1,721,007 research outputs found
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
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
Investigation of pentraxin 3, placental protein 13 and some biochemical parameter's levels in pregnants with and without preeclampsia diagnosis
No full textGebeliğin ikinci ve üçüncü trimester döneminde olan preeklampsi tanısı almış gebeler ile normal arter kan basıncına sahip gebelerin serum pentraksin 3 ve plasental protein 13 düzeylerinin kıyaslanması ve bu verilerin albümin, laktat dehidrogenaz, ürik asit, trombosit sayısı parametreleri ile karşılaştırılarak elde edilen bulguların preeklampsi tanı ve patogenezine ne tür katkı sağlayacağının belirlenmesidir.
YÖNTEM: Necmettin Erbakan Üniversitesi Meram Tıp Fakültesi Kadın Hastalıkları ve Doğum Kliniği’ne Ocak 2020-Ocak 2021 tarihleri arasında başvuran 40’ı preeklampsi tanısı almış toplam 80 gebenin takipleri esnasında alınmış venöz kan örnekleri ile çalışıldı. 20-40 yaş aralığında ve 24. ve 40. gebelik haftaları arasında olan gebeler 32. gebelik haftası kıstas alınarak 2 alt gruba ayrıldı. Pentraksin 3 ve plasental protein 13 düzeyleri sandiviç ELISA yöntemi (Bioassay Technology, Shanghai, China) ile çalışıldı. Elde edilen veriler serum albümin, laktat dehidrogenaz, ürik asit ve tam kan trombosit sayısı düzeyleriyle kıyaslandı.
BULGULAR: Normal kan basınçlı gebelerle kıyaslandığında preeklamptik gebe grubunda serum pentraksin 3 ve plasental protein 13 düzeylerinde birbirleriyle pozitif yönde korele olan azalma saptandı. Preeklampsi grubunda saptanan plasental protein 13 seviyelerinde azalma istatistiksel olarak anlamlı bulundu. Preeklampsi grubundaki albümin ve trombosit düzeylerinde azalma, laktat dehidrogenaz ve ürik asit düzeylerinde artış istatistiksel olarak anlamlı bulundu. Ayrıca preeklampsi grubunda saptanan laktat dehidrogenaz düzeylerindeki artış ile trombosit sayısı ve albümin düzeylerinde azalma arasında negatif yönde korelasyon saptandı.
SONUÇ: Preeklampsi hastalarında saptanan plasental protein 13 düzeylerinde azalma istatistiksel olarak anlamlı bulunmuş olup; plasental protein 13’ün ikinci ve üçüncü trimester gebelerde preeklampsi değerlendirmesinde kullanılabilir olduğu kanaati oluşmuştur.Comparison of serum pentraxin 3 and placental protein 13 levels of pregnant women diagnosed with preeclampsia in the second and third trimesters of pregnancy and those with normal blood pressure, and comparing these data with the parameters of albumin, lactate dehydrogenase, uric acid, platelet count, and what the results of the findings mean on the diagnosis and pathogenesis of preeclampsia determining how to make a contribution.
METHOD: Venous blood samples taken from Necmettin Erbakan University Meram Faculty of Medicine, Gynecology and Obstetrics Clinic during the follow-up of a total of 80 pregnant women, 40 of whom had preeclampsia, were studied from January 2020 to January 2021. Pentraxin 3 and placental protein 13 levels were studied using the sandwich ELISA method. Data were compared with albumin, lactate dehydrogenase, uric acid and platelet levels.
RESULTS: When compared with pregnant women with normal blood pressure, a decrease in serum pentraxin 3 and placental protein 13 levels, which were positively correlated with each other, was found in the preeclamptic pregnant group. The decrease in placental protein 13 levels in the preeclampsia group was found to be statistically significant. Decrease in albumin and thrombocyte levels, and increase in lactate dehydrogenase and uric acid levels in the preeclampsia group were found to be statistically significant. In addition, a negative correlation was found between the increase in lactate dehydrogenase levels and the decrease in platelet count and albumin levels in the preeclampsia group.
