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Anais da Academia Brasileira de Ciências, Volume: 96, Número: 4, Publicado: 2024
  • Recovery of chemical components from Spondias mombin L. leaves using pressurized hot water, ultrasound and turbo-extraction techniques Chemical Sciences

    PEREIRA, VICTOR DE S.; FERRO, DIEGO MÁRLON; MACHADO, JANAÍNA CARLA B.; FERREIRA, MAGDA RHAYANNY A.; SOARES, LUIZ ALBERTO L.; STRAGEVITCH, LUIZ; DANIELSKI, LEANDRO

    Resumo em Inglês:

    Abstract The fruit of Spondias mombin (cajazeira) is widely consumed in the northeast region of Brazil. In this work, three different extraction methods, namely ultrasound-assisted extraction (UAE), turbo-extraction (TE) and pressurized hot water extraction (PHWE), were evaluated in order to investigate the potential of cajazeira leaves as an alternative source of bioactive compounds. The extraction methods were compared in terms of yield, chemical composition and total phenolic content (TPC) of the extracts. The highest yields and TPC values were obtained by TE with a mixture ethanol: water (70:30%, v/v) as the solvent. PHWE has not yet been applied for the extraction of cajazeira leaves. Thus, it was evaluated as one alternative for the recovery of phenolic compounds under conditions of 80, 100 and 120 °C and 100 and 120 bar. A modeling study of PHWE kinetics was investigated at 80 °C and 200 bar. Furthermore, a biorefinery approach considering integrated processes to recover bioactive compounds was investigated and the results showed that combining processes may enhance the valorization of agricultural waste.
  • The water extract and the lectin WSMoL from the seeds of Moringa oleifera prevent the hypertension onset by decreasing renal oxidative stress Biomedical Sciences

    SILVA, JEOADÃ KAROLLYNE; VERAS, ALANA CAROLINA C.; SOUSA, SHIRLEY MARIA; ALBUQUERQUE, JESSICA S.S.; RIBEIRO, FERNANDA PRISCILA B.; LIMA, NATALIA KRYZIA S.; NASCIMENTO, LARYSSA BEATRIZ S.; ALVES, ROBSON R.V.; AIRES, REGINA S.; COELHO, LUANA CASSANDRA B.B.; NAPOLEÃO, THIAGO HENRIQUE; PAIVA, PATRÍCIA MARIA G.; PAIXÃO, ANA D.; VIEIRA, LEUCIO D.

    Resumo em Inglês:

    Abstract Maternal endotoxemia disturbs the intrauterine environment, impairs nephrogenesis, and increases the risk of hypertension and kidney disease in adulthood. Here, it was investigated whether maternal treatment with the water extract of Moringa oleifera seeds (WEMoS) or the water-soluble M. oleifera seed lectin (WSMoL) prevents the oxidative stress induced by lipopolysaccharide (LPS) in pregnant rats, and the renal injury and hypertension in the adult offspring. The administration of WEMoS or WSMoL prevented the stimulatory effects of LPS on lipid peroxidation in the maternal-placenta-fetuses environment. The impact of WEMoS was linked to decreased superoxide anions production in the placenta. The effects of WSMoL were parallel to the inhibition of superoxide anion production and NADPH oxidase activity. The WSMoL also prevented increased NADPH oxidase activity in the fetal kidney. The LPS offspring presented higher systolic blood pressure (SBP) and increased lipid peroxidation, reactive oxygen species (ROS), NADPH oxidase activity, and nitrate/nitrite in the kidney; the maternal treatment with WEMoS and WSMoL prevented these changes. In conclusion, the present study demonstrates that WEMoS and WSMoL have protective effects on maternal endotoxemia, which involve antioxidant and anti-inflammatory actions that prevent the programming of hypertension.
  • Forensic age estimation from ossification centres: a comparative investigation of imaging and physical methods Biomedical Sciences

    SIWAN, DAMINI; KRISHAN, KEWAL; SHARMA, VISHAL; KANCHAN, TANUJ

    Resumo em Inglês:

    Abstract Age estimation is a crucial component of human identification in forensic science. It has a vital role in forensic anthropology, including examinations of skeletal remains, disaster victim identification, and locating missing individuals. Present communication focuses on the age estimation through the examination of ossification centers of bones and its significance in identifying the age of 18 years old, a recognized age of majority in many countries. The process of ossification is integral to biological development and serves as critical standard for age estimation in forensic identification. This study reviews relevant literature from well-known databases such as PubMed, Scopus, Web of Science, and ScienceDirect. Additionally, the present review elaborates various classification methods used by authors to classify the stages of ossification centers of bones. The objective of this communication is to assess the effectiveness of both imaging and physical methods for age estimation and to provide a critical comparison to determine the superior approach. The findings suggest that imaging methods are more reliable for the estimation of age from ossification centers. Staging methods introduced by Schmeling et al, Kellinghaus et al, Dedouit et al, Vieth et al, and Kvist et al. are found to be the best methods for age estimation.
  • Plant phytochemicals-mediated synthesis of zinc oxide nanoparticles with antimicrobial, pharmacological, and environmental applications Biomedical Sciences

    KAMAL, ASIF; AKHTAR, MUHAMMAD SAEED; NAZISH, MOONA; TAHIRA, KHADIJA TUT; RAHMAN, KHURSHEED UR; IQBAL, ATTIYA; KAMAL, KHALID; ALREFAEI, ABDULWAHED FAHAD; FARAJ, TURKI KH.; ZAMAN, WAJID

    Resumo em Inglês:

    Abstract Nanotechnology is a fast-growing field with large number of applications. Therefore, the current study, was designed to prepare Zinc Oxide nanoparticles (ZnO NPs) from A. modesta leaves extract through a cost-effective method. The prepared NPs were characterized through UV-Vis Spectroscopy (UV–Vis), Dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD), scanning electron microscope (SEM), and energy dispersive X-ray (EDX). The XRD and DLS analysis revealed the hexagonal nanocrystalline nature of ZnO NPs. The FTIR results displayed multiple fictional groups and UV results confirmed its optical properties. The average size of the NPs was 68.3 nm with a band gap of 2.71 eV. The SEM images divulge a clover leaf shape of ZnO NPs. The EDX spectrum revealed the presence of zinc and oxygen. The prepared NPs showed excellent biomedical application. The highest antileishmanial activity was 68%, anti-inflammatory activity was 78%, total antioxidant capacity (TAC) was 79.1%, antibacterial potential (ZOI) 22.1 mm, and highest growth inhibition of 85 ± 2.1% against A. rabiei. The adsorption efficiency of 85.3% within 120 min was obtained. Conclusively ZnO NPs have shown potential biomedical and environmental applications and ought to be the more investigated to enhance their practical use.
  • The changes of peripheral blood hub genes in 24-week-old APP/PS1/Tau triple transgenic mouse model based on weighted gene co-expression network analysis Health Sciences

