102,164 research outputs found
Left ventricular mass in a Simmental calf: cavernous haemangioma
No full textDINCEL, Gungor Cagdas/0000-0002-6985-3197; Terzi, Osman Safa/0000-0002-7877-8897; ATMACA, HASAN TARIK/0000-0001-8379-4114
Venetian defence in the Mediterranean: Nicosia’s city walls, Cyprus (1567-1570)
No full textAccording to the developing defence techniques, the Venetian re-designed Nicosia walls in the Xvi cent. to protect the city from the Ottoman attacks. The Italian engineers Francesco Barbaro and Giulio Savorgnan conceived the new fortifications dismantling the older ones and reusing the stones of many other buildings. The plan has a stellar shape with eleven bastions, hendecagonal, so to have the Cathedral of S. Sofia in the middle, as in the ideal city of Renaissance times. The upper half of the wall section slopes like a pyramid, a shape more suitable for the protection from artillery. The walls were built from 1567 to 1570, surrounded by a deep ditch, about 80 mt. wide, supplied with the water of the river Pedeios, deviated from its course across the city. During the IV Ottoman-Venetian war (1570-1573) the city was seized and catpured by the Ottomans. The paper analyses the phases of the Venetian walls, considering the traces of the previous ones, by comparing them with other coeval poligonal forticiations, and with the indications provided by the treatises of architecture of the XVI century
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
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3346: Samuel G. Freedman, author, 2013
No full textPhotograph of author Samuel G. Freedman, at NT Daily Slash meeting in the Mayborn School of Journalism at UNT
Trastuzumab in combination with AT-101 induces cytotoxicity and apoptosis in Her2 positive breast cancer cells
No full textAim: AT-101 is a polyphenolic compound with potent anti-apoptotic effects in various cancers. In this study, the possible synergistic cytotoxic and apoptotic effect of trastuzumab/AT-101 combination was investigated in HER2-positive breast cancer cell lines. Materials & methods: SKBR-3, MDA-MB-453 and MCF-10A cell lines were treated with a trastuzumab/AT-101 combination. Synergistic cytotoxicity and apoptosis effects were shown and then PI3K and Akt protein levels were studied. Result: The trastuzumab/AT-101 combination induced synergistic cytotoxicity and apoptosis in both breast cancer cells but not in MCF-10A cells. Combination treatment induced cytotoxicity via inhibiting PI3K/AKT but not the MAPK/ERK pathway. Conclusion: The trastuzumab/AT-101 combination may be a good candidate for patients with trastuzumab-resistant Her2-positive breast cancer and inhibition of the PI3K/AKT pathway may be one of the underlying mechanisms. © 2019 Gulcan Bulut, Harika Atmaca & Burcak Karaca
The Right to Strike under the United States Constitution: Theory, Practice, and Possible Implications for Canada
No full textAnswering critics of the Canadian Supreme Court's judgment in B.C. Health, the author argues that the Court laid the foundation for a principled and durable doctrine protecting constitutional labour rights, one that goes directly to the heart of the matter — the inequality of workers’ power in the employment relation. In the author’s view, two paths could lead from B.C. Health to the recognition of Charter protec- tion for a right to strike: one that treats the right as an accessory to col- lective bargaining, and one that upholds the right directly on the basis of the Charter values of equality and participation. The author supports the latter approach, contending that constitutional rights should be defined in relation to fundamental values, in a way that is not contingent on time-bound or fact-sensitive assessments about the role of strikes within a particular collective bargaining regime. Although a Charter right to strike may involve the courts in difficult choices about when to defer to legislative policy decisions, and courts may lack the institutional capac- ity to deal effectively with labour law issues, the author points out that judges can look to ILO standards for expert guidance. Noting that the U.S. experience in this area might be of considerable use to Canadians, the author concludes by providing an overview of American case law concerning a constitutional right to strike.Peer reviewe
Negative differential resistance observation and a new fitting model for electron drift velocity in GaN-based heterostructures
No full textThe aim of this paper is an investigation of electric field-dependent drift velocity characteristics for Al0.3Ga0.7N/AlN/GaN heterostructures without and with in situ Si3N4 passivation. The nanosecond-pulsed current-voltage ( {I}-{V} ) measurements were performed using a 20-ns applied pulse. Electron drift velocity depending on the electric field was obtained from the {I}-{V} measurements. These measurements show that a reduction in peak electron velocity from \text {2.01} \times \text {10}^{\text {7}} to \text {1.39} \times \text {10}^{\text {7}} cm/s after in situ Si3N4 passivation. Also, negative differential resistance regime was observed which begins at lower fields with the implementation of in situ Si3N4 passivation. In our samples, the electric field dependence of drift velocity was measured over 400 kV/cm due to smaller sample lengths. Then, a well-known fitting model was fitted to our experimental results. This fitting model was improved in order to provide an adequate description of the field dependence of drift velocity. It gives reasonable agreement with the experimental drift velocity data up to 475 kV/cm of the electric field and could be used in the device simulators.Manuscript received September 3, 2017; revised November 24, 2017 and December 26, 2017; accepted January 15, 2018. Date of publication February 8, 2018; date of current version February 22, 2018. This work was supported in part by the International Bilateral Research Project between RFBR and TUBITAK under Project 113F364, in part by the Projects DPT-HAMIT, DPT-FOTON, NATO-SET-193, and TUBITAK through the Nanotechnology Research Center, Bilkent University, Turkey under Project 113E331, Project 109A015, and Project 109E301, in part by the Distinguished Young Scientist Award of Turkish Academy of Sciences (TUBA-GEBIP 2016), and in part by the Ministry of Education and Science of the Russian Federation with the unique identifier of the project RFMEFI57717X0250. The work of E. Özbay was supported by the Turkish Academy of Sciences. The review of this paper was arranged by Editor K. Kalna. (Corresponding author: Gökhan Atmaca.) G. Atmaca, P. Narin, E. Kutlu, and S. B. Lis¸esivdin are with the Lisesivdin Research Group, Faculty of Science, Department of Physics, Gazi University, 06500 Ankara, Turkey (e-mail: gokhanatmaca@ kuark.org)
G-Rank: Unsupervised Continuous Learn-to-Rank for Edge Devices in a P2P Network
No full textRanking algorithms in traditional search engines are powered by enormous training data sets that are meticulously engineered and curated by a centralized entity. Decentralized peer-to-peer (p2p) networks such as torrenting applications and Web3 protocols deliberately eschew centralized databases and computational architectures when designing services and features. As such, robust search-and-rank algorithms designed for such domains must be engineered specifically for decentralized networks, and must be lightweight enough to operate on consumer-grade personal devices such as a smartphone or laptop computer. We introduce G-Rank, an unsupervised ranking algorithm designed exclusively for decentralized networks. We demonstrate that accurate, relevant ranking results can be achieved in fully decentralized networks without any centralized data aggregation, feature engineering, or model training. Furthermore, we show that such results are obtainable with minimal data preprocessing and computational overhead, and can still return highly relevant results even when a user’s device is disconnected from the network. G-Rank is highly modular in design, is not limited to categorical data, and can be implemented in a variety of domains with minimal modification. The results herein show that unsupervised ranking models designed for decentralized p2p networks are not only viable, but worthy of further research.https://github.com/awrgold/G-RankComputer Scienc
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