Pesquisare - A Revista Eletrônica da UFOB
<span style="color: #2c3e50; font-family: georgia,serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: justify; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">A Revista Pesquisare é uma publicação eletrônica semestral editada pela Universidade Federal do Oeste da Bahia, de cará<span id="OBJ_PREFIX_DWT105_com_zimbra_date" class="Object" style="color: #336699; text-decoration: none; cursor: pointer; font-family: georgia,serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: justify; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;">ter<span style="color: #2c3e50; font-family: georgia,serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: justify; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;"> inter/multidisciplinar e voltada à difusão de artigos, ensaios, resenhas e demais escritos de cunho científico desenvolvidos nas diversas áreas do conhecimento. O objetivo principal da Pesquisare é contribuir na divulgação do conhecimento produzido dos diversos campos do saber humano, com ênfase – mais não exclusivamente – nas Ciências Exatas e Engenharia, Humanidades, Ciências Biológicas e da Saúde, Ciências Agrárias, Inovação, Arte, Cultura e Comunicação.
Coleção das artes plásticas em Barreiras: catálogos virtuais da pintura, da escultura e da fotografia
This project aimed to catalog and discuss the three most recurrent artistic languages in the city of Barreiras in order to gather relevant information about local artists and their art productions. At the end of this process, the collected information was compiled to be disclosed in a website with the same name of the project.
Copyright (c) 2019 Pesquisare - A Revista Eletrônica da UFOB
Um estudo DFT das propriedades intermoleculares dos complexos LiH···HX (X=F, Cl, CN, NC e CCH)
Historically, the chemistry profile of the hydrogen bond is widely known by the electronegative atoms as F, O and N. However new theoretical studies revealed the interaction of complexes formed by alkali hydrides and halo acids. Thus, this work aimed to analyze the properties, parameters of geometry and the interaction energies of the complexes LiH···HX (with X F and Cl) through the ab initio computational calculations.
Modelos de QSAR-4D de alcaloides acridônicos frente à enzima catepsina V
Cancer is one of the diseases responsible for the death of a large numbers of people in the world annually. One of the possible causes of this disease is the deregulation of enzymatic catalytic activity. Cathepsin V is mainly expressed in the thymus, testis and epithelial cornea is one of the main therapeutic targets in the treatment of thymus cancer, since its high concentration is related to the progression of tumors in these tissues. A theoretical study of inhibition of this enzyme through QSAR was performed, obtaining satisfactory values of Q² = 0.666 ± 0.019, R² = 0.721 ± 0.012 and p²pred = 0.679 ± 0.026.
Solubilidade da timina em água do mar artificial e adsorção em olivina: um estudo de química prebiótica
The work was divided in two stages; the first was to evaluate the solubility capacity of thymine in ultrapure water and in artificial seawater as a function of temperature variation. The second stage consisted of thymine adsorption process in olivine. In seawater 4.0 Ga Na the solubility was lowest, and highest for 3.2 Ga in general averages. The great adsorption in 4.0 Ga Na seawater was observed.
Síntese e caracterização de TiO2, aplicação fotocatalítica e biomonitoramento de toxicidade de resíduos fotogerados
The diclofenac sodium toxicity monitor, for analyzing the photolized samples, was made by bioassays with Artemias Salinas. Monitoring of the photolized samples using EVONIK titanium dioxide showed the reduction of toxicity within 30 minutes.
Aplicação fotocatalítica de TiO2 sintetizado
This work evaluates the photocatalytic application of TiO2 synthesized in the degradation of diclofenac sodium. In order to analyze the efficiency of the titanium dioxide synthesized in the degradation of the drug, we used the HPLC-UV-Vis equipment and, finally, we compared the data using the standard TiO2 of EVONIK.
In the present work the synthesis of TiO2 was proposed, using the Pechini method with 4 different times. Its characterization was performed through absorption spectroscopy scans in the infrared region. Results obtained indicated, by means of characteristic bands, the presence of specific functional groups for TiO2.
Determinação de pesticidas em água de consumo na Região Oeste da Bahia
In this work samples were taken in the period between two seasonal periods, dry and rainy. Using preconcentration by domestic microwave and gas chromatographic method with coupled mass spectrometry developed by the Cangaço group, eight organochlorine and phosphorous species were identified, namely α-HCB (91.53 μg L-1 ), γ-HCB (83.46 μg L-1), Endosulfan I (18.90 μg L-1) and Endosulfan II (12.0 μg L-1), Methyl Paration (55.30 μg L-1), Chlorpyrifos (30.70 μg L-1) and Paration (17.5 μg L-1) in the 19 studied samples.
Síntese e caracterização de complexo derivado de 5-bromo-2-salicil-beta-alanina e acetato de cobre(II)
In this work, the synthesis of 5-bromo-2-salicyliden-β-alaninate (Schiff's Base) was carried out through the condensation reaction between 5-bromosalic aldehyde and β-alanine. Following, the product undergoes a complexation process with Cu(II) ion. Infrared spectra and changes in the crystalline structure of the solids and their colorations indicate the complex formation. Based on the results, a structure for the complex was proposed, which contains a Cu(II) ion in the center, coordinated with 5-bromo-2-salicyliden-β-alaninate and a β-alanine fragment (from cleavage of the C=N bond from a second Schiff base).
Utilização de um quimiossensor colorimétrico seletivo para determinação do teor de cobre em cachaça por espectrofotometria UV-Vis
Cachaça is the most consumed distilled beverage among Brazilians, being mainly produced in copper alembics. During the distillation step, copper undergoes a process of oxidation and ends up contaminating the beverage. Brazilian legislation permits up to 5 mg L-1 of copper in the cachaça, determined by atomic absorption spectrometry. However, in recent years, the use of colorimetric chemosensors for the determination of metal ions has been highlighted. Thus, in this work was demonstrated the applicability of a new Schiff base, 5-bromo-2-salicyliden-beta-alaninate, as a colorimetric chemosensor for spectrophotometric determination of copper(II) in a sample of artisanal cachaça, whose content was 0.53 mg L-1, which is in compliance with current legislation. The proposed method is selective, simple, fast and low cost, avoiding sample preparation and sophisticated equipment.
Desenvolvimento de métodos analíticos para determinação de metais e metaloides em cultivares de grãos de soja e milho produzidos no Oeste da Bahia, empregando ferramentas quimiométricas
Brazilian agriculture, stands out in the world scenario by the increasing production of one of the main world commodities, soybean and corn. Due to the population growth, the consumption of these cultivars as direct food, and indirect, are increasing and methodologies are used more and more. cultivation using chemical and phytosanitary aggravators by leaf area and soil, causing an increase in the concentration of elements that are not essential for the development of the plant, many of which may be detrimental to both its own and human health. With this, the chemical analysis, enters as a major protagonist determination of these concentrations employing, methodologies and procedures of chemometric analysis, in which these can be improved, increasing its efficiency.
