SlideShare a Scribd company logo
1 of 67
Download to read offline
Research methodology
Dr Woon Kai Lin
ph7klw76@um.edu.my;
Room A320, Block A, Phys Dept; Tel:
03-79674287
Why you want to do research?
• REASONS you want to do research
List down 5 reasons why you want to do research
How does research feel like?
“A scientist in his laboratory is not a mere technician: he is
also a child confronting natural phenomena that impress him
as though they were fairy tales.‖-Marie Curie
Exciting
(EUREKA!)
Additive
Potential
to change
the world
FUN
Difficult
FrustratingRESEARCH
What is research?
• Research is the search for new knowledge
by scientific methods and/or finding new
applications with new found knowledge.
What is a scientific method?
Scientific method
Gathering
Data via experimentation
&
observation
Formulating
&
Hypothesize
&
testing
Logical
reasoningLaw of nature
Interpreting
data
unbiased
Peer review of results
and methodology
Duplicable
predicting
Scientific Process
• Define the question
• Gather information and resources (observe)
• Form hypothesis
• Perform experiment and collect data
• Analyze data
• Interpret data and draw conclusions that serve
as a starting point for new hypothesis
• Publish results
• Retest (frequently done by other scientists)
What is a good research?
IMPORTANT
PRACTICAL
RAMIFACTION
SIGNIFICANT
INTELLECTUAL
CONTENT
BEST
BUT
―Scientific discovery and scientific knowledge have been achieved only by those
who have gone in pursuit of it without any practical purpose whatsoever in view.‖-
Max Planck
I want to build a time-machine, it is
a ‗great research problem‘ but……
Research
Problem
A good research problem must have an ATTACK.
Without ATTACK, you will not able to solve the problem.
“The worthwhile problems are the ones you can really solve or help solve, the ones
you can really contribute something to”- Richard Feynman
How do find a good research
problem?
Good research
problem
RESEARCH
TALK TO
EXPERT
READ
ATTENDING
SEMINAR
This assumes that you have had a good starting point for your
research. This is often the responsibility of your advisor.
READ, READ, READ
READ SELECTIVELY, if not you will
experience information overload
How to read?
• Feature and review articles best place to
start research on a new topics.
• Look at the papers published in high
impact journals and highly cited
papers.
• It is very important to have questions in
your mind which you think reading journals
would help you to find the answers or
make the questions clearly.
Reading old books and papers
Graphite is a conductor
According to text book
Graphene
Recently…..
Graphene can be semiconductor too!!!!
If possible read latest books/journals
Highly cited papers
www.isiknowledge.com/ Search organic electronics and sorted by time cited
What is impact factor ?
• Citation of a given journals. A measure of
relative importance of the journal within its field.
All Journals
http://www.sciencegateway.org/rank/index.html
Material science
How to solve a research
problem?
• Expose and challenge hidden
assumption.
assumption
Simplify
conversation
It happens
too often
Everyone
should have
known
“Conclusion is as good as assumption used to reach there.”- Tom Chalko
misconception
Belief system
Case study: Expose and challenge
hidden assumptions
Fact
1. That the stars, sun, and planets appear to revolve
around the Earth each day.
2. Common sense perception that as the Earth is solid
and stable it is not moving—but is at rest
Earth is in the centre of the Universe
It is assumed and believed to be true because of it is
common sense.
Case study: Expose and challenge
hidden assumptions
Galileo
Jupiter
The stars just appear and disappear from the background
with respect to Jupiter?
Venus
Why Venus changes shape?
Case study: Expose and challenge
hidden assumptions
Galileo
Challenge the view that the Earth is not the centre of the
Universe. The belief is so deeply rooted that no one believe
him at that time.
How to solve a research
problem?
• Treat inconsistencies as opportunities
INCONSISTENCY
Instrumentation?
Misconception?
Belief system?
Assumptions?
New law of physics?
You must have a good tolerance of the ambiguity
Case study: Treat inconsistencies
as opportunities
If the earth is not the center of the universe, the
earth must be ‗flying‘ across space but why the
earth is not moving and appear solid?
There is an inconsistency with Galileo
conclusion. Because of that lots of people think
that Galileo was incorrect.
Case study: Treat inconsistencies
as opportunities
• Newton noticed the inconsistencies and he
delved deeply in the matter.
And hence
Newton's law of universal gravitation
“Inspiration comes from the prepared mind”
How to solve a research
problem?
• Investigate anomalies
anomalies
New discovery?
Procedure error?
Instrumental
Error?
Great discovery often happened by accidents.
Don't kick it under the workbench.
Construct an example or experiment to emphasize
the anomaly and bring it into clear view
Accident?
Case study: Investigate anomalies
• In 1928 Fleming left the lid off the top of
one of his Petri dishes.
• He went for vacation
• He returned and notice…….
FUNGUS
(contamination)
Bacteria Fleming trying to
grow in agar dish
(Staphylococcus )
Case study: Investigate anomalies
• Lucky Fleming is observant enough that he
didn‘t through away as he saw regions without
Fungus!!
• Fleming concluded that the mould was releasing
a substance that was repressing the growth of
the bacteria
• He grew a pure culture and discovered that it
was a Pencillium ( the most powerful antibiotic
for curing serious disease)
How to solve a research
problem?
• Examine extreme cases.
You can learn a lot about a problem by pushing it to
extremes. Make numbers big, small, zero, equal to each
other, etc., to see what you can learn. These special cases
may expose what the solution looks like around the
edges.
Seek simplicity and distrust it
• The law of nature is governed by simple laws.
Most amazing equations are often the simplest.
maFmcE 2
•But in REAL world, the law of physics are often