    LIU, HEXU; YU, CHANGYIN; QIN, CHAO

    Resumo em Inglês:

    Abstract Peripheral regulation emerges as a promising intervention in the early stages of Alzheimer’s disease (AD). The hub genes in the peripheral blood of MCI patients from GEO database (GSE63060, GSE63061) were screened using weighted gene co-expression analysis (WGCNA). Meanwhile, behavioral tests, HE staining and Nissl staining were used to detect the memory impairment and histopathological changes in 24-week-old male 3×Tg-AD mice. Thioflavin-S and immunohistochemical staining were used to determine the Aβ deposition in both intracellular and extracellular neurons. Subsequently, the MCI-hub genes were verified by quantitative real-time PCR (qRT-PCR) in the peripheral blood of 3×Tg-AD mice. The research revealed ten hub genes associated with MCI were identified WGCNA. Short-term memory loss, intracellular Aβ deposition and limited of extracellular amyloid plaques in 3×Tg-AD mice. The qRT-PCR analysis of peripheral blood from these mice revealed significantly down-regulation in the expression levels of ATP5C1, ITGB2, EFTUD2 and RPS27A genes; whereas the expression level of VCP gene was significantly up-regulated. These findings confirmed that 24-week-old male 3×Tg-AD mice were a valuable animal model for simulating the early symptomatic stages of AD. Additionally, the peripheral blood MCI-hub genes related to immune response, energy metabolism and ribosomal coding efficiency provide potential biomarkers for this stage.
  • Effect of Melatonin Administration on Nerve Regeneration after Recurrent Laryngeal Nerve Injury Health Sciences

    CELIK, BILGEHAN; KARA, AHMET; GUVEN, MEHMET; DOGANAY, SONGÜL; BUDAK, ÖZCAN; GUVEN, EBRU M.; COLAK, TUNCAY; ERDEM, AHMET F.; YİLMAZ, MAHMUT S.

    Resumo em Inglês:

    Abstract Recurrent Laryngeal Nerve (RLN) injury is a complication in neck surgery. The aim of this study is to evaluate the effect of primary suture repair with melatonin treatment on nerve regeneration after RLN damage. After the RLN damage, nerve repair was performed in the first and fourth groups. The third and fourth groups were given intraperitoneal melatonin therapy daily for six weeks. EMG was applied to all subjects and vocal cord movements were evaluated endoscopically. At the end of the sixth week, all subjects were sacrificed, and their larynx were examinedhistologically. Vocal cord paralysis (VCP) was observed in all subjects after RLN damage. In the sixth week, improvement was observed in the first and fourth group who underwent nerve repair, whereas none in the second and third group, who did not undergo nerve repair, improved. With EMG, the highest MUP was in the fourth group. Histologically, an increase in Schwann cells, a decrease in axon damage, and cytoplasmic vacuolization were in the fourth group. Myelin protein zero and Ki-67 staining were the most in the fourth group. In our study, laryngoscopic, electrophysiological and histopathological findings show that melatonin contributes to nerve healing but this could not translate into functional recovery.
  • Consent for organ donation: a case study in the light of bioethics Health Sciences

    GOMES, KELLY C.B.; ESPERANDIO, MARY R.G.; SIQUEIRA, JOSÉ E. DE; GOLDIM, JOSÉ R.

    Resumo em Inglês:

    Abstract Fewer donations are being made in Brazil to meet the growing organ demand. Organ donation in Brazil reached an average of 53% consent. However, hospitals in Paraná have reached a level of 94.2%. What reasons could be given for these levels? Accordingly, this study aimed to understand the causes involved in decision-making to donate organs. The methodology used was qualitative based on a case study. Data was collected at a hospital in Toledo, a city in Paraná, through documentary research and semi-structured interviews with two distinct groups: professionals responsible for the family approach to donation and five families consenting to donation. The search for data was restricted to the period between 2015 and 2023. Data analysis used Bardin’s content analysis. The results were organized into four categories in the first group, and two categories in the second group, suggesting that aspects linked to bioethical references present in the interview, such as beneficence and autonomy, contribute to the emergence of high rates of family consent for organ donation in the hospital studied. It is recommended for future research to test successful interview models to reverse the current organ donation rates in Brazil.
  • Morphology of the Female Receptaculum Seminis of Euschistus heros (FABRICIUS, 1798) (INSECTA: HEMIPTERA: PENTATOMIDAE) Cellular And Molecular Biology

    SOUZA, EDMILSON A.; VAL, RAFAELA M.M. DO; LISBOA, LUCIANE C.O.; FERNANDES, FLÁVIO L.; SERRÃO, JOSÉ E.

    Resumo em Inglês:

    Abstract Euschistus heros (Fabricius, 1798) (Heteroptera: Pentatomidae) is a soybean pest in Brazil. It has a reproductive success that may be associated with the female receptaculum seminis or spermatheca, a reproductive organ for spermatozoa storage until the oocyte fertilization. This study describes the anatomy and histology of the female receptaculum seminis in E. heros. The female receptaculum seminis was dissected and analyzed with a stereomicroscope, following standard procedures for histological and histochemical analyses. The female receptaculum seminis of E. heros has a spherical caspula seminalis and a duct. The epithelial cells of the capsula seminalis have two cell layers with basal one presenting columnar cells with a collecting canaliculus opening in the lumen. The apical layer has cuboidal cells. The cytoplasm in both cell layers was rich in protein. These features suggest a secretory function of these cells. The duct has four regions characterized by muscular pars intermedialis with anterior and posterior cuticular flanges, an elongated and narrow distal ductus receptaculi, a well-developed enlarged vesicular area, and a proximal ductus receptaculi, which indicate several functions, such as control the release and transport of spermatozoa and secretory. These results contribute to the comprehension of the reproductive biology of this agricultural pest.
  • Ora-pro-nobis (Pereskia aculeata) supplementation promotes increased longevity associated with improved antioxidant status in Drosophila melanogaster Cellular And Molecular Biology

