Everything You Wanted to Know About America's First Research University
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Why Joseph Erlanger Rejected the Local Circuit Theory of Nerve Impulse Propagation
Why Joseph Erlanger Rejected the Local Circuit Theory of Nerve Impulse Propagation Greg Gandenberger University of Pittsburgh, Department of History and Philosophy of Science 1017 Cathedral of Learning, Pittsburgh, PA 15260. [email protected] Abstract In the 1920s and 1930s, Joseph Erlanger and his colleagues expressed doubts about the local circuit theory of nerve impulse propagation in some of their publications. In 1934, their scepticism inspired Alan Hodgkin to begin a series of experiments that are generally regarded as providing strong support for the local circuit theory. Hodgkin’s experiments are well known, but the nature and sources of Erlanger’s scepticism are not. In the mid-1920s, Erlanger believed that oscillograph recordings indicated that the eddy currents generated by action currents are too small to propagate the nerve impulse as the local circuit theory proposes. In the 1930s, his fundamental objection to the local circuit theory was his belief that eddy currents large enough to propagate nerve impulses would dissipate a large amount of energy and produce uncontrolled stray effects. However, a 1936 discovery led him to admit that eddy currents do at least increase the excitability of an active fiber ahead of the action current wave. His opposition to the local circuit theory diminished further as a result of several developments between late 1938 and early 1939, including most notably Hodgkin demonstration that the resistance of the medium outside the active nerve affects propagation velocity. Word Count: 7467 Keywords Joseph Erlanger; Alan Hodgkin; local circuit theory; membrane theory; St. Louis School; electrophysiology 1. Introduction Early in his 1934-1935 year as a Cambridge undergraduate, Alan Hodgkin discovered that a blocked nerve impulse increases the excitability of the nerve beyond the block. -
All Hazards Plan for Baltimore City
All-Hazards Plan for Baltimore City: A Master Plan to Mitigate Natural Hazards Prepared for the City of Baltimore by the City of Baltimore Department of Planning Adopted by the Baltimore City Planning Commission April 20, 2006 v.3 Otis Rolley, III Mayor Martin Director O’Malley Table of Contents Chapter One: Introduction .........................................................................................................1 Plan Contents....................................................................................................................1 About the City of Baltimore ...............................................................................................3 Chapter Two: Natural Hazards in Baltimore City .....................................................................5 Flood Hazard Profile .........................................................................................................7 Hurricane Hazard Profile.................................................................................................11 Severe Thunderstorm Hazard Profile..............................................................................14 Winter Storm Hazard Profile ...........................................................................................17 Extreme Heat Hazard Profile ..........................................................................................19 Drought Hazard Profile....................................................................................................20 Earthquake and Land Movement -
Nats Rushing Newsom to Mound Against Chisox
I Nats Rushing Newsom to Mound Against Chisox 4 Fifth in Row Battle of Undefeated ose or Triumph Ennis' Punch Tells for Phillies; Uline Gets Franchise Over Chicago Is Goal; Nines Bosox Maintain Lead By FRANCIS E. STANN Midget Tops Strong In Newly Formed Which Was the Best Batting Team? Hudson Foils Tribe Boys' Card Pro Court "If you were a pitcher,” asked one of the young Nats the other Loop Loop The two undefeated night, "would you rather pitch to the 1946 Red Sox or to some of those By Burton Hawkins teams In the Special Dispatch to Tha Star other like midget class of the Western Division great hitting teams, the Yankees of 1927, the Athletics of Double-O Bobo NEW Newsom, the air- of the Club of YORK, June 7.—Mike 1929 or the Yankees of 1937? I never saw any of these teams, Boys’ Washington except conditioned who was last owner the Red Sox we pia> today,” pitcher in Baseball League clash in the feature Uline, of Uline Arena in line of tomorrow’s Now there s posing a little question that could when modesty was being dis- five-game schedule. Washington, D. C., has purchased a stir a few It will be Eastern winners up arguments. If I were a pitcher I’d tributed, will establish a beachhead Quins, franchise in a new professional bas- to the Mexican of four straight, against Alexandria jump League, temporarily, any on Griffith Stadium’s ket mound to- B. undefeated in three ball league organized here yes- time these clubs came to town. -
