...AS Biology: OCR Syllabus Module 1.1.1 3.1 AS Unit: Cells, Exchange and Transport Module 1: Cells 1.1.1 Cell Structure Candidates should be able to: (a) state the resolution and magnification that can be achieved by a light microscope, a transmission electron microscope and a scanning electron microscope; Light Microscope Transmission Electron Microscope Scanning Electron Microscope Resolution 0.2 μ (200nm) 0.2nm 0.2nm Magnification ≈ ×1500 / 2000 Over 500 000 250 000 (b) explain the difference between magnification and resolution; Resolution “the ability of an optical system to distinguish between two adjacent objects” Magnification increases the apparent size of an object” Resolving power “the degree of detail that can be seen with a microscope” The resolving power is inversely proportional to the wavelength of the radiation used (i.e. the shorter the wavelength, the greater the resolution). (c) Stains: (d) explain the need for staining samples for use in light microscopy and electron microscopy; - most biological structures are transparent the stain gives a contrast between different structures the stain combines with certain chemicals in the structure - Iodine solution: Starch → blue-black - Eosin solution: cytoplasm → pink - Feulgens agent DNA → dark red / purple - Aceto-orcein agent calculate the linear magnification of an image (HSW3); Page 1 of 8 AS Biology: OCR...
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...Biology guide First assessment 2016 Biology guide First assessment 2016 Diploma Programme Biology guide Published February 2014 Published on behalf of the International Baccalaureate Organization, a not-for-profit educational foundation of 15 Route des Morillons, 1218 Le Grand-Saconnex, Geneva, Switzerland by the International Baccalaureate Organization (UK) Ltd Peterson House, Malthouse Avenue, Cardiff Gate Cardiff, Wales CF23 8GL United Kingdom Website: www.ibo.org © International Baccalaureate Organization 2014 The International Baccalaureate Organization (known as the IB) offers four high-quality and challenging educational programmes for a worldwide community of schools, aiming to create a better, more peaceful world. This publication is one of a range of materials produced to support these programmes. The IB may use a variety of sources in its work and checks information to verify accuracy and authenticity, particularly when using community-based knowledge sources such as Wikipedia. The IB respects the principles of intellectual property and makes strenuous efforts to identify and obtain permission before publication from rights holders of all copyright material used. The IB is grateful for permissions received for material used in this publication and will be pleased to correct any errors or omissions at the earliest opportunity. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted...
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...FunTaskSticks: Aligning the games with course outcomes of Physics and Biology for Pre-science students Irma Ahmad1, Suhaiza Hasan2, Nur Azimah Osman3 1UiTM Negeri Sembilan (Malaysia) 2UiTM Negeri Sembilan (Malaysia) 3UiTM Negeri Sembilan (Malaysia) irma@ns.uitm.edu.my, suhaiza@ns.uitm.edu.my, azimah@ns.uitm.edu.my Abstract The demand for increasing the number of students to pass the pre-diploma programmes has boost up the need for active and motivating learning tools. To rouse the number of passing grades, various programs and series of lectures were conducted for pre-science students at UiTM Negeri Sembilan. However, none of the activities is in form of games. FunTaskSticks is a game that has been modified from the original Pick-Up Sticks and repurposed into instructional lesson as part of learning exercises to support students learning activities in informal educational settings. Therefore, in this study it attempts to investigate how FunTaskSticks could engage the learning process of Physics and Biology and assist them to improve their fundamental grammar of English language by using the terms and terminologies that they have learned in classes and from the game. There were 24 pre-diploma students who participated in this study. The finding revealed that FunTaskSticks is not only educating the students cognitively, but also affectively. Students learn to acknowledge, criticized and praise each other which has increased their motivation level and also their...
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...Proceedings of 2010 IEEE 17th International Conference on Image Processing September 26-29, 2010, Hong Kong K-NEAREST NEIGHBOR SEARCH: FAST GPU-BASED IMPLEMENTATIONS AND APPLICATION TO HIGH-DIMENSIONAL FEATURE MATCHING ´ Vincent Garcia1 , Eric Debreuve2 , Frank Nielsen1,3 , Michel Barlaud2 2 Ecole Polytechnique, Laboratoire d’informatique LIX, 91128 Palaiseau Cedex, France Laboratoire I3S, 2000 route des lucioles, BP 121, 06903 Sophia Antipolis Cedex, France 3 Sony CSL 3-14-13 Higashi Gotanda, Shinagawa-Ku, 141-0022 Tokyo, Japan rithm. Behind its apparent simplicity, this algorithm is highly demanding in terms of computation time. In the last decades, several approaches [4, 5] have been proposed with one common goal: to reduce the computation time. These methods generally seek to reduce the number of distances that have to be computed using, for instance, a pre-arrangement of the data. The direct consequence is a speed-up of the searching process. However, in spite of this improvement, the computation time required by the kNN search still remains the bottleneck of methods based on kNN. General-purpose computing on graphics processing units (GPGPU) is the technique of using a Graphics processing unit (GPU) to perform the computations usually handled by the CPU. The key idea is to use the parallel computing power of the GPU to achieve significant speed-ups. Numerous recent publications use the GPU programming to speed-up their methods [6, 7]. In a previous work [8], we...
