The species Oryza sativa (rice) and Musa cavendishii (banana) are sources of cellulose-rich waste biomass in the Amazon region, Tocantins State. This research investigates the nanoscale production of cellulose through the interactions between three choline amino acid ionic liquids Ch[AA]IL and the respective fibers by pretreatment. To this end, the synthesis of three ILs was carried out: choline arginate Ch[Arg], choline glycinate Ch[Gly] and choline lysinate Ch[Lys], characterized by Fourier transform infrared spectroscopy (FTIR). The samples resulting from the pretreatment were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and thermogravimetric analysis (TGA). It was possible to infer from the SEM micrographs that Ch[Arg] caused greater fiber breakage than the other ILs. The TEM analyses identified fibers up to 16 nm in diameter. Positive effects were observed in the diffractograms, although no crystallinity was obtained in the pretreated samples. Thermogravimetry curves showed that the fibers treated with Ch[Arg] showed higher thermal stability. rice (rice banana (banana celluloserich rich region State ChAAIL Ch AA IL end out ChArg, ChArg Arg , ChGly Gly Ch[Gly ChLys, ChLys Lys Ch[Lys] FTIR. FTIR . (FTIR) SEM, (SEM) TEM, (TEM) Xray X ray XRD (XRD TGA. TGA (TGA) Ch[Arg 1 diameter diffractograms stability Ch[Lys (FTIR (SEM (TEM (TGA

Chemometrics is gaining more and more space in universities and industry. To contribute to the development and expansion of principal component analysis (PCA) teaching proposals, this work evaluated the answers of the students to a questionnaire and presented a didactic-pedagogical proposal that can contribute to solving the principal doubts achieved by students in the PCA interpretation. Based on data collected in a semi-open questionnaire, the proposal was developed based on methodological principles of historical-critical pedagogy, containing the objectives, the problems surrounding the topic, and the cultural instruments necessary for understanding and interpreting PCA in the discipline of chemometrics by using new resources and instruments, especially free software, Chemostat. This proposal covers topics related to the concept of chemometrics and PCA, the explanation of the data set, pre-processing, use of Chemostat software, and analysis of principal components. It is hoped that this proposal can promote a better understanding concerning PCA on the part of students, as well as effective incorporation of the phenomena that involve this tool and its applications, and interpretation. Likewise, it is expected that this didactic-pedagogical proposal can support new teaching practices in chemometrics subjects in higher education. industry (PCA proposals didacticpedagogical didactic pedagogical interpretation semiopen semi open historicalcritical historical critical pedagogy objectives topic software set preprocessing, preprocessing pre processing, processing pre-processing components applications Likewise education

The present work aims to extract and test cashew nut peel oil as a natural antioxidant in the oxidative stabilization of biodiesel. Therefore, determinations of the ideal time of Soxhlet and thermal extractions, Fourier transform infrared spectroscopy (FTIR) analyses, and evaluation of the oxidative stability by Rancimat method were carried out. FTIR analyses revealed that the 3rd cycle of extraction was sufficient to extract all the oil, with an average yield of 30.0%. For the thermal extraction of the laboratory technical cashew nut peel oil, the best extraction, based on statistical analysis, was 60 min, yielding 20.0%. The FTIR analysis of the extracted cashew nut peel oil showed characteristic peaks of phenolic groups and organic acids, showing differences in the intensities of the absorption bands. The oxidative stability showed induction period of 8 h 40 min for the hydraulic press extraction, 10 h 35 min for the Soxhlet extraction, and 10 h 65 min for the industrial technical extraction of the cashew nut peel oil. All values were below the 12-h limit established by the National Agency for Petroleum, Natural Gas and Biofuels (ANP). The technical cashew nut peel oil extracted in the laboratory presented an induction period of 11 h 12 min, close to that recommended by ANP, proving to be a promising natural antioxidant. Cardanol presented satisfactory results with 25 h 22 min, double that suggested by ANP. Thus, cashew nut peel oil showed important and promising results as a natural antioxidant for biodiesel. biodiesel Therefore extractions (FTIR out rd 300 30 0 30.0% 6 200 20 20.0% acids bands 4 1 3 12h Petroleum ANP . (ANP) 2 Thus 30.0 20.0 (ANP 30. 20.

