Pesquisa | SciELO

Abstract Objective: To assess factors associated with emotional changes and Hyperactivity/Inattention (HI) motivated by COVID-19 quarantine in adolescents with immunocompromising diseases. Methods: A cross-sectional study included 343 adolescents with immunocompromising diseases and 108 healthy adolescents. Online questionnaires were answered including socio-demographic data and self-rated healthcare routine during COVID-19 quarantine and validated surveys: Strengths and Difficulties Questionnaire (SDQ), Pittsburgh Sleep Quality Index (PSQI), Pediatric Quality of Life Inventory 4.0 (PedsQL4.0). Results: The frequencies of abnormal emotional SDQ scores from adolescents with chronic diseases were similar to those of healthy subjects (110/343 [32%] vs. 38/108 [35%], p = 0.548), as well as abnormal hyperactivity/inattention SDQ scores (79/343 [23%] vs. 29/108 [27%], p = 0.417). Logistic regression analysis of independent variables associated with abnormal emotional scores from adolescents with chronic diseases showed: female sex (Odds Ratio [OR = 3.76]; 95% Confidence Interval (95% CI) 2.00–7.05; p < 0.001), poor sleep quality (OR = 2.05; 95% CI 1.08–3.88; p = 0.028) and intrafamilial violence during pandemic (OR = 2.17; 95% CI 1.12–4.19; p = 0.021) as independently associated with abnormal emotional scores, whereas total PedsQL score was inversely associated with abnormal emotional scores (OR = 0.95; 95% CI 0.93–0.96; p < 0.0001). Logistic regression analysis associated with abnormal HI scores from patients evidenced that total PedsQL score (OR = 0.97; 95% CI 0.95–0.99; p = 0.010], changes in medical appointments during the pandemic (OR = 0.39; 95% CI 0.19–0.79; p = 0.021), and reliable COVID-19 information (OR = 0.35; 95% CI 0.16–0.77; p = 0.026) remained inversely associated with abnormal HI scores. Conclusion: The present study showed emotional and HI disturbances in adolescents with chronic immunosuppressive diseases during the COVID-19 pandemic. It reinforces the need to promptly implement a longitudinal program to protect the mental health of adolescents with and without chronic illnesses during future pandemics.

https://doi.org/10.1016/j.clinsp.2023.100167

Analysis of the Influence Of Friction Stir Welding on the Microstructure and Mechanical Properties of Alloy UNS-C27200 (CU-ZN)
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Rosa, Renato F.

; Almeida, Italo O.

; Varasquim, Francisco M. F. A.

; Junior, Eli J. C.

; Couto, Antônio A.

; Santos, Vinicius T.

; Silva, Márcio R.

; Nakamoto, Francisco Y.

; Santos, Givanildo A.

Materials Research

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2023, Volume 26 Supl. 1 elocation e20220581

Resumo: En | Texto: En | PDF: En

The copper alloy UNS-C27200 is a binary brass, composed of 38wt%Zn, beeing one of the most used in the industry. The union of Cu-Zn alloys by conventional welding by fusion in thin plates presents several challenges. The Friction Stir Welding (FSW) process performs the union of two, or more materials, through a rotating tool that travels throughout the welding region. One the great advantages of FSW is working below the melting point of the material, which reduces the change in the microstructure and properties of the material, when compared to conventional welding processes. Due to the lack of research on FSW process in lap brass joints with thin thicknesses, the present work aims to expand these studies in order to contribute to future research. Eight conditions were evaluated, varying rotation and welding speed. In the best results by visual inspection, analyzes of microstructure, temperature, microhardness and mechanical strength were performed. The better welding results were obtained with ω=1050 rpm and ν=20 mm/min. There was reduction of approximately 50% between Stir Zone and Base metal. The mechanical strength was affected by the pin hole resulting from the process. The microstructure revealed a homogeneous mixture in the stir zone and no defects were detected.

https://doi.org/10.1590/1980-5373-mr-2022-0581

Silicon as an attenuator of the toxic effects of aluminum in Schinus terebinthifolius plants
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Aguilar, M. V. M.

; Mattos, J. P. O.

; Wertonge, G. S.

; Rosa, F. C. R.

; Lovato, L. R.

; Valsoler, D. V.

; Azevedo, T. D.

; Nicoloso, F. T.

; Tabaldi, L. A.

