Tag: Mobile Phones and Information Technology

  • Mobile Phone Peacekeeping

    Mobile Phone Peacekeeping

    By David SouthDevelopment Challenges, South-South Solutions

    SOUTH-SOUTH CASE STUDY

    Last month UN secretary-general Ban Ki-moon pointed out the urgent need for interesting and relevant content to attract Africans to the internet. Official statistics can make for grim reading: the continent has less bandwidth than Ireland (World Economic Forum). While it is true Africa is restricted by serious technological and economic disadvantages, African ingenuity, creativity and hard work are bypassing these impediments to get things done nonetheless. While word has got out about the impressive take-up of mobile phones in Africa, the new world of Web 2.0 is also spawning a new generation of inspiring African technology whizzes transforming perceptions and grabbing the world’s attention.

    Alongside the combination of innovation and affordability that has made Africa the fastest growing mobile phone market in the world, there is a home-grown technology boom underway: “African firms are already participating in the forefront of technological developments and investment opportunities,” according to the Africa Competitiveness Report 2007.

    Powerful and easy-to-use Web 2.0 tools are being used by Africans during times of crisis. Among the most innovative are “mash-ups” – a term once used to refer to the musical style of combining two or more song tracks that has come to mean the blending together of various software programmes. These Web 2.0 software mashups combine weather information, maps, webcams, population figures, even restaurant locations – in fact any application that can be easily added to a website. The possibilities are limitless, and this is what is causing so much excitement for development in the South.

    In Kenya, a website called Ushahidi (Swahili for testimony), is using ICT (information and communications technology) and mobile phones to save lives in the post-election violence. People on the ground can send in live situation reports and alerts through the web and mobile phones to the website, which then maps violence in real time.

    According to the site’s originator, Kenyan Ory Okolloh, Ushahidi.com “is a tool for people who witness acts of violence in Kenya in these post-election times. You can report the incident that you have seen, and it will appear on a map-based view for others to see.”

    It has been put together by Kenyan web developer David Kobia (also the developer of Mashada, an online African community), and inspired by African blogger Erik “Hash” Hersman and other Kenyan bloggers and activists.

    At the start of the violence, Okolloh had put out a message for help on the web. “Google Earth supposedly shows in great detail where the damage is being done on the ground,” Okolloh said on the site. “It occurs to me that it will be useful to keep a record of this, if one is thinking long-term. For the reconciliation process to occur at the local level the truth of what happened will first have to come out. Guys looking to do something – any techies out there willing to do a mashup of where the violence and destruction is occurring using Google Maps?”

    The website came together quite quickly: after initial discussions amongst the team of five on January 5, it was live by January 9 (they estimate 40 hours for development and 20 to 30 hours for testing and promotion).

    For others who want to do the same, the key is good relationships, not necessarily technology, the Ushahidi team says. “My advice is to make sure you’re well networked with the right people before something like this is needed,” said Erik Hersman, who runs Afrigadget and White African blogs. “By the time you need a site like Ushahidi, it’s too late to start making connections, it’s time to build … everyone needs the passion to fulfill the vision of the project.”

    And to keep it going is not that time consuming, they say. The largest part of their time is spent keeping in contact with NGOs and a volunteer network in Kenya, and verifying the information.

    “My advice would be to keep things as simple as possible.,” said Kenyan David Kobia. “Mashups are basically methods of relaying data, so simplicity is absolutely key.”

    “The feedback has been phenomenal. Ushahidi’s graphical representation of events illustrates to some degree the magnitude of the events to people outside Kenya. The enormity of the situation can be understood better as events unfold, keeping everyone in the loop with a point of reference – people tend to become apathetic when regular news moves from the front page.”

    Ushahidi has been praised for providing NGOs, the international community and humanitarian agencies with vital information they can use to help people.

    Kobia has also launched a new mashup to promote Kenyan unity called  ihavenotribe.

    AfricaNews.com has also been turning to mobile phones to get the news out on the Kenyan crisis. The agency’s reporters use internet-enabled mobile phones with portable keyboards to transmit photos, video and text for reports. All of it is uploaded to the www.africanews.com website. Some are calling this the first use of mobile phone journalism in Africa.

