Author: Donald G. Godfrey Publisher: Routledge ISBN: 1135442266 Category : Performing Arts Languages : en Pages : 373
Book Description
For more than half a century, broadcast recordings have reflected an important aspect of our culture and history. An increasing number of archivists and private collectors have restored and exchanged radio and television materials. However, despite the awareness of these primary resource materials, there is still some reluctance to utilize this aural and visual history resource. A part of this reluctance is due to the fact that little is known about the existence of many collections throughout the nation. This volume provides a comprehensive directory of electronic media archives in the United States and Canada. It describes each collection, focusing on its speciality, providing the serious researcher with ready access information to these electronic media program resources. Focusing on both private and institutional collections, it is organized by state and city with indexes to provide the scholar with subject and location of specific topics of interest.
Author: Martin J. Kropff Publisher: Int. Rice Res. Inst. ISBN: 0851987451 Category : Science Languages : en Pages : 277
Book Description
General introduction; Empirical models for crop-weed competition; Eco-physiological models for crop-weed competition; Mechanisms of competition for light; Mechanisms of competition for water; Mechanisms of competition for nitrogen; Eco-physiological characterization of the species; Understanding crop-weed interaction in field situation; The impact of environmental and genetic factors; Practical applications.
Author: Nathan George Publisher: Packt Publishing Ltd ISBN: 1801076650 Category : Computers Languages : en Pages : 621
Book Description
Learn to effectively manage data and execute data science projects from start to finish using Python Key FeaturesUnderstand and utilize data science tools in Python, such as specialized machine learning algorithms and statistical modelingBuild a strong data science foundation with the best data science tools available in PythonAdd value to yourself, your organization, and society by extracting actionable insights from raw dataBook Description Practical Data Science with Python teaches you core data science concepts, with real-world and realistic examples, and strengthens your grip on the basic as well as advanced principles of data preparation and storage, statistics, probability theory, machine learning, and Python programming, helping you build a solid foundation to gain proficiency in data science. The book starts with an overview of basic Python skills and then introduces foundational data science techniques, followed by a thorough explanation of the Python code needed to execute the techniques. You'll understand the code by working through the examples. The code has been broken down into small chunks (a few lines or a function at a time) to enable thorough discussion. As you progress, you will learn how to perform data analysis while exploring the functionalities of key data science Python packages, including pandas, SciPy, and scikit-learn. Finally, the book covers ethics and privacy concerns in data science and suggests resources for improving data science skills, as well as ways to stay up to date on new data science developments. By the end of the book, you should be able to comfortably use Python for basic data science projects and should have the skills to execute the data science process on any data source. What you will learnUse Python data science packages effectivelyClean and prepare data for data science work, including feature engineering and feature selectionData modeling, including classic statistical models (such as t-tests), and essential machine learning algorithms, such as random forests and boosted modelsEvaluate model performanceCompare and understand different machine learning methodsInteract with Excel spreadsheets through PythonCreate automated data science reports through PythonGet to grips with text analytics techniquesWho this book is for The book is intended for beginners, including students starting or about to start a data science, analytics, or related program (e.g. Bachelor’s, Master’s, bootcamp, online courses), recent college graduates who want to learn new skills to set them apart in the job market, professionals who want to learn hands-on data science techniques in Python, and those who want to shift their career to data science. The book requires basic familiarity with Python. A "getting started with Python" section has been included to get complete novices up to speed.
Author: United States. Office of Labor-Management Policy Development. Division of Research and Analysis Publisher: ISBN: Category : Disclosure of information Languages : en Pages : 168
Book Description
Report on the conduct of trade union elections in the USA and the rights of union membership within the electoral system - comprises case studies of violations which occurred at the national level and local level from 1965 to 1970. References and statistical tables.
Author: Donald G. Godfrey
Author: Martin J. Kropff
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Author: Nathan George
Author: United States. Bureau of Labor Statistics
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Author: United States. National Bureau of Standards
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Author: United States. Office of Labor-Management Policy Development. Division of Research and Analysis
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