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...CHAPTER ONE 1.0 BACKGROUND TO THE STUDY Attitude as a concept is concerned with an individual way of thinking, acting and behaving. It has very serious implications for the learner, the teacher, the immediate social group with which the individual learner relates and the entire school system. Attitudes are formed as a result of some kind of learning experiences. They may also be learned simply by following the example of opinion of parent, teacher or friend., this is mimicry or imitation, which also has a part to play in the teaching and learning situation. In this respect, the learner draws from his teacher’s education to inform his own attitude which may likely affect his earning outcomes. In his observational theory, Bandura (1971) demonstrated that behavior are acquire by watching another (the model, teacher parent, monitor, friend) that performs the behavior. The model display it and the learner observes and tries to imitate it. Teachers are invariably, role models whose behaviours are easily copied by students. What teachers like or dislike, appreciate and how they feel about their learning or studies could have a significant effect on their students. Unfortunately, however, many teacher seldom realize that how they teach how they behave and how they interact with students can be more paramount than what they interact with students can be attitudes directly what they teach. In a nut shell, teachers’ attitudes directly affect students’ attitudes. Teachers attitude...
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...I. INTRODUCTION The role of curriculum in educating the students is a dynamic process that seeks to cope with the changes in our society. Understanding the traditional and emerging concepts of curriculum as well as the factors that affect its development will guide the educators to respond to the needs of the learners. In planning, constructing and evaluating a curriculum, educators and curriculum practitioners may use one or more approaches. The contrasting approaches that are generally used in curriculum development are Technical/Scientific Approach and Non-technical/Non-scientific Approach. In scrutinizing these approaches, the advantages and disadvantages are revealed and the differences they generate in creating a curriculum. According to Bago (2008), information about personal and collective commitments to a particular viewpoint and the values considered important by individuals, school, and society are exposed when examining an approach. Curriculum can also be designed based on a particular context. It solely depends upon the elements namely: contemplation of aims, projected learning outcomes, syllabus, learning and teaching methods, and assessment. There are three common patterns to design a curriculum: through subject – centered, experience – centered, and problem – centered. These are incorporated into the curriculum by looking into its possible effects to the certain elements mentioned above. A design that addresses to the conceptual framework of science education...
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...Online Collaborative Learning for High School Students Using a Blended Approach for the Promotion of Self-Monitoring Skills Sharon Peters A Thesis in The Department of Education Presented in Partial Fulfillment of the Requirements for the Degree of Master of Arts (Educational Technology) at September 2006 © Sharon Peters, 2006 CONCORDIA UNIVERSITY This is to certify that the thesis prepared By: Sharon Peters Entitled: Online collaborative learning for high school students using a blended approach for the promotion of self-monitoring skills and submitted in partial fulfillment of the requirements for the degree of Master Educational Technology complies with the regulations of the University and meets the accepted standards with respect to originality and quality. Signed by the final examining committee: ______________________________________ Chair ______________________________________ Examiner ______________________________________ Examiner ______________________________________ Supervisor Approved by ________________________________________________ Chair of Department or Graduate Program Director ________________________________________________ Dean of Faculty Date ________________________________________________ Abstract Online Collaborative Learning for High School Students Using a Blended Approach for the Promotion of Self-Monitoring Skills Sharon Peters While online learning environments have become common at the...
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...Heaven and Earth.'" Women were to be submissive and obedient to men. Women were not allowed to participate in government or community institutions. A number of women, and some men, spoke out against these conditions in the early 20th century, but to little avail. As a result of government approval, women's rights groups became increasingly active in China: "One of the most striking manifestations of social change and awakening which has accompanied the Revolution in China has been the emergence of a vigorous and active Woman's Movement." Beginning in the 70s and continuing in the 80s, however, many Chinese feminists began arguing that the Communist government had been "consistently willing to treat women's liberation as something to be achieved later, after class inequalities had been taken care of."[9] Some feminists claim that part of the problem is a tendency on the government's part to interpret "equality" as sameness, and then to treat women according to an unexamined standard of male normalcy.[10] Chapter two: definition, development, and categories of feminism 1. Definition of feminism Throughout history, women have always struggled to obtain equality, respect, and the same rights as men. This has been difficult because of patriarchy, an ideology in which men are superior to women and have the right to control women. This ideology has spread...
