1,721,056 research outputs found
A primer hepatocellularis rák kezelése [Treatment of primary hepatocellular carcinoma]
Get PDFPrimary hepatocellular cancer is the fifth most common solid tumor worldwide. Its incidence is the highest in the Third World, however, a risen incidence has been observed recently also in developed countries, due to increasing migration. In Asia and Africa the main etiological factor for HCC is chronic HBV infection, whereas in the Western world HCV etiology predominates. Additional increase in HCC incidence is expected as a consequence of climate change, since risk of aflatoxin contamination in agricultural products increases with hot and dry growing conditions. Aflatoxins are the most potent hepatocarcinogens in nature; therefore minimization of aflatoxin exposition will be a main task of food security in the future. The majority of HCC patients are diagnosed in advanced stages, and treatment possibilities are limited for this patient population. Follow-up of risk populations by means of tumor surveillance is therefore essential. Experience with systemic chemotherapy has been disappointing with low response rates and high toxicity. Recently, novel treatment options have emerged, including the use of specific targeted agents, blockers of signaling pathways involved in hepatocarcinogenesis. Sorafenib, an oral multikinase-inhibitor is the first systemic agent to demonstrate survival benefit in advanced hepatocellular cancer. Several new, promising therapeutic options are being tested in clinical trials
A gyomorrák kezelésének aktualitásai
Get PDFGastric cancer is the 9th most common malignancy in Hungary, being the 4th most frequent cause of death among all cancers. The traditional treatment approaches did not turn out to be effective against advanced gastric cancer. On the other hand, due to better understanding of the underlying molecular biology of tumors, targeted therapeutics emerge resulting in longer survival times. Dank M. Recent advances in the treatment of gastric cancer
Multidiszciplináris, innovatív megközelítés a tumorok világában: Biomarkerek a diagnosztikában, életminőség javítása rossz prognózisú daganatos megbetegedésekben
No full textPrediktív és prognosztikus faktorok szolid tumorokban -a molekuláris képalkotás és a patológiai ismeretek szerepe a terápiás válasz mérésében és annak előrejelzése során
Get PDF
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
A primer májdaganat gyógyszeres kezelési lehetőségei
Get PDFHepatocellular carcinoma is the most common primary malignancy
of the liver, with increasing incidence worldwide. Chronic
liver diseases, especially liver cirrhosis, are the primary
risk factors in the pathogenesis. Curative therapy is usually
possible only in early disease, however, most cases are
diagnosed at advanced stage. Until recently sorafenib was the
only viable option for systemic treatment, however, over the
past years many new targeted and immunotherapy drugs proved to
be efficient in first and second line as well
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
- …