Tentativas de síntese de uma base de Schiff derivada da condensação do 5-bromo-1-salicilaldeído com ditioxamida
In this work, attempts are made to synthesize and characterize a Schiff base derived from the condensation of dithioxamide with 5-bromo-1-salicylaldehyde. There were several reaction options in order to reach the product by varying the temperature parameters, and the reaction of fused reactants and use of water solvent of the base, which contradicts the data found in the literature.
Síntese e caracterização de catalisadores baseados em cinzas de caldeira modificadas com pentóxido de vanádio e/ou óxido de cobre(II)
This work aimed to perform the synthesis and characterization of catalysts based on boiler ash (AB) modified with vanadium pentoxide (V2O5) and / or copper (II) oxide (CuO). Were prepared catalysts containing 5 and 10% V2O5/AB; 0.5% CuO - 5% V2O5/AB and, 1.0% CuO - 10% V2O5/AB. XRD data indicated the formation of silica, calcium oxide and carbonate in AB, being also evidenced in the FTIR spectrum of AB samples pure and modified (V2O5/CC and CuO- V2O5/AB). These data pointed to the dispersion of superficial V2O5 species and / or strong interaction with AB.
Influência da seção de choque de fotoionização no sinal LOE do LiF
A study of the photoionization cross section (PCS) influence on the optically stimulated luminescence (OSL) intensity of LiF is being presented. The PCS of LiF was calculated from the analytical equation proposed by Lima et al [1], the magnitude is in order to 1023 m2. Experimental data of OSL intensity were also obtained, in partnership with the IPEN-USP; these data show how the intensity of the luminescent signal of the LiF decays with time. In addition, an optimization routine to solve the rate equations describing this electron-hole recombination process has been implemented in the Scilab.
Estudo das propriedades estruturais e eletrônicas de monocamadas e de nanotubos de carbono (C), nitreto de alumínio (AlN) e nitreto de boro (BN) via descrição ab initio
The present academic work addresses aspects of mechanics and electronics structure of III-nitrate monolayers. We did a systematic revision of this structures based in first principles calculations with Density Functional Theory (DFT). We also studied the Borophene, a monatomic material made of boron.
A construção da linguagem algébrica do 6º ao 9º ando do ensino fundamental
The objective of this research was to investigate students' level of understanding of algebraic language in grades 6 through 9 of Elementary School. The State of Art was constituted on the theme: algebraic thought in Elementary Education and Study of the Matrix of Reference for elaboration of the Brazil Proof, with identification of the descriptors. In the simulations proposed, the groups of the 8th year of the municipal school system were identified, two items referring to algebraic thinking. The general analysis of the results of the simulations indicated that in descriptor 30, of the 1416 students who performed the simulation, only 20% matched item 01 and in descriptor 33 only 25% matched item 02. The qualitative analysis of the records written in 203 notebooks demonstrated the inadequate construction of algebraic language by students. It is indicated the continuity of the research, together with the schools of the municipal school network.
Ensino da álgebra nas escolas públicas de Barreiras
During the analyses, the goal of this work is to understand better the real situation of learning and comprehension of algebraic elements that begin to be inserted in Elementary School, and how to implement improvements to increasing qualities of these strategies.
Realização de teste para determinação da capacidade de infiltração pelo método do infiltrômetro de anéis concêntricos em solos da Bacia do Rio de Ondas
Infiltration is the process where water penetrates the soil vertically from its surface. In order to determine the infiltration capacity of the soils of the Rio de Ondas basin by the concentric ring infiltrator method. In general, soils of the Rio de Ondas Basin presented high values of infiltration, and the predominant characteristic that influences these results is the sandy texture, which provides a greater volume of macropores and, consequently, a greater hydraulic conductivity.
Análise qualitativa das perdas de solo na bacia do Rio das Fêmeas, estado da Bahia
The present study presents a qualitative analysis of the soil loss in the Rio das Fêmeas Basin through USLE in GIS environment, which was classified as null and moderate for the current land use and occupation configuration. The region with the highest soil loss is the western region of the basin where the agricultural activity is concentrated.
Empilhamento litoestratigráfico e seção geológica da região de São Desidério – BA
The study area is located in São Desidério, western portion of Bahia state. Two geological units appear in this area: The Bambuí Group (São Francisco Basin) and the Urucuia Group (Sanfranscicana Basin). The Bambuí Group is composed by Serra da Mamona and São Desidério Formations. Motivated by the few studies of the western portion of the São Francisco Basin, this work aimed to perform a preliminary mapping of detail for the elaboration of a lithostratigraphic stacking and geological section for the São Desidério region. The study was divided in three stages of work, where bibliographical surveys, geoprocessing techniques, field structural data collection, and data processing were carried out. From the results obtained, it can be concluded that the drainage network of the São Desidério region is tectonically controlled, and possibly this region was affected by two tectonic events: one of ductile character, which generated the folds; and the other of a rhetorical character, which generated the system of failures.
Empilhamento litoestratigráfico e seção geológica da região de Boa Vista - BA
The study area is the Boa Vista sheet, located in south of São Desidério city (BA), and is geologically located in São Francisco Sedimentary Basin., The region rocks are important because it hold informations about geotectonics framework of the Neoproterozoic and Cretaceous period. Therefore, this work proposes analysis of structural data collected in the field and information obtained with geoprocessing techniques, with the objective of interpreting the structural control over the drainage and relief network, besides the elaboration of lithostratigraphic stacking of the rocks, a representative geological section and a pre-eliminate geological map. However, the method of the drainage lineages interpretation proved to be very efficient and have become valuable for the final geological map interpretation when combined with the geological section and lithostratigraphic stacking.
Empilhamento litoestratigráfico e seção geológica da região de Barreiras – BA
This project aims at the lithostratigraphic stacking of the Barreiras-BA region, where the Paleoproterozoic and Cretaceous lithologic units surface, as well as a detailed description of the rocks. In addition to the interpretation of depositional environments, faciological variations, evolutionary terms of the basin.
Práticas educomunicativas como processo de ampliação das condições de acessibilidade e cidadania
This article is a result of the Scientific Initiation Project of the Federal University of the West of Bahia (Ufob), whose title is: Communication for all: citizenship and accessibility by educommunication. The general objective is to demonstrate that educational practices can improve the process of teaching learning with a view to broadening the conditions of access and citizenship. The bibliographic research allowed the identification of educommunication practices carried out in several school contexts, while through action research it was possible to observe and analyze the teaching and learning process of students who have low vision or blindness in the municipal education network of the Municipality of Santa Maria da Vitoria-BA.
O fotográfico e as marcas contemporâneas
This research aims to improve a structure of analysis in order to understand how the brand relates to the public through advertising photography, to the comprehension of the image present in contemporary advertising, as a mechanism for the construction of discourse attributed to the brand.
