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PubMed2005

The Primary Care Electronic Library (PCEL) five years on: open source evaluation of usage.

BACKGROUND: The Primary Care Electronic Library (PCEL) is a collection of indexed and abstracted internet resources. PCEL contains a directory of quality-assured internet material with associated search facilities. PCEL has been indexed, using metadata and established taxonomies. Site development requires an understanding of usage; this paper reports the use of open source tools to evaluate usage. This evaluation was conducted during a six-month period of development of PCEL. OBJECTIVE: To use open source to evaluate changes in usage of an electronic library. METHOD: We defined data we needed for analysis; this included: page requests, visits, unique visitors, page requests per visit, geographical location of users, NHS users, chronological information about users and resources used. RESULTS: During the evaluation period, page requests increased from 3500 to 10,000; visits from 1250 to 2300; and unique visitors from 750 to 1500. Up to 83% of users come from the UK, 15% were NHS users. The page requests of NHS users are slowly increasing but not as fast as requests by other users in the UK. PCEL is primarily used Monday to Friday, 9 a.m. to 5 p.m. Monday is the busiest day with use lessening through the week. NHS users had a different list of top ten resources accessed than non-NHS users, with only four resources appearing in both. CONCLUSIONS: Open source tools provide useful data which can be used to evaluate online resources. Improving the functionality of PCEL has been associated with increased use.

Information Dissemination↗
PubMed1986

New clinical approach to evaluate disorders of potassium excretion.

A new clinical approach to patients with disorders of potassium excretion is reported. This approach uses a urinary index, the ratio of potassium concentrations in the urine to vein after adjusting the urine potassium concentration for medullary water abstraction. This index provides a semiquantitative assessment of the apparent transtubular potassium concentration gradient (TTKG) in the major distal nephron segment where potassium is secreted. Three clinical situations are presented where the use of this index provided a better indication of the renal action of mineralocorticoids than did the traditional approach; in each case, the presence of mineralocorticoids was known as drugs with this action were administered. We emphasize that use of this index is restricted to situations where the urine is not hypotonic and distal nephron sodium delivery is not limiting for potassium secretion (greater than 25 mM, twice the sodium concentration required for maximum potassium transport at this nephron site).

Desoxycorticosterone↗
PubMed1996

[History of physiology journals].

Two physiological journals were founded in Czechoslovakia in 1952, namely Ceskoslovenská fyziologie and an international version which was then named Cechoslovackaja fiziologija, later renamed Physiologia Bohemoslovaca. The first three volumes of the latter journal were published exclusively in Russian with German summaries. It was not until 1956 that most reports began to be published in English, with Russian summaries. In 1958, the content of both journals at last became separated. Cs. fyziol. started to publish review articles in Czech or Slovak, abstracts of communications reported at various scientific meetings, news from international symposia, etc. Physiol. Bohemoslov. continued to print the results of original experimental work. The major personality standing at the cradle of the two journals was Ernest Gutmann. Both journals were published by the Institute of Physiology of the Czechoslovak Academy of Sciences in Prague. In an attempt to make the latter journal more attractive to perspective authors from abroad, the international journal was renamed Physiological Research (formerly Physiologia Bohemoslovaca) in 1991 and still is being published by the same institution. It is indexed and abstracted by Current Contents, Excerpta Medica/Medline, Biological Abstracts, Chemical Abstracts, Current Awareness in Biological Sciences and Science Citation Index. A major change also occurred with the journal Ceskoslovenská fyziologie. This is now (since 1992) being published by the Czech Medical Society J.E. Purkynĕ. Besides publishing reviews intended as pregraduate and postdoctoral training for physiologists, physicians, pharmacologists and others working in allied fields of science, the journal informs members of the Czech and Slovak Physiological Societies about domestic and world news in physiology.

Czech Republic↗
PubMedDate not supplied

The fate of neuroradiologic abstracts presented at national meetings in 1993: rate of subsequent publication in peer-reviewed, indexed journals.

BACKGROUND AND PURPOSE: Abstract presentations are a valuable means of rapidly conveying new information; however, abstracts that fail to eventually become published are of little use to the general medical community. Our goals were to determine the publication rate of neuroradiologic papers originally presented at national meetings in 1993 and to assess publication rate as a function of neuroradiologic subspecialty and study design. METHODS: Proceedings from the 1993 ASNR and RSNA meetings were reviewed. A MEDLINE search encompassing 1993-1997 was performed cross-referencing lead author and at least one text word based on the abstract title. All ASNR and RSNA neuroradiologic abstracts were included. Study type, subspecialty classification, and sample size were tabulated. Publication rate, based on study design and neuroradiologic subspecialty, was compared with overall publication rate. Median duration from meeting presentation to publication was calculated, and the journals of publication were noted. RESULTS: Thirty-seven percent of ASNR abstracts and 33% of RSNA neuroradiologic abstracts were published as articles in indexed medical journals. Publication rates among neuroradiologic subspecialty types were not significantly different. Prospective studies presented at the ASNR were published at a higher rate than were retrospective studies. There was no difference between the publication rate of experimental versus clinical studies. Neuroradiologic abstracts were published less frequently than were abstracts within other medical specialties. Median time between abstract presentation and publication was 15 months. CONCLUSION: Approximately one third of neuroradiologic abstracts presented at national meetings in 1993 were published in indexed journals. This rate is lower than that of abstracts from medical specialties other than radiology.

Abstracting and Indexing↗
PubMed1989

Patent literature as a source of information for research and development: an investigation on calcium phosphate-containing biomaterials, Part I.