Brazilian Journal of Biology

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2023, Volume 83 elocation e271301

Resumo: En Pt | Texto: En Pt | PDF: En | PDF: Pt

Abstract Aluminum (Al) is highly toxic to plants, since it causes stress and inhibits plant growth. Silicon (Si) is known to mitigate the stress caused by Al in several plant species. Thus, the current study aims to investigate the soothing effects of Si on morphophysiological and photosynthetic variables, and the attributes associated with oxidative stress in Schinus terebinthifolius plants exposed to Al. Treatments have followed a completely randomized design, with three repetitions based on the following Al/Si combinations (in mM): Treatment 1: 0 Al + 0 Si; Treatment 2: 0 Al + 2.5 Si; Treatment 3: 1.85 Al + 0 Si; Treatment 4: 1.85 Al + 2.5 Si; Treatment 5: 3.71 Al + 0 Si; Treatment 6: 3.71 Al + 2.5 Si. Each sampling unit consisted of a tray with 15 plants, totaling forty-five per treatment. Shoot and root morphological variables, photosynthetic variables, photosynthetic pigments, hydrogen peroxide concentration, lipid peroxidation (MDA), guaiacol peroxidase (POD) and superoxide dismutase (SOD) enzymes, and non-enzymatic antioxidant such as Ascorbic acid (AsA) and non-protein thiol (NPSH) concentration were assessed. Root growth inhibition followed by changes in root morphological variables have negatively affected root and shoot biomass production in plants only subjected to Al. However, adding 2.5 mM Si to the treatment has mitigated the toxic effects caused by 1.85 mM of aluminum on S. terebinthifolius plants.

Resumo O alumínio (Al) é altamente tóxico para as plantas, pois causa estresse e inibe o crescimento vegetal. O silício (Si) é conhecido por atenuar o estresse causado pelo Al em diversas espécies vegetais. Assim, o presente estudo tem como objetivo investigar os efeitos suavizantes do Si sobre variáveis morfofisiológicas e fotossintéticas, e os atributos associados ao estresse oxidativo em plantas de Schinus terebinthifolius expostas ao Al. Os tratamentos seguiram um delineamento inteiramente casualizado, com três repetições baseadas nas seguintes combinações Al/Si (em mM): Tratamento 1: 0 Al + 0 Si; Tratamento 2: 0 Al + 2,5 Si; Tratamento 3: 1,85 Al + 0 Si; Tratamento 4: 1,85 Al + 2,5 Si; Tratamento 5: 3,71 Al + 0 Si; Tratamento 6: 3,71 Al + 2,5 Si. Cada unidade amostral constou de uma bandeja com 15 plantas, totalizando quarenta e cinco plantas por tratamento. Variáveis morfológicas da parte aérea e da raiz, variáveis fotossintéticas, pigmentos fotossintéticos, concentração de peróxido de hidrogênio, peroxidação lipídica (MDA), enzimas guaiacol peroxidase (POD) e superóxido dismutase (SOD) e antioxidantes não enzimáticos como ácido ascórbico (AsA) e grupos tiós não protéicos (NPSH) foram avaliadas. A inibição do crescimento radicular seguida de alterações nas variáveis morfológicas radiculares afetaram negativamente a produção de biomassa radicular e aérea em plantas submetidas apenas ao Al. No entanto, a adição de 2,5 mM de Si ao tratamento atenuou os efeitos tóxicos causados por 1,85 mM de alumínio em plantas de S. terebinthifolius.

https://doi.org/10.1590/1519-6984.271301

Marcadores moleculares subrogados a la repelencia al agua en suelos afectados por el fuego
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Jiménez-Morillo, Nicasio T.

; Almendros, Gonzalo

; Guiomar, Nuno

; Miller, Ana Z.

; Barrocas-Dias, Cristina

; Rosa, José M. de la

; Hatcher, Patrick G.

; González-Pérez, José A.

Revista de Ciências Agrárias

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Dez 2022, Volume 45 Nº 4 Páginas 831 - 840

Resumo: Es En | Texto: Es En | PDF: Es | PDF: En

Resumen La repelencia al agua del suelo (RAS) se atribuye a la acumulación de compuestos hidrofóbicos (lípidos), pero su extracción no siempre elimina la RAS, lo que sugiere que componentes macromoleculares no extraíbles también pueden estar relacionados con una RAS. Se han estudiado suelos quemados (B) y control (UB) del Parque Nacional de Doñana (Huelva, España) bajo dos tipos de vegetación (alcornoque y brezo) y fracciones de suelo: gruesa (1-2 mm) y fina (<0.05 mm). La composición molecular de la materia orgánica del suelo (MOS) se analizó mediante espectrometría de masas de ultra-alta resolución. Además, se empleó la regresión por mínimos cuadrados parciales (PLS) para explorar la relación entre la RAS y la MOS definida por la abundancia de los 1221 compuestos orgánicos comunes. También se utilizaron índices para obtener gráficas que faciliten la identificación de biomarcadores de la RAS. En los suelos quemados, la RAS estaba significativamente relacionada (P<0.05) con compuestos aromáticos y condensados, mientras que, en los suelos control, la MOS incluía compuestos aromáticos y ligninas. En las fracciones finas, la RAS estuvo relacionada principalmente con lípidos, pero, no se encontró correlación en las fracciones gruesas. Los resultados permiten concluir que la hidrofobicidad depende de varias famílias de compuestos orgánicos. La combinación de la FT-ICR/MS con herramientas estadísticas ha facilitado la obtención de nuevos biomarcadores de RAS.

