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Purdue University

2020

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Articles 1 - 13 of 13

Full-Text Articles in Life Sciences

A Review Of The Effects Of Dietary Restriction, Dehydration, And Caffeine Withdrawal On Cognition: Implications For A Disabled Submarine Scenario, Sarah Chabal Dec 2020

A Review Of The Effects Of Dietary Restriction, Dehydration, And Caffeine Withdrawal On Cognition: Implications For A Disabled Submarine Scenario, Sarah Chabal

Journal of Human Performance in Extreme Environments

In the event that submariners become trapped aboard a disabled submarine (DISSUB), they must perform a multitude of cognitively demanding tasks in order to maximize their likelihood of survival. During this time, submariners will also be forced to endure poor living conditions, including drastic changes to their nutrition. These nutritional changes have the potential to impair submariners’ cognitive functioning and affect operational performance, which could jeopardize survival; however, the effects of DISSUB nutrition on cognitive performance are not well understood. This review first describes the unique nutritional conditions that submariners will experience in a DISSUB scenario, including the change to …


Antibacterial Properties Of Common Gap Plants From Monteverde, Costa Rica, Hannah Pletcher Aug 2020

Antibacterial Properties Of Common Gap Plants From Monteverde, Costa Rica, Hannah Pletcher

The Journal of Purdue Undergraduate Research

No abstract provided.


Using Cold War-Era Satellite Imagery To Inform Historic Land Cover Classification, Nicholas Hamp-Adams Aug 2020

Using Cold War-Era Satellite Imagery To Inform Historic Land Cover Classification, Nicholas Hamp-Adams

The Journal of Purdue Undergraduate Research

No abstract provided.


Eating Broccoli: Can It Protect Cancer Patients From Radiation Skin Damage?, Huong Pham Aug 2020

Eating Broccoli: Can It Protect Cancer Patients From Radiation Skin Damage?, Huong Pham

The Journal of Purdue Undergraduate Research

No abstract provided.


Comparative Developmental Toxicity Of Perfluorooctanesulfonic Acid (Pfos) And Its Alternative Perfluorobutanesulfonic Acid (Pfbs), Hanna King Aug 2020

Comparative Developmental Toxicity Of Perfluorooctanesulfonic Acid (Pfos) And Its Alternative Perfluorobutanesulfonic Acid (Pfbs), Hanna King

The Journal of Purdue Undergraduate Research

No abstract provided.


Methylmercury Cytotoxicity On Developing Neuronal Lineages And Differences In Susceptibility Based On Media Type, Madeline Henley Aug 2020

Methylmercury Cytotoxicity On Developing Neuronal Lineages And Differences In Susceptibility Based On Media Type, Madeline Henley

The Journal of Purdue Undergraduate Research

No abstract provided.


Characterization Of Neuronal Differentiation And Activity In Human-Induced Pluripotent Neural Stem Cells, Allison Biddinger Aug 2020

Characterization Of Neuronal Differentiation And Activity In Human-Induced Pluripotent Neural Stem Cells, Allison Biddinger

The Journal of Purdue Undergraduate Research

No abstract provided.


Relating Green Space Characteristics To Student Housing Habits, Joshua Randall Aug 2020

Relating Green Space Characteristics To Student Housing Habits, Joshua Randall

The Journal of Purdue Undergraduate Research

No abstract provided.


Discoveries In Aerosol Science: Characterization Of Nanoparticles Emitted From Metallic Coils In Electronic Cigarettes, Kaushal Prasad Aug 2020

Discoveries In Aerosol Science: Characterization Of Nanoparticles Emitted From Metallic Coils In Electronic Cigarettes, Kaushal Prasad

The Journal of Purdue Undergraduate Research

Electronic (e-) cigarettes, also known as electronic nicotine delivery systems, are battery-operated devices that are growing in popularity worldwide. Although e-cigarettes are known to be safer than traditional cigarettes, their potential health risks have not been extensively reviewed yet. In this study, aerosol nanoparticles generated from e-cigarette heaters were characterized. Kanthal A1 (iron + chromium + aluminum) coils, without nicotine solution or a wick, were installed in an e-cigarette atomizer. The operating conditions were varied coil resistances (0.1–1.0 Ω), a set applied power (10 W), and a stable duty cycle (50%: 5 s on, 5 s off ). The size …


