Bad Habits Asserting Themselves How a Mild Virus Might Turn
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Dark Matter Thermonuclear Supernova Ignition
MNRAS 000,1{21 (2019) Preprint 1 January 2020 Compiled using MNRAS LATEX style file v3.0 Dark Matter Thermonuclear Supernova Ignition Heinrich Steigerwald,1? Stefano Profumo,2 Davi Rodrigues,1 Valerio Marra1 1Center for Astrophysics and Cosmology (Cosmo-ufes) & Department of Physics, Federal University of Esp´ırito Santo, Vit´oria, ES, Brazil 2Department of Physics and Santa Cruz Institute for Particle Physics, 1156 High St, University of California, Santa Cruz, CA 95064, USA Accepted XXX. Received YYY; in original form ZZZ ABSTRACT We investigate local environmental effects from dark matter (DM) on thermonuclear supernovae (SNe Ia) using publicly available archival data of 224 low-redshift events, in an attempt to shed light on the SN Ia progenitor systems. SNe Ia are explosions of carbon-oxygen (CO) white dwarfs (WDs) that have recently been shown to explode at sub-Chandrasekhar masses; the ignition mechanism remains, however, unknown. Recently, it has been shown that both weakly interacting massive particles (WIMPs) and macroscopic DM candidates such as primordial black holes (PBHs) are capable of triggering the ignition. Here, we present a method to estimate the DM density and velocity dispersion in the vicinity of SN Ia events and nearby WDs; we argue that (i) WIMP ignition is highly unlikely, and that (ii) DM in the form of PBHs distributed according to a (quasi-) log-normal mass distribution with peak log10¹m0/1gº = 24:9±0:9 and width σ = 3:3 ± 1:0 is consistent with SN Ia data, the nearby population of WDs and roughly consistent with other constraints from the literature. -
Bbc Corporate Responsibility Performance Review 2012
BBC CORPORATE RESPONSIBILITY PERFORMANCE REVIEW 2012 For more information see www.bbc.co.uk/outreach 2 Contents Welcome to our latest Corporate Responsibility Performance Review, the last during my time as Director-General. Introduction 3 The BBC’s focus as an international public service broadcaster continues to be on distinctive output, improved value for money, Outreach and the BBC’s Public Purposes 5 doing more to serve all our audiences and being even more open about what we do. Our strategic six-year plan, Delivering Quality Sustainability 13 First, and the long term savings we need to find to live within our means have inevitably meant some tough choices in 2011/12; Our Business 18 however, some things are not negotiable. Supporting Charities 25 BBC licence fee payers expect high quality content across our services; they also expect the BBC to meet the highest standards in Looking Ahead 30 how we behave as an organisation. I believe we are delivering on both of those expectations. In this remarkable year for the UK it has been a source of pride that the work we do beyond broadcasting to benefit our audiences has been so imaginative, collaborative and far-reaching. Cover image: Stargazing Live Oxfordshire, A Stargazing LIVE event at the Rollright Stones, Oxfordshire, organised by Chipping Norton Amateur Astronomy Group attracted around 150 enthusiasts. Mark Thompson Photo: Mel Gigg, CNAAG For more information about other areas of our business, please 3 Introduction see the BBC Annual Report and Accounts the London 2012 Apprenticeships scheme is now building an Olympics legacy in training and careers. -
MOBILE INTERNET and the RISE of DIGITAL ACTIVISM AMONG UNIVERSITY STUDENTS in NIGERIA Thesis Submitted for the Degree of Doct
MOBILE INTERNET AND THE RISE OF DIGITAL ACTIVISM AMONG UNIVERSITY STUDENTS IN NIGERIA Thesis Submitted for the degree of Doctor of Philosophy at the University of Canberra by Temple Uwalaka News and Media Research Centre Faculty of Arts and Design October, 2017 ABSTRACT ___________________________________________________________________________ Digital activism literature has proposed several ways in which social media impacts collective actions. These include providing news and information not available on traditional platforms, assisting in the coordination of protests, helping users to join political causes, creating opportunities for protestors to interact with one another, spreading enthusiasm and facilitating emotional contagion (Bennett & Segerberg, 