Levantamento florístico do estrato herbáceo e macrófitas aquáticas dos Brejos da Barra, BA
Rural communities in Barra, BA, Brazil, have humid areas with hydromorphic soils and emerging Mauritia flexuosa L.f, locally known as Brejos. The phytophysiognomy seems as palm swamps (or veredas) composed by plant species of Caatinga and Cerrado biomes. We aim to make a floristic survey of the Brejos, detect differences of their compositions and try to identify bioindicator species. We sampled 39 Angiosperm families and 64 species. Fabaceae was the most frequent. We found species from both biomes in similar amounts. There seems to have a relation between the floristic composition and anthropization level of the Brejos. Also, Tonina fluviatilis Aubl., is pointed as a water quality bioindicator.
Análise do banco de sementes nos Brejos da Barra - BA
This is a study of soil seed bank from rural communities (known as Brejos) of the municipality of Barra-BA. We collected a numerical and descriptive data of seedling emergence of soil samples from Banguê, Cachoeira, Ilhota and Saco. We observed a great frequency of Poaceae, which presented the largest number of individuals, following Cyperaceae, Lamiaceae, Fabaceae, and a non-identified specie with similar morphotypes. The seed bank works as regeneration opportunity of the degraded areas nearby the watercourses and springs, thus helping to set conservation goals of the native riparian vegetation.
Levantamento florístico do estrato arbóreo-arbustivo dos Brejos da Barra - BA
The aim of the work was to make tree and shrub floristic survey of the riparian forest in the Brejos of Barra (palm swamps), Bahia, Brazil. The plants reproductive structures were collected along 2015-18 in rainy and dry seasons. We identified 49 Angiosperms families, 83 genus and 132 species. Fabaceae was more frequent with 22 species, followed by Melastomataceae (11 spp.). The predominant plant habit were shrubs with 61 species. Most of the species occurred in more than one site. Therefore, such data are important to understand that ecosystem and plan the next steps to conservation actions.
Investigação de espécie íctica com potencial para bioindicação da presença de agentes genotóxicos no riacho Vereda das Laje, bacia do Rio de Ondas, Oeste da Bahia
Biological monitoring of genotoxics in aquatic environments can be done by bioindication. Therefore, intended to identify an aquatic species with potential for bioindication of genotoxic agents in rivers West of Bahia. For that, fish collections were made (january-february/may-june) (Sisbio Auhorization). The Micronucleus Test – TMN was used in erythrocytes of the fish sampled. In the rainy season 6 species were sampled, but with few small specimens, which made it impossible to inference for the population. In the dry season (n=6 species, 3 different from rainy). From the 6 species of the dry season, it was possible to calculate the frequency of micronulei for 4: Astyanax sp (FO = 0,05 %), Characidium fasciatus (FO=0,02%), Hyphessobrycon sp. (FO=0,06%) and Leporinus taeniatus (FO=0,08%). Of the species analyzed in this phase of the study,none was considered a potential candidate for bioindication of genotoxic agents due to the low frequency of occurrence of micronuclei.
Exposição gestacional aguda ao etanol: efeito sobre as vias de formação da memória em camundongos adolescentes e na fase adulta
Acute alcohol consumption during gestation is capable of causing harm to the embryo. Anchored in this premise, the present study evaluated the effects of acute ethanol administration on the twelfth day of gestation, evaluating its interference in the formation of memory pathways in mice, when young and adults, through the Test of Object Recognition and Test of Step Down.
Caracterização dos tricomas e estruturas secretoras de Handroanthus serratifolius (Vahl) S. Grose (Bignoniaceae) ocorrente no Oeste Baiano
The present study objected characterize the secretory structures of Handroanthus serratifolius (Vahl) S. Grose because this structures are able to be used like a diagnostic characteristic for the genera. In H. serratifolius two kinds of trichomes were found: pateliform and peltate trichome. The sinapomorfic character of the specie is the glabre indument present on the leaf.
Galhas entomógenas associadas à flora de uma área do Cerrado na Serra da Bandeira, Barreiras, Oeste da Bahia
The present study aimed to characterize the galls, inducers and associated fauna in a Cerrado area (Serra da Bandeira, Barreiras, Bahia). Galls were collected monthly between August 2017 and July 2018. Forty-eight morphotypes were obtained from twelve botanical families. Leguminosae showed the greatest richness of galls and the super host species was Copaifera sabolicola with 10 morphotypes. The inducers belong to Diptera and Hymenoptera, being Cecidomyiidae (Diptera) the most frequent gallers.
Avaliação microbiológica das superfícies hospitalares do Hospital Municipal Eurico Dutra do município de Barreiras
The objective of this study was to investigate the environmental microbiota of the hospital surfaces of the Municipal Hospital Eurico Dutra in Barreiras (BA), identifying and knowing the antimicrobial susceptibility profile of the microorganisms present in these areas, and to analyze and propose the adequacy of the prevention measures and control of environmental contamination in the hospital units analyzed.
Caracterização da composição do exsudato de frutos de Cucurbita spp. (abóboras) e avaliação do seu potencial biotecnológico
This is an experimental study of pumpkin fruit exudation in which specimens of Cucurbita maxima x Cucurbita moschata hybrids, which were purchased locally, were randomly selected and cut with immersion of their exudates in 0.5% trifluoroacetic acid solution % (v / v) for further molecular characterization and prospection of compounds with antimicrobial activity. From the obtained data, one can apply such knowledge to obtain films of the exudate of cucurbita for diverse applications.
Levantamento sobre uso de plantas medicinais na região Oeste da Bahia
The use of medicinal plants for the treatment of diseases is almost as old as the human species itself. The application of the questionnaires showed that the elderly population has a great knowledge about medicinal plants, with the most used are capim santo, erva-cidreira, erva-doce and emburana.
Diversidade e taxonomia de Melastomataceae na Área de Preservação Ambiental (APA) do Rio de Janeiro, Barreiras, Bahia
Melastomataceae is the fifth largest family of angiosperms in Brazil. Based on bibliographical consultations, herbarium surveys and botanical collections, it was possible to perform the survey of the species with occurrence in the Ambiental Preservation Area (APA) of Rio de Janeiro. The identification key, illustrations, as well as the morphological description of each one are elaborated. We have thirteen genera in the study area and 22 species, and one of them are considered as new occurrence for the Bahia state.
Vigilância epidemiológica das principais espécies de triatomíneos encontrados no Oeste da Bahia
The objective of this work was to map the main triatomine species found in the West of Bahia and to analyze the infection rate of the same. The 51 triatomines analyzed were of the sordid T. species and all were negative for the presence of T. cruzi.
Investigação da toxicidade aguda e da atividade analgésica e anti-inflamatória de Copaifera sabulicola J.A.S. Costa & L.P. Queiroz em camundongos
Copaifera sabulicola is a new species described in the cerrado of the center-west of Bahia. This study investigated the toxicological characteristics and pharmacological potential of C. sabulicola. The acute toxicity of C. sabulicola was evaluated by the OECD class method (423), where it was verified that this plant species is not toxic. Then, using the methods of abdominal writhing induced by acetic acid and nociceptive stimulus induced by formalin, it was verified that C. sabulicola presents analgesic activity. Right after, anti-inflammatory activity was found for C. sabulicola when the extract was tested in the carrageenan-induced paw edema model.
