Sports in Africa reflect a complex, colonial history in which recent democratic changes have set out to redistribute wealth, reclaim notions of an African heritage and celebrate diversity. With a growing need to discuss and analyse issues, images and controversies with relevance to both the African and South African contexts, a detailed introduction to the sociology of sport is provided within this, the southern African edition of Sports in society: issues and controversies. This adaptation of the American and international editions provides a meaningful framework and depth of sociological issues, theories, concepts and sporting practices in Africa, and then also particularly South Africa. Inevitably, there are many similarities within this framework to the original text, and it therefore still forms the basis of exploring the dynamic relationship between sports, culture and society. Contents include the following: Diverse sport histories and political dispensations; Knowledge and theories about sports in society; Gender and ideological change; Race and race relations; Economic realities and inequalities; Global trends and affiliations; Media and sports relations; Sports for the future; Sports and development. Sports in society is the definitive text for learning the sociology of sport in context, with extensive revisions so that students in Africa will find the content relevant and understandable in terms of their experiences.

The vulnerability of water resources due to climate change and human activities is globally increasing. The phenomenon of hydrological change is complicated because of the combinations and interactions between natural climate fluctuation, global warming and human activities including changes in land utilization. The impact areas of hydrological changes are also not only within the basin, but reach to the ocean through coastal water exchanges. This book presents contributions focused on integrated water management from headwater to the ocean in a time of climate change and increasing population.

This text examines the environmental setting and resulting phosphorites that formed during the Miocene, one of the major and most recent phosphogenic periods throughout the geological record. Sedimentary phosphate deposits (phosphorites) are of major commercial significance, being one of the world's most important non-renewable resources, and essential in the manufacture of phosphate fertilizers and phosphate based chemicals. An oceanographic perspective is provided by investigations of modern oceanic environments where phosphorites are presently forming. Together, the geologic and marine approaches provide a complete outlook on this important mineral resource. This is the third of four planned reference volumes that together will cover the achievements of the International Geological Correlation Programme Project 156 (Phosphates) during the ten years of the project's existence. As with the previous volumes, this will form an essential work of reference for geologists and mining engineers interested in the search for, and exploitation of, phosphate rock deposits.

Brand new in the popular Oxford Practical Teaching series for teachers, Oxford Practical Teaching: Physical Education for Secondary Schools offers Life Orientation teachers in Grades 8 to 12 practical advice on how to teach Physical Education with absolute confidence. The book offers teachers practical help and support to enable teachers to make their own equipment, and to adapt lessons to suit learners' individual needs.

WebRTC, Web Real-Time Communications, is revolutionizing the way web users communicate, both in the consumer and enterprise worlds. WebRTC adds standard APIs (Application Programming Interfaces) and built-in real-time audio and video capabilities and codecs to browsers without a plug-in. With just a few lines of JavaScript, web developers can add high quality peer-to-peer voice, video, and data channel communications to their collaboration, conferencing, telephony, or even gaming site or application.
New for the Third Edition
The third edition has an enhanced demo application which now shows the use of the data channel for real-time text sent directly between browsers. Also, a full description of the browser media negotiation process including actual SDP session descriptions from Firefox and Chrome. Hints on how to use Wireshark to monitor WebRTC protocols, and example captures are also included. TURN server support for NAT and firewall traversal is also new.
This edition also features a step-by-step introduction to WebRTC, with concepts such as local media, signaling, and the Peer Connection introduced through separate runnable demos.
Written by experts involved in the standardization effort, this book contains the most up to date discussion of WebRTC standards in W3C and IETF. Packed with figures, example code, and summary tables, this book is the ultimate WebRTC reference.
Table of Contents
1 Introduction to Web Real-Time Communications
1.1 WebRTC Introduction
1.2 Multiple Media Streams in WebRTC
1.3 Multi-Party Sessions in WebRTC
1.4 WebRTC Standards
1.5 What is New in WebRTC
1.6 Important Terminology Notes
1.7 References
2 How to Use WebRTC
2.1 Setting Up a WebRTC Session
2.2 WebRTC Networking and Interworking Examples
2.3 WebRTC Pseudo-Code Example
2.4 References
3 Local Media
3.1 Media in WebRTC
3.2 Capturing Local Media
3.3 Media Selection and Control
3.4 Media Streams Example
3.5 Local Media Runnable Code Example
4 Signaling
4.1 The Role of Signaling
4.2 Signaling Transport
4.3 Signaling Protocols
4.4 Summary of Signaling Choices
4.5 Signaling Channel Runnable Code Example
4.6 References
5 Peer-to-Peer Media
5.1 WebRTC Media Flows
5.2 WebRTC and Network Address Translation (NAT)
5.3 STUN Servers
5.4 TURN Servers
5.5 Candidates
6 Peer Connection and Offer/Answer Negotiation
6.1 Peer Connections
6.2 Offer/Answer Negotiation
6.3 JavaScript Offer/Answer Control
6.4 Runnable Code Example: Peer Connection and Offer/Answer Negotiation
7 Data Channel
7.1 Introduction to the Data Channel
7.2 Using Data Channels
7.3 Data Channel Runnable Code Example
7.3.1 Client WebRTC Application
8 W3C Documents
8.1 WebRTC API Reference
8.2 WEBRTC Recommendations
8.3 WEBRTC Drafts
8.4 Related Work
8.5 References
9 NAT and Firewall Traversal
9.1 Introduction to Hole Punching
9.3 WebRTC and Firewalls
9.3.1 WebRTC Firewall Traversal
9.4 References
10 Protocols
10.1 Protocols
10.2 WebRTC Protocol Overview
10.3 References
11 IETF Documents
11.1 Request For Comments
11.2 Internet-Drafts
11.3 RTCWEB Working Group Internet-Drafts
11.4 Individual Internet-Drafts
11.5 RTCWEB Documents in Other Working Groups
11.6 References
12 IETF Related RFC Documents
12.1 Real-time Transport Protocol
12.2 Session Description Protocol
12.3 NAT Traversal RFCs
12.4 Codecs
12.5 Signaling
12.6 References
13 Security and Privacy
13.1 Browser Security Model
13.2 New WebRTC Browser Attacks
13.3 Communication Security
13.4 Identity in WebRTC
13.5 Enterprise Issues
14 Implementations and Uses
INDEX
ABOUT THE AUTHORS

The purpose of this study is to examine a proposal to utilize biological weapons systems in present day military situations. The study is developed around the question: why not employ biological weapons systems, now?

Oxford Practical Teaching: Physical Education for Primary Schools is now available for Life Skills and Life Orientation teachers in Grades 4 to 7. The book provides practical support to teachers in making their own equipment and adapting their PE lessons to suit learners' individual needs. Oxford Practical Teaching: Physical Education for Primary Schools is the ideal how-to guide for Physical Education as prescribed by the CAPS Life Skills and Life Orientation curricula.