    SANTOS, AMANDA M. DOS; MUSACHIO, ELIZE; ANDRADE, STEFANI S.; JANNER, DIENIFFER E.; MEICHTRY, LUANA B.; LIMA, KATTIELE F.; FERNANDES, ELIANA J.; PRIGOL, MARINA; KAMINSKI, TIAGO ANDRÉ

    Resumo em Inglês:

    Abstract This study evaluated the effects of ora-pro-nobis (Pereskia aculeate) flour supplementation on the in vivo basal antioxidant system of Drosophila melanogaster, and its action on the neural modulation observed by the enzyme acetylcholinesterase (AChE). The flies will receive a standard diet with flour incorporated at 5, 10 and 20% for 7 days. There was no change in food consumption, body weight, protein thiol levels and negative geotaxis behavior. The flies showed a reduction in the basal production of reactive species at concentrations of 10 and 20%, while there was a reduction in lipid peroxidation and catalase activity at all concentrations, accompanied by an increase in the levels of non-protein thiols. Superoxide dismutase activity was reduced in the 5 and 20% groups, while the reduction of superoxide anion in the 10% group may have contributed to the increase in longevity also in the 10% group. Longevity increased in groups 5 and 10%. The open field test may be related to the reduction in AChE activity in the 5, 10 and 20% groups. In general, the data show that supplementation with ora-pro-nobis flour at the concentrations tested did not cause toxicity and modulated the cholinergic system, demonstrating a therapeutic potential.
  • Vessel element morphology of Allagoptera campestris (Mart.) Kuntze (Arecaceae) belowground organs affected by growing conditions Cellular And Molecular Biology

    APPEZZATO-DA-GLÓRIA, BEATRIZ; PACE, MARCELO RODRIGO; SOUZA, DAIANE DOS S.; SILVA, GABRIELA S. DA; BARBOSA, LUCAS HENRIQUE S.

    Resumo em Inglês:

    Abstract Allagoptera campestris is an acaulescent, rhizomatous palm tree that occurs in grassland and savanna areas (Cerrado). In the Santa Bárbara Ecological Station (Águas de Santa Bárbara, São Paulo, Brazil) the species is found growing in three distinct conditions: 1) in the understory of Pinus species plantations introduced in the 1970s in formerly open savanna, 2) in an area where Pinus species cultivated in the 1970s were later removed and the remaining material burned, and 3) in an open, undisturbed savanna area without the interference of pines. Anatomical studies carried out with A. campestris leaves collected in the same three areas indicated leaf plasticity in response to growth conditions. To verify whether there are differences in vessel element morphology in belowground organs, light, and scanning electron microscopy analyses were conducted on portions just below the crown, in the middle of the rhizome, and the median portions of three longer adventitious roots sampled from three plants in each area. The study reveals significant variations in vessel element characteristics of A. campestris, with roots consistently displaying longer and larger elements than rhizomes, and environmental conditions, especially in pine understory, influence vessel dimensions, and hydraulic conductivity in a negative manner.
  • Phylogeny, morphology, and haplotypic distribution of Biomphalaria straminea populations from the five geographic regions of Brazil Cellular And Molecular Biology

    NOGUEIRA, RAIANY T.; GOMES, SUZETE R.; FERNANDEZ, MONICA A.; BARBOSA, KEVIN P.; SOUSA, ARIELLY KELLY P. DE; MARCHI, CAROLINA R.; THIENGO, SILVANA C.

    Resumo em Inglês:

    Abstract Biomphalaria straminea is one of the three snails that act as the intermediate hosts of Schistosoma mansoni and is responsible for maintaining high rates of schistosomiasis in some areas of northeastern Brazil. The principal morphological characteristic of B. straminea is the marked vaginal wrinkling, although it is also present in congeneric species, a group known as the B. straminea complex. Based on the morphological and molecular analyses, we investigated the intraspecific variation of B. straminea. The specimens were obtained from 10 sites in Brazil, and the shells were analyzed, as well as 16 morphological structures of the reproductive system. The COI and ITS2 sequences were used for phylogenetic analysis, genetic divergence, and haplotype network (COI). We observed a large intraspecific variation in the morphological structures examined. The genetic divergence also demonstrated significant intraspecific variability in B. straminea: 0–3% in ITS2 sequences, and 0–6% in COI sequences. Analysis of the distribution of COI haplotypes recovered 16 haplotypes and haplotype diversity of 0.9088. These results indicate phenotypic variability that is not constrained to a locality or strictly controlled genetically by B. straminea, which may have driven a misidentified of these species.
  • Methods to protein and peptide extraction from microalgae: a systematic review Microbiology

    SOUZA, ARIADNE TENNYLE V. DE; SOUZA, KAROLINE MIRELLA S. DE; AMORIM, ANDREZA P. DE; BEZERRA, RAQUEL P.; PORTO, ANA LUCIA F.

    Resumo em Inglês:

    Abstract Currently, there is a demand for protein sources that do not use soil management or animal breeding. Among these sources we highlight the microorganisms, such cyanobacteria and microalgae, which have a simple growth using light, CO2, water and some mineral salts to generate high protein production. The extraction of these proteins depends on the method used. The most used methods for extracting bio-functional proteins are mechanical, chemical and enzymatic. The aim of this work is to analyze the protein extraction methods in microalgae using Scielo, ScienceDirect and NCBI (PubMed) electronic databases that made it possible to select original studies published in the last five years (2018-2023). A total of 2707 articles, 25 of which were selected for further analysis and subjected to risk of bias assessment. The genera Chlorella, Scenedesmus and Nannochloropsis were the most studied due to their high protein content. Mechanical methods and chemical hydrolysis are the most used methods, achieving an extraction yield of 46.0 % and 64.0 %, respectively. The best extraction results are obtained with a combination of methods, reaching up to 80.0 % yield. However, some aspects need to be observed to choose an ideal protein extraction method.
  • Marine-derived fungus Paramarasmius palmivorus CBMAI 1062 applied to sulphur indigo blue decolorization, degradation and detoxification Microbiology

    PELLIZZER, ELISA P.; GIOVANELLA, PATRICIA; FARIA, ADRIANO U. DE; SETTE, LARA D.