The usefulness of patent literature for research and development is mostly unknown. Therefore a specific patent retrieval has been carried out concerning calcium phosphate-containing biomaterials. This research field includes chemical, medical, and engineering problems and is of importance to the development of bioactive materials for bone replacement. The preliminary work includes information on the characteristics and the availability of patent literature as well as about patent classification systems according to which the documents are filed in patent collections. By reading the non-patent literature searching questions can be formulated. The proper patent retrieval starts with the study of secondary literature especially that in Chemical Abstracts, which report on patents since 1907. The structure of Chemical Abstracts, their indexes and sections help to find relevant patents of chemical or chemical engineering contents fast and inspire to read patents of bordering areas. This retrieval from Chemical Abstracts led to 171 patents disclosed 1975-1985 and to 95 patents disclosed in 1986; the latter are listed in a table. The contents of the abstracts inform on the research activity and help to reduce time and effort for a continuation of the retrieval in a patent collections or database.

Bibliographies as Topic↗
PubMed2006

Carrier testing in minors: a systematic review of guidelines and position papers.

The objective of this article is to review all published normative ethical and clinical guidelines concerning the genetic carrier testing of minors. The databases Medline, Philosopher's Index, Biological Abstracts, Web of Science, and Google Scholar were searched using keywords relating to the carrier testing of children. We also searched the websites of the national bioethics committees indexed on the websites of WHO and the German Reference Center for Ethics in the Life Sciences, the Human Genetics Societies of various nations indexed on the website of the International Federation of Human Genetics Societies and related links, and the national medical associations indexed on the website of the World Medical Association. We retrieved 14 guidelines emanating from 24 different groups. All guidelines advanced the following preferences: (1) carrier testing should not be performed in children, and (2) testing should be deferred until the child can give proper informed consent to be tested. The guidelines varied in three areas: (a) the role of genetic services in ensuring that children are informed about their carrier status and associated risks when they are older; (b) exceptions to the general rule of withholding or deferring carrier testing; and (c) the communication of incidentally discovered carrier status. In the absence of compelling reasons, carrier testing of a child can reasonably be deferred until the child has the intellectual capacity needed to discern if and when to be tested.

Child↗
PubMedDate not supplied

A patent searcher's personal chronicle: 40 years in the evolution of a profession.

Forty years have passed since this chemist elected to attempt to become an information chemist, thus pursuing a career path he had not heard of during his undergraduate and graduate education. Much has changed during that period. Punched cards, microfilm and microfiche, coordinated term indexes, and more have come and gone. The US Patent and Trademark Office has issued more than 3 million patents, exceeding its total output in all the years that came before. Online database searching replaced prior reliance on printed indexes and classified card files, and now seeks to redefine itself to stand up against the juggernaut of the Internet. In the face of all that change the traditional abstracting and indexing function is still with us, though not without considerable reshaping. This paper surveys this landscape of change and suggests that if we are wise, we will nurture this intellectual activity far into the future.

Journal Article↗
PubMed1998

Depression following traumatic brain injury.

OBJECTIVE: Review the existing literature on the incidence, neurobiological and psychosocial correlates, and methods of assessment and treatment of depression following traumatic brain injury (TBI). DATA SOURCES: Computerized database searches of the English-language literature from Index Medicus, Psychological Abstracts, Excerpta Medica, and Cumulative Index of Nursing and Allied Health Literature. STUDY SELECTION: Given the relatively small number of publications specifically related to TBI and depression, all studies appearing in the peer-reviewed literature were included in the review. In addition, studies examining depression and other neurologic diseases (eg, stroke) were also reviewed as to the potential applicability of the theoretical model or methodology used. CONCLUSIONS: Depression occurs with sufficient frequency to be considered a significant consequence after TBI. Depression can impede the achievement of optimal functional outcome, whether in the acute or chronic stages of recovery. It appears that a combination of neuroanatomic, neurochemical, and psychosocial factors is responsible for the onset and maintenance of depression. Its treatment is typically psychopharmacologic, with best results obtained from nontricyclic antidepressants. These results have not been confirmed in double-blind clinical trials, however. Future research should use comprehensive, integrative models of depression that include demographic, biologic, and psychosocial factors; enhanced functional neuroimaging techniques; controlled studies of psychopharmacologic and other interventions; and prospective designs with long-term follow-up.

Antidepressive Agents↗
PubMed2006

Presymptomatic and predictive genetic testing in minors: a systematic review of guidelines and position papers.

The objective of this study is to review ethical and clinical guidelines and position papers concerning the presymptomatic and predictive genetic testing of minors. The databases Medline, Philosopher's Index, Biological Abstracts, Web of Science and Google Scholar were searched using keywords relating to the presymptomatic and predictive testing of children. We also searched the websites of the national bioethics committees indexed on the websites of World Health Organization (WHO) and the German Reference Centre for Ethics in the Life Sciences, the websites of the Human Genetics Societies of various nations indexed on the website of the International Federation of Human Genetics Societies and related links and the national medical associations indexed on the website of the World Medical Association. We retrieved 27 different papers dealing with guidelines or position papers that fulfilled our search criteria. They encompassed the period 1991-2005 and originated from 31 different organizations. The main justification for presymptomatic and predictive genetic testing was the direct benefit to the minor through either medical intervention or preventive measures. If there were no urgent medical reasons, all guidelines recommend postponing testing until the child could consent to testing as a competent adolescent or as an adult. Ambiguity existed for childhood-onset disorders for which preventive or therapeutic measures are not available and for the timing of testing for childhood-onset disorders. Although the guidelines covering presymptomatic and predictive genetic testing of minors agree strongly that medical benefit is the main justification for testing, a lack of consensus remains in the case of childhood-onset disorders for which preventive or therapeutic measures are not available.

Age Factors↗
PubMed1952

INDEXER'S lament.

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Abstracting and Indexing↗