Abstract Soil water repellency (SWR) is often attributed to the accumulation of hydrophobic organic compounds, mainly lipids. Nonetheless, lipid extraction not always suppress SWR and unextractable soil constituents may be related with residual SWR. Burnt (B) and unburnt (UB) soils (Doñana National Park, Huelva) under two vegetations (cork oak and heather) and two soil fractions, coarse (1-2 mm) and fine (<0.05 mm) were studied. Soil organic matter (SOM) molecular composition was studied by ultra-high resolution mass spectrometry. Partial least squares regression (PLS) was employed to explore SWR in function the abundance of the 1221 common compounds found. An omic approach using various indices (e.g., factor loadings of PLS models, etc,) was applied to identify compounds which could be used as proxies for SWR. In the case of B soils, SWR was related (P< 0.05) to aromatic and condensed compounds, while in UB soils it relied mainly on aromatics and lignins. In the fine fractions, lipids were associated with SWR, and no correlation was found in the coarse fractions. In conclusion, hydrophobicity was related to lipids as expected, but also to lignin and aromatic components. The combination of FT-ICR/MS with graphical statistical approach was effective in finding molecular predictors of SWR.

https://doi.org/10.19084/rca.28639

Caracterización de semillas y plántulas de Zephyranthes bifida (Amaryllidaceae)
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Goyenetche, Juan M.

; Acosta, María C.

; Alcaraz, M. Luciana

; Manfreda, Vilma T.

; Scaramuzzino, Rosa L.

Boletín de la Sociedad Argentina de Botánica

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Dez 2022, Volume 57 Nº 4 Páginas 1 - 10

Resumo: Es | Texto: Es | PDF: Es

https://doi.org/10.31055/1851.2372.v57.n4.37812

Prevalencia e intensidad de tricodínidos y monogeneos en tilapia cultivada en el suroeste de México
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Osuna-Cabanillas, Juan M.

; Medina-Guerrero, Rosa M.

; Camacho-Zepeda, Selena

; Morales-Serna, Francisco N.

; Fajer-Ávila, Emma J.

Ecosistemas y recursos agropecuarios

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Ago 2022, Volume 9 Nº 2 elocation e3290

Resumo: En Es | Texto: En Es | PDF: En | PDF: Es

Abstract: Small-scale tilapia production contributes to sustainable rural development; however, it can be stagnated due to parasite diseases. This work aimed to determine the prevalence and intensity of infection of trichodinids and monogeneans on farmed tilapia in rural areas of Guerrero, Oaxaca and Chiapas, located in southwestern Mexico. A total of six trichodinid (Trichodina centrostrigeata, T compacta, T. heterodentata, T. magna, T. nigra y Trichodina sp.) and nine monogenean (Cichlidogyrus cirratus, C. dossoui, C. halli, C. mbirizei, C. sclerosus, C. thurstonae, C. tilapiae, Gyrodactylus cichlidarum y Scutogyrus longicornis) species were identified. The findings of C. mbirizei y C. cirratus represent new geographic records for Mexico. Trichodinid and monogenean infections occurred, respectively, at 73 and 93% of farms, distributed in coastal areas and mountain valleys. The prevalence of trichodinids was high (60-100%) in 30% of farms, whereas the median intensity was <10 trichodinids per fish. The prevalence of monogeneans was high and median intensities ranged between 1 and 30 at most farms. These results suggest that parasites can potentially occur everywhere; therefore, better management practices should be implemented to prevent parasite outbreaks.

Resumen: Las granjas pequeñas de tilapia contribuyen al desarrollo rural sostenible; pero los parásitos pueden afectar su productividad. El objetivo del presente estudio fue determinar la prevalencia e intensidad de tricodínidos y monogeneos en granjas de tilapia de Guerrero, Oaxaca y Chiapas. Se identificaron seis especies de tricodínidos: Trichodina centrostrigeata, T. compacta, T. heterodentata, T. magna, T nigra y Trichodina sp.; y nueve de monogeneos: Cichlidogyrus cirratus, C. dossoui, C. halli, C. mbirizei, C. sclerosus, C. thurstonae,C. tilapiae, Gyrodacty lus cichlidarum y Scutogyrus longicornis. Siendo los registros de C. mbirizei y C. cirratus nuevos para México. Los tricodínidos y monogeneos se presentaron, respectivamente, en 73 y 93% de las granjas muestreadas, tanto en regiones montañosas, valles y costas. La prevalencia de tricodínidos fue alta (60-100%) en 30% de las granjas, pero la intensidad mediana fue menor a 10 parásitos por pez. Mientras que la prevalencia de monogeneos fue alta en la mayoría de las granjas, pero la intensidad mediana fue baja (1 a 30). Estos resultados sugieren que los parásitos tienen el potencial de distribuirse en cualquier granja, por lo que las prácticas de manejo deben ser mejoradas y reducir así posibles brotes parasitarios que afecten la salud de los peces.

https://doi.org/10.19136/era.a9n2.3290

Infecciones respiratorias causadas por agentes bacterianos en bovinos y ovinos de la Provincia de Corrientes, Argentina
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Rosa, P. Della

; Sala, J. M.

