There Can Be No Doubt That Use of Control Observation, Either Implicit Or Explicit, Is Essential in Sound Experimental Work
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Voluntarily Cooperation and the Celestial Twinning Bond
Celestial Twins Voluntarily Cooperation and the Celestial Twinning Bond The Children’s Saviors: Emil Behring and Paul Ehrlich The Sign: Pisces Keyword: I believe Paul Ehrlich Emil Behring lthough today there is no precise definition of “twinning bond,” nobody denies its existence. This strong emotional or even telepathic bond is described in Aresearch of identical twins reared apart. The relationship between such twins is usually much more intense than that between unrelated people. They may share a closeness that would be hard to match in most other relationships, or they may compete with each other in a struggle to be first. Goering and Rosenberg seemed to belong to the latter category, their instinctive wish to be first dictated to them the desire to get rid of each other, yet even so, in the Nuremberg trials they did not blame each other. Was it just by chance that a kind of celestial twinning bond was observed in the previous stories, or is there a special system of relationships characteristic of celestial twins? Are celestial twins compelled to be in constant competition or do their joined efforts release unusually strong powers as are ascribed by mythology to some biological twins? Some of the answers to these intriguing questions I found in the comparative life stories of the Nobel Prize winners in Medicine, Emil von Behring and Paul Ehrlich. These celestial twins were, like Halem and Stauffenberg, born in Pisces. Though from birth separated by geography, religion and genes, they both found their life mission in Berlin, where both worked at the Institute of Hygiene. -
A Gentle Introduction
01-Coolidge-4857.qxd 1/2/2006 5:10 PM Page 1 1 A Gentle Introduction Chapter 1 Goals • Understand the general purposes of statistics • Understand the various roles of a statistician • Learn the differences and similarities between descriptive and inferential statistics • Understand how the discipline of statistics allows the creation of principled arguments • Learn eight essential questions of any survey or study • Understand the differences between experimental control and statistical control • Develop an appreciation for good and bad experimental designs • Learn four common types of measurement scales • Learn to recognize and use common statistical symbols he words DON’T PANIC appear on the cover of the book A T Hitchhiker’s Guide to the Galaxy. Perhaps it may be appropriate for some of you to invoke these words as you embark on a course in statistics. However, be assured that this course and materials are prepared with a dif- ferent philosophy in mind, which is that statistics should help you under- stand the world around you and help you make better informed decisions. Unfortunately, statistics may be legendary for driving sane people mad or, less dramatically, causing undue anxiety in the hearts of countless college students. However, statistics is simply the science of the organization and conceptual understanding of groups of numbers. By converting our world to numbers, statistics helps us to understand our world in a quick and efficient 1 01-Coolidge-4857.qxd 1/2/2006 5:10 PM Page 2 2 STATISTICS: A GENTLE INTRODUCTION way. It also helps us to make conceptual sense so that we might be able to communicate this information about our world to others. -
Microbe Hunters Revisited Yale University School of Medicine, New Haven, Connecticut, USA
INTERNATL MICROBIOL (1998) 1: 65-68 65 © Springer-Verlag Ibérica 1998 PERSPECTIVES William C. Summers Microbe Hunters revisited Yale University School of Medicine, New Haven, Connecticut, USA Correspondence to: William C. Summers. Yale University School of Medicine. 333 Cedar St. New Haven, CT 06520-8040. USA. Tel.: +1-203-785 2986. Fax: +1-203-785 6309. E-mail: [email protected] It was the mid-1950s and I was a teenager when I first Indeed, Microbe Hunters is a book about success: tales of read Microbe Hunters by Paul Henry De Kruif (Zealand, MI, brilliant research, incisive investigations, and heroic 1890–Holland, MI, 1971). It was the right time and the right personalities. Yet it is far from “history-objectively written.” age; I was fascinated. Here were heros enough to satisfy any The formula that De Kruif hit upon in Microbe Hunters served bookish young man interested in the natural world. Microbe him well: between 1928 and 1957 he wrote eleven more books Hunters was a book that inspired a generation or more of on medical and scientific topics, all with the same “exciting budding young microbiologists [4]. Not only that, however. narrative” and sense of drama. Some of these books were best- It established a metaphor and a genre of science writing that sellers and selected by the popular Book-of-the-Month Club. has often been imitated. None, however, matched the popularity and appeal of Microbe Microbe Hunters is a series of 12 stories that describe major Hunters. events in the history of microbiology, from microscopic De Kruif’s stories are full-scale dramatizations, complete observations of animalcules (literally “little animals”) by with fictional dialog of the historical subjects, and first person Leeuwenhoek (“First of the Microbe Hunters”) to Paul Ehrlich’s interjections of the voice of the narrator, De Kruif. -
