104,752 research outputs found
pXRF study of pottery : State of the art and perspectives
No full textInternational audienceAlthough portable/handheld X-ray Fluorescence instruments are available from decades, the number of publications reporting on-site analyses of pottery remain very limited. Most of them present the paste composition and not the (glazed) décor. After a brief review of the published works about the studies of pottery and glass, we will discuss the advantages (on-site analysis and selection of artefacts, higher number of objects, better statistics …) and drawbacks (light elements and some traces not measured, difficulty to determine the analyzed volume, low quantity of informative elements…). We will take examples on three important series previously analyzed, 18th- century stonewares (from Meissen [1], Delft, China, England, France… belonging mainly to Sèvres collection, France), “Iznik” style tiles covering walls of Edirne mosques (Turkey World Unesco Heritage, Fig. 1 [2]) and Chinese and Vietnamese shards excavated from a medieval harbor (Qalhat, Oman Sultanate [3]) and discuss the two possible ways to extract information: i) the blind eyes approach using PCA and cluster variation statistical analysis, and ii) the comparison of particular element ratios or contents related to the raw materials used for the paste and the glaze (alkalis and earth alkalis, iron and titanium, lead, …) and the coloring and opacifying agents (tin, cobalt, copper, arsenic, nickel, manganese, …). Expected further developments will be discussed. [1] G. Simsek, F. Casadio, Ph. Colomban, K. Faber, L. Bellot-Gurlet, G. Zelleke, V. Milande, E. Moinet, Journal of The American Ceramic Society 97 (2014) 2745-2754.[2] G. Simsek, O. Uunsalan, K. Bayraktar, Ph. Colomban, Ceramics International 45 (2019) 595-605.[3] G. Simsek, Ph. Colomban, S. Wong, B. Zhao, A. Rougeulle, N.Q. Liem, Journal of Cultural Heritage 16 (2015) 159-172
pXRF study of pottery : State of the art and perspectives
No full textInternational audienceAlthough portable/handheld X-ray Fluorescence instruments are available from decades, the number of publications reporting on-site analyses of pottery remain very limited. Most of them present the paste composition and not the (glazed) décor. After a brief review of the published works about the studies of pottery and glass, we will discuss the advantages (on-site analysis and selection of artefacts, higher number of objects, better statistics …) and drawbacks (light elements and some traces not measured, difficulty to determine the analyzed volume, low quantity of informative elements…). We will take examples on three important series previously analyzed, 18th- century stonewares (from Meissen [1], Delft, China, England, France… belonging mainly to Sèvres collection, France), “Iznik” style tiles covering walls of Edirne mosques (Turkey World Unesco Heritage, Fig. 1 [2]) and Chinese and Vietnamese shards excavated from a medieval harbor (Qalhat, Oman Sultanate [3]) and discuss the two possible ways to extract information: i) the blind eyes approach using PCA and cluster variation statistical analysis, and ii) the comparison of particular element ratios or contents related to the raw materials used for the paste and the glaze (alkalis and earth alkalis, iron and titanium, lead, …) and the coloring and opacifying agents (tin, cobalt, copper, arsenic, nickel, manganese, …). Expected further developments will be discussed. [1] G. Simsek, F. Casadio, Ph. Colomban, K. Faber, L. Bellot-Gurlet, G. Zelleke, V. Milande, E. Moinet, Journal of The American Ceramic Society 97 (2014) 2745-2754.[2] G. Simsek, O. Uunsalan, K. Bayraktar, Ph. Colomban, Ceramics International 45 (2019) 595-605.[3] G. Simsek, Ph. Colomban, S. Wong, B. Zhao, A. Rougeulle, N.Q. Liem, Journal of Cultural Heritage 16 (2015) 159-172
Breast hamartoma: a case report
No full textBreast hamartoma is an uncommon benign lesion, composed of varying amounts of fatty, fibrous and glandular elements. It can present as a breast mass and therefore additional care needs to be taken to rule it out in the differential diagnosis of breast carcinoma. We report a case of a breast hamartoma treated at the European Institute of Oncology