Avaliação da atividade mnemônica de Amburana cearensis (Allemão) A. C. Sm
The anticholinesterases are the principal drugs used to treat memory impairment in neurodegenerative disorders. Amburana cearensis (Allema) A. C. Sm. (Fabaceae) is popularly used in the treatment of various diseases. The hydroalcoholic extract of A. cearensis stem bark (EHA) has anticholinesterase activity in vitro. This work investigated the mnemonic activity of EHA in the step-down inhibitory avoidance test with mice submitted to acute oral treatment (100, 300 or 1000 mg/kg), without and with scopolamine-induced amnesia. As well as, the EHA effects on anxiety and locomotor behaviors.
Isolamento e preservação de linhagens de leveduras associadas ao Cerrado e a produção de cachaça e cerveja artesanal do Oeste Baiano
Yeasts are fungi of great biotechnological interest, being Saccharomyces cerevisiae the main species responsible for the alcoholic fermentation in industrial processes. In Brazil this species of yeast is used in ethanol and cachaça production due to its good fermentative efficiency and high resistance to ethanol. Considering the importance of these microorganisms, it is valid the isolation of wild yeasts from the environment seeking to verify their fermentative potential. This work aimed to isolate and cryopreserve yeasts from fermentative and natural environments. A total of 104 isolates were obtained, 80 from fermenting must and 24 from environmental samples, preserved in duplicate, contributing to the establishment of a collection of crops with great biotechnological potential.
Bioprospecção de inibidores antipatogênicos de plantas do cerrado contra Staphylococcus aureus visando a aplicação biotecnológica
The use of antipathogenic compounds has emerged as a new strategy for the control of bacterial infections. Several biological sources are used in the search for antipathogenic compounds. Brazilian cerrado presents a great biodiversity for the prospection of new compounds with biotechnological application. In this project 10 extracts of cerrado plants were tested in order to identify compounds with antipathogenic activity against Staphylococcus aureus. The results showed that the extract of Plantago major L. and Copaifera sabunicola showed promising biological activities against S. aureus.
Associação entre vitamina D e ganho excessivo de peso durante a gestação
Based on the current evidence, it is observed in the last decade, increased volume of studies on the association between obesity and vitamin D deficiency, adverse events to women's health. There is still controversial evidence and little is known about the safe dose for the gestation period. In view of the above, the present study aims to evaluate the influence of maternal body mass index on the serum concentration of vitamin D in pregnant women. A systematic review was carried out with meta-analysis, subsidized by PRISMA norms. To do so, we searched the PubMed / Medline, Web of Science, Scopus, Science Direct, Ovid and Lilacs databases published between December 30, 1990 and June 30, 2018. The descriptors used were: "vitamin D", " "Body mass index", "obesity" and "pregnancy". The eligible articles were read in full, and subsequently collected variable information investigated in a form designed for the collection of the information. According to the eligibility criteria, 2951 studies were identified and 9 were selected to make a systematic review with meta-analysis and a meta-analysis was performed. Pregnant women with obesity and overweight presented a greater chance of vitamin D deficiency and insufficiency, when compared with pregnant women of normal weight. Thus, weight gain during pregnancy needs to be monitored in order to prevent vitamin D deficiency and complications to maternal and neonatal health.
Fatores socioeconômicos e prevalência de sintomas depressivos em gestantes do município de Barreiras, Bahia
We intended to evaluate the prevalence of depression during pregnancy and socioeconomic factors of women attended in Barreiras-BA. We have used structured anamnesis, Edinburgh Scale (EPDS), gestational age calculation by the first trimester ultrasonography or the day of a woman's last menstrual period and socioeconomic evaluation. Sixty-seven participants have been interviewed, in which seven were excluded, totalazing 60 pregnant women. Which 43% had depressive symptoms. The results evidenced the necessity of assistance adequacy through structuring and strengthening the psychosocial care network.
Realidade obstétrica e desafios para implantação da política do parto humanizado em maternidade municipal de Barreiras, Bahia
We intend to evaluate the experience of the childbirth of pregnant women in Barreiras, BA. We used a Questionnaire of Experience and Satisfaction of Childbirth, structured anamnesis and socioeconomic evaluation by the Questionnaire of the Social Work Department of the University of São Paulo at the Basic Health Units and Maternity Hospital. A total of 104 questionnaires were collected, of which 55 were included. Based on our findings, we can highlight the need for health education during prenatal care for men and women, as well as the improvement in the supply and execution of relaxation during the labor period.
Avaliação da aiapina e seus derivados substituídos como potenciais inibidores da enzima GST-π e determinação de seus perfis farmacocinéticos via estudos in silico
The inhibitory activity of six coumarins against glutathione-S-transferase was investigated using molecular docking. The results indicated a great potential of these compounds to inhibit this enzyme considering interaction pattern and binding energies. Suitable pharmacokinetics properties and high drug-likeness score were in silico predicted for coumarins, although mutagenic potential was also predicted. Promising results reinforce that studies should be continued.
Avaliação da cumarina e seus derivados substituídos como potenciais inibidores da enzima GST-π e determinação de seus perfis farmacocinéticos via estudos in silico
The inhibitory activity of coumarin and derivatives against glutathione-S-transferase was evaluated using molecular docking. Docking results indicated a great potential of these compounds to inhibit this enzyme, especially compound 2. The ADMET profile were also in silico predicted for coumarins. In general, they show positive results, however mutagenic and carcinogenic potential was observed.
Avaliação da umbeliferona e seus derivados substituídos como potenciais inibidores da enzima GST-π e determinação de seus perfies farmacocinéticos via estudos in silico
The inhibitory activity of coumarins against glutathione-S-transferase was assessed by molecular docking. Docking results suggest a greater inhibitory potential of compounds 3 and 6. In general, pharmacokinetic requirements were met for coumarins. However, toxicity must be improved.
Estudo comparativo da interação de novos derivados sintéticos de tiossemicarbazonas com a glutationa-s-transferase
Thiosemicarbazones are bioactive molecules that have a strong antitumor action by means of their chelating properties, thereby being able to promote the inhibition of enzymes that induce resistance to the treatment of gliomas such as Glutathione S-transferase-π (GST-π). This study consisted in verifying this activity by spectrophotometer, and toxicity tests in Artemia Salina.
Atividade de pirimidinonas e derivados na inibição da enzima glutationa S-transferase-π
Desenvolvimento de nanoemulsão a partir do óleo de Caryocar brasiliense Camb. e do extrato de aquoso de Magonia pubescens A.St.-Hil.
The nanoemulsions composed of the pequi fixed oil (Caryocar brasiliense Camb.), With the tensioactive system formed by the vegetal extract, such as that of the seed of Magonia pubescens A.St.Hil rich in saponins presented viable with potential use in the transport of substances active in pharmaceuticals and cosmetics.