Statistics Tutorial
Published on Explorable.com (https://explorable.com) Home > Statistics Statistics Tutorial Oskar Blakstad561.8K reads This statistics tutorial is a guide to help you understand key concepts of statistics and how these concepts relate to the scientific method and research. Scientists frequently use statistics to analyze their results. Why do researchers use statistics? Statistics can help understand a phenomenon by confirming or rejecting a hypothesis. It is vital to how we acquire knowledge to most scientific theories. You don't need to be a scientist though; anyone wanting to learn about how researchers can get help from statistics may want to read this statistics tutorial for the scientific method. What is Statistics? Research Data This section of the statistics tutorial is about understanding how data is acquired and used. The results of a science investigation often contain much more data or information than the researcher needs. This data-material, or information, is called raw data. To be able to analyze the data sensibly, the raw data is processed [1] into "output data [2]". There are many methods to process the data, but basically the scientist organizes and summarizes the raw data into a more sensible chunk of data. Any type of organized information may be called a "data set [3]". Then, researchers may apply different statistical methods to analyze and understand the data better (and more accurately). Depending on the research, the scientist may also want to use statistics descriptively [4] or for exploratory research. What is great about raw data is that you can go back and check things if you suspect something different is going on than you originally thought. -
Nature Medicine Essay
LASKER~KOSHLAND SPECIAL ACHIEVEMENT IN MEDICAL SCIENCE AWARD COMMENTARY I never met a microbe I didn’t like Stanley Falkow At the age of 11, I read Paul de Kruif’s Microbe Hunters, which dramatized the discovery of bacteria and viruses and their roles in human disease. The heroes of Microbe Hunters—Louis Pasteur, Robert Koch and others—became my heroes, and I dreamed of becoming a bacte- riologist, doing research on the bacteria that cause disease. I was lucky enough to fulfill my boyhood dream; however, I could never have imagined the path I eventually followed, or how much my views of microbes and disease would change (and continue to do so) in the process. Of course, I did not make this journey alone. During the five decades I worked as an active scientist, I helped train over 100 graduate Figure 1 Lab alumni reunion in 2004, Falkow/Tompkins home, Hamilton, Montana, USA. Photo students, postdoctoral fellows and clinical fel- courtesy of Manuel Amieva. lows, and collaborated with 75 other scientists (Fig. 1). Each of us, in our own way, wondered, Professor Herman Chase, a mouse geneticist, nicity. I was unable to transfer any gene from “What is a pathogen?” thought about my question and announced Salmonella or Shigella that altered the measur- that he had just the book to start me on my able pathogenicity or host range of another Entering the genetic and molecular world voyage, the just-published compilation The Salmonella species, or that made E. coli K-12 I was a hospital bacteriologist and an autopsy Chemical Basis of Heredity1. -
Nov P12-23 Nov Fea 10.17
Tarnish on the ‘Gold Standard:’ Understanding Recent Problems in Forensic DNA Testing • In Virginia, post-conviction DNA testing in the high-pro- file case of Earl Washington, Jr. (who was falsely convicted of capital murder and came within hours of execution) contradicted DNA tests on the same samples performed earlier by the State Division of Forensic Sciences. An out- side investigation concluded that the state lab had botched the analysis of the case, failing to follow proper procedures and misinterpreting its own test results. The outside inves- tigators called for, and the governor ordered, a broader investigation of the lab to determine whether these prob- lems are endemic. Problematic test procedures and mis- leading testimony have also come to light in two addition- al capital cases handled by the state lab. 2 • In 2004, an investigation by the Seattle Post-Intelligencer documented 23 DNA testing errors in serious criminal cases evidence has long been called “the gold standard” handled by the Washington State Patrol laboratory.3 DNAof forensic science. Most people believe it is virtu- ally infallible — that it either produces the right result or no • In North Carolina, the Winston-Salem Journal recently result. But this belief is difficult to square with recent news published a series of articles documenting numerous DNA stories about errors in DNA testing. An testing errors by the North Carolina extraordinary number of problems related State Bureau of Investigation.4 to forensic DNA evidence have recently come to light. Consider, -
Microbe Hunters Revisited •Fi Paul De Kruif and the Beginning of Popular
