The use of materials such as organofunctionalized silica for application in solid phase extraction (SPE) allows the preconcentration of several ions, including Pt, and subsequent detection. This work aims to synthesize and characterize an organofunctionalized silica (Sil-TMSDT) with the silylant N’(trimethoxysilyl)propylethylenetriamine and its application as a solid phase in the preconcentration Pt4+ ions in aqueous media, using detection by flame atomization atomic absorption spectroscopy (FAAS). The Fourier-transform infrared spectroscopy (FTIR) spectra and scanning electron microscopy (SEM) coupled with energy-dispersive spectroscopy (EDS) confirmed the aminofunctionalization of the silica. For the adsorption process, a preconcentration mini-column with 200 mg of Sil-TMSDT, a solution of 0.485 mg L−1 of K2[PtCl6] at pH 10 and HNO3 0.5 mol L−1 as eluent were used, obtaining an enrichment factor of 15-fold with retention efficiency higher than 99%. The Pt4+ ion determined by FAAS showed a linear response between 0.02 and 0.40 mg L−1; a linear coefficient where R = 0.9981; a 16-fold preconcentration factor; a limit of quantification (LOQ) and limit of detection (LOD) of 0.045 and 0.014 mg L−1, respectively. The proposal system showed analytical applicability to determining Pt4+ ion in an aqueous medium and could be used to detect traces of this potentially toxic metal in biological fluids such as urine and blood. SPE (SPE Pt SilTMSDT Sil TMSDT (Sil-TMSDT Ntrimethoxysilylpropylethylenetriamine N trimethoxysilyl propylethylenetriamine Pt4 media FAAS. . (FAAS) Fouriertransform Fourier transform FTIR (FTIR SEM (SEM energydispersive energy dispersive EDS (EDS process minicolumn mini column 20 SilTMSDT, TMSDT, Sil-TMSDT 0485 0 485 0.48 L1 L 1 L− K2PtCl6 KPtCl K2 PtCl6 K PtCl K2[PtCl6 HNO 05 5 0. 15fold fold 15 99 99% 002 02 0.0 040 40 0.4 0.9981 09981 9981 16fold 16 LOQ (LOQ LOD (LOD 0045 045 0.04 0014 014 0.01 respectively blood (FAAS 2 048 48 K2PtCl K2[PtCl 9 00 04 4 0.998 0998 998 004 001 01 0.99 099 0.9 09

Jaboticaba peel powder (JPP) is a residue that contains phenolic compounds, such as anthocyanins and gallic acid. An adsorbent-bioactive complex (ABC) was synthesized using an extract rich in compounds with antioxidant properties obtained from JPP immobilized on microcrystalline cellulose from sweet sorghum bagasse. In this work, the result of thermal degradation of anthocyanins from JPP and ABC, activation energy (Ea), half-life time (t1/2), decimal reduction time (D), temperature variation (Z), thermodynamic parameters (enthalpy (ΔH), Gibbs free energy (ΔG) and entropy (ΔS)) and degradation of antioxidant activities were investigated. Anthocyanin degradation of 35, 60 and 85% was observed for JPP and 10, 30 and 65% for ABC at temperatures of 90-130 °C. Ea of JPP and ABC were 110 and 91 kJ mol-1, respectively. ABC was able to increase from 143-690% the half-life time when compared to JPP. The Z parameter indicated that a greater temperature variation is necessary to degrade ABC anthocyanins (31 °C) when compared to JPP (25 °C). The thermodynamic parameters showed that the energy needed to be broken down to reach the transition state is higher for JPP than ABC, in addition ABC is closer to its thermodynamic equilibrium state. Thus, ABC can be used as an additive in pharmaceutical, cosmetics and food industries, maintaining bioactive and antioxidant properties. (JPP acid adsorbentbioactive adsorbent (ABC bagasse work Ea, , (Ea) halflife half life t1/2, t12 t t1/2 t1 2 (t1/2) D, D (D) Z, (Z) enthalpy ΔH, ΔH (ΔH) ΔG (ΔG ΔS (ΔS) investigated 35 6 85 10 3 65 90130 90 130 90-13 C °C 11 9 mol1, mol1 mol 1, 1 mol-1 respectively 143690% 143690 143 690% 690 143-690 31 (3 25 (2 . Thus pharmaceutical industries (Ea t1/ (t1/2 (D (Z (ΔH (ΔS 8 9013 13 90-1 mol- 14369 14 69 143-69 ( (t1/ 901 90- 1436 143-6 (t1 143- (t

