1,721,313 research outputs found
High-dose radiation-induced meningiomas following acute lymphoblastic leukemia in children
No full textThe authors review three personal cases of patients who developed cerebral meningiomas following high-dose radiotherapy for acute lymphoblastic leukemia. Two patients were female and one male. Their ages when the leukemia appeared were between 11 and 15 years. All patients were treated with a course of prophylactic irradiation to the neuraxis for a total dose of 24 Gy. After an average interval of 10.4 years, all three patients presented a meningioma; histologically, one was meningothelial and two were fibrous. All three meningiomas presented atypical features. At follow-up 1, 4, and 4 years respectively after surgery, none of these patients presents neurological deficits or neuroradiological signs of recurrence. Forty-nine cases of high-dose radiation-induced meningioma are also reviewed
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
Novel Heterocyclic Systems. Synthesis of 10H-Pyrrolo[1,2-b][1,2,5]benzothiadiazocine 5,5-Dioxide and Related Derivatives.
No full textResearch on Nitrogen Containing Heterocyclic Compounds. XX. Synthesis of 8H-Imidazo[5,1-c]pyrrolo[1,2-a][1,4]benzodiazepine and its 6-Derivatives.
No full textSupratentorial glioblastoma in children: a series of 27 surgically treated cases
No full textReporting a series of 27 supratentorial glioblastomas in pediatric patients treated surgically in the Department of Neurosurgical Sciences-Neurosurgery Section-of "La Sapienza" University of Rome, we discuss the principal clinical features, treatment and prognosis of the tumour with reference to the salient published series
A linguistic clarification for four key anatomical terms
Full text linkThis brief note aims to offer some historical and methodological clarification on four key anatomical words (anatomy, dissection, autopsy and prosection) which are often used incorrectly by students and members of the public when referring to human anatomy. The origin, meaning and – for the most important ones – correct pronunciation of the words is given as well as recommendations on how to use them correctly
ARYLSULFONYL PYRROLES FROM REACTION OF TOSYLMETHYL ISOCIANIDE (TOSMIC) WITH 3-ARYLSULFONYL ACRYLATES AS MICHAEL ACCEPTORS.
No full textIntradiploic epidermoid cysts of the skull: report of 10 cases and review of the literature
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