Chapter 45 Hormones and the Endocrine System PowerPoint Lectures for Biology‚ Seventh Edition Lectures by Ching-wei Luo Hormone (from the Greek horman‚ to excite) • Overview: The Body’s Long-Distance Regulators • Hormone definition: a chemical signal secreted into the circulatory system and communicates regulatory messages within the body • Hormones may reach all parts of the body But only certain types of cells (target cells) are equipped to respond Q Two systems act individually
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BACHELOR OF ENGINEERING IN MECHATRONICS Assignment 3 Dynamics Student name: Barry Kearney Supervisor: Jim Duffy Project title: Lab 3 projectiles / Tractive Force date submitted: 16/11/2013 Introduction: Part A This lab was based on projectile motion and it was to prove the theory that was covered in lecture 5 to be correct. When dealing with projectile motion‚ it is the theory that when an object has been fired from its
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Engineering Materials Week 4 7.2 Consider two edge dislocations of opposite sign and having slip planes that are separated by several atomic distances. Briefly describe the defect that results when these two dislocations become aligned with each other. When the two edge dislocations become aligned‚ a planar region of vacancies will exist between the dislocations. 7.12 Consider a metal single crystal oriented such that normal to the slip plane and the slip direction are at angles 60 and 35 with the
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Once it gains motion‚ it will‚ without any further force‚ keep on moving with uniform velocity and zero acceleration only in ideal case where there is no friction force. If friction force was completely removable‚ everything in the universe would then keep on moving without any external force once it was set into motion. But it is a fact that friction can never be completely removed‚ thus the notion of ever uniform velocity is not possible in this real world. Movement in a body is produced by applying
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Chapter 6 Study Guide Fluids‚ Electrolytes‚ and Acid-Base balance Compartmental Distribution of Body Fluids 2/3 of the body’s water is contained in the ICF‚ the remaining 1/3 is in the ECF ICF fluid volume is regulated by proteins and other non-diffusible organic compounds in cells Interstitial fluids (IF) act as a transport vehicle for gasses‚ nutrients‚ wastes‚ and other materials 14%-16% of body weight Reservoir for maintenance of vascular volume; used during hemorrhage
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Analysis Paper: Fluid Volume Deficit “Fluid volume is a term that describes the balancing of input and output of fluid in the body” (Welch 2010). This balance can be affected by many factors: inadequate intake‚ shock‚ vomiting‚ diarrhea‚ or too much output. It can also be caused by third spacing. Fluid volume balance is very important to monitor patients because it can affect every body system and can easily be altered. Fluid volume deficit is more commonly referred to as dehydration. Euvolamia
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little read: ... The cell membrane structure-Fluid mosaic model The cell membrane separates a watery cytoplasm from a watery external environment also known as ECF. The phospholipids are arranged in a double layer (lipid layer) with the hydrophilic heads facing outward (cytoplasm or ECF) and the hydrophilic tails turned in towards each other. The unsaturated fatty acids are not bonded to each other and form a fluid. Fluid Mosaic model. The term "fluid" is used because the phospholipid molecules and
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Biaxial stress & strain Poisson’s ratio σx = E1-v2 (εx + vεy) εx = 1E (σx - vσy) Uniaxial: v = - εyεx σy = E1-v2 (εy + vεx) εy = 1E (σy - vσx) Biaxial: v = E2G - 1 εz = - vE (σx + σy) Triaxial stress & strain
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Basics of Fluid Mechanics Genick Bar–Meir‚ Ph. D. 2729 West Jarvis Ave Chicago‚ IL 60645-1335 email:barmeir at gmail.com Copyright © 2010‚ 2009‚ 2008‚ 2007‚ and 2006 by Genick Bar-Meir See the file copying.fdl or copyright.tex for copying conditions. Version (0.2.4 March 2‚ 2010) ‘We are like dwarfs sitting on the shoulders of giants” from The Metalogicon by John in 1159 CONTENTS Nomenclature GNU Free Documentation License . . . . . . . . . . . . . . . . 1. APPLICABILITY AND DEFINITIONS
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In this investigation three different variables were tested to determine their effect on the force of friction. All throughout the lab it was important to record the data found to identify how much the three variables affected the force of friction. The purpose of the first part of the lab‚ 4.1 What a Drag!‚ was to measure the force required to pull a block over five different surfaces. The sliding surfaces used in the lab were the tabletop‚ waxed paper‚ paper towel‚ fine sandpaper‚ and coarse sandpaper
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