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This finding “has opened interesting possibilities for the development of a vaccine”, researchers at the Pasteur Institute, the national centre for scientific research in France, said in a statement.

Antibodies are the advance guard in the human body’s defence system. They are designed to “mark” a virus or bacterium so that it can be destroyed by immunity cells. Many vaccines, such as those against ’flu, polio and measles, are based on antibodies and use a part of the virus to teach the immune system to identify the invading virus in future. - (Sapa-AFP)

From: Die Burger, 01 December 2004

  • Aids and the South African economy:

South Africa is one of the countries with the highest HIV infection rate (the rate at which the virus spreads) in the world. Statistics show that approximately 10 million South Africans could die of Aids-related diseases within the following 10 years. Most of these victims will be younger than 50 years of age.

These figures indicate that the economy of our country will suffer as a result of the situation surrounding this problem.

Activity 3:

To discuss a statement critically and draw conclusions

[LO 1.7]

Debate the statement given at the bottom of page 12 and refer specifically to the following aspects. Then write a short paragraph about the effect that AIDS has on the economy of a country.

  • health care (depletion of resources)
  • substitution of personnel/training

HELP IN THE STRUGGLE AGAINST HIV

Many organisations worldwide focus on creating awareness of how the virus functions and spreads, as well as on reaching out to victims.

Read the newspaper report printed below on the role of the Mandela Foundation in combating Aids. Make a list of other interest groups / organisations you know of that play a vital role in combating this disease.

help in battle against virus, asks sexwale

Waldimar Pelser

If more than 5 million of our country’s people die of Aids-related causes, we must give new life to the message that we have to combat the HI virus.

This was the recent message from the businessman, Mr Tokyo Sexwale.

In his position as trustee of the Nelson Mandela Foundation, Sexwale expressed his wholehearted support for the foundation’s attempt to persuade thousands of South African volunteers to take up arms in the fight against HIV/Aids.

In this latest campaign under the auspices of past president Nelson Mandela’s 46664 prison number, a call centre has been established where “ordinary men and women” can volunteer their time and skills in the fight against Aids. The telephone number is 08000 46664 and the calls are free. Sexwale emphasised that the problem with HIV/Aids is related to behaviour.

“The government has a huge role to play, but it is not alone in the struggle. We are asking for more hands, in the name of Nelson Mandela,” he said. According to the foundation’s Mr John Samuel, the call centre will refer volunteers to organisations who need more assistance.

The foundation will distribute pamphlets that give details of its projects in taxis, banks and supermarkets. Business giants such as Absa, Old Mutual, Anglo American, BMW and Spar have become involved.

The actor Brad Pitt will appear in a television advertisement that will be screened round about World Aids Day (1 December) to promote the 46664 project.

(Translated from Die Burger, 1 Dec. 2004.)

Assessment

LO 1

GEOGRAPHICAL ENQUIRY

The learner will be able to use enquiry skills to investigate geographical and environmental concepts and processes.

We know this when the learner:

1.1 with guidance, selects and uses sources of useful geographical information [finds sources];

1.2 distinguishes between facts and opinions [works with sources];

1.3 categorises information [works with sources];

1.4 uses an index to find places on global atlas maps [works with sources];

1.6 identifies and explores possible solutions to problems [answers the question];

1.7 demonstrates knowledge and under-standing of the issue through projects, discussion, debate and charts [communicates the answer].

Memorandum

ACTIVITY 1

HIV: virus

Illness caused by HIV virus

ACTIVITY 3

Many people ill – in need of health care

Government must supply resources

Many trained employees die

Companies must replace them – train new staff members

Fewer employees remain – lower production

Fewer resources (money) for other needs such as education, houses, etc.

Questions & Answers

how can chip be made from sand
Eke Reply
is this allso about nanoscale material
Almas
are nano particles real
Missy Reply
yeah
Joseph
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
Lale Reply
no can't
Lohitha
where is the latest information on a no technology how can I find it
William
currently
William
where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
has a lot of application modern world
Kamaluddeen
yes
narayan
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Social sciences: geography grade 5. OpenStax CNX. Sep 23, 2009 Download for free at http://cnx.org/content/col10986/1.2
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