RESUMO A estruvita (NH4MgPO4∙6H2O) é um fertilizante de liberação lenta obtido através da recuperação de fósforo e/ou nitrogênio de águas residuais geralmente pela adição de sais de magnésio. Neste sentido, objetivou-se avaliar a viabilidade da substituição de fontes comerciais de magnésio por fontes alternativas no processo de precipitação de estruvita, em termos de remoção de amônio e fosfato, e quantificação e caracterização do cristal precipitado. Os experimentos foram conduzidos em escala de bancada sob delineamento inteiramente casualizado a pH 9,5 através da precipitação de uma solução de efluente sintético com quatro diferentes fontes de magnésio: MgCl2∙6H2O, MgSO4∙7H2O, MgO e magnesita (MgCO3). Após pré-acidificação, soluções derivadas de fontes alternativas de baixo custo de magnésio removeram acima de 55 e 90% de nitrogênio amoniacal e fosfato em solução, respectivamente, e alcançaram por volta de 10 g L-1 de cristais precipitados. A proximidade dos resultados obtidos com soluções derivadas de fontes comerciais de magnésio (46ꟷ56% de remoção de nitrogênio amoniacal, 97% de remoção de fosfato, e mais de 6 g L-1 de precipitado formado) indicou que reagentes alternativos puderam facilmente substituir os comerciais se submetidos ao prévio processo de digestão, a fim de tornar o magnésio disponível em solução. A análise qualitativa por difratometria de raios-X confirmou a presença de estruvita e newberyita na maioria dos precipitados. NH4MgPO4∙6H2O NH4MgPO46H2O NHMgPOHO NH4MgPO4 6H2O NH MgPO H O (NH4MgPO4∙6H2O eou ou sentido objetivouse objetivou 95 9 5 9, MgCl26H2O MgClHO MgCl2 MgCl MgCl2∙6H2O MgSO47H2O MgSOHO MgSO4 7H2O MgSO MgSO4∙7H2O MgCO3. MgCO3 MgCO . (MgCO3) préacidificação, préacidificação pré acidificação, acidificação pré-acidificação 90 respectivamente 1 L1 L L- precipitados 46ꟷ56% 46ꟷ56 ꟷ (46ꟷ56 97 formado digestão raiosX raios X NHMgPO NH4MgPO HO (MgCO3 46ꟷ5 (46ꟷ5 (MgCO 46ꟷ (46ꟷ

ABSTRACT Struvite (NH4MgPO4∙6H2O) is a slow-release fertilizer obtained through phosphorus and/or nitrogen recovery from wastewaters, usually by adding magnesium salts. In this sense, the aim was to evaluate the viability of replacing commercial magnesium sources with alternative ones in the struvite precipitation process regarding ammonium and phosphate removal and precipitated crystal quantification and characterization. Experiments were conducted on a bench scale in a completely randomized design at pH 9.5 by precipitation of synthetic wastewater solution with four magnesium sources: MgCl2∙6H2O, MgSO4∙7H2O, MgO, and magnesite (MgCO3). After pre-acidification, derived solutions from low-cost alternative sources of magnesium removed above 55 and 90% of ammonium nitrogen and phosphate in solution, respectively, and reached around 10 g L-1 of precipitated crystals. Results proximity obtained with solutions derived from commercial sources of magnesium (46ꟷ56% of ammonium nitrogen removal, 97% of phosphate removal, and more than 6 g L-1 of precipitate formed) indicated that alternative reagents could easily substitute commercial ones if submitted to the previous digestion process, making magnesium available in solution. Qualitative analysis by X-ray diffraction confirmed the presence of both struvite and newberyite in most precipitates. NH4MgPO4∙6H2O NH4MgPO46H2O NHMgPOHO NH4MgPO4 6H2O NH MgPO H O (NH4MgPO4∙6H2O slowrelease slow release andor or wastewaters salts sense characterization 95 9 5 9. MgCl26H2O MgClHO MgCl2 MgCl MgCl2∙6H2O MgSO47H2O MgSOHO MgSO4 7H2O MgSO MgSO4∙7H2O MgO MgCO3. MgCO3 MgCO . (MgCO3) preacidification, preacidification pre acidification, acidification pre-acidification lowcost low cost 90 respectively 1 L1 L L- crystals 46ꟷ56% 46ꟷ56 ꟷ (46ꟷ56 97 formed Xray X ray precipitates NHMgPO NH4MgPO HO (MgCO3 46ꟷ5 (46ꟷ5 (MgCO 46ꟷ (46ꟷ