Lantana caatingensis Moldenke (Verbenaceae) is an endemic plant from northeastern Brazil. However, its chemical composition is almost unknown. This study aimed to characterize the chemical compounds found in L. caatingensis and investigate the antileishmanial potential of its hydroalcoholic extract and polar fractions. Compounds present in the hydroalcoholic extract obtained from L. caatingensis leaves and its polar fractions (ethyl acetate and methanolic) were analyzed by liquid chromatography with a photodiode-array detector coupled to electrospray ionization quadrupole time-of-flight mass spectrometry. An antileishmanial assay was performed in a 96-well plate against Leishmania major promastigotes using resazurin on a plate spectrophotometer and the results were expressed as percentage of growth inhibition. Nine compounds were determined in the investigated extract and fractions, classified as flavonoids, flavonoid C-glycosides and phenylethanoid glycosides. The antileishmanial activity revealed that the hydroalcoholic extract and the ethyl acetate fraction were active against L. major promastigotes with inhibitory concentration of 71.78 and 26.86 µg mL-1, respectively, while the methanolic fraction was inactive (478.40 µg mL-1). This is the first report on the chemical composition and antileishmanial activity of L. caatingensis extracts. These results contribute to further knowledge of species belonging to the Lantana genus. Verbenaceae (Verbenaceae Brazil However unknown L photodiodearray photodiode array timeofflight time flight spectrometry 96well well 96 inhibition flavonoids Cglycosides C glycosides 7178 71 78 71.7 2686 26 86 26.8 mL1, mL1 mL 1, 1 mL-1 respectively 478.40 47840 478 40 (478.4 mL1. . mL-1) extracts genus 9 717 7 71. 268 2 8 26. mL- 478.4 4784 47 4 (478. 478. (478 (47 (4 (

In this study, we aimed to investigate the anticancer activity of the extract, fractions, and isolated compounds of the flowers of Fridericia platyphylla, and to characterize the bioactive compounds. The chemical diversity of the extracts and fractions was investigated using liquid chromatography coupled with high resolution mass spectrometry (LC-HRMS). We were able to annotate 26 compounds from the classes of flavones, flavonols, flavanones, isoflavones, and cinnamic acid and its derivatives. The dichloromethane fraction showed greater cytotoxicity at a concentration of 100 µg mL−1. In addition, the inhibitory concentrations of the dichloromethane fraction were 22.14 and 30.9 µg mL−1 for MCF-7 and MDA-MB-231 cell lines, respectively, and were capable of inhibiting tumor cell migration. Brachydins A and C were isolated from the dichloromethane fraction and showed the greatest cytotoxicity. The results obtained from this study show the potential biological effect of F. platyphylla flowers as a possible antitumor pharmacological agent. extract LCHRMS. LCHRMS LC HRMS . (LC-HRMS) 2 flavones flavonols flavanones isoflavones derivatives 10 mL1 mL 1 addition 2214 22 14 22.1 309 30 9 30. mL− MCF7 MCF 7 MCF- MDAMB231 MDAMB MDA MB 231 MDA-MB-23 lines respectively migration F agent (LC-HRMS 221 22. 3 MDAMB23 23 MDA-MB-2 MDAMB2 MDA-MB- MDA-MB

In this work, a miniaturized version of the QuEChERS (quick, easy, cheap, effective, rugged, and safe) method was optimized, validated, and applied for extracting eight pesticide residues in anuran liver tissue samples. The extracts were quantified by high-performance liquid chromatography with diode array detection, and the detected residues in liver tissue samples were identified by tandem mass spectrometry-liquid chromatography. The optimized extraction method entailed the scale reduction of the QuEChERS method twenty times using 500 mg of liver tissue sample, 200 mg Mg2SO4, 50 mg NaCl, 1.5 mL of acetonitrile, and a mixture of 25 mg C18 + 25 mg PSA (primary-secondary amine) as dispersive solid-phase extraction sorbent. The method was validated using liver tissue samples spiked at two levels of pesticide concentrations according to the SANTE/11312/2021 document. Recoveries ranged from 91-110% with a relative standard deviation < 20%. The method robustness assessed by the Steiner and Youden test resulted in recovery rate variations of less than 2% for all pesticides after deliberated changes in seven variables. The validated method was applied to 72 liver tissue samples from two anuran species, registering residues of some pesticides in 31 samples. The proposed method proved to be efficient, precise, and robust for determining pesticide residues in anuran liver tissues. work quick, quick (quick easy cheap effective rugged safe highperformance high performance detection spectrometryliquid spectrometry sample 20 Mg2SO4 MgSO Mg SO 5 NaCl 15 1 1. acetonitrile 2 C C1 primarysecondary primary secondary amine solidphase solid phase sorbent SANTE113122021 SANTE 11312 2021 SANTE/11312/202 document 91110% 91110 91 110% 110 91-110 20% variables 7 species 3 efficient precise tissues Mg2SO SANTE11312202 1131 202 SANTE/11312/20 9111 9 11 91-11 SANTE1131220 113 SANTE/11312/2 911 91-1 SANTE113122 SANTE/11312/ 91- SANTE11312 SANTE/11312 SANTE1131 SANTE/1131 SANTE113 SANTE/113 SANTE11 SANTE/11 SANTE1 SANTE/1 SANTE/

