124,648 research outputs found
Il toponimo SnT nella stele IM 4018 del Serapeum di Menfi e la prima testimonianza della Bella-Fondazione (SnT-nfr.t)
No full textSnT-nfr.t, literally “the Beautiful Foundation”, was one of the most important religious center in the VII nome of Lower Egypt. It is attested in several geographic inscriptions of the Ptolemaic and Roman Period. Scholars are aware of a single source that testifies SnT-nfr.t toponym before the Ptolemaic Period: the coffin of Onurisnakht, “priest of Amon-Ra, lord of SnT-nfr.t”, dated to the IV century BC and now preserved in the Kunsthistorisches Museum Wien. The stela Louvre IM 4018 (A) from Serapeum in Memphis, belonging to Pedihoremheb and his brother Horo, is the key to backdate the attestation of the toponym SnT-nfr.t to the VI century BC. Indeed, the stela, dated to the 4th year of the reign of Darius I (518 BC), mentions a toponym SnT and provides a strong link with the god Ha, since Udjahorresenet, the father of Pedihoremheb, is stated to be a priest of Ha. Three other documents support the identification of the lemma SnT as an abbreviated form of SnT-nfr.t and connect it with the VII nome of Lower Egypt: B) three geographical texts (Edfu I 331, 16, papyrus Carlsberg 182, Dendera X, 86, 5) and the gold scarab Louvre E 10697, bearing the title Hm nTr HA aA nb Imnt.t, “priest of Ha, the great, lord of West”, show that the god Ha is the main god in the VII nome; C) a geographic inscription, engraved on the second western
chapel of Osiris at Dendera (Dendera X, 118, 9-10), proves that the toponym SnT-nfr.t is used for the name of a demon of the VII nome of Lower Egypt; D) a geographic inscription, engraved on the chapel of Sokar at Edfu (Edfu I, 194, 2), places the demon’s name as attested in Dendera inscription beside the abbreviation SnT. They clearly refer to the same toponym, SnT-nfr.t/¤nT and they connect it to the Western Harpoon province
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
An Open Source/Real-Time AFM Architecture to Perform Customizable Force Spectroscopy Experiments
No full textAn Open Source/Real-Time AFM Architecture to Perform Customizable Force Spectroscopy Experiment
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
Determination of physical properties of an elastomeric polymer by AFM stretching experiments
No full textPragmatic 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
The in vitro anti-amyloidogenic activity of the mediterranean red seaweed halopithys incurva
No full textNeurodegenerative diseases are generally characterized by the presence of neurotoxic amyloid aggregates underlying progressive neuronal death. Since ancient times, natural compounds have been used as curative agents for human health. Amyloid research is constantly looking for safe natural molecules capable of blocking toxic amyloid aggregates’ formation. From the marine environment, seaweeds are recognized as rich reservoirs of molecules with multiple bioactivities, including the anti-amyloidogenic activity. Here, hydroalcoholic extracts of two seasonal samples of the Mediterranean red seaweed Halophytis incurva (HIEs) were characterized by the HPLC-DAD-MS analysis. The H. incurva anti-amyloidogenic role was explored by incubating both HIEs with hen egg white lysozyme (HEWL), a well-known protein model widely used in amyloid aggregation experiments. The aggregation kinetics and morphological analysis of amyloid aggregates were performed by ThT and AFM analysis, respectively, while their cytotoxicity on SH-SY5Y human neuroblastoma cells was examined by MTT assay. HIEs showed a different efficacy, probably dependent on their metabolic composition, both in inhibiting amyloid fibrillation and in obtaining short and less toxic pre-fibrillary aggregates. Overall, this work sheds light, for the first time, on a Mediterranean red seaweed as a promising renewable resource of bioactive compounds, potentially useful in preventing the formation of toxic amyloid aggregates
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
Optical fibre nanotips fabricated by a dynamic chemical etching for sensing applications
No full textNanoprobe tips are key components in many applications such as scanning probe microscopes, nanoscale imaging, nanofabrication and sensing. This paper describes a dynamic chemical etching method for the fabrication of optical nanoprobes. The tips are produced by mechanically rotating and dipping a silica optical fibre in a chemical etching solution (aqueous hydrofluoric acid) covered with a protection layer. Using different dynamic regimes of the mechanical movements during the chemical etching process, it is possible to vary the cone angle, the shape, and the roughness of the nanoprobes. It is found that the tip profiles are determined by the nonlinear dynamic evolution of the meniscus of the etchant near the fibre. Computational fluid dynamic simulations have been performed, showing that different flow regimes correspond to different shear forces acting on the forming nanotip, in agreement with experimental results. With this method, a high yield of reproducible nanotips can be obtained, thus overcoming the drawbacks of conventional etching techniques. Typical tip features are short taper length (∼200 μm), large cone angle (up to 40°), and small probe tip dimension (less than 30 nm)
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