writing in the sciences · scientific writing 3 •communicate scientific research to peers ......
TRANSCRIPT
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Writing in the Sciences
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Scientific Writing
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• Communicate scientific research to peers
• Scientific journals disseminate information
• Generally rigid in format and presentation
• Scrutinised and reviewed by scientific peers
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Learn scientific skills:
– Conduct scientific research project
– Analyse data
– Report findings in accepted scientific journal
structure
– Review peer articles in a critical manner
– Address peer review of your paper
Assessment – Scientific Report
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• Third person
The number of individual Kalahari tree skinks
were counted
or
• First person
We counted the number of individual Kalahari
tree skinks
• Be consistent!!!
Scientific Writing Style
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• Past tense
– We counted the number of individual Kalahari
tree skinks
– The number of individual Kalahari tree skinks
were counted
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Scientific Writing Style
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Scientific Writing Style
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Scientific Writing Style
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1. Title
2. Abstract
3. Introduction
4. Methods
5. Results
6. Discussion/Conclusion
7. References
Scientific Report - Structure
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• Concise and informative
• Short accurate description of the main point/emphasis of work
• Should reflect exactly what you did and not be vague
• Include any names of species studied – give common name
followed by scientific name
• Only the first letter of the first word and proper nouns
capitalised
Title
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• The reader should be able to decide if the information in your
report is relevant from your title
“Greenhouse experiment.” – not sufficiently informative
“A simulation of the effects of carbon dioxide on atmospheric
temperature and ocean acidity.”
Title
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Title
common name
species name in italics –
sometimes in brackets
(depends on the journal)
Short but
descriptive title of
what was
investigated
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• Summary of whole paper – One concise paragraph
(about 150-200 words or approximately 10% of the whole text)
• Highlighting
– The main reason for the study
– Methods employed
– Principal results
– Major conclusions
*Does not contain references
Abstract
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• Gives the reader a quick overview of the
whole report
• Write the abstract last – you will have a
clearer picture of findings and conclusions
Abstract
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What they did
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Why we should pay
attention
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Results – even if
unexpected or not
significant
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Key conclusions and
recommendations – future
considerations can be included
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Background
& why
Results
Discussion
Conclusion
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• Provides scientific background information
• Establishes rationale for study
• Summarises relevant scientific literature –
references (in text citations)
• States objectives, aims, hypotheses and
predictions
Introduction
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Introduction
Establish the broad context
Summarise previous research
Describe the aims of this research
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• Describe what you did so that a colleague/scientist can exactly replicate your experiments
• Not a lab manual
• Past tense
• Don’t list – describe in sentences and paragraphs
• Statistical methods used/programs
• Specialised equipment
• Modifications to any procedures
Methods
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Bad examples
• Take 2 clear plastic bottles
and fill with water
Don’t tell the reader what to do,
rather tell them what you did
• Collect 2 clear 2L bottles
• Fill 1 with tap water
• Fill 2nd with carbonated water
Don’t list, describe in sentence
and paragraph
Better examples
• “Two plastic bottles were filled
using a beaker and funnel, to
the same level. One bottle
was filled with carbonated
water and the other with non-
carbonated tap water.”
• “Two plastic bottles were filled
with either carbonated (CO2)
or plain water using a beaker
and funnel, to the same level.”
Methods
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• Present the facts – what you discovered during your experiments (in order of importance/relevance)
• Clear and concise written description of your findings first – refer to figures and tables in text
• Detailed data – tables, graphs, figures etc.
• Raw data??
Results
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• Don’t discuss the results
– present the facts you discovered only
- You will interpret them in the next section Discussion
Results
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• Numbered in the order in which they
appear
• Caption directly above table – full
description of the data that appears in the
table
• Each column and row labelled appropriately
Tables
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Tables
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Figures
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• Numbered in the order in which they appear
• Caption directly below figure – full
description of the data that appears in the
graph/diagram
• Captions must contain enough information
that they can be read and understood
without referring to the text.
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Keep It Simple
0
1
2
3
4
5
6
7
Blue Dark Brown Light Brown White
Fre
quency
Egg Colour
Is better than.........
Figure 15. The colour of eggs laid during a two
day period in October
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Keep It Simple
Figure 16. The colour of eggs laid during a two day period in
October
The simplest representation is best
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• The Independent Variable always goes on
the horizontal axis (known as the ‘x axis’)
• The Dependent Variable always goes on
the vertical axis (known as the ‘y axis’)
Graphing Results
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Which is Which?
I want to graph TIME SPENT STUDYING vs STUDENT
GRADES.
Which variable is dependent?
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• The Independent Variable always goes on
the horizontal axis (known as the ‘x axis’)
• The Dependent Variable always goes on
the vertical axis (known as the ‘y axis’)
Graphing Results
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Which is Which?
I want to graph TIME SPENT STUDYING vs STUDENT
GRADES.
STUDENT GRADES DEPEND on TIME SPENT
STUDYING
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Graphing Using Excel
Excel is a good data management tool
With some practise, you can produce and edit graphs quickly in Excel
Search the internet and YouTube for videos and tutorials about creating graphs in Excel
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Lynda.com
You can find and access courses to help with your
study through Lynda.com
1) Go to website www.jcu.edu.au
2) Click on “Library”
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• Interpret and explain your findings
• How do your results compare to previous knowledge in the field?
• Where do your results ‘fit’ in relationship to the hypothesis?
• You need to explain your results – hypothesis accepted or rejected? Why?
• Were there any unexpected results?
• Improvement in your experiments – usually methodology
• Do your results have any implication for future experiments?
Discussion
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• 1. Did you achieve your aim?
• 2. Did you accept or reject your hypotheses?
• 3. Explain and interpret the results: Why do you think you found what you did? How does this relate to the questions, problems or hypotheses presented in the introduction?
• 4. Compare your results with the literature: Can your results be placed in the context of the material presented in your textbook, other published work (journal articles) and with other class results? Is there a pattern and can you make any generalisations? If your results were different, why do you think this was so? Can you provide a justification for your investigation?
Discussion
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In total, our results show that the introduction of foxes to the Aleutian archipelago transformed the islands from grassland to maritime tundra. Fox predation reduced seabird abundance and distribution, in turn reducing nutrient transport from sea to land. The more nutrient-impoverished ecosystem that resulted favored less productive forbs and shrubs over more productive grasses and sedges.
These findings have several broad implications. First, they show that strong direct effects of introduced predators on their native prey can ultimately have dramatic indirect effects on entire ecosystems and that these effects may occur over large areas…
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• Be Clear
• Be Direct
• State information in as simple a way as
possible
Organising your writing
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One of the really bad things you can do to your
writing is to dress up the vocabulary, looking for
long words because you're maybe a little bit
ashamed of the short ones. This is like dressing up
a pet in evening clothes.
Stephen King
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The results of this randomised, double-
blind, placebo controlled trial
demonstrated that this drug is effective
for the treatment of seizures in children
and adults. This is the first study to
demonstrate a statistically significant
effect of this drug compared with a
placebo in patients with seizures.
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• The results of this
randomised, double-blind,
placebo controlled trial
demonstrated that this
drug is effective for the
treatment of seizures in
children and adults. This is
the first study to
demonstrate a statistically
significant effect of this
drug compared with a
placebo in patients with
seizures.
• This is the first time
that this drug has been
shown to be effective
for the treatment of
seizures.
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• Many scientific reports include a
conclusions section
• Check if required for your subject – can be
incorporated into discussion
Conclusion
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• In text citations – introduction and
discussion
• Reference list at the end of report
• Check referencing style for your subject
References
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Checklist
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