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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
Body proportions and body composition in patients with turner syndrome treated with or not with growth hormone
Full text linkOrientador: Gil Guerra JuniorTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciencias MedicasResumo: Objetivo: Avaliar medidas de composição e proporções corporais em mulheres adultas jovens com síndrome de Turner (ST) tratadas ou não com rhGH e comparar a um grupo de mulheres saudáveis da mesma faixa etária. Casuística: Foi composta de 52 pacientes com ST não-tratadas com rhGH (23,0 + 5,8 anos), 20 tratadas (21,6 + 1,6 anos) e 133 mulheres normais (22,9 + 3,2 anos), eutireoidianas e com ciclos menstruais há pelo menos dois anos. Métodos: Todas as pacientes foram submetidas a medidas antropométricas de altura em pé, altura sentada, peso, comprimentos da mão e do pé, envergadura, perímetro cefálico, diâmetros biilíaco e biacromial. A composição corporal foi avaliada por bioimpedância elétrica tetrapolar, circunferências da cintura e quadril, relação cintura/quadril, perímetro braquial, espessura da prega cutânea tricipital, áreas magra e gorda do braço. Foram avaliados o cariótipo das pacientes com ST, a necessidade de reposição estrogênica, o histórico de hipotireoidismo e a idade de início, duração e dose do rhGH. Resultados: A idade de início do rhGH variou de 8,2 a 15,1 anos (10,2 + 1,2 anos), a duração do tratamento de 2,8 a 7,9 anos (3,6 + 1,6 anos), com dose média de 1,1 UI/Kg/semana (de 0,8 a 1,5 UI/Kg/semana). Houve associação entre a idade de início e o tempo de uso do rhGH, mas estas não se associaram com a dose do rhGH. Em relação às proporções corporais, as pacientes com ST não apresentaram diferenças significativas entre aquelas que usaram e as que não usaram rhGH A diferença acorreu no comprimento da mão, que foi maior nas pacientes que usaram rhGH. Todas as variáveis antropométricas, com exceção do perímetro cefálico, nas pacientes com ST (tratadas ou não com rhGH) foram diferentes em relação às mulheres normais de mesma faixa etária. Em relação à composição corporal, o peso e o quadril foram menores em relação ao grupo controle e o IMC e a % de massa gorda foi maior. Nas pacientes com ST não foi observada associação entre o cariótipo, o antecedente de hipotireoidismo e a necessidade reposição estrogênica. Conclusão: Nesta amostra de pacientes com ST não ocorreu diferenças na maioria das variáveis analisadas se comparadas as que usaram ou não rhGH. Provavelmente, isto ocorra devido ao tratamento tardio e/ou por tempo de uso do rhGH. As únicas diferenças encontradas foram no comprimento da mão, peso, IMC, quadril, mostrando a importância da avaliação das proporções corporais, em especial das extremidades, durante o tratamento com rhGH.Abstract: Objective: To evaluate body composition and corporal proportion measurements in young adult women with Turner syndrome (TS) treated or not with rhGH and comparing with a group of healthy women with the same age group. Patients: Was composed of 52 patients with non rhGH treated TS ranging (23,0 + 5,8 years old), 20 rhGH treated (21,6 + 1,6 years old) and 133 healthy women (22,9 + 3,2 years old), euthyroid and with a menstrual cycle of at least two years. Methods: All patients were submitted to anthropometric measurements of height, sitting height, weight, hand and foot length, arm span, head circumference, biiliac and biocromial diameters. The body composition was evaluated by bioelectrical Impedance (BIA), waist and hip circumferences, waist/hip relation, arm circumference, triceps skinfold thickness, arm fat and lean areas. The karotype of TS patients, estrogenic treatment, hipotireoidism history and the initial age, duration and rhGH dose were also evaluated. Results: The initial age of rhGH ranged from 8.2 to 15.1 years old (10.2 + 1.2) and the treatment duration ranged from 2.8 from 7.9 years old (3.6 + 1.6), with mean dose of 1.1 U/Kg/week (0.8 - 1.5 U/Kg/week). There was association between age of initiation and the period of use of rhGH, but those didn't get association with dose of rhGH. The patients with TS did not present significant statistic differences in the majority of anthropometric variables among the women used and that didn't use rhGH. The difference occurred in the hand length, in wich variable was greater in the patients who used rhGH in relation to those who did not use. All anthropometric variables, with exception of head circumference, in the patients with TS (treated or not with rhGH) were different in relation to the healthy women in the same age group. In relation to body composition, the measurements of weight and hip were lower in relation to control group and the BMI was greater. In the patients with TS, an association between karyotype, preceding hipotireoidism and the necessity of hormonal treatment were not observed. Conclusion: In this sample of patients with TS there were no differences in the majority of analyzed variables among the group that used and did not use rhGH. Probably this result has occurred due to the late treatment and/or use time of rhGH. The singular differences occurred in the hand length, weight, BMI, and hip, showing the importance of evaluation of corporal proportion, especially the extremities, during the treatment with rhGH.DoutoradoDoutor em Saude da Criança e do Adolescent