RESUMO A introdução da soja tolerante a 2,4-D (ENLIST®) oferece um novo potencial para a aplicação de herbicidas. Dessa forma, o presente trabalho teve como objetivo: (a) avaliar o efeito das combinações de herbicidas pós-emergentes no controle de Conyza spp., e (b) a seletividade da associação de herbicidas pós-emergentes em soja, garantindo uma aplicação eficaz sem comprometer a saúde da cultura. Um experimento de campo com soja tolerante ao 2,4-D utilizou um delineamento experimental de blocos casualizados, com 14 tratamentos em quatro repetições. Os tratamentos incluíram várias combinações de 2,4-D com glifosato, chlorimuron, cloransulam, imazethapyr, bentazona e imazamox. Estes foram aplicados como um único tratamento ou sequencialmente 15 dias após o tratamento (DAT) usando glufosinato de amônio, juntamente com dois controles sem aplicação de herbicida. Os resultados mostraram menos de 15% de fitotoxicidade em todos os tratamentos. Aos 21 DAT, apenas os tratamentos aplicados sequencialmente mostraram controle significativo, com eficácia superior a 80% contra Conyza spp. Em contraste, as aplicações únicas das combinações de herbicidas com 2,4-D foram ineficazes para o controle pós-emergência de Conyza spp. 2,4D 24D D 2,4 2 4 ENLIST® ENLIST (ENLIST® forma objetivo (a pósemergentes pós emergentes spp b (b cultura casualizados 1 repetições glifosato chlorimuron cloransulam imazethapyr imazamox DAT (DAT amônio herbicida significativo 80 contraste pósemergência emergência 4D 24 2, (ENLIST 8

ABSTRACT The introduction of 2,4-D-tolerant soybeans (ENLIST®) offers a new potential for herbicide application. Therefore, the present study aimed to (a) evaluate the effect of combinations of post-emergent herbicides on the control of Conyza spp. and (b) assess the selectivity of the post-emergent herbicide association in soybeans, ensuring effective application without compromising the health of the crop. A field experiment with 2,4-D-tolerant soybeans utilized a randomized complete block design with 14 treatments across four replications. Treatments included various combinations of 2,4-D with glyphosate, chlorimuron-ethyl, cloransulam-methyl, imazethapyr, bentazon, and imazamox. These were applied either as a single treatment or sequentially 15 days after treatment (DAT) using glufosinate-ammonium alongside two controls without herbicide application. The results showed less than 15% control across all treatments. At 21 DAT, only the treatments applied sequentially showed significant control, with effectiveness exceeding 80% against Conyza spp. In contrast, the single applications of the herbicide combinations with 2,4-D were ineffective for post-emergence control of Conyza spp. 2,4Dtolerant 24Dtolerant Dtolerant 2,4 D tolerant 2 4 ENLIST® ENLIST (ENLIST® Therefore (a postemergent post emergent spp b (b crop 1 replications 2,4D 24D glyphosate chlorimuronethyl, chlorimuronethyl chlorimuron ethyl, ethyl chlorimuron-ethyl cloransulammethyl, cloransulammethyl cloransulam methyl, methyl cloransulam-methyl imazethapyr bentazon imazamox DAT (DAT glufosinateammonium glufosinate ammonium 80 contrast postemergence emergence 4Dtolerant 24 2, (ENLIST 4D 8

Lisdexamfetamine is a prodrug that is converted to d-amphetamine in the body, mainly used to treat attention deficit hyperactivity disorder in children and adults. Its mechanism involves the enhancement of neurotransmitters such as norepinephrine and dopamine, which are critical for attention and behavioral regulation. With the upcoming patent expiration of Vyvanse®, bioanalytical methods for the quantification of lisdexamfetamine in plasma are needed for use in pharmacokinetic studies. In this work, we developed and validated a sensitive bioanalytical method using liquid chromatography-tandem mass spectrometry (LC-MS/MS) for lisdexamfetamine quantification in human plasma. The method developed was performed for 4 min per sample and using the concentration range of 0.3-100 ng mL-1. Intra-batch, inter-batch and instrument reproducibility, the precision was lower than 10%. The results demonstrated that the method is rapid, sensitive, robust, and suitable for pharmacokinetic studies. damphetamine d amphetamine body adults dopamine regulation Vyvanse Vyvanse® studies work chromatographytandem chromatography tandem LCMS/MS LCMSMS LC MS/MS MS (LC-MS/MS 0.3100 03100 0.3 100 0 3 0.3-10 mL1. mL1 mL 1. 1 mL-1 Intrabatch, Intrabatch Intra batch, batch Intra-batch interbatch inter reproducibility 10 10% rapid robust LCMS MSMS 3100 0.310 0310 03 0. 0.3-1 mL- 310 0.31 031 0.3- 31

