ANALYSIS OF INDICATORS AND COST OF WORLD CLASS MAINTENANCE (WCM) IN FOREST MACHINES

The study was carried out at a forest company located in the Paraná State, Brazil, with the feller buncher, skidder and harvester. The following indicators were evaluated: mechanical availability, mean time between failures, mean time to repair, proactive maintenance index and maintenance costs, based on data obtained over a period of 18 months, contemplating the stages of implantation, maturation and stabilization of the WCM. The results showed an increase in the mechanical availability of the cutting and skidding machines from the implantation stage. The mean time between failures increased from the implantation stage, from 31.59 hours to 37.01 hours in the stabilization stage. As for the mean time to repairs, skidder and harvester presented an increase of 25.9% and 18.9% respectively; however, this increase in time represented an improvement in the quality of maintenance services, reflected in the results of mean time between failures. There was also a 31% increase in the proactive index of the machines studied, resulting in 9% reduction in maintenance costs between the deployment and stabilization stages

Silicon In the Growth of Rice Seedlings Pretreated with Dietholate and Subjected to Cold Stress

Silicon (Si) is an enzyme stimulator that can promote signaling for the production of antioxidant compounds, important in cellular detoxification of excess ROS accumulated during stress. The aim of the study was to evaluate the effects of Si on post-germination rice seeds in the mitigation of cold stress combined with stress induced by seed treatment with the dietholate protector. The experimental design was fully randomized with three replicates and a 3x2x2x4x2 factorial arrangement: three temperatures (5, 10 and 20 °C), two cultivars (IRGA 424 RI and Guri INTA CL), two seed pretreatments (with and without dietholate), four rates of Si (0; 4.0; 8.0 and 16 mg.L-1) and two sources of Si (sodium and potassium metasilicate). Seed pretreatment with dietholate reduced shoot and radicle length, especially at the lower temperatures of 5 and 10 °C. Sodium metasilicate as the source of Si was more efficient in boosting shoot and radicle length, both with and without pretreatment, regardless of temperature. Si was found to attenuate low-temperature stress and the impairment of shoot and radicle growth in rice seedlings grown from seeds pretreated with dietholate

SISTEMAS DE GESTÃO AMBIENTAL NA CONSTRUÇÃO CIVIL

As questões ambientais têm sido cada vez mais discutidas nas empresas, os mercados atuais tem demandado uma crescente procura por sistemas e produtos que seguem um critério de sustentabilidade. O desenvolvimento e utilização de sistemas que proporcionem uma real racionalização dos recursos naturais são fundamentais para se alcançar a harmonia entre homem e meio ambiente. A engenharia civil tem causado grande impacto ambiental sendo a causadora de grandes modificações no meio ambiente e mesmo com a adoção de procedimentos que visam minimizar os efeitos nocivos. A adoção de uma política de gestão ambiental pelas empresas de construção civil constitui, na atualidade, uma forma de aplicar critérios gerais para melhoria no rendimento ambiental, ou seja, desenvolver um sistema para preservar o meio ambiente, a fim de satisfazer as necessidades da organização, dos clientes e cumprir as normas legais.   Palavras-chave: Transporte rodoviário de passageiros. Malha rodoviária fluminense. Rio de Janeiro. Veículo leve sobre trilhos

Range of Motion of military personnel submitted to 12 weeks of stretching at different intensities