Estado nutricional de idosos do município de Barreiras, Bahia: uso da mini avaliação nutricional
The objective of this study was to evaluate the nutritional status of Barreiras elderly. Social and demographic aspects, morbidity and lifestyle profile were evaluated and the Mini Nutritional Assessment was applied. A total of 273 elderly people were enrolled in 20 Family Health Units and 30.8% were malnourished or at risk of malnutrition (MAN), with a mean score of 24.5 (+3.3) among the elderly. The association of nutritional status with sociodemographic and lifestyle aspects points to the need for a multidimensional approach in the attention to the elderly.
Indicadores de massa muscular em idosos do município de Barreiras, Bahia.
Population aging is considered as a worldwide phenomenon and is accompanied by the gradual loss of muscle mass (MM). In this sense, considering the scarcity of information on muscle mass reserve in the city of Barreiras, Bahia, the objective of this study is to know the prevalence of muscle mass deficit among the elderly in this location.
Investigação da relação entre insegurança alimentar e hipertensão arterial sistêmica em idosos residentes no município de Barreiras/Ba
Food insecurity has repercussions on the morbidity and mortality profile of the population. The increase in the incidence of chronic diseases may be associated with Food Insecurity due to inadequate food choices. With aging, these pathologies appear, especially Systemic Arterial Hypertension, being the most prevalent in the elderly population. Objective: To know the association between food insecurity and arterial hypertension in the elderly in the municipality of Barreiras-BA. Methodology: It was a cross-sectional study with primary data collection, where a general questionnaire and the Brazilian Food Insecurity Scale were applied. Results: Prevalence of Food Insecurity was 60.9% and Arterial Hypertension was 68.7%, but without a statistically significant relationship (p-value = 0.139). Conclusion: It is observed that the elderly population when it
Repercussões da insegurança alimentar sobre a desnutrição em idosos residentes no município de Barreiras, BA
It is a cross-sectional study, with primary data collection and performed with the elderly. The data showed high prevalence of both food insecurity and malnutrition or risk for malnutrition, and the correlation between these variables was statistically significant.
Agressão física contra a mulher na região oeste da Bahia: registros de casos periciados no necrotério da 11ª Coordenação Regional de Polícia Técnica (11ª CRPT) de Barreiras (Bahia, Brasil) entre 2012 e 2016
The aim of this study was to know the characteristics of the aggressions suffered by women victims of violence in Barreiras (Bahia) between the years 2012 and 2016, generating statistical data that can be used in public policies aimed at preventing and reducing violence against women. A total of 2,188 cases of violence were reported from January 2012 to December 2016. The socio-demographic profile indicates that the woman who is a victim of violence is 30 years-old, single, "parda", housewife, lives in Barreiras and has only completed elementary education. While the aggressor is male and someone known to his victim, acts using any instruments, usually on Sundays and at night, reaching the woman especially in the upper limbs and face. There is a need for more effective public policies and actions, especially focused in the woman with the characteristics specified in this profile, with the objective of clarifying, welcoming and empowering them.
Entre o slow e o fast food: estudo sobre as resistências e ressignificações das práticas alimentares no Oeste da Bahia
This study aimed to construct the mapping of the main commensality spaces that characterize the conflicts of tradition and modernity in the municipality of Barreiras. It was done through the delimitation of the commensal spaces of the city, from which a key informant was chosen to be interviewed and then the spaces were mapped through the observation of the identities peculiarities of fast and Slow food. The conflicts of tradition and modernity present in the Barreiras food scene are mainly due to the migratory flows that have intensified since the transformation of the city into an attractive pole.
Avaliação de sintomas depressivos e de declínio cognitivo em idosos de Barreiras, Bahia
This study aimed to evaluate the presence of depression in non-institutionalized elderly people, living in the municipality of Barreiras, Bahia. There was a high prevalence of depression (30.8%) and cognitive decline (18.3%).
Avaliação da qualidade de vida em idosos de Barreiras, BA
The objective of this study was to evaluate the quality of life of the elderly in the city of Barreiras, Brazil, using a sociodemographic and other assessment of quality of life evaluation (WHOQOL-bref). 119 elderly people were interviewed, and the overall result of the quality of life analysis was regular.
Distribuição temporal e espacial das diferentes formas de neoplasias no Oeste Baiano
Neoplasias are one of the leading causes of death in the world. The investigation of the historical trend of health-related events, among them cancer mortality, allows a more adequate evaluation of the health control measures.
Análise química de extratos vegetais obtidos da flora de transição Cerrado-Caatinga
The Aedes aegypti is the main arbovirus vector. Synthetic chemicals compounds used continuously and incorrectly, generate man intoxication and resistance in insect. Products based on the secondary metabolites of plants with insecticidal and/or repellent activity are alternatives. City Barra-Ba, located in the Cerrado/Caatinga area, has a biome not yet studied. Six plant species were selected, extracts and essential oils were obtained in order to produce insecticides and repellents.
Avaliação do efeito repelente de extratos obtidos da vegetação de transição Cerrado-Caatinga contra Aedes aegypti
This work aimed to evaluate the repellency potential of plant species obtained from cerrado-caatinga, against Ae. aegypti cultivated in the laboratory. The repellent substances tested were the São Caetano Melão (Momordica charantia) and the Alho Bravo. We obtained in the results of repellency test with the Melon of São Caetano and Alho Bravo 29.6% and 32%, respectively. Considering these results, no repellency was observed for the extracts. However, further studies are needed to obtain new extracts as well as to analyze the repellent potential and the identification of the compound responsible.
Avaliação larvicida dos extratos obtidos da vegetação de transição Cerrado-Caatinga contra Aedes aegypti
This work evaluated the larvicidal activity of the extracts of plants obtained from the Cerrado-Caatinga transition vegetation against Ae. aegypti. The results obtained show that of the extracts used, P. cincinnata presented the best results, obtaining a mortality rate above 50%. The extracts used in larvicidal bioassays demonstrated that they can be used to control Ae. aegypti.
Marcadores antropométricos e fatores de risco para doenças cardiovasculares em idosos de Barreiras, Bahia
The objective of this study is to identify the prevalence of cardiovascular risk indicators in the elderly. Biopsychosocial and demographic aspects, morbidity profile, WC and BMI were studied. The most significant cardiovascular risk indicators were high blood pressure, presence of arterial hypertension, sedentary lifestyle and smoking.
Montagem experimental com as Turbinas Pelton e Darrieus para geração de energia elétrica utilizando as redes de água, esgotos prediais ou urbanos e/ou a vazão de rios
A Darrieus vertical-axis turbine has been developed experimentally to be adapted in building or residential pipes. A variety of airfoil profiles were used for the construction of the device and the one that had the most constant aerodynamic efficiency with the variation of the angle of attack was selected. Subsequently, the turbine was designed in the Inventor Software and the same was printed on PLA on the 3-D printer. Finally, the environment of use of the device was simulated where a rotation of 925, 6 rpm was achieved for a 30 cm column of water.
