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Lewensoriëntering

Graad 8

Sosiale ontwikkeling en loopbaanoriëntering

Module 27

Die oorsake van bepaalde siektes in terme van omgewings-faktore

Aktiwiteit 1:

Om die oorsake van bepaalde siektes in terme van omgewings-faktore te bespreek, asook stappe wat in die verband geneem is en nog geneem kan word

[LU 1.1, 1.2, 1.4]

Die volgende boodskappe is op die Internet gevind:

  • Los die wasem, haal diep asem!
  • Wees taai om rook te versmaai!
  • Rook verswak die gesondheid van kinders.

Ons het ‘n reg op skoon water

Omdat besoedelde, toksiese water

Die gesondheid van

Ons self, familie, toekomstige geslagte

En die planeet

Bedreig.

ons het ‘n verantwoordelikheid -

individu, staat

besigheid en industrie

om ons water vry te hou van gifstowwe

en om ons

drinkwater, vis en strande

te beskerm

  • Som die boodskappe in een sin tot ‘n enkele boodskap op. Jou boodskap moet die volgende woorde bevat: reg, verantwoordelikheid, gesondheid, omgewing.
  • Vra jou onderwyser om julle almal die geleentheid te gee om julle boodskap aan die klas voor te dra. Formuleer dan as klas ‘n boodskap wat julle by die skool en selfs in die omgewing van die skool kan versprei. Onthou: hoe korter die boodskap, hoe kragtiger!
  • Wat is die klas se boodskap?
  • Ons drie gevreesde siektes: MIV/VIGS, tuberkulose en malaria

Daar is verskeie siektes wat ons as mense vrees, byvoorbeeld kanker. Daar is egter ‘n bepaalde rede hoekom ons VIGS, tuberkulose en malaria hier as gevreesde siektes uitsonder: hulle kan oor groot dele van ons land versprei en ‘n groot deel van die bevolking aantas. So ‘n siekte is dan ‘n pandemie .

1. MIV/VIGS

  • Waarvoor staan MIV en VIGS?
  • MIV staan vir Menslike Immuniteitsgebrekvirus
  • VIGS staan vir Verworwe Imuniteitsgebreksindroom
  • Wat is MIV en VIGS?
  • Die infeksie begin met die MIV wat deur liggaamsvloeistowwe soos bloed, manlike semen, vroulike vaginale vloeistof en borsmelk oorgedra word.
  • Die virus word dan met die bloedstroom vervoer en dring die liggaamselle binne. Daarna help die liggaamselle die virus om te vermeerder, die nuwe virusse verlaat die sel en besmet ander selle.
  • ‘n Besmette sel kan nie weerstand bied teen ander infeksies en siektes nie.
  • VIGS dui op die toestand wat ontstaan as die liggaam deur verskeie siektes geïnfekteer is en die liggaam nie weerstand teen hulle kan bied nie.
  • Hoe kan MIV besmetting voorkom word?

Deur

  • ‘n gesonde leefstyl, en
  • deurdat oordrag van die moeder na die kind voorkom word.
  • Kan mense wat VIGS het gehelp word?
  • In die eerste plek moet mense bereid wees om hulself te laat toets. Dit kan deur privaatdokters, klinieke, hospitale of laboratoriums gedoen word.
  • Sodanige toetsing behoort met doeltreffende raadgewing gepaard te gaan. Sulke dienste bestaan oral in Suid-Afrika.
  • Mense met VIGS kan ‘n produktiewe lewe lei deur ‘n gesonde dieet met baie proteïne en energie (kilojoules) te volg, hulle stresvlakke te beheer, skoon water te drink, hul hande skoon te hou en vinnig behandeling vir siektes wat hulle mag opdoen, te ontvang. Katte moet vermy word (hulle dra kieme).

Vrae:

a) Skryf neer wat ‘gesonde leefstyl’ beteken.

Questions & Answers

can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
Kim
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Al
y=10×
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
is it 3×y ?
Joan Reply
J, combine like terms 7x-4y
Bridget Reply
im not good at math so would this help me
Rachael Reply
yes
Asali
I'm not good at math so would you help me
Samantha
what is the problem that i will help you to self with?
Asali
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Lewensorientering graad 8. OpenStax CNX. Sep 12, 2009 Download for free at http://cnx.org/content/col11047/1.1
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