Exploring the triacylglycerols composition in milk samples from different ruminant species is crucial for dairy product development. Identifying the fatty acid (FA) composition in human milk is essential and is usually performed using gas chromatography (GC). Heat maps are useful for visualizing these results, aiding in pattern identification and relationships between samples and variables. Additionally, nuclear magnetic resonance (NMR) spectroscopy provides important qualitative and quantitative information about fatty acids (FA). In the present study, we compare the fatty acid composition in samples of HM, cow milk, and goat milk, as well as to demonstrate their positional distribution in triacylglycerols (TAGs). Human milk contains 49.21% saturated fatty acids (SFAs), 34.32% monounsaturated fatty acids (MUFA), and 16.47% polyunsaturated fatty acids (PUFA), including 2.14% docosahexaenoic acid (DHA) and 13.02% linoleic acid (LA). On the other hand, cow and goat milk have higher proportions of SFAs (56.2 and 58.02%, respectively) and MUFAs (40.56 and 40.95%, respectively), but lower amounts of PUFAs (3.24 and 1.03%, respectively), with significantly lower quantities of DHA (0.03 and 0.43%, respectively) and LA (1.46 and 2.76%, respectively). Additionally, fatty acids in ruminant milk mainly consist of long-chain fatty acids (LCFAs), with oleic acid being the most abundant. development FA (FA GC. GC . (GC) results variables Additionally NMR (NMR FA. study HM TAGs. TAGs (TAGs) 4921 49 21 49.21 SFAs, , (SFAs) 3432 34 32 34.32 MUFA, MUFA (MUFA) 1647 16 47 16.47 PUFA, PUFA (PUFA) 214 2 14 2.14 (DHA 1302 13 02 13.02 LA. (LA) hand 56.2 562 56 (56. 5802 58 58.02% respectively 40.56 4056 40 (40.5 4095 95 40.95% respectively, 3.24 324 3 24 (3.2 103 1 03 1.03% 0.03 003 0 (0.0 043 43 0.43% 1.46 146 46 (1.4 276 76 2.76% respectively. longchain long chain LCFAs, LCFAs (LCFAs) abundant (GC (TAGs 492 4 49.2 (SFAs 343 34.3 (MUFA 164 16.4 (PUFA 2.1 130 13.0 (LA 56. 5 (56 580 58.02 40.5 405 (40. 409 9 40.95 3.2 (3. 10 1.03 0.0 00 (0. 04 0.43 1.4 (1. 27 7 2.76 (LCFAs 49. 34. 16. 2. 13. (5 58.0 40. (40 40.9 3. (3 1.0 0. (0 0.4 1. (1 2.7 ( 58. (4

Abstract This study aimed to estimate CO2 emission and uptake due to the mixed rendering mortars carbonation process, replacing natural aggregate (NA) with recycled aggregate (RA) and lime contents to produce less emissive final material. Mortars were subjected to natural carbonation in three environments. Carbonation depth was evaluated until 119 days of CO2 environmental exposure, and thermogravimetric analysis determined absorbed carbon content. The scenario evaluation considered different depths for the potential CO2 uptake. It was found that the higher the lime content, the higher the carbon emissions and capture. However, the CO2 captured amount (25.41 KgCO2/m³) does not balance its emission from raw materials production. Replacing NA for RA, the mortars reduced emissions associated with production by approximately 8.15%. The scenario simulation proved that constructive control is essential for rendering mortar depths less than 20 mm, the maximum carbon fixation is reached before rendering. Mortars with recycled aggregate are less emissive, which is essential in selecting more sustainable building materials. CO process (NA RA (RA material environments 11 exposure content capture However 25.41 2541 25 41 (25.4 KgCO2/m³ KgCO2m³ KgCOm KgCO2 m³ KgCO m 815 8 15 8.15% 2 mm 1 25.4 254 4 (25. KgCO2/m KgCO2m 81 8.15 25. (25 8.1 (2 8. (