    Resumo em Inglês:

    Abstract The use of marine microorganisms in the treatment of dyes and textile effluents is promising in view of their tolerance to salinity, a characteristic found in this kind of effluent. In this study, different culture conditions were applied to evaluate the decolorization, degradation, and detoxification of Sulphur Indigo Blue (SIB) by the marine-derived basidiomycete Paramarasmius palmivorus CBMAI 1062. Low salt concentration (SLS) and high salt concentration (SMASHS) media were used. P. palmivorus decolorized 100 % and 91.38 % of SIB after 120 h of growth in the SLS medium and after 168 h of growth in the SMASHS medium, respectively. Laccase activity was detected only in the SLS bioassay. UV-Vis, FT-IR, and GC-MS analyses indicated the occurrence of dye biosorption and biotransformation. In the SLS medium metabolites associated with SIB biotransformation (e.g. aldehyde, alkanes, and phenols) were detected. The toxicity measured by Cucumis sativus decreased from 45.41 % to 24.11 % in the SLS bioassay, while in SMASHS medium there was no change in toxicity. The efficiency for decolorization and detoxification of SIB indicates that microorganisms from the marine environment can be a source for biotechnological application in bioremediation processes carried out under saline conditions, adding value to blue biotechnology.
  • Essential oil vapor phase approach for antimicrobial evaluation using Hesperozygis myrtoides (A. St.-Hill. ex Benth.) Epling (Lamiaceae) as a model Microbiology

    PEREIRA, MARCOS AURÉLIO A.; SARTORATTO, ADILSON; MIGUEL, CRISTINA MAIRA T.S.; MURAKAMI, CYNTHIA; SILVA, FABIANA L.; CORDEIRO, INÊS; MACHADO, KAMILLA N.; YOUNG, MARIA CLÁUDIA M.; KANEKO, TELMA MARIA; LOPES, PATRÍCIA S.; MORENO, PAULO ROBERTO H.

    Resumo em Inglês:

    Abstract The demand for less hazardous and environmentally friendly surface disinfectants is growing and essential oils may be efficient alternatives. Vapor phase assay is a promising technique which explore the volatility of essential oils for determining the antimicrobial activity. In this study, we modified the conditions of the inverted Petri dish technique to evaluate the minimum inhibitory concentrations (MIC). As a proof of concept, the antimicrobial activity of Hesperozygis myrtoides essential oil (HM) was studied for the first time in the vapor phase. According to the established protocol the oil volatilization dynamics was used to determine the major compounds in the vapor phase. After 270 min, the relative percentage was like that observed in the crude oil analysis. The HM was also evaluated for safety (IC50=921.2 µg ml-1), being considered safe in case of acute oral exposure. The oil vapors completely inhibited the growth of Staphylococcus aureus (MIC=0.39 mg l-1), Candida albicans (MIC=0.83 mg l-1), Aspergillus brasiliensis (MIC=378 mg l-1) and Bacillus subtilis (MIC=704.8 mg l-1). This protocol offers an economical and efficient alternative for antimicrobial activity and safety determination of essential oils, can be used for the evaluation of several applications of essential oils, as disinfectant agent in inhabited environments.
  • Evaluation of (-)-Fenchone antimicrobial activity against oral Candida albicans and toxicological parameters: an in silico, in vitro and ex vivo study Microbiology

    SANTOS, ANDRÉ A. DOS; OLIVEIRA-FILHO, ABRAHÃO A. DE; TEIXEIRA, BRÁULIO A.; GALVÃO, JOSÉ LUCAS F.M.; MEDEIROS, MARIA ALICE A. DE; ALVES, MILLENA S.; BARBOSA, DAVID HENRIQUE X.; MAFRA, RODRIGO P.; VASCONCELOS, ULRICH; LIMA, EDELTRUDES O.

    Resumo em Inglês:

    Abstract Candida albicans is the primary species causing oral candidiasis. Its increasing drug resistance drives the search for more effective antifungal agents. Therefore, we assessed toxicological parameters and the antimicrobial activity and mechanisms of action of the monoterpene (-)-fenchone against oral C. albicans. We conducted an in silico study using PASS online and AdmetSAR, followed by evaluation of antifungal activity through Minimum Inhibitory Concentration (MIC), Minimum Fungicidal Concentration (MFC), association study with miconazole, and assays with sorbitol and ergosterol. Inhibition of biofilm formation and disruption of preformed biofilm were considered. Toxicity was also assessed through hemolysis assay. The in silico study revealed a higher likelihood of the compound being active for antifungal activity, as well as promising pharmacokinetic and toxicity characteristics. Subsequently, (-)-fenchone exhibited predominantly fungicidal activity (MIC90 = 8 μg/mL; MFC = 16 μg/mL), including against miconazole-resistant C. albicans isolates. The substance does not appear to act by damaging the fungal cell wall or plasma membrane, and exhibited synergy with miconazole. There was activity in inhibiting biofilm formation but not in disrupting preformed biofilm. Finally, the product exerted low hemolytic activity at more than MIC×10. Based on these results, (-)-fenchone may represent a promising therapeutic alternative for oral candidiasis.
  • Determinants of anuran assemblages in Amazonian White-sand Ecosystems Ecosystems

    PEREIRA, RAFAELA CAROLINE S.; DAYRELL, JUSSARA S.; MELINSKI, RAMIRO DÁRIO; LIMA, ALBERTINA P.

