1,720,965 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
SURVIVAL OF PROSTATE CANCER PATIENTS WITH COMBINATION HORMONAL-RADIOTHERAPY BETTER THAN HORMONAL THERAPY
Full text linkObjective: This study aims to determine the survival of prostate cancer (PCa) patients who did not undergo radical prostatectomy, but received hormonal therapy or a combination of radiotherapy and hormonal therapy. Material & Methods: This study was an observational analytic study with a retrospective cohort design, using secondary data to determine baseline data and diagnosis of patients, and using primary data to determine the survival of prostate cancer patients who received combination hormonal and radiotherapy therapy compared with hormonal therapy alone. The analysis was performed using chi-square and contingency coefficients to assess the relationship between survival with factors such as age, stage T, N, M, clinical stage, type of therapy, and prognosis. It also used the Kaplan Maeier curve to assess the survival picture of prostate cancer patients at Sardjito General Hospital. Results: 79 patients met the inclusion criteria. The mean age of the patients was 68 ± 8.4 years. A total of 52 (65.8%) patients received hormonal therapy, and 27 (34.2%) patients received combination hormonal and radiotherapy. There were 41 (51.9%) patients remain life, while 38 (48.1%) of patients died during the monitoring. We found that the Gleason score, PSA level, and clinical stage were significantly associated with patient survival with p <0.005. The 5 years survival rate patient with local, locally advanced clinical stage and PSA level ≤20 ng/ml who received combination hormonal and radiotherapy achieved 100%. Conclusion: Combination of hormonal and radiotherapy was more improving patient survival compared with hormonal therapy only in patient with locally advanced clinical stage, PSA level ≤20 ng/ml and Gleason score ≤7
PREDICTIVE FACTORS OF BLOOD TRANSFUSION AFTER TURP AT SARDJITO GENERAL HOSPITAL YOGYAKARTA
No full textObjective: To know the factors that can predict the need for blood transfusions after transurethral resection of the prostate (TURP) at Dr. Sardjito General Hospital. Material & method: This is a retrospective study. Analysis performed on 250 patients who underwent TURP between the years 2013 to 2015. The independent variables evaluated were age, body mass index (BMI), the estimated size of the prostate by transabdominal ultrasonography (TAUS), duration of surgery, hemoglobin level (Hb), the value of international normalized ratio (INR), history of hypertension, diabetes mellitus (DM) and the use of aspirin, and leukosituria. The dependent variable evaluated was the estimated amount of bleeding which was described by the blood transfusion requirements in patients after TURP. Results: Hb levels before surgery (p=0.000), history of hypertension (p=0.001) and a history of aspirin consumption (p=0.008) had a significant association with blood transfusion after TURP. The Hb cut-off value was 12.45 g/dl. Age, BMI, the estimated size of the prostate by TAUS, duration of surgery, history of diabetes and leukosituria did not have a significant association with blood transfusion after TURP. Conclusion: The results showed that Hb levels before surgery, a history of hypertension and aspirin usage can be predictive factors for blood transfusions after TURP
Variations on the Author
Full text link“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
Full text linkWe 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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
PREDICTIVE FACTOR OF METASTATIC RENAL CELL CARCINOMA PATIENT IN SARDJITO HOSPITAL PERIOD 2010 - 2015
No full textObjective: To analyze the association between various prognostic factors and the incidence of renal cell carcinoma (RCC) metastatic. Material & methods: This is a descriptive retrospective study. In this research, the dependent variable is metastatic RCC while the predictor factor as independent variable influencing renal cell carcinoma metastasis. The study population were all patients with renal cell carcinoma that were diagnose in Sardjito Hospital from period 2010 to 2015. Results: In this study there were 34 patients who became the object of research. Consisting of men as many as 20 people (58.8%) while women as many as 14 people (41.2%), while for the age category <51 years as many as 16 people (47.1%) while RCC patients aged > 51 years old 18 People (52.9%). In this study, patients with RCC mostly found in stage 2 were 15 people (44.1%), stage 3 of 6 people (17.6%), stage 4 were 13 people (38.2%). These results are consistent with previous studies which suggest that RCC is found most frequently in stage 2 (Soblin et al, 1997). The p value = < 0.038 indicates that there is a significant correlation between tumor staging and metastatic occurrence in RCC, the result of this study is similar to the previous study which stated that the higher the staging of the tumor the greater the risk of metastasis with p value = 0.001 (Vina et al., 2016). Conclusion: There was a significant association between staging of renal cancer and metastatic events
MIRNA-92A PROFILING IN MUSCLE INVASIVE AND NON-MUSCLE INVASIVE BLADDER CANCERS IN RSUP DR SARDJITO YOGYAKARTA
Full text linkObjective: The purpose of this study was to determine the expression of miRNA-92A in Bladder Cancer can be used as a marker of tumor. Material & Methods: This study used a total of 30 samples. 15 samples of non-invasive bladder cancer and 15 samples of muscle invasive bladder cancer. The sample was obtained in the Anatomical Pathology laboratory from January 2016 to December 2016. Tumor tissue then extracted miRNA-92A with a RT-PCR examination with Total miRNA Mini Kit FavorPrepTM. The result is done by Mann Whitney U test. Results: The mean expression of miRNA-92A in non-muscle invasive bladder cancer is 12.75 while in muscle invasive bladder cancer had an average value of 31.79. The Mann Whitney U test was used to evaluate the median difference between these groups. There was a significant difference in the expression of miRNA-92A in both groups with P = 0.000 (<0.005). Conclusion: There is a significant difference between the expression of miRNA-92A in non-muscle invasive bladder cancer compared to muscle invasive bladder cancer with more dominant expression on muscle invasive bladder cance
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