177,012 research outputs found
LUDLOFF'S ANTEROMEDIAL APPROACH IN DISORDERS OTHER THAN CONGENITAL HIP DISLOCATION.
No full textWe report results obtained using Ludloff’s antero-medial approach in 17 patients affected by disorders other than congenital dislocation of the hip. These disorders were all localised on the antero-medial aspect of the hip joint and the proximal part of the femur (6 heterotopic ossifications, 3 osteoid osteomas, 2 osteochondromas, 1 aspecific coxofemoral synovitis, 1 chronic epiphysiolysis of the hip, 3 fractures of the femoral head, and 1 malignant fibrous histiocytoma). The treated group comprised 10 males and 7 females with a mean age of 33 years (range 11- 72 years). The antero-medial approach allowed for complete or almost complete removal of the pathological masses, withdrawal of synovial tissue for biopsy purposes, the reduction and fixation of the femoral head fractures and even a corrective femoral neck osteotomy. The suitability of this skeletal disorders has been confirmed by clinical and radiographic controls carried out after a mean period of 7 years (range 2-10 years)
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Vascular leiomyoma of the limbs
No full textAfter reporting the most significant data in the literature, the authors present 5 cases of vascular leiomyoma of the limbs. (1 in the upper limb, 4 in the lower limb) in subjects of both sexes. In all of the patients, diagnosid was only possible thanks to histological examination. In none of the cases was there recurrence of neoplasm after surgical exeresi
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Renewable Energy Communities in Rural Areas: A Hybrid GIS-MCDM Approach for Agrivoltaic Systems Site Selection
No full textGiven the environmental challenges, developing efficient methodologies for renewable energy
systems is essential. Renewable Energy Communities (RECs) promote collective participation in photovoltaic
systems, optimising self-consumption and reducing grid dependence. Agrivoltaics combine solar energy
production with agricultural activity on the same land, improving land use efficiency and supporting energy and
food production. This study uses Geographic Information Systems (GIS) and Multi-Criteria Decision Making
(MCDM) techniques to create a strategic framework for selecting agrivoltaics sites. The methodology integrates
data layers, including topography, infrastructure, and environmental factors. Criteria are weighted using
subjective (Best-Worst Method) and objective (Entropy Method) approaches, and the TOPSIS method ranks
sites by suitability. An ABC analysis categorises these sites into high, moderate, and low suitability based on
TOPSIS scores. The case study demonstrates the approach's effectiveness, with significant land areas identified
as highly suitable for agrivoltaic development due to factors like flat terrain, proximity to infrastructure, and
regulatory compliance. This work contributes to the strategic sizing of agrivoltaics, facilitating novel REC
initiatives that connect rural and urban areas
- …