    Published: February 2008

    Resources

    • Pambazuka News Action Alert blog for Kenya updates.
    • Web 2.0 tools that are for free and how to use them: an excellent resource from San Francisco’s  Techsoup.
    • An excellent set of links to Web 2.0 tools and which ones are free, is here:  directimpactnow.com
    • Mashups.com has the latest news and links to get involved in this new internet phenomenon:
    • Programmable Web: This outstanding website links to all active mashups on the web by category and gives real-time reports on progress and lots of links and support to get started.
    • African Web 2.0: 2007 was a busy year for African Web 2.0 sites, as they have grown in number and sophistication. Here you can see an at-a-glance collage of the sites’ logos and links to them:  flickr.com
    Creative Commons License

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    ORCID iD: https://orcid.org/0000-0001-5311-1052.

    © David South Consulting 2023

  • Help is at Hand for India’s Beleaguered Bus-riders

    Help is at Hand for India’s Beleaguered Bus-riders

    By David South, Development Challenges, South-South Solutions

    SOUTH-SOUTH CASE STUDY

    The website is a simple affair: a distinctive logo sits above a lean-looking booking system that allows users to enter their journey start and end destination, date and then click for available buses and prices. Its simplicity is deceptive: redBus is a smart technological solution to a very complicated problem in India: booking and buying a bus ticket. The service it offers – relief from a chaotic, frustrating and time-consuming task – is transforming the experience of travel in India.

    Based in India’s technology hub of Bangalore (http://en.wikipedia.org/wiki/Bangalore), redBus (redbus.in) is a web start-up begun by young whizzes from technology companies who decided to take a risk and venture out and do something new.

    Back in 2005, redBus’ three founders, all graduates of one of India’s top engineering schools, were working in Bangalore for well-known information technology companies such as IBM, Texas Instruments and Honeywell.

    As they tell the story on their website, it was the difficulty of getting a bus home during the Hindu religious festival of Diwali that prompted the inspiration. The trip was a last-minute decision, and buying bus tickets proved far from easy. On top of failing to get a ticket from various travel agents, journeying around Bangalore meant encountering the city’s traffic gridlock.

    This experience led to the idea of developing a service to book bus tickets over the Internet.

    RedBus quickly evolved into an innovative service offering multiple options to customers. They can call a phone number and speak to a customer service representative or use a mobile phone to book a ticket. RedBus claims to have sold more than 8,000,000 tickets to date.

    Tickets are also delivered to customers in major cities in advance of their travel. Even more conveniently, redBus developed a service called mTicket. It sends the ticket by SMS (mobile phone text message) straight away when a customer makes a booking. The mTicket appears on the display screen of the mobile phone and the customer just has to show their mTicket to the driver to board the bus.

    RedBus uses partnerships to expand their distribution network, and this means redBus tickets can be purchased at more than 75,000 outlets. The company now works with more than 350 bus operators, allowing customers to book tickets on more than 4,500 routes across India.

    The service set out to achieve two goals: create a one-stop shop for ticket purchases, and to make it possible for customers to get tickets when they needed them and not be told they have been sold out.

    Indians were already having success with booking airline tickets online. But nobody else had thought of doing central, online sales for bus tickets before.

    Research was behind redBus’ success. The founders interviewed bus operators, consumers and venture capitalists before setting up the business.

    They then set about writing the code for the Internet service and put together a business plan and presented it to The Indus Entrepreneurs (TiE) (tie.org) – a network of mentors who help young entrepreneurs. With the support in place, they were able to leave their well-paying, secure jobs to start redBus.

    Among the many challenges they faced was changing the mindset of bus operators used to dealing only with travel agents working out of sales offices.

    It also took time for the concept to take off. But as word-of-mouth got around, more people started to use the website. The young team grew from just three to 50 within nine months.

    Their business success, as they describe it, is the result of listening to, and soliciting feedback from their customers. They say it has helped them identify what is going wrong and fix it, and describe their business culture as “learn, implement, grow.” They also have a culture of sharing ideas and mistakes to encourage learning. It seems it is this buzzy, youthful and always-learning business culture that is behind redBus’ success.