Objetivou-se investigar os efeitos de 12 semanas de treinamento da flexibilidade com diferentes intensidades na amplitude de movimento (ADM), para a flexão e extensão horizontal de ombro (FHO e EHO) e flexão da coluna lombar (FCL), em militares. Foram avaliados 90 alunos (17,02 ± 1,24 anos) e divididos aleatoriamente em três grupos, com 30 participantes cada: alongamento (GA), facilitação neuromuscular proprioceptiva (GFNP) e controle (GC). A amplitude articular foi verificada mediante a goniometria através do Protocolo LABIFIE e, para tal, utilizou o goniômetro de aço 360º “Lafayette Goniometer Set” – EUA, como instrumento de mensuração. Utilizou-se a Escala de Esforço Percebido na Flexibilidade – PERFLEX (0 – 110) para controlar a intensidade durante o GA (31- 60) por um período de 5 segundos, e GFNP (61 e 80) por 8 segundos de insistência para cada fase. Foram realizadas 3 séries com intervalo de cinco segundos entre as mesmas. A análise comparativa dos níveis de amplitude articular definida pela Análise de Variância (Anova one way) em combinação ao teste Post Hoc de Turkey, apontou diferenças apenas no GFNP: FHO (∆%=4,6; p=0,001); EHO (%∆=8,6; p=0,002); FCL, (∆%=56,1; p=0,001). Concluiu-se que o treinamento através da FNP alcançou maiores índices de desenvolvimento da ADM, quando comparado ao alongamento.The aim of this study was to investigate the effects of a 12-week flexibility training at different intensities on range of motion (ROM), horizontal shoulder flexion and extension (HSF and HSE) and lumber spine flexion (LSF) in military personnel. The sample consisted of 90 students (17.02 ± 1.24 years) randomly allocated into three groups of 30 participants each: stretching (SG) proprioceptive neuromuscular facilitation (PNFG) and control (CG). Joint range was measured by goniometry using the LABIFIE protocol and the Lafayette Goniometer Set (360º)– USA as measuring instrument. The scale of perceived exertion in flexibility – PERFLEX (0 – 110) was applied to control intensity in the SG (31- 60) for 5 seconds and the PNFG (61 and 80) for 8 seconds for each phase. Three series, five seconds apart, were conducted. Comparative analysis of joint range levels determined by analysis of variance (one-way ANOVA) and Tukey’s post-hoc test revealed differences only in PNFG: HSF (∆%=4.6; p=0.001); HSE (%∆=8.6; p=0.002); LSF (∆%=56.1; p=0.001). It was concluded that PNF training achieved higher ROM when compared to stretching.Facultad de Humanidades y Ciencias de la Educació

Evaluation of two-step transformation in Ni-rich titanium-nickel alloys using thermal and internal friction analyses

The use of Ti-Ni memory alloys covers several fields of application such as medicine, dentistry, actuators,sensors among others. Because of the thermomechanical behavior of these materials, they are an object ofcontinuous studies and their properties are related to the occurrence of thermoelastic martensitic phase transformations.The thermal analyzes were performed using dilatometry and differential scanning calorimetry todetermine the temperatures that occurred transformations during the cooling and heating, as well as to evaluatethe influence of the thermal treatments performed by dilatometry. The thermomechanical behavior wasalso evaluated by the internal friction that measured behavior damping considering the structural and microstructuralchanges. The calorimetry measurements indicated suppression of the R phase through decompositionof precipitates of Ti3N4after the thermal treatments, that were corroborated by dilatometry and microhardness.This phase was also studied by the technique of internal friction, which showed that the mechanicaldamping coefficient increased as a function of temperature, due to the movement of the defects induced bytension.Keywords: Ti-Ni, shape-memory effect, internal friction, dilatometry, calorimetry

Diagnóstico e tratamento do trauma hepático: revisão de literatura : Diagnostic and treatment of hepatic trauma: a systematic review of literature

O fígado é um dos órgãos mais afetados no trauma abdominal fechado ou penetrante. Atualmente, observa-se uma valorização do tratamento não operatório nesses casos, principalmente devido ao desenvolvimento das técnicas de diagnóstico. Contudo, alguns casos ainda necessitam da abordagem cirúrgica. O trauma hepático corresponde a aproximadamente 5% das admissões das salas de urgência, acometendo principalmente homens e jovens. Na investigação do paciente, o exame físico pode não ser claro ou confiável na admissão, sendo o Ultrassom na beira do leito, a Tomografia Computadorizada e o Lavado Peritoneal Diagnóstico, os diagnósticos mais confiáveis de acordo com as indicações e disponibilidade. O Tratamento Não Operatório (TNO) é o de escolha, caso requisitos sejam preenchidos, mas o operatório ainda é necessário e tem evoluído gradualmente em suas técnicas. Portanto, É necessária uma avaliação individual do paciente lesionado para a decisão entre o tratamento conservador ou cirúrgico. Contudo, sabe-se da importância das técnicas de imagem na evolução do TNO