2011, 2014; Chadwick & Howard, 2010; de- Zúñiga, Jung, & Valenzuela, 2012; Gerbaudo, 2012, 2016; Halupka, 2014, 2016; Reedy & Wells, 2010). However many of these previous works (a) do not focus upon mobile social networking applications, and (b) are located within either legacy democracies or authoritarian regimes. In order to bridge this research gap, this study focuses upon the use of mobile social networking applications to support digital activism within the nascent democracy of Nigeria, a country that has only recently returned from military dictatorship. Specifically, this study investigates the impact of mobile internet on the rise of digital activism among Nigerian university students from two universities in Nigeria during the 2012 Occupy Nigeria protest against the removal of petroleum subsidies by the Federal Government of Nigeria. The movement lasted for one month and took place in all the major cities in Nigeria. A mixed-methods approach was adopted featuring two principal methods: (a) a cross- sectional quantitative survey of media platforms used by protestors (n=440); and (b) semi- structured qualitative interviews on protestors’ experiences before, during and after Occupy Nigeria (n=19). -
Lunar Portrait Rick Bria Captured This Image of the Moon with a 76Mm Televue Refractor and a Canon T1i (In Video Mode) on September 15, 2010
WESTCHESTER AMATEUR ASTRONOMERS NOVEMBER 2010 Sky tch Lunar Portrait Rick Bria captured this image of the Moon with a 76mm Televue Refractor and a Canon T1i (in video mode) on September 15, 2010. The image is a 212 digital stack from a video containing thousands of frames. It was processed in Registax 5 and Photoshop CS5. Notes Rick: A quick look confirms that the Moon has been bombarded with asteroid impacts. These impact craters are a record of the violent conditions in our early solar system. Billions of years ago asteroids hit the Earth, and the Moon with tremendous force, blasting out craters. Since the Moon has no wind, rain, or plate tectonics, its craters remain to this day for us to study. The Earth has about one hundred craters that still can be seen (some from Google Earth) compared to the Moon which has about thirty thousand craters. ANNUAL ELECTION It's election time for the Westchester Amateur Astronomers. Please print out the Ballot on Page 8 of this issue, mark your votes, and then bring it to the November 5th meeting or mail to the Club at WAA, PO Box 44, Valhalla, NY 10595 postmarked no later than November 15th. SERVING THE ASTRONOMY COMMUNITY SINCE 1983 Page 1 WESTCHESTER AMATEUR ASTRONOMERS NOVEMBER 2010 Events for November 2010 WAA Lectures Renewing Members. “The Discovery of Supernova 2008ha" Frank Jones - New Rochelle Friday November 5th, 8:00pm Olivier Prache - Pleasantville Miller Lecture Hall, Pace University Tom Boustead - White Plains Pleasantville, NY Rosalind Mendell - Hartsdale Caroline Moore will speak on her discovery of a rare Scott Nammacher - White Plains supernova. -
Africa Magazine
FOCUS ON MEDIA INFORMATION 2007 AFRICA MAGAZINE Now in its eighteenth successful year, BBC Focus on Africa from across Africa and around the world to its listeners in READERSHIP PROFILE Magazine is published quarterly by the BBC World Service, sub-Saharan Africa. and distributed in virtually every English-speaking country Male 87 Female 13 in Africa. Although it continues to broadcast on short-wave the BBC is becoming increasingly available on FM, making it Aged up to 24 9 Aged 25 to 34 33 The magazine enjoys an excellent reputation as it is seen easier for people across Africa to tune in to its Aged 35 to 44 32 to represent the high quality associated with the BBC programmes. Aged 45 or older 25 No formal/ 2 name. Using a network of correspondents over the primary education continent, it reflects the unbiased, informative and African Heads of State, Ministers and Opposition Leaders Secondary 22 invaluable reporting of the BBC. are frequently interviewed in BBC programmes for Africa Higher 76 in seven different languages. Professional 50 Editorial address Skilled Occupation 21 BBC Focus on Africa magazine Each edition is full of feature articles, news reports and Manual Occupation 5 Bush House Service Occupation 6 photographs covering the continent’s latest political, Student 9 PO Box 76 THE AUDIENCE economic, social, cultural and sporting developments and Other 9 % of Adults (15+) Strand 0 10 20 30 40 50 60 70 80 90 100 London WC2B 4PH providing a unique picture of Africa today. In a typical week, 59.2 million adults listen to the BBC United Kingdom in Africa in any language. -
