Monday, 23 February 2015

Hari Rosalind Franklin & APOSL Birthday 2015


Rosalind Franklin was a scientist who broke the secret of the double helix but her great achievement was stolen from her at a time when women were seen as nothing more than assistants to male scientists.

Born 25 July 1920, APOSL celebrates her birthday together with ours.


Saturday, 4July 2015
B6 Seminar Room, Division of Genetics and Molecular Biology, University Malaya

RSVP here: https://www.facebook.com/events/357776544406695/?ref=4

Thursday, 5 February 2015

Measles: A Deadly Disease With No Cure (An Open Letter To Parents)


Measles: A Deadly Disease With No Cure
An open letter to parents


6 February 2015


Dear Parents In Malaysia,
RE: MEASLES: A DEADLY DISEASE WITH NO CURE
In light of the recent measles outbreak in the USA, allegedly spread from Disneyland, the APOSL Science Club encourages every Malaysian parent to insist on measles vaccination for themselves and their children. It is free for all new born babies in our country but for those who missed that chance, you can ask your trusted doctor about it.
Measles is one of the most infectious diseases known to mankind. It is airborne and a “carrier” who is seemingly healthy can easily spread it while walking in public spaces such as shopping centres through coughing and sneezing. At Disneyland, 59 people contracted the disease. Before global immunisation, an estimated 2.6 million people died from measles a year.
There is no cure for measles but it is highly preventable through vaccination. Measles is more than just red spots on your body. While it is usually harmless, some patients could develop complications which could lead to subacute sclerosing pan-encephalitis (SSPE) and even death. Children and the elderly are two groups of people most at risk.
The best defence against measles is prevention by way of immunisation through vaccination.
Immunisation has been proven safe for decades despite unproven allegations from the anti-vaccine movement. We request parents to be more informed about vaccination and not succumb to fear mondering by certain parties. Please listen to your doctor who approves of vaccination to protect your loved ones.
Read more at: http://www.mayoclinic.org/diseases-conditions/measles/basics/definition/con-20019675


On behalf of the APOSL science club,
Pepper Lim
Dr Chow Su Lin, Paediatrician
Dr Kok Sen Wai, Psychiatric MO.
Dr Alistair Furze, Ph.D Life Sciences
Dr Norliana Khairuddin, Senior Lecturer, Universiti Malaya


PS. Andrew Wakefield who started the controversy of linking MMR vaccines to autism was convicted of falsifying his research and has been barred from practising medicine.

Update: MalayMail Online published it here: http://www.themalaymailonline.com/what-you-think/article/measles-a-deadly-disease-with-no-cure-aposl-science-club

Wednesday, 4 February 2015

Hari Darwin 14.2.15

Pusat Sains Negara
Bilik Watson.

Click for more info: https://www.facebook.com/events/371360799709911/

APOSL Survey 3.0 (Video and results)

We put forth the statements below to Malaysians and recorded their reply only as TRUE, FALSE or DON’T KNOW:
1. Human has never been to the moon
2. You can get AIDS by hugging someone with AIDS
3. Vaccination causes autism
4. Science brings more harm than benefit to humanity
5. *Shark's fin has the same nutrition as your fingernails

This survey was carried via 2 methods; on the streets where we approach them personally and online.

Information for the street survey
Time : 10am to 4pm
Date : 25 January 2015
Location : KL Sentral, Central Market and Masjid Jamek
Method : Be nice, smile and approach random people and ask for their reply on selected statements.
Total respondents : 166

Information for the online survey
Date : 24 to 31 January 2015
Method : 3 sets of Google Forms in 3 languages namely; English, Malay and Chinese, were shared out online. The downside for this method is that we can’t really be sure if the respondents are Malaysians

Total respondents breakdown by language:
English - 67 Respondents
Malay - 118 Respondents
Chinese - 8 Respondents
Total - 193 online respondents

Total samples collected is 359

Sample size, Margin of Error and Confidence Level
a. http://www.robertniles.com/stats/marg...
b. https://www.checkmarket.com/market-re...
c. https://www.surveymonkey.com/blog/en/...

In reference to the websites above and the sample size of 359, the margin of error is 5.3% at the confidence level of 95%

I acknowledged the above calculation is very simplistic and that there are proper methods and mathematics involved that only professional statisticians are able to do.