The Leadership Issue
SUMMER 2017 NON PROFIT ORG. U.S. POSTAGE PAID ROLAND PARK COUNTRY SCHOOL connections BALTIMORE, MD 5204 Roland Avenue THE MAGAZINE OF ROLAND PARK COUNTRY SCHOOL Baltimore, MD 21210 PERMIT NO. 3621 connections THE ROLAND PARK COUNTRY SCHOOL COUNTRY PARK ROLAND SUMMER 2017 LEADERSHIP ISSUE connections ROLAND AVE. TO WALL ST. PAGE 6 INNOVATION MASTER PAGE 12 WE ARE THE ROSES PAGE 16 ADENA TESTA FRIEDMAN, 1987 FROM THE HEAD OF SCHOOL Dear Roland Park Country School Community, Leadership. A cornerstone of our programming here at Roland Park Country School. Since we feel so passionately about this topic we thought it was fitting to commence our first themed issue of Connections around this important facet of our connections teaching and learning environment. In all divisions and across all ages here at Roland Park Country School — and life beyond From Roland Avenue to Wall Street graduation — leadership is one of the connecting, lasting 06 President and CEO of Nasdaq, Adena Testa Friedman, 1987 themes that spans the past, present, and future lives of our (cover) reflects on her time at RPCS community members. Joe LePain, Innovation Master The range of leadership experiences reflected in this issue of Get to know our new Director of Information and Innovation Connections indicates a key understanding we have about the 12 education we provide at RPCS: we are intentional about how we create leadership opportunities for our students of today — and We Are The Roses for the ever-changing world of tomorrow. We want our students 16 20 years. 163 Roses. One Dance. to have the skills they need to be successful in the future. -
Colombian Nationalism: Four Musical Perspectives for Violin and Piano
COLOMBIAN NATIONALISM: FOUR MUSICAL PERSPECTIVES FOR VIOLIN AND PIANO by Ana Maria Trujillo A Dissertation Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Musical Arts Major: Music The University of Memphis December 2011 ABSTRACT Trujillo, Ana Maria. DMA. The University of Memphis. December/2011. Colombian Nationalism: Four Musical Perspectives for Violin and Piano. Dr. Kenneth Kreitner, Ph.D. This paper explores the Colombian nationalistic musical movement, which was born as a search for identity that various composers undertook in order to discover the roots of Colombian musical folklore. These roots, while distinct, have all played a significant part in the formation of the culture that gave birth to a unified national identity. It is this identity that acts as a recurring motif throughout the works of the four composers mentioned in this study, each representing a different stage of the nationalistic movement according to their respective generations, backgrounds, and ideological postures. The idea of universalism and the integration of a national identity into the sphere of the Western musical tradition is a dilemma that has caused internal struggle and strife among generations of musicians and artists in general. This paper strives to open a new path in the research of nationalistic music for violin and piano through the analyses of four works written for this type of chamber ensemble: the third movement of the Sonata Op. 7 No.1 for Violin and Piano by Guillermo Uribe Holguín; Lopeziana, piece for Violin and Piano by Adolfo Mejía; Sonata for Violin and Piano No.3 by Luís Antonio Escobar; and Dúo rapsódico con aires de currulao for Violin and Piano by Andrés Posada. -
Father Heinrich As Kindred Spirit
father heinrich as kindred spirit or, how the log-house composer of kentucky became the beethoven of america betty e. chmaj Thine eyes shall see the light of distant skies: Yet, COLE! thy heart shall bear to Europe's strand A living image of their own bright land Such as on thy glorious canvas lies. Lone lakes—savannahs where the bison roves— Rocks rich with summer garlands—solemn streams— Skies where the desert eagle wheels and screams— Spring bloom and autumn blaze of boundless groves. Fair scenes shall greet thee where thou goest—fair But different—everywhere the trace of men. Paths, homes, graves, ruins, from the lowest glen To where life shrinks from the fierce Alpine air, Gaze on them, till the tears shall dim thy sight, But keep that earlier, wilder image bright. —William Cullen Bryant, "To Cole, the Painter, Departing for Europe" (1829) More than any other single painting, Asher B. Durand's Kindred Spirits of 1849 has come to speak for mid-nineteenth-century America (Figure 1). FIGURE ONE (above): Asher B. Durand, Kindred Spirits (1849). The painter Thomas Cole and the poet William Cullen Bryant are shown worshipping wild American Nature together from a precipice high in the CatskiJI Mountains. Reprinted by permission of the New York Public Library. 0026-3079/83/2402-0035$0l .50/0 35 The work portrays three kinds of kinship: the American's kinship with Nature, the kinship of painting and poetry, and the kinship of both with "the wilder images" of specifically American landscapes. Commissioned by a patron at the time of Thomas Cole's death as a token of gratitude to William Cullen Bryant for his eulogy at Cole's funeral, the work shows Cole and Bryant admiring together the kind of images both had commem orated in their art. -