West and Central Africa Gmt to Gmt+2
WEST AND CENTRAL AFRICA GMT TO GMT+2 A GUIDE TO LISTENING IN ENGLISH including The Gambia, Ghana, Liberia, Sierra Leone (GMT), Nigeria (GMT +1) MARCH – OCTOBER 2021 and Democratic Republic of Congo (GMT +1 to +2) Where you see this sign v you will hear a short News Update at 30 minutes past the hour GMT SATURDAY SUNDAY MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY GMT 0:00 News News News News News News News 0:00 0:06 Business Matters v The Science Hour v World Business Report v Business Matters v Business Matters v Business Matters v Business Matters v 0:06 0:32 Disovery (rpt) 0:32 1:00 The Newsroom v The Newsroom v The Newsroom v The Newsroom v The Newsroom v The Newsroom v The Newsroom v 1:00 1:32 This is Africa When Katty Met Carlos The Climate Question The Documentary (Tue) The Compass Assignment World Football 1:32 2:00 News News News News News News News 2:00 2:06 The Fifth Floor v Weekend Documentary/ Weekend Feature v Outlook v Outlook v Outlook v Outlook v 2:06 2:32 Book Club v The Story 2:32 2:50 Witness Over To You Witness Witness Witness Witness 2:50 3:00 News News The Newsroom v The Newsroom v The Newsroom v The Newsroom v The Newsroom v 3:00 3:06 The Real Story (rpt) v FOOC v 3:06 3:32 The Cultural Frontline The Conversation In The Studio The Documentary (Wed) The Food Chain Heart & Soul 3:32 4:00 The Newsroom v The Newsroom v Newsday v Newsday v Newsday v Newsday v Newsday v 4:00 4:32 Trending The Documentary (Tue) 4:32 4:50 Ros Atkins On… (rpt) 4:50 5:00 Weekend v Weekend v Newsday v Newsday v Newsday v Newsday v Newsday v 5:00 -
The Carnegie Supernova Project. I. Third Photometry Data Release of Low-Redshift Type Ia Supernovae and Other White Dwarf Explosions
The Astronomical Journal, 154:211 (34pp), 2017 November https://doi.org/10.3847/1538-3881/aa8df0 © 2017. The American Astronomical Society. All rights reserved. The Carnegie Supernova Project. I. Third Photometry Data Release of Low-redshift Type Ia Supernovae and Other White Dwarf Explosions Kevin Krisciunas1 , Carlos Contreras2,3, Christopher R. Burns4 , M. M. Phillips2 , Maximilian D. Stritzinger2,3 , Nidia Morrell2 , Mario Hamuy5, Jorge Anais2, Luis Boldt2, Luis Busta2 , Abdo Campillay2, Sergio Castellón2, Gastón Folatelli2,6, Wendy L. Freedman4,7, Consuelo González2, Eric Y. Hsiao2,3,8 , Wojtek Krzeminski2,17, Sven Eric Persson4 , Miguel Roth2,9, Francisco Salgado2,10 , Jacqueline Serón2,11, Nicholas B. Suntzeff1, Simón Torres2,12, Alexei V. Filippenko13,14 , Weidong Li13,17, Barry F. Madore4,15 , D. L. DePoy1, Jennifer L. Marshall1 , Jean-Philippe Rheault1, and Steven Villanueva1,16 1 George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USA; [email protected] 2 Carnegie Observatories, Las Campanas Observatory, Casilla 601, La Serena, Chile 3 Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark 4 Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA 5 Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile 6 Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Instituto de Astrofísica de La Plata (IALP), CONICET, Paseo del Bosque S/N, B1900FWA La Plata, Argentina 7 Department of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA 8 Department of Physics, Florida State University, Tallahassee, FL 32306, USA 9 GMTO Corporation, Avenida Presidente Riesco 5335, Suite 501, Las Condes, Santiago, Chile 10 Leiden Observatory, Leiden University, P.O. -
A Classical Morphological Analysis of Galaxies in the Spitzer Survey Of
