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George W. Whitehead Jr
George W. Whitehead Jr. 1918–2004 A Biographical Memoir by Haynes R. Miller ©2015 National Academy of Sciences. Any opinions expressed in this memoir are those of the author and do not necessarily reflect the views of the National Academy of Sciences. GEORGE WILLIAM WHITEHEAD JR. August 2, 1918–April 12 , 2004 Elected to the NAS, 1972 Life George William Whitehead, Jr., was born in Bloomington, Ill., on August 2, 1918. Little is known about his family or early life. Whitehead received a BA from the University of Chicago in 1937, and continued at Chicago as a graduate student. The Chicago Mathematics Department was somewhat ingrown at that time, dominated by L. E. Dickson and Gilbert Bliss and exhibiting “a certain narrowness of focus: the calculus of variations, projective differential geometry, algebra and number theory were the main topics of interest.”1 It is possible that Whitehead’s interest in topology was stimulated by Saunders Mac Lane, who By Haynes R. Miller spent the 1937–38 academic year at the University of Chicago and was then in the early stages of his shift of interest from logic and algebra to topology. Of greater importance for Whitehead was the appearance of Norman Steenrod in Chicago. Steenrod had been attracted to topology by Raymond Wilder at the University of Michigan, received a PhD under Solomon Lefschetz in 1936, and remained at Princeton as an Instructor for another three years. He then served as an Assistant Professor at the University of Chicago between 1939 and 1942 (at which point he moved to the University of Michigan). -
Qisar-Alexander-Ollongren-Astrolinguistics.Pdf
Astrolinguistics Alexander Ollongren Astrolinguistics Design of a Linguistic System for Interstellar Communication Based on Logic Alexander Ollongren Advanced Computer Science Leiden University Leiden The Netherlands ISBN 978-1-4614-5467-0 ISBN 978-1-4614-5468-7 (eBook) DOI 10.1007/978-1-4614-5468-7 Springer New York Heidelberg Dordrecht London Library of Congress Control Number: 2012945935 © Springer Science+Business Media New York 2013 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, speci fi cally the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on micro fi lms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. Exempted from this legal reservation are brief excerpts in connection with reviews or scholarly analysis or material supplied speci fi cally for the purpose of being entered and executed on a computer system, for exclusive use by the purchaser of the work. Duplication of this publication or parts thereof is permitted only under the provisions of the Copyright Law of the Publisher’s location, in its current version, and permission for use must always be obtained from Springer. Permissions for use may be obtained through RightsLink at the Copyright Clearance Center. Violations are liable to prosecution under the respective Copyright Law. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a speci fi c statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. -
Mouse Breeding Colony Management 1. Mouse Reproduction A. General Mouse Information I. the Average Mouse Lives Approximately
Mouse Breeding Colony Management 1. Mouse Reproduction A. General Mouse Information i. The average mouse lives approximately 2.5 years; however, the reproductive life span of mice is significantly shorter at 7-8 months. ii. Most mice reach sexual maturity (males and females) at 4-7 weeks of age. Younger mice generally produce smaller litters and therefore are not typically mated until they reach 6-8 weeks, of age. Mice that have been housed alone or in same-sex pairs will usually not breed successfully if they are older than 6-8 months. iii. The mouse estrous cycle is 4-5 days in length. Mice cycle continuously throughout the year (non-seasonal breeders). Female mice are only receptive to males when they are in estrus. Mating typically occurs at night (lights off). Ovulation occurs 8-12 hours after the onset of estrous. iv. If fertilization occurs, fetuses can be palpated by day 14. v. Gestation in mice is typically 19-21 days (strain dependent). vi. Parturition in mice may last 1-3 hours and frequently occurs at night. Females will go into estrus within 24 hours of parturition and are sexually receptive during this time. vii. Litter size varies among strains, but averages 4-12 pups. Inbred mice tend to have smaller litters than outbred mice. viii. Mice are typically weaned at 21-28 days or at 10g of body weight. The Purdue Animal Care and Use Committee requires that mouse pups be weaned at 21 days unless PACUC approval is given on an approved animal use protocol. See Policy attached. -