    Resumo em Inglês:

    Abstract Amazonian white-sand ecosystems have predominantly sandy soils and a high amount of endemism, and several species found within them are adapted to long periods of drought. However, little is known about the variation in the structure of anuran assemblages in these ecosystems. Considering that most species are not uniformly distributed in heterogeneous landscapes, we tested the hypothesis that anuran assemblage variation in white-sand ecosystems is related to changes in vegetation structure. Specifically, we focused on a heterogeneous patch of white-sand ecosystems of the central Amazon and evaluated whether vegetation structure and soil characteristics, including root depth, influence the richness, abundance, and composition of anuran assemblages. Our results showed that low amounts of clay in the soil play an important role in structuring vegetation in these ecosystems, and these are the main factors that organize anuran assemblages. The Campinaranas close to the water bodies have a high species richness, while Campina landscapes limit the occupation of most of species. Our findings indicate that anurans undergo environmental filtering in white-sand ecosystems and are organized into hierarchical subgroups, in which only species with specialized reproduction can successfully occupy the most water-restricted environments.
  • Aquatic insects in subtropical streams: the role of different grassland ecosystems and local environmental descriptors Ecosystems

    MENNA-BARRETO, TAINARA R.; SIEGLOCH, ANA EMÍLIA; SANTOS, SANDRO; SANTOS, TIAGO G. DOS; VELLOSO, MARCOS ANDRÉ P.; SPIES, MARCIA REGINA

    Resumo em Inglês:

    Abstract Organisms can respond to environmental gradients from local to landscape features. Aquatic insects are particularly affected by watershed peculiarities due to their dependence on microhabitat conditions. However, these relationships are poorly understood in lotic ecosystems of subtropical grasslands, limiting water resources management and bioassessment proposals. Here, we investigated how local stream environment and variations in landscape types affect the assemblage structure of a bioindicator insect group, face to the spatial proximity of the sampled locations. We sampled immatures of Ephemeroptera, Plecoptera, and Trichoptera in streams along the Brazilian Pampa biome, recording environmental descriptors in different grassland ecosystem types. The structure of aquatic insect assemblages differed across grassland types, with specific dominant genera associated with each landscape. Spatially-structured water physicochemical descriptors explained a significant amount of variation in assemblage data. Our findings suggest that grassland ecosystem type delimitations capture ecological attributes, influencing watershed features important to EPT assemblage structuration. Moreover, we highlight the importance of niche-based process structuring EPT assemblages along grassland ecosystem types of Pampa biome. In addition, we encourage using aquatic insects in bioassessment of lotic waters to assess local and landscape environmental impacts. We strongly recommend considering the grassland ecosystem schedule for water resources management and bioassessment proposals.
  • Barnadesieae, Gochnatieae, Mutisieae and Nassauvieae (Asteraceae) in the Atlantic Forest of Caparaó National Park, Brazil Ecosystems

    RENON, POLLA; MONGE, MARCELO; NAKAJIMA, JIMI N.

    Resumo em Inglês:

    Abstract Asteraceae is highly diverse in the Atlantic Forest, especially in montane environments. The early-diverging tribes within Asteraceae are of particular interest because of their great representation in Brazil and unique features within the family. Thus, a floristic inventory and systematic treatment of these basal grade in Caparaó National Park, an important remnant of Atlantic Forest that has been highlighted for its diversity and endemism, were undertaken. The study was conducted by examining specimens from representative collections of Caparaó and a field expedition. A total of 15 species were found, representing six genera and four tribes, with Mutisieae and Nassauvieae being the most representatives. Six of the species have restricted distributions, either to Brazil (3 spp.), the Atlantic Forest (2) or Caparaó mountain (Mutisia lutzii). Three new records were documented for the park, namely Chaptalia integerrima, Moquiniastrum polymorphum and Mutisia coccinea. Floristic inventories and systematic treatments can make great contributions to science by bringing a better understanding our biodiversity and providing relevant information about flora for the conservation of priority areas.
  • Citizen complaints in local media as source of mosquito data: the case of Aedes albifasciatus in an intermediate city of temperate Argentina Ecosystems

    GALLEGO, MARÍA ALEJANDRA; SIMOY, MARÍA VERÓNICA; VEZZANI, DARÍO

    Resumo em Inglês:

    Abstract Floodwater mosquitoes provoke nuisance due to their mass emergence. Citizen complaints about outstanding events of mosquitoes in urban areas are usually reflected in local media and could be potentially used as data. Our objective was to build a temperature dependent function to characterize the immature development time of the floodwater mosquito Ae. albifasciatus in Tandil (Argentina), and validate it using citizen complaints in local media and field collected mosquitoes. The development time obtained ranges from 5-47 days at 30-7°C, respectively. During 2000-2021, nine mosquito abundance peaks were identified through local journalistic records. For these events, the estimated hatching date was successfully associated with a previous precipitation, with a maximum difference of two days. The precipitation identified as the trigger for egg hatching ranged from 15 to 121 mm. Then, to associate mosquito news with the target species, female mosquitoes were captured by a battery-powered aspirator in green areas of the city during September 2019-June 2021. Six mosquito abundance peaks were detected in which Ae. albifasciatus accounted for 97.3% of the captures. Among them, journalistic records were able to detect the largest two; i.e. in our study above 15 mosquitoes in a five minute collection. Citizen complaints related to nuisance or vector species could be valuable retrospective data for researchers of different fields.
  • Flesh flies (Diptera: Sarcophagidae) from transitional Caatinga-Cerrado areas in the state of Piauí, Northeast Brazil Ecosystems

    SILVA, JOSÉ ORLANDO A.; CÂMARA, JOSENIR T.; LEAL, KALIANE D.; CARVALHO-FILHO, FERNANDO S.

    Resumo em Inglês:

    Abstract The Sarcophagidae family (Diptera) encompasses a group of flies of significant ecological importance. Additionally, numerous species within this family hold substantial value in the realms of medicine, veterinary and forensic science. The objective of this study was to conduct a comprehensive survey of Sarcophagidae species within transitional zones between the Caatinga and Cerrado biomes in the Northeastern region of Brazil. To achieve this, a total of 15 field expeditions were conducted across three distinct phytophysiognomies—riparian, vereda, and a segment of shrubby Caatinga—from 2019 to 2021. A total of 16 genera and 40 species were collected. Among them, a new species for science (Titanogrypa (Airypel) sp. nov.), Emblemasoma emblemasoma Dodge is newly recorded from South America/Brazil and the Caatinga biome, and three species constitute new records for the Northeast region (Dexosarcophaga patiuorum Santos, Pape & Mello-Patiu, Lepidodexia (Notochaeta) fumipennis (Lopes), and Oxysarcodexia meridionalis (Engel)). The most abundant species were Oxysarcodexia thornax (Walker), Oxysarcodexia avuncula (Lopes), and Argoravinia (Argoravinia) catiae Carvalho Filho & Esposito, collectively constituting 56.11% of the entire collected sample. The distribution of species across different vegetations was noted, with 19 species exclusive to riparian vegetation, three to vereda vegetation, and seven species unique to the Caatinga.
  • Palynological Investigations of the Miocene sediments from Murree formation of Pakistan: Evidence for Palaeoenvironment and Palaeoclimate interpretations Paleontology