Accepted for publication in the Astrophysical Journal Supplement Series A Preprint typeset using LTEX style emulateapj v. 03/07/07 A CLASSICAL MORPHOLOGICAL ANALYSIS OF GALAXIES IN THE SPITZER SURVEY OF STELLAR STRUCTURE IN GALAXIES (S4G) Ronald J. Buta1, Kartik Sheth2, E. Athanassoula3, A. Bosma3, Johan H. Knapen4,5, Eija Laurikainen6,7, Heikki Salo6, Debra Elmegreen8, Luis C. Ho9,10,11, Dennis Zaritsky12, Helene Courtois13,14, Joannah L. Hinz12, Juan-Carlos Munoz-Mateos˜ 2,15, Taehyun Kim2,15,16, Michael W. Regan17, Dimitri A. Gadotti15, Armando Gil de Paz18, Jarkko Laine6, Kar´ın Menendez-Delmestre´ 19, Sebastien´ Comeron´ 6,7, Santiago Erroz Ferrer4,5, Mark Seibert20, Trisha Mizusawa2,21, Benne Holwerda22, Barry F. Madore20 Accepted for publication in the Astrophysical Journal Supplement Series ABSTRACT The Spitzer Survey of Stellar Structure in Galaxies (S4G) is the largest available database of deep, homogeneous middle-infrared (mid-IR) images of galaxies of all types. The survey, which includes 2352 nearby galaxies, reveals galaxy morphology only minimally affected by interstellar extinction. This paper presents an atlas and classifications of S4G galaxies in the Comprehensive de Vaucouleurs revised Hubble-Sandage (CVRHS) system. The CVRHS system follows the precepts of classical de Vaucouleurs (1959) morphology, modified to include recognition of other features such as inner, outer, and nuclear lenses, nuclear rings, bars, and disks, spheroidal galaxies, X patterns and box/peanut structures, OLR subclass outer rings and pseudorings, bar ansae and barlenses, parallel sequence late-types, thick disks, and embedded disks in 3D early-type systems. We show that our CVRHS classifications are internally consistent, and that nearly half of the S4G sample consists of extreme late-type systems (mostly bulgeless, pure disk galaxies) in the range Scd-Im. -
USA/Canada: Media Information
MAGAZINE MEDIA INFORMATION 2008 Now in its nineteenth successful year, BBC Focus on Africa Although it continues to broadcast on short-wave the READERSHIP PROFILE Magazine is published quarterly by the BBC World Service, BBC is becoming increasingly available on FM, making it Male 90 and distributed in virtually every English-speaking country easier for people across Africa to tune in to its Female 10 in Africa. programmes. Aged up to 24 8 Aged 25 to 34 28 Aged 35 to 44 36 The magazine enjoys an excellent reputation as it is seen African Heads of State, Ministers and Opposition Leaders Aged 45 or older 28 to represent the high quality associated with the BBC name. are frequently interviewed in BBC programmes for Africa No formal education 0 Using a network of correspondents over the continent, it in seven different languages. Primary education 1 Secondary 33 reflects the unbiased, informative and invaluable reporting University 66 of the BBC. Skilled & Professional 40 THE AUDIENCE Manual Occupation 15 Editorial address Each edition is full of feature articles, news reports and Service Occupation 23 BBC Focus on Africa magazine In a typical week, 60 million adults listen to the BBC Student 14 Bush House photographs covering the continent’s latest political, Housewife/husband 1 in Africa in any language. 19 million of these listen in Unemployed 7 PO Box 76 economic, social, cultural and sporting developments and % of Adults (15+) Strand English. London WC2B 4PH providing a unique picture of Africa today. READERS’ VIEWS United Kingdom • Seen as providing accurate and unbiased information. -
Trash to Treasure: Extracting Cosmological Utility from Sparsely Observed Type Ia Supernovae by Benjamin Ernest Stahl a Disserta
Trash to Treasure: Extracting Cosmological Utility from Sparsely Observed Type Ia Supernovae by Benjamin Ernest Stahl A dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Physics in the Graduate Division of the University of California, Berkeley Committee in charge: Professor Alexei V. Filippenko, Co-chair Associate Professor Daniel Kasen, Co-chair Professor Saul Perlmutter Professor UroˇsSeljak Spring 2021 Trash to Treasure: Extracting Cosmological Utility from Sparsely Observed Type Ia Supernovae Copyright 2021 by Benjamin Ernest Stahl 1 Abstract Trash to Treasure: Extracting Cosmological Utility from Sparsely Observed Type Ia Supernovae by Benjamin Ernest Stahl Doctor of Philosophy in Physics University of California, Berkeley Professor Alexei V. Filippenko, Co-chair Associate Professor Daniel Kasen, Co-chair Type Ia supernovae (SNe Ia) are magnificent explosions in the Cosmos that are thought to result from the thermonuclear runaway of white dwarf stars in multistar systems (see, e.g., Jha et al. 2019, for a recent review). Though the exact details of the progenitor system(s) and explosion mechanism(s) remain elusive, SNe Ia have proven themselves to be immensely valuable in shaping our understanding of the physical laws that govern the evolution of the Universe (i.e., physical cosmology). This value is manifested chiefly in two empirical facts: (i) SNe Ia are incredibly luminous (reaching the equivalent of several billion Suns), and (ii) the relatively similar peak luminosities that all \normal" SNe Ia reach can be further homogenized by exploiting a correlation with the rate of photometric evolution (e.g., Phillips 1993). Together, these facts make SNe Ia excellent extragalactic distance indicators, and their use as such led to the discovery of the accelerating expansion of the Universe (Riess et al. -
