196,207 research outputs found
Shining new light on multifunctional lanthanide single-molecule magnets
No full textSingle-molecule magnets (SMMs) are at the forefront of new technological advances in quantum information processing and spintronics. Despite the recent impressive breakthroughs in extending the magnetic blocking temperatures beyond liquid-nitrogen temperatures, significant challenges await in terms of integrating and addressing such compounds in devices. With this ultimate goal in mind, the design of multifunctional SMMs not only allows to imbue molecules of interest with specific properties that would allow for in situ monitoring of the SMM operation in real time, but can also provide critical insights into our understanding of the magnetic behaviour. In this Review, we highlight how magnetism and luminescence can be harmoniously combined within single molecules to achieve these objectives. The key design principles to attain the simultaneous combination of photoluminescence and slow relaxation of the magnetization are discussed, along with an outlook on how such molecules could be beneficial for emerging next-generation spintronics devices
Lanthanide-based Materials: Exploring Multifunctional Platforms for Opto-Magnetic Applications
No full textDesign of lower limb and spinal column for TAMUK huamanoid
No full textThis project focuses on the design and development of the first version of an interactive humanoid robot at the Texas A&M University Kingsville's Controls and Robotics Laboratories. This being the preliminary stage of development of the TAMUK Humanoid, progress is confined to a set of stages, requiring a prototype at each stage. The major constraints for design are its biomimetic appearance and the self-contained architecture in a smaller than traditional foot print. The target subject is a 4 to 6 year old infant humanoid measuring 1.1m and weighing between 15 to 20 kg with 14 active degrees of freedom (D0F). Design wise, the main goal is to break free of traditional heavier than life humanoids and also to maintain an aesthetically pleasing appearance of an infant. The preliminary stage in development deals with the right upper limb, with 5 DOF; it is less complex than the lower limb, hence the ideal subject for a prototype. The second stage is the complex design of a biomimetic hip and other lower limb extremities using linear actuators and passively actuated feet. Also, a conceptual model of a fully articulated spine was derived, as an alternative spinal column
Introduction. Chapter 1 in: G. Blöschl, M. Sivapalan, T. Wagener, A. Viglione, H. Savenije (Eds.) Runoff Prediction in Ungauged Basins - Synthesis across Processes, Places and Scales
No full textDr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
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
Dr. Glendon Swarthout
No full textHosted by Roger M. Busfield, MSU Assistant Professor of Speech and Theater, Meet the Author is designed to introduce a general audience to a contemporary author and their work through in-depth interviews. This episode features a conversation between Dr. Glendon Swarthout, prolific author and English professor at MSU, and assistant professors Sam S. Baskett and Theodore B. Strandness
Asymmetric Ring Opening in Tetrazine-based Ligand Affording a Tetranuclear Opto-Magnetic Ytterbium Complex
No full textWe report the formation of a tetranuclear lanthanide cluster, [Yb4(bpzch)2(fod)10] (1), which occurs from a serendipitous ring opening of the functionalised tetrazine bridging ligand, bpztz (3,6-dipyrazin-2-yl-1,2,4,5-tetrazine) upon reacting with Yb(fod)3 (fod−=6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octandionate). Compound 1 was structurally elucidated via single-crystal X-ray crystallography and subsequently magnetically and spectroscopically characterised to analyse its magnetisation dynamics and its luminescence behaviour. Computational studies validate the observed MJ energy levels attained by spectroscopy and provides a clearer picture of the slow relaxation of the magnetisation dynamics and relaxation pathways. These studies demonstrate that 1 acts as a single-molecule magnet (SMM) under an applied magnetic field in which the relaxation occurs via a combination of Raman, direct, and quantum tunnelling processes, a behaviour further rationalised analysing the luminescent properties. This marks the first lanthanide-containing molecule that forms by means of an asymmetric tetrazine decomposition
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