    AHMAD, SHABIR; AHMAD, MUSHTAQ; ZAFAR, MUHAMMAD; SULTANA, SHAZIA; RAMADAN, MOHAMED FAWZY; GILANI, SYED NOHMAN; ABBASI, MARYAM ANJUM; JABEEN, SHAISTA

    Resumo em Inglês:

    Abstract The present study was carried out to investigate the palynoflora of Murree formation using microscopic techniques to understand the climatic changes and vegetation’s evolution. In this palynological study, 31 samples were collected, analyzed, and then identified as palynomorphs using different previous published literature. The results of this study will be described in terms of the evolutionary history of plants and the depositional environment of the reported taxa in the study area. The botanical affinities and systematic description of the taxa were examined using light and scanning electron microscopy. The floral record identified Asteraceae as the dominant family and Pinus as a genus. Most of angiosperms i.e Fabaceae and Poaceae, have a poor fossil record but have an abundant palynological record in the study area. The highest polar diameter (75.75 μm), colpus length (34.5 μm) and colpus width (31 μm) were examined for the Convolvulus. Most of the taxa explained here had a wide geographical occurrence in Southeast Asia and show the abundance of angiosperms in the Miocene epoch. The palynological record of Holocene samples is important to know about the vegetation’s origin and environmental fluctuations in the study area.
  • Reproduction in the spider mite Oligonychus yothersi (Acari: Tetranychidae) Animal Science

    FERLA, JÚLIA J.; GRANICH, JULIANA; FERLA, NOELI J.

    Resumo em Inglês:

    Abstract In this work we reported injuries caused by the spider mite Oligonychus yothersi on Vitis vinifera leaves and we also investigate the sex ratio of this species under laboratory conditions. To access the aspects regarding reproduction, females were placed individually in arenas made of V. vinifera leaves to oviposit and all progeny were mounted on slides when they reached adulthood to confirm the offspring sex. Our study showed that O. yothersi reproduces by thelytokous /arrhenotokous parthenogenesis, generating low number of males. Additionally, we found vine plants with leaf browning, particularly on the adaxial surface, where mites were usually found.
  • Review of the Brazilian species of the genus Climaciella Enderlein (Neuroptera: Mantispidae), with the description of two new species Animal Science

    ALVIM, BRENO G.C.; MACHADO, RENATO JOSE P.; KROLOW, TIAGO K.

    Resumo em Inglês:

    Abstract Climaciella Enderlein is a genus of the family Mantispidae (Neuroptera) restricted to the New World with records ranging from southern Canada to northern Argentina. The genus is currently represented by 12 valid species, three of them with records from Brazil: C. amapaensis Penny, C. duckei Navás, and C. semihyalina (Le Peletier & Audinet-Serville). Besides the relatively low number of species from Brazil, it is known that Climaciella species present some historical taxonomic problems. In this sense, the main goal of this study was to taxonomically revise the Climaciella species from Brazil, providing detailed (re)descriptions and illustrations of all species, an updated distribution map, and an identification key to the whole genus. The study resulted in some new taxonomic acts: C. tincta (Navás) is revalidated and C. duckei is considered a new synonym of C. tincta; two new species are described: Climaciella hoffmani sp. nov. and Climaciella pennyi sp. nov.
  • Triatomines know no boundaries: Triatoma delpontei Romaña & Abalos, 1947 (Heteroptera: Reduviidae) discovered in Mato Grosso do Sul State, Brazil Animal Science

    GIL-SANTANA, HÉLCIO REINALDO; ALMEIDA, PAULO S. DE; FERREIRA, DOUGLAS S.; BARBOSA, CAMILA A.; ALEVI, KAIO CESAR C.; OLIVEIRA, JADER DE

    Resumo em Inglês:

    Abstract Triatominae are recognized as vectors of Trypanosoma cruzi, a protozoan which is the etiological agent of Chagas disease. A specimen of Triatoma delpontei was found at Porto Murtinho in Mato Grosso do Sul State, Brazil. This is the first report of the occurrence of T. delpontei to the state of Mato Grosso do Sul, Brazil. With the present finding, the total number of triatomines recorded in Mato do Grosso do Sul reaches 17 species, while T. delpontei, previously recorded only from Rio Grande do Sul, is now recorded to a second Brazilian state. Based on the information available in the literature, a meticulous and organized compilation has been crafted, highlighting the cytogenetics differentiations of the species occurring in this state. This work emphasizes the importance of continuous research and surveillance on Triatominae, recognized as vectors of T. cruzi.
  • Morphological study for Accipitrid birds (Accipitridforms, Accipitridae) in Iraq; part two Animal Science

    HADI, AFKAR M.; JASSIM, SUHAD Y.; HADI, HIND D.; HASOON, KHALIDA I.

    Resumo em Inglês:

    Abstract A part two of Accipitridae Family members that belong to three genera: Circus, Gyps, and Neophron were documented as morphometrics, distribution ranges, and conservation status were reviewed and comprehensively discussed. A total of 29 voucher specimens belong to six species which are conserved in the “Iraq Natural History Research Center and Museum INHM” as follow: Marsh Harrier Circus aeruginosus (Linnaeus, 1758), Hen Harrier Circus cyaneus (Linnaeus, 1766), Montagus Harrier Circus pygargus (Linnaeus, 1758), Pallid Harrier Circus macrourus (Gmelin, 1770), Egyptian vulture Neophron percnopterus (Linnaeus, 1758), and Griffon vulture Gyps fulfus (Hablitz, 1783). The results revealed significant criteria about near threatened NT species IUCN and Birdlife International listed as Pallid Harrier Circus macrourus, and Endangered (EN) species as Egyptian vulture Neophron percnopterus globally decreasing population trend.
  • Oviposition behavior of the parasitoid Telenomus remus (Hymenoptera: Scelionidae) on eggs of Spodoptera frugiperda (Lepidoptera: Noctuidae) Animal Science

    ARAÚJO, MIKAEL B.; PEGLOW, STHEFANI VICTÓRIA R.; RAKES, MATHEUS; ESCHER, JOÃO PEDRO; RIBEIRO, LEANDRO P.; BERNARDI, DANIEL; ZEFA, EDISON; GRÜTZMACHER, ANDERSON DIONEI

