369 projects whose affiliated fair was here, most recently in 2026.
ISEF records a state or province for some finalists and not others, so these counts do not add up to the country total.
369 projects · showing 211–240
ISEF · 2019
Mathematics
Inadequate hospitalization projections increase the cost of health care and reflect the ineffectiveness of the healthcare services in the primary care setting (Mkanta, 2016). Studies have co…
ISEF · 2019
Materials Science
Engineered porous materials possess large surface area. Of the many types of these materials, this research focuses on the study of porous metallic ones. Through alloys of noble metals (e.g.…
ISEF · 2019
Microbiology
Acne is a chronic, inflammatory, skin condition that causes spots and pimples, which manifest mostly on the face. It affects nearly 80% of adolescents and young adults (NCBI). One of the man…
ISEF · 2019
Microbiology
Nowadays most of the bacteria are showing resistance against most of the antibiotics because they’ve been overused. Because of this, this investigation focused on studying the bacteriostatic…
ISEF · 2019
Energy: Chemical
In this research project, the best electrodes spacing for a hydrogen gas generation as a clean energy source was investigated. To generate hydrogen gas, the process called electrolysis was a…
ISEF · 2019
Biomedical and Health Sciences
Cancer is one of the main causes of morbidity and mortality in the world. Among the types of cancer, ovarian cancer has the lowest prospect of survival of all female cancers, with survival r…
ISEF · 2019
Energy: Chemical
Biogas is a fuel obtained in a biological way by the anaerobic fermentation of organic matter (biomass), which contains mainly methane, carbon dioxide and other gases such as hydrogen, nitro…
ISEF · 2019
Biomedical and Health Sciences
According to Demographic Register of Puerto Rico (2011-2018), colorectal cancer had an incidence of 12.70 % among men and 11.50 % among women. For this reason, is important to found new alte…
ISEF · 2019
Animal Sciences
Honey bees rely heavily on their circadian clock to achieve the orientation based on the solar compass and the "time memory", which allows them to locate food resources and return to the hiv…
ISEF · 2019
Biomedical Engineering
Silica nanoparticles (SiO2) can selectively and safely destroy tumor cells when loaded with ruthenium complexes, reducing the toxicity of antitumor therapy. Approximately 44,330 patients wit…
ISEF · 2019
Biomedical and Health Sciences
Rosemary (Rosmarinus officinalis L.) is a common herb, employed in traditional medicine for its healing properties. One of its active compounds, Rosmarinic acid, is a well known natural anti…
ISEF · 2019
Biomedical and Health Sciences
This investigation came to development because patients with diabetes type 2, suffer various side effects due to insulin injection and prescribed drugs by their specialized doctors. The purp…
ISEF · 2019
Microbiology
Sustainable chemistry, consists of chemistry directed towards the design of chemical products and processes where the reduction or elimination of products of harmful materials is implied for…
ISEF · 2019
Microbiology
The increase of antibiotic resistance poses a threat to the global population. Many consumers are using products such as colloidal silver as an alternative to treat bacterial infections. The…
ISEF · 2019
Engineering Mechanics
According to Salas et.al. (2016) since 2002, 689 children have died for being forgotten in a vehicle in the United States. The main objective of this investigation is to determine if it is p…
ISEF · 2018
Animal Sciences
The neonicotinoids pesticides is the best according to its efficiency in the elimination of pests. These pesticides cause the reduction of up to 40% of the sperm production of the Apis melli…
ISEF · 2018
Physics and Astronomy
A projectile-resistant material is one that can decrease the velocity of a projectile by distributing its impact force. Aramid fibers are woven with long-chain synthetic polyamide composite…
ISEF · 2018
Environmental Engineering
Eutrophication is the result of an increment of nutrients in bodies of water. This produces an explosive growth of natural organic matter (NOM). As a result, the concentration of oxygen dimi…
ISEF · 2018
Animal Sciences
After major nature disturbances such as hurricanes, flora is damaged, as a consequence honey bees too. The objective of this research was to identify which wild plants are preferred by honey…
ISEF · 2018
Systems Software
Autism is a brain development disorder that is accompanied by a variety of indicators that include problems with communication and social interactions, as well as repetitive behavior (Hodge,…
ISEF · 2018
Biomedical Engineering
In an electrocardiogram (ECG) the electrodes on the different parts of the body detect electrical impulses coming from different directions within the heart (Henderson, 2017). Hence, an ECG…
ISEF · 2018
Earth and Environmental Sciences
The objective of this research was to determine the effect of red mangrove leaves extract on the growth of Escherichia coli bacteria. The Jobos Bay National Reserve of Estuary Investigations…
ISEF · 2018
Environmental Engineering
Having a source of potable water is essential for every country’s survival. Therefore, people need to know how to supply themselves with purified drinking water in case of a crisis. As in Pu…
ISEF · 2018
Chemistry
Supercooling occurs when a liquid obtains a temperature lower than its freezing point without exhibiting a phase change from liquid to its solid state. The properties of liquids exhibiting t…
ISEF · 2018
Mathematics Second Award
A finite dynamical system (FDS) is a function f: F_m^n?F_m^n, where F_m^n is a set of m^n elements. Due to its applications to gene regulatory networks, it is desirable to develop mathematic…
ISEF · 2018
Engineering Mechanics
After Hurricane Maria devastated the island's power grid. Most of the people were left without electricity for a long time. It is not cost effective to invest from $500-$2,000 plus $504 mont…
ISEF · 2018
Mathematics
Although the infinite sum of the reciprocals of Mersenne primes has already been approximated to 0.51645417894, that result has not been compared with (a) the infinite sum of the reciprocals…
ISEF · 2018
Mathematics
In classical logic, formulas are constructed using a given alphabet composed of connectives and prime statements. The prime statements are assigned one of two truth values: {t,f} and the con…
ISEF · 2018
Behavioral and Social Sciences
Gestalt movement was born in Germany under the authorship of researchers Wertheimer, Koffka and Köhler, during the first decades of the twentieth century. These researchers proposed that oth…
ISEF · 2018
Chemistry
Ciprofloxacin is a fluoroquinolone antibiotic. Common water treatments are not able to degrade it properly, causing a bioaccumulation in nature, animals and humans. Being a genotoxic contami…