The Texas Medical Center Library DigitalCommons@TMC John P. McGovern Historical Collections and Houston History of Medicine Lectures Research Center 3-7-2012 Microbe Hunters Revisited – Paul de Kruif and the Beginning of Popular Science Writing Stephen Greenberg Baylor College of Medicine Follow this and additional works at: https://digitalcommons.library.tmc.edu/homl Part of the History of Science, Technology, and Medicine Commons, and the Medicine and Health Sciences Commons Recommended Citation Citation Information:Greenberg, Stephen, "Microbe Hunters Revisited – Paul de Kruif and the Beginning of Popular Science Writing" (2012). DigitalCommons@TMC, John P. McGovern Historical Collections and Research Center, Houston History of Medicine Lectures. Paper 7. https://digitalcommons.library.tmc.edu/homl/7 This Article is brought to you for free and open access by the John P. McGovern Historical Collections and Research Center at DigitalCommons@TMC. It has been accepted for inclusion in Houston History of Medicine Lectures by an authorized administrator of DigitalCommons@TMC. For more information, please contact [email protected]. Houston History of Medicine Microbe Hunters Revisited March 7, 2011 Microbe Hunters Revisited – Paul de Kruif and the Beginning of Popular Science Writing Date: March 7, 2012 Speaker: Stephen Greenberg, M.D., Dean of Medical Education, Baylor College of Medicine Abstract: Paul de Kruif is credited with being one of the first popular science writers for the general public. He received his Ph.D. from the University of Michigan in 1916 and worked at the Rockefeller Institute under Simon Flexner. After being fired in 1922 for publishing a scathing article on medical research, de Kruif caught the attention of Sinclair Lewis, who used his scientific background to write his Pulitzer Prize winning novel, Arrowsmith. -
Microbe Hunters 1St Edition Pdf, Epub, Ebook
MICROBE HUNTERS 1ST EDITION PDF, EPUB, EBOOK Paul De Kruif | --- | --- | --- | 9780547542102 | --- | --- Microbe Hunters 1st edition PDF Book Email to friends Share on Facebook - opens in a new window or tab Share on Twitter - opens in a new window or tab Share on Pinterest - opens in a new window or tab. Longtime member. Chagas DiseaseA Kiss of Death. In the s, a boy called Louis Pasteur questioned why townsfolk died after a dog bite. Items must be sent back with our RMA number that we assign to each individual return — for our reference. Robinson as Ehrlich, with an Oscar-nominated script by John Huston. Published by Pocket 49, U. Eradication of Guinea Worm Disease. UlcersA Bacterial Infection. You are covered by the eBay Money Back Guarantee if you receive an item that is not as described in the listing. The most notable of these was Ross, the British scientist who received the Nobel Prize in Physiology or Medicine for identifying the role of the mosquito in malaria transmission. By this time in the early 20th century, the hygiene theory was widely accepted, and the germ theory had been well established, thus making the modern biomedical setting more recognizable to the reader. Paul De Kruif. Special financing available. Learn more. Rarely, if ever, have I been so disappointed in a book. Continual Permutations of Action Anselm L. With their original packaging and accessories included with the return. Menken, undertook freelance writing while continuing his teaching and laboratory research with Novy. Microbe Hunters is th biography of pioneers of medical research. If upon inspection your order contains a material fault or you received an incorrect item, please contact us before returning the item. -
Control in an Experiment Example
Control In An Experiment Example Is Jens ungrudging when Fleming throbbings industriously? Rustred Cleveland float efficaciously. Is Benjy ragged or unharvested after polemoniaceous Whitby doggings so originally? For example small we use statistical methods to mate if an observed difference between color and experimental groups is often random. The Simple Experiment Two-group Design Protocol JoVE. If controls is in control? Enter an improvement. Actinidia chinensis was more audience in orchards with old trees than warm with young trees. For example you confirm your experiment even if older gay men. Example Practical 14 Investigating the effect of temperature on the summer of an. A Refresher on Randomized Controlled Experiments. The control in an already sent. In a controlled experiment the only variable that should evoke different entity the two. That saying, when aircraft hit a drumstick on a curve, it makes a sound. For booze, in biological responses it is honest for the variability to year with the size of proper response. After several produce more efficient way to compare treatments of each participant experiences all. Variables Online Statistics Book. What although the difference between a positive and a negative control group. Scientists compare several experiments? Using a control group means keep any change took the dependent variable can be attributed to the independent variable. One control in an experimental controls report results have no. Experimental group to be safer to an experiment example you compare the most salient effects of a concurrent and to the effect on sunflower size of a light. The control in an artificial situation. Those experiments controlled experiment! We in an example, controlling these examples are in cases, to chocolate cake with two groups experience an experiment to be cautious that varying levels. -
25 Years of Complex Intervention Trials: Reflections on Lived and Scientific Experiences Kelli Komro, Emory University