interacting on each other, a simplistic view often
doesn‘t describe the real word.
Making others research papers
obsolete
• ―The value of a paper is related to the number of
earlier papers that it renders obsolete‖- Hilbert
Displace previous work by introducing new points of view
,developing new techniques, refining thought processes and
etc
Build doors and bridges
• The real value of an advance or solution is the
number of doors that it opens for future
research.
Developed in 1947 at Bell Labs by
Shockley, Brattain, and Bardeen
Modern
Electronics
and advanced
material and
methodology for
Semiconducting
research
Reinventing a better wheel
• Don‘t reinvent the wheel since it wastes time and
resources.
• But if you found yourself doing something very
similar to others, go beyond other researchers'
work by putting your individual perspective, any
specialized tools you develop along the way.
Improve upon it.
―Great discoveries and improvements invariably involve the cooperation of many
minds. I may be given credit for having blazed the trail, but when I look at the
subsequent developments I feel the credit is due to others rather than to myself.‖ –
Alexander Graham Bell
Case study: Reinventing a better
wheel
WIRELESS ENERGY TRANSFER
Tesla intended for the tower to demonstrate how the ionsphere could
be used to provide free electricity to everyone without the need for
power lines. Project not completed because of the lack of funding
1900s
Case study: Reinventing a better
wheel
Martin Soljačić from MIT,
along with a lab
demonstration of their
technology — used here to
light a 60 W bulb
Efficient transfer energy transfer over long distance in
the presence of extraneous environmental objects.
New discoveries are marginal at
first.
• The first light bulb only burned for a few
seconds. Some may conclude it is useless but
others might see it as a first step for light at
night.
• Realize that new ideas and results are often
weak at first, and they need to be nurtured and
defended in order to compete with established
techniques and vested interests. That takes
courage and perseverance
Studying examples
• There is virtually no textbook for a research
topics. You have only journal papers.
• Studying examples or research found within
your field would illuminate theories behind
provide guidance in developing new results.
Beware of what is uncertain
• Research is venturing into unknown and you will
encounter things that you are not completely
sure about including your supervisor.
• Try to find out more about the uncertain area by
reading and/or experiments.
• Believe that something is true but it is, in fact,
false (some published results may be wrong or
you may have made an experimental,
computational or logical error in your own work),
then your thinking can be severely distorted.
Use your tools wisely
• Familiarize by reading manual of the equipment
and understand the limit and usefulness of
information that can be obtained.
• Use the correct tools to solve your problem.
• Using too powerful tools can make finding
solution becomes very difficult.
Develop necessary tools
• In the history of Science, developing of a new
instrument has always resulted in new
understanding of reality.
• Since the result you seek is novel and not yet
known by others, you cannot expect to use
readily available off-the-shelf equipment.
• Once you have those tools and techniques, then
you are in a position to do things that no one
else has done.
• Good tools can be extremely powerful
“Measure what is measurable, and make measurable what is not so.”-Galileo Galilei
Case study: Develop necessary
tools
Gas Discharge Visualisation (GDV)
Based on Kirlian Effect is a visible electro-
photonic glow of an object in response to
pulsed electrical field excitation.
In early days, Kirlian images were
recorded on photographic emulsion.
Since the sensitivity of a photographic
emulsion varies greatly with environmental
factors such as humidity, recordings were
not reproducible. As a result, some
scientists dismissed the Kirlian effect as
useless.
Case study: Develop necessary
tools
Gas Discharge Visualisation (GDV)
Modern GDV instruments developed by Prof Korotkov use glass
electrodes and their recordings are highly reproducible in a wide range of
environmental conditions.
Stimulated
electrophotonic GLOW
recorded seems to
contain information
about nearly every
major organ, function of
human organism and
human consciousness
Indirect instrumental detection of ultraweak, presumably electromagnetic radiation from organisms
Author(s): Berden, M; Jerman, I; Skarja, M
Source: ELECTRO- AND MAGNETOBIOLOGY Volume: 16 Issue: 3 Pages: 249-266 Published: 1997
Automated your measurement
system
• With the advent of computer control, why not
safe your painstaking measurement time by
automated your measurement. Very useful when
measurement are performed again and again.
Ask good questions
• The answers you get are determined and
limited by the questions you asked.
• Do ask questions on questions you want
to find out the answer
Be innovative and creative
• Most scientific discoveries and
technological advancement are fuelled by
innovative and creative thinking.
―I believe in intuition and inspiration. Imagination is more important than
knowledge. For knowledge is limited, whereas imagination embraces the
entire world, stimulating progress, giving birth to evolution. It is, strictly
speaking, a real factor in scientific research‖- Albert Einstein
Where do innovative and
creative ideas come from?
• Sudden spontaneous visions.
• Dreams
• Cross-pollination from different
fields .
―If you want to have good ideas you must have many ideas. Most of them
will be wrong, and what you have to learn is which ones to throw away.‖-
Linus Pauling
Case study: Cross-pollination from
different fields
Optical tweezer
A focused laser beam to provide an attractive or repulsive force
depending on the refractive index mismatch to physically hold and
move microscopic dielectric objects.
Arthur Ashkin -optical trapping to trap atom
Steven Chu- laser cooling on atoms