Species from Pavonia genus (Malvaceae) are traditionally used as antioxidant, n anti inflammatory and antimicrobial remedies. Previous studies have revealed their diversity of specialized metabolites widely used in the development of new medicines. This is the first study on Pavonia glazioviana Gurke, a Brazilian species known as “Malva da Chapada”. The research led to identify fifteen compounds: 132 (S) hydroxy pheophytin a; and 132(S) hydroxy 173 ethoxyphaeophorbide, n decanol, cycloart 23Z ene 3β,25 diol, cycloart 24S 25 ene 3β,24 diol, sitosterol 3 O β D glucopyranoside, stigmasterol 3 O β D glucopyranoside, quercetin, acacetin, kaempferol, tiliroside, 5 hydroxy 3,7,8,4’ tetramethoxyflavone, 5,7 dihydroxy 3,8,4’ trimethoxyflavone, 5,7 dihydroxy 4’ methoxyflavone, 5,7,4’ trihydroxy 3,8 dimethoxyflavone and 5,7,4’ trihydroxy 3 methoxyflavone. The major flavonoids were tested for their antimicrobial activity, and the compound 5,7 dihydroxy 3,8,4’ trimethoxyflavone showed strong activity against Escherichia coli (MIC = 512 μg mL1), Pseudomonas aeruginosa (MIC = 512 μg mL1), Candida albicans (MIC = 512 μg mL1), Candida tropicalis (MIC = 512 μg mL1), Candida parapsilosis (MIC = 512 μg mL1), Aspergillus flavus (MIC = 512 μg mL1) and A. fumigantus (MIC = 512 μg mL1). The total phenolic content, flavonoid content, and radical scavenging potential were determined showing its great production of phenolics and flavonoids, along with interesting radical scavenging potential (DPPH EC50 = 6.36 ± 0.029 mg mL 1). Our findings contributed to characterize P. glazioviana as a source of methoxylated flavonoids with antimicrobial potential. Malvaceae (Malvaceae antioxidant remedies medicines Gurke Malva Chapada. Chapada . Chapada” compounds 13 S (S 132S 132(S 17 ethoxyphaeophorbide decanol Z 3β25 3β 3β,2 diol 2 3β24 24 glucopyranoside quercetin acacetin kaempferol tiliroside 3,7,8,4 3784 7 8 4 tetramethoxyflavone 57 5, 3,8,4 384 methoxyflavone 5,7,4 574 38 3, MIC 51 mL1, mL1 , A mL1. content DPPH EC EC5 636 6 36 6.3 0029 0 029 0.02 1. 1 1) P 3β2 3β, 3,7,8, 378 3,8, 5,7, 63 6. 002 02 0.0 3,7,8 37 00 0. 3,7, 3,7

With the increase in life expectancy and the significant incidence of lesions of the musculoskeletal system, both the public and private sectors seek improvements in their products and processes in order to contribute to the health of the population. Every year tons of chicken eggshell (CES) from domestic consumption are released in environment and the present work aims the production of a synthetic ceramic bone substitute using the eggshell as a source of calcium ions. According to the methodology, 5, 10, 15 and 20 mol% of iron ions were used and the characterization assays demonstrated the formation of a double calcium iron phosphate - Ca9Fe(PO4)7. MG63 cells were cultured on test specimens to cell viability assay and to each doped group analyzed, verifying cell compatibility with the studied compounds, as well as a good adhesion profile. Scanning electron microscopy (SEM) of the cells showed that material surface favored cell adhesion and the results demonstrated that the production of the compounds were viable to Ca9Fe(PO4)7 phase. So, in the future, it will be possible to have a final comprehensive biological compatibility of the prototype for further in vitro and in vivo assays. system population CES (CES methodology 5 10 1 2 mol Ca9FePO47. Ca9FePO47 CaFePO Ca9Fe PO4 7. 7 Ca Fe PO MG MG6 analyzed profile SEM (SEM Ca9Fe(PO4) phase So future FePO Ca9FePO4 CaFe Ca9Fe(PO4 Ca9FePO Ca9Fe(PO