Resumo Este estudo teve como objetivo estimar a emissão e captura de CO2 devido ao processo de carbonatação de argamassas mistas, substituindo agregado natural (AN) por agregado reciclado (AR) e teores de cal para produzir material final menos emissivo. As argamassas foram submetidas à carbonatação natural em três ambientes. A profundidade de carbonatação foi avaliada aos até 119 dias de exposição ao tempo com presença de CO2, e a análise termogravimétrica determinou o teor de carbono absorvido. A avaliação dos cenários considerou diferentes profundidades para o potencial absorção de CO2. Verificou-se que quanto maior o teor de cal, maiores as emissões e captura de carbono. Contudo, a quantidade de CO2 capturada (25,41 KgCO2/m³) não neutraliza a sua emissão proveniente da produção de matérias-primas. Substituindo o AN pelo AR, as argamassas reduziram as emissões associadas à produção, em aproximadamente 8,15%. A simulação dos cenários comprovou que o controle construtivo é essencial, pois em espessuras inferiores a 20 mm a fixação máxima de carbono é alcançada antes da aplicação de revestimento. As argamassas com agregados reciclados são menos emissivas, o que é essencial na seleção de materiais de construção mais sustentáveis. CO mistas (AN AR (AR emissivo ambientes 11 absorvido Verificouse Verificou se Contudo 25,41 2541 25 41 (25,4 KgCO2/m³ KgCO2m³ KgCOm KgCO2 m³ KgCO m matériasprimas. matériasprimas matérias primas. primas matérias-primas 815 8 15 8,15% 2 revestimento emissivas sustentáveis 1 25,4 254 4 (25, KgCO2/m KgCO2m 81 8,15 25, (25 8,1 (2 8, (

ABSTRACT The contribution of plant residues throughout the sugarcane cycles favors the increase of organic matter and the activity of microorganisms in the soil, especially in the surface layers. Soil texture also has an important effect on ecological processes and soil quality. In this context, the objective of this study was to evaluate soil biological attributes in different sugarcane cultivation cycles under mechanized harvesting in an Oxisol in the Savanna region of Central Brazil. The study was conducted in commercial areas under sugarcane cultivation during the 2018/2019 season, which were considered homogeneous in terms of soil and climatic conditions, with the source of variation among the areas being the cultivation cycles (C1: one cultivation cycle; C3: three cultivation cycles; C7: seven cultivation cycles) and a savanna vegetation area selected as a reference. Microbiological variables were determined in two layers, 0-0.1 and 0.1-0.2 m. The variables related to microbial biomass and texture were subjected to principal component analysis. Areas with longer sugarcane cultivation cycles show higher proportion of microbial biomass carbon in the total organic carbon in subsurface layers (microbial quotient). The performance of the soil microbial community, as expressed by total organic carbon and microbial biomass nitrogen indicators, was associated with higher presence of clay and silt, i.e., soil particles smaller than 0.02 mm. quality context Brazil 20182019 2018 2019 2018/201 season conditions C1 C (C1 cycle C3 C7 reference 00.1 001 0 0.1 1 0-0. 0.10.2 0102 0.2 2 0.1-0. m analysis quotient. quotient . quotient) community indicators silt ie i e i.e. 002 02 0.0 mm 2018201 201 2018/20 (C 00 00. 01 0. 0-0 10 0.10. 010 0.1-0 i.e 201820 20 2018/2 0- 0.10 0.1- 20182 2018/

RESUMO O aporte de resíduos vegetais ao longo dos ciclos da cana-de-açúcar favorece o incremento de matéria orgânica e atividade de microrganismos no solo, especialmente nas camadas superficiais. A textura do solo também tem um efeito importante nos processos ecológicos e na qualidade do solo. Nesse sentido, o objetivo desta pesquisa foi avaliar atributos biológicos do solo em diferentes ciclos de cultivo de cana-de-açúcar sob colheita mecanizada, em um Latossolo da região de cerrado do Brasil Central. O estudo foi realizado em áreas comerciais de cultivo de cana-de-açúcar na safra 2018/2019, consideradas homogêneas em termos de condições edafoclimáticas, tendo como fonte de variação entre as áreas os ciclos de cultivo (C1: um ciclo de cultivo; C3: três ciclos de cultivo; C7: sete ciclos de cultivo) e uma área de vegetação de cerrado selecionada como referência. Foram determinadas variáveis microbiológicas nas camadas de 0-0,10 e 0,10-0,20 m. As variáveis relacionados à biomassa microbiana e textura foram submetidos à análise de componentes principais. Áreas com ciclos de cultivo de cana-de-açúcar mais longos apresentaram maior proporção de carbono da biomassa microbiana no carbono orgânico total nas camadas subterrâneas (quociente microbiano). O desempenho da comunidade microbiana do solo, expresso pelos indicadores carbono orgânico total e nitrogênio da biomassa microbiana foi associado à maior presença de argila e silte, ou seja, partículas de solo menores que 0,02 mm. canadeaçúcar cana açúcar superficiais sentido mecanizada Central 20182019 2018 2019 2018/2019 edafoclimáticas C1 C (C1 C3 C7 referência 00,10 0010 0 0,10 10 0-0,1 0,100,20 010020 0,20 20 0,10-0,2 m principais quociente microbiano. microbiano . microbiano) silte seja 002 02 0,0 mm 2018201 201 2018/201 (C 00 00,1 001 010 0,1 1 0-0, 100 0,100,2 01002 020 0,2 2 0,10-0, 0, 201820 2018/20 00, 01 0-0 0,100, 0100 0,10-0 20182 2018/2 0- 0,100 0,10- 2018/