Phytochemical Composition, Antifungal and Antioxidant Activity of Duguetia furfuracea

Background. Duguetia furfuracea is popular plant used in popular medicine. Hypothesis/Purpose. This claim evaluated the phytochemical composition of the hydroethanolic extract (HEDF), fractions of Duguetia furfuracea, and antioxidant and antifungal activity. Methods. The chemical profile was carried out by HPLC-DAD. The total phenolic contents and flavonoid components were determined by Folin-Ciocalteu and aluminium chloride reaction. The antioxidant activity was measured by scavenging of 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical and ferric reducing ability of plasma (FRAP) methods. The antifungal activity was determined by microdilution assay. Results. HPLC analysis revealed caffeic acid and rutin as major compounds (HEDF), caffeic acid and quercitrin (Mt-OH fraction), and quercitrin and isoquercitrin (Ac-OEt fraction). The highest levels of phenols and total flavonoids were found for Ac-OEt fraction, and the crude extract showed higher in vitro antioxidant potential. The antifungal activity showed synergic effect with fluconazole and EHDF against C. krusei, fluconazole and Mt-OH against C. krusei and C. tropicalis, and Ac-OE and fluconazole against C. albicans. Conclusion. The highest levels of phenols and total flavonoids were marked with antioxidant effect. This is the first report of bioactivity of the synergic effect of HEDF and fractions. More studies would be required to better clarify its mechanism of synergic action

Predicting the Proteins of Angomonas deanei, Strigomonas culicis and Their Respective Endosymbionts Reveals New Aspects of the Trypanosomatidae Family