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...Evolvability of Animal Developmental Systems: Remarks on their Modularity and Robustness Riddhi Benani Department of Life Sciences Imperial College London, UK Supervisor: Prof Armand Leroi June 11, 2012 Abstract The ultimate aim of Evolutionary developmental biology (Evo-Devo) is to answer questions about evolvability of animal developmental systems. Evolvability or the ability to evolve is a ubiquitous property of living organisms. More specifically, it is the capacity to generate heritable, non-lethal phenotypic variation. Biologists have long recognized that evolvability of developmental programs in animals is key to their complex morphological architecture. However there is an increasing need to synthesize known facts about the developmental phenomena into mechanistic descriptions of complex systems. This ambition demands the need to understand the underlying determinants of evolvable developmental systems. I aim to review the dynamics of two systems-level phenomena: modularity and robustness and their evolutionary implications. Despite a plethora of literature, these terms have remained very ambiguous. Modularity reduces interdependence of components and confers robustness. Robustness, which is broadly understood, as the insensitivity of a biological systems functionalities to perturbations is another design principle in itself. Such robustness could enhance the potential for future evolutionary innovations. Both these properties therefore affect evolvability of a lineage...
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...F & H, Fast & Healthy LLC Business Plan for Health Conscious Individual By: Patricia A. Chang (831) 747-4893 pac623@icloud.com HOSP582 Professor Michael Brizek Table of Contents 1.0 Executive Summary………………………………………………………………………3 2.0 Statement of Purpose…………………………………………………………………….4 2.1 Company’s Mission Statement…………………………………………………..4 2.2 Current Situation…………………………………………………………………..4 2.3 Setting Us Apart …………………………………………………………………..5 2.4 Creating Value…………………………………………………………………….6 2.5 Key Success Factors……………………………………………………………..6 3.0 Name and legal structure…………………………………………………………………7 3.1 Description of the business………………………………………………………7 3.2 Management Philosophy…………………………………………………………7 3.3 Menu Concept……………………………………………………………………..7 3.4 Pricing………………………………………………………………………………8 4.0 Market analysis and strategy…………………………………………………………….8 4.1 Marget Segmentation……………………………………………………………10 4.2 Location……………………………………………………………………………12 5.0 Advertising and promotional campaign…………………………………………………13 5.1 Media Marketing…………………………………………………………………..13 6.0 Conclusions and summary……………………………………………………………….13 7.0 Reference/Works cited …………………………………………………………………14 1.0 Executive Summary F & H, or Fast & Healthy, will be a moderately priced health conscious restaurant offering a variety of popular and great quality food and beverage options in a fast casual type atmosphere. This business concept provides a quick and healthy option for easier access...
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...ARTIFICIAL NEURAL NETWORKS METHODOLOGICAL ADVANCES AND BIOMEDICAL APPLICATIONS Edited by Kenji Suzuki Artificial Neural Networks - Methodological Advances and Biomedical Applications Edited by Kenji Suzuki Published by InTech Janeza Trdine 9, 51000 Rijeka, Croatia Copyright © 2011 InTech All chapters are Open Access articles distributed under the Creative Commons Non Commercial Share Alike Attribution 3.0 license, which permits to copy, distribute, transmit, and adapt the work in any medium, so long as the original work is properly cited. After this work has been published by InTech, authors have the right to republish it, in whole or part, in any publication of which they are the author, and to make other personal use of the work. Any republication, referencing or personal use of the work must explicitly identify the original source. Statements and opinions expressed in the chapters are these of the individual contributors and not necessarily those of the editors or publisher. No responsibility is accepted for the accuracy of information contained in the published articles. The publisher assumes no responsibility for any damage or injury to persons or property arising out of the use of any materials, instructions, methods or ideas contained in the book. Publishing Process Manager Ivana Lorkovic Technical Editor Teodora Smiljanic Cover Designer Martina Sirotic Image Copyright Bruce Rolff, 2010. Used under license from Shutterstock.com First published March, 2011 Printed in...