Wanderings Newsletter of the OUTDOORS CLUB INC
Wanderings newsletter of the OUTDOORS CLUB INC. www.OutdoorsClubNY.org ISSUE NUMBER 125 PUBLISHED TRI-ANNUALLY Mar-Jun 2020 The Outdoors Club is a non-profit 501(c) (3) volunteer-run organization open to all pleasant adults 18 and over that engages in hiking, biking, wilderness trekking, canoeing, mountaineering, snowshoeing and skiing, nature and educational city walking tours of varying difficulty. Individual participants are expected to engage in activities suitable to their ability, experience and physical condition. Leaders may refuse to take anyone who lacks ability or is not properly dressed or equipped. These precautions are for your safety and the well-being of the group. Your participation is voluntary and at your own risk. Remember to bring lunch and water on all full-day activities. Telephone the leader or Lenny if unsure what to wear or bring with you on an activity. Nonmembers pay one-day membership dues of $3. We will miss Bob Ward who left NYC for sunny California. He has been such an important part of the Outdoors Club especially for his knowledge and help in running the Club, and for all the outings he has led for us. He knew the history, places to visit, and little known facts about the area. He started off as a Club Delegate for the New York-New Jersey Trail Conference, served on committees, was Chair of the New York Metro Trails Committee, and currently was Chair of the Queens Parks Trails Council which he founded about six years ago. Bob, thank you and have a wonderful life in your new home. -
Behavioral Roles of Oxytocin and Vasopressin
Chapter 3 Behavioral Roles of Oxytocin and Vasopressin Benjamin C. Nephew Additional information is available at the end of the chapter http://dx.doi.org/10.5772/50422 1. Introduction Arginine Vasopressin (AVP) and oxytocin (OXT) are peptide hormones found in most mammals that have vital physiological and behavioral actions. The major sites of AVP production are the paraventricular (PVN) and supraoptic (SON) nuclei in the hypothalamus, although AVP and its receptors are found in numerous brain nuclei and peripheral tissues. AVP’s physiological roles, which are mediated through both peripheral and central mechanisms, include regulating fluid homeostasis and blood pressure. It is also an important component of the endocrine stress response through its actions in the posterior pituitary gland, where it is a secretagogue of ACTH, stimulating the release of corticosteroid stress hormones and catecholamines from the adrenal glands. The three receptor subtypes for AVP are V1a, V1b, and V2. V2 receptors mediate the fluid regulating actions of AVP in the periphery, where the behavioral and central endocrine functions of AVP are mediated by the V1a and V1b receptors in the brain. These receptors are also involved in the central control of cardiovascular activity. Oxytocin’s major physiological roles are to facilitate uterine contractions during birth through a positive feedback mechanism during the second and third stages of labor, and to mediate milk letdown. In lactating mammalian mothers, OXT initiates milk letdown in the mammary glands, and the release of OXT is stimulated by suckling. OXT has one known receptor which has several alleles. The focus of the present chapter will be on the social behavior functions of both AVP and OXT. -
The Perception of Melodic Consonance: an Acoustical And
The perception of melodic consonance: an acoustical and neurophysiological explanation based on the overtone series Jared E. Anderson University of Pittsburgh Department of Mathematics Pittsburgh, PA, USA Abstract The melodic consonance of a sequence of tones is explained using the overtone series: the overtones form “flow lines” that link the tones melodically; the strength of these flow lines determines the melodic consonance. This hypothesis admits of psychoacoustical and neurophysiological interpretations that fit well with the place theory of pitch perception. The hypothesis is used to create a model for how the auditory system judges melodic consonance, which is used to algorithmically construct melodic sequences of tones. Keywords: auditory cortex, auditory system, algorithmic composition, automated com- position, consonance, dissonance, harmonics, Helmholtz, melodic consonance, melody, musical acoustics, neuroacoustics, neurophysiology, overtones, pitch perception, psy- choacoustics, tonotopy. 