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A Reconfigurable Frequency Selective Surface for Wi-Fi Application
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Evangelista, Thamyris da Silva

; Mamedes, Deisy Formiga

; Silva, Jefferson Costa e

; Serres, Alexandre Jean René

; Gomes Neto, Alfredo

Journal of Microwaves, Optoelectronics and Electromagnetic Applications

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mar 2023, Volume 22 N. 1 Pages 33 - 46

Abstract: En | Text: En | PDF: En

Abstract This work presents the development of a reconfigurable frequency selective surface (RFSS) for application in the 2400-2483.5 MHz band, standard IEEE 802.11b/g/n (Wi-Fi). The proposed RFSS is based on the four-arms star geometry and PIN diodes were used as switching elements. In the initial design, numerical and measured results, especially for y polarization, PIN diode on-state, shown a difference of 15% for the resonant frequency. To overcome this drawback, a scaling factor was adopted and RFSS was redesigned and characterized, achieving the desired frequency response. The RFSS reconfigurability is confirmed, with a variation of at least 15 dB, when switching the states of the PIN diode. Moreover, the signal strength was measured directly on a notebook, confirming the reconfiguration of the RFSS. Finally, for the y polarization, it was found that for this polarization the frequency response remains virtually unchanged, even for angles of incidence up to 45°. In addition to the Wi-Fi signal control, the observed features make the developed RFSS especially attractive for reconfigurable antennas applications.

https://doi.org/10.1590/2179-10742023v22i1260442

Absorb/Transmit Broadband Type Frequency Selective Surface
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G. P. Neto, José Jaime

; Campos, Antonio Luiz P. S.

; Lira, Ruann Victor de A.

; Gomes Neto, Alfredo

; Silva, Maurício W. B.

Journal of Microwaves, Optoelectronics and Electromagnetic Applications

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mar 2023, Volume 22 N. 1 Pages 1 - 12

Abstract: En | Text: En | PDF: En

Abstract Frequency Selective Surfaces (FSS) are increasingly being used in telecommunications systems due to the numerous advantages presented by this sort of structure, among them low cost, ease of fabrication, and low profile stand out. This work reports the design, fabrication, and characterization of a multilayer frequency-selective absorber (FSA) for broadband operation. The proposed structure shows an absorption performance (operating in the frequency range between 2 GHz and 6 GHz) within the transmission band. The absorber consists of cascaded frequency selective surfaces, which are composed of both conductive square loops, which reflect incident signals, and resistive ones, which act as an absorbing layer. To verify the absorbing structure performance, full-wave numerical simulations and measurements are presented. The measured results are in good agreement with the numerical ones and show that the design performs absorption above 80% within the range of 2.48 GHz to 6.13 GHz, which verifies the project properties. Besides that, numerical results show that the proposed absorber has a proper response under oblique incidence up to 30°.

https://doi.org/10.1590/2179-10742023v22i1268430

Parental body mass index and maternal gestational weight gain associations with offspring body composition in young women from the Nutritionists’ Health Study
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Freitas, Renata Germano Borges de Oliveira Nascimento

; Vasques, Ana Carolina Junqueira

; Ribeiro, Francieli Barreiro

; Solar, Isabela

; Hanada, Alfredo Shigueo

; Barbosa, Marina Gomes

; Valente, Angélica Marques Martins

; Pititto, Bianca de Almeida

; Eshriqui, Ilana

; Lopes, Tito Lívio da Cunha

; Geloneze, Bruno

; Ferreira, Sandra Roberta Gouvea

Archives of Endocrinology and Metabolism

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feb 2023, Volume 67 N. 1 Pages 101 - 110

Abstract: En | Text: En | PDF: En

ABSTRACT Objective: Intrauterine environment can induce fetal metabolic programming that predisposes to adiposity-related chronic diseases in its lifespan. We examined the associations of parental nutritional status and gestational weight gain with offspring body composition in early adulthood. Materials and methods: This is cross-sectional analysis of female participants of the NutriHS who were submitted to questionnaires, clinical examinations and body composition assessed by DXA. Association of pre-conception parental BMI and maternal gestational weight gain (exposures) with body composition measurements (outcomes) were analyzed using multiple linear models adjusted for Directed Acyclic Graphs-based covariables (maternal and paternal educational level, maternal age, and tobacco, alcohol and/or drugs use). The sample included 124 women (median 28 (24-31) years) with a mean BMI of 25.4 ± 4.7 kg/m2. Results: No association between previous paternal BMI and offspring’s body composition was detected. In the fully adjusted linear regression model, maternal BMI was associated with offspring’s total lean mass (β = 0.66, p = 0.001), appendicular skeletal muscle mass index (ASMI) (β = 0.11, p = 0.003) and fat mass index (FMI) (β = 0.03, p = 0.039). Gestational weight gain was associated with increased offspring’s BMI (OR 1.12 [95% CI 1.02-1.20], p = 0.01). The linear regression model adjusted for maternal age and maternal and paternal education levels showed associations of gestational weight gain with offspring’s ASMI (β = 0.42, p = 0.046), FMI (β = 0.22, p = 0.005) and android-to-gynoid fat ratio (β = 0.09, p = 0.035). Conclusion: Our findings suggest that preconception maternal BMI could influence lean mass and general adiposity of young adult female offspring and that gestational weight gain could be useful for predicting centrally distributed adiposity.

