scholarly journals Who Can Find My Devices? Security and Privacy of Apple’s Crowd-Sourced Bluetooth Location Tracking System

2021 ◽  
Vol 2021 (3) ◽  
pp. 227-245
Author(s):  
Alexander Heinrich ◽  
Milan Stute ◽  
Tim Kornhuber ◽  
Matthias Hollick
Keyword(s):  
Urban Areas ◽  
Tracking System ◽  
Security And Privacy ◽  
Location Tracking ◽  
Unauthorized Access ◽  
The Past ◽  
Correlation Attack ◽  
Approximate Location ◽  
History Of ◽  
Closed Source

Abstract Overnight, Apple has turned its hundreds-of-million-device ecosystem into the world’s largest crowd-sourced location tracking network called o~ine finding (OF). OF leverages online finder devices to detect the presence of missing o~ine devices using Bluetooth and report an approximate location back to the owner via the Internet. While OF is not the first system of its kind, it is the first to commit to strong privacy goals. In particular, OF aims to ensure finder anonymity, prevent tracking of owner devices, and confidentiality of location reports. This paper presents the first comprehensive security and privacy analysis of OF. To this end, we recover the specifications of the closed-source OF protocols by means of reverse engineering. We experimentally show that unauthorized access to the location reports allows for accurate device tracking and retrieving a user’s top locations with an error in the order of 10 meters in urban areas. While we find that OF’s design achieves its privacy goals, we discover two distinct design and implementation flaws that can lead to a location correlation attack and unauthorized access to the location history of the past seven days, which could deanonymize users. Apple has partially addressed the issues following our responsible disclosure. Finally, we make our research artifacts publicly available.

Modern Pentecostalism as an Urban Phenomenon: The Case of the Family of God Church in Zimbabwe

Exchange ◽  
2005 ◽  
Vol 34 (4) ◽  
pp. 349-375 ◽  
Author(s):  
Lovemore Togarasei
Keyword(s):  
Urban Areas ◽  
Growth And Development ◽  
Urban Residents ◽  
The Past ◽  
Pentecostal Movement ◽  
Family Of God ◽  
The Family ◽  
History Of ◽  
The Church

AbstractThe past twenty to thirty years in the history of Zimbabwean Christianity have witnessed the emergence of a new breed of Pentecostalism that tends to attract the middle and upper classes urban residents. This paper presentsfindings from a case study of one such movement, the Family of God church. It describes and analyses the origins, growth and development of this church as an urban modern Pentecostal movement. Thefirst section of the paper discusses the origins and development of the church focusing on the life of the founder. The second section focuses on the teaching and practices of the church. The church's doctrines and practices are here analysed tofind out the extent to which these have been influenced by the socio-political and economic challenges in the urban areas. The paper concludes that the modern Pentecostal movement is meant to address urban needs.

scholarly journals Intellectual disability in India: the evolving patterns of care

2011 ◽  
Vol 8 (2) ◽  
pp. 29-31
Author(s):  
Satish Chandra Girimaji
Keyword(s):  
Intellectual Disability ◽  
Urban Areas ◽  
Epidemiological Data ◽  
World Health ◽  
Indian Literature ◽  
Middle Income ◽  
The Past ◽  
History Of ◽  
Health Organization ◽  
Government Benefits

Intellectual disability was recognised in ancient Indian literature, but organised services have a history of just five decades. India shares many features of low- and middle-income (LAMI) countries regarding intellectual disability. There is a low level of awareness about its nature, causes and interventions. One can come across many superstitions, myths and misconceptions about intellectual disability. In general, services are inadequate, being concentrated in big cities and urban areas. There is generally limited access to support services and few government benefits, and these, in any case, are often of little value (World Health Organization, 2007). Locally and nationally, there are few relevant and reliable epidemiological data on the prevalence of intellectual disability. However, there have been some positive developments within the past three decades, and they are the focus of this paper.

scholarly journals Impact of Air Pollutants on Agricultural Crops

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Alok Singh Jayara
Keyword(s):  
Urban Areas ◽  
Air Pollutants ◽  
Canopy Temperature ◽  
Crop Plants ◽  
Health It ◽  
The Past ◽  
History Of ◽  
The Impact ◽  
Motorized Transport ◽  
Particulate Matter Pollution

History of mankind has witnessed transformation in form of industrialization, urbanization and motorized transport in the past. These all had made the life easier for human but these also led to increase in level of pollutants in the atmosphere. These pollutants have cascading impact on agriculture. The impact of some of the major pollutants such as SO2, NOx and ozone is in the form of production of ROS, reduced photosynthesis and energy metabolism. The aerosol and particulate matter pollution also leads to reduced transpiration which raises the canopy temperature and also disturbs the water and nutrient uptake by the crop plants. To date most of the pollution related studies, especially in developing countries, are restricted to its impact on urban areas and human health. It is needed to extend these studies to impact of air pollution on agriculture. In this paper we have discussed the various mechanisms through which the pollutants act on the crop plants and their impact on yield.