Endosymbiont-bearing trypanosomatids have been considered excellent models for the study of cell evolution because the host protozoan co-evolves with an intracellular bacterium in a mutualistic relationship. Such protozoa inhabit a single invertebrate host during their entire life cycle and exhibit special characteristics that group them in a particular phylogenetic cluster of the Trypanosomatidae family, thus classified as monoxenics. in an effort to better understand such symbiotic association, we used DNA pyrosequencing and a reference-guided assembly to generate reads that predicted 16,960 and 12,162 open reading frames (ORFs) in two symbiont-bearing trypanosomatids, Angomonas deanei (previously named as Crithidia deanei) and Strigomonas culicis (first known as Blastocrithidia culicis), respectively. Identification of each ORF was based primarily on TriTrypDB using tblastn, and each ORF was confirmed by employing getorf from EMBOSS and Newbler 2.6 when necessary. the monoxenic organisms revealed conserved housekeeping functions when compared to other trypanosomatids, especially compared with Leishmania major. However, major differences were found in ORFs corresponding to the cytoskeleton, the kinetoplast, and the paraflagellar structure. the monoxenic organisms also contain a large number of genes for cytosolic calpain-like and surface gp63 metalloproteases and a reduced number of compartmentalized cysteine proteases in comparison to other TriTryp organisms, reflecting adaptations to the presence of the symbiont. the assembled bacterial endosymbiont sequences exhibit a high A+T content with a total of 787 and 769 ORFs for the Angomonas deanei and Strigomonas culicis endosymbionts, respectively, and indicate that these organisms hold a common ancestor related to the Alcaligenaceae family. Importantly, both symbionts contain enzymes that complement essential host cell biosynthetic pathways, such as those for amino acid, lipid and purine/pyrimidine metabolism. These findings increase our understanding of the intricate symbiotic relationship between the bacterium and the trypanosomatid host and provide clues to better understand eukaryotic cell evolution.Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)ERC AdG SISYPHEUniv Fed Rio de Janeiro, Inst Biofis Carlos Chagas Filho, Lab Ultraestrutura Celular Hertha Meyer, BR-21941 Rio de Janeiro, BrazilUniv Fed Rio de Janeiro, Inst Biofis Carlos Chagas Filho, Lab Metab Macromol Firmino Torres de Castro, BR-21941 Rio de Janeiro, BrazilLab Bioinformat, Lab Nacl Computacao Cient, Rio de Janeiro, BrazilINRIA Grenoble Rhone Alpes, BAMBOO Team, Villeurbanne, FranceUniv Lyon 1, CNRS, UMR5558, Lab Biometrie & Biol Evolut, F-69622 Villeurbanne, FranceUniv Estadual Campinas, Inst Biol, Dept Genet Evolucao & Bioagentes, São Paulo, BrazilUniv São Paulo, Fac Ciencias Farmaceut Ribeirao Preto, Dept Ciencias Farmaceut, São Paulo, BrazilLab Nacl Ciencia & Tecnol Bioetano, São Paulo, BrazilUniv Fed Minas Gerais, Inst Ciencias Biol, Dept Bioquim & Imunol, Belo Horizonte, MG, BrazilUniv Fed Goias, Inst Ciencias Biol, Mol Biol Lab, Goiania, Go, BrazilFundacao Oswaldo Cruz, Inst Carlos Chagas, Lab Biol Mol Tripanossomatideos, Curitiba, Parana, BrazilFundacao Oswaldo Cruz, Inst Carlos Chagas, Lab Genom Func, Curitiba, Parana, BrazilUniv Estadual Campinas, Ctr Pluridisciplinar Pesquisas Quim Biol & Agr, São Paulo, BrazilUniv Fed Minas Gerais, Inst Ciencias Biol, Dept Parasitol, Belo Horizonte, MG, BrazilUniv Fed Santa Catarina, Dept Microbiol Imunol & Parasitol, Ctr Ciencias Biol, Lab Protozool & Bioinformat, Florianopolis, SC, BrazilUniv Fed Vicosa, Dept Bioquim & Biol Mol, Ctr Ciencias Biol & Saude, Vicosa, MG, BrazilInst Butantan, Lab Especial Ciclo Celular, São Paulo, BrazilUniv São Paulo, Dept Biol, Fac Filosofia Ciencias & Letras Ribeirao Preto, São Paulo, BrazilUniversidade Federal de São Paulo, Escola Paulista Med, Dept Microbiol Imunol & Parasitol, São Paulo, BrazilUniversidade Federal de São Paulo, Escola Paulista Med, Dept Microbiol Imunol & Parasitol, São Paulo, BrazilWeb of Scienc

Hexapoda Yearbook (Arthropoda: Mandibulata: Pancrustacea) Brazil 2020: the first annual production survey of new Brazilian species

