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Creating a circular healthcare economy: Sustainable strategies for a circular healthcare

Contributors: van Straten, Alvino, and Horeman

Publisher: TU Delft Open

License: CC BY

Our world is the only planet, as far as we know, which harbors life. The number of humans on our planet has grown tremendously in recent centuries. In 1800 one billion humans occupied our earth; on 15 November 2022, this number reached 8 billion.

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Scholarly Communication Librarianship and Open Knowledge

Contributors: Bonn, Bolick, and Cross

Publisher: Association of College and Research Libraries

License: CC BY-NC

The intersection of scholarly communication librarianship and open education offers a unique opportunity to expand knowledge of scholarly communication topics in both education and practice. Open resources can address the gap in teaching timely and critical scholarly communication topics—copyright in teaching and research environments, academic publishing, emerging modes of scholarship, impact measurement—while increasing access to resources and equitable participation in education and scholarly communication.

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An Animated Introduction to Digital Logic Design

Contributor: Carpinelli

Publisher: NJIT Library

License: CC BY-NC-SA

This book is designed for use in an introductory course on digital logic design, typically offered in computer engineering, electrical engineering, computer science, and other related programs. Such a course is usually offered at the sophomore level. This book makes extensive use of animation to illustrate the flow of data within a digital system and to step through some of the procedures used to design and optimize digital circuits.

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Organic Chemistry - A Tenth Edition

Contributor: McMurry

Publisher: OpenStax

License: CC BY-NC-SA

John McMurry's Organic Chemistry is renowned as the most clearly written book available for organic chemistry. In John McMurry's words, "I wrote this book because I love writing. I get great pleasure and satisfaction from taking a complicated subject, turning it around until I see it clearly from a new angle, and then explaining it in simple words." In Organic Chemistry: A Tenth Edition from OpenStax, McMurry continues this tradition while updating scientific discoveries, highlighting new applications, scrutinizing every piece of art, and providing example problems to assist students. Organic Chemistry: A Tenth Edition continues to meet the scope and sequence of a two-semester organic chemistry course that follows a functional group approach. A highlighted list of changes along with a detailed table of contents and ancillary descriptions can be found on the Instructor and Student resources sections of this page. John McMurry decided to publish Organic Chemistry: A Tenth Edition under an open license as a tribute to his son, Peter McMurry, who passed away from cystic fibrosis in December 2019. Please click here to learn more about Peter's legacy and to support the fight against cystic fibrosis.

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Structured Electronics Design: A Conceptual Approach to Amplifier Design - 3rd ed.

Contributor: Montagne

Publisher: TU Delft Open

License: CC BY

Many people consider analog electronic circuit design complex. This is because designers can achieve the desired performance of a circuit in many ways. Together, theoretical concepts, circuit topologies, electronic devices, their operating conditions, and the system's physical construction constitute an enormous design space in which it is easy to get lost. For this reason, analog electronics often is regarded as an art rather than a solid discipline.

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Classical Numerical Methods in Scientific Computing

Contributors: van Kan, Segal, and Vermolen

Publisher: TU Delft Open

License: CC BY

Partial differential equations are paramount in mathematical modelling with applications in engineering and science. The book starts with a crash course on partial differential equations in order to familiarize the reader with fundamental properties such as existence, uniqueness and possibly existing maximum principles. The main topic of the book entails the description of classical numerical methods that are used to approximate the solution of partial differential equations. The focus is on discretization methods such as the finite difference, finite volume and finite element method. The manuscript also makes a short excursion to the solution of large sets of (non)linear algebraic equations that result after application of discretization method to partial differential equations. The book treats the construction of such discretization methods, as well as some error analysis, where it is noted that the error analysis for the finite element method is merely descriptive, rather than rigorous from a mathematical point of view. The last chapters focus on time integration issues for classical time-dependent partial differential equations. After reading the book, the reader should be able to derive finite element methods, to implement the methods and to judge whether the obtained approximations are consistent with the solution to the partial differential equations. The reader will also obtain these skills for the other classical discretization methods. Acquiring such fundamental knowledge will allow the reader to continue studying more advanced methods like meshfree methods, discontinuous Galerkin methods and spectral methods for the approximation of solutions to partial differential equations.

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Numerical Methods in Scientific Computing

Contributors: van Kan, Segal, and Vermolen

Publisher: TU Delft Open

License: CC BY

This is a book about numerically solving partial differential equations occurring in technical and physical contexts and the authors have set themselves a more ambitious target than to just talk about the numerics. Their aim is to show the place of numerical solutions in the general modeling process and this must inevitably lead to considerations about modeling itself. Partial differential equations usually are a consequence of applying first principles to a technical or physical problem at hand. That means, that most of the time the physics also have to be taken into account especially for validation of the numerical solution obtained. This book aims especially at engineers and scientists who have ’real world’ problems. It will concern itself less with pesky mathematical detail. For the interested reader though, we have included sections on mathematical theory to provide the necessary mathematical background. Since this treatment had to be on the superficial side we have provided further reference to the literature where necessary.