; Morel, V.

; Gómez, S.

; Caspe, S. G.

Revista veterinaria

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Jun 2022, Volume 33 Nº 2 Páginas 164 - 168

Resumo: En Es | Texto: En Es | PDF: En | PDF: Es

Abstract Mannheimia haemolytica, Trueperella pyogenes and Pasteurella multocida are commensal bacteria of the upper respiratory tract of ruminants. However, in presence of predisposing factors, they can trigger the disease and even lead to death. The objective of this study was to determine the causes of morbidity and mortality in calves and lambs from 4 establishments located in the Province of Corrientes, Argentina. During of the period between June and August 2021, 4 cases of respiratory diseases were received at the INTA Mercedes, Corrientes, Animal Health Laboratory, both in cattle (3) and sheep (1). Incase of cattle, the morbidity in each the herd was 3.3% (5/150), 3.5% (7/200) and 12.4% (56/450). In the sheep flock, the morbidity was 8% (4/50). In sick animals, necropsies were performed and samples of lung and lung abscess were taken. In those samples, bacteriological culture and histological analysis were performed. Bacterial agents including T. pyogenes (1), M. haemolytica (2) and P. multocida (1) were detected, associated with the macroscopic findings and histological lesions. In our study, bacterial agents were detected as causing pneumonia represent in between 2 and 6% of mortality in the herds analyzed, so they should be considered as an important cause of death, in order to implement the necessary corrective and preventive measures.

Resumen Mannheimia haemolytica, Trueperella pyogenes y Pasteurella multocida son bacterias comensales de las vías respiratorias superiores de los rumiantes. Sin embargo, cuando existen factores predisponentes pueden desencadenar enfermedades respiratorias o incluso ocasionar la muerte. El objetivo de este estudio fue determinar las causas de morbilidad y mortalidad en terneros y corderos de 4 establecimientos ubicados en la Provincia de Corrientes, Argentina. Durante los meses de junio a agosto de 2021 se recibieron en el laboratorio de Sanidad Animal del INTA Mercedes, Corrientes, 4 casos de enfermedades respiratorias, tanto en bovinos (3), como en ovinos (1). En el caso de los bovinos, los lotes presentaban una morbilidad de 3,3% (5/150), 3,5% (7/200) y 12,4% (56/450). Por su parte, el lote de ovinos expuestos contó con un 8% (4/50) de animales enfermos. Se realizó la necropsia de los ejemplares, tomando muestras de pulmón y en los casos que estuvieron disponibles, abscesos pulmonares. Con dichas muestras, se realizó el cultivo bacteriológico y análisis histológico. Mediante el cultivo bacteriológico se detectó la acción de T. pyogenes (1), M. haemolytica (2) y P. multocida (1) coincidente con los hallazgos macroscópicos y lesiones histológicas halladas. En nuestro estudio las neumonías por agentes bacterianos representaron entre el 2 y 6% de las causas de mortalidad de los rodeos analizados, por lo que deberían ser tenidas en cuenta como causante de muerte, a fin de implementar las maniobras correctivas y preventivas necesarias.

https://doi.org/10.30972/vet.3326177

Doxazosin adsorption in natural, expanded, and organophilized vermiculite-rich clays
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Rosa, M. S. L.

; Silva, R. A. O.

; Sousa, P. A. A. e

; Nascimento, R. T. do

; Knoerzer, T.

; Santos, M. R. M. C.

Cerâmica

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Mar 2022, Volume 68 Nº 385 Páginas 75 - 83

Resumo: En | Texto: En | PDF: En

Abstract Vermiculite clays are adsorbent materials that have good chemical adsorption capacity, which makes them applicable in the removal of drugs from aqueous solutions. Their lamellar structure can be easily expanded and organophilized. To assess the efficacy and environmentally-tolerant capacity of the adsorption method, the organophilized vermiculite clay was compared to both natural and expanded vermiculite clays. To prepare the organophilized clays, a natural clay sample was expanded at 900 °C. The expanded clay was thus treated by immersion in a 1.0 M NaCl solution and organophilized using a cetyltrimethylammonium bromide (CTMA-Br) surfactant, for 24 h at 50 °C. Natural, expanded, and organophilized samples were characterized using the techniques of XRD, FTIR, TG/DSC, and SEM to observe structural changes after expansion and organophilization. These characterizations indicated that there was an increase in the interlamellar space of the expanded and organophilized sample. In addition, a study of the point of zero charge was performed to determine the surface changes of the samples and the amount of doxazosin adsorption in the samples was determined by the time adsorption test. Further, the organophilized sample showed potential adsorption of the drug doxazosin and high performance in relation to the expanded and natural samples.

https://doi.org/10.1590/0366-69132022683853175

Glacial meltwater input to the ocean around the Antarctic Peninsula: forcings and consequences
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LIMA, LUCIANA S.

; PEZZI, LUCIANO P.

; MATA, MAURÍCIO M.

; SANTINI, MARCELO F.

; CARVALHO, JONAS T.