Esta revisão de escopo buscou investigar se e como a história das facções criminais oriundas do estado do Rio de Janeiro tem sido abordada na literatura científica. A pergunta de pesquisa foi: “como a história, percursos e desdobramentos da atuação das facções criminais oriundas do estado do Rio de Janeiro são descritos pela literatura científica?”. Para respondê-la, buscou publicações nas bases da Biblioteca Virtual em Saúde (BVS), SciELO, Scopus e Web Of Science. Foi adotado o procedimento duplo-cego para a seleção de publicações e o Guia PRISMA-ScR para sumarização dos resultados. Verificou-se que a história destas facções não foi objeto principal dos estudos, sendo abordada por eles de maneira breve e pontual. As formas de conceituá-las variavam desde as que enfatizavam sua atuação no tráfico; que destacavam seu caráter cultural; seu caráter de governança; seu caráter de resistência política. Quanto à história das facções, alguns trabalhos trouxeram dados sobre sua origem; outros sobre sua trajetória no mercado do tráfico; sobre o surgimento de uma “cultura de facção”; sobre a relação entre facções e Estado. As diferentes formas de conceituá-las e o destaque de certos aspectos de sua história em detrimento de outros seguem a tendência da literatura mais abrangente sobre o tema.

This scoping review aimed to investigate whether and how the history of criminal factions originating from the state of Rio de Janeiro has been addressed in the scientific literature. The research question was: “How are the history, pathways, and developments of the activities of criminal factions from the state of Rio de Janeiro described in the scientific literature?” To answer this, publications were searched in the Virtual Health Library (BVS), SciELO, Scopus, and Web of Science databases. A double-blind procedure was adopted for the selection of publications, and the PRISMA-ScR guidelines were used to summarize the results. It was found that the history of these factions was not the main focus of the studies, being briefly and sporadically addressed. The ways of conceptualizing them varied, ranging from those that emphasized their involvement in drug trafficking, their cultural nature, their governance structure, or their role in political resistance. Regarding the history of the factions, some studies provided data on their origins, others on their trajectory in the drug market, the emergence of a “faction culture” or the relationship between factions and the state. The different ways of conceptualizing these factions and the emphasis on certain aspects of their history over others reflect trends in the broader literature on the subject.

RESUMO A doença renal crônica (DRC) representa um dos principais problemas de saúde pública da atualidade. A dosagem da creatinina sérica e a estimativa da taxa de filtração glomerular (TFG) são as principais ferramentas para avaliação da função renal. Para a estimativa da TFG, existem diversas equações, sendo a mais recomendada a CKD-EPI (Chronic Kidney Disease – Epidemiology). Existem ainda algumas controvérsias com relação à dosagem da creatinina sérica e da estimativa da TFG, uma vez que vários fatores podem interferir nesse processo. Uma importante mudança recente foi a retirada da correção por raça das equações para estimativa da TFG, que superestimavam a função renal, e consequentemente retardavam a implementação de tratamentos como diálise e transplante renal. Neste documento de consenso da Sociedade Brasileira de Nefrologia e Sociedade Brasileira de Patologia Clínica e Medicina Laboratorial são revisados os principais conceitos relacionados à avaliação da função renal, possíveis controvérsias existentes e recomendações para a estimativa da TFG na prática clínica. DRC (DRC atualidade (TFG CKDEPI CKD EPI Chronic Epidemiology. Epidemiology . Epidemiology) processo clínica

