Browse Articles

Differentiation of Waste Plastic Pyrolysis Fuels to Conventional Diesel Fuel

Jewison et al. | May 25, 2018

Differentiation of Waste Plastic Pyrolysis Fuels to Conventional Diesel Fuel

Plastic pollution and energy shortages are pressing issues in today’s world. The authors examined whether waste plastic pyrolysis fuels are similar to conventional diesel and, thus, a plausible alternative fuel. Results showed that waste plastic pyrolysis fuels did not match up to diesel overall, though several fuels came close in calorific value.

Read More...

Isolation of Microbes From Common Household Surfaces

Gajanan et al. | Jan 27, 2013

Isolation of Microbes From Common Household Surfaces

Microorganisms such as bacteria and fungi live everywhere in the world around us. The authors here demonstrate that these predominantly harmless microbes can be isolated from many household locations that appear "clean." Further, they test the cleaning power of 70% ethanol and suggest that many "clean" surfaces are not in fact "sterile."

Read More...

The Effects of Birth Order on Indicators of Academic Success Among High School Students of Multiple Ethnicities

Geil et al. | Jan 30, 2012

The Effects of Birth Order on Indicators of Academic Success Among High School Students of Multiple Ethnicities

In many cultures and for many centuries, the implications of birth order have been examined. Birth order has been shown to affect personality, accomplishments, and even career choice. This study investigated the impact of birth order and ethnicity on two measures of academic success in high school: a student’s grade point average (GPA) and the number of Advanced Placement (AP) classes he or she took.

Read More...

The effect of pH levels on the growth rate of diatoms

Shao et al. | Oct 14, 2026

The effect of pH levels on the growth rate of diatoms
Image credit: Cristian Palmer

Here the authors investigated how climate change-induced ocean acidification may impact harmful micro algae such as diatoms that produce large amounts of oxygen in the atmosphere and serve as important food sources for other marine organisms. They evaluated diatom growth rates at current seawater pH levels (8.1) alongside reduced pH levels (7.5 and 6.8). The findings indicate that while diatoms maintain steady growth under moderate acidification (pH 7.5), severe acidification down to pH 6.8 significantly limits their ability to adapt and thrive.

Read More...

In vitro effects of cosmetic products on the growth of skin-resident bacteria

Relia et al. | Sep 20, 2026

<i>In vitro</i> effects of cosmetic products on the growth of skin-resident bacteria

This study investigated how 18 commonly used cosmetic products affect the growth of two skin-resident bacteria, Staphylococcus epidermidis and Micrococcus luteus. At higher concentrations, half of the tested products inhibited at least one bacterial species, suggesting that some cosmetics may disrupt the skin microbiome and its natural balance.

Read More...

Comparison of shower filters for reducing total residual chlorine under household flow conditions

Lee et al. | Sep 19, 2026

Comparison of shower filters for reducing total residual chlorine under household flow conditions
Image credit: Micheile Henderson

This study compared two commercial shower filters and three individual filtration media to evaluate their ability to reduce total residual chlorine under household flow conditions. By identifying which materials most effectively reduce chlorine during regular shower use, this research provides practical information for consumers and offers guidance for designing more affordable and reusable shower filtration systems.

Read More...

Development of a pH-sensing hydrogel wound dressing for early infection monitoring for all skin color types

L. Chong et al. | Sep 07, 2026

Development of a pH-sensing hydrogel wound dressing for early infection monitoring for all skin color types

This paper develops a gelatin-based hydrogel dressing infused with bromothymol blue dye that visibly changes from yellow to blue as wound pH rises from 5.0 to 8.0, signaling possible infection. The color shift was visually detectable and statistically significant across all six Fitzpatrick skin tones, suggesting a low-cost ($0.40/dressing) tool for early infection monitoring in settings with limited access to care.

Read More...

Deep learning for pulsar detection: Investigating hyperparameter effects on TensorFlow classification accuracy

Upadhyay et al. | Jan 31, 2026

Deep learning for pulsar detection: Investigating hyperparameter effects on TensorFlow classification accuracy

This study investigates how the hyperparameters epochs and batch size affect the classification accuracy of a convolutional neural network (CNN) trained on pulsar candidate data. Our results reveal that accuracy improves with increasing number of epochs and smaller batch sizes, suggesting that with optimized hyperparameters, high accuracy may be achievable with minimal training. These findings offer insights that could help create more efficient machine learning classification models for pulsar signal detection, with the potential of accelerating pulsar discovery and advancing astrophysical research.

Read More...