On The Possibility of an Autonomous History of Modern Southeast Asia

1961 ◽  
Vol 2 (2) ◽  
pp. 73-105 ◽  
Author(s):  
John R. W. Small
Keyword(s):  
Southeast Asia ◽  
Contemporary History ◽  
The Past ◽  
History Of

It is generally accepted that history is an element of culture and the historian a member of society, thus, in Croce's aphorism, that the only true history is contemporary history. It follows from this that when there occur great changes in the contemporary scene, there must also be great changes in historiography, that the vision not merely of the present but also of the past must change.

Stellar Evolution

1962 ◽  
Vol 11 (02) ◽  
pp. 137-143
Author(s):  
M. Schwarzschild
Keyword(s):  
Solar System ◽  
Stellar Evolution ◽  
Space Craft ◽  
New Techniques ◽  
Substantial Body ◽  
Individual Stars ◽  
The Past ◽  
Evolution Of Galaxies ◽  
History Of ◽  
Fast Flow

It is perhaps one of the most important characteristics of the past decade in astronomy that the evolution of some major classes of astronomical objects has become accessible to detailed research. The theory of the evolution of individual stars has developed into a substantial body of quantitative investigations. The evolution of galaxies, particularly of our own, has clearly become a subject for serious research. Even the history of the solar system, this close-by intriguing puzzle, may soon make the transition from being a subject of speculation to being a subject of detailed study in view of the fast flow of new data obtained with new techniques, including space-craft.

A 200-Year History of the Study of Childhood Language Disorders of Unknown Origin: Changes in Terminology

2020 ◽  
Vol 5 (1) ◽  
pp. 6-11 ◽  
Author(s):  
Laurence B. Leonard
Keyword(s):  
Language Impairment ◽  
Specific Language Impairment ◽  
Scientific Literature ◽  
Language Disorder ◽  
Language Disorders ◽  
Unknown Origin ◽  
Developmental Language Disorder ◽  
The Past ◽  
History Of ◽  
The Many

Purpose The current “specific language impairment” and “developmental language disorder” discussion might lead to important changes in how we refer to children with language disorders of unknown origin. The field has seen other changes in terminology. This article reviews many of these changes. Method A literature review of previous clinical labels was conducted, and possible reasons for the changes in labels were identified. Results References to children with significant yet unexplained deficits in language ability have been part of the scientific literature since, at least, the early 1800s. Terms have changed from those with a neurological emphasis to those that do not imply a cause for the language disorder. Diagnostic criteria have become more explicit but have become, at certain points, too narrow to represent the wider range of children with language disorders of unknown origin. Conclusions The field was not well served by the many changes in terminology that have transpired in the past. A new label at this point must be accompanied by strong efforts to recruit its adoption by clinical speech-language pathologists and the general public.

Suicidal Ideation Among Medical Students in Dammam, Saudi Arabia

Crisis ◽  
2020 ◽  
pp. 1-6
Author(s):  
Mohammed Madadin ◽  
Ritesh G. Menezes ◽  
Maha A. Alassaf ◽  
Abdulaziz M. Almulhim ◽  
Mahdi S. Abumadini ◽  
...  
Keyword(s):  
Saudi Arabia ◽  
Medical Students ◽  
Suicidal Ideation ◽  
General Health Questionnaire ◽  
Cross Sectional Study ◽  
Eastern Province ◽  
Cross Sectional ◽  
The Past ◽  
Depression Subscale ◽  
History Of

Abstract. Background: Medical students are at high risk of suicidal ideation. Aim: We aimed to obtain information on suicidal ideation among medical students in Dammam located in the Eastern Province of Saudi Arabia. Method: This cross-sectional study was conducted at the College of Medicine affiliated with Imam Abdulrahman Bin Faisal University in the Eastern Province of Saudi Arabia. Suicidal ideation in the past 12 months was assessed based on responses to four questions in the depression subscale of the General Health Questionnaire 28 (GHQ-28). In addition, data were collected to examine the association of suicidal ideation with various factors. Results: We found that 1 in 3 medical students in the study had suicidal ideation in the past 12 months, while around 40% had lifetime suicidal ideation. Suicidal ideation was associated with feelings of parental neglect, history of physical abuse, and dissatisfaction with academic performance. Limitations: The cross-sectional nature of this study limits its ability to determine causality regarding suicidal ideation. Conclusion: These rates are considerably high when compared with rates from studies in other countries around the world. This study provides a reference in the field of suicidology for this region of Saudi Arabia.

