Original Article 

The Effect of Nanosilver on Nymphaeaceae (Water Lily) Germination and Growth

Davin Ban, Qin Gao, Tamanna Hosen, Lingyan Wang, Jing Zhu

J. Dawn. Research, Vol. 3, pp 91-108, 2021

Silver nanoparticles, also known as nanosilver, are nanoparticles of silver ranging from 1 to 100 nm in size. Nanosilver is often used in consumer products for their anti-bacterial properties, and stands to be a threat to the environment -especially the aquatic environment- through pollution. Such pollutants constitute a major threat to the interdependent aquatic ecosystems, which is already in need of expeditious attention and treatment from other pollutants. However, due to inconclusive or conflicting findings from prior studies, it is hard to conclude the possible ramifications that nanosilver may have on the aquatic environment. Hence, the purpose of this study was to examine the germination and growth of water lilies when exposed to nanosilver. […]

Original Article 

New Computational Model For Mitosis To Save Lives From Cancer

Michael Batavia

J. Dawn. Research, Vol. 3, pp 73-90, 2021

In this paper, individualized pre-diagnoses to the many Americans affected with an abnormal form of mitosis in the breast (breast cancer) using a custom convolutional neural network (CNN) are proposed. It was predicted earlier this year that 281,550 cases of invasive breast cancer would be detected in women and 44,130 of them would be expected to die from the disease, making the disease the 2nd leading cause of cancer death in women. Although the effects of breast cancer can be limited with treatments such as chemotherapy, the cancer must first be diagnosed before being treated. As the five-year survival rate declines among untreated patients from 93% at stage 0 cancer to 15% at stage 4 cancer, it is critical that the cancer be diagnosed as early as possible before treatments become ineffective. Using a custom parallel distributed CNN with synchronous gradient descent, this research presents 83% validation accuracy and a 89% ROC-AUC score, 10% better than pathologist classification in both early and later stages of cancer, in order to classify benign and metastatic lymph node tumors in the breast for patients of all stages and determine where cancer cells have spread for effective treatment on those areas. […]

Original Article 

The Effectiveness of Laminaria Digitata on Mitigating Ocean Acidification Through pH Analysis

Brigette Belenky, Selma Velovic, Nicole Weese

J. Dawn. Research, Vol. 3, pp 61-72, 2021

In recent years CO2 levels have been rising worldwide, causing increased acidification of ocean water. Currently the average oceanic pH is 8, and while it is known that ocean water is naturally slightly alkaline, CO2 emissions continue to rise and the ocean continues to absorb these emissions. This leads to a decrease in oceanic pH as it continues to become more acidic. The pH levels of the ocean have already fallen by 0.1 in the last 200 years. A 0.1 decrease may not seem drastic but consider the fact that the human body has a natural pH of around 7.4, and if it drops to 7.2 (just a 0.2 decrease) it may lead to death. A seemingly insignificant difference in pH level can have drastic effects on the human body, thus, the same can be considered when it comes to the ocean. Ocean acidification has already impacted many different forms of marine life and will continue to do so if no method is found to prevent the further acidification of ocean water. In the following experiment, Laminaria (kelp) was tested for capabilities of neutralizing the pH of ocean water. To combat the current ocean acidification conflict, recently, macroalgaes have been in the spotlight for its capabilities of absorbing CO2 from ocean water with remarkable results. Laminarias have proven to be particularly effective at absorbing CO2 and restoring pH levels of ocean waters, justifying its use in this experiment. Through pH analysis, the effectiveness of the Laminaria was measured over a 21 day time frame, and data was collected. […]

Book of Abstracts 

Selected Abstracts from the New York City Science, Technology, Engineering, and Mathematics Fair

The Terra New York City STEM Fair

J. Dawn. Research, Vol. 3, pp 21-60, 2021

The New York City (NYC) Science, Technology, Engineering, and Mathematics (STEM) Fair's mission is to celebrate and highlight the innovation of NYC's high school scholars conducting STEM research and foster connections. […]

Original Article 

The Effects of Momordica Charantia on the Regeneration of Dugesia Tigrina

Miriam Yushavaiev, Areej Amir, Felicity Liu

J. Dawn. Research, Vol. 3, pp 3-19, 2021

Momordica Charantia, also known as bitter melon, is a unique fruit found in subtropical and tropical regions worldwide. The plant is a long vine that belongs to the Cucurbitaceae family, and it also has a characteristically bitter taste. Bitter melon is rich in nutrients such as vitamin A, vitamin C, iron, and phosphorous, as well as multiple active chemicals, phenolic acids, and flavonoids. All of these traits make bitter melon useful in medicine as an anti-diabetic, an anti-inflammatory agent and as a wound-healing agent; however, its effects on regeneration have not been explored. Planaria are freshwater flatworms that are known for its ability to regenerate. Their stem cells are unique because they have adult stem cells that express pluripotency. This experiment can further test the potential of the bitter melon extract on stem cell regeneration so that they can be better-cultured outside of the body in large numbers. […]

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