RESUMO A capacidade de campo do Latossolo foi avaliada usando os métodos de densidade de fluxo de água em campo, modelo Arya-Paris e câmara de pressão de Richards com amostras não deformadas, e a curva de retenção de água e a umidade do solo foram determinadas usando o modelo de Arya-Paris a uma pressão de 10 kPa. A pesquisa foi desenvolvida na Universidade Federal de Rondonópolis, Mato Grosso. O solo avaliado foi Latossolo nas camadas 0-10 e 10-20 cm. Usando o método da densidade de fluxo, a uma densidade de fluxo de água q = 0,10 mm por dia e 1,0 mm por dia, os valores de umidade do solo na capacidade de campo foram de 0,30 e 0,32 m3 m-3, respectivamente, para uma profundidade de 0-10 cm, e 0,28 e 0,31 m3 m-3, respectivamente, para uma profundidade de 10-20 cm. Comparando os resultados obtidos com a câmara de pressão com os da capacidade de campo obtidos para q = 0,1 mm por dia, o erro absoluto médio e o viés foram 0,880 e -0,218, respectivamente, para a profundidade de 0-10 cm, e 2,57 e -2,57, respectivamente, para a profundidade de 10-20 cm. A capacidade de campo do Latossolo pode ser obtida submetendo amostras não deformadas de 50 cm3 a uma pressão de 10 kPa. O modelo Arya-Paris é uma alternativa para determinar a curva de retenção de água do solo e a capacidade de campo do Latossolo. AryaParis Arya Paris 1 kPa Rondonópolis Grosso 010 0 0-1 1020 20 10-2 cm 1, 030 30 0,3 032 32 m m3, 3, 3 m-3 respectivamente 028 28 0,2 031 31 01 0, 0880 880 0,88 0,218, 0218 218 -0,218 257 2 57 2,5 2,57, -2,57 5 0- 102 10- 03 m- 02 088 88 0,8 0,218 021 21 -0,21 25 2, -2,5 08 8 0,21 -0,2 -2, -0, -2 -0 -

ABSTRACT The field capacity of Oxisol was evaluated using the flux density in the field, Arya-Paris model, and Richards pressure chamber with non-deformed samples, and the water retention curve and soil moisture were determined using the Arya-Paris model at a pressure of 10 kPa. The research was conducted at the Federal University of Rondonópolis, Mato Grosso state, Brazil. The soil evaluated was Oxisol at depths of 0-10 and 10-20 cm. Using the flux density method, at a water flux density q = 0.10 mm per day and 1.0 mm per day, soil moisture values at field capacity were 0.30 and 0.32 m3 m-3, respectively, at a depth of 0-10 cm and 0.28 and 0.31 m3 m-3, respectively, at a depth of 10-20 cm. Comparing the results obtained with the pressure chamber with those of the field capacity obtained for q = 0.1 mm per day, the mean absolute error and bias were 0.880 and -0.218, respectively, for the 0-10 cm depth and 2.57 and -2.57, respectively, for the 10-20 cm depth. Field capacity of Oxisol can be obtained by subjecting undeformed 50 cm3 samples to a pressure of 10 kPa. The Arya-Paris model is an alternative for determining the soil water retention curve and the field capacity of Oxisol. AryaParis Arya Paris nondeformed non deformed 1 kPa Rondonópolis state Brazil 010 0 0-1 1020 20 10-2 method 1. 030 30 0.3 032 32 m m3, 3, 3 m-3 respectively 028 28 0.2 031 31 01 0. 0880 880 0.88 0.218, 0218 218 -0.218 257 2 57 2.5 2.57, -2.57 5 0- 102 10- 03 m- 02 088 88 0.8 0.218 021 21 -0.21 25 2. -2.5 08 8 0.21 -0.2 -2. -0. -2 -0 -

RESUMO Óleos essenciais usados como bioherbicidas são uma alternativa promissora na agricultura. O objetivo deste trabalho foi avaliar o potencial fitotóxico do óleo essencial de Piper marginatum, através de estudo in vitro com folhas destacadas e em pós-emergência de três espécies comerciais (alface, pimentão e tomate) e uma planta daninha (Spermacoce verticillata). Os experimentos foram conduzidos em delineamento casualizado com seis tratamentos que consistiram em quatro concentrações de óleo essencial (0,001; 0,01; 0,1 e 1% [v/v]), e dois tratamentos controle (água destilada, e 1% de polissorbato 80 em água destilada). O óleo essencial de P. marginatum apresentou efeito fitotóxico sobre as folhas das espécies experimentais. A maior concentração de óleo essencial resultou em maiores efeitos de toxicidade nas folhas de tomate, alface e pimentão. A concentração de 0,1% de óleo essencial foi suficiente para destruir completamente as folhas de S. verticillata. Sete dias após a aplicação, o óleo essencial de P. marginatum não evidenciou efeitos adversos no crescimento das plantas na fase pós-emergencial. Recomenda-se investigar sua possível atividade fitotóxica em outras fases do desenvolvimento vegetal, para entender o seu modo de ação e potencial como alternativa no desenvolvimento de bioprodutos para controle de plantas daninhas. agricultura pósemergência pós emergência alface, (alface tomate Spermacoce verticillata . verticillata) 0,001 0001 0 001 (0,001 0,01 01 1 0, v/v, vv v/v , v [v/v]) destilada 8 destilada. destilada) P experimentais S aplicação pósemergencial. pósemergencial emergencial. emergencial pós-emergencial Recomendase Recomenda se vegetal daninhas 0,00 000 00 (0,00 0,0 [v/v] (0,0 [v/v (0, (0 (