Estudo transversal das proporções e da composição corporais de pacientes brasileiras com Sindrome de Turner
Full text linkOrientadores: Gil Guerra Junior, Andre Moreno MorcilloDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciências MédicasResumo: Avaliar a composição e as proporções corporais de um grupo de pacientes brasileiras com síndrome de Turner (ST) e comparar com os dados dinamarqueses de Gravholt e Naeraa (1997). Métodos: Estudo transversal de 50 pacientes com ST (5-43 anos), avaliando-se idade, cariótipo, desenvolvimento puberal, medidas corporais de estatura em pé (Epé) e sentada (Es), Epé/Es, envergadura (Env), peso (P), IMC, perímetro cefálico (PC), comprimento da mão, do pé e da perna, cintura (C), quadril (Q), C/Q, diâmetros biacromial (Dbia) e biilíaco (Dbii). A composição corporal foi avaliada por bioimpedância elétrica (BIA) e pelas medidas de perímetro braquial e prega cutânea triciptal com cálculo das áreas magra e gorda do braço (Cameron, 1978). Sempre que possível os dados foram transformados em z escore. Foi feita análise descritiva, aplicados o teste de Mann-Whitney e a análise de variância. Resultados: Praticamente não se observaram diferenças das variáveis em relação aos cariótipos. Vinte e duas pacientes eram impúberes e 28 púberes, e todas as variáveis foram significativamente maiores na puberdade. A (média + 1DP) foi: Epé 135,3 + 13,1 cm; Es 73,4 + 6,7; Epé/Es 0,54 + 0,07; Env 133,4 + 15,5; P 39,1 + 14,2 Kg; IMC 20,6 + 5,1 Kg/m2; PC 53,1 + 2 cm; C/Q 0,87 + 0,07; mão 15,7 + 1,8 cm; pé 20,7 + 2,2 cm; Dbia 31,3 + 4,1 cm e Dbii 22,8 + 3,2 cm. Com exceção da Epé, Es e Env, os escores de DP de todas as variáveis apresentaram médias acima de ¿2DP. O mesmo foi observado quando foram analisadas apenas as 15 pacientes com idade acima de 20 anos, sendo somente o P, o IMC e os Dbia e Dbii significativamente menores que os dados dinamarqueses. Em relação à composição corporal destas 15 pacientes, observou-se que todos os dados não diferem significativamente, com exceção da água corporal total em Kg e da massa magra em Kg. No entanto, é interessante observar que todos os valores deste estudo são menores em relação ao estudo dinamarquês, com exceção da % de massa magra e da relação entre massa magra e massa gorda.Conclusão: O comprometimento de crescimento na ST ocorre fundamentalmente no eixo longitudinal, e os resultados observados neste estudo são comparáveis aos dinamarqueses, o mesmo ocorrendo em relação à composição corporal. Estas pacientes tendem a apresentar uma deposição de gordura localizada, com predomínio abdominalAbstract: To evaluate body composition and proportions in Brazilians patients with Turner Syndrome (TS) and compare with Danish data published by Gravholt & Naeraa (1997). Methods: A cross sectional study with 50 patients with TS (5-43 years), evaluating age, karyotype, pubertal development and body measurements like height (H), sitting height (SH), arm span (AS), weight (W), BMI, head circumference (HC), length of hand, foot and leg, waist (W), hip (H), W to H ratio (W/H), biacromial diameter (BiaD), and biiliac diameter (BiiD). The body composition was measured by bioimpedance electrical (BIA) and arm circumference and triceps skinfold thickness, calculating arm fat and lean mass area (Cameron, 1978). The data were changed in z score as it is possible. A descriptive analysis was done and Mann-Whitney test and variance analysis were applied. Results: There were no significant differences of the antropometric findings according to the karyotype. Twenty-two patients were nonpubertal and 28 pubertal, and all of the measurements were significantly increased in puberty. The Mean ± SD were: H 135.3 + 13.1 cm; SH 73.4 + 6.7 cm; H/SH 0.54 + 0.07cm; AS 133.4 + 15.5 cm; W 39.1 + 14.2 Kg; BMI 20.6 + 5.1 Kg/m2; HC 53.1 + 2 cm; W/H 0.87 + 0.07; hand 15.7 + 1.8 cm; foot 20.7 + 2.2 cm; BiaD 31.3 + 4.1 cm; and BiiD 22.8 + 3.2 cm. The standard deviation scores of all variables showed means above -2, except H, SH and AS. The same was observed when only the 15 patients above 20 years were analyzed, only W, BMI, BiaD, and BiiD were significantly smaller than the Danish one. Regarding body composition of these patients, the data are similar, except total body water (Kg) and lean body mass (Kg). However, all variables of this study are smaller than the Danish data, except % lean body mass and lean mass/fat mass. Conclusion: The retardation of growth in TS occurs mainly in the longitudinal axis, when compared to the horizontal axis. Our results are comparable to those of the Danish study, occuring the same for body composition. These patients tend to accumulate fat mass, mostly in abdominal regionMestradoSaude da Criança e do AdolescenteMestre em Saude da Criança e do Adolescent
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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