125,348 research outputs found
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
Gait Pathway in Subcortical Vascular Dementia and in Alzheimer’s Disease
No full textGait impairment, worse equilibrium scores and falls are associated with leukoaraiosis, as widely recognised [1-6]. In Binswanger’s disease with a severe leukoaraiosis gait disorders are clearly evident while patients with mild periventricular changes may present subclinical forms of gait disorders, as proposed by some authors (see data in [7]).
Gait disorders in the elderly are particularly relevant, since they can influence the loss of functional independence and death [8]. As anticipated, cerebral small vessel disease (both white matter lesions and lacunar infarcts) correlates with gait parameters: stride length and a lower gait velocity [8]. Most importantly, subcortical vascular lesions seem to increase the possibility of falls, even if clear evidences are still lacking [9-11].
Walking difficulties in Alzheimer’s disease are well described [12]: patients show slow and irregular steps, difficulties in turning and avoiding obstacles [13, 14]. These disturbances have been described also in patients free from extrapyramidal, ataxic, paretic signs, and clinically relevant musculoskeletal impairments [12, 14]. Moreover, Alzheimer’s disease patients have a worse balance [12, 14, 15] and a higher risk of falls compared with matched controls [16, 17]. The prevalence of gait abnormalities varies widely across the studies (from 8.7% [18] to over 90% [19]); this can be explained because of different inclusion criteria and/or assessment procedures.
These observations have been confirmed by studies demonstrating that patients with Alzheimer’s disease walk more slowly compared to healthy controls [12] and these gait problems have been interpreted as manifestations of the extrapyramidal deficits (well-known to affect 12–28% of Alzheimer patients), or as side effects of drug treatment (e.g. neuroleptic agents) [20]. Since a overt walking problems and trunk movement alterations can be seen also in absence of extrapyramidal signs, it has been proposed that some Alzheimer’s disease patients may present “frontal gait disorder”, a syndrome coterminous with gait apraxia [21, 15]. The lack of a standardised instrument to assess gait has been implicated as a possible cause for the low frequency of reports on the topic.
Since the walking assessment cannot discriminate between walking disorders caused by gait apraxia and other neurological causes of walking difficulty, there has been the necessity to exclude alternative causes of walking abnormalities in Alzheimer’s disease (overt extrapyramidal impairments or other concurrent neurological diseases); in order to assess gait capacity, a new test has been proposed and a large proportion of the sample (40%) scored below cut off, even if the percentage of severely impaired was smaller. Although the possibility of right–left confusion, working memory deficits, and problems with verbal comprehension was minimised by demonstrating the items, the complexity of some of them might have contributed to inflating the proportion of patients performing poorly. Even though, the presence of associated vascular pathology in a few patients also cannot account for the outcome. Neuroradiological signs of white matter changes were reported in three of the 24 patients (22.5%) in the Della Sala et al.’s study [12], who scored below cut off in the assessment of walking skills.
Therefore, in a well-defined population suffering from subcortical vascular dementia and Alzheimer’s disease (standing from a neurological, clinical, and radiological criteria), we tried to explore gait, balance and equilibrium alterations, and a behavioral complex symptom, such as apathy, even considering precipitant factors, such as concomitant pathologies and consequent therapies. We now present an extension of the work, with a speculation on what we observed for a two-year follow-up
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
Corrosion Resistance and Thermal Conductivity Enhancement of Reduced Graphene Oxide–BaSO(4)–Epoxy Composites
No full textThe results of studies on the corrosion protectiveness and thermal conductivity of reduced graphene oxide–BaSO(4) epoxy composites are reported here. A commercial epoxy resin and reduced graphene oxide (rGO) were blended with a hardening reagent and then mixed with prepared BaSO(4)–epoxy resin (B–epoxy). The reduced graphene oxide–BaSO(4)–epoxy composite (rGO–B–epoxy) paste was used to coat the surfaces of Al 7205 alloy and the corrosion and thermal properties were investigated. A corrosion test in a 3.5 wt% synthetic sea water solution showed that the composite coating containing BaSO(4) had the best corrosion resistance. Moreover, the rGO–B–epoxy composite showed better protection against corrosion than the epoxy alone. The rGO–B–epoxy composite with 5 wt% BaSO(4) had an in-plane coefficient of thermal conductivity of approximately 165.0 W/m K, and the in-plane thermal diffusivity was 71.38 mm(2)/s. In standard thermal conductivity tests, all three samples had values below 40 W/m K. The rGO–B–epoxy composites showed good surface corrosion protection and in-plane thermal conductivity
Pragmatic Case Studies as a Source of Unity in Applied Psychology
No full textTo unify or not to unify applied psychology: that is the question. In this article we review pendulum swings in the historical efforts to answer this question—from a comprehensive, positivist, “top-down,” deductive yes between the 1930s and the early 60s, to a postmodern no since then. A rationale and proposal for a limited, “bottom-up,” inductive yes in applied psychology is then presented, employing a case-based paradigm that integrates both positivist and postmodern themes and components. This paradigm is labeled “pragmatic psychology” and, its specific use of case studies, the “Pragmatic Case Study Method” (“PCS Method”). We call for the creation of peer-reviewed journal-databases of pragmatic case studies as a foundational source of unifying applied knowledge in our discipline. As one example, the potential of the PCS Method for unifying different angles of theoretical regard is illustrated in an area of applied psychology, psychotherapy, via the case of Mrs. B. The article then turns to the broader historical and epistemological arguments for the unifying nature of the PCS Method in both applied and basic psychology.Peer reviewe
Identification of peripheral blood involvement in dogs with large B-cell lymphoma: comparison of different methods
No full textStage V lymphoma is defined as the presence of neoplastic cells in peripheral blood (PB), bone marrow, or any other non-lymphoid tissue. Still, official guidelines do not specify which technique should be used to assess infiltration.