    Resumo em Inglês:

    Abstract Telenomus remus (Hymenoptera: Scelionidae) is an efficient parasitoid of Spodoptera eggs. However, biological control programs require taxonomic, bioecological and behavioral studies of biological agents. Although the performance of T. remus in pest control has been evaluated, little is known about its behavioral aspects that can influence IPM tactics. The aim of this study was therefore to study the parameters related to the oviposition behavior of T. remus on Spodoptera frugiperda (Lepidoptera: Noctuidae) eggs. The experiment was conducted in the laboratory, where 17 females were transferred individually to arenas containing a mass of S. frugiperda eggs. Oviposition behavior was recorded for 30 minutes. The average walking speed of the females was 0.116 mm.s-1 and the total distance covered was 203.3 mm. The females remained on the egg masses for an average of 16.7 min, which corresponds to more than half of the total time. The average number of parasitized eggs was 15.1 per female in 30 minutes. Females with larger antennae had lower values for average speed and total distance covered. The results of the parameters evaluated show the standard oviposition behavior of T. remus females on S. frugiperda eggs and help us to better understand the species.
  • The importance of protected areas for threatened Brazilian butterflies Animal Science

    ROSA, AUGUSTO H.B.; FREITAS, ANDRÉ V.L.

    Resumo em Inglês:

    Abstract The present study aims to disclose the importance existing protected areas (PAs) and their level of protection for the conservation of the threatened Brazilian butterflies. A total of 898 occurrence records were found for all 63 species of butterflies present in the current Brazilian Red list. For all studied taxa, at least one occurrence record is within the limits of a PA. More than half of the occurrence records (61.9%) are within the limits of PAs, but less than half (41.7%) of these records are present in fully protected areas. For 17 taxa (27%), less than 50% of their records are within PAs, thus being completely unprotected. For butterfly taxa in the category “critically endangered”, 42.6% of their occurrence records falls outside PAs. Almost 99% of the records are concentrated in the Atlantic Forest and the Cerrado, the two most threatened Brazilian biomes and global hostspots of biodiversity. In conclusion, the present study showed an important panorama of how threatened Brazilian butterflies are protected (or not). Anyway, it is important to highlight that for any record inside a PA, some level of protection is provided for these taxa against the advance of environmental destruction caused by human activities.
  • Land use and occupation and pesticide contamination assessment in honey from Africanized honey bees (Hymenoptera: Apidae) using gas chromatography-mass spectrometry Animal Science

    CUNHA, FERNANDO DA; CHAMBÓ, EMERSON D.; COELHO, SILVIA RENATA M.; CAMARGO, SIMONE CRISTINA; GAMA, DRÁUZIO C.; GARCIA, REGINA C.

    Resumo em Inglês:

    Abstract We examined pesticide contamination in honey from Africanized honey bees in two different seasons, and evaluated the concentration and incidence of these compounds in georeferenced apiaries to provide relevant information for food safety and environmental quality. The land use and occupation of the region were evaluated by selecting 15 apiaries and georeferencing three randomly selected colonies of Africanized honey bees within each apiary. Honey samples were collected during two seasons, and three organochlorine pesticides (p.p`-DDE, Mitotane and Bicyclo[2.2.1]) and four organophosphate pesticides (Ethoprophos, Methyl Parathion, Chlorpyrifos and Fenchlorphos) were analyzed in the honey using gas chromatography-mass spectrometry. 80% of the apiaries showed a predominance of agricultural land use in the foraging areas of the bees. There was a higher concentration of pesticides in samples collected during Season I compared to Season II. There were differences in the proportion of samples contaminated with pesticides between seasons. Some honey samples showed concentrations of the chlorpyrifos pesticide above the levels recommended by Brazilian legislation. Pesticide contamination of honey is not limited to specific application season, indicating the persistent presence and easy availability of pesticides, including banned pesticides not sold or prescribed by agronomists, potentially smuggled from neighboring countries.
  • Ecological characterization of fleas on small mammals in natural and disturbed landscapes in the Atlantic Forest ecoregion, Argentina Animal Science

    URDAPILLETA, MARA; LAMATTINA, DANIELA; BURGOS, ELIANA FLORENCIA; SALOMÓN, OSCAR DANIEL; LARESCHI, MARCELA

    Resumo em Inglês:

    Abstract To understand the ecoepidemiology of fleas and their interactions with domestic and wild animals, it is necessary to decode the cycles of flea abundance in relation to host species and environmental factors. The province of Misiones, known for its biodiversity and land use changes, provides an excellent study location. We assessed the diversity, prevalence, abundance, and parasitic intensity of fleas collected from 1153 rodents and opossums in various environments in the Upper Paraná Atlantic Forest of Argentina, considering phytogeography and land use. Our findings were consistent with previous studies conducted in humid regions of Argentina and the Atlantic Forest in Brazil. Hosts with high population density exhibited greater flea prevalence and abundance, and widely distributed hosts showed higher flea species richness and diversity. Significant similarities in flea similarity indices among phytogeographic areas, especially in forest. Environments with an anthropogenic gradient exhibited marked dissimilarities, with higher species richness and diversity in less disturbed sites. These parameters may be influenced by the presence of polyxenous Ctenocephalides, Polygenis, and Adoratopsylla fleas co-infesting opossum in urban areas. These findings provide valuable insights into the ecoepidemiology of fleas, their relationships with host species, and the impact of environmental factors in a strategic Atlantic forest ecoregion.
  • Textile effluent treatment by reductive process using commercial steel wool followed by oxidative process Engineering Sciences

    FIGUEIREDO, ANA CAROLINA F.; SOUZA, KELY V. DE

    Resumo em Inglês:

    Abstract Textile industries stand out as one of the main polluters of water resources, generating large amounts of liquid effluents with variable composition and intense coloration. The objective of this work is the integration of the reductive process using commercial steel wool, combined with oxidative processes, in the treatment of textile effluent. The effect of the variables of the reductive process were studied using a 32 factorial design. After 30 minutes, the reductive process allowed a reduction of 68% COD, 46% TOC, 62% true color and 72% of total phenols, but showed an increase in color apparent and turbidity, due to the iron species formed by the oxidation of steel wool during the process. With the combined process using sunlight, the reduction was 73% COD, 50% TOC, 97% phenols, 93% true color and 48% apparent color. With artificial light, the reduction was 94% COD, 63% TOC, 95% phenols, 98% true color and 65% apparent color. The evaluation of the acute toxicity against Daphnia magna indicated that after the proposed treatments, the effluent did not present toxicity or the toxicity was reduced. It is concluded that the combined process can be considered an efficient alternative for the treatment of textile effluent.
  • The Emergence of Edgar Morin’s Complex Thinking Engineering Sciences

    BLAY, ENIO A.; PIQUEIRA, JOSÉ ROBERTO C.