Arthur Ashkin- move biological objects with optical trapping
-won Nobel prize
-won Nobel prize
Creating New Solutions
• Ordinary creativity consists of conscious activities,
represented as linear processes
• Extraordinary creativity involves unconscious mental
processes consisting in interactions between various
regions in the associative cortex bypassing
consciousness
Creating New Solutions
Get the problem reasonably clear and then refuse to look at
any answers until you've thought the problem through carefully how you
would do it, how you could slightly change the problem to be the correct
one.- Richard Hamming
How do I nurture my creativity?
• Exploring in depth a new area
• Be eclectic to exploit outside knowledge
• Think interconnectedness and holistically
• Know when to work more deeply or to move on
• Daily meditation
• Practicing day dreaming
• Make strange familiar and the familiar strange.
• Open minded
How do I nurture my creativity?
Recognize when you're mentally tired and rest
Inspiration often comes when you are relaxing or doing something else
How to become a good
researcher?
• Be technically excellent and work hard.
• Don't fear mistakes.
• Have a vision and defend it
• Don't get discouraged and (almost)
never give up.
• Learn from the past
• Be passion with your research
―I am not discouraged, because every wrong attempt discarded is another step
forward‖- Thomas Edison
How to become a good
researcher?
• Think interconnectedness and
holistically
• Sell your ideas
• Develop ability to tolerate ambiguity
“If you believe too much you'll never notice the flaws; if you doubt too
much you won't get started. It requires a lovely balance.‖ -Richard
Hamming
Writing good paper
Characteristics of High Impact
paper
• The work you have done something
important to advance towards a solution of
one of the big problem.
• You have solved the big problem in your
field.
• You have discovered something important.
Characteristics of Good paper
• Show deep fundamental understanding
(mechanism ,etc) of the research work.
• Show details of logical and coherent
explanation of the investigated
phenomena
• Show that what you have done is different
from other people.
Reasons for paper rejection
• Lack of mechanistic and fundamental study
• Lack of novelty. Your conclusion is very similar to
what it has been published previously even though
there are differences. It does not provide any
significant original contribution to the community
• Wrong format of submission.
• Your study is not complete. Ie, you need to have
more conclusive experiment to back your data up
and be more specific .
• There is a flaw in your experimental process and
your interpretation of your results.
Writing good paper
• Ensure novelty.
• Ensure it can provide significant original
contribution.
• Strong fundamental and mechanistic
study.
• Back up your data with experimental
evidences that reach your conclusion.
Writing good paper
• Make sure you are in continuous development of critical
thinking. An individual or group engaged in strong
critical thinking gives due consideration to:
• Evidence through observation
• Context
• Relevant criteria for making the judgment well
• Applicable methods or techniques for forming the
judgment
• Applicable theoretical constructs for understanding
the problem and the question at hand
Writing good paper
• Critical thinking employs not only logic but
broad intellectual criteria such as clarity,
credibility, accuracy, precision, relevance,
depth, breadth, significance, and fairness.
Scientific conduct
Safety, Credibility, Integrity
Safety
• MSDS -material safety data sheet is a
form containing data regarding the
properties of a particular substance.
• Take precautious when dealing with
dangerous chemicals, high voltage , class
II,III, IV lasers and etc
• In doubt, ask your supervisor
Scientific Misconducts
Intentional distortion of the research process by fabrication
of data, text, hypothesis, or methods from another researcher's
manuscript form or publication
Obfuscation - The Omission of critical data/ results
Fabrication – the actual making up of research data.
Falsification – manipulation of research data and processes in order to reflect
or prevent a certain result.
plagiarism – the act of taking credit for the work of another
self-plagiarism – or Multiple publication of the same content with different titles
and/or in different journals
the violation of ethical standards
stealing the work and results of others and publish them
Scientific Misconducts
“If you're doing an experiment, you should report everything that you think
might make it invalid — not only what you think is right about it... Details that
could throw doubt on your interpretation must be given, if you know them.‖-
Richard Feynman
PAUL M. GRANT
nature materials VOL1 2002 p1
Jan Hendrik Schon
Credibility :
soundness of logic, scientific process,
conform with common belief
Honest mistakes in judgment and errors in interpretation
made in good faith are not regarded as scientific misconduct
More advices on doing research
• Science
• http://sciencecareers.sciencemag.org/
• Nature
http://www.nature.com/
- Advices by experienced researchers and Nobel laureates
can sometime be found on the above magazines
- You and your research by Dr Richard Hamming , a Bell lab
scientist,
- http://www.csee.usf.edu/~zheng/hamming-research.pdf
“If I have seen further it is only by standing on the shoulders of giants.‖- Issac Newton
My 2cent
• Doing research is like cultivating thinking skills.
• You do experiments/ modeling to check what you
think is correct/incorrect.
• You constantly improve your thinking skills. You
gain new practical experience so that you have
more means to verify your thinking/ideas.
Hope you are smarter after this lecture.
You will get significantly smarter at the end of your
research. Maybe smarter than me.
For those who are doing PhD, I am sure you
will get your Permanent Head Damage.
The END
HAVE FUN with your research
―All my life through, the new sights of Nature made me rejoice like a child ―-
Marie Curie

