Utilidad de la clasificación de las revistas en la categoría dermatología de Index Medicus y de la Journal Citation Reports para localizar documentos de dermatólogos españoles (1987 y 2000)
Keywords
DermatologyScience Citation Index
Index Medicus
MedLine
thematic classification in Medicine
Dermatología
Science Citation Index
Index Medicus
MedLine
clasificaciones temáticas en Medicina
Bibliography. Library science. Information resources
Z
DOAJ:Library and Information Science
DOAJ:Social Sciences
Full record
Show full item recordAbstract
The objective is to compare the utility of the classifications of Journal Citation Reports (JCR) (category «Dermatology & Venereal Diseases» (D&VD)) and Index Medicus (IM) (category «Dermatology» («D»)) in order to locate the publications of Spanish dermatologists during the period 1987-2000 covered by MedLine database. We found 1,517 documents in dermatology journals, in which 1,130 (74.5%) the first author was a dermatologist, in 122 (8%) a dermatologist was not the first author, and in 265 (17.5%) there was no dermatologist as author. Those journals included in section «D&VD» of JCR and not included in section «D» of IM presented the majority of documents without dermatologist (91.5%). On the other hand, only 8.8% of documents published in journals included in section «D&VD» of JCR and «D» of IM were not signed by a dermatologist (p < 0.001). In documents non-signed by dermatologists, the first author belongs to Allergy in 122 documents (8%) followed byPathology in 78 cases. The 96.7% of 122 documents assigned to Allergy were published in the journal Contact Dermatitis. In conclusion, the classification used by IM grouping dermatological journals is a better option to locate the scientific production of Spanish dermatologists in international literature than the classification used by JCR.<br><br>Se trata de comparar la utilidad de las clasificaciones del JCR (categoría Dermatology & Venereal Diseases» (D&VD)) e Index Medicus (IM) (categoría «Dermatology»(D)) para localizar los documentos de dermatólogos españoles durante el periodo 1987-2000 registrados en la base de datos MedLine. De los 1517 documentos localizados en ambas bases, en 1130 (74,5%) el primer firmante era un dermatólogo, en 122 (8%) figuraba un dermatólogo en otras posiciones y en 265 (17,5%) no aparecía ninguno. Las revistas incluidas en la categoría «D&VD» de JCR y no incluidas en el apartado «D» de IM recogieron la mayor proporción de los documentos sin dermatólogo (91,5%). Por otro lado, sólo el 8,8% de los documentos de las revistas incluidas en las secciones «D&VD» de JCR y «D» de IM no están firmados por un dermatólogo (p < 0,001). De los documentos de primeros firmantes no dermatólogos, el primer lugar lo ocupaba la especialidad de alergia con 122 documentos, seguido de anatomía patológica con 78. El 96,7% de los 122 documentos adscritos a alergia están recogidos en la revista Contact Dermatitis. En conclusión, la clasificación empleada por el IM para agrupar las revistas de dermatología permite conocer la actividad científica de los dermatólogos mejor que la empleada por el JCR.Date
2003-12-01Type
ArticleIdentifier
oai:doaj.org/article:1aee893e2a8a404c92f0a0148541032d0210-0614
1988-4621
https://doaj.org/article/1aee893e2a8a404c92f0a0148541032d
Collections
Related items
Showing items related by title, author, creator and subject.
-
Changes in Soil Properties before and after Wetland Degradation in the Yellow River Delta, ChinaHuang, Chen; Bai, Junhong; Shao, Hongbo; Gao, Haifeng; Xiao, Rong; Huang, Laibin; Liu, Peipei (2012-10-01)The aim of this study is to determine whether wetland degradation in the Yellow River Delta has an effect on its soil properties. Twenty soil samples collected from degraded and undegraded wetlands were analyzed using hierarchical cluster analysis and principal correspondence analysis. The statistical analyses revealed that soil samples from both degraded and undegraded wetlands could be clearly distinguished according to their properties. These soil properties such as nitrate nitrogen, ammoniac nitrogen, and pH showed significant changes after wetland degradation than before. However, degraded wetland soils did not exhibit significant changes in electric conductivity (EC) and soil organic matter (SOM). Six soil properties excluding EC and SOM were transformed to establish a simplified chemical index of soil degradation (CDI) for evaluating wetland soil quality before and after wetland degradation. Lower CDI values of undegraded wetland soils were observed than those of degraded wetland soils. The methods used in this study can be further used in larger areas to evaluate and monitor the degradation status of wetlands, and can contribute to wetland management and restoration practices.
-
Changes in Soil Properties before and after Wetland Degradation in the Yellow River Delta, ChinaHuang, C; Bai, JH; Shao, HB; Gao, HF; Xiao, R; Huang, LB; Liu, PP (2012-10)The aim of this study is to determine whether wetland degradation in the Yellow River Delta has an effect on its soil properties. Twenty soil samples collected from degraded and undegraded wetlands were analyzed using hierarchical cluster analysis and principal correspondence analysis. The statistical analyses revealed that soil samples from both degraded and undegraded wetlands could be clearly distinguished according to their properties. These soil properties such as nitrate nitrogen, ammoniac nitrogen, and pH showed significant changes after wetland degradation than before. However, degraded wetland soils did not exhibit significant changes in electric conductivity (EC) and soil organic matter (SOM). Six soil properties excluding EC and SOM were transformed to establish a simplified chemical index of soil degradation (CDI) for evaluating wetland soil quality before and after wetland degradation. Lower CDI values of undegraded wetland soils were observed than those of degraded wetland soils. The methods used in this study can be further used in larger areas to evaluate and monitor the degradation status of wetlands, and can contribute to wetland management and restoration practices.
-
Variability of extreme summer precipitation over Circum-Bohai-Sea region during 1961-2008Jiang, Dejuan; Wang, Kun; Li, Zhi; Wang, Qiuxian (2011-06-01)The variability of extreme summer precipitation over Circum-Bohai-Sea region during 1961-2008 was investigated based on the daily precipitation data of 63 meteorological stations using the linear regression method, the non-parametric Mann-Kendall test, and the continuous wavelet transform method. The results showed that there were large spatial differences in the trends of extreme summer precipitation indices. Decreasing trends were found in summer total precipitation, extreme precipitation frequency, intensity and proportion, the maximum consecutive wet days (CWD), and the maximum 1- and 5-day precipitation, and the largest decrease was observed in the central coast area (except CWD), although the trends were not statistically significant at the 5% level at most places. Inversely, the maximum consecutive dry days exhibited non-significant increasing trends. Additionally, the significant 2-4-year periods were detected for eight indices, showing the significant interannual variability of extreme summer precipitation. Overall, the results of this study indicated that in the last 48 years, there was severe water stress over Circum-Bohai-Sea region, especially in the central coast area, which exerted negative effects on economic development and natural ecosystems.