Westminsterresearch a Trojan Dragon? CCTV News in English And
WestminsterResearch http://www.westminster.ac.uk/westminsterresearch A Trojan dragon? CCTV news in English and the battle for global influence: 2014-16 Marsh, V. This is an electronic version of a PhD thesis awarded by the University of Westminster. © Ms Vivien Marsh, 2018. The WestminsterResearch online digital archive at the University of Westminster aims to make the research output of the University available to a wider audience. Copyright and Moral Rights remain with the authors and/or copyright owners. Whilst further distribution of specific materials from within this archive is forbidden, you may freely distribute the URL of WestminsterResearch: ((http://westminsterresearch.wmin.ac.uk/). In case of abuse or copyright appearing without permission e-mail [email protected] A Trojan dragon? CCTV news in English and the battle for global influence 2014-16 Vivien Marsh A thesis submitted in partial fulfilment of the requirements of the University of Westminster for the degree of Doctor of Philosophy June 2018 i Abstract China’s official media are nearly a decade into a global expansion programme to challenge the dominance of Anglo-American news organisations and their framing of world events. This research tackles the questions of whether Chinese media abroad deserve to be dismissed as channels for Communist Party propaganda, whether their output has journalistic merit, and whether Chinese journalism has a different character from that of the Anglosphere. The focus is on CCTV-News in English, whose ‘hard news’ output is compared with that of BBC World News TV between 2014 and 2016: previous studies of the channel have concentrated on single regions or events, political strategy or current affairs. -
Gst101 Course Title
NATIONAL OPEN UNIVERSITY OF NIGERIA SCHOOL OF ARTS AND SOCIAL SCIENCES COURSE CODE: GST101 COURSE TITLE: USE OF ENGLISH AND COMMUNICATION SKILLS I 1 GST101 USE OF ENGLISH AND COMMUNICATION SKILLS I COURSE GUIDE GST101 USE OF ENGLISH AND COMMUNICATION SKILLS I Course Team- Prof. I. A. Olaofe (Developer/Writer/Coordinator) - ABU. Dr. I. Akaneme (Coordinator) - UNN NATIONAL OPEN UNIVERSITY OF NIGERIA 2 National Open University of Nigeria Headquarters 14/16 Ahmadu Bello Way Victoria Island, Lagos Abuja Office 5 Dar es Salaam Street Off Aminu Kano Crescent Wuse II, Abuja e-mail: [email protected] URL: www.nou.edu.ng Published by National Open University of Nigeria First Printed 2004 Revised 2013 ISBN: 978-058-108-1 All Rights Reserved 3 GST101 USE OF ENGLISH AND COMMUNICATION SKILLS I CONTENTS PAGE Introduction …………………………………………………. iv What you will Learn in this Course………………………….. iv Course Aims…………………………………………………. iv Course Objectives……………………………………………. iv Working through this Course………………………………... v Course Materials……………………………………………... v Study Units…………………………………………………... vi Textbooks and References…………………………………… vii Presentation Schedule………………………………………... vii Assignment File……………………………………………… vii Assessment…………………………………………………… vii Final Examination and Grading……………………………… vii Course Marking Scheme……………………………………... viii Facilitators/Tutors and Tutorials…………………………….. viii Summary……………………………………………………… viii 4 INTRODUCTION Welcome to GST101- Use of English and Communication Skills I. I can assure you will enjoy studying the course. This course guide is a general overview of the course. It provides you with useful information about the structure of the course. GST101- Use of English and Communication Skills I is a two-credit unit course meant to be taken in the first semester, at the 100 level. The course is available to all students who have registered for any programme at National Open University of Nigeria.