More Related Content

What's hot

Better Startups Through Science - MIT Accelerator 2014
Better Startups Through Science -  MIT Accelerator 2014Better Startups Through Science -  MIT Accelerator 2014
Better Startups Through Science - MIT Accelerator 2014Colin Kennedy
 
Science fair informational meeting for parents ppt
Science fair informational meeting for parents pptScience fair informational meeting for parents ppt
Science fair informational meeting for parents pptdlashe
 
Science Inquiry: Observe & Hypothesize
Science Inquiry:  Observe & HypothesizeScience Inquiry:  Observe & Hypothesize
Science Inquiry: Observe & HypothesizeI Wonder Why Science
 
Finding a research topic
Finding a research topicFinding a research topic
Finding a research topicHussein Sabit
 
Science fair handbook (autosaved)
Science fair handbook (autosaved)Science fair handbook (autosaved)
Science fair handbook (autosaved)Blaschke's Class
 
School Science Projects based on Experiments
School Science Projects based on ExperimentsSchool Science Projects based on Experiments
School Science Projects based on ExperimentsHiran Amarasekera
 
Insights from psychology on lack of reproducibility
Insights from psychology on lack of reproducibilityInsights from psychology on lack of reproducibility
Insights from psychology on lack of reproducibilityDorothy Bishop
 
Endophytic fungi conservation: techniques, advantages, disadvantages
Endophytic fungi conservation: techniques, advantages, disadvantagesEndophytic fungi conservation: techniques, advantages, disadvantages
Endophytic fungi conservation: techniques, advantages, disadvantagesPrograma TF Innova
 
Scientific and Academic Research: A Survival Guide 
Scientific and Academic Research:  A Survival Guide Scientific and Academic Research:  A Survival Guide 
Scientific and Academic Research: A Survival Guide PayamBarnaghi
 
Scientific Writing for Impact Factor Journals
Scientific Writing for Impact Factor JournalsScientific Writing for Impact Factor Journals
Scientific Writing for Impact Factor JournalsEric Lichtfouse
 
How good software enables good scientific practices.
How good software enables  good scientific practices.How good software enables  good scientific practices.
How good software enables good scientific practices.Sylvain Baillet
 
Lesson 3 Doing Science
Lesson 3  Doing ScienceLesson 3  Doing Science
Lesson 3 Doing ScienceDwayne Squires
 
Natural sciences 2017 18
Natural sciences 2017 18Natural sciences 2017 18
Natural sciences 2017 18Kieran Ryan
 
The science and art of methodology
The science and art of methodologyThe science and art of methodology
The science and art of methodologyJosh LaMar
 
7th grade august 20th, 2010
7th grade august 20th, 20107th grade august 20th, 2010
7th grade august 20th, 2010jagillia
 

What's hot (19)

Better Startups Through Science - MIT Accelerator 2014
Better Startups Through Science -  MIT Accelerator 2014Better Startups Through Science -  MIT Accelerator 2014
Better Startups Through Science - MIT Accelerator 2014
 
Science fair informational meeting for parents ppt
Science fair informational meeting for parents pptScience fair informational meeting for parents ppt
Science fair informational meeting for parents ppt
 
Science Inquiry: Observe & Hypothesize
Science Inquiry:  Observe & HypothesizeScience Inquiry:  Observe & Hypothesize
Science Inquiry: Observe & Hypothesize
 
Finding a research topic
Finding a research topicFinding a research topic
Finding a research topic
 
Science fair handbook (autosaved)
Science fair handbook (autosaved)Science fair handbook (autosaved)
Science fair handbook (autosaved)
 
School Science Projects based on Experiments
School Science Projects based on ExperimentsSchool Science Projects based on Experiments
School Science Projects based on Experiments
 
Insights from psychology on lack of reproducibility
Insights from psychology on lack of reproducibilityInsights from psychology on lack of reproducibility
Insights from psychology on lack of reproducibility
 
Endophytic fungi conservation: techniques, advantages, disadvantages
Endophytic fungi conservation: techniques, advantages, disadvantagesEndophytic fungi conservation: techniques, advantages, disadvantages
Endophytic fungi conservation: techniques, advantages, disadvantages
 
Scientific and Academic Research: A Survival Guide 
Scientific and Academic Research:  A Survival Guide Scientific and Academic Research:  A Survival Guide 
Scientific and Academic Research: A Survival Guide 
 
Articulo 50 palabras
Articulo 50 palabras Articulo 50 palabras
Articulo 50 palabras
 
Scientific Writing for Impact Factor Journals
Scientific Writing for Impact Factor JournalsScientific Writing for Impact Factor Journals
Scientific Writing for Impact Factor Journals
 
SY 7034 Week8
SY 7034 Week8SY 7034 Week8
SY 7034 Week8
 
How good software enables good scientific practices.
How good software enables  good scientific practices.How good software enables  good scientific practices.
How good software enables good scientific practices.
 