CONCLUSION: The decrease in placental protein 13 levels detected in preeclampsia patients was found to be statistically significant; It has been concluded that placental protein 13 can be used in the evaluation of preeclampsia in second and third trimester pregnancies
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
The investigation of serum zinc levels of patients with ovarian cyst and policystic over syndrome (PCOS)
Get PDFYüksek Lisans Tezi'Ovaryum Kisti ve Polikistik Over Sendromlu Hastalarda Serum Çinko Düzeylerinin Araştırılması' isimli çalışma 30 ovaryum kistli (OK), 30 polikistik over sendromlu (PKOS) ve 20 sağlıklı bireyden (kontrol grubu) olmak üzere toplam 80 kişi üzerinde çalışılmıştır. Sunulan çalışmada OK, PKOS ve sağlıklı kontrol gruplarından alınan kan örneklerinde çinko, folikül stimüle hormon (FSH), lüteinizan hormon (LH) ve östradiol (E2) düzeyleri ölçülmüştür. Bu değerler ovaryum kisti grubunda sırasıyla 63.89 ± 12.57; 5.51 ± 2.93; 7.50 ± 7.76 ve 122.73 ± 87.09; polikistik over grubunda 65.54 ± 11.32; 6.16 ± 5.07; 7.59 ± 5.32 ve 207.52 ± 556.88 ile sağlıklı kontrol grubunda 62.92 ± 10.21; 5.16 ± 3.07; 6.45 ± 8.70 ve 124.17 ± 87.07 olarak bulunmuştur. Her 3 grubun çinko düzeyleri normal düzeylerin alt sınırlarında ölçülmüştür. Grup içi ilişkilere bakıldığında ise çinko düzeyinin OK ve PKOS grubunda istatistiksel açıdan önemli olmayan oranda kontrol grubuna göre yüksek olduğu tespit edilmiştir. FSH, LH ve östradiol ortalama değerlerini de her üç grupta normal sınırlar içerisinde bulunmuş olup gruplar arası farklılıkların istatistiksel açıdan önemsiz olduğu gözlemlenmiştir. Sonuç olarak her ne kadar gruplar arasında ölçülen parametrelerin istatistiksel açıdan anlamlı bir veri elde edilememiş ve ovaryum kisti ile polikistik over sendromu arasında çinko ile bağlantılı önemli bir sonuca varılamamış olsa da bu durum bu hastalıkların olıuşumunda çinkonun payının olmayacağı da göstermemektedir. Çünkü bugüne kadar açığa çıkmış bütün veriler ve çinkonun metabolizmadaki rolüne ait bilgiler (her ne kadar sunulan çalışmada istatistiksel açıdan önemli bir veri ortaya konulamamış olsa da) böyle bir ihtimalin var olma olasılığını düşündürmektedir.'Investigation of Serum Zinc Levels in Patients with Ovarian Cysts and Polycystic Ovary Syndrome (PCOS)' In this study, a total of 80 people were studied, 30 of which were ovarian cysts (OC), 30 were policystic over syndrome (PCOS) and 20 healthy subjects (control group). Serum zinc, follicle-stimulating hormone (FSH), luteinizing hormone (LH) and estradiol (E2) levels were measured in blood samples taken from OC, PCOS and healthy control groups. These values were 63.89 ± 12.57; 5.51 ± 2.93; 7.50 ± 7.76 and 122.73 ± 87.09 in the ovarian cyst group, respectively. 65.54 ± 11.32; 6.16 ± 5.07, 7.59 ± 5.32 and 207.52 ± 556.88 in the policystic over group were found as 62.92 ± 10.21; 5.16 ± 3.07; 6.45 ± 8.70 and 124.17 ± 87.07 in the healthy control group respectively. Zinc levels of each group of 3 were measured at the lower limits of normal levels. When the intra-group correlations were examined, it was determined that the zinc level was higher in the OC and PCOS group than in the control group, which is not statistically significant. The mean values of FSH, LH and estradiol were also within normal limits in all three groups, and the differences between the groups were statistically insignificant. As a result, although statistically significant data were not obtained for the parameters measured between the groups and there was no significant zinc-related result between the ovarian cyst and the policystic over syndrome, this does not indicate the absence of zinc in the occurrence of these diseases. Because of the information on the role of metabolism in all the data and zinc that has been released so far (although statistically significant data can not be presented in the study presented), this possibility suggests the possibility of existence
The Determination of Bloods Lipid of Adult Policlinics sicks in Konya region
No full textSunulan çalışma, Ocak 2005 - Aralık 2006 yılları arasında Çumra Devlet Hastanesi polikiliniklerine başvuranlardan, çalışma kriterlerine uyan 598 kadın ve 408 erkek olmak üzere 25-55 yaşları arasında toplam 1006 yetişkin hasta üzerinde gerçekleştirildi. Kan örnekleri 12 saatlik açlığı takiben sabah saatlerinde (08:00-09:30 arası) vakumlu tüplere alındı, serumlar ayrıştırıldı ve TG,TC,HDL ve LDL analizleri konelab 60 i cihazında gerçekleştirildi. Deneklerin vücut ağırlığı, boy ölçümleri yapılarak vücut kitle indeksi (VKİ/BMİ) hesaplandı. VKİ 30 ve üzeri olanlar obez, 30'un altı olanlar da obez olmayan olarak gruplandırıldı. Santral Obesite ölçümlerine göre ise kadınlar 88 cm ve üzeri, erkekler de de 102 cm ve üzeri olanlar santral obez olarak değerlendirildi. Çalışmada beslenme şekli, yaşam tarzı, sigara, horlama gibi faktörlerde sorgulanarak ölçülen parametrelerle aralarındaki ilişkiler değerlendirildi. Elde edilen verilerden 1006 deneğin ortalama trigliserit (TG) düzeyi 167,80±98,43 mg/dl olarak bulunurken, erkeklerde bu rakam 174,37±102.69 mg/dl kadınlarda ise 163. 