    Resumo em Inglês:

    Abstract Edgar Morin is more than 100 years old and has produced numerous original ideas. Complex Thinking is his approach to complexity and took almost thirty years to be written. He developed it based on many other thinkers but chiefly, we argue, on Wiener’s Cybernetics, von Bertalanffy’s General System Theory and Shannon’s Information Theory. This article describes and discusses how those latter theories have been incorporated into Morin’s thought, especially in La Méthode, his magnum opus, and presents, in a comparative fashion, his pros and contras on each of them. In our conclusion, we discuss how some of Morin’s criticisms of the founding theories might be unjust and also present a summary of some judgmental appraisals of Complex Thinking.
  • AmpClass: an Antimicrobial Peptide Predictor Based on Supervised Machine Learning Engineering Sciences

    MERA-BANGUERO, CARLOS; ORDUZ, SERGIO; CARDONA, PABLO; ORREGO, ANDRÉS; MUÑOZ-PÉREZ, JORGE; BRANCH-BEDOYA, JOHN W.

    Resumo em Inglês:

    Abstract In the last decades, antibiotic resistance has been considered a severe problem worldwide. Antimicrobial peptides (AMPs) are molecules that have shown potential for the development of new drugs against antibiotic-resistant bacteria. Nowadays, medicinal drug researchers use supervised learning methods to screen new peptides with antimicrobial potency to save time and resources. In this work, we consolidate a database with 15945 AMPs and 12535 non-AMPs taken as the base to train a pool of supervised learning models to recognize peptides with antimicrobial activity. Results show that the proposed tool (AmpClass) outperforms classical state-of-the-art prediction models and achieves similar results compared with deep learning models.
  • Short-Term Wind Power Interval Forecasting Based on Hybrid Modal Decomposition and Improved Optimization Engineering Sciences

    WANG, JIXUAN; TANG, YIFAN; XI, ZENGFU; WEN, YUJING; WU, KEGUI; LI, YICHAO

    Resumo em Inglês:

    Abstract Accurate wind power prediction can effectively alleviate the pressure of the power system peak frequency regulation, and is more conducive to the economic dispatch of the power system. To enhance wind power forecasting accuracy, a hybrid approach for wind power interval prediction is proposes in this study. Firstly, an Improved Complete Ensemble Empirical Mode Decomposition with Adaptive Noise (ICEEMDAN) is applied to decompose the initial wind power sequence into multiple modes, and Variational Mode Decomposition is used to further decompose the high-frequency non-stationary components. Next, Fuzzy Entropy (FE) is utilized to assess the complexity of the post-decomposed Intrinsic Mode Functions (IMFs), and different forecasting methods are employed accordingly, the point predictions were obtained by linearly summing the component predictions.Additionally, an improved sparrow search algorithm (ISSA) is used to seek the optimal hyperparameters of the prediction algorithm. Finally, the prediction intervals are constructed using the point prediction results based on kernel density estimation (KDE). The root mean square errors (RMSE) of deterministic predictions are 2.8458 MW and 1.8605 MW, with uncertainty coverage rates of 95.83% and 97.92% at a 95% confidence level.
  • The intermodal transport tactical planning: A literature review on the use of transportation modes for cargo delivery Engineering Sciences

    VIEIRA, JONATHAN; NEUENFELDT JÚNIOR, ALVARO; ALVES, VANESSA; BOUZON, MARINA; FRANCESCATTO, MATHEUS

    Resumo em Inglês:

    Abstract Effective freight transportation planning through different modes drives countries economic growth by ensuring the delivery of goods safely and sustainably. This article provides a systematic literature review focused on intermodal transport tactical planning, addressing logistical technical factors for efficient transportation modes management in cargo delivery. The methodology is based on the research questions definition, search process, and article selection criteria, exploring the network structures evolution to verify technical factors influencing network structures, including mode combinations, geographical distribution, and mathematical models’ decision variables and constraints. According to the research question proposed, the most relevant technical factors for intermodal planning network structures are flow cargo, transport modal activation, flow conservation, delivery time, and vehicle management, generally found in countries with extensive road infrastructure and a high modal integration capacity, as China, Europe, and USA. Considering the decision variables and constraints, flow conservation is a common element observed in intermodal transport mathematical models. Thus, a balance between transportation costs and transportation modes utilization was verified, and insights into the relation between technical logistics factors application and network structures for cargo delivery efficiency were revealed. Finally, the systematic literature review contributes to understanding the main intermodal transportation planning evolving landscape, offering valuable insights for future research and practical implementations.
  • Innovation in Brazil: Universities, Embraer and Petrobras Social Sciences

    MCMANUS, CONCEPTA; NEVES, ABILIO A. BAETA; AUDY, JORGE NICOLAS; PRATA, ALVARO T.

    Resumo em Inglês:

    Abstract Innovation affects a nation’s sovereignty. In this paper, we look at Science and Technology indicators as proxies for Innovation using databases such as WIPO, INPI, Sucupira and Scival, and including patents registered, academic-corporate collaborations, patents citing Brazilian articles (Number of patents and documents) and technical production in Brazilian higher education institutions. We also look at two major previously state-owned companies (Embraer and Petrobras) to see their patenting and citation behaviour compared to other companies worldwide. Brazilian science is a citation basis for patenting in companies and universities worldwide, but Brazil does not use its own publications to support patent proposals. While USP is the major cited university, Unicamp has more patents. Academic-corporate collaboration exists between Brazilian and foreign universities, especially in the US and Europe. The Brazilian companies show low patenting behaviour, but Embraer has a higher impact than Petrobras. As a consequence of the dynamics of science and technology, we suggest that the analyses of the innovation processes could focus on the generation of startups and, in particular, academic spin-offs.
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