243 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.
243 projects · showing 121–150
ISEF · 2020
Energy: Sustainable Materials and Design
Brazilian livestock accounts for 18.6% of the use of the national territory, due to its impact on the current scenario, I propose to use animal manure for the renewable production of electri…
ISEF · 2020
Materials Science
One of the problems faced by farmers is the devaluation of their products in the post-harvest period. Bioconstructions for storing agricultural products are sustainable and cheap alternative…
ISEF · 2020
Behavioral and Social Sciences
For having the biggest regional influence, Brazil has become the main destiny of immigrants who left Haiti after the massive earthquake in 2010. This movement to Brazil characterized the lar…
ISEF · 2019
Biochemistry
Brazil is the world's largest pesticide consumer. The use of these products in agriculture is a serious public health problem that generates various diseases such as cancer, congenital malfo…
ISEF · 2019
Plant Sciences
Leucaena leucocephala, popularly known as "Leucena", is an exotic plant that has spread throughout the country, after being introduced in Brazil to complement the feeding of cattle. In Campo…
ISEF · 2019
Embedded Systems
Amyotrophic Lateral Sclerosis (ALS) is a neurodegenerative disease that affects the motor neurons responsible for voluntary movement. It is characterized by progressive loss of muscle streng…
ISEF · 2019
Materials Science
Plastics are very used, because of the great degradation time, they are very harmful to the environment. A common container to accommodate seedlings are black polyethylene bags, however, the…
ISEF · 2019
Translational Medical Science Fourth Award
Catheters are the most used devices in treating hospitalized patients and in hemodialysis procedures. However, its use represents a potential risk for blood infections (possibly sepsis or se…
ISEF · 2019
Plant Sciences
This project proposes alternative and innovative ideas for the use of manure released by animals such as fertilizer, providing the rural worker increase their income and propose better quali…
ISEF · 2019
Chemistry
Voltammetry is a technique based on the application of potential to a working electrode immersed in an electrochemical cell. Depending on the applied potential, compounds in the cell may und…
ISEF · 2019
Engineering Mechanics
Nowadays, numerous researchers around the world devote part of their work to the collecting of samples in order to develop researches, which can increase the product efficiency (mainly food…
ISEF · 2019
Plant Sciences Third Award
Brazil is the biggest orange producer in the world and the state of Paraná is the third biggest producer in Brazil. Because this fruit has low shelf life, agrochemicals are widely used to co…
ISEF · 2019
Environmental Engineering
In Brazil, the consumption of coconut products (Cocos Nucifera) has grown substantially in recent years. This contributed significantly to the intensification of fruit production and cultiva…
ISEF · 2019
Robotics and Intelligent Machines
The present research involves the areas of mechanical engineering and assistive technology. It is a technological study on the feasibility of building an electromechanical device with severa…
ISEF · 2019
Materials Science
Vitreous foam has been gaining ground in the industrial sector, being increasingly applied as thermal insulation in industrial constructions. The main raw material for glass foam is glass, a…
ISEF · 2019
Physics and Astronomy
My aim was to investigate the relationship between the square root of a parachute’s mass, the inverse of the square root of its area and its design with terminal velocity in order to assess…
ISEF · 2019
Environmental Engineering
Eutrophication is a process triggered by the enrichment of the aquatic environment with nitrogen and phosphorus nutrients - both descendent of human effluents and agricultural activities. Du…
ISEF · 2019
Cellular and Molecular Biology
This project investigates the impact of Diethyl phthalate on cells of Allium cepa L, by measuring alterations in mitotic index, of the organism’s roots. The main factor that justifies this i…
ISEF · 2019
Embedded Systems
Our way of walking is directly related to postural defects, deviations in joints and muscular imperfections. It is known that, when treading, we can apply up to eight times our weight on the…
ISEF · 2019
Environmental Engineering
Improper disposal of expanded polystyrene (EPS) can cause major environmental and social problems, as it takes 150 years or more to degrade. Knowing that there is no way to inhibit its consu…
ISEF · 2019
Biochemistry Fourth Award
The brazilian popular medicine is an empirical knowledge, passed down through generations, that associates the use of plants and other natural elements for diseases treatment. As an example,…
ISEF · 2019
Embedded Systems
The purpose of this project was to test if a low-cost student-designed technological invention was capable of aiding the visually impaired in overcoming regular obstacles that can be encount…
ISEF · 2019
Energy: Chemical
Modern society realizes the great need for environmentally friendly energy sources. Hydrogen was long known as a clean energy option but it is hardly found in nature as a pure substance. The…
ISEF · 2019
Materials Science
Synthetic polymers are responsible for environmental damages. Bacterial cellulose is an alternative biopolymer highlighted for its unique physicochemical properties. Macadamia nut’s consumpt…
ISEF · 2018
Plant Sciences
The world population grows approximately 83 million people per year, and if this progression continues, by 2050 it will reach more than 9 billion people. To meet their needs, it would be nec…
ISEF · 2018
Embedded Systems Third Award
Available water dispensers lack effective automation, which often leads to overflows when users do not stop the machines on time. Therefore, the goal of this project was to develop a mechani…
ISEF · 2018
Robotics and Intelligent Machines
Autonomous indoor unmanned aerial vehicles (UAV) navigation requires mapping techniques to build an accurate space estimation for flying. This work proposes a system to map an indoor environ…
ISEF · 2018
Chemistry Third Award
Benzodiazepines are depressants that produce sedation, hypnosis and relaxation, reducing anxiety, muscle spams and seizures. Such drugs are available with prescription. Benzodiazepines slow…
ISEF · 2018
Plant Sciences
The medicinal plant Stryphnodendron adstringens is a native species of the Brazil. The objective of this research was to investigate the biological activities of the hydroalcoholic extract o…
ISEF · 2018
Environmental Engineering
The Brazilian textile industry has been a highlight of the global economy. However, this industry generates great quantities of effluents that present high concentrations of dyes and chemica…