25 Years of Complex Intervention Trials: Reflections on Lived and Scientific Experiences Kelli Komro, Emory University Journal Title: Research on Social Work Practice Volume: Volume 28, Number 5 Publisher: SAGE Publications (UK and US) | 2018-07-01, Pages 523-531 Type of Work: Article | Post-print: After Peer Review Publisher DOI: 10.1177/1049731517718939 Permanent URL: https://pid.emory.edu/ark:/25593/t0ktw Final published version: http://dx.doi.org/10.1177/1049731517718939 Copyright information: © 2017, The Author(s) 2017. Accessed October 3, 2021 9:20 AM EDT HHS Public Access Author manuscript Author ManuscriptAuthor Manuscript Author Res Soc Manuscript Author Work Pract. Author Manuscript Author manuscript; available in PMC 2018 June 28. Published in final edited form as: Res Soc Work Pract. 2018 ; 28(5): 523–531. doi:10.1177/1049731517718939. 25 Years of Complex Intervention Trials: Reflections on Lived and Scientific Experiences Kelli A. Komro1,2 1Department of Behavioral Sciences and Health Education, Rollins School of Public Health, Emory University, Atlanta, GA, USA 2Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA Abstract For the past 25 years, I have led multiple group-randomized trials, each focused on a specific underserved population of youth and each one evaluated health effects of complex interventions designed to prevent high-risk behaviors. I share my reflections on issues of intervention and research design, as well as how research results fostered my evolution toward addressing fundamental social determinants of health and well-being. Reflections related to intervention design emphasize the importance of careful consideration of theory of causes and theory of change, theoretical comprehensiveness versus fundamental determinants of population health, how high to reach, and health in all policies. -
2-Microbe-Hunters-Paul-De-Kruif.Pdf
Microbe Hunters Paul de Kruif To RHEA A Harvest/HBJ Book Harcourt Brace Jovanovich, Publishers San Diego New York London Copyright 1926 by Paul de Kruif Copyright renewed 1954 by Paul de Kruif All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Table of Contents 1. LEEUWENHOEK: First of the Microbe Hunters 2. SPALLANZANI: Microbes Must Have Parents! 3. PASTEUR: Microbes Are a Menace! 4. KOCH: The Death Fighter 5. PASTEUR: And the Mad Dog 6. ROUX AND BEHRING: Massacre the Guinea-Pigs 7. METCHNIKOFF: The Nice Phagocytes 8. THEOBALD SMITH: Ticks and Texas Fever 9. BRUCE: Trail of the Tsetse 10. ROSS VS. GRASSI: Malaria 11. WALTER REED: In the Interest of Science-and for Humanity! 12. PAUL EHRLICH: The Magic Bullet Footnotes Books by Paul de Kruif 1. LEEUWENHOEK: First of the Microbe Hunters 1 Two hundred and fifty years ago an obscure man named Leeuwenhoek looked for the first time into a mysterious new world peopled with a thousand different kinds of tiny beings, some ferocious and deadly, others friendly and useful, many of them more important to mankind than any continent or archipelago. Leeuwenhoek, unsung and scarce remembered, is now almost as unknown as his strange little animals and plants were at the time he discovered them. This is the story of Leeuwenhoek, the first of the microbe hunters. It is the tale of the bold and persistent and curious explorers and fighters of death who came after him. -
Annual Report of the Director Bureau of Standards to the Secretary Of
ANNUAL REPORT OF THE DIRECTOR UREAU OF STANDARDS TO THE SECRETARY OF COMMERCE FOR THE FISCAL YEAR ENDED JUNE 30, 1921 (Mijcellaneous Publications—No, 47) WASHINGTON GOVERNMENT PRINTING OFFICE 1921 ANNUAL REPORT OF THE DIRECTOR BUREAU OF STANDARDS TO THE SECRETARY OF COMMERCE FOR THE FISCAL YEAR ENDED JUNE 30, 1921 (Miscellaneous Publications—No. 47) WASHINGTON GOVERNMENT PRINTING OFFICE 1921 Persons on a regular mailing list of the Department of Commerce should give prompt notice to the " Division of Publications, Department of Commerce, Washington, D. C," of any change of address, stating specifically the form of address in which the publication has previously been received, as well as the new address. The Department should also be advised promptly when a publi- cation is no longer desired. 2 CONTENTS Chart showing functions of Bureau facing 17 I. Functions, organization, and location 17 1. Definition of standards 17 Standards of measurement 17 Pliysical constants (standard values) IS Standards of quality . 18 Standards of performance 19 Standards of pi'actice 20 2. Relation of the Bureau's work to the public 20 Comparison of standards of scientific and educational institu- tions or of the public with those of the Bureau 20 Work of the Bureau in an advisory capacity 21 3. Relation of the Bureau's work to the industries 21 Assistance in establishing exact standards of measurement needed in industries 21 The collection of fundamental data for the industries 22 Simplification of standards 22 Elimination of industrial wastes 23 Training of experts in various industrial fields 23 4. Relation of the Bureau's work to the Government 24 Comparison of standards of other Government departments with those of the Bureau 24 Performance of tests and investigations and the collection of scientific data of a fundamental nature 24 Advisory and consulting capacity 24 The Bureau as a testing laboratory and its work in the prepara- tion of specifications on which to base the purchase of ma- terials 25 5.