; SUTIL, UESLEI ADRIANO

; CABRERA, MYLENE J.

; ROSA, ELIANA B.

; RODRIGUES, CELINA C.F.

; VEGA, XIMENA A.

Anais da Academia Brasileira de Ciências

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2022, Volume 94 Supl. 1 elocation e20210811

Resumo: En | Texto: En | PDF: En

Abstract The Antarctic region has experienced recent climate and environmental variations due to climate change, such as ice sheets and ice shelves loss, and changes in the production, extension, and thickness of sea-ice. These processes mainly affect the freshwater supply to the Southern Ocean and its water masses formation and export, being crucial to changes in the global climate. Here, we review the influence of the glacial freshwater input on the Antarctic Peninsula adjacent ocean. We highlight each climate process’ relevance on freshwater contribution to the sea and present a current overview of how these processes are being addressed and studied. The increase of freshwater input into the ocean carries several implications on climate, regionally and globally. Due to glacier melting, the intrusion of colder and lighter water into the ocean increases the stratification of the water column, influencing the sea-ice increase and reducing ocean-atmosphere exchanges, affecting the global water cycle. This study shows the role of each hydrological cycle processes and their contributions to the regional oceanography and potentially to climate.

https://doi.org/10.1590/0001-3765202220210811

10.

A 32-day long fieldwork in Antarctica improves heat tolerance during physical exercise
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MARTINS, YGOR A.T.

; PASSOS, RENATA L.F.

; MARQUES, ALICE L.

; GONÇALVES, DAWIT A.P.

; MENDES, THIAGO T.

; NÚÑEZ-ESPINOSA, CRISTIAN

; RODRIGUES, LUIZ O.C.

; WANNER, SAMUEL P.

; MORAES, MICHELE M.

; ARANTES, ROSA M.E.

; SOARES, DANUSA D.

Anais da Academia Brasileira de Ciências

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2022, Volume 94 Supl. 1 elocation e20210593

Resumo: En | Texto: En | PDF: En

Abstract We evaluated the influence of a 32-day camping in Antarctica on physical performance and exercise-induced thermoregulatory responses. In Brazil, before and after the Antarctic camping, the volunteers performed an incremental exercise at temperate conditions and, two days later, an exercise heat stress protocol (45-min running at 60% of maximum aerobic speed, at 31°C and 60% of relative humidity). In Antarctica, core temperature was assessed on a day of fieldwork, and average values higher than 38.5°C were reported. At pre- and post-Antarctica, physiological (whole-body and local sweat rate, number of active sweat glands, sweat gland output, core and skin temperatures) and perceptual (thermal comfort and sensation) variables were measured. The Antarctic camping improved the participants’ performance and induced heat-related adaptations, as evidenced by sweat redistribution (lower in the chest but higher in grouped data from the forehead, forearm, and thigh) and reduced skin temperatures in the forehead and chest during the exercise heat stress protocol. Notwithstanding the acclimatization, the participants did not report differences of the thermal sensation and comfort. In conclusion, staying in an Antarctic camp for 32 days improved physical performance and elicited physiological adaptations to heat due to the physical exertion-induced hyperthermia in the field.

https://doi.org/10.1590/0001-3765202220210593

11.

BIOLOGICAL NEMATICIDES ASSOCIATED WITH POULTRY LITTER IN THE CONTROL OF NEMATODES IN SOYBEAN AND SECOND CORN CROP
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ROSA, TAYRLEN EDUARDO AMORIM

; SOUZA, JEAN CRAMENAK DE

; PEREIRA, WELLINGTON JOSÉ

; MOREIRA, JANAINA ALVES DE ALMEIDA

; ARAÚJO, FERNANDO GODINHO DE

Revista Caatinga

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Set 2021, Volume 34 Nº 3 Páginas 580 - 589

Resumo: En Pt | Texto: En Pt | PDF: En | PDF: Pt

ABSTRACT Alternative management measures have been used to reduce nematode population levels in affected areas. In this perspective, the objective was to evaluate the efficiency of nematicides based on fungus and bacterium, associated with poultry litter applied via ground in the management of Pratylenchus brachyurus and Heterodera glycines in soybean and corn crops in succession. The experiment was conducted in the 2018/19 growing season in the municipality of Ipameri– GO (-17°34’55.58”S−48°12’02.35”O) in naturally infested field, arranged in a randomized block design, with 10 treatments and 4 replicates, being: T1- Witness/ control, T2- Poultry litter, T3- P. lilacinum + T. harzianum, T4- B. subtilis + B. licheniformis, T5- P. chlamydosporia, T6- Abamectina, T7- P. lilacinum + T. harzianum + Poultry litter, T8- B. subtilis + B. licheniformis + Poultry litter, T9- P. chlamydosporia + Poultry litter, T10- Abamectina + Poultry litter. The poultry litter was added in the soil 10 days before planting. The plots were composed of 6 lines of 6 m, with a spacing of 0.5 m. In the soybean crop at 45 and 90 days after sowing (DAS), the fresh weight of the roots (MFR), nematological variables and productivity were evaluated. In corn, only nematological variables were evaluated at 60 DAS. The treatments using P. lilacinum + T. harzianum and B. subtillis + B. licheniformes increased the MFR and reduced the number of P. brachyurus and H. glycines at the root. P. chlamydosporia associated with poultry litter increased in productivity in soybean plants.