Peabody Computer Music: 46 Years of Looking to the Future
ICMC 2015 – Sept. 25 - Oct. 1, 2015 – CEMI, University of North Texas Peabody Computer Music: 46 Years of Looking to the Future Dr. Geoffrey Wright Dr. McGregor Boyle Mr. Joshua Armenta Peabody Computer Music Peabody Computer Music Peabody Computer Music [email protected] [email protected] [email protected] Mr. Ryan Woodward Ms. Sunhuimei Xia Peabody Computer Music Peabody Computer Music [email protected] [email protected] ABSTRACT and tape). In addition, there were compositions by three of her former students: McGregor Boyle, Scott Pender, and Ge- There are many significant firsts in the history of Peabody offrey Wright. In between the performances friends and for- Computer Music (PCM). It is the first electronic and com- mer students of Ivey shared their memories of her–resulting in puter music studio in a conservatory in the United States [1]. a touching tribute to this wonderful composer, teacher, men- Peabody itself is the first conservatory of music in the U.S., tor, and friend. [1] and our parent institution, the Johns Hopkins University, is America’s first research university [2]. For 46 years PCM has been training highly-skilled musi- cians to use computers and technology for composition, per- formance, and music-related research. We work within the context of a conservatory that prizes the great accomplish- ments of the past even as we develop new musical vocabular- ies and techniques for the expressive musician of the future. New dean Fred Bronstein is a vital force in leading the old- est music conservatory in the U.S. into the 21st century [3]. -
Johns Hopkins University Style Guide Contents Introduction Names
JHU Office of Communications Style Guide page 1 Johns Hopkins University Style Guide Contents • Introduction • Names: Johns Hopkins University and its divisions • Style guidelines Introduction These guidelines were compiled by editors in the Office of Communications to encourage consistency and correct usage of terms across the many publications produced by JHU offices. The guidelines draw from The Associated Press Stylebook 2019 and the 17th edition of The Chicago Manual of Style. Written from a Johns Hopkins point of view, the guidelines are intended to complement AP and CMOS and, when those sources disagree, to choose between them. For points not addressed in the university guidelines, AP is the preferred source. For points not listed in AP, use the dictionary it recommends: Webster’s New World College Dictionary. When the dictionary gives two spellings, use the first one; when the dictionary and AP give different spellings, use AP’s. A number of individual JHU publications have their own style sheets, more detailed and directed to handling specialized content. Johns Hopkins Medicine, for example, has posted its Branding and Use of Name Toolkit http://brand.hopkinsmedicine.org/gui/content.asp. The guidelines below will supplement those already existing and will contribute to the effort to bring overall consistency to university publications. Names: Johns Hopkins University and its divisions The Johns Hopkins University/The Johns Hopkins Hospital: The preferred shortened name for Johns Hopkins University is Johns Hopkins, not Hopkins. The acronym JHU can be used as a shortened form in informal or internal communications and to avoid repetition of the Hopkins name. -
Freshman Fellows: Implementing and Assessing a First-Year Primary-Source Research Program
Library Impact Practice Brief Freshman Fellows: Implementing and Assessing a First-Year Primary-Source Research Program Research Team Members: Margaret Burri, Joshua Everett, Heidi Herr, and Jessica Keyes Sheridan Libraries, Johns H opkins Univ ersity July 15, 2021 This work is licensed under a Creative Commons Attribution 4.0 International License. Association of Research Libraries 21 Dupont Circle NW, Suite 800, Washington, DC 20036 (202) 296-2296 | ARL.org Issue Libraries spend significant time and money collecting and making Special Collections materials available to researchers. A critical piece of this work is teaching students how to engage with rare and unique materials to answer research questions and make new contributions to knowledge. Five years ago, to give scholars starting their college journey the chance to conduct original research, the Sheridan Libraries at Johns Hopkins University established a Freshman Fellows (FF) program1 that partners first-year students with their own curatorial mentor for a one-year research project. This program graduated its first cohort of four fellows in spring 2020, and the research team designed an assessment project to see how this experience impacted the fellows’ studies and co-curricular activities at Johns Hopkins, as well as the mentors’ approach to the program and their larger work in Special Collections. Additionally, the team realized that the program would benefit from a structured way to review the fellows’ final projects, so we added the development of an assessment rubric (Appendix 4). A former colleague, Steph Gamble, suggested mapping various pedagogical measures, including the Association of College & Research Libraries (ACRL) Framework for Information Literacy for Higher Education,2 into a rubric to be used to evaluate the work. -