ABSTRACT Essential oils used as bioherbicides are a promising alternative in agriculture. This study aimed to assess the phytotoxic potential of Piper marginatum essential oil through an in vitro study with detached and post-emergence leaves of three commercial species (lettuce, pepper, and tomato) and a weed (Spermacoce verticillata). The experiments were conducted in a randomized design with six treatments that consisted of four concentrations of essential oil (0.001, 0.01, 0.1, and 1% [v/v]) and two control treatments (distilled water, and 1% polysorbate 80 in distilled water). The P. marginatum essential oil had a phytotoxic effect on the leaves of the experimental species. The highest essential oil concentration resulted in greater toxicity effects on tomato, lettuce, and pepper leaves. The 0.1% essential oil concentration completely destroyed the S. verticillata leaves. Seven days after application, the P. marginatum essential oil did not show adverse effects on plant growth in the post-emergence phase. It is recommended to investigate its possible phytotoxic activity in other phases of plant development to understand its mode of action and potential as an alternative to developing bioproducts for weed control. agriculture postemergence post emergence lettuce (lettuce tomato Spermacoce verticillata. . verticillata) 0.001, 0001 0 001 (0.001 01 0.01 1 0.1 v/v vv v [v/v] water 8 water. water) P S application phase 0.001 000 00 (0.00 0.0 0. [v/v 0.00 (0.0 (0. (0 (

The emergence of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) stands for being the most serious epidemic (so far) of the 21st century. However, only a few computational studies have investigated the molecular mechanisms underlying the neutralization of the spike protein by antibodies of different classes. Hence, bioinformatic methods were employed to unravel the factors contributing to the remarkable neutralization capacity exhibited by specific antibodies. Initially, crystallographic structures of IgA monomeric / dimeric, IgG, and IgM antibodies binding with the receptor-binding domain region of the SARS-CoV-2 spike protein were retrieved. Subsequently, rigid molecular docking and molecular dynamic simulations were performed over 100 ns with explicit water solvation. Lastly, an energy decomposition was conducted to estimate the binding affinity using the last frames from molecular dynamics. The results revealed a higher binding affinity for both monomeric and dimeric forms of IgA antibodies against the spike protein. Additionally, a greater number of hydrogen bonds were observed during their interaction with the spike protein, as well as greater structural instability along the time and especially a more thermodynamically favorable interaction affinity. In this way, the research contributes a small piece to the complex puzzle of understanding the humoral immune response induced by the SARS-CoV-2 virus. SARSCoV2 SARSCoV SARS CoV (SARS-CoV-2 so far st century However classes Hence Initially IgG receptorbinding receptor SARS-CoV- retrieved Subsequently 10 solvation Lastly dynamics Additionally way virus (SARS-CoV- SARS-CoV 1 (SARS-CoV

RESUMO A salinidade é um fator abiótico que prejudica o crescimento e os mecanismos fisiológicos, bioquímicos e moleculares das plantas. Entre as plantas, a soja é uma cultura importante mundialmente, portanto, o manejo de fatores abióticos é essencial para mitigar os danos às plantas. No entanto, bioestimulantes, como a melatonina, estão sendo usados para aliviar o estresse causado por esses fatores. Portanto, este estudo teve como objetivo avaliar o crescimento, os pigmentos fotossintéticos e as relações hídricas de plantas de soja aplicadas a níveis de salinidade e aplicação exógena de melatonina. A pesquisa foi realizada em área experimental pertencente à Universidade Federal Rural do SemiÁrido, Mossoró, RN, Brasil. O delineamento experimental foi em blocos casualizados, arranjados em esquema fatorial 3 x 3 (três níveis de salinidade na água de irrigação - 0.50, 3.00 e 5.00 dS m-1 e três concentrações de melatonina - 0, 0.5 e 1 mM), com três repetições. Aos 47 dias após o plantio, foram avaliados a altura da planta, diâmetro do caule, número de folhas, comprimento radicular, teor de clorofila (a, b e total), conteúdo relativo de água, umidade foliar e extravasamento de eletrólitos. As plantas de soja toleraram os efeitos da salinidade nos aspectos de crescimento, nos pigmentos fotossintéticos e nas relações hídricas até 3,00 dS m-1, independentemente da concentração de melatonina. A aplicação exógena de melatonina mitigou os efeitos do estresse salino na clorofila b e no conteúdo relativo de água, no nível de salinidade de 5.00 dS m-1 e concentração de 1 mM. fisiológicos mundialmente portanto entanto bioestimulantes Portanto SemiÁrido Mossoró RN Brasil casualizados 050 0 50 0.50 300 00 3.0 500 5 5.0 m1 m m- 05 0. mM, mM , mM) repetições 4 plantio planta caule folhas radicular a, (a total, total total) eletrólitos 3,0 m1, 1, 30 3. 5. 3,