1. Introduction Consonance and dissonance are a basic aspect of the perception of tones, commonly de- scribed by words such as ‘pleasant/unpleasant’, ‘smooth/rough’, ‘euphonious/cacophonous’, or ‘stable/unstable’. This is just as for other aspects of the perception of tones: pitch is described by ‘high/low’; timbre by ‘brassy/reedy/percussive/etc.’; loudness by ‘loud/soft’. But consonance is a trickier concept than pitch, timbre, or loudness for three reasons: First, the single term consonance has been used to refer to different perceptions. The usual convention for distinguishing between these is to add an adjective specifying what sort arXiv:q-bio/0403031v1 [q-bio.NC] 22 Mar 2004 is being discussed. But there is not widespread agreement as to which adjectives should be used or exactly which perceptions they are supposed to refer to, because it is difficult to put complex perceptions into unambiguous language. -
Interview of Albert Tucker
University of Tennessee, Knoxville TRACE: Tennessee Research and Creative Exchange About Harlan D. Mills Science Alliance 9-1975 Interview of Albert Tucker Terry Speed Evar Nering Follow this and additional works at: https://trace.tennessee.edu/utk_harlanabout Part of the Mathematics Commons Recommended Citation Speed, Terry and Nering, Evar, "Interview of Albert Tucker" (1975). About Harlan D. Mills. https://trace.tennessee.edu/utk_harlanabout/13 This Report is brought to you for free and open access by the Science Alliance at TRACE: Tennessee Research and Creative Exchange. It has been accepted for inclusion in About Harlan D. Mills by an authorized administrator of TRACE: Tennessee Research and Creative Exchange. For more information, please contact [email protected]. The Princeton Mathematics Community in the 1930s (PMC39)The Princeton Mathematics Community in the 1930s Transcript Number 39 (PMC39) © The Trustees of Princeton University, 1985 ALBERT TUCKER CAREER, PART 2 This is a continuation of the account of the career of Albert Tucker that was begun in the interview conducted by Terry Speed in September 1975. This recording was made in March 1977 by Evar Nering at his apartment in Scottsdale, Arizona. Tucker: I have recently received the tapes that Speed made and find that these tapes carried my history up to approximately 1938. So the plan is to continue the history. In the late '30s I was working in combinatorial topology with not a great deal of results to show. I guess I was really more interested in my teaching. I had an opportunity to teach an undergraduate course in topology, combinatorial topology that is, classification of 2-dimensional surfaces and that sort of thing. -
After Ramanujan Left Us– a Stock-Taking Exercise S
Ref: after-ramanujanls.tex Ver. Ref.: : 20200426a After Ramanujan left us– a stock-taking exercise S. Parthasarathy [email protected] 1 Remembering a giant This article is a sequel to my article on Ramanujan [14]. April 2020 will mark the death centenary of the legendary Indian mathe- matician – Srinivasa Ramanujan (22 December 1887 – 26 April 1920). There will be celebrations of course, but one way to honour Ramanujan would be to do some introspection and stock-taking. This is a short survey of notable achievements and contributions to mathematics by Indian institutions and by Indian mathematicians (born in India) and in the last hundred years since Ramanujan left us. It would be highly unfair to compare the achievements of an individual, Ramanujan, during his short life span (32 years), with the achievements of an entire nation over a century. We should also consider the context in which Ramanujan lived, and the most unfavourable and discouraging situation in which he grew up. We will still attempt a stock-taking, to record how far we have moved after Ramanujan left us. Note : The table below should not be used to compare the relative impor- tance or significance of the contributions listed there. It is impossible to list out the entire galaxy of mathematicians for a whole century. The table below may seem incomplete and may contain some inad- vertant errors. If you notice any major lacunae or omissions, or if you have any suggestions, please let me know at [email protected]. 1 April 1920 – April 2020 Year Name/instit. Topic Recognition 1 1949 Dattatreya Kaprekar constant, Ramchandra Kaprekar number Kaprekar [1] [2] 2 1968 P.C. -
Aldo Ciccolini Preludiu, Coral Și Fugă / Suita Bergamască / Două Piese Pitorești Mp3, Flac, Wma
