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Week 12 Draft 3

Submitted by jngomez on Tue, 04/10/2018 - 21:45

At the end of this experiment, it will illustrate what kinds of environments the arthropods thrive in within the buildings examined. This proposal project will provide insight into the Morrill buildings of the University of Massachusetts, Amherst, and the diverse sets of arthropods that inhabit within them. It will enable colleagues to study window sills and take note of what they inhabit and how these conditions contribute to number of arthropods present. Understanding factors that contribute to arthropod presence could be used to develop a management strategy of the buildings.

 

 

Week 12 Draft 2

Submitted by jngomez on Tue, 04/10/2018 - 21:44

We will apply this founding to Morrill Buildings III and IV. The Morrill Greenhouse and Reptile exhibit will serve as factors to the reasons a closer distance to these locations will mean that a higher number of arthropods will be observed. In Morril Greenhouse there are a variety of plant species and arthropods as well that could travel to Morrill III given its very close proximate to the building.  

Week 12 Draft 1

Submitted by jngomez on Tue, 04/10/2018 - 21:38

There are a variety of factors that contribute to the best predicted number of diverse sets of arthropods found indoors.  Homes located in wealthy neighbourhoods have a high number of arthropod diversity. This effect is known as “luxury effect” in which a more biological diversity is present in wealthy areas. There is a high correlation with plant presence and plant associaciated arthropods that find their way into indoor areas such as homes or other surrounding structure. (Leong et al. 2016) This application and idea can be used in our proposal project because observing plants near window sills will account for some of the arthropods found and studied.

Role of Vasopressin in Prairie Voles

Submitted by malberigi on Tue, 04/10/2018 - 16:31

Vasopressin is a neurotransmitter that synapses on V1a receptors in the brain that provide the prairie vole (PV) with positive feedback for its monogamous mating behavior.  This V1a receptor is encoded by the avpr1a gene, which contains more DNA material in the PV than in the meadow vole and might account for more abundant V1a receptors in the prairie vole brain.  In order to test this hypothesis, the researchers inserted extra copies of the avpr1a gene into male PVs to see if more V1a receptors were produced.  The male PV with extra receptors did form stronger relationships with females, even if they had not previously mated with them proving this genes significance in PV monogamy

Abstract

Submitted by lgiron on Tue, 04/10/2018 - 14:32

Using a simple planarian trap to capture planarians, we selected eight locations local to the University of Massachusetts Amherst, to set up the planarian traps. Upon collection of the specimens at these different locations, along with the observation of the any vegetation, deadfall, sunlight, water flow speed,and soil make up, we will identify the different species of planarians using size, color and head shape. Once identified, we will observe if there is a correlation between the species that inhabit the body of water with the environmental and aquatic characteristics mentioned, or if there is no correlation between these variables. In the end determining two main points, the species richness and diversity and if it correlates with environmental factors or not.

Project proposal 477H Possible outcomes

Submitted by oringham on Tue, 04/10/2018 - 14:10

It is possible rate of cellular movement will follow the predictions made in our hypothesis, or that it will not. The average rate at which cells migrate in order to heal the wound could be roughly the same throughout the entire process. Additionally, there could be a large discrepancy in rates of cells based on their position relative to the wound, in which case studying average rate of movement over time would not be an effective way to capture cellular movement rate.

              Displacement patterns in cellular movement across the wound could follow the predictions made in our hypothesis, or could demonstrate large differences in total displacement over time, based on a cells location relative to the wound. It is possible that cells closer to the wound will move a greater distance over time than cells further away from the wound.

Microbial Growth Discussion

Submitted by mkomtangi on Tue, 04/10/2018 - 13:22

For the microbial growth lab, I hypothesized that E.coli, would have the best optimal growth at 37 degrees celsius, as this is the desired temperature for E. coli growth, especially in the cells of humans, animals, and other eukaryotic organisms. I also expect that the k value for 37 degrees celsius which indicates the rate of how many generations occur per time period to be the highest because, it will form the most generations, and the G value which indicates the rate of one cell dividing into two cells to be the lowest because E.coli will divide the fastest at 37° celsius.

 

Result Analysis

Submitted by tedarling on Tue, 04/10/2018 - 12:58

For experiment 1, the data suggest that the type of substrate did indeed affect survival of
guppies, which altered spot brightness over time. The muddy substrate had the largest average
increase in spot brightness, 3.5. The vegetative substrate had the smallest average increase in
spot brightness, 2.0 and sandy substrate had an increase of 3.0.

For experiment 2, the data suggest that as predation increases, the spot brightness of
guppies decreases over time. For the trial with no predators, there was an average increase in
spot brightness of 7.0. For the highest level of predation, there was an average decrease in spot
brightness of 1.5. All 3 other trials of varying predation levels also support the hypothesis.

Estefication Lab Discussion

Submitted by benjaminburk on Tue, 04/10/2018 - 11:23

3-methyl- 1-butanol and propionic acid were reacted with each other in an esterification process in hopes of synthesizing isopentylpropionate. The procedure described above was followed without error and the isopentylpropionate was synthesized with a 62.04% yield. The final liquid had a fruity scent similar to that of bananas. The IR graph supports the purity of the compound considering the peaks that correspond with an ester at 1739.79 and a carboxylic acid 2958.8. However there is no peak corresponding with an alcohol group, which is expected because isopentylpropionate does not have an alcohol group.

Esterfication Lab Procedure

Submitted by benjaminburk on Tue, 04/10/2018 - 10:37

.97 mL of propionic acid and 1.19 mL of 3- methyl- 1- butanol were added to a 5 mL round bottom flask. 4 drops of sulfuric acid were then added to the flask and the contents were thoroughly mixed. Boiling chips were added to the flask and the flask was attached to the distillation head and placed a 45 degree angle on the sand bath. The flask was brought to a slight flask for 15 minutes. After 15 minutes the contents of the side arm were gently poured back into the flask, being sure that no water was returned. This process was repeated two more times, after which the mixture was allowed to cool. 1 mL of water was added to the mixture and mixed thoroughly, the aqueous layer was removed and placed in the waste beaker. 1 mL of sodium bicarbonate was then added and mixed in thoroughly before removing the aqueous layer again. This process was repeated once more. Then 1 mL of saturated aqueous sodium chloride was added, mixed and the aqueous layer was removed one final time. A dozen anhydrous CaCl2 spheres were added to the mixture and the mixture was allowed to “dry” for 10 minutes. The remaining liquid after the 10 minutes was removed via pipet and put into a dry tarred vial. The weight, smell, percent yield and IR graph were all obtained and recorded for the remaining liquid.

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