    Resources

    1) IDiscoverIndia: A website detailing how to explore India’s vast bus network.Website: http://www.idiscoverindia.com/Travel_Info/india_travel_bus.html

    2) TiE: Fostering Entrepreneurship Globally: The Indus Entrepreneurs (TiE),was founded in 1992 in Silicon Valley by a group of successful entrepreneurs, corporate executives, and senior professionals with roots in the Indus region. TiE’s mission is to foster entrepreneurship globally through mentoring, networking, and education. Dedicated to the virtuous cycle of wealth creation and giving back to the community, TiE’s focus is on generating and nurturing our next generation of entrepreneurs. Website: tie.org

    Creative Commons License

    This work is licensed under a
    Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

    ORCID iD: https://orcid.org/0000-0001-5311-1052.

    © David South Consulting 2021

  • Mobile Phone Microscopes to Revolutionize Health Diagnostics

    Mobile Phone Microscopes to Revolutionize Health Diagnostics

    By David SouthDevelopment Challenges, South-South Solutions

    SOUTH-SOUTH CASE STUDY

    Mobile phone usage has increased hugely across the global South in the past five years. In Africa, the number of mobile phone subscribers reached 545 million in 2013, while there are 3.5 billion mobile phone users in Asia and the Pacific (ITU). Some 93 million people in Africa and 895 million in Asia and the Pacific have mobile phone Internet access (ITU).

    “Every day we are moving closer to having almost as many mobile-cellular subscriptions as people on earth,” Brahima Sanou, Director of the ITU Telecommunication Development Bureau, wrote in its latest report on their growth.

    The number of mobile phone subscriptions in the developing world has surpassed 5 billion and the number in the world as a whole reached 6.8 billion in 2013 (ITU), out of a world population of more than 7.1 billion. This compares to considerably lower numbers of people with access to the Internet: 2.7 billion in the world (ITU).

    While many people in poorer countries have basic versions of mobile phones, the next generation of smartphones has been growing in number as prices come down (http://en.wikipedia.org/wiki/Smartphone). Examples of these smart phones include the BlackBerry, Apple’s iPhone, the Samsung Galaxy, and the Nokia Lumia. Smartphones tend to have enormous computing power and an ability to run complex ‘apps’ or applications – including public transport options, maps, restaurant and store locators, banking services and market information and resources. They can also access the Internet through Wi-Fi, and have camera and video capability.

    What people can do with these feature-packed phones is limited by little other than human imagination. With the ability to store large amounts of data and images, using apps that perform a limitless range of services and tasks, smartphones can be deployed as powerful tools to tackle problems.

    Science fiction sagas have long fantasized about people being able to walk around with small electronic devices that can do immensely powerful tasks, including being a medical diagnostic tool. But this science fiction dream is rapidly becoming reality in the global South.

    Various initiatives and innovators are using mobile phones and smartphones to conduct medical diagnosis and gather data for medical studies in real time.

    Some innovations are even turning smartphones into mobile microscopes.

    Developed by the University of California, Berkeley in the lab of Professor Daniel Fletcher (http://cellscope.berkeley.edu/), the CellScope (cellscope.com) is capable of turning the camera on a cell (mobile) phone into a diagnostic microscope with a magnification of 5x to 60x. Fletcher’s lab has also pioneered work on needle-free injection technology.

    The CellScope can be used for ocular imaging (technologies for visualizing and assessing a range of diseases of the eye) and for detecting tuberculosis, blood-borne diseases and parasitic worms.

    Fletcher is a bioengineer and was impressed with how much mobile phone technology has proliferated across the global South.

    “You don’t have to put in these copper wires (for phone lines) anymore; you have the (cell) towers. It’s big business,” Fletcher told The Scientist Magazine.

    “It’s leaping over the need for infrastructure.”

    Fletcher and his colleagues experimented by attaching extra lenses to smartphones. They then used the phone to image cells that had been stained with fluorescent dyes to make them easier to see. The quality of the image was so good, they were able to diagnose malaria from blood samples and tuberculosis from sputum (spit) samples.

    With the addition of image analyzing software, the phone was able to automatically count the number of Mycobacterium tuberculosis bacilli. They were trying to prove you did not need conventional microscopes to do this sort of diagnostic work.

    Fletcher and his colleagues are currently trialling the technology in Vietnam, India, Cameroon and Thailand.

    “Technology alone doesn’t create effective health care,” Fletcher emphasizes. “It’s got to be part of a context in which the information is captured and validated and is analyzed in the right way, and treatments are then available in response to information.”