ABSTRACT Salinity is an abiotic factor that impairs the growth and physiological, biochemical, and molecular mechanisms of plants. Among plants, soybeans are an important crop worldwide, so managing abiotic factors is essential to mitigate plant damage. However, biostimulants, such as melatonin, are being employed to alleviate the stress caused by these factors. Therefore, this study aimed to evaluate the growth, photosynthetic pigments, and water relations of soybean plants subjected to salinity levels and exogenous melatonin application. The research was conducted in experimental area belonging to the Federal Rural University of the Semi-Arid Region, Mossoró, RN, Brazil. The experimental design was randomized blocks, arranged in a 3 x 3 factorial scheme (three salinity levels in the irrigation water - 0.50, 3.00, and 5.00 dS m-1 and three melatonin concentrations - 0, 0.5, and 1 mM) with three replications. At 47 days after planting, plant height, stem diameter, number of leaves, root length, chlorophyll content (a, b, and total), relative water content, leaf moisture, and electrolyte leakage were evaluated. Soybean plants tolerated the effects of salinity on growth aspects, photosynthetic pigments, and water relations up to 3.00 dS m-1, regardless of melatonin concentration. Exogenous application of melatonin mitigated the effects of salt stress on chlorophyll b and relative water content at salinity level of 5.00 dS m-1 and concentration of 1 mM. physiological biochemical worldwide damage However biostimulants Therefore pigments SemiArid Semi Arid Region Mossoró RN Brazil blocks 050 0 50 0.50 300 00 500 5 5.0 m1 m m- 05 0.5 mM replications 4 planting height diameter leaves length a, (a total, total , total) moisture evaluated aspects 3.0 m1, 1, 30 5. 0. 3.

RESUMO O aumento da fertilidade do solo no cultivo de hortaliças apresenta desafios, notadamente usando adubo verde de espécies espontâneas do bioma Caatinga, como a flor-de-seda (Calotropis procera [Ait.] R. Br.). Este estudo teve como objetivo avaliar e otimizar as eficiências física e econômica da rúcula em monocultivo, influenciadas por quantidades variáveis de biomassa de flor-de-seda. Um delineamento em blocos casualizados com sete tratamentos e cinco repetições foi utilizado. Os tratamentos consistiram de diferentes quantidades de biomassa de C. procera (20, 40, 60, 80 e 100 t ha-1 em base seca), juntamente com dois tratamentos adicionais em cada bloco: um controle (sem fertilização) e um com fertilização mineral. A cultivar de rúcula "Cultivada" foi adubada para máxima eficiência produtiva usando 63,31 t ha-1 de biomassa seca de C. procera, rendendo 8,45 t ha-1. A maior eficiência agroeconômica otimizada, refletindo uma renda líquida de R$ 111.007,64 por hectare, foi alcançada com 59,26 t ha-1 de biomassa seca de C. procera. A taxa de retorno foi de R$ 4,65 para cada real investido, com um índice de rentabilidade de 77,38%. Assim, utilizar biomassa de C. procera como adubo verde é uma tecnologia viável para produtores de rúcula em regiões semiáridas. desafios Caatinga flordeseda flor seda Calotropis Ait. Ait [Ait. R Br.. Br Br. . Br.) monocultivo flordeseda. seda. utilizado C 20, 20 (20 40 60 8 10 ha1 ha 1 ha- seca, , seca) bloco sem mineral Cultivada "Cultivada 6331 63 31 63,3 845 45 8,4 ha1. 1. otimizada 11100764 111 007 64 111.007,6 hectare 5926 59 26 59,2 465 4 65 4,6 investido 7738 77 38 77,38% Assim semiáridas [Ait 2 (2 6 633 3 63, 84 8, 1110076 11 00 111.007, 592 5 59, 46 4, 773 7 77,38 ( 111007 0 111.007 77,3 11100 111.00 77, 1110 111.0 111.