RESUMO Medidas alternativas de manejo têm sido utilizadas buscando reduzir níveis populacionais de nematoides em áreas afetadas. Nesta ótica, objetivou-se avaliar a eficiência de nematicidas biológicos a base de fungos e bactérias, associados a cama de aviário aplicada via solo no manejo de Pratylenchus brachyurus e Heterodera glycines na cultura da soja e milho em sucessão. O experimento foi conduzido na safra 2018/19 no município de Ipameri – GO (-17°34’55.58”S−48°12’02.35”O) em campo naturalmente infestado, disposto em delineamento de blocos casualizados, empregando 10 tratamentos e 4 repetições, sendo: T1- Testemunha, T2- Cama de frango, T3- P. lilacinum + T. harzianum, T4- B. subtilis + B. licheniformis, T5- P. chlamydosporia, T6- Abamectina, T7- P. lilacinum + T. harzianum + Cama de frango, T8- B. subtilis + B. licheniformis + Cama de frango, T9- P. chlamydosporia + Cama de frango, T10- Abamectina + Cama de frango. A cama de frango foi adicionada ao solo 10 dias antes do plantio. As parcelas foram compostas por 6 linhas de 6 m, com espaçamento de 0,5 m. Na cultura da soja aos 45 e 90 dias após a semeadura (DAS) avaliou-se a massa fresca das raízes (MFR), variáveis nematológicas e produtividade. No milho avaliou-se apenas as variáveis nematológicas aos 60 DAS. Os tratamentos empregando P. lilacinum + T. harzianum e B. subtillis + B. licheniformes elevaram a MFR e reduziram o número de P. brachurus e H. glycines na raiz. P. chlamydosporia associada a cama de frango promoveram incremento de produtividade em plantas de soja.

https://doi.org/10.1590/1983-21252021v34n309rc

12.

Magnetic and Mesoporous Silica-Niobia Material as Modifier of Carbon Paste Electrode for p-Nitrophenol Electrochemical Determination
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Tkachenko, Oleg

; Rosa, Danielle S. da

; Virgili, Anike H.

; Vasconcellos, Marcos A. Z.

; Costa, Tania M. H.

; Arenas, Leliz T.

; Deon, Monique

; Benvenutti, Edilson V.

; Menezes, Eliana W. de

Journal of the Brazilian Chemical Society

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Mar 2021, Volume 32 Nº 3 Páginas 609 - 617

Resumo: En | Texto: En | PDF: En

In the present work, the sol-gel synthesis method was employed as strategy to obtain a magnetic and mesoporous silica-niobia material. The planned synthesis was based on the hetero-condensation of niobium and silicon alkoxide precursors, in the presence of spherical magnetite particles. The resulting material presented interesting characteristics such as magnetism, large mesopores, in the range from 20 to 50 nm, and 68 m2 g-1 of surface area. These features allowed its use as modifier of carbon paste electrode for p-nitrophenol determination, since niobia has never been used in electrochemical sensors for the determination of nitrophenol compounds. By using differential pulse voltammetry technique, the electrode can be applied in a wide range of p-nitrophenol concentration, from 10 to 490 μmol L-1, with a limit of detection of 1.2 µmol L-1 and sensitivity up to 0.60 µA L µmol-1. The proposed electrode presented good sensitivity and selectivity and it was applied in real water samples.

https://doi.org/10.21577/0103-5053.20200215 167 downloads

13.

Poor Sleep quality and health-related quality of life impact in adolescents with and without chronic immunosuppressive conditions during COVID-19 quarantine
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Helito, Alberto C.

; Lindoso, Livia

; Sieczkowska, Sofia M.

; Astley, Camilla

; Queiroz, Ligia B.

; Rose, Natalia

; Santos, Claudia Renata P.

; Bolzan, Thalis

; Peralta, Rita María I.A.

; Franco, Ruth R.

; Cominato, Louise

; Pereira, Rosa Maria R.

; Tannuri, Uenis

; Campos, Lucia Maria A.

; Lourenço, Benito

; Toma, Ricardo K.

; Medeiros, Karina

; Watanabe, Andréia

; Grangeiro, Patricia Moreno

; Farhat, Sylvia C.

; Casella, Caio B.

; Polanczyk, Guilherme V.

; Gualano, Bruno

; Silva, Clovis A.

; Sallum, Adriana M. E.

; Iraha, Amanda Y.

; Ihara, Bianca P.

; Mazzolani, Bruna C.

; Martinez, Claudia A.

; Strabelli, Claudia A. A.

; Fonseca, Claudia B.

; Lima, Dandara C. C.

; Setoue, Debora N. D.

; Roz, Deborah F. P.

