1,739,149 research outputs found
1143-136 Prosthetic valve endocarditis: Report of 214 cases from the intracardiac echocardiography prospective cohort study
No full text1143-136 Prosthetic valve endocarditis: Report of 214 cases from the intracardiac echocardiography prospective cohort stud
(Table T1) Diatom stratigraphy of ODP Site 184-1143
No full textDiatoms from Ocean Drilling Program Leg 184 Site 1143 in the southern South China Sea were analyzed for this paper. We found that diatoms are barren or scarce from 27.94 to 304.04 meters below seafloor. The intervals with age-diagnostic species indicate a middle Miocene age from 472.18 to 469.98 mcd, a late Miocene age or younger at 389.42 mcd, and a late Pliocene to Holocene age from 26.7 to 0.0 mcd
Age models of ODP Site 184-1143
No full textHere we present an improved astronomical timescale since 5 Ma as recorded in the ODP Site 1143 in the southern South China Sea, using a recently published Asian summer monsoon record (hematite to goethite content ratio, Hm/Gt) and a parallel benthic d18O record. Correlation of the benthic d18O record to the stack of 57 globally distributed benthic d18O records (LR04 stack) and the Hm/Gt curve to the 65°N summer insolation curve is a particularly useful approach to obtain refined timescales. Hence, it constitutes the basis for our effort. Our proposed modifications result in a more accurate and robust chronology than the existing astronomical timescale for the ODP Site 1143. This updated timescale further enables a detailed study of the orbital variability of low-latitude Asian summer monsoon throughout the Plio-Pleistocene. Comparison of the Hm/Gt record with the d18O record from the same core reveals that the oscillations of low-latitude Asian summer monsoon over orbital scales differed considerably from the glacial-interglacial climate cycles. The popular view that summer monsoon intensifies during interglacial stages and weakens during glacial stages appears to be too simplistic for low-latitude Asia. In low-latitude Asia, some strong summer monsoon intervals appear to have also occurred during glacial stages in addition to their increased occurrence during interglacial stages. Vice versa, some notably weak summer monsoon intervals have also occurred during interglacial stages next to their anticipated occurrence during glacial stages. The well-known mid-Pleistocene transition (MPT) is only identified in the benthic d18O record but not in the Hm/Gt record from the same core. This suggests that the MPT may be a feature of high- and middle-latitude climates, possibly determined by high-latitude ice sheet dynamics. For low-latitude monsoonal climate, its orbital-scale variations respond more directly to insolation and are little influenced by high-latitude processes, thus the MPT is likely not recorded. In addition, the Hm/Gt record suggests that low-latitude Asian summer monsoon intensity has a long-term decreasing trend since 2.8 Ma with increased oscillation amplitude. This long-term variability is presumably linked to the Northern Hemisphere glaciation since then
G-1143-2015-S Presentan prototipo Marco de Concreto para uso Militar; Conmemoran 25 años de la Fundación de ESIME Ticomán; Muestran estudiantes de la ESE proyectos de negocios; Arrancan con triunfos Búhos y Cheyenes Temporada de la Conferencia II de Liga Intermedia
No full textG-1143-2015-S Presentan prototipo Marco de Concreto para uso Militar; Conmemoran 25 años de la Fundación de ESIME Ticomán; Muestran estudiantes de la ESE proyectos de negocios; Arrancan con triunfos Búhos y Cheyenes Temporada de la Conferencia II de Liga IntermediaG-1143-2015-S Presentan prototipo Marco de Concreto para uso Militar; Conmemoran 25 años de la Fundación de ESIME Ticomán; Muestran estudiantes de la ESE proyectos de negocios; Arrancan con triunfos Búhos y Cheyenes Temporada de la Conferencia II de Liga IntermediaPD
F. Chalandon : Jean II Comnène (1118-1143) et Manuel Ier Comnène (1143-1180).
No full textJanin Raymond. F. Chalandon : Jean II Comnène (1118-1143) et Manuel Ier Comnène (1143-1180).. In: Échos d'Orient, tome 15, n°96, 1912. p. 479
G-1143-2015-S Presentan prototipo Marco de Concreto para uso Militar; Conmemoran 25 años de la Fundación de ESIME Ticomán; Muestran estudiantes de la ESE proyectos de negocios; Arrancan con triunfos Búhos y Cheyenes Temporada de la Conferencia II de Liga Intermedia
No full textG-1143-2015-S Presentan prototipo Marco de Concreto para uso Militar; Conmemoran 25 años de la Fundación de ESIME Ticomán; Muestran estudiantes de la ESE proyectos de negocios; Arrancan con triunfos Búhos y Cheyenes Temporada de la Conferencia II de Liga Intermedi
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
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