31±95. 25 mg/dl olarak bulundu. Elde edilen bu sonuçların, 150-190 mg/dl arası ?sınırda yüksek? tanımı içinde olduğu gözlendi. Diğer kriterlere göre bakıldığında TG değerleri santral obez kişilerle, sigara içenlerde ortalamanın üzerinde olduğu gözlendi. Etli ekmek çok tüketenlerde ise beklenenin aksine ortalamanın altında bulundu ve bu durum, bu kişilerin yaşam tarzı sorgulamalarındaki düzenli egzersiz ile izah edildi. Bütün grupların ortalama total kolesterol (TC) düzeyi 196.66±44.93 mg/dl olarak tespit edilirken erkeklerde 191.76±43.55 mg/dl, kadınlarda ise 200.00±45. 59 mg/dl olarak bulundu. Bu sonuçlara göre Cinsiyetin TC üzerine p<0,05 düzeyinde önemli etkisi tespit edildi. Ayrıca hem erkek hem de kadınlarda santral obesitenin TC üzerine önemli düzeyde (p<0,05) etkisi olduğu gözlendi. HDL kolesterol düzeyi ortalama 50.67±12.30 mg/dl ,erkeklerde bu rakam 48.11±12.59 mg/dl kadınlarda ise 52.41±11.80 mg/dl olarak bulundu. HDL üzerine sedanter yaşam tarzı ve sigara içiciliğinin (aktif-pasif) olumsuz etkisi tespit edildi (p<0,05). Araştırma sonucunda erkek ve kadın toplam 1006 kişide ortalama LDL kolesterol düzeyi 115.49± 38.52 mg/dl ,erkeklerde bu rakam 112.23±36.19 mg/dl kadınlarda ise 117.71±39.90 mg/dl olarak bulundu. Santral obesitenin LDL üzerine olumsuz etkisi (p<0,05) tespit edildi. Çalışmada da ayrıca, anamnez verilerine göre yapılan hesaplamalarda sigara ile horlama arasında ilginç olarak nitelenebilecek bir ilişki tespit edilmiş olması, bu durumun bilimsel çalışmalarda ele alınması gerekli bir kriter olarak değer kazanabileceği kanaatini uyandırdı.The represented study has been realized on totally 1006 adult people consists of 598 women and 408 men between the age of 25 -55 from the persons who applied to the (Çumra Devlet Hastanesi) Cumra Goverment Hospital and suited to the searching criteria. The blood specimens are taken to the vacum ?operated glass fallowing the starvation of 12 hours in morning (between 08 ? 09.30) and intravenous solutions are analyzed , and the analysis of TG, TC, HDL, LDL are carried out in the Konelab 60İ machine. The body heavies of adult people , their body mass index (BMI/VKİ) are measured by making the measurement of height. Adult people whose VKİ is 30 and over are grouped as obese and whose is under 30 are grouped as not obese. According to the central obesity measurement the women whose measurement is 88 cm and over and the men whose measurement is 102 cm and over are accepted as central obese. In our studying by interrogating factors such as eating habits life styyles , cigarette, and snoring , its connetction with the measured parameters are evaluated. From the obtained datums when 1006 adult people average TG levels are faund as 167, 80 +/- 98, 43 mg/dl , this number is found in men as 174, 37 +/- 102, 69 mg/dl andı t is found in women as 163, 31 +/-95 mg/dl.These obtained results are seen in the definition of `high frontier ` between 150/190 mg/dl. When looked other criteria , TG values are seen over average in central obese people and in smoker. When it comes to the person who ears too much Etli Ekmek, on the contrary to our expectation ıt is found under the average and this stuation explained with the reguler exercise they do in their life style. When the all groups average total cholesterol (TC) level is defined as 196, 66 +/- 44, 93 mg /dl, it is found in men as 191, 76 +/- 43 mg/dl and it is found in women as 200, 00+/- 45, 59 mg /dl. According to these results , the effect of sex on TC is measured as p<0, 05 , an important effect. Also , both in women and man it is seen that central obestiy has on impectant effect (p<0, 05) on TC. Average HDL cholesterol level is found as 50, 67 +/- 12, 30 mg/dl, in men this number is 48, 11 +/- 12, 59 mg/dl in women and it is found as 52, 41 +/- 11, 80 mg/dl. It is found that (active ?passive ) smoking and sedanter life style have negative effect on HDL(p<0, 05). In the outcome of searching , totaly 1006 people both men and women level is 115, 49 +/- 38, 52 mg/dl , in man this number is 112, 23 +/- 36, 19 mg/dl , in women ıt is found as 117, 71 +/- 39, 90 mg /dl. It is defined central obesity has negative effect on LDL as (p<0, 05). In searching also , according to the calculation which is mode whith the datum of anamnez , the findings of a connection between snoringand smoking which will be defined as interesting , gives us the idea, this stuation can gain importance as a criteria which can be on essential criteria in scientific studyings
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