    Another group from Toronto General Hospital in Canada (http://www.uhn.ca/corporate/AboutUHN/OurHospitals/Pages/TGH.aspx) has ‘hacked’ an iPhone smartphone by placing a 1 millimeter ball lens on the phone’s camera. Isaac Bogoch, an infectious disease specialist, had been investigating parasitic worm infections in children on Pemba Island off the coast of Tanzania. Along with Jason Andrews of Massachusetts General Hospital, they had been inspired by a report about how a team of researchers from the University of California, Davis had created a simple microscope out of an iPhone with a 1 millimeter lens. This makeshift microscope was used to take pictures of blood smears at a 350 times magnification and giving a 1.5 micron resolution.

    “We thought that was a great idea,” Bogoch told The Scientist Magazine. Bogoch regularly works as part of an international team around the world, often in remote locations.

    “We thought … we could take it to the field and see if it accurately works in a more real-world setting.”

    Inspired, Bogoch got together with his colleagues and created a similar microscope with a 3 millimeter ball lens and then got to work using it to identify soil-transmitted helminth eggs in stool samples in Tanzania. When examining the stool samples of 199 children in a clinical trial using the makeshift microscope, they were able to accurately identify helminth infections in 70 per cent of the cases. They also found the iPhone microscope did very well at spotting eggs of particular parasites, such as 80 per cent of Ascaris lumbricoides infections (http://en.wikipedia.org/wiki/Ascaris_lumbricoides). The success rate dropped significantly, however, when trying to detect whipworm parasites (just over half) and hookworm infections (14 per cent).

    But this is early days and an experiment: “Obviously the results aren’t perfect and there’s definitely room for improvement,” Bogoch admits.

    What stands out is the potential to completely revolutionize health care by continuing to develop the capability of smartphones. With their portability and low cost, they also have the advantage of not needing a trained physician to operate them, according to David Walker, president of the American Society of Tropical Medicine and Hygiene, in The Scientist Magazine.

    One of the many advantages of combining a microscope with a digital smartphone is the ability to take a picture and send it straight away to someone to make a diagnosis.

    Even more exciting, Sebastian Wachsmann-Hogiu at the University of California, Davis (http://cbst.ucdavis.edu/people/sebastian/) is adapting mobile phones to undertake spectroscopy (http://en.wikipedia.org/wiki/Spectroscopy), using diagnostic test software to analyze samples on the spot. This, when successful, would be akin to the capabilities first mooted in the science fiction television and film series Star Trek (startrek.com). In Star Trek, the doctor is able to use a small handheld digital device to quickly diagnose what ails somebody.

    The potential for this technology in the global South is significant. Aydogan Ozcan at the University of California, Los Angeles, who is also working on mobile phone microscopes, believes this is as significant as the dawn of the personal computer: “If you look at the early computers, they were bulky, they were extremely expensive,” he says.

    But now computers “are portable … and almost anyone can afford them. The same thing is going on today (with microscopy). We are miniaturizing our micro- and nano-analysis tools. We’re making them more affordable; we’re making them more powerful.”

    It looks like this science fiction dream will soon become today’s reality.

    Published: July 2013

    Resources

    1) World Telecommunication/ICT Indicators Database. Website: http://www.itu.int/en/ITU-D/Statistics/Pages/stat/default.aspx

    2) HealthMap: HealthMap was founded in 2006 by a team of researchers, epidemiologists and software developers at Boston Children’s Hospital. It is an established global leader in utilizing online informal sources for disease outbreak monitoring and real-time surveillance of emerging public health threats. Website: http://www.healthmap.org/en/

    3) A home-made portable microscope: A design developed in the 1970s by Chinese students who fashioned a microscope from a plastic bottle. Website: http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/artjul00/awscope.html

    4) Ways to make simple homemade microscope lenses. Website: http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/artoct07/jd-lens.html

    Creative Commons License

    This work is licensed under a
    Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

    ORCID iD: https://orcid.org/0000-0001-5311-1052.

    © David South Consulting 2023

  • Digital Mapping to put Slums on the Map

    Digital Mapping to put Slums on the Map

    By David SouthDevelopment Challenges, South-South Solutions

    SOUTH-SOUTH CASE STUDY

    Mobile phones are more and more part of daily life in the South’s slums – even for the poorest people. One result is that it has now become possible to undertake digital mapping initiatives to truly find out who is where and what is actually going on.