ABSTRACT Chronic kidney disease (CKD) represents one of today’s main public health problems. Serum creatinine measurement and estimation of the glomerular filtration rate (GFR) are the main tools for evaluating renal function. There are several equations to estimate GFR, and CKD-EPI equation (Chronic Kidney Disease – Epidemiology) is the most recommended one. There are still some controversies regarding serum creatinine measurement and GFR estimation, since several factors can interfere in this process. An important recent change was the removal of the correction for race from the equations for estimating GFR, which overestimated kidney function, and consequently delayed the implementation of treatments such as dialysis and kidney transplantation. In this consensus document from the Brazilian Societies of Nephrology and Clinical Pathology and Laboratory Medicine, the main concepts related to the assessment of renal function are reviewed, as well as possible existing controversies and recommendations for estimating GFR in clinical practice. CKD (CKD todays today s problems (GFR CKDEPI EPI Epidemiology process transplantation Medicine reviewed practice

Resumen Antecedentes: El bosque tropical caducifolio constituye zonas con altos niveles de biodiversidad; sin embargo, este ecosistema presente en el municipio de Nocupétaro, Michoacán carece de inventarios florísticos. Preguntas: ¿Qué especies están presentes en el área de estudio? ¿Cuáles especies son endémicas de México y cuántas están en riesgo? ¿Con qué zona tiene mayor afinidad florística? Especies en estudio: Plantas vasculares. Sitio y fechas de estudio: Área de un bosque tropical caducifolio ubicada en el municipio de Nocupétaro, Michoacán, México; septiembre 2016 a noviembre 2017. Métodos: Se realizaron recolectas botánicas en campo. Los especímenes se identificaron con bibliografía especializada. La vegetación se definió con base en la fisonomía y las especies dominantes. Los resultados se comparan con cuatro zonas de bosque tropical caducifolio. Resultados: Se registran 56 familias, 135 géneros, 173 especies y ocho taxa infraespecíficos. Las familias mejor representadas son Fabaceae (34 spp.), Asteraceae (12 spp.), Euphorbiaceae (11 spp.), Apocynaceae (9 spp.), Malvaceae (8 spp.) y Convolvulaceae (7 spp.). Los géneros con más especies son Euphorbia (6), Senna (6), Ipomoea (5) y Bursera (4). Cuarenta y cinco especies son endémicas de México; dos están enlistadas en la NOM-059-SEMARNAT-2010 y tres en la Lista Roja de la IUCN con una categoría de riesgo. El área tiene mayor similitud florística con el cerro La Parotita. Conclusiones: La información generada es la base para otras investigaciones (ecológicas, faunísticas) y resalta la importancia de seguir estudiando y conservando este ecosistema en la región.

Abstract Background: Tropical deciduous forest possesses high levels of biodiversity; however, there is not a complete floristic survey of this ecosystem in the municipality of Nocupétaro, Michoacán. Questions: Which species are present in the study area? Which species are endemic to Mexico and how many are at risk? With which area does it have the greatest floristic affinity? Studied species: Vascular plants. Study site and dates: An area of tropical deciduous forest occurring in the municipality of Nocupétaro, Michoacán, Mexico; September 2016 to November 2017. Methods: Specimens were collected in the field and determined using pertinent specialized literature. The vegetation was defined using physiognomy and dominant species. Results: Fifty-six families, 135 genera, 173 species, and eight infraespecific taxa were registered. The families with more species were Fabaceae (34 spp.), Asteraceae (12 spp.), Euphorbiaceae (11 spp.), Apocynaceae (9 spp.), Malvaceae (8 spp.), and Convolvulaceae (7 spp.). The most speciose genera were Euphorbia (6), Senna (6), Ipomoea (5), and Bursera (4). Forty-five species are endemic to Mexico; two are listed in the NOM-059-SEMARNAT-2010 and three species are included IUCN Red List with a risk category. The area has a greater floristic affinity with the Parotita hill. Conclusions: The information generated is the basis for other research (ecological, fauna) and stand out the importance of continuing to study and conserve this ecosystem in the region.

Abstract Medical communication skills are treated as innate abilities, without the need for training and evaluation. However, they play a very important role in the doctor-patient relationship. Communication deficits are a cause of dissatisfaction and litigation. Quality communication is associated with greater adherence to proposed procedures and increases patient satisfaction and safety. Effective communication is particularly important in Gynecology-Obstetrics and justifies specific training. Formal teaching of communication skills should be included at all levels of medical education, just like technical-scientific skills.