Investigation of equilibrium, kinetic and thermodynamic of methylene blue adsorption onto dehydrated hazelnut husk carbon
No full textIn this study, adsorption of methylene blue (MB) on dehydrated hazelnut husk carbon(DHHC) was tested in batch adsorption system by investigating several factors including pH, contact time, initial concentration, mass dosage and temperature. MB adsorption was found to be favoured at pH values >= 7.0. The increase in temperature yielded an increase in MB adsorption. The MB adsorption was reached to equilibrium in 8 h. The MB equilibrium data agreed well with Langmuir equation with maximum monolayer capacity of 285.7 mg g(-1). MB adsorption kinetics was described well with the pseudo-second-order kinetic model. The thermodynamic investigations showed a spontaneity and endothermicity of MB adsorption onto dehydrated hazelnut husk. Eventually, DHHC could be utilized as an effective and useful adsorbent for the removal of MB from aqueous solutions
Migraine and Its Treatment from the Medicinal Chemistry Perspective
No full textMigraine is a disease of neurovascular origin that affects the quality of life of more than one billion people and ranks sixth among the most common diseases in the world. Migraine is characterized by a moderate or severe recurrent and throbbing headache, accompanied by nausea, vomiting, and photo-phonophobia. It usually starts in adolescence and is twice as common in women as in men. It is classified as with or without aura and has chronic or acute treatment types according to the frequency of occurrence. In acute treatment, analgesics that relieve pain in the fastest way are preferred, while there are different options in chronic treatment. While non-specific methods were used in the treatment of migraine until the 1950s, triptans, ditans, and CGRP-receptor-dependent therapies (monoclonal antibodies and gepants) started to be used in the clinic more recently. In this Review, we focus on the synthesis, side effects, and pharmacological and pharmacokinetic properties of FDA-approved drugs used in acute and preventive-specific treatment of migraine
Recent Advances in General Inequalities on Pure & Applied Mathematics and Related Areas - An Issue Dedicated to G. V. Milovanović
No full textThis Special Issue originates from The 1st Mediterranean International Conference of Pure & Applied Mathematics and Related Areas (MICOPAM2018) held on 26-29 October 2018 in Antalya, Turkey, and was organized by organized by Prof. Yilmaz Simsek and Prof. Mustafa Alkan from the Department of Mathematics at Akdeniz University, Antalya, Turkey. The conference was dedicated to Prof. Gradimir V. Milovanović on the occasion of his 70th birthday, as is this special issue. In addition to selected contributions presented at the conference, this series includes high-quality papers that outline recent progress in the theory of Inequalities and their applications. Edited by: Allal Guessab and Yilmaz Simse
Bibliographie Hilarion G. Petzold 1958 – 2009 mit Anhang als Einführung
No full textDieses Archiv enthält die Gesamtbibliographie der Werke des Autors nebst einiger Texte „Über H. G. Petzold“ im Schlussteil der Bibliographie sowie einen Anhang mit einer Einführung in die Architektur des Werkes in seinem wissenslogischen Aufbau als Ausarbeitung seines „Tree of Science Modells“ (2007).This archive contains the complete bibliography of the author and some texts about H. G. Petzold, moreover an epilogue with an introduction to the architecture of the works in its epistemological structure and composition and as an elaborations of Petzold’s „Tree of Science Modell (2007).https://www.fpi-publikation.de/polyloge/01-2009-petzold-h-g-gesamtbibliographie-h-g-petzold-1958-2009-updating-november2009/peerReviewedpublishedVersio
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
Emergency room management of acute bronchiolitis: a randomized trial of nebulized epinephrine
No full textSimsek-Kiper PO, Kiper N, Hascelik G, Dolgun A, Yalcin E, Dogru-Ersoz D, Ozcelik U. Emergency room management of acute bronchiolitis: a randomized trial of nebulized epinephrine. Turk J Pediatr 2011; 53: 651-660
- …