ABSTRACT Enhancing soil fertility in vegetable cultivation presents challenges, notably using green manure from spontaneous species in the Caatinga biome, such as roostertree (Calotropis procera [Ait.] R. Br.). This study aimed to evaluate and optimize the physical and economic efficiencies of monocropped arugula, as influenced by varying amounts of roostertree biomass. We employed a randomized block design with seven treatments and five replications. Treatments involved different quantities of C. procera biomass (20, 40, 60, 80, and 100 t ha-1 on a dry basis), along with two additional treatments in each block: a control (no fertilization) and one with mineral fertilization. The "Cultivada" arugula cultivar was fertilized for maximum productive efficiency using 63.31 t ha-1 of C. procera dry biomass, yielding 8.45 t ha-1. The highest optimized agroeconomic efficiency, reflecting a net income of BRL 111,007.64 per hectare, was achieved with 59.26 t ha-1 of C. procera dry biomass. The return rate was BRL 4.65 for every real investment, with a profitability index of 77.38%. Thus, using C. procera biomass as green manure is a viable technology for arugula producers in semi -arid regions. challenges biome Calotropis Ait. Ait [Ait. R Br.. Br Br. . Br.) replications C 20, 20 (20 40 60 80 10 ha1 ha 1 ha- basis, basis , basis) no fertilization Cultivada "Cultivada 6331 63 31 63.3 845 8 45 8.4 ha1. 1. 11100764 111 007 64 111,007.6 hectare 5926 59 26 59.2 465 4 65 4.6 investment 7738 77 38 77.38% Thus arid regions [Ait 2 (2 6 633 3 63. 84 8. 1110076 11 00 111,007. 592 5 59. 46 4. 773 7 77.38 ( 111007 0 111,007 77.3 11100 111,00 77. 1110 111,0 111,

RESUMO O quiabeiro (Abelmoschus esculentus L. Moench) é uma cultura pouco estudada, quando comparada a outras espécies da família Malvaceae, por isso apresenta grande potencial para estudos, principalmente, na área de melhoramento genético. A caracterização morfológica é uma etapa de pré-melhoramento que pode ser realizada através de descritores quantitativos e/ou qualitativos. Sendo assim, esse trabalho teve como objetivo caracterizar morfologicamente acessos comerciais de quiabeiro para delimitar um programa de melhoramento para a cultura. O experimento foi conduzido na área experimental do Instituto Federal de Alagoas - Campus Piranhas, utilizando o delineamento em blocos casualizados, com cinco tratamentos em cinco repetições. As plantas e os frutos foram caracterizados através dos descritores qualitativos. Foi utilizada a técnica de agrupamento hierárquico baseado na média não ponderada dos pares de acessos (UPGMA) para agrupar os acessos. A maior distância genética foi visualizada entre os acessos Santa Cruz-47 e Clemson Americano 80 e a menor entre os acessos Cariri e Apuim. Houve a formação de dois grupos pelo método de agrupamento UPGMA, sendo o grupo I formado pelos acessos Clemson Americano 80 e Canindé, e o grupo II dos demais acessos (Cariri, Apuim e Santa Cruz-47). Híbridos viáveis podem ser obtidos a partir de cruzamentos entre acessos do grupo I e do grupo II. Abelmoschus L Moench estudada Malvaceae estudos principalmente genético prémelhoramento pré eou ou qualitativos assim Piranhas casualizados repetições UPGMA (UPGMA Cruz47 Cruz 47 Cruz-4 8 Canindé Cariri, (Cariri Cruz47. . Cruz-47) Cruz4 4 Cruz-

ABSTRACT Okra (Abelmoschus esculentus L. Moench) has been less studied compared to other crop species of the family Malvaceae, thus presenting high potential for research, mainly in genetic improvement. Morphological characterization is a pre-breeding step that can be conducted using quantitative and qualitative descriptors. Thus, the objective of this study was to morphologically characterize commercial okra accessions to provide a foundation for breeding programs in this crop species. The experiment was conducted in the experimental area of the Federal Institute of Alagoas, Piranhas, AL, Brazil, using a randomized block design with five treatments and five replications. Okra plants and fruits were characterized through qualitative descriptors, using a hierarchical clustering of accessions based on Unweighted Pair Group Method with Arithmetic Mean (UPGMA). The greatest genetic distance was found between the Santa Cruz-47 and Clemson Americano-80 accessions, whereas the lowest distance was found between the Cariri and Apuim accessions. The UPGMA analysis resulted in two accession groups: group I consisting of Clemson Americano-80 and Canindé accessions, and group II consisting of Cariri, Apuim, and Santa Cruz-47 accessions. Viable hybrids can be obtained from crossings between accessions of group I and group II. Abelmoschus L Moench Malvaceae research improvement prebreeding pre descriptors Thus Alagoas Piranhas AL Brazil replications UPGMA. . (UPGMA) Cruz47 Cruz 47 Cruz-4 Americano80 Americano 80 Americano-8 groups (UPGMA Cruz4 4 Cruz- Americano8 8 Americano-