Post-Soviet economy development: From the past to the future

2017 ◽  
pp. 5-21 ◽  
Author(s):  
E. Yasin
Keyword(s):  
Present Situation ◽  
Soviet Economy ◽  
Market Reforms ◽  
Democratic Development ◽  
The Past ◽  
Current Period ◽  
The Future ◽  
History Of ◽  
Working Out ◽  
A Current

The article is devoted to major events in the history of the post-Soviet economy, their influence on forming and development of modern Russia. The author considers stages of restructuring, market reforms, transformational crisis, and recovery growth (1999-2011), as well as a current period which started in2011 and is experiencing serious problems. The present situation is analyzed, four possible scenarios are put forward for Russia: “inertia”, “mobilization”, “decisive leap”, “gradual democratic development”. More than 30 experts were questioned in the process of working out the scenarios.

EPITAFIES OF THE RELATIVES OF HADJI IBRAHIM AL-URADI AS A SOURCE ON THE BIOGRAPHY OF THE SCIENTIST AND ON THE HISTORY OF GIDATL

2017 ◽  
Vol 13 (4) ◽  
pp. 13-21
Author(s):  
Sh M Khapizov ◽  
M G Shekhmagomedov
Keyword(s):  
18Th Century ◽  
Medieval History ◽  
Historical Sources ◽  
The Past ◽  
Arabic Script ◽  
History Of ◽  
History Of Culture ◽  
The Look ◽  
Cultural Monuments ◽  
Written Sources

The article is devoted to the study of inscriptions on the gravestones of Haji Ibrahim al-Uradi, his father, brothers and other relatives. The information revealed during the translation of these inscriptions allows one to date important events from the history of Highland Dagestan. Also we can reconsider the look at some important events from the past of Hidatl. Epitaphs are interesting in and of themselves, as historical and cultural monuments that needed to be studied and attributed. Research of epigraphy data monuments clarifies periodization medieval epitaphs mountain Dagestan using record templates and features of the Arabic script. We see the study of medieval epigraphy as one of the important tasks of contemporary Caucasian studies facing Dagestani researchers. Given the relatively weak illumination of the picture of events of that period in historical sources, comprehensive work in this direction can fill gaps in our knowledge of the medieval history of Dagestan. In addition, these epigraphs are of great importance for researchers of onomastics, linguistics, the history of culture and religion of Dagestan. The authors managed to clarify the date of death of Ibrahim-Haji al-Uradi, as well as his two sons. These data, the attraction of written sources and legends allowed the reconstruction of the events of the second half of the 18th century. For example, because of the epidemic of plague and the death of most of the population of Hidatl, this society noticeably weakened and could no longer maintain its influence on Akhvakh. The attraction of memorable records allowed us to specify the dates of the Ibrahim-Haji pilgrimage to Mecca and Medina, as well as the route through which he traveled to these cities.

Ale na razie tu cisza” – fotografie sprzed katastrofy w wybranych zapisach literackich (Stefan Chwin, Ryszard Kapuściński, Wisława Szymborska)

2020 ◽  
pp. 65-80
Author(s):  
Magdalena Strąk
Keyword(s):  
Time Perspective ◽  
Terrorist Attack ◽  
First World War ◽  
General Concept ◽  
Literary Texts ◽  
World War ◽  
The Past ◽  
The First World War ◽  
History Of ◽  
First World

The work aims to show a peculiar perspective of looking at photographs taken on the eve of the broadly understood disaster, which is specified in a slightly different way in each of the literary texts (Stefan Chwin’s autobiographical novel Krótka historia pewnego żartu [The brief history of a certain joke], a poem by Ryszard Kapuściński Na wystawie „Fotografia chłopów polskich do 1944 r.” [At an exhibition “The Polish peasants in photographs to 1944”] and Wisława Szymborska’s Fotografia z 11 września [Photograph from September 11]) – as death in a concentration camp, a general concept of the First World War or a terrorist attack. Upcoming tragic events – of which the photographed people are not yet aware – become for the subsequent recipient an inseparable element of reality contained in the frame. For the later observers, privileged with time perspective, the characters captured in the photograph are already victims of the catastrophe, which in reality was not yet recorded by the camera. It is a work about coexistence of the past and future in the field of photography.

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