Análise computacional para a geração de energia elétrica, utilizando as redes de água e esgoto prediais ou urbanos
A Darrieus turbine was simulated in the Ansys Workbench software, evaluating the pressure before and after the flow, considering the static turbine (i.e., as if it were impeding the flow of fluid), we obtain the torque exerted on the blades and the velocity profile through the 500 mm of flow. With these considerations, we evaluated the turbulence after passing through the turbine. Due to the consideration of the static rotor, we then observe each parameter varying from 0º to 120º (varying each 10º) the clockwise rotation of the turbine. It has been noted that from 120° the principle repeats, since the turbine has 3 identical blades.
Avaliação da qualidade da água utilizada nos perímetros irrigados do projeto Formoso em Bom Jesus da Lapa
In this paper are presented results the monitoring of irrigation water quality in banana crop area at Formoso project in the Bom Jesus da Lapa city, Brazil. The parameters of water quality considered in this work were ammoniacal nitrogen (N-NH4+), nitrite (N-NO2-), nitrate (N-NO3-), total phosphorus, dissolved oxygen (OD), pH and total dissolved solids (STD). These are parameters selected from CONAMA resolution 357/2005 of the National Environmental Council.
Disponibilidade de habitat para a ictiofauna do Rio de Ondas, Bahia
The objective of the work was to carry out the ecohydrological modeling of habitat availability for the ichthyofauna of the Ondas river, Bahia. The species Hoplerythrinus unitaeniatus and Leporinus piau showed adaptations in areas with low flow rates, while Hoplias malabaricus showed usable area in larger flows. The data can broaden the discussions about the use of ecological flows and the proposal of public policies for the management of water resources.
Conservação pós-colheita de frutos nativos do Cerrado
The objective of this work was to evaluate the effect of different packages on the conservation and postharvest quality of Anacardium humile pseudofructs. It was possible to observe that of the treatments used, the one that promoted greater durability of the pseudofructs, maintaining the desirable characteristics was the bag of low density polyethylene.
Estudo fitoquímico dos extratos etanólico de partes da planta da espécie Copaifera depilis Dwyer
The objective of this study was to carry out a preliminary study of the main classes of secondary compounds and to evaluate the antioxidant potential of the extracts of the species Copaífera depilis. The results expressed high antioxidant potential of the methanol and hexanic fractions, besides the presence of tannins, phenols, steroids and saponins.
Estudo fitoquímico dos óleos fixo e essencial da espécie C. depilis Dwyer
The species Copaifera is widely used by communal medicine, for this reason the present study was carried out a phytochemical study of the essential oils of the fruits and of the fixed oil of C. depilis, in order to obtain the fingerprint of the same in two different schedules. With the GC-MS, tetracontane and 1H-Cycloprop [e] azulene-7-ol, decahydro-1,1,7-trimethyl-4-methylene- [1α- (1α, 4a, 7b, 7a.beta., 7b.alpha.)] In the fixed oil was ascorbic acid L - (+) - 2,6-dihexadecanoate. The use of UV-vis spectroscopy indicated higher antioxidant potential and total phenolic content in fixed oil followed by essential oil (16h).
Inserção internacional da região Oeste da Bahia nas cadeias de valor global: o caso da soja e do algodão
This research seeks to analyze the insertion in the CGV (Global Value Chain) of the local soybean and cotton sector of an important grain producing region in Brazil, the West of Bahia. From this perspective, the overall objective of this project is to show a panorama of the insertion of soybean and cotton production in the region within the Global Value Chain of these products. We have with this research two papers presented at an international congress and an article published in a journal. In addition, an agreement was reached with the Bahian Association of Cotton Producers - ABAPA.
Educação ciência-tecnologia-sociedade: problematizações, implicações e sinalizações para o ensino de Ciências
The present academic work addresses aspects of STS education and from its understanding presents signs for the teaching of sciences in particular the teaching of physics. The project was based on the analysis of didactic books that had as criterion to analyze a targeting matrix developed by Strieder e Kawamura (2017). Thus, with the purpose of developing didactic materials using the most critical criteria presented in the matrix.
O discurso do otimismo no audiovisual contemporâneo ou diga-me que causas defendes e te direi que otimista és
This summary presents analyzes of optimism discourses on audiovisual materials available on YouTube. The project focused on discourse and optimism, based on the multidisciplinary construct between Social Communication, Discourse Analysis and Cyberculture.
O discurso do otimismo no audiovisual contemporâneo ou quem pediu sua opinião?
This summary presents materializations of the subject that composes the optimism discourse on YouTube with a cut over the youtuber Rayza Nicácio. It presents identification of different positions of the optimistic subject in operation, evidencing different processes of publicizing the self. The research is enriched in the field of multidisciplinary studies in Advertising and Propaganda, Culture and Philosophy.
Editorial IV-SIC para o volume 3 da Pesquisare
O IV Seminário de Iniciação Científica (SIC), realizado no Campus Multidisciplinar de Bom Jesus da Lapa, da Universidade Federal do Oeste da Bahia (UFOB), teve como objetivo divulgar os resultados dos trabalhos de Iniciação Científica e Tecnológica, 2017/ 2018, realizados pelos Estudantes da UFOB, sob orientação de professores das diversas áreas de conhecimento, lotados nas unidades da UFOB. Participaram do evento estudantes, técnicos e professores da UFOB e de membros dos Comitês Institucional e Externo do PIBIC-UFOB. A Programação do SIC foi composta de palestras, apresentação cultural, exposição científica do Caminhão da Ciência e apresentação de trabalhos de Iniciação Científica e Tecnológica, na forma de pôsteres ou oral, distribuídos nas áreas das Ciências Agrárias, Biológicas, da Saúde, Exatas e da Terra, Humanas, Sociais Aplicadas, Engenharias, Linguística, Letras e Artes e Multidisciplinar, abordando temas variados, sendo contabilizados 106 resumos.
A percepção geográfica do turismo em Barreiras – BA
This work aims to analyze the development of tourism in the city of Barreiras - BA, as well as the geographic perception of the tourist landscape and its socio - spatial relationship.
Diagnóstico da educação em Barra e elaboração de material didático para a educação do campo
The present project aims to contribute to the planned development of education in the countryside in the city of Barra- Ba, based on the relationship between academia and society, fulfilling the dimensions of teaching research and extension, which when well articulated leads to significant gains for teaching relationship learning, collaborating with the formation of agrarian sciences and disseminating knowledge.
Caracterização arqueológica e análise preliminar do Sítio Gruta das Pedras Brilhantes (São Desidério, Bahia)
The project presents the partial aspects related to the Work Plan Archaeological characterization and preliminary analysis of the Gruta da Pedras Brilhantes (São Desidério, Bahia) site. Inserted in the project "Building a Geoarqueologia for the sub-basin of Rio Grande, Bahia". The objective of the project is to carry out a systematic registration of the site in order to guarantee preliminary analyzes and survey of the hypotheses to be verified in a future stage of excavation of the shelter region.