    About one-third of the world’s urban dwellers live in slums, and the United Nations estimates that the number of people living in such conditions will double by 2030 as a result of rapid urbanization in developing countries. How to improve their living conditions and raise their standard of living is the big challenge of the 21st century.

    With just over five years until the 2015 deadline to meet the Millennium Development Goals (http://www.undp.org/mdg/), and the current economic downturn reversing some gains, any tool that can make development decisions more precise has to be a benefit.

    People are now turning to the growing penetration of digital technologies into slums and poor areas to find solutions. With mobile phones available across much of the global South, and plans underway to expand access to broadband internet even in poorly served Africa, it is becoming possible to develop a digital picture of a slum area and map its needs and population.

    Put to the right use, this powerful development tool can fast-track the delivery of aid and also better connect people to markets and government services.

    In November, an NGO called Map Kibera (www.mapkibera.org) began work on an ambitious project to digitally map Africa’s largest slum, Kibera in Nairobi, Kenya .

    The partners behind Map Kibera are Humanitarian OpenStreetMap, JumpStart International, WhereCampAfrica, the Social Development Network, Pamoja Trust, Hands on Kenya and others.

    Estimates place the number of residents in Kibera at one million, but nobody really knows how many live there (UN-HABITAT). The slum is typical of such deprived areas, lacking in health and water resources and plagued by chaotic traffic and housing. Few fully grasp where everything is in the sprawl.

    While data does exist on the slum, it is not shared or collated into one source. The Map Kibera project uses an open-source software programme, OpenStreetMap (http://www.openstreetmap.org/), to allow users to edit and add information as it is gathered. This information is then free to use by anybody wanting to grasp what is actually happening in Kibera: residents, NGOs, private companies and government officials.

    This will literally put Kibera on Kenya’s map.

    The mapping team started with 12 young people recruited in Kibera to start the work in November of this year. They will be trained and also receive support from the growing Nairobi technology community.

    “The project will provide open-source data that will help illustrate the living conditions in Kibera,” said Map Kibera’s Mikel Maron. “Without basic knowledge of the geography of Kibera it is impossible to have an informed discussion on how to improve the lives of residents of Kibera.”

    Workshops will communicate with local residents and show them the findings available from the map. Paper maps will be distributed to residents and then updated as new information comes in. It is critical local people are kept informed to build trust and avoid conflict. As can be seen from the Google Street Views (http://www.google.co.uk/help/maps/streetview/) controversy, nobody likes to be mapped without their permission or consent.

    Like Kenya, Brazil has a long history of sprawling slums sprouting around its cities. Called favelas, they are complex places, with both rudimentary dwellings and elaborate mansions. Walking into a favela can be a journey through the dreams and aspirations of generations of people, often reflected in their dwellings. Favelas have many services, including hospitals, and there are restaurants and coffee shops. In short, while they are not in the official development plans, the favelas are vibrant economic entities and home to hundreds of thousands of people.

    But since they are chaotic and undocumented by official maps, the economic and social development of the favelas is hindered as even basic services like mail delivery are difficult to provide.

    An NGO called Rede Jovem (http://www.redejovem.org.br/) is deploying youths armed with GPS (global positioning system)-equipped (http://en.wikipedia.org/wiki/Global_Positioning_System) mobile phones to map the favelas of Rio de Janerio. To start with, they are mapping five favelas: Complexo do Alemão, Cidade de Deus, Morro do Pavão-Pavãozinho, Morro Santa Marta and Complexo da Maré.

    “The main goal was to mark public interest spots on a map and show places like schools and institutions and hospitals and restaurants,” Natalia Santos, the executive coordinator for Rede Jovem, told MobileActive (www.mobileactive.org) . “We wanted to spread the news about what slums do have, so all the people can get to know that the slum is not just a place for violence and marginality and robbery.”

    The mapping process works like this: the mappers physically travel around the favela and upload information on each, individual landmark (restaurants, roads etc.) as they go. They use Nokia N95s mobile phones that are connected to Google Maps (www.maps.google.com).

    According to Santos, reporters enter the information on the map displayed on the phone, and they can video or photograph to add more detail. They are using Wikimapa (www.wikimapa.org.br), and Twitter (www.twitter.com) to log the information.

    As Rede Jovem recruited young mappers, they discovered an interesting fact: the male reporters (aged between 17 and 25) were frightened to enter a favela with a mobile phone for fear of either being mugged or being stopped by the police. Because of this fact, all the mappers are young women.