Lesson 3 Doing Science
Lesson 3  Doing ScienceLesson 3  Doing Science
Lesson 3 Doing Science
 
How to ace the viva dcu
How to ace the viva dcuHow to ace the viva dcu
How to ace the viva dcu
 
Natural sciences 2017 18
Natural sciences 2017 18Natural sciences 2017 18
Natural sciences 2017 18
 
The science and art of methodology
The science and art of methodologyThe science and art of methodology
The science and art of methodology
 
7th grade august 20th, 2010
7th grade august 20th, 20107th grade august 20th, 2010
7th grade august 20th, 2010
 
Writing Scientific Research Papers
Writing Scientific Research PapersWriting Scientific Research Papers
Writing Scientific Research Papers
 

Similar to research methodology

PRESENTATION_!.pptx
PRESENTATION_!.pptxPRESENTATION_!.pptx
PRESENTATION_!.pptxAmlanDas64
 
scientific method - Copy.pptx
scientific method - Copy.pptxscientific method - Copy.pptx
scientific method - Copy.pptxMaribelMadarimot1
 
Introductionresearchmethodology 1
Introductionresearchmethodology 1Introductionresearchmethodology 1
Introductionresearchmethodology 1JO GALLEGOS
 
Research skills & ethics in science life
Research skills & ethics in science lifeResearch skills & ethics in science life
Research skills & ethics in science lifeHossam Alhelaly
 
On practical philosophy of research in science and technology
On practical philosophy of research in science and technologyOn practical philosophy of research in science and technology
On practical philosophy of research in science and technologySeppo Karrila
 
how to teach science effectively
how to teach science effectivelyhow to teach science effectively
how to teach science effectivelyHadeer Ali
 
Review on research problem problem finding,
Review on research problem problem finding,Review on research problem problem finding,
Review on research problem problem finding,Rajendnra Singh
 
Survey of sciences chapter 1
Survey of sciences chapter 1Survey of sciences chapter 1
Survey of sciences chapter 1V Swier
 
المحاضرة الثانية - سلسلة اساسيات البحث العلمي
المحاضرة الثانية - سلسلة اساسيات البحث العلميالمحاضرة الثانية - سلسلة اساسيات البحث العلمي
المحاضرة الثانية - سلسلة اساسيات البحث العلميEgypt Scholars Inc.
 
About your graduate studies part 2
About your graduate studies part 2About your graduate studies part 2
About your graduate studies part 2Seppo Karrila
 
Grade 9, U0-L2B Nature of Science
Grade 9, U0-L2B Nature of ScienceGrade 9, U0-L2B Nature of Science
Grade 9, U0-L2B Nature of Sciencegruszecki1
 
Research Challenges – Am I Doing “Real” Research?
Research Challenges – Am I Doing “Real” Research?Research Challenges – Am I Doing “Real” Research?
Research Challenges – Am I Doing “Real” Research?Dr. Mazlan Abbas
 
1-2usingscientificmethod-090828073148-phpapp01.pdf
1-2usingscientificmethod-090828073148-phpapp01.pdf1-2usingscientificmethod-090828073148-phpapp01.pdf
1-2usingscientificmethod-090828073148-phpapp01.pdfKimberlyMiramontesSo
 

Similar to research methodology (20)

PRESENTATION_!.pptx
PRESENTATION_!.pptxPRESENTATION_!.pptx
PRESENTATION_!.pptx
 
Teacher's Copy.docx
Teacher's Copy.docxTeacher's Copy.docx
Teacher's Copy.docx
 
scientific method - Copy.pptx
scientific method - Copy.pptxscientific method - Copy.pptx
scientific method - Copy.pptx
 
Introductionresearchmethodology 1
Introductionresearchmethodology 1Introductionresearchmethodology 1
Introductionresearchmethodology 1
 
Research skills & ethics in science life
Research skills & ethics in science lifeResearch skills & ethics in science life
Research skills & ethics in science life
 
Educational researh
Educational researhEducational researh
Educational researh
 
On practical philosophy of research in science and technology
On practical philosophy of research in science and technologyOn practical philosophy of research in science and technology
On practical philosophy of research in science and technology
 
how to teach science effectively
how to teach science effectivelyhow to teach science effectively
how to teach science effectively
 
Review on research problem problem finding,
Review on research problem problem finding,Review on research problem problem finding,
Review on research problem problem finding,
 
Survey of sciences chapter 1
Survey of sciences chapter 1Survey of sciences chapter 1
Survey of sciences chapter 1
 
المحاضرة الثانية - سلسلة اساسيات البحث العلمي
المحاضرة الثانية - سلسلة اساسيات البحث العلميالمحاضرة الثانية - سلسلة اساسيات البحث العلمي
المحاضرة الثانية - سلسلة اساسيات البحث العلمي
 
عزوز
عزوزعزوز
عزوز
 
About your graduate studies part 2
About your graduate studies part 2About your graduate studies part 2
About your graduate studies part 2
 
محاضرة 4
محاضرة 4محاضرة 4
محاضرة 4
 
Grade 9, U0-L2B Nature of Science
Grade 9, U0-L2B Nature of ScienceGrade 9, U0-L2B Nature of Science
Grade 9, U0-L2B Nature of Science
 
What is the Nature of Science?
What is the Nature of Science?What is the Nature of Science?
What is the Nature of Science?
 