Caracterização arqueológica e análise preliminar do Sítio Serra do Mimo (Barreiras, Bahia)
The archaeological characterization and preliminary analysis of the Serra do Mimo site, in Barreiras-BA, provided a better description of its geo-environmental aspects and its material culture (rock art and lithic materials). The panels and rock art of the site were documented through photogrammetry, digital enhancement of the photos and decal. The activities carried out on the site were relevant for the registration, dissemination and conservation of the archaeological heritage.
Um estudo sobre o ensino e a aprendizagem das definições de limites e continuidade: Análise do Livro “Cálculo com Geometria Analítica” de Louis Leithold
The present work had as objective to analyze how the definition of limit is presented in books of differential calculus, in its socio-historical and formal aspects. We present here the analysis of the book "Calculus with Analytical Geometry " by Louis Leithold.
Diagnóstico das políticas públicas de abordagem territorial no Oeste da Bahia nas duas últimas décadas
The geographic space is produced socially. In the same way, the territory results from the actions of the social agents. Social inequalities are often the result of the actions of the State, since it acts in articulation with capital. Based on the assumption that social participation in the public policy process is the basis for effective social management and territorial development, the objective of this work is to diagnose the public policies of a territorial approach in the West of Bahia in the last two decades.
Análise de abrangência nos processos de tomada de decisões sobre o território da Bacia do Rio Grande
In order to contribute to the understanding of the territorial processes that aim at its development, the present work aims at analyzing to what extent the governance models used by the State make possible the effective social management of the territory and, consequently, territorial development in the Bacia do Rio Grande- BA. Specifically, it aims to identify the strategies of territorial agents / actors in the Territory; analyze the decision-making processes and provide subsidies for the research entitled "Public (territorial) Policies and Social Participation in the Território in the Bacia do Rio Grande: What Development?".
A crítica ecofeminista ao paradigma desenvolvimentista e à exploração das mulheres
Based on the theoretical paradigm of ecofeminism, this paper addresses the women social movement called Marcha das Margaridas. Ecofeminists writers, such as Vandana Shiva and Maria Mies, start from a critical perspective of the Western development model, which is dependent on the exploitation and domination of nature. This model reflects the patriarchal paradigm that structures social and political organization in order to subordinate women. Considering the interrelation between nature and women domination, it is possible to remark, on the one hand, that children and women themselves have been more negatively impacted than men by the ecological disasters and by environmental degradation. On the other hand, women were the first one to protest against environmental destruction and to organize themselves to promote alternative development modes based on solidarity and cooperation. The main aim of this work is to analyze the social movement of women Marcha das Margaridas, its foundations and purposes in terms of social development and promotion of autonomy for peasant women, in light of the theoretical assumptions of the ecofeminist paradigm. The methodology adopted in the present work involves the exploratory approach, with the aid of theoretical bibliographical and documentary research.
Síntese e caracterização de zeólita Fau com adição de base de Schiff
This work aims to synthesize and characterize a faujasite zeolite under moderate temperature conditions with Schiff base presence. The zeolite was synthesized in the ratio 1.7: 13: 7.3 using NaAlO2, KOH and Na2 SiO3, respectively. The characterization showed the atomic planes of a FAU zeolite by the X - ray and the functional groups by FT-IR technique.
Caracterização de Zeólita sintetizada utilizando Base de Schiff
This work aims to synthesize and characterize a faujasite zeolite under moderate temperature conditions with Schiff base presence. The zeolite was synthesized in the ratio 1.7: 13: 7.3 using NaAlO2, KOH and Na2 SiO3, respectively. The characterization showed higher porous volume in FAU + base 2 such as surface area and pore size.
Modelagem de células fotovoltaicas com ferramentas computacionais - influência da temperatura na densidade de corrente e da mobilidade dos portadores de carga
The west region of Bahia is located in the largest solar irradiation range with 2190kW h/m2 year. Due to the rich potential of solar energy in the region it is necessary to focus the studies on input parameters with the main factors that influence the electrical characteristics of a photovoltaic cell: the luminous intensity and temperature of the cells.
Avaliação numérica do escoamento de ar sobre perfil de pás eólicas
The search for renewable sources of energy is on the rise and the study of this area has become necessary. Wind energy is a renewable source of energy derived from the kinetic energy of the winds and later transformed into electrical energy. The objective of this research is to perform computational analysis of wind turbine blades, investigating the behavior of speed and pressure around the device (profile or airfoil). ANSYS Student software version 18.2 was used for a complete analysis.
Análise e comparação de métodos de localização de faltas em linhas de transmissão
Fault location is one of the most critical issues of utilities and electrical companies in today’s competitive market. Analysis of fault location not only ensures the continuous power supply but also help to study properties and weakness of particular power network. In this paper analyzes and compares the various types of long-transmission line fault localization algorithms in the literature, making a time analysis and the accuracy of fault location between them using the ATPDraw (Alternative Transients Program) and MATLAB.
Algoritmos computacionais para simulação de transferência de calor aplicados em problemas na engenharia
In this work is shown a numerical-computational analysis for heat transfer problem in permanent regime. In the numerical solution, the Finite Volume Method - (FVM) was used and in the computational algorithm built, it was incorporated into the Portable library, Extensible Toolkit for Scientific Computation (PETSc).
Modelagem mesoscópica da molécula de DNA
The dynamics of DNA have been studied with the use of mechanical models that simulate the molecule at the mesoscopic scale. One of these processes studied is the thermal denaturation of the DNA. This work will show a generalization of a mechanical model to investigate the effects of nonlocality in the denaturation process.
Atributos físicos dos solos cultivados na região Oeste da Bahia
The physical attributes of the soils cultivated in the western region of Bahia were determined in order to analyze if the recharge process of the Urucuia Aquifer System could be compromised by soil compaction in the recharge areas, due to the management adopted by the farmers. In general, the longer the time without soil mobilization, the higher the soil density values become and the smaller the soil density values become, indicating that the non-mobilization of the soil favors its compaction, making it necessary to use conservation practices to reduce this effect.
Infiltração da água no solo e resistência à penetração em diferentes sistemas de cultivo na região Oeste da Bahia
It was tested the hypothesis that the no-tillage system favors the infiltration capacity of the predominant soils in the agricultural areas in the West region of the State of Bahia. In the development of this work it was observed that each study area presents a technique of planting that diversifies. The results showed that the stable infiltration rates of the studied soils are able to maintain high levels and favorable to the recharge of the Urucuia Aquifer System. However,this rates are affected by the use of the soil, decreasing with the replacement of the cerrado by crops.