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...A General Review of Tetracyclines Antibiotics Chang Liu Instructor: Prof. Jasson Sello Department of Chemistry, Brown University Providence 02906, RI Tetracyclines are the first broad-spectrum antibiotic to be applied to clinic use. Nevertheless, the increasing incidence of bacterial resistance of tetracyclines led to a series of studies on the development of semisynthetic tetracyclines to circumvent the resistant organisms. In order to better design the structures of tetracycline derivatives, research on the action mode of tetracyclines, mechanisms of resistance, biosynthesis and total synthesis of tetracyclines were also performed. Keywords: Tetracyclines, Structure-activity Relationship, Mode of Action, Mechanisms of Resistance, Biosynthesis, Total Synthesis 1. Introduction Tetracyclines are a group of polyketide broad-spectrum antibiotics that has activity against a variety of gram-positive and gram-negative bacteria, mycoplasmas, chlamydiae and peotozoan parasites [1]. The discovery of tetracycline was in the 1940s. At that time, the problems related to the production of Pennicillin has been solved and pharmaceutical industry and academic institutes started to concentrate their energy on the development of new antibiotics. In 1948, the first member of tetracycline family—chlorotetracyclin, or Aureomycin was discovered as an isolate of Streptomyces Aureofaciens in an antibiotic screening program functioned in Lederle Labs [2]. In 1950, oxytetracycline or Terramycin—second...
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...SYLLABUS Cambridge IGCSE® Combined Science 0653 For examination in June and November 2015 Cambridge Secondary 2 Changes to syllabus for 2015 This syllabus has been updated. Significant changes to the syllabus are indicated by black vertical lines either side of the text. Cambridge International Examinations retains the copyright on all its publications. Registered Centres are permitted to copy material from this booklet for their own internal use. However, we cannot give permission to Centres to photocopy any material that is acknowledged to a third party even for internal use within a Centre. ® IGCSE is the registered trademark of Cambridge International Examinations © Cambridge International Examinations 2013 Contents 1. Introduction .................................................................................................................... 2 1.1 1.2 1.3 1.4 1.5 Why choose Cambridge? Why choose Cambridge IGCSE? Why choose Cambridge IGCSE Combined Science? Cambridge ICE (International Certificate of Education) How can I find out more? 2. Teacher support.............................................................................................................. 5 2.1 Support materials 2.2 Resource lists 2.3 Training 3. Syllabus content at a glance ........................................................................................... 6 4. Assessment at a glance ........................................................
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...are susceptible to several welfare concerns, particularly skeletal malformation and dysfunction, skin and eye lesions, and congestive heart conditions. The breeding stock (broiler-breeders) grow to maturity and beyond but also have welfare issues related to frustration of a high feeding motivation and beak trimming. Broilers are usually grown as mixed-sex flocks in large sheds under intensive conditions, but some breeds can be grown as free-range flocks. Chickens are one of the most common and widespread domestic animals, and with a population of 19 billion in 2011,[2] there are more chickens in the world than any other species of bird. Contents [hide] * 1 Origins and domestication * 2 Modern breeding * 3 General biology * 3.1 Behaviour * 3.2 Physiology * 3.3...
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...Aquatic eutrophication promotes pathogenic infection in amphibians Pieter T. J. Johnson*†, Jonathan M. Chase‡, Katherine L. Dosch§, Richard B. Hartson§, Jackson A. Gross¶, Don J. Larson , Daniel R. Sutherland**††, and Stephen R. Carpenter§ *Department of Ecology and Evolutionary Biology, University of Colorado, Ramaley N122, Boulder, CO 80309-0334; ‡Department of Biology, Washington University, Box 1137, St. Louis, MO 63130; §Center for Limnology, University of Wisconsin, 680 North Park Street, Madison, WI 53706-1492; ¶Southern California Coastal Water Research Project, 3535 Harbor Boulevard, Suite 110, Costa Mesa, CA 92626; Institute of Arctic Biology, University of Alaska, P.O. Box 751403, Fairbanks, AK 99775; and **Department of Biology and River Studies Center, University of Wisconsin, 1725 State Street, La Crosse, WI 54601 Contributed by Stephen R. Carpenter, August 16, 2007 (sent for review June 18, 2007) The widespread emergence of human and wildlife diseases has challenged ecologists to understand how large-scale agents of environmental change affect host–pathogen interactions. Accelerated eutrophication of aquatic ecosystems owing to nitrogen and phosphorus enrichment is a pervasive form of environmental change that has been implicated in the emergence of diseases through direct and indirect pathways. We provide experimental evidence linking eutrophication and disease in a multihost parasite system. The trematode parasite Ribeiroia ondatrae sequentially infects birds...
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