This paper provided a list of all new Brazilian Hexapoda species described in 2020. Furthermore, based on the information extracted by this list, we tackled additional questions regarding the taxa, the specialists involved in the species descriptions as well as the journals in which those papers have been published. We recorded a total of 680 new Brazilian species of Hexapoda described in 2020, classified in 245 genera, 112 families and 18 orders. These 680 species were published in a total of 219 articles comprising 423 different authors residing in 27 countries. Only 30% of these authors are women, which demonstrates an inequality regarding sexes. In relation to the number of authors by species, the majority of the new species had two authors and the maximum of authors by species was five. We also found inequalities in the production of described species regarding the regions of Brazil, with Southeast and South leading. The top 10 institutions regarding productions of new species have four in the Southeast, two at South and with one ate North Region being the outlier of this pattern. Out of the total 219 published articles, Zootaxa dominated with 322 described species in 95 articles. The average impact factor was of 1.4 with only seven articles being published in Impact Factors above 3, indicating a hardship on publishing taxonomic articles in high-impact journals.The highlight of this paper is that it is unprecedent, as no annual record of Hexapoda species described was ever made in previous years to Brazil.Fil: Silva Neto, Alberto Moreira. Ministério da Ciência, Tecnologia, Inovações. Instituto Nacional de Pesquisas da Amazônia; BrasilFil: Lopes Falaschi, Rafaela. Universidade Estadual do Ponta Grossa; BrasilFil: Zacca, Thamara. Universidade Federal Do Rio de Janeiro. Museu Nacional; BrasilFil: Hipólito, Juliana. Universidade Federal da Bahia; BrasilFil: Costa Lima Pequeno, Pedro Aurélio. Universidade Federal de Roraima; BrasilFil: Alves Oliveira, João Rafael. Ministério da Ciência, Tecnologia, Inovações. Instituto Nacional de Pesquisas da Amazônia; BrasilFil: Oliveira Dos Santos, Roberto. Ministério da Ciência, Tecnologia, Inovações. Instituto Nacional de Pesquisas da Amazônia; BrasilFil: Heleodoro, Raphael Aquino. Ministério da Ciência, Tecnologia, Inovações. Instituto Nacional de Pesquisas da Amazônia; BrasilFil: Jacobina, Adaiane Catarina Marcondes. Universidade Federal do Paraná; BrasilFil: Somavilla, Alexandre. Ministério da Ciência, Tecnologia, Inovações. Instituto Nacional de Pesquisas da Amazônia; BrasilFil: Camargo, Alexssandro. Ministério da Ciência, Tecnologia, Inovações. Instituto Nacional de Pesquisas da Amazônia; BrasilFil: de Oliveira Lira, Aline. Universidad Federal Rural Pernambuco; BrasilFil: Sampaio, Aline Amanda. Ministério da Ciência, Tecnologia, Inovações. Instituto Nacional de Pesquisas da Amazônia; BrasilFil: da Silva Ferreira, André. Universidad Federal Rural Pernambuco; BrasilFil: Martins, André Luis. Universidade Federal do Paraná; BrasilFil: Figueiredo de Oliveira, Andressa. Universidade Federal do Mato Grosso do Sul; BrasilFil: Gonçalves da Silva Wengrat , Ana Paula. Universidade do Sao Paulo. Escola Superior de Agricultura Luiz de Queiroz; BrasilFil: Batista Rosa, Augusto Henrique. Universidade Estadual de Campinas; BrasilFil: Dias Corrêa, Caio Cezar. Universidade Federal Do Rio de Janeiro. Museu Nacional; BrasilFil: Costa De-Souza, Caroline. Museu Paraense Emilio Goeldi; BrasilFil: Anjos Dos Santos, Danielle. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagónica. Universidad Nacional de la Patagonia "San Juan Bosco". Centro de Investigación Esquel de Montaña y Estepa Patagónica; ArgentinaFil: Pacheco Cordeiro, Danilo. Instituto Nacional Da Mata Atlantica; BrasilFil: Silva Nogueira, David. Ministério da Ciência, Tecnologia, Inovações. Instituto Nacional de Pesquisas da Amazônia; BrasilFil: Almeida Marques, Dayse Willkenia. Ministério da Ciência, Tecnologia, Inovações. Instituto Nacional de Pesquisas da Amazônia; BrasilFil: Nunes Barbosa, Diego. Universidade Federal do Paraná; BrasilFil: Mello Mendes, Diego Matheus. Instituto de Desenvolvimento Sustentável Mamirauá; BrasilFil: Galvão de Pádua, Diego. Ministério da Ciência, Tecnologia, Inovações. Instituto Nacional de Pesquisas da Amazônia; BrasilFil: Silva Vilela, Diogo. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Gomes Viegas, Eduarda Fernanda. Ministério da Ciência, Tecnologia, Inovações. Instituto Nacional de Pesquisas da Amazônia; BrasilFil: Carneiro dos Santos, Eduardo. Universidade Federal do Paraná; BrasilFil: Rodrigues Fernandes, Daniell Rodrigo. Ministério da Ciência, Tecnologia, Inovações. Instituto Nacional de Pesquisas da Amazônia; Brasi