Fertilidade de fêmeas Nelore tratadas com distintos estimulantes do crescimento folicular em um protocolo para inseminação artificial em tempo fixo
The objective of this research was to compare the fertility of lactating Nelore females treated with follicle stimulating hormone (FSH) or equine chorionic gonadotrophin (eCG) as a follicular growth stimulant in a protocol for IATF.
Diâmetro do folículo ovulatório de fêmeas Nelore tratadas com distintos estimulantes do crescimento folicular em um protocolo para inseminação artificial em tempo fixo
The objective was to obtain the ovulatory follicle (DFOL), treated with follicle stimulating hormone (FSH) or equine chorionic gonadotrophin (eCG) as follicular growth stimulants in a Protocol for Artificial Fixed Time Insemination (FTAI).
Intensidade de expressão do estro de fêmeas Nelore tratadas com distintos estimulantes do crescimento folicular em um protocolo para inseminação artificial tempo
The objective was to evaluate the expression of estrus, of Nelore lactating females treated with follicle stimulating hormone (FSH) or equine chorionic gonadotrophin (eCG) as follicular growth stimulants in a Protocol for Artificial Fixed Time Insemination (FTAI).
Adoção de biofilmes enriquecidos com óleo de capim santo (Cymbopogon citratus) sobre a vida pós-colheita de pimentão
The corn starch film proved to be efficient in delaying the yellowing and shriveling of the peppers. Maize starch + essential oil has been shown to be effective in reducing the number of lesions and in citric acid contents in fruits. Cassava starch with essential oil of holy grass, conditioned less mass loss to chilies kept at 10 °C.
Uso de biofilmes e óleo essencial de capim santo (Cymbopogon citratus) sobre a vida pós-colheita de cenoura
The treatments did not interfere significantly on all variables analyzed. Roots coated with 5% manioc starch + 1.0% essential oil and 0.5% essential oil aqueous solution conditioned at 10 °C showed lower mass loss, being an alternative to be adopted for the purpose of prolonging the useful life of carrots and reducing the loss of mass.
Potencial de folhas de capim santo (Cymbopogon citratus) para melhorar o tempo de armazenamento de raízes de cenouras
The lowest weight loss was observed when the carrots were stored at 30ºC with leaves of holy grass, as well as, at 3 days there was greater weight loss, then there was a reduction with the passage of time. At 25 and 30 °C with leaves a higher concentration of citric acid was observed, and with the passage of the storage period a significant reduction. The results of this study indicate the high potential of holy grass, which can be considered as an alternative strategy to improve carrot storage life, considering its simplicity and effectiveness in reducing storage costs, reducing weight loss without causing any toxicity to the environment.
Identificação dos biótipos de mosca-branca (Bemisia tabaci) prevalentes no Oeste da Bahia
Identification of whitefly species in the west of Bahia, aiming at the relation between the species identified with the main cultures of the place. In this study, 930 individuals were collected. Positive results were obtained for Bemisia tabaci MEAM1, the most recurrent species in commercial crops in the country.
Avaliação nutricional de silagens de resíduos de tomate desidratados e aditivadas com casca de mandioca
The objective of this study was to evaluate the mixed silages of cassava peel and tomato wastes submitted to different dehydration times (0, 4, 24, 60 and 96 h). There was a linear reduction (P<0.05) in the density, effluent and gases losses in the silages. Dehydration of the tomato wastes during 60 and 96 h promoted higher (P<0.05) crude protein contents. It is recommended to ensilage the cassava peel with dehydrated tomato residue for up to 8 hours.
Avaliação nutricional de silagens de flor-de-seda (Calotropis procera) aditivada com resíduos de manga e tomate
The objective of this study was to evaluate the silk flower silages with the inclusion of mango and tomato wastes (0, 10, 15 e 20% of fresh matter). Maximum effluent production (P<0.05) was observed with the inclusion of 12.3% of mango and tomato wastes. DM, OM and NFC contents of the silages with 10, 15 and 20% inclusion were higher (P<0.05) than the control silage. It is recommended to include 13% of mango and tomato wastes in silk flower silage.
Avaliação nutricional de silagens de resíduos de manga desidratados e aditivadas com casca de mandioca
The objective of this study was to evaluate the effect of the inclusion of different levels of mango residue in nature (0, 10, 20 and 30% fresh matter) in the mixed silages of elephant grass and cassava peel. Maximum effluent loss (P <0.05) was observed with the inclusion of 24.3% of mango residue. In the silages with 20 and 30% of mango residue, higher protein contents were observed. The addition of 10.0% of mango residue in nature in elephant grass silage and cassava peel, promotes better forage conservation.
Bioatividade de inseticidas botânicos sobre o pulgão-preto do feijoeiro (Aphis craccivora Koch)
The purpose of this study was to evaluate the insecticidal activity of hydroalcoholic extracts obtained from plant species endemic to the western Bahia region against the Aphis craccivora Koch. Cowpea plants were infested with adult A. craccivora females, twelve days after seeding. Extracts of Xylopia sericea (fruit), Croton conduplicatus (fruit) and Jatropha mutabilis (leaves), at a concentration were used. The efficiency of treatments in the mortality of A. craccivora insects was evaluated in the intervals of 24, 48, 72, 96 and 120 hours, counting the number of live and dead insects. The results indicate that the extracts have a toxic effect on A. craccivora, and the species J. mutabilis showed a greater efficiency in the control of the insect-pest (88.71%), when compared to the species C. conduplicatus (42.63%) and X. sericea (38.56%).
Análise da rotulagem de papinhas infantis conforme legislação vigente
The consumer's right to information is becoming more and more important, so in the elaboration of a food label, there must always be a concern with the consumer and the information must be within the reach of his / her comprehension. Therefore, evaluate the conforming and non-conforming items in the label of food products produced and marketed in the city of Barreiras-BA and other localities in the region. We analyzed 31 product labels found in supermarkets and markets in the city of Barreiras. The candy and honey category presented a higher proportion of non-conforming items (51%). The second category that presented the highest number of nonconforming items was the category of breads, biscuits and the like.
Efeito de nisina sobre a viabilidade de Salmonella Typhimurium cultivada em meio ácido sob temperatura de refrigeração
In this study we evaluated the viability of Salmonella Typhimurium treated with different concentrations of nisin at acidic pH under refrigeration temperature. The greatest reduction in the viability of the pathogen was verified using the highest concentrations of bacteriocin. In view of this, we demonstrated that the low pH conditions under refrigeration temperature can act as sensitizing agents of Salmonella Typhimurium to the action of nisin.
Avaliação da conformidade dos itens na rotulagem nutricional de alimentos produzidos por indústrias de pequeno porte e comercializados no município de Barreiras – BA
Thirty-one product labels of the following food categories available in the market of Barreiras (BA) were analyzed: frozen foods, coffee, cereals and grains, sweets and honey, dairy products, and bakery products. These products had a high index of non-conforming labels (56%), suggesting that such scenario contributes to the decrease in the quality of the food consumption and, as a consequence, it puts in risk the well-being of the consumer.