Research Challenges – Am I Doing “Real” Research?
Research Challenges – Am I Doing “Real” Research?Research Challenges – Am I Doing “Real” Research?
Research Challenges – Am I Doing “Real” Research?
 
science
sciencescience
science
 
science
sciencescience
science
 
1-2usingscientificmethod-090828073148-phpapp01.pdf
1-2usingscientificmethod-090828073148-phpapp01.pdf1-2usingscientificmethod-090828073148-phpapp01.pdf
1-2usingscientificmethod-090828073148-phpapp01.pdf
 

research methodology

  • 1. Research methodology Dr Woon Kai Lin ph7klw76@um.edu.my; Room A320, Block A, Phys Dept; Tel: 03-79674287
  • 2. Why you want to do research? • REASONS you want to do research List down 5 reasons why you want to do research
  • 3. How does research feel like? “A scientist in his laboratory is not a mere technician: he is also a child confronting natural phenomena that impress him as though they were fairy tales.‖-Marie Curie Exciting (EUREKA!) Additive Potential to change the world FUN Difficult FrustratingRESEARCH
  • 4. What is research? • Research is the search for new knowledge by scientific methods and/or finding new applications with new found knowledge.
  • 5. What is a scientific method? Scientific method Gathering Data via experimentation & observation Formulating & Hypothesize & testing Logical reasoningLaw of nature Interpreting data unbiased Peer review of results and methodology Duplicable predicting
  • 6. Scientific Process • Define the question • Gather information and resources (observe) • Form hypothesis • Perform experiment and collect data • Analyze data • Interpret data and draw conclusions that serve as a starting point for new hypothesis • Publish results • Retest (frequently done by other scientists)
  • 7. What is a good research? IMPORTANT PRACTICAL RAMIFACTION SIGNIFICANT INTELLECTUAL CONTENT BEST BUT ―Scientific discovery and scientific knowledge have been achieved only by those who have gone in pursuit of it without any practical purpose whatsoever in view.‖- Max Planck
  • 8. I want to build a time-machine, it is a ‗great research problem‘ but…… Research Problem A good research problem must have an ATTACK. Without ATTACK, you will not able to solve the problem. “The worthwhile problems are the ones you can really solve or help solve, the ones you can really contribute something to”- Richard Feynman
  • 9. How do find a good research problem? Good research problem RESEARCH TALK TO EXPERT READ ATTENDING SEMINAR This assumes that you have had a good starting point for your research. This is often the responsibility of your advisor.
  • 10. READ, READ, READ READ SELECTIVELY, if not you will experience information overload
  • 11. How to read? • Feature and review articles best place to start research on a new topics. • Look at the papers published in high impact journals and highly cited papers. • It is very important to have questions in your mind which you think reading journals would help you to find the answers or make the questions clearly.
  • 12. Reading old books and papers Graphite is a conductor According to text book Graphene
  • 13. Recently….. Graphene can be semiconductor too!!!! If possible read latest books/journals
  • 14. Highly cited papers www.isiknowledge.com/ Search organic electronics and sorted by time cited
  • 15. What is impact factor ? • Citation of a given journals. A measure of relative importance of the journal within its field. All Journals http://www.sciencegateway.org/rank/index.html Material science
  • 16. How to solve a research problem? • Expose and challenge hidden assumption. assumption Simplify conversation It happens too often Everyone should have known “Conclusion is as good as assumption used to reach there.”- Tom Chalko misconception Belief system
  • 17. Case study: Expose and challenge hidden assumptions Fact 1. That the stars, sun, and planets appear to revolve around the Earth each day. 2. Common sense perception that as the Earth is solid and stable it is not moving—but is at rest Earth is in the centre of the Universe It is assumed and believed to be true because of it is common sense.
  • 18. Case study: Expose and challenge hidden assumptions Galileo Jupiter The stars just appear and disappear from the background with respect to Jupiter? Venus Why Venus changes shape?
  • 19. Case study: Expose and challenge hidden assumptions Galileo Challenge the view that the Earth is not the centre of the Universe. The belief is so deeply rooted that no one believe him at that time.
  • 20. How to solve a research problem? • Treat inconsistencies as opportunities INCONSISTENCY Instrumentation? Misconception? Belief system? Assumptions? New law of physics? You must have a good tolerance of the ambiguity
  • 21. Case study: Treat inconsistencies as opportunities If the earth is not the center of the universe, the earth must be ‗flying‘ across space but why the earth is not moving and appear solid? There is an inconsistency with Galileo conclusion. Because of that lots of people think that Galileo was incorrect.
  • 22. Case study: Treat inconsistencies as opportunities • Newton noticed the inconsistencies and he delved deeply in the matter. And hence Newton's law of universal gravitation “Inspiration comes from the prepared mind”
  • 23. How to solve a research problem? • Investigate anomalies anomalies New discovery? Procedure error? Instrumental Error? Great discovery often happened by accidents. Don't kick it under the workbench. Construct an example or experiment to emphasize the anomaly and bring it into clear view Accident?
  • 24. Case study: Investigate anomalies • In 1928 Fleming left the lid off the top of one of his Petri dishes. • He went for vacation • He returned and notice……. FUNGUS (contamination) Bacteria Fleming trying to grow in agar dish (Staphylococcus )
  • 25. Case study: Investigate anomalies • Lucky Fleming is observant enough that he didn‘t through away as he saw regions without Fungus!! • Fleming concluded that the mould was releasing a substance that was repressing the growth of the bacteria • He grew a pure culture and discovered that it was a Pencillium ( the most powerful antibiotic for curing serious disease)
