Do elephants feel pain and if so, how do we know this?

The objective of this document is to identify the behavior of the academic international production in urban history, from the bibliographical records index-linked in Scopus between 1973 and 2010. We use bibliometric indicators from SCImago Group, applying them to the production in the field of arts and humanities. Afterward, we corroborate the results obtained with the indicators calculated exclusively for 1.098 records of urban history. A geographical concentration is observed in the mechanisms of diffusion, authors and institutional affiliation. Likewise, we identify that over 50% of the works published between 1973 and 2010 have not been used by other authors to create new knowledge.El propósito de este documento es identificar el comportamiento de la producción académica internacional en historia urbana, a partir de los registros bibliográficos indizados en Scopus entre 1973 y 2010. Para ello se emplean indicadores bibliométricos obtenidos de SCImago Group y aplicados a la producción en el área de artes y humanidades. Posteriormente, se contrastan los resultados obtenidos con los indicadores calculados exclusivamente para 1.098 registros de historia urbana. Se evidencia una concentración geográfica en los medios de difusión de los productos del área, los autores y su filiación. Se identifica también que más del 50% de los trabajos realizados entre 1973 y 2010 no ha sido empleado por otro autor para crear nuevo conocimientoO propósito deste documento é identificar o comportamento da produção acadêmica internacional em história urbana, a partir dos registros bibliográficos indexados em Scopus entre 1973 e 2010. Para isso, empregam-se indicadores bibliométricos obtidos de SCImago Group e aplicados à produção na área de artes e humanidades. Posteriormente, se contrastam os resultados obtidos com os indicadores calculados exclusivamente para 1,098 registros de historia urbana. Evidencia-se uma concentração geográfica nos meios de difusão dos produtos da área, os autores e sua filiação. Identifica-se também que mais do 50% dos trabalhos realizados entre 1973 e 2010 não tem sido empregados por outro autor para criar conhecimento novo

Design of movables Weirs and Storm Surge Barriers

State of of in the dsign of movable weirs and storm surge barriersINCO

Prospective, randomized comparison of 3-dimensional computed tomography guidance versus TEE data for left atrial appendage occlusion (PRO3DLAAO)

BACKGROUND: Preliminary data comparing 3-dimensional computed tomography (3D-CT) to transesophageal echocardiography (TEE) for left atrial appendage occlusion (LAAO) indicates that 3D-CT provides more accurate measurements and improves case planning. Therefore, we conducted a pilot study comparing 3D-CT to TEE in occluder selection accuracy and procedural efficiency. METHODS: From May 2016 to February 2017, 24 patients were prospectively randomized to undergo LAAO using either TEE or 3D-CT. The primary endpoint was device accuracy while the secondary endpoints included # devices per case, # guide catheters used per case, # fluoroscopy angles used, procedure time, fluoroscopy time, radiation dose, and major adverse events (stroke, MI, device embolization, perforation, death). RESULTS: Procedure success was 100% and 92% for the 3D-CT and 2D-TEE cohorts respectively. Accuracy for 1st device selection 92% and 27% (P = .01) for 3D-CT and 2D-TEE respectively but with intra-procedural upsizing in the 2D-TEE cohort, the 2D-TEE cohort accuracy increased to 64% while the 3D-CT groups 92% was accurate (P = .33). Case planning using 3D-CT was significantly more efficient with respect to device utilization (CT 1.33 ± 0.7 vs. 2D-TEE 2.5 ± 1.2 P = .01), guide catheters (CT 1 vs. 2D-TEE 1.7 ± 0.8 P = .01) and procedure time (3D-CT 55 ± 17 min vs. 2D-TEE 73 ± 24 min P \u3c .05). One major adverse event, a stroke occurred in the 2D-TEE group. CONCLUSION: In this single-center pilot study, CT guided LAAO case planning was associated with improved device selection accuracy and procedural efficiency. This study data supports the notion that comprehensive 3D assessment significantly simplifies LAAO, minimizing the time and number of steps needed

Design of Movable Weirs and Storm Surge Barriers

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