We assessed the agreement among flow cytometry (FC), blood smear evaluation, and ADVIA120 (LUC and BASO) to quantify PB infiltration in 100 dogs with large B-cell lymphoma (LBCL).
Significant errors were found for all methods compared to FC. A moderate agreement was present between FC and blood smear evaluation, whereas LUC and BASO had excellent specificity but unsatisfactory sensitivity in detecting FC infiltrated PB samples.
The different techniques should not be used alternatively. We support the use of LUC/BASO as a speedy preliminary test to detect infiltrated samples, and the joined use of blood smear evaluation and FC to quantify definitively the infiltration. Our results are valid only within canine LBCL staging workup, once the diagnosis has been confirmed
ANALISIS STRATEGI PUBLIC RELATIONS DALAM MEMPERTAHANKAN CITRA BASO AFUNG MELALUI INSTAGRAM
No full textDalam era digital yang begitu pesat, media sosial memiliki peran yang berpengaruh besar dalam menyebarkan informasi karena dapat menjangkau banyak orang dalam waktu yang singkat. Isu yang muncul kapan pun dapat memiliki dampak negatif pada citra produk atau merek. Sebuah perusahaan harus bersiap menghadapi krisis. Restorant Baso Afung mengalami isu dan krisis terkait postingan influencer terkenal, Jovi Adhiguna, yang mengunggah video dirinya memakan krupuk babai di restoran bakso yang memiliki sertifikasi halal. Baso A Fung adalah brand makanan bakso yang diciptakan oleh Arif Sunggono. Adanya kasus kerupuk babi yang melibatkan influencer Jovi Adhiguna membuat para pelanggan dari baso a fung menuntut adanya kejelasan mengenai video maupun informasi yang beredar. Pada penelitian ini akan membahas tentang strategi yang dilakukan oleh Public Relations perusahaan baso a fung dalam menyelesaikan krisis yang dialami. Penelitian ini menggunakan pendekatan kualitatif dengan menggali informasi lebih dalam mengenai strategi manajemen isu oleh Public Relations Baso A Fung. Metode yang digunakan adalah deskriptif, yang memberi gambaran mengenai situasi dan peristiwa. Hasil dari penelitian ini berisi strategi yang dilakukan Public relations Baso a fung dalam mempertahankan citra perusahaannya yakni: a) Komunikasi krisis yang efektif; b) Monitoring dan Respon cepat; c) Strategi Delivering Promise to Build Trust; dan d) Strategi Publicity Stunt atau PR Stunt
Dr. Edwin Wright Collection: Author Unknown
No full textNotes - The author relates several short stories about his neighbours including Alex McDonell, homesteading and life around Meanook and Athabasca (1 page
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
Edición, traducción y estudio del Kitab al-filaha ar-rumiyya ("Tratado de agricultura griega") de Qustus b. Askuraskinah (Casiano Baso Escolástico)
No full textPrograma de doctorado: Filología Clásica y ÁrabeLa tesis doctoral "Edición, traducción y estudio del Kitab al-filaha ar-rumiyya ("Tratado de agricultura griega") de Qustus b. Askuraskinah (Casiano Baso Escolástico)" tiene como objetivo editar en árabe el tratado agrícola de Casiano Baso Escolástico del s. IV d.C. Su obra, redactada originariamente en griego, se tradujo al pahlevi en el s. VII d.C. y de esta lengua se vertió al árabe. Tanto el original griego como la traducción persa se han perdido, pero conservamos la traducción árabe
- …