  • 26. How to solve a research problem? • Examine extreme cases. You can learn a lot about a problem by pushing it to extremes. Make numbers big, small, zero, equal to each other, etc., to see what you can learn. These special cases may expose what the solution looks like around the edges.
  • 27. Seek simplicity and distrust it • The law of nature is governed by simple laws. Most amazing equations are often the simplest. maFmcE 2 •But in REAL world, the law of physics are often interacting on each other, a simplistic view often doesn‘t describe the real word.
  • 28. Making others research papers obsolete • ―The value of a paper is related to the number of earlier papers that it renders obsolete‖- Hilbert Displace previous work by introducing new points of view ,developing new techniques, refining thought processes and etc
  • 29. Build doors and bridges • The real value of an advance or solution is the number of doors that it opens for future research. Developed in 1947 at Bell Labs by Shockley, Brattain, and Bardeen Modern Electronics and advanced material and methodology for Semiconducting research
  • 30. Reinventing a better wheel • Don‘t reinvent the wheel since it wastes time and resources. • But if you found yourself doing something very similar to others, go beyond other researchers' work by putting your individual perspective, any specialized tools you develop along the way. Improve upon it. ―Great discoveries and improvements invariably involve the cooperation of many minds. I may be given credit for having blazed the trail, but when I look at the subsequent developments I feel the credit is due to others rather than to myself.‖ – Alexander Graham Bell
  • 31. Case study: Reinventing a better wheel WIRELESS ENERGY TRANSFER Tesla intended for the tower to demonstrate how the ionsphere could be used to provide free electricity to everyone without the need for power lines. Project not completed because of the lack of funding 1900s
  • 32. Case study: Reinventing a better wheel Martin Soljačić from MIT, along with a lab demonstration of their technology — used here to light a 60 W bulb Efficient transfer energy transfer over long distance in the presence of extraneous environmental objects.
  • 33. New discoveries are marginal at first. • The first light bulb only burned for a few seconds. Some may conclude it is useless but others might see it as a first step for light at night. • Realize that new ideas and results are often weak at first, and they need to be nurtured and defended in order to compete with established techniques and vested interests. That takes courage and perseverance
  • 34. Studying examples • There is virtually no textbook for a research topics. You have only journal papers. • Studying examples or research found within your field would illuminate theories behind provide guidance in developing new results.
  • 35. Beware of what is uncertain • Research is venturing into unknown and you will encounter things that you are not completely sure about including your supervisor. • Try to find out more about the uncertain area by reading and/or experiments. • Believe that something is true but it is, in fact, false (some published results may be wrong or you may have made an experimental, computational or logical error in your own work), then your thinking can be severely distorted.
  • 36. Use your tools wisely • Familiarize by reading manual of the equipment and understand the limit and usefulness of information that can be obtained. • Use the correct tools to solve your problem. • Using too powerful tools can make finding solution becomes very difficult.
  • 37. Develop necessary tools • In the history of Science, developing of a new instrument has always resulted in new understanding of reality. • Since the result you seek is novel and not yet known by others, you cannot expect to use readily available off-the-shelf equipment. • Once you have those tools and techniques, then you are in a position to do things that no one else has done. • Good tools can be extremely powerful “Measure what is measurable, and make measurable what is not so.”-Galileo Galilei
  • 38. Case study: Develop necessary tools Gas Discharge Visualisation (GDV) Based on Kirlian Effect is a visible electro- photonic glow of an object in response to pulsed electrical field excitation. In early days, Kirlian images were recorded on photographic emulsion. Since the sensitivity of a photographic emulsion varies greatly with environmental factors such as humidity, recordings were not reproducible. As a result, some scientists dismissed the Kirlian effect as useless.
  • 39. Case study: Develop necessary tools Gas Discharge Visualisation (GDV) Modern GDV instruments developed by Prof Korotkov use glass electrodes and their recordings are highly reproducible in a wide range of environmental conditions. Stimulated electrophotonic GLOW recorded seems to contain information about nearly every major organ, function of human organism and human consciousness Indirect instrumental detection of ultraweak, presumably electromagnetic radiation from organisms Author(s): Berden, M; Jerman, I; Skarja, M Source: ELECTRO- AND MAGNETOBIOLOGY Volume: 16 Issue: 3 Pages: 249-266 Published: 1997
  • 40. Automated your measurement system • With the advent of computer control, why not safe your painstaking measurement time by automated your measurement. Very useful when measurement are performed again and again.
  • 41. Ask good questions • The answers you get are determined and limited by the questions you asked. • Do ask questions on questions you want to find out the answer
  • 42. Be innovative and creative • Most scientific discoveries and technological advancement are fuelled by innovative and creative thinking. ―I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research‖- Albert Einstein
  • 43. Where do innovative and creative ideas come from? • Sudden spontaneous visions. • Dreams • Cross-pollination from different fields . ―If you want to have good ideas you must have many ideas. Most of them will be wrong, and what you have to learn is which ones to throw away.‖- Linus Pauling
  • 44. Case study: Cross-pollination from different fields Optical tweezer A focused laser beam to provide an attractive or repulsive force depending on the refractive index mismatch to physically hold and move microscopic dielectric objects. Arthur Ashkin -optical trapping to trap atom Steven Chu- laser cooling on atoms Arthur Ashkin- move biological objects with optical trapping -won Nobel prize -won Nobel prize