82 2011 Johns Hopkins Men's Lacrosse Guide
JHU’s All-Time NCAA Tournament Results Year Date Round Opponent JHU Seed/Opp. Seed Result Attendance City, State Stadium 2010 May 15 First Round #5 Duke -/5 L/5-18 1,813 Durham, NC Koskinen Stadium 2009 May 9 First Round #11 Brown 8/- (OT) W/12-11 12,142 Baltimore, MD Homewood Field 2009 May 17 Quarterfinals #5 Virginia 8/1 L/8-19 2,491 Annapolis, MD Navy Marine Corps Stadium 2008 May 11 First Round #16 Hofstra 5/- W/10-4 2,864 Baltimore, MD Homewood Field 2008 May 17 Quarterfinals #14 Navy 5/- W/10-4 17,017 Annapolis, MD Navy Marine Corps Stadium 2008 May 24 Semifinals #1 Duke 5/1 W/10-9 48,224 Foxboro, MA Gillette Stadium 2008 May 26 Championship #3 Syracuse 5/3 L/10-13 48,970 Foxboro, MA Gillette Stadium 2007 May 12 First Round #11 Notre Dame 3/- (OT) W/11-10 2,548 Baltimore, MD Homewood Field 2007 May 19 Quarterfinals #6 Georgetown 3/6 W/14-6 8,123 Princeton, NJ Princeton Stadium 2007 May 26 Semifinals #15 Delaware 3/- W/8-3 52,004 Baltimore, MD M&T Bank Stadium 2007 May 28 Championship #2 Duke 3/1 W/12-11 48,443 Baltimore, MD M&T Bank Stadium 2006 May 13 First Round #13 Penn 4/- W/13-3 1,964 Baltimore, MD Homewood Field 2006 May 20 Quarterfinals #5 Syracuse 4/5 L/12-13 8,335 Stony Brook, NY LaValle Stadium 2005 May 14 First Round Marist 1/- W/22-6 1,175 Baltimore, MD Homewood Field 2005 May 21 Quarterfinals #8 UMass 1/8 W/19-9 6,504 Baltimore, MD Homewood Field 2005 May 28 Semifinals #4 Virginia 1/4 (OT) W/9-8 45,275 Philadelphia, PA Lincoln Financial Field 2005 May 30 Championship #2 Duke 1/2 W/9-8 44,920 Philadelphia, PA Lincoln -
Visiting Caltech's Giant Sequoias
California Institute of Technology Volume 25, No.2 April 1991 Not many people know that the three largest trees in Caltech 's acreage tn the Neider Grove are named for Millikan, Hale, and Noyes. One of the giant .equola.ln Caltech'. acreage rI.e. toward the .ky. Visiting Caltech's giant sequoias by Ted Combs, BS '27 Not many people-not even Cal tech his pracrice rhere, and married a Miss forest containing more than 100 giant oldtimers-know that the Institute owns Clara Fowler. Clara's farher was a suc sequoias. an acreage of giant sequoias in the cessful lumberman, a holder of mineral Fortunately for Caltech, soon after remote Nelder Grove area JUSt south of rights, and vice president of his Fleming arrived in Pasadena, he was the Yosemite National Park boundary. brorher-in-Iaw's business. The brorher induced by President Edwards of Although some of the trees date back ro in-law was Cyrus McCormick. Throop Polytechnic Institute ro help before the birth of Christ, Caltech's Before long, Arthur also became support the school. In fact, he became chapter in the hisrory of the ttees begins involved in his father-in-Iaw's lumber its principal benefactor. In 1903, he in 1922. It begins, actually, with business. In 1896, in a move related to was elected to the board of trustees. In Arthur H. Fleming, wealthy Pasadenan Clara's healrh, rhe Flemings came ro 1910 he became the board vice and benefacror of Throop Polytechnic Pasadena, and Arthur's lumber interesrs president, and in 1917, board president. -
America First and the Populist Impact on US Foreign Policy
Survival Global Politics and Strategy ISSN: 0039-6338 (Print) 1468-2699 (Online) Journal homepage: https://www.tandfonline.com/loi/tsur20 America First and the Populist Impact on US Foreign Policy Georg Löfflmann To cite this article: Georg Löfflmann (2019) America First and the Populist Impact on US Foreign Policy, Survival, 61:6, 115-138, DOI: 10.1080/00396338.2019.1688573 To link to this article: https://doi.org/10.1080/00396338.2019.1688573 Published online: 19 Nov 2019. Submit your article to this journal Article views: 515 View related articles View Crossmark data Full Terms & Conditions of access and use can be found at https://www.tandfonline.com/action/journalInformation?journalCode=tsur20 America First and the Populist Impact on US Foreign Policy Georg Löfflmann The election of Donald Trump as president of the United States and the success of Brexit in the European Union referendum campaign in the United Kingdom are the most prominent examples of the populist disruption of the status quo in international politics. This has led to heightened interest in the phenomenon of populism, both among global media and in academia.1 In the past, most analysts viewed populism as a domestic phenomenon rel- evant to voter mobilisation, with a particular focus on its impact on liberal democratic systems, comparisons among populist movements and leaders, and its development in Europe and Latin America.2 Populism’s impact on foreign policy and national security has garnered relatively little attention, and there has been little crossover between