Life Sciences

Lyophilization is a process in which water transforms from a solid to a gaseous aggregate state in a medium of vacuum and low temperature. In this type of processing of natural extracts, the biologically active substances in their composition remain unchanged. The continuous processing (24 - 72 hours), including freezing and drying in vacuum conditions and temperature regime from - 30℃ to + 30℃, is associated with a high energy consumption, which is a disadvantage of the method.

Objective: This study aimed to know the occurrence of gestational syphilis cases in a municipality in the Brazilian Amazon from a historical series of cases. Method: A descriptive cross-sectional analysis with a quantitative approach was carried out from the official gestational syphilis notifications between 2015-2019, in the municipality of Ananindeua, state of Pará, northern Brazil. Results: Notified 421 cases of syphilis in pregnant women in the given period, with prevalence of cases between 2015 and 2016 (43%).

Magnesium hydroxide is an important inorganic compound that is largely used in many industrial processes. It can beobtained through the hydroxylation of magnesia, followed by comminution and drying step. In this context, the present work aims to evaluate if theexcess of hydroxylation reaction heat can be used in the subsequent step of product drying, developing and simulating the mass and energy balances in the system. Hydroxylation tests were carried outwith magnesia from mineral source, in a non-adiabatic reactor with25 % initial solids concentration.

No contexto das novas modificações econômicas, sociais e educacionais, surgiu a necessidade de flexibilização dos currículos de graduação, viabilizando a utilização de novas metodologias de ensino a fim de assegurar uma formação de qualidade. Assim, sendo necessário acompanhar a visão dos graduados ponderando a eficácia do ensino nas Instituições de Ensino. O estudo objetivou analisar à satisfação com as metodologias de ensino adotadas e a formação do Curso de Graduação. Estudo do tipo delineamento transversal envolvendo egressos do período de 2016 a 2018. Os dados foram coletados via web.

Nutritional Psychiatry is a term used to describe a field of research, and a way of approaching the prevention and treatment of mental illness, which focuses on diet and nutrition. Among the complexity of the determinants of Mental Health problems, the emerging evidence from Nutrition shows relevant factors in the high prevalence of mental disorders, suggesting that diet is as important for Psychiatry as for Cardiology and Endocrinology.

Alzheimer's disease (AD) is considered the most prevalent form of dementia in the elderly and represents the fifth leading cause of death in this population. In addition, free radicals seem to play a fundamental role in brain aging, since several studies have found an association between cytotoxicity promoted by the accumulation of βA and oxidative stress. In this context, Resveratrol (RSV) is a polyphenol that has antioxidant and anti-inflammatory activity. However, its mechanism of action in elderly AD is still unclear.

The melliferous flora around three apiaries of 6 to 10 hives in the Department of Toumodi (Côte d’Ivoire) was studied with the help of floristic inventories in the plant formations of the study area. Observations were made within a radius of 1 km around each apiary in 3 villages of Toumodi Department (Akakro-Nzikpli, Bédressou and N'Guessankro). The melliferous flora is composed of 157 species in 127 genera and 42 families. The Fabaceae, with 38 species (24.20%) is the best represented.

The objective of this work was to evaluate the microbiological quality of honey from Tíuba, Melipona fasciculata, produced in a mining company, where the air particulate index is high, in the city of São Luís, Maranhão. Seventy honey samples from 15 M. fasciculata bee hives from the mining company Meliponário were analyzed during the period from 2017 to 2018. Of the analyzed samples, 14% had contamination by Molds and Yeasts, while Aerophilic Mesophilic Bacteria were detected in 13% of the samples.

The find for the optimal slide of water to bring to the plot is important in order to limit the recharge of the water table close to the surface. The slide of water brought into the plots is estimated from the reading of the water height before and after each irrigation series on limnimetric scales. Monitoring of the water surface and the salinity of the water and soil made it possible to assess the water balance and surface salt deposits.

Lectins are a group of carbohydrate-binding proteins found in all organisms. Among these proteins, a species that stands out for having several biological activities is Vatairea guianensis lectin (VGL). Techniques involving antibodies can range from classic immunochemistry assays to advanced microscopy techniques. Thus, they can become valuable biotechnological tools since they are able to specifically recognize epitopes of the target molecules. Immunoglobulins are proteins whose main function is to bind with antigens foreign to the individual, in order to neutralize them.