mesti, Marko Boc, Martina Reberšek, Neva Volk, Jernej Benedik, Zvezdana Hlebanja, 2016, izvirni znanstveni članek

Povzetek: Metastatic colorectal cancer (mCRC) is mainly a disease of elderly, however, geriatric population is underrepresented in clinical trials. Patient registries represent a tool to assess and follow treatment outcomes in this patient population. The aim of the study was with the help of the patients% register to determine the safety and efficacy of bevacizumab plus chemotherapy in elderly patients who had previously untreated metastatic colorectal cancer. Patients and methods. The registry of patients with mCRC was designed to prospectively evaluate the safety and efficacy of bevacizumab-containing chemotherapy as well as selection of patients in routine clinical practice. Patient baseline clinical characteristics, pre-specified bevacizumab-related adverse events, and efficacy data were collected, evaluated and compared according to the age categories. Results. Between January 2008 and December 2010, 210 patients with mCRC (median age 63, male 61.4%) started bevacizumab-containing therapy in the 1st line setting. Majority of the 210 patients received irinotecan-based chemotherapy (68%) as 1st line treatment and 105 patients (50%) received bevacizumab maintenance therapy. Elderly (% 70 years) patients presented 22.9% of all patients and they had worse performance status (PS 1/2, 62.4%) than patients in < 70 years group (PS 1/2, 35.8%). Difference in disease control rate was mainly due to inability to assess response in elderly group (64.6% in elderly and 77.8% in < 70 years group, p = 0.066). The median progression free survival was 10.2 (95% CI, 6.7%16.2) and 11.3 (95% CI, 10.2%12.6) months in elderly and < 70 years group, respectively (p = 0.58). The median overall survival was 18.5 (95% CI, 12.4%28.9) and 27.4 (95% CI, 22.7%31.9) months for elderly and < 70 years group, respectively (p = 0.03). Three-year survival rate was 26% and 37.6% in elderly vs. < 70 years group (p = 0.03). Overall rates of bevacizumab-related adverse events were similar in both groups: proteinuria 21/22 %, hypertension 25/19 %, haemorrhage 2/4 % and thromboembolic events 10/6 %, for elderly and < 70 years group, respectively. Conclusions. In routine clinical practice, the combination of bevacizumab and chemotherapy is effective and welltolerated regimen in elderly patients with metastatic colorectal cancer.
Ključne besede: metastatic colorectal cancer, bevacizumab, chemotherapy, elderly
Objavljeno v DiRROS: 30.04.2024; Ogledov: 487; Prenosov: 165
.pdf Celotno besedilo (620,74 KB)

Iskanje izvedeno v 0.65 sek.
Na vrh