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Essential Mechanics - Statics and Strength of Materials with MATLAB and Octave

Contributor: Venkataraman

Publisher: RIT Scholar Works

License: CC BY

Essential Mechanics - Statics and Strength of Materials with MATLAB and Octave combines two core engineering science courses - “Statics” and “Strength of Materials” - in mechanical, civil, and aerospace engineering. It weaves together various essential topics from Statics and Strength of Materials to allow discussing structural design from the very beginning. The traditional content of these courses are reordered to make it convenient to cover rigid body equilibrium and extend it to deformable body mechanics.The e-book covers the most useful topics from both courses with computational support through MATLAB/Octave. The traditional approach for engineering content is emphasized and is rigorously supported through graphics and analysis. Prior knowledge of MATLAB is not necessary. Instructions for its use in context is provided and explained. It takes advantage of the numerical, symbolic, and graphical capability of MATLAB for effective problem solving. This computational ability provides a natural procedure for What if? exploration that is important for design. The book also emphasizes graphics to understand, learn, and explore design. The idea for this book, the organization, and the flow of content is original and new. The integration of computation, and the marriage of analytical and computational skills is a new valuable experience provided by this e-book. Most importantly the book is very interactive with respect to the code as it appears along with the analysis.

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Ansiedad en la era COVID-19: Estado, Rasgo y Resiliencia

Contributors: Quispe-Rojas, Pacovilca Alejo, Zea-Montesinos, Ureta-Jurado, Camposano-Córdova, Jauregui-Sueldo, and Sánchez-Ramos

Publisher: Editorial Grupo AEA

License: CC BY-NC-SA

Esta investigación analiza los niveles de ansiedad-rasgo y ansiedad-estado, modificando una ansiedad-estado como un estado emocional inmediato, evolucionando en el tiempo. Mientras que la ansiedad rasgo se refiere a diferencias individuales relativamente estables en la ansiedad. Tuvo como objetivo determinar niveles de ansiedad estado - rasgo en tiempos de pandemia Covid-19 en trabajadores de Red de Salud Angaraes - Huancavelica, 2021. Metodología: investigación básica, nivel descriptivo, método analítico sintético, diseño no experimental, transaccional, descriptivo, técnica utilizada, encuesta, se utilizó Inventario Ansiedad Rasgo Estado (IDARE), se tuvo muestra de 110 trabajadores. Resultados: Concerniente a niveles de ansiedad estado, se evidencia nivel bajo 7,27%, nivel medio 41,82% y 50,91% nivel alto. Respecto a ansiedad rasgo, 6.36%, nivel bajo, 40,91 % nivel medio y el 52,73% nivel alto. Respecto al género para ansiedad estado, para femeninos 2.73% nivel bajo, 20.00% nivel medio y 30.91% nivel alto; para masculinos, 4,55% nivel bajo, 21,82% nivel medio y 20,00% nivel alto. De acuerdo con el género, ansiedad rasgo, femeninos presentan 1,82% nivel bajo, 20.00% nivel medio y 31,82% nivel alto. Género masculino presentan 4,55% nivel bajo, nivel medio 20,91% y 20,91% nivel alto. Respecto a edad, trabajadores de 21 a 30 años presentan ansiedad estado en nivel bajo (2,7%), 22,7% nivel medio, y 9,1% nivel alto; de 31 a 40 años 2,7% nivel bajo, nivel medio 13,6%, y 34,5% nivel alto. Conclusión: Los trabajadores de la Red de Salud Angaraes, presentan nivel alto de ansiedad estado 50,91%, respecto a ansiedad rasgo, presentan un nivel alto 52,73%.

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Enfermedades Respiratorias del Siglo XXI

Contributors: Vallejo-López, Ramírez-Amaya, Kou-Guzmán, Valdez-Aguagallo, and Ramírez- Morán

Publisher: Editorial Grupo AEA

License: CC BY-NC-SA

En el esquema actual, las Instituciones de Educación Superior, tienen la gran responsabilidad de apoyar en el crecimiento académico y orientar de forma permanente en el proceso de enseñanza- aprendizaje, a los integrantes de la comunidad universitaria, con el fin de aportar para un mejor desempeño de los aspirantes a profesionales, que asisten a sus aulas.

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