Get To Know A Scientist: Lawrence David

 

This week you have learned about how the food you eat influences your metabolism and digestive processes. When considering these digestive processes, we tend to think about the organs of the gut, including the colon; however, it turns out there are other cells that are just as important to our digestive health – bacterial cells. This leads us to our next scientist in the “Get to Know a Scientist” series.

Dr. Lawrence David is a biologist currently working as a professor at Duke University. His work examines the intersections of diet, the digestive system, and gut bacteria. More specifically, his lab focuses on how the microbes in our guts behave over time and in response to dietary changes. In addition to work in his lab, he also helped start a website (Links to an external site.) to showcase illustrated, science-related poetry.

If you haven’t already, watch the following short video that highlights the inspiration behind Dr. David’s research.
Video Credit: Why Do You Study That? Poop. (Links to an external site.) by Duke University (Links to an external site.) | Duration: 1 minute 57 seconds

Nest, listen to Dr. Lawrence David’s story of an extreme self-study (Links to an external site.) (14:15). Alternatively, you can read the transcript (Links to an external site.) of this story.
Lastly, read this interview from The Chronicle (Links to an external site.) that highlights Dr. David’s educational background and examines his research a bit further.
Assignment Details
After reviewing the videos and articles, write a 300 word or more reflection with your responses to what you saw. Some topics you might wish to discuss include but are not limited to:

What was most interesting to you in reviewing these resources?
What did you learn from these resources about the relationships between the digestive system and bacteria?
What new questions do you have after reviewing these resources?
What do these resources tell you about the types of people that do science?

 

Sample Solution

g performance, Figure 2 shows Tuckman’s model. Ranking group performance against this scale can provide leaders with a clear understanding of how the group are functioning, allowing them to implement policies to change this if performance is unsatisfactory (Pettinger, 2007). Within organisations, the theory can be loosely applied to creating teams by grouping familiar individuals with the aim that they will reach the norming and performing stage of the model quicker. For short and simple tasks this is an extremely effective way of organising groups, due to the increased short term productivity. However there are significant issues with grouping individuals in this manner, particularly when tasks become more complex, and ultimately the model should mainly be used for monitoring the progress of groups (Pettinger, 2007).
Figure 3: Belbin’s Team Roles (PrePearl Training Development, 2019)
A more functional approach of grouping individuals is to utilise Belbin’s Team Theory (Belbin, 2017). Belbin identifies 9 key roles that must be fulfilled within a group to ensure success, the roles are summarised in Figure 3. The roles cover a wide spectrum of skills that need to be present within a group to ensure success, and becomes essential when tasks are lengthy and complex. Organisations can find the Belbin roles each individual fits through a questionnaire, and thus balanced groups can be formed covering all the roles. However, like with Fiedler’s contingency model, the theory when translated to practice can often become very impractical for organisations to implement regularly. This is largely because the organisation is constrained by the personalities of their employees, their may be an abundance of one personality type and an absence of another, the only solution is to hire externally to fill the missing roles within teams. This can result in an extensive payroll for an organisation and huge financial implications as they cannot legally dismiss employee’s if they have too many of one personality type. The importance of Belbin roles in a team became apparent for Group 1 on the first day of the outdoor management course, the group had 5 people who filled the completer finisher and implementor roles, however had no-one filling the resource investigator or monitor evaluator role, the group ran out of time and did not complete the task successfully. Obviously running out of time was not the sole cause of the groups failure, however if someone had been monitoring time and performance then the group may have realised their option was unfeasible and could have found an alternative solution. One solution for lack of Belbin roles is to assign specific roles to individuals, this was implemented heavily on the outdoor management course for roles perceived to be essential for success such as time keeping. This method works for simple tasks, however for complex tasks the individual with the assigned responsibility can often become engrossed in the task and forget their role, or the opposite becoming too engrossed with the responsibility they have been assigned. U

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