Resumo As capacidades comunicacionais dos médicos são tratadas como habilidades inatas, sem a necessidade de treino e avaliação. Desempenham, no entanto, um papel da maior importância na relação médico-doente. Os déficits de comunicação são causa de descontentamento e motivo de litigância. A comunicação de qualidade está associada a maior adesão aos procedimentos propostos, aumenta a satisfação e segurança do doente. A comunicação eficaz assume particular acutilância em Ginecologia-Obstetrícia e justifica que seja objeto de treino específico. O ensino formal da competência em comunicação deve ser incluído em todos os níveis da educação médica, à semelhança das competências técnico-científicas.

Abstract Introduction: Autoimmune hepatitis (AIH) has a spectrum of symptoms ranging from asymptomatic disease to acute severe hepatitis, chronic hepatitis, and decompensated cirrhosis. The acute presentation is not rare and could represent genuine acute AIH (GAAIH) or acute exacerbation of chronic autoimmune hepatitis. We aimed to identify the prevalence, clinical features, and prognostic factors associated with GAAIH and compare these cases with acute exacerbation of chronic AIH. Methods: This cross-sectional observational study evaluated patients with acute AIH presentation, defined as total bilirubin >5 times the upper limit of normality (xULN) and/or alanine aminotransferase >10 xULN, and no prior history of liver disease. Histology findings of acute disease defined GAAIH. Bivariate analyses were performed to identify factors associated with the GAAIH, when compared with acute exacerbation of chronic AIH. Results: Seventy-two patients with acute presentation of AIH were included and six (8.3%) of them presented GAAIH. Comparative analysis between patients with GAAIH and patients with acute exacerbation of chronic AIH revealed that prothrombin activity (96% [74-100] vs. 61% [10-100]; p = 0.003) and albumin levels (3.9 ± 0.2 g/dL vs. 3.4 ± 0.5 g/dL; p < 0.001) were higher in patients with GAAIH. The International Autoimmune Hepatitis Group score was higher in patients with acute exacerbation of chronic AIH (18.5 [8-23] vs. 16.5 [15-17]; p = 0.010). Compared to 15.2% of acute exacerbation of chronic AIH, complete therapeutic response to treatment was achieved in 67.7% of cases with GAAIH (p = 0.018). Conclusions: GAAIH was rare (8.3%), and patients with this presentation exhibited more preserved liver function tests, suggesting that most cases presenting with loss of function are acute exacerbation of chronic AIH. Additionally, patients with GAAIH had a better complete therapeutic response, suggesting a more preserved liver function at presentation, and early diagnosis has a positive therapeutic implication.

Resumo Introdução: A hepatite autoimune (HAI) apresenta um espectro de sintomas que varia de doença assintomática a hepatite aguda grave, hepatite crónica e cirrose descompensada. A apresentação aguda não é rara e pode representar hepatite autoimune aguda genuína (HAIAG) ou exacerbação aguda de hepatite autoimune crónica (EAHAIC). O nosso objetivo foi identificar a prevalência, caraterísticas clínicas e fatores prognósticos associados à HAIAG, e comparar esses casos com EAHAIC. Métodos: Estudo observacional, transversal, incluindo doentes com apresentação aguda de HAI, definida como bilirrubina total > 5 vezes o limite superior da normalidade (xLSN) e/ou ALT > 10 xLSN, e sem história prévia de doença hepática. HAIAG foi definida pela presença de achados histológicos de doença aguda. Análises bivariadas foram realizadas para identificar fatores associados à HAIAG, quando comparado com o EAHAIC. Resultados: Foram incluídos setenta e dois doentes com apresentação agu-da de HAI, dos quais seis (8.3%) com HAIAG. A análise comparativa entre doentes com HAIAG e doentes com EAHAIC mostrou que a atividade de protrombina (96%(74-100) versus 61% (10-100; p=0.003) e os níveis de albumina (3,9 ± 0,2 g/dL vs. 3,4 ± 0,5 g/dL; p < 0,001) foram significativamente mais elevados em pacientes com HAIAG. O score do Grupo Internacional de Hepatite Autoimune foi mais elevado em doentes com EAHAIC (18.5 (8-23) versus 16.5 (15-17); p=0.010). A resposta terapêutica completa ao tratamento foi alcançada em 66.7% dos casos de HAIAG (vs. 15,2% na EAHAIC, p=0,018). Conclusões: A HAIAG é rara (8.3%), e os doentes com esta apresentação mostraram testes de função hepática mais preservados, sugerindo que a maioria dos casos com perda de função são EAHAIC. Além disso, os doentes com HAIAG tiveram maior taxa de resposta terapêutica completa, sugerindo que uma função hepática mais preservada na apresentação e o diagnóstico precoce tem uma implicação terapêutica positiva.