Investigating Photosynthetic Stability: Relation Between Thylakoid Lipid Content And The Stability Of The Cytochrome B6f Complex, Marina Mehling Aug 2020

Investigating Photosynthetic Stability: Relation Between Thylakoid Lipid Content And The Stability Of The Cytochrome B6f Complex, Marina Mehling

The Journal of Purdue Undergraduate Research

The cytochrome b6f complex is an enzyme found in plants, cyanobacteria, and green algae that catalyzes the transport of electrons in the rate-limiting step of oxygenic photosynthesis. This dimeric complex has an extensive lipid architecture that is primarily composed of five distinct lipid classes: monogalactosyl diacylglycerol (MGDG), digalactosyl diacylglycerol (DGDG), phosphatidyl glycerol (PG), monoglucosyl diacylglycerol (GlcDG), and sulfoquinovosyl diacylglycerol (SQDG). While these lipid classes have been identified, their precise role in the function of the cytochrome complex are only beginning to be understood. Mechanisms describing the relation between thylakoid lipid content on the stability of the b6 …


The Effects Of Adolescent Chronic Mild Stress: In Female Wistar-Kyoto Rats, Anna Hallowell Aug 2020

The Effects Of Adolescent Chronic Mild Stress: In Female Wistar-Kyoto Rats, Anna Hallowell

The Journal of Purdue Undergraduate Research

Despite years of research to understand under-lying mechanisms and develop more effective treatment approaches for mood disorders, numerous challenges exist. Many chronic stress models are used to study mood disorders, how-ever the majority have been established with adult males. This is problematic considering that affective disorders are more common in women, and generally develop during late adolescence. Studies have indicated fundamental behavioral, physiological, and neural differences between males and females in response to the same external stressors, furthering a need to develop sex-specific paradigms to accurately model the etiology of mood disorders in females. The Wistar-Kyoto (WKY) rat strain is …


Producer Willingness To Pay For Enhanced Packaging To Prevent Postharvest Decay Of Strawberries, Brian Coffey, Valentina Trinetta, Londa Nwadike, Umut Yucel Apr 2020

Producer Willingness To Pay For Enhanced Packaging To Prevent Postharvest Decay Of Strawberries, Brian Coffey, Valentina Trinetta, Londa Nwadike, Umut Yucel

Journal of Applied Farm Economics

We surveyed specialty crop producers in Kansas and Missouri to determine producer willingness to pay for new active packaging technology that prevents postharvest loss and increases shelf life. The survey also asked demographic questions to determine the producer and operation traits for this growing segment of production agriculture. More than half of those surveyed were female, and 60% were under 50 years of age. Smaller operations tend to utilize direct marketing and social media activity more than larger operations. Parametric willingness to pay estimates are approximately $0.39 per cardboard flat to purchase the antifungal film that increases shelf life of …


Financial Implications From Contracting Avian Influenza In A U.S. Broiler Operation, Jordan M. Shockley, Tyler Mark, Kenneth H. Burdine, Levi Russell Apr 2020

Financial Implications From Contracting Avian Influenza In A U.S. Broiler Operation, Jordan M. Shockley, Tyler Mark, Kenneth H. Burdine, Levi Russell

Journal of Applied Farm Economics

This essay evaluates the on-farm financial impacts of an avian influenza outbreak on a U.S. commercial broiler operation. It investigates how the timing and length of the outbreak impacts farm financial performance for two different farmers, beginning and experienced. Results indicate that a beginning farmer is more susceptible to significant financial losses. Both farmers are financially impacted more when avian influenza is contracted early in the investment and when the contamination and eradication of the virus was prolonged. Furthermore, this essay highlights the problems of using standard financial measures for analyzing disease outbreaks under production contract arrangements and presents alternative …