310,934 research outputs found
Julia Christensen, ABC Radio, interviews Kon Vatskalis, Minister for Child Protection
No full textJulia Christensen, ABC Radio, interviews Kon Vatskalis, Minister for Child Protection, on the mandatory reporting of child abuse. They discuss a report on a young child who was found dead some months after medical staff had told Children's Services that this child could be at risk whilst living in his present environment. Duration 8 min. 22 sec
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Tissue engineering for total meniscal substitution : Animal study in sheep model
No full textObjective: The aim of the study was to investigate the use of a novel hyaluronic acid/polycaprolactone material for meniscal tissue engineering and to evaluate the tissue regeneration after the augmentation of the implant with expanded autologous chondrocytes. Two different surgical implantation techniques in a sheep model were evaluated. Methods: Twenty-four skeletally mature sheep were treated with total medial meniscus replacements, while two meniscectomies served as empty controls. The animals were divided into two groups: cell-free scaffold and scaffold seeded with autologous chondrocytes. Two different surgical techniques were compared: in 12 animals, the implant was sutured to the capsule and to the meniscal ligament; in the other 12 animals, also a transtibial fixation of the horns was used. The animals were euthanized after 4 months. The specimens were assessed by gross inspection and histology. Results: All implants showed excellent capsular ingrowth at the periphery. Macroscopically, no difference was observed between cell-seeded and cell-free groups. Better implant appearance and integrity was observed in the group without transosseous horns fixation. Using the latter implantation technique, lower joint degeneration was observed in the cell-seeded group with respect to cell-free implants. The histological analysis indicated cellular infiltration and vascularization throughout the implanted constructs. Cartilaginous tissue formation was significantly more frequent in the cell-seeded constructs. Conclusion: The current study supports the potential of a novel HYAFF/polycaprolactone scaffold for total meniscal substitution. Seeding of the scaffolds with autologous chondrocytes provides some benefit in the extent of fibrocartilaginous tissue repair
Kon Vatskalis
No full textMade available by the Northern Territory Library via the Publications (Legal Deposit) Act 2004 (NT).This publication contains may contain links to external sites. These external sites may no longer be active.Last issue for Kon Vatskalis, retired as Member for Casuarina late 201
Reply to the letter by Dhillon and colleagues
No full textIl nostro studio evidenzia come il trattamento PRP per il trattamento delle artrosi iniziali abbia la potenzialità di migliorare contemporaneamente la funzionalità dell’articolazione e la qualità della vita del paziente con efficacia a breve termine, specialmente nei pazienti giovani con lesioni degenerative della cartilagine. La contestazione sulla nostra procedure di conservazione del PRP, secondo la letteratura non trova riscontro nei risultati clinici. Al contrario la procedura proposta come alternativa sembra presentare alcuni rischi legati alla sua tossicità. Altra criticità è relativa all’utilizzo come score primario IKDC score anziché WOMAC score. Essendo Il WOMAC score più indicato per la valutazione dei quadri artrosici e volendo nel nostro studio valutare l’effetto del PRP in particolare nelle lesioni degenerative della cartilagine, la scelta necessariamente è caduta sull’IKDC score. Infatti l’IKDC score rappresenta il sistema di valutazione approvato dall’ICRS (International Cartilage Repair Society)
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