Aldo Ciccolini Preludiu, Coral Și Fugă / Suita Bergamască / Două Piese Pitorești mp3, flac, wma DOWNLOAD LINKS (Clickable) Genre: Classical Album: Preludiu, Coral Și Fugă / Suita Bergamască / Două Piese Pitorești Country: Romania Released: 1968 Style: Classical, Romantic MP3 version RAR size: 1748 mb FLAC version RAR size: 1976 mb WMA version RAR size: 1671 mb Rating: 4.3 Votes: 619 Other Formats: MMF AU DTS MIDI AC3 FLAC VOX Tracklist Hide Credits Preludiu, Coral Și Fugă A1 Composed By – César Franck Suita Bergamască Composed By – Claude Debussy B2.1 I. Preludiu B2.2 II. Menuet B2.3 III. Clar De Lună B2.4 IV. Passepied Două Piese Pitorești Composed By – Emmanuel Chabrier B3.1 I. Peisaj B3.2 II. Scherzo - Vals Companies, etc. Printed By – I.P. Fabrica de Timbre – cd. 7006/968 Credits Graphics – Jean Eugen Liner Notes – Alfred Hoffman Photography By – Morel Volbură Piano – Aldo Ciccolini Notes Tiparul : I.P.F.T. cd. 7006/968 Made in Romania FT [I.P. Fabrica De Timbre] logo not printed rear sleeve Yellow lemon labels with purple and black print Barcode and Other Identifiers Other: N. I . 760/66 Other (Price): Lei 28 Other versions Category Artist Title (Format) Label Category Country Year Aldo Ciccolini - César Aldo Ciccolini - Franck / Claude Debussy / César Franck / Emmanuel Chabrier - ECE 0345 Claude Debussy / Electrecord ECE 0345 Romania Unknown Preludiu, Coral Și Fugă / Emmanuel Suita Bergamască / Două Chabrier Piese Pitorești (LP, Mono) Aldo Ciccolini - César Aldo Ciccolini - Franck / Claude Debussy / César Franck / Emmanuel Chabrier -
Program of the Sessions San Diego, California, January 9–12, 2013
Program of the Sessions San Diego, California, January 9–12, 2013 AMS Short Course on Random Matrices, Part Monday, January 7 I MAA Short Course on Conceptual Climate Models, Part I 9:00 AM –3:45PM Room 4, Upper Level, San Diego Convention Center 8:30 AM –5:30PM Room 5B, Upper Level, San Diego Convention Center Organizer: Van Vu,YaleUniversity Organizers: Esther Widiasih,University of Arizona 8:00AM Registration outside Room 5A, SDCC Mary Lou Zeeman,Bowdoin upper level. College 9:00AM Random Matrices: The Universality James Walsh, Oberlin (5) phenomenon for Wigner ensemble. College Preliminary report. 7:30AM Registration outside Room 5A, SDCC Terence Tao, University of California Los upper level. Angles 8:30AM Zero-dimensional energy balance models. 10:45AM Universality of random matrices and (1) Hans Kaper, Georgetown University (6) Dyson Brownian Motion. Preliminary 10:30AM Hands-on Session: Dynamics of energy report. (2) balance models, I. Laszlo Erdos, LMU, Munich Anna Barry*, Institute for Math and Its Applications, and Samantha 2:30PM Free probability and Random matrices. Oestreicher*, University of Minnesota (7) Preliminary report. Alice Guionnet, Massachusetts Institute 2:00PM One-dimensional energy balance models. of Technology (3) Hans Kaper, Georgetown University 4:00PM Hands-on Session: Dynamics of energy NSF-EHR Grant Proposal Writing Workshop (4) balance models, II. Anna Barry*, Institute for Math and Its Applications, and Samantha 3:00 PM –6:00PM Marina Ballroom Oestreicher*, University of Minnesota F, 3rd Floor, Marriott The time limit for each AMS contributed paper in the sessions meeting will be found in Volume 34, Issue 1 of Abstracts is ten minutes. -
E. T. Bell and Mathematics at Caltech Between the Wars Judith R
E. T. Bell and Mathematics at Caltech between the Wars Judith R. Goodstein and Donald Babbitt E. T. (Eric Temple) Bell, num- who was in the act of transforming what had been ber theorist, science fiction a modest technical school into one of the coun- novelist (as John Taine), and try’s foremost scientific institutes. It had started a man of strong opinions out in 1891 as Throop University (later, Throop about many things, joined Polytechnic Institute), named for its founder, phi- the faculty of the California lanthropist Amos G. Throop. At the end of World Institute of Technology in War I, Throop underwent a radical transformation, the fall of 1926 as a pro- and by 1921 it had a new name, a handsome en- fessor of mathematics. At dowment, and, under Millikan, a new educational forty-three, “he [had] be- philosophy [Goo 91]. come a very hot commodity Catalog descriptions of Caltech’s program of in mathematics” [Rei 01], advanced study and research in pure mathematics having spent fourteen years in the 1920s were intended to interest “students on the faculty of the Univer- specializing in mathematics…to devote some sity of Washington, along of their attention to the modern applications of with prestigious teaching mathematics” and promised “to provide defi- stints at Harvard and the nitely for such a liaison between pure and applied All photos courtesy of the Archives, California Institute of Technology. of Institute California Archives, the of courtesy photos All University of Chicago. Two Eric Temple Bell (1883–1960), ca. mathematics by the addition of instructors whose years before his arrival in 1951. -
Howtobreak the Cycle of Low-Growthbig-Statism
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