Hair Traits
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Hair Traits
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Author : Buffy Silverman
language : en
Publisher: Lerner Publications ™
Release Date : 2017-08-01
Hair Traits written by Buffy Silverman and has been published by Lerner Publications ™ this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-01 with Juvenile Nonfiction categories.
What color is your hair? Human hair color ranges from white and light blond to black. Red is the least common hair color. What determines the color and texture of your hair? Read this book to find out about how your genes affect your physical features.
Traits And Attributes
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Author : Natalie Hyde
language : en
Publisher: Crabtree Publishing Company
Release Date : 2009-08
Traits And Attributes written by Natalie Hyde and has been published by Crabtree Publishing Company this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-08 with Juvenile Nonfiction categories.
Helps children understand genetic traits and how they are passed from parent to offspring, explaining genes, chromosomes, and DNA.
Variation In Human Hair Morphology And Microstructure
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Author : Sandra Koch
language : en
Publisher:
Release Date : 2018
Variation In Human Hair Morphology And Microstructure written by Sandra Koch and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
Human hair varies considerably in form and color within an individual and among groups. I examined diversity within human hair, and conducted tests to determine the nature and pattern of differences in the size and shape of hair and the density and distribution of pigment granules (melanosomes). Differences in hair form and cuticle thickness are apparent between broadly defined geographic ancestry groups, but these categories do not necessarily reflect our modern, genetically admixed world.Using Transmission Electron Microscopy (TEM), I investigated the degree of cuticle variability within the hairs from individuals, hairs from peoples who shared similar ancestry, and among people with diverse ancestries. Measurable differences were found in cuticle thickness and in the number of cuticle layers among the populations studied. Hairs from people with African ancestry tend to have thinner cuticles with fewer layers making up the cuticle, while those from people of European and East Asian ancestry tend to have thicker cuticles made up of more layers. Samples of hairs from peoples of European and East Asian ancestry are not statistically significant in cuticle thickness and in the number of layers. Testing European and East Asian hairs against African hairs show statistically significant differences in the cuticle thickness and number of layers. Variation exists within and among human populations in hair color, degree of curl, cross-sectional shape, diameter, and length. Analyses of hair dimensions and the number and distribution of pigment particles within a hair cross section revealed variability among diverse populations, and demonstrated that hair traits are not easily separable into distinct categories by ancestry. These findings offer support for eliminating the use of the outdated three-category racial typologies used by many U.S.-trained forensic scientists. I observed general trait patterns that may be useful for future research and that point to the need for additional research on the effects of genetic admixture to better assess ancestry traits in human hair.
Chemical And Physical Behavior Of Human Hair
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Author : Clarence R. Robbins
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-05-26
Chemical And Physical Behavior Of Human Hair written by Clarence R. Robbins and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-05-26 with Medical categories.
Human hair is the subject of a wide range of scientific investigations. Its chemical and physical properties are of importance to the cosmetics industry, forensic scientists, and to biomedical researchers. This updated and enlarged fourth edition continues the tradition of its predecessor as being the definitive monograph on the subject. It now contains new information on various topics including: chemical hair damage, the cause of dandruff, skin and eye irritation, hair straightening, and others. Chemical and Physical Behavior of Human Hair is a teaching guide and reference volume for cosmetic chemists and other scientists in the hair products industry, academic researchers studying hair and hair growth, textile scientists, and forensic specialists.
Root Functional Traits From Fine Root To Community Level Variation
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Author : Iván Prieto
language : en
Publisher: Frontiers Media SA
Release Date : 2023-03-20
Root Functional Traits From Fine Root To Community Level Variation written by Iván Prieto and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-03-20 with Science categories.
Physical Attractiveness And Hair Color
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Author : R. Michael Atkins
language : en
Publisher:
Release Date : 1984
Physical Attractiveness And Hair Color written by R. Michael Atkins and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Interpersonal attraction categories.
Infancy
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Author : Lisa M. Oakes
language : en
Publisher: SAGE Publications
Release Date : 2023-09-08
Infancy written by Lisa M. Oakes and has been published by SAGE Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-09-08 with Psychology categories.