    They are ambitious for the future despite their funds running out in December. “We want everyone who has a cell phone with GPS to be a wikireporter,” said Santos .

    How important it is to the favela residents to be recognised like this can’t be overstated. “I think they are very happy because they’re seeing that they exist,” said Santos. “And the mailman says that now he can deliver the mail.”

    Published: December 2009

    Resources

    • Mobile Active.org: MobileActive.org is a community of people and organizations using mobile phones for social impact. They are committed to increasing the effectiveness of NGOs around the world who recognize that the over 4 billion mobile phones provide unprecedented opportunities for organizing, communications, and service and information delivery. Website: http://www.mobileactive.org
    • Google Android: Get inventing! This software enables anyone to start making applications for mobile phones. And it offers a platform for developers to then sell the applications to others. Website: http://www.android.com/
    • Ushahidi: is a website that was developed to map reports of violence in Kenya after the post-election fallout at the beginning of 2008. The new Ushahidi Engine is being created to use the lessons learned from Kenya to create a platform that allows anyone around the world to set up their own way to gather reports by mobile phone, email and the web – and map them. It is being built so that it can grow with the changing environment of the web, and to work with other websites and online tools. Website: http://blog.ushahidi.com/
    • Textually.org: is the entry point of three weblogs devoted to cell phones and mobile content, focusing on text messaging and cell phone usage around the world, tracking the latest news and social impact of these new technologies. Website: http://www.textually.org/
    • Betavine Social Exchange has launched. It’s a matching site for NGOs looking for mobile solutions, and developers who can help build them, all brought to you by Vodafone. Website: http://www.betavine.net

    Citations

    Resilient Urban Regeneration in Informal Settlements in the Tropics: Upgrading Strategies in Asia and Latin America, Publisher: Springer Singapore (2020)

    The story first appeared in the UN e-newsletter Development Challenges, South-South Solutions in 2009. It was simultaneously published on the Vancouver, Canada-based crowd-powered news website, NowPublic. It was then published in the UN magazine Southern Innovator.

    Streets as Tools for Urban Transformation in Slums: A Street-led Approach to Citywide Slum Upgrading, Publisher: United Nations Human Settlements Programme (UN-Habitat) (2012)

    Other Stories on Mapping

    https://davidsouthconsulting.org/2021/08/28/african-entrepreneur-wants-to-bring-order-to-urban-chaos/

    https://davidsouthconsulting.org/2020/12/04/big-data-can-transform-the-global-souths-growing-cities/

    https://davidsouthconsulting.org/2021/03/04/indian-id-project-is-foundation-for-future-economic-progress/

    https://davidsouthconsulting.org/2022/10/31/mapping-beirut-brings-city-to-light/

    https://davidsouthconsulting.org/2022/10/17/mapping-to-protect-kenyas-environment-the-emazingira-solution/

    https://davidsouthconsulting.org/2021/03/31/new-weapon-against-crime-in-the-south/

    By 2014, Southern Innovator had published five issues and become a recognised global innovation brand.

    https://davidsouthconsulting.org/2021/03/05/southern-innovator-issue-4/

    Follow @SouthSouth1

    Slideshare: http://www.slideshare.net/DavidSouth1/development-challengessouthsouthsolutionsnovember2010issue

    Southern Innovator Issue 1: https://books.google.co.uk/books?id=Q1O54YSE2BgC&dq=southern+innovator&source=gbs_navlinks_s

    Southern Innovator Issue 2: https://books.google.co.uk/books?id=Ty0N969dcssC&dq=southern+innovator&source=gbs_navlinks_s

    Southern Innovator Issue 3: https://books.google.co.uk/books?id=AQNt4YmhZagC&dq=southern+innovator&source=gbs_navlinks_s

    Southern Innovator Issue 4: https://books.google.co.uk/books?id=9T_n2tA7l4EC&dq=southern+innovator&source=gbs_navlinks_s

    Southern Innovator Issue 5: https://books.google.co.uk/books?id=6ILdAgAAQBAJ&dq=southern+innovator&source=gbs_navlinks_s

    Creative Commons License

    This work is licensed under a
    Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

    ORCID iD: https://orcid.org/0000-0001-5311-1052.

    © David South Consulting 2022