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Read more about Experiences in Biodiversity Research: A Field Course

Experiences in Biodiversity Research: A Field Course

Copyright Year: 2024

Contributor: Gessler

Publisher: Iowa State University Digital Press

License: CC BY-NC

This handbook was developed to support the course, Experiences in Biodiversity Research, which exists to provide early undergraduates with experience in the practice of biodiversity research and demystify the path to careers in this field. Although this course is situated within Iowa State University, guidance for educators is provided throughout the handbook to support those interested in teaching similar courses at other universities.

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Read more about Fundamentals of Cell Biology

Fundamentals of Cell Biology

Copyright Year: 2024

Contributors: Dalton, Young, and Ng-Cornish

Publisher: Oregon State University

License: CC BY-NC

This textbook is focused specifically on the principles and concepts of a foundational Cell Biology course. The book takes a more conceptual approach that highlights how scientists study cells, and how to analyze and interpret experimental results. Rather than focusing primarily on historical experiments that were key to our understanding of cells, the book explores a range of more modern experimental techniques so that students can begin to understand how cells are studied now, in the 21st century. The book includes over 200 newly created illustrations and animations, that were specifically designed for this book, as well as review questions at the end of each chapter, to help students explore and understand the material.

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Read more about Human Reproduction

Human Reproduction

Copyright Year: 2023

Contributor: Bastawros

Publisher: Iowa State University Digital Press

License: CC BY-NC

This open textbook is designed to provide a deep understanding of the biological and biomedical aspects of human reproduction, covering a wide range of topics from basic reproductive biology to clinical applications. The book starts with foundational knowledge and progresses to more advanced topics while also including real-world clinical orientation for practical contexts.

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Read more about Un Análisis Científico del Ruido Ambiental y Laboral en Sectores Urbanos

Un Análisis Científico del Ruido Ambiental y Laboral en Sectores Urbanos

Copyright Year: 2023

Contributors: Astudillo-Martínez, Andrade-Bravo, García-Valdez, and Almenaba-Guerrero

Publisher: Editorial Grupo AEA

License: CC BY-NC-SA

¿Cuál es el nivel de ruido existente Av. Av. 3 de Julio y sus intersecciones entre la calle Ambato y la Y del Indio Colorado de la ciudad de Santo Domingo?, el presente trabajo de investigación tiene como objetivo principal conocer el nivel de ruido existente en este sector de la ciudad, con el fin de determinar el alcance de su afectación y sobre todo sus fuentes, se realizó la evaluación correspondiente de acuerdo con la normativa TULSMA. y Decreto Ejecutivo N° 2393, aplicando la investigación de campo se midió la presencia de ruido ambiental y ocupacional, se requirió del uso de dosímetros calibrados y certificados para obtener información precisa. En esta investigación se estudió estas importantes intersecciones, siendo que, en cuanto a normativa ambiental sobrepasa el nivel tolerable con un diferencial de 10 decibeles en promedio, mientras que en referencia del ruido laboral esta intersección está por debajo de los niveles permisibles con al menos 9 decibeles en promedio, las posibles enfermedades subyacentes más comunes encontradas fueron el estrés, los dolores de cabeza que afectaban principalmente a la población comerciante permanente, y la actividad que mayor emisión de ruido produjo fue el tránsito vehicular, del mismo modo se identificó que el día que se produjo mayor contaminación acústica fue el sábado entre las 11:30 am hasta la 13:00 pm.

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Read more about Introduction to Soil Science

Introduction to Soil Science

Copyright Year: 2023

Contributor: Anderson

Publisher: Iowa State University Digital Press

License: CC BY

This textbook introduces readers to the basics of soil science, including the physical, chemical, and biological properties of soils; soil formation, classification, and global distribution; soil health, soils and humanity, and sustainable land management.

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Read more about Pastos Tropicales de la Amazonia Ecuatoriana Tomo I: Avances científicos sobre sistemas silvopastoriles como estrategia de reconversión de la ganadería

Pastos Tropicales de la Amazonia Ecuatoriana Tomo I: Avances científicos sobre sistemas silvopastoriles como estrategia de reconversión de la ganadería

Copyright Year: 2023

Contributors: González-Marcillo, Guamán-Rivera, Guerrero-Pincay, and Ortiz-Naveda

Publisher: Editorial Grupo AEA

License: CC BY-NC-SA

La rápida expansión de la frontera agrícola como consecuencia desmesurada de la deforestación y cambios antropogénicos a nivel mundial, es un tema de preocupación por la comunidad científica internacional. Además, frente a una lucha contra el cambio climático por efecto de la ganadería, una de las principales estrategias para la mitigación de gases de efecto invernadero, lo constituyen alternativas sostenibles si uso de productos con alta huella de carbono, revalorizando, además, los recursos locales. En el caso de la zona norte de Ecuador, a pesar de los limitados atributos respecto a gradiente de fertilidad de los suelos, la cría de ganado ya sea de leche y/o doble propósito representa uno de los eslabones más fuertes dentro de la economía de las familias. Por lo tanto, es menester investigar alternativas de producción que nos permitan conservar los recursos naturales dada la fragilidad de estos ecosistemas megadiversos. Mediante este libro se plasma que el uso de sistemas ganaderos convencionales, degradan los recursos naturales con mermas significativas de la productividad, así como bajo réditos económicos. En consecuencia, la implementación de sistemas silvopastoriles como alternativa tecnológica de fácil instalación, es sin duda el camino para alcanzar sistemas ganaderos más eficientes, amigables con el medio ambiente, diversificando además los ingresos económicos de la población.

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Read more about Quantitative Methods for Plant Breeding

Quantitative Methods for Plant Breeding

Copyright Year: 2023

Contributors: Suza and Lamkey

Publisher: Iowa State University Digital Press

License: CC BY-NC

This open textbook covers common statistics used in agriculture research, including experimental design in plant breeding and genetics, as well as the analysis of variance, regression, and correlation.

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Read more about Cultivar Development

Cultivar Development

Copyright Year: 2023

Contributors: Suza, Lamkey, and Mumm

Publisher: Iowa State University Digital Press

License: CC BY-NC

This open textbook places emphasis on the design of a process pipeline for continuous development of new improved cultivars as a means to implement the cycle of crop improvement. Essential topics in New Line Development and New Line Evaluation are addressed, such as choice of parents, creation of progeny, and evaluation and selection of progeny. Students learn to design a process pipeline to produce improved cultivars that meet a specific product target which represents stakeholders’ needs.

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Read more about Quantitative Genetics for Plant Breeding

Quantitative Genetics for Plant Breeding

Copyright Year: 2023

Contributors: Suza and Lamkey

Publisher: Iowa State University Digital Press

License: CC BY-NC

This open textbook is intended to expose students to the application of quantitative genetic models to plant breeding populations. Specific topics include conducting and interpreting multi-environment trials, resource allocation using engineering principles, genetic modeling of quantitative traits, simulation modeling, variance, covariance and heritability, prediction, selection, and genetic gain.

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Read more about Organic Chemistry - A Tenth Edition

Organic Chemistry - A Tenth Edition

Copyright Year: 2023

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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