Abstract Introduction: Macrobrachium amazonicum is widely distributed in South America, occurring in the Orinoco, Amazon and Paraguay river basins, being used as an important source of protein for feeding riverside populations. This prawn is host to the crustacean ectoparasites Probopyrus pandalicola, Probopyrus floridensis and Probopyrus bithynis (Bopyridae) that infest the gill cavity of the species. Objective: To report the prevalence and abundance of ectopasites (P. pandalicola, P. floridensis and P. bithynis) and the condition factor in M. amazonicum from the Amazon River, Eastern Amazon. Methods: The prawns were collected from May 2017 to April 2018, with the artisanal trap matapi in the municipalities of Mazagão (state of Amapá) and Santarém (state of Pará), Brazil. Results: 216 prawns infected with ectoparasites were captured, 133 in the Mazagão region (53 P. pandalicola, 48 P. bithynis and 32 P. floridensis) and 83 in the Santarém region (45 P. pandalicola and 38 P. bithynis). In Mazagão, the highest prevalence values were recorded in May (1.98 %) for P. floridensis, July (2.18 %) for P. bithynis, and March (1.93 %) for P. pandalicola. In the Santarém region, the highest prevalence values were recorded in February, 3.47 for P. pandalicola and 2.89 for P. bithynis. Regarding the abundance of parasites, there was no difference between the species grouped between the regions (t = 0.32, p = 0.739). Parasitized prawns from Mazagão and Santarém presented condition factors below expectations, with an average of 0.85 ± 0.55 for Santarém and 0.88 ± 0.44 for Mazagão. Conclusions: During the study it was found that P. pandalicola, P. bithynis and P. floridensis were present in M. amazonicum throughout the year. Furthermore, there was an effect of parasitism on M. amazonicum in the study areas.

Resumen Introducción: Macrobrachium amazonicum está ampliamente distribuido en América del Sur, se encuentra en las cuencas de los ríos Orinoco, Amazonas y Paraguay, se utiliza como una fuente importante de proteínas para alimentar a las poblaciones ribereñas. Este camarón es hospedero de los ectoparásitos crustáceos: Probopyrus pandalicola, Probopyrus floridensis y Probopyrus bithynis (Bopyridae), que infestan la cavidad branquial de la especie. Objetivo: Reportar la prevalencia y abundancia de ectoparásitos (P. pandalicola, P. floridensis y P. bithynis) y el factor de condición de M. amazonicum en el| río Amazonas, al este de la Amazonía. Métodos: Los camarones fueron recolectados entre mayo 2017 y abril 2018, con la ayuda de matapis (trampa artesanal) en los municipios de Mazagão (Estado de Amapá) y Santarém (Estado de Pará), Brasil. Resultados: Se capturaron un total de 216 camarones parasitados con ectoparásitos, 133 de ellos en la región de Mazagão (53 P. pandalicola, 48 P. bithynis y 32 P. floridensis) y 83 en la región de Santarém (45 P. pandalicola y 38 P. bithynis). En Mazagão, los valores más altos de prevalencia se registraron en mayo (1.98 %) para P. floridensis, julio (2.18 %) para P. bithynis y marzo (1.93 %) para P. pandalicola. En la región de Santarém, los valores más altos de prevalencia se registraron en febrero, de 3.47 para P. pandalicola y 2.89 para P. bithynis. En cuanto a la abundancia de parásitos, no hubo diferencia entre las especies agrupadas entre las regiones (t = 0.32, p = 0.739). Los camarones parasitados de Mazagão y Santarém mostraron factores de condición por debajo de lo esperado, con un promedio de 0.85 ± 0.55 para Santarém y 0.88 ± 0.44 para Mazagão. Conclusiones: Durante el estudio, se encontró que P. pandalicola, P. bithynis y P. floridensis estuvieron presentes en M. Amazonicum todo el año. Además, hubo un efecto de parasitismo sobre M. Amazonicum en las áreas de estudio.

Abstract Objectives In the clinical routine of pediatricians, height is the most reliable indicator for assessing growth. However, there are situations where it is not possible to measure this parameter directly, making the estimation of height or length a useful alternative. The main goal of this study is to identify which segmental measure, including upper arm length (UAL), tibial length (TL), and knee-heel length (KHL), provides the stature estimate that most closely approximates directly measured height in the study participants. Methods Analytical cross-sectional study of the anthropometric and segmental measures of 248 participants, aged 0 to 14 years old, using Stevenson's and Kihara's equations to estimate indirectly measured height. Results The segmental measure that provided a measurement that deviated the least from the actual height was the KHL, followed by TL, both calculated using Stevenson's equations. Conclusion The use of segmental measures to infer a child's stature is valuable in clinical practice, particularly in bedridden and incapacitated patients. Based on the present findings, the KHL and TL segments yielded more accurate results than the UAL pediatricians growth However alternative UAL, , (UAL) (TL) kneeheel knee heel (KHL) participants crosssectional cross sectional 24 1 old Stevensons Stevenson s Kiharas Kihara childs child practice patients findings (UAL (TL (KHL 2