; Smaira, Fabiana I.

; Roschel, Hamilton

; Miyatani, Helena T.

; Marques, Isabela G.

; Oba, Jane

; Ferreira, Juliana C. O.

; Simon, Juliana R.

; Kozu, Katia

; Saccani, Ligia P.

; Martiniano, Lorena V. M.

; Miranda, Luana C. A.

; Silva, Luiz E. V.

; Laurentino, Moisés F.

; Aikawa, Nadia E.

; Sakita, Neusa K.

; Tanigava, Nicolas Y.

; Pereira, Paulo R. A.

; Palmeira, Patrícia

; Angelo, Simone S.

; Lavorato, Sofia S. M.

; Bernardes, Tamires M.

; Franco, Tathiane C.

; Viana, Vivianne S. L.

; Barros, Vera P. M. F. R.

; Zheng, Yingying

Clinics

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2021, Volume 76 elocation e3501

Resumo: En | Texto: En | PDF: En

OBJECTIVE: To assess the possible factors that influence sleep quality in adolescents with and without chronic immunosuppressive conditions quarantined during the coronavirus disease 2019 (COVID-19) pandemic. METHODS: This cross-sectional study included 305 adolescents with chronic immunocompromised conditions and 82 healthy adolescents. Online surveys were completed, which included questions on socio-demographic data and self-rated healthcare routine during COVID-19 quarantine and the following validated questionnaires: the Pittsburgh Sleep Quality Index (PSQI), Pediatric Quality of Life Inventory 4.0 (PedsQL4.0), and Pediatric Outcome Data Collection Instrument (PODCI). RESULTS: The median current age [14 (10-18) vs. 15 (10-18) years, p=0.847] and frequency of female sex (62% vs. 58%, p=0.571) were similar in adolescents with chronic conditions compared with healthy adolescents. The frequency of poor sleep quality was similar in both groups (38% vs. 48%, p=0.118). Logistic regression analysis, including both healthy adolescents and adolescents with chronic conditions (n=387), demonstrated that self-reported increase in screen time (odds ratio [OR] 3.0; 95% confidence interval [CI] 1.3-6.8; p=0.008) and intrafamilial violence report (OR 2.1; 95% CI 1.2-3.5; p=0.008) were independently associated with poor sleep quality in these adolescents. However, the PODCI global function score was associated with a lower OR for poor sleep quality (OR 0.97; 95% CI 0.94-0.99; p=0.001). Further logistic regression, including only adolescents with chronic conditions (n=305), demonstrated that self-reported increase in screen time (OR 3.1; 95% CI 1.4-6.8; p=0.006) and intrafamilial violence report (OR 2.0; 95% CI 1.2-3.4; p=0.011) remained independently associated with poor quality of sleep, whereas a lower PODCI global function score was associated with a lower OR for sleep quality (OR 0.96; 95% CI 0.94-0.98; p<0.001). CONCLUSION: Self-reported increases in screen time and intrafamilial violence report impacted sleep quality in both healthy adolescents and those with chronic conditions. Decreased health-related quality of life was observed in adolescents with poor sleep quality.

https://doi.org/10.6061/clinics/2021/e3501

14.

Persistent symptoms and decreased health-related quality of life after symptomatic pediatric COVID-19: A prospective study in a Latin American tertiary hospital
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Fink, Thais T.

; Marques, Heloisa H.S.

; Gualano, Bruno

; Lindoso, Livia

; Bain, Vera

; Astley, Camilla

; Martins, Fernanda

; Matheus, Denise

; Matsuo, Olivia M.

; Suguita, Priscila

; Trindade, Vitor

; Paula, Camila S.Y.

; Farhat, Sylvia C.L.

; Palmeira, Patricia

; Leal, Gabriela N.

; Suzuki, Lisa

; Odone Filho, Vicente

; Carneiro-Sampaio, Magda

; Duarte, Alberto José S.

; Antonangelo, Leila

; Batisttella, Linamara R.

; Polanczyk, Guilherme V.

; Pereira, Rosa Maria R.

; Carvalho, Carlos Roberto R.

; Buchpiguel, Carlos A.

; Latronico, Ana Claudia

; Seelaender, Marilia

; Silva, Clovis Artur

; Pereira, Maria Fernanda B.

; Sallum, Adriana M. E.

; Brentani, Alexandra V. M.

; Neto, Álvaro José S.

; Ihara, Amanda

; Santos, Andrea R.

; Canton, Ana Pinheiro M.

; Watanabe, Andreia

; Santos, Angélica C. dos

; Pastorino, Antonio C.

; Franco, Bernadette D. G. M.

; Caruzo, Bruna

; Ceneviva, Carina

; Martins, Carolina C. M. F.

; Prado, Danilo

; Abellan, Deipara M.

; Benatti, Fabiana B.

; Smaria, Fabiana

; Gonçalves, Fernanda T.

; Penteado, Fernando D.

; Castro, Gabriela S. F. de

; Gonçalves, Guilherme S.

