1,721,089 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
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
Neurokognitive Spätfolgen bei Kindern und Jugendlichen mit akuter lymphoblastischer Leukämie und Hirntumor
Full text linkBackground An increasing number of children suffering from childhood cancer has been treated successfully during the last 30 years and survival rates are now up to > 80 % for the acute lymphoblastic leukemia and about 60% for the children with a brain tumor, e.g. medulloblastoma. Within the last years cranial irradiation for prophylaxis of the central nervous system (CNS-prophylaxis) has been replaced by chemotherapy only in the standard and medium risk groups because of the CNS-toxicity of cranial irradiation. In a multicenter, cross-sectional stydy of CNS-toxicities in former pediatric ALL-patients we detected that cranial irradiation was a main risk-factor for developing intellectual impairments, attention deficits, behaviour problems and signs of leukencephalopathy. In 1997 we started a multicenter, longitudinal study investigating pediatric All- and brain tumor-patients - receiving only chemotherapy for CNS-prophylaxis according to the ALL-BFM and CoALL protocols – with regard to CNS-toxicity. Methods Between october 1997 and march 2003 225 patients with ALL and 77 patient with brain tumor were treated according to the ALL-BFM-95, -COALL-97, -ALL-BFM-99-Pilot, -ALL-BFM-2000 and HIT-2000-protocoll in one of the 31 participating hospitals. Assesment of neurological an dneuropsychological status of the patients and 4 times: within the first 8 days after diagnosis (E1), after reinduction therapy (E2), after maintenance therapy (E3) and 2 years after therapy. We have obtained data of 345 patients on E1, 259 patients on E2, 140 patients on E3 and data of 42 at E4. The patients were average 9 years of age (3-17 y.: 143 female, 201 male) at diagnosis. 40,63 % (n=104) of them were treated according to ALL-BFM-95 and had received a cumulative dosis of 134 mg MTX intrathecal (i.th.) and 19200 mg MTX systemic (prednisone, dexamethasone, vincristine, asparaginase, daunorubicine, doxorubicine, cyclophosphamide, cytarabine, 6-MP, thymoglobuline). 20,70 % (n=53) were treated according to the COALL-97 protocol and had received a cumulative dosis of 135 mg MTX i.th. and 4250 mg MTX systemic (in addition VM26). 20,70 % (n=53) were treated according to the ALL-BFM-2000 protocol and had received a cumulative dosis of 156 mg MTX i.th. and 20000 mg MTX systemic. The 9 Patients (3,52 %) treated according to the HIT-2000 protocoll for brain tumor therapy received a cumulative dosis of 71 mg MTX intraventrikular and 30000 mg MTX systemic. Following neurological and psychological tests are used: Touwens for neurologic-motoric evaluation, K-ABC/K-TIM for intellectual performance, Td2/DL-KE/DL-KG for concentration and the Child Behaviour Checklist for the evaluation of behavioural problems. Results Intellectual performance significantly decreased in the age group 80% und die der Hirntumorpatienten bei ca. 60%. Diese Therapieerfolge sind nicht zuletzt auf die ZNS-spezifische Therapie zurückzuführen. Vor dem Hintergrund der steigenden Prävalenz langzeitüberlebender einer malignen Erkrankung im Kindesalter gewinnt die Frage der Auswirkungen einer antineoplastischen Therapie im Kindesalter auf die somatische und psychosoziale Entwicklung der Patienten und deren Lebensqualität eine immer größer werdende Bedeutung. In den TOS der ALL wurde in den letzten Jahren die kraniale Bestrahlung als Rezidivprophylaxe durch alleinige Chemotherapie für die Standard-und Mittelrisikogruppen ersetzt. In verschiedenen retro- und eigenen prospektiven Untersuchungen konnte gezeigt werden, dass die ZNS-Bestrahlung einen Hauptrisikofaktor für die Entwicklung neurokognitiver Spätfolgen darstellt. Zu diesen gehören neben Störungen der motorischen Funktionen auch neuropsychologische Einschränkungen im Bereich der Aufmerksamkeits- und Konzentrationsfähigkeit, sowie Verhaltensauffälligkeiten. 1997 begannen wir eine prospektive multizentrische Studie um die durch alleinige Chemotherapie als ZNS-Prophylaxe hervorgerufenen neurokognitiven Spätfolgen in ihrem Auftreten, Ausmaß und Verlauf zu untersuchen. Patienten und Methoden Zwischen Oktober 1997 und März 2003 wurden 225 Patienten mit einer ALL und 77 Patienten mit einem Hirntumor gemäß den Behandlungsprotokollen ALL-BFM-95, COALL-97, ALL-BFM-99-Pilot und ALL-BFM-2000 und HIT-2000 an den 31 teilnehmenden Kliniken behandelt. Der Untersuchungszeitraum erstreckt sich von Diagnosedatum (E1) über die Reinduktion (E2) und Erhaltungstherapie (E3) bis 2 Jahre nach Abschluss der Erhaltungstherapie (E4). Zu den einzelnen Erhebungszeitpunkten wurden die Patienten neurologisch (Touwens-Schema) und neuropsychologisch hinsichtlich ihrer intellektuellen Fähigkeiten (K-ABC/K-TIM), Konzentrationsfähigkeit (Test d2/DL-KE/DL-KG) und Verhaltensauffälligkeiten (CBCL) untersucht. Ergebnisse Während der langen Beobachtungszeit von Diagnose bis 2 Jahre nach Ende der Erhaltungstherapie zeigten sich im einzelnen Patientenverlauf und im Vergleich der einzelnen Therapieprotokolle keine signifikanten Unterschiede hinsichtlich der neurologischen Untersuchung. Bezüglich der intellektuellen Fähigkeiten zeigte sich eine nicht signifikante Verschlechterung nach der Induktionstherapie (E1:108 vs. E2: 106), die sich aber im weiteren Verlauf zurückbildete und zu den weiteren Erhebungszeitpunkten (E3: 106,5, E4: 109,5) nicht mehr nachweisbar war. Das Alter der Patienten zeigte einen signifikanten Einfluss auf die Veränderung der IQ-Testergebnisse (p<0.0001). Die neuropsychologischen Test zur Konzentration und zum Verhalten zeigte ebenfalls keine signifikanten Veränderungen. Praktische Schlussfolgerung Diese Studie konnte zeigen, dass jüngere Patienten (<6 Jahre) ein höheres Risiko haben eine Einschränkung der intellektuellen Fähigkeiten zu erleiden als ältere. Dies kann auf die Sensibilität des sich in der Entwicklung und Reifung befindlichen Gehirns zurückgeführt werden. Für die neurologischen und neuropsychologischen Teilbereiche sind bei zukünftigen prospektiven Studien längere Untersuchungszeiträume notwendig um neurokognitive Spätfolgen nach antineoplastischer Therapie im Kindesalter zu erfassen
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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