Lisa M. Oakes, Vanessa Lobue, and Marianella Casasola′s Infancy: The Development of the Whole Child unites historically important and cutting-edge theories and research to illustrate the development of the whole child from birth to age three. Topically organized and written in a conversational tone, the text illustrates the interconnected nature of development through links within its bio-psycho-social coverage. Through its inclusive approach, students see individual similarities and differences in development as a function of factors such as culture, language experience, parenting style, and socioeconomic status. Stories from the authors′ own experiences with infants highlight connections between research and parenting, social policy, and everyday contexts, effectively bringing the topics to life for students. Included with this title: LMS Cartridge: Import this title’s instructor resources into your school’s learning management system (LMS) and save time. Don’t use an LMS? You can still access all of the same online resources for this title via the password-protected Instructor Resource Site. Learn more.
The Hair Fibre Proteins Structure And Development
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Author : Jeffrey E. Plowman
language : en
Publisher: Springer
Release Date : 2018-05-24
The Hair Fibre Proteins Structure And Development written by Jeffrey E. Plowman and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-24 with Medical categories.
Hair is a sophisticated bio-based material, whether it is on a human head or part of a mammalian coat. In particular, the role of the proteins in the follicle, integral to hair development, are not well understood. This new book seeks to integrate the latest research in proteomic and morphological studies into a coherent description of fibre development from the follicle to its final mature, keratinized form. To achieve this the book has been divided into three sections. The first describes the keratins, their associated proteins and how they assemble into intermediate filaments in the fibre. The second covers the latest information on the morphological changes that occur from the base of the follicle, through the keratinization process to the mature fibre and the role that proteins play in this. The final section delves into fundamental fibre properties such as crosslinking, thermal and oxidative modifications and how these affect the mature fibre. The editors of this book are internationally recognised for their work in the area of mammalian hair, Jeffrey Plowman for his knowledge of the proteomics of the fibre, Santanu Deb-Choudhury for his work in the area of crosslinking in the fibre and Duane Harland for his understanding of the morphological development of the fibre. Together they have collected material from other international experts: Leopold Eckhart and Florian Ehrlich for their knowledge of the evolution of keratins; Dong Dong Wu and David Irwin for their studies on keratin associated protein evolution; David Parry and Bruce Fraser for their work on keratin and keratin associated protein structure and assembly; John McKinnon for his studies on macrofibril formation; Crisan Popescu for the thermodynamics of keratins; and Jolon Dyer for his oxidative modification studies of keratins. This book provides a comprehensive introduction, and useful reference guide to hair biology and will be of interest to both scientists and technologists.
Forensic Dna Applications
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Author : Dragan Primorac
language : en
Publisher: CRC Press
Release Date : 2023-04-26
Forensic Dna Applications written by Dragan Primorac and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-04-26 with Science categories.
Forensic DNA Applications: An Interdisciplinary Perspective, Second Edition is fully updated to outline the latest advances in forensic DNA testing techniques and applications. It continues to fill the need for a reference book for people working in the field of forensic molecular biology testing and research as well as individuals investigating and adjudicating cases involving DNA evidence, whether they be civil or criminal cases. DNA techniques have greatly impacted obvious traditional forensic areas, but such advances have also positively affected myriad new areas of research and inquiry. It is possible today to think about solving forensic problems that were simply unheard of even a few years ago. As such, the book pulls all relevant research and applied science together into a detailed and comprehensive collection. Part I begins with the history and development of DNA typing and profiling for criminal and civil purposes. It discusses the statistical interpretation of results with case examples, mitochondrial DNA testing, Y single nucleotide polymorphisms (SNPs) and short tandem repeats (STRs), and X SNP and STR testing. It also explores low copy number DNA typing, mixtures, and quality assurance and control. Part II moves on to cover the various uses and applications of analyzing collected physical evidence, victim identification in mass disasters, analyzing animal DNA, forensic botany, and other unique applications. Part III is dedicated to the latest advances and developments in human molecular biology and Part IV looks at policies and laws and ethics governing DNA evidence, and its utilization in various cases and the courts. Forensic DNA Applications, Second Edition covers cutting-edge research and advancements in the field and is the most up-to-date reference available. Edited and contributed to by the world's foremost leaders in the field, it is a must-have reference for established professionals, and an essential resource to legal professionals—lawyers and judges dealing with civil and criminal cases involving DNA technology—as well as students entering the fields of genetics and forensic DNA analysis.
Unusual Traits
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Author : Buffy Silverman
language : en
Publisher: Lerner Publications ™
Release Date : 2017-08-01
Unusual Traits written by Buffy Silverman and has been published by Lerner Publications ™ this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-01 with Juvenile Nonfiction categories.
Can you roll your tongue into a U-shape? Some people can. But other people's tongues stay flat. What determines whether you can roll your tongue?