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This issue of Acta Neurochirururgica presents the latest surgical and experimental approaches to the craniovertebral junction (CVJ). It discusses anterior midline (transoral transnasal), posterior (CVJ craniectomy laminectomy, laminotomy, instrumentation and fusion), posterolateral (far lateral) and anterolateral (extreme lateral) approaches using state-of-the-art supporting tools. It especially highlights open surgery, microsurgical techniques, neuronavigation, the O-arm system, intraoperative MR, neuromonitoring and endoscopy. Endoscopy represents a useful complement to the standard microsurgical approach to the anterior CVJ: it can be used transnasally, transorally and transcervically; an...
Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
This book is divided into four parts. The first part, Preliminaries, begins by introducing the basic theme of the book. It provides an overview of the current status of water resources utilization, the likely scenario of future demands, and advantages and disadvantages of systems techniques. An understanding of how the hydrological data are measured and processed is important before undertaking any analysis. The discussion is extended to emerging techniques, such as Remote Sensing, GIS, Artificial Neural Networks, and Expert Systems. The statistical tools for data analysis including commonly used probability distributions, parameter estimation, regression and correlation, frequency analysis,...
Syllabus : Unit I : Solid State Unit II : Solutions Unit III : Electrochemistry Unit IV : Chemical Kinetics Unit V : Surface Chemistry Unit VI : General Principles and Processes of Isolation of Elements Unit VII : “p”–Block Elements Unit VIII : “d” and “f” Block Elements Unit IX : Coordination Compounds Unit X : Haloalkanes and Haloarenes Unit XI : Alcohols, Phenols and Ethers Unit XII : Aldehydes, Ketones and Carboxylic Acids Unit XIII : Organic Compounds Containing Nitrogen Unit XIV : Biomolecules Unit XV : Polymers Unit XV : Polymers Unit XVI : Chemistry in Everyday Life Content : 1. Solid State 2. Solutions 3. Electro-Chemistry 4. Chemical Kinetics 5. Surface Chemistry 6. General Principles And Processes Of Isolation Of Elements 7. P-Block Elements 8. D-And F-Block Elements 9. Coordination Compounds And Organometallics 10. Haloalkanes And Haloarenes 11. Alcohols, Phenols And Ethers 12. Aldehydes Ketones And Carboxylic Acids 13. Organic Compounds Containing Nitrogen 14. Biomolecules 15. Polymers 16. Chemistry In Everyday Life Appendix : 1. Important Name Reactions And Process 2. Some Important Organic Conversions 3. Some Important Distinctions
What can we learn from spontaneously occurring brain and other physiological signals about an individual’s cognitive and affective state and how can we make use of this information? One line of research that is actively involved with this question is Passive Brain-Computer-Interfaces (BCI). To date most BCIs are aimed at assisting patients for whom brain signals could form an alternative output channel as opposed to more common human output channels, like speech and moving the hands. However, brain signals (possibly in combination with other physiological signals) also form an output channel above and beyond the more usual ones: they can potentially provide continuous, online information a...
Astronomy and Astrophysics Abstracts, which has appeared in semi-annual volumes since 1969, is devoted to the recording, summarizing and indexing of astronomical publications throughout the world. According to a resolution adopted at the 14th General Assembly in 1970 it is prepared under the aus pices of the International Astronomical Union. Astronomy and Astrophysics Abstracts aims to present a comprehensive doc umentation in all fields of astronomy and astrophysics. It is due to the ever lasting increase of the bulk of material that the information content of our regular volumes is growing seriously. Therefore, the need for detailed index informations allowing the performance of retrospect...
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