  • 45. Creating New Solutions • Ordinary creativity consists of conscious activities, represented as linear processes • Extraordinary creativity involves unconscious mental processes consisting in interactions between various regions in the associative cortex bypassing consciousness
  • 46. Creating New Solutions Get the problem reasonably clear and then refuse to look at any answers until you've thought the problem through carefully how you would do it, how you could slightly change the problem to be the correct one.- Richard Hamming
  • 47. How do I nurture my creativity? • Exploring in depth a new area • Be eclectic to exploit outside knowledge • Think interconnectedness and holistically • Know when to work more deeply or to move on • Daily meditation • Practicing day dreaming • Make strange familiar and the familiar strange. • Open minded
  • 48. How do I nurture my creativity? Recognize when you're mentally tired and rest Inspiration often comes when you are relaxing or doing something else
  • 49. How to become a good researcher? • Be technically excellent and work hard. • Don't fear mistakes. • Have a vision and defend it • Don't get discouraged and (almost) never give up. • Learn from the past • Be passion with your research ―I am not discouraged, because every wrong attempt discarded is another step forward‖- Thomas Edison
  • 50. How to become a good researcher? • Think interconnectedness and holistically • Sell your ideas • Develop ability to tolerate ambiguity “If you believe too much you'll never notice the flaws; if you doubt too much you won't get started. It requires a lovely balance.‖ -Richard Hamming
  • 52. Characteristics of High Impact paper • The work you have done something important to advance towards a solution of one of the big problem. • You have solved the big problem in your field. • You have discovered something important.
  • 53. Characteristics of Good paper • Show deep fundamental understanding (mechanism ,etc) of the research work. • Show details of logical and coherent explanation of the investigated phenomena • Show that what you have done is different from other people.
  • 54. Reasons for paper rejection • Lack of mechanistic and fundamental study • Lack of novelty. Your conclusion is very similar to what it has been published previously even though there are differences. It does not provide any significant original contribution to the community • Wrong format of submission. • Your study is not complete. Ie, you need to have more conclusive experiment to back your data up and be more specific . • There is a flaw in your experimental process and your interpretation of your results.
  • 55. Writing good paper • Ensure novelty. • Ensure it can provide significant original contribution. • Strong fundamental and mechanistic study. • Back up your data with experimental evidences that reach your conclusion.
  • 56. Writing good paper • Make sure you are in continuous development of critical thinking. An individual or group engaged in strong critical thinking gives due consideration to: • Evidence through observation • Context • Relevant criteria for making the judgment well • Applicable methods or techniques for forming the judgment • Applicable theoretical constructs for understanding the problem and the question at hand
  • 57. Writing good paper • Critical thinking employs not only logic but broad intellectual criteria such as clarity, credibility, accuracy, precision, relevance, depth, breadth, significance, and fairness.
  • 59. Safety • MSDS -material safety data sheet is a form containing data regarding the properties of a particular substance. • Take precautious when dealing with dangerous chemicals, high voltage , class II,III, IV lasers and etc • In doubt, ask your supervisor
  • 60. Scientific Misconducts Intentional distortion of the research process by fabrication of data, text, hypothesis, or methods from another researcher's manuscript form or publication Obfuscation - The Omission of critical data/ results Fabrication – the actual making up of research data. Falsification – manipulation of research data and processes in order to reflect or prevent a certain result. plagiarism – the act of taking credit for the work of another self-plagiarism – or Multiple publication of the same content with different titles and/or in different journals the violation of ethical standards stealing the work and results of others and publish them
  • 61. Scientific Misconducts “If you're doing an experiment, you should report everything that you think might make it invalid — not only what you think is right about it... Details that could throw doubt on your interpretation must be given, if you know them.‖- Richard Feynman
  • 62. PAUL M. GRANT nature materials VOL1 2002 p1 Jan Hendrik Schon
  • 63. Credibility : soundness of logic, scientific process, conform with common belief Honest mistakes in judgment and errors in interpretation made in good faith are not regarded as scientific misconduct
  • 64. More advices on doing research • Science • http://sciencecareers.sciencemag.org/ • Nature http://www.nature.com/ - Advices by experienced researchers and Nobel laureates can sometime be found on the above magazines - You and your research by Dr Richard Hamming , a Bell lab scientist, - http://www.csee.usf.edu/~zheng/hamming-research.pdf “If I have seen further it is only by standing on the shoulders of giants.‖- Issac Newton
  • 65. My 2cent • Doing research is like cultivating thinking skills. • You do experiments/ modeling to check what you think is correct/incorrect. • You constantly improve your thinking skills. You gain new practical experience so that you have more means to verify your thinking/ideas.
  • 66. Hope you are smarter after this lecture. You will get significantly smarter at the end of your research. Maybe smarter than me. For those who are doing PhD, I am sure you will get your Permanent Head Damage.
  • 67. The END HAVE FUN with your research ―All my life through, the new sights of Nature made me rejoice like a child ―- Marie Curie