Ales 204: Kaustav Guest Lecture on Academic Writing in Science
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Transcript of Ales 204: Kaustav Guest Lecture on Academic Writing in Science
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Scientific Article – Reading and Writing
Kaustav MajumderALES-204, 19th October, 2011
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Organization of a Scientific Article
• An article layout– Title– Abstract– Introduction– Materials and Methods– Results– Discussion– Conclusion– Tables and Figures
• Table titles and Figure legends
– References
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• Effective reading or Selection of an article – Title and Abstract• How relevant the title is?• Connection between the title and the abstract.
– Introduction• Scan the initial paragraphs.• Put emphasis on the concluding paragraphs.• Understand the logical flow between earlier studies
and the present one.
Reading a Scientific Article
Relevance of the article
Rationale of the article
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Reading a Scientific Article Contd..
– Tables and Figures• Read the titles of the table and/or figure legends.• Relationship with abstract.
– Conclusion• Identify the achievement, correlation and the future
prospects.
Workflow of the article
Take home messages
Serve Your PurposeAcceptance or Rejection of the Article
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Reading a Scientific Article Contd..
Article is closely related with your purpose
– Results and Discussion• Most important section of an article.• Identify the novel elements discussed in this section.• Understand the relationship and the context of the
study.
– Materials and methods• Identify the newly developed method.• Source of the materials.
– References• Look when it is required.
Depth of the article
Quality and compactness of the article
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• Type of the article– Individual experiment type.– Cohort or population based study.– Randomized control and trial study.– Review article• Narrative • Systematic • Meta- analysis
Critical Reading of a Scientific Article
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1. What questions does the article address?2. What was the research design? Is it
appropriate? 3. What are the main conclusions of the article?4. What evidence supports those conclusions?5. Do the data actually support the conclusions?6. What is the quality of the evidence?7. Why are the conclusions important?
These questions are specifically for individual study, cohort study and random trial study
NOT for Review article
Critical Reading of a Scientific Article contd..
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What questions does the article address?– Type of questions• Descriptive: What is there? What did the authors
observe?
• Comparative: How does it compare to other organisms/animals/population? Are the findings general? Reproducibility and applicability?
• Analytical: Underlying mechanism of action or the story behind the study?
Critical Reading of a Scientific Article contd..
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Critical Reading of a Scientific Article contd..
What was the research design? Is it appropriate? • The design of the study can answer the addressed
question• The statistical strength of the design and relevant
statistical analysis• Correct use of an animal model/ cell-line or proper
use of a computer simulation
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Critical Reading of a Scientific Article contd..
What are the main conclusions of the article?• Did the authors properly answer the questions
mentioned in the abstract section?• Relevant outcome of the study
What evidence supports the conclusion?• The rationale of drawing the conclusion• Does the primary experiment supports the point?
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Critical Reading of a Scientific Article contd..
Do the data actually support the conclusions?• Do the authors properly interpret the obtained data?
– find the logical connection• Do the data actually support/reject the hypothesis?• Do the authors had covered required sample size to
reach the statistical significance?
Statistics is Important
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Critical Reading of a Scientific Article contd..
What is the quality of the evidence?• The methods used in the study is well established• A new method should be published on a peer-
reviewed journal first..• The methods are reproducible.• Materials?
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Critical Reading of a Scientific Article contd..
Why are the conclusions important?• Do the conclusions make a significant advance in
your knowledge? • Do the conclusions help in the advancement of
future scientific research? • Do they lead to new insights, or even new research
directions?
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Critical Reading of a Review Article
Narrative or Classical Review • The “traditional” or “classic” review• Articles used in the review are chosen by the
author.• Author may be biased- Major concern.Systematic Review • Comparative analysis…most common for analytical
methods• Should include both inclusion and exclusion criteria.• Should support with the scientific evidences.
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Critical Reading of a Review Article Contd..
Meta analysis• Close to systematic review.• Often deals with numeric data.• Uses statistical/mathematical methods to
combine numerical data from various earlier studies
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Writing a Scientific Article• Writing Structure– Analysis• Before writing anything, Analyze Your Data!• Identify the key concepts• Target the audience, do audience analysis.• Indentify the actual technical material.
– Design• Organize all information and data• Group the key concepts.• Structure the layout.. (Tables and figures)
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– Implementation• Write…edit…edit…edit…• Strive for accuracy and clarity• Emphasize the central idea• Identify the ‘Junks’….delete them
– Publication• Choose the Journal• Read the instructions to the authors.• Maintain the style and proper format• Select reviewers and editor.• Submit for publication.
Writing a Scientific Article Contd..
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Writing a Scientific Article Contd..
TITLE
ABSTRACT
METHODS
RESULTS
INTRODUCTION
Image Courtesy: http://www.joconl.com/article/id23578
REFERENCES
MATERIALS
MEMORY GAME
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• Select a specific Journal–Choose the quality of the Journal• Impact factor–Quality of the journal in a specific field of study– Calculating Impact factor:» Citation of recent items/Number of recent
items. (last year Vs current year)
• Immediacy Index– How the journal is currently operation– Calculation of Immediacy index» Citation of recent items/Number of recent
items. (current year Vs current year)
Publishing a Scientific Article
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General database• PUBMED• WEB of SCIENCE
Specialized database• Food and Nutrition :
– Food Science and Technology Abstracts (FSTA)– Agricola– CAB Abstracts– SCOPUS– FoodNetBase (for e-books)– CINAHL– EMBASE– Natural Standard– SCOPUS
Journal Databases
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Journal DatabasesAnimal Science• CAB Abstracts• BIOSIS Previews• AGRICULTUREnetBASE• Knovel
Plant Science and Soil Science• Agricola• Environment Complete• CAB Abstracts• More Plant Science Databases
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Class Activity– Tweet about THREE new things you learn
today.
–Respond to ONE another students tweet.
– Tag #ALES204, @JessL