*Typo error
Mistakes were made during language translation that resulted into 2 versions of statement number 5 as such:

In the English and Malay online survey, the statement is as such:
“Shark's fin has THE SAME nutrition as your fingernails”
It has 185 respondents, making the margin of error 7.35% for a confidence level of 95%

In the Chinese online and Street Survey, the statement reads:
“Shark's fin has MORE nutrition as your fingernails” (174 respondents)
It has 174 respondents, making the margin of error 7.58% for a confidence level of 95%

Both the above statements are different and we shall treat the results as separate.

Demographics
For each of the respondents, we also recorded their age group as such:
a. 13-20
b. 21-30
c. 31-40
d. 41 and above

We also recorded their ethnicity as such:
a. Malay
b. Chinese
c. Indian
d. Others

We admit the ethnic category might create discontentment from the public who might see us as being racist. We understood the risk of being labelled as such. However, after much deliberation on the objectives some of the statements are trying to achieve, we went ahead. We have a hunch the results will show an interesting gap. Do bear in mind that not all the results will necessarily show the ethnic breakdowns, only the selected few which we want the relevant authorities to take note.

At the time of writing, we have yet to tabulate the results, hence we could be dead wrong.

Why are we doing this survey?
Curiosity.

Are we funded?
Nope. Not a single cent.

Are we professional statisticians?
Nope. We wouldn’t even dare refer ourselves as amateur. Think of us as motley crews trying to find out what’s up with Malaysians in terms of basic scientific knowledge

Survey 3.0 detailed breakdowns will be out soon

Friday, 23 January 2015

Science Survey 3.0 Online

Ambil survey ini untuk sains!

https://docs.google.com/forms/d/1P0uoEfPxekKXzaPNFlQkh9xqdTz930XpvAhFb27uPiA/viewform

https://docs.google.com/forms/d/1P0uoEfPxekKXzaPNFlQkh9xqdTz930XpvAhFb27uPiA/viewform


Chinese version: https://docs.google.com/forms/d/1f8ieP2UKRipCho4K-XRD7PCKQf_DKlmnxazgMK9hlOE/viewform



Sunday, 14 December 2014

APOSL Coffee Survey 13.12.14


Background

There have been quite a few cafes sprouting around the Klang Valley lately. It seems to me that KLites enjoy drinking coffee and would not mind paying premium prices for big brand coffees.
I decided to put this to the test. Can KLites tell one coffee from another? Are branded coffees better tasting?

Participants

18 people sampled 6 brands of coffees in a double blind method. Rating 1 (lowest) to 5 (highest).

The Survey

Archana was tasked with filling 7 labelled flasks with 6 types of coffees. Only she knew which flask contained what coffee. Once she poured the coffees for the participants, she left the room.

There were 3 premium brands coffees: Coffee Bean, Starbucks and Coffeeology (a premium coffee supplier  who sponsored a Costa Rica Blend coffee for us). 2 coffee were off-the-shelf brands: Nescafe and Kapal Api. 1 coffee was bought from a local kopitiam (coffee shop).

Coffee Preparation

The coffees that were bought from Coffee Bean, Starbucks, Coffeeology and kopitiam were prepared by the cafes themselves. Nescafe was the instant type and was prepared according to the directions on the packet. Kapal Api was prepared using an espresso maker.

Participants tasted the coffees and rated them between 1 to 5. 1 being lowest while 5 was highest.

Coffee Ranking

  1. Kapal Api 2.83
  2. Nescafe Classic 2.66
  3. Starbucks 2.55
  4. Coffee Bean 2.38
  5. Kopitiam 2.33
  6. Costa Rican Blend 2.22
  7. Nescafe kaw 2.11

Summary

The expensive brands, Coffee Bean, Starbuck and the Costa Rica Blend rated lowest (1) by frequency (mode) while Nescafe and Kapal Api were highest with above slightly average rating (3).

2 participants who indicated they “could tell the difference between coffees” rated (average) the Costa Rica Blend 3.5, Coffee Bean and Starbucks 1.5 respectively. Their top choice was Costa Rica Blend 3.5.

11 participants who indicated they “knew which coffees they liked and disliked” rated the Costa Rica Blend 2, Coffee Bean and Starbucks 2.63. Their top choice was Kapal Api 3.

4 participants who indicated they “could not tell one coffee from another” rated the Costa Rica Blend 1.75, Coffee Bean 1.5 and Starbucks 2.75. Their top choice was Starbucks.

7 participants who indicated they drank coffee daily rated Costa Rica Blend 2.4, Coffee Bean 2 and Starbucks 2.1. They top choice was Nescafe 2.8.