; Roschel, Hamilton

; Disi, Ilana R.

; Marques, Isabela G.

; Castro, Inar A.

; Buscatti, Izabel M.

; Faiad, Jaline Z.

; Fiamoncini, Jarlei

; Rodrigues, Joaquim C.

; Carneiro, Jorge D. A.

; Paz, Jose A.

; Ferreira, Juliana C.

; Ferreira, Juliana C. O.

; Silva, Katia R.

; Bastos, Karina L. M.

; Kozu, Katia

; Cristofani, Lilian M.

; Souza, Lucas V. B.

; Campos, Lucia M. A.

; Silva Filho, Luiz Vicente R. F.

; Sapienza, Marcelo T.

; Lima, Marcos S.

; Garanito, Marlene P.

; Santos, Márcia F. A.

; Dorna, Mayra B.

; Aikawa, Nadia E.

; Litvinov, Nadia

; Sakita, Neusa K.

; Gaiolla, Paula V. V.

; Pasqualucci, Paula

; Toma, Ricardo K.

; Correa-Silva, Simone

; Sieczkowska, Sofia M.

; Imamura, Marta

; Forsait, Silvana

; Santos, Vera A.

; Zheng, Yingying

Clinics

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2021, Volume 76 elocation e3511

Resumo: En | Texto: En | PDF: En

OBJECTIVES: To prospectively evaluate demographic, anthropometric and health-related quality of life (HRQoL) in pediatric patients with laboratory-confirmed coronavirus disease 2019 (COVID-19) METHODS: This was a longitudinal observational study of surviving pediatric post-COVID-19 patients (n=53) and pediatric subjects without laboratory-confirmed COVID-19 included as controls (n=52) was performed. RESULTS: The median duration between COVID-19 diagnosis (n=53) and follow-up was 4.4 months (0.8-10.7). Twenty-three of 53 (43%) patients reported at least one persistent symptom at the longitudinal follow-up visit and 12/53 (23%) had long COVID-19, with at least one symptom lasting for >12 weeks. The most frequently reported symptoms at the longitudinal follow-up visit were headache (19%), severe recurrent headache (9%), tiredness (9%), dyspnea (8%), and concentration difficulty (4%). At the longitudinal follow-up visit, the frequencies of anemia (11% versus 0%, p=0.030), lymphopenia (42% versus 18%, p=0.020), C-reactive protein level of >30 mg/L (35% versus 0%, p=0.0001), and D-dimer level of >1000 ng/mL (43% versus 6%, p=0.0004) significantly reduced compared with baseline values. Chest X-ray abnormalities (11% versus 2%, p=0.178) and cardiac alterations on echocardiogram (33% versus 22%, p=0.462) were similar at both visits. Comparison of characteristic data between patients with COVID-19 at the longitudinal follow-up visit and controls showed similar age (p=0.962), proportion of male sex (p=0.907), ethnicity (p=0.566), family minimum monthly wage (p=0.664), body mass index (p=0.601), and pediatric pre-existing chronic conditions (p=1.000). The Pediatric Quality of Live Inventory 4.0 scores, median physical score (69 [0-100] versus 81 [34-100], p=0.012), and school score (60 [15-100] versus 70 [15-95], p=0.028) were significantly lower in pediatric patients with COVID-19 at the longitudinal follow-up visit than in controls. CONCLUSIONS: Pediatric patients with COVID-19 showed a longitudinal impact on HRQoL parameters, particularly in physical/school domains, reinforcing the need for a prospective multidisciplinary approach for these patients. These data highlight the importance of closer monitoring of children and adolescents by the clinical team after COVID-19.

https://doi.org/10.6061/clinics/2021/e3511

15.

Evaluation of Brazilian Monovarietal Extra Virgin Olive Oils Using Digital Images and Independent Component Analysis
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Gonçalves, Thays R.

; Rosa, Larissa N.

; Março, Paulo H.

; Silva, Luiz F. O. da

; Gomes, Sandra T. M.

; Matsushita, Makoto

; Valderrama, Patrícia

Journal of the Brazilian Chemical Society

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Set 2020, Volume 31 Nº 9 Páginas 1955 - 1963

Resumo: En | Texto: En | PDF: En

Digital images associated with chemometric tools, in a non-destructive approach, have been applied for the evaluation of the Brazilian monovarietal extra virgin olive oil. Independent component analysis (ICA) was employed in the image data evaluation of olive oils produced from distinctive olive varieties, and it was successful in highlighting the natural grouping among the samples based on the color histograms (red, green and blue (RGB) channels). The study’s proposal indicates the ability of accurate separation of the twenty-four samples considering their color. To conclude and support the hypothesis, principal component analysis (PCA) was applied in the visible spectra of the Brazilian monovarietal extra virgin olive oil, to observe the similarities between the samples, and the results are in agreement with those obtained by image analysis coupled with ICA. This method demonstrates the possibility for the characterization of olive oils respecting the principles of Green Chemistry.

https://doi.org/10.21577/0103-5053.20200083 308 downloads

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