https://doi.org/10.20945/2359-3997000000516

Modelo alternativo para o treinamento de técnicas de microssuturas em “patch” de pericárdio bovino
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CUNICO, CAROLINE

; ROSA, ISABELLA DE OLIVEIRA

; FREITAS, RENATO DA SILVA

; SILVA, ALFREDO BENJAMIM DUARTE DA

; MATIAS, JORGE EDUARDO FOUTO

; GOMES, HEITOR FRANCISCO CARVALHO

; FERREIRA, LYDIA MASAKO

Revista Brasileira de Cirurgia Plástica

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2023, Volume 38 N. 4 elocation e0803

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

■ abstract Introduction: Microsurgical techniques are characterized by the application of maneuvers and sutures to millimetric structures with the aid of magnifying lenses. These are complex techniques, used in various medical specialties, which require great skill and training before applying them to humans. The objective is to develop a low-cost and high-fidelity model for training microsurgery techniques using a fragment of bovine pericardium patch. Method: Remaining segments of a bovine pericardium plate, previously used in vascular repairs, are used to create this model. The material is cut into two symmetrical parts, and its ends are fixed to the surgical drapes with the aid of clamps. The upper edge of each part is then sutured to the lower edge with 8-0 Prolene thread so that each one forms a tubular structure. Subsequently, the free tubular ends undergo dissection of the adventitial layer and are sutured together, mimicking an end-to-end vascular anastomosis. Results: With the model, the same inconveniences/difficulties present in human vascular sutures are simulated, such as delamination of layers, excess of the adventitial layer, and risk of inadvertent suturing of the posterior wall, proving its usefulness in the acquisition of basic microsurgical skills, without need to manipulate human or animal tissues. Practice in this model can take place within the surgical center itself and uses materials that would otherwise be discarded. Conclusion: The use of bovine pericardium to create millimetric sutures mimics human vascular tissue and is a low-cost procedure that allows the training of microsurgical skills.

■ RESUMO Introdução: As técnicas microcirúrgicas caracterizam-se pela aplicação de manobras e suturas em estruturas milimétricas com o auxílio de lentes de aumento. São técnicas complexas, utilizadas em diversas especialidades médicas, que demandam grande habilidade e treinamento antes da aplicação em humanos. O objetivo é desenvolver um modelo de baixo custo e alta fidelidade, para o treinamento de técnicas de microcirurgia, utilizando um fragmento de patch de pericárdio bovino. Método: São utilizados para a confecção deste modelo segmentos remanescentes de uma placa de pericárdio bovino, previamente utilizado em reparos vasculares. O material é recortado em duas partes simétricas e suas extremidades fixadas aos campos cirúrgicos, com auxílio de clamps. A borda superior de cada uma das partes é, então, suturada à borda inferior com fio de Prolene 8-0, de maneira que cada uma forme uma estrutura tubular. Posteriormente, as extremidades tubulares livres passam pela dissecção da camada adventícia e são suturadas entre si, mimetizando uma anastomose vascular término-terminal. Resultados: Com o modelo, simulam-se os mesmos inconvenientes/dificuldades presentes nas suturas vasculares humanas, como a delaminação de camadas, excesso da camada adventícia e risco de sutura inadvertida da parede posterior, provando sua utilidade na aquisição de habilidades microcirúrgicas básicas, sem necessidade de manipulação de tecidos humanos ou animais. A prática neste modelo pode ocorrer dentro do próprio centro cirúrgico e emprega materiais que seriam descartados. Conclusão: A utilização do pericárdio bovino para confecção de suturas milimétricas mimetiza o tecido vascular humano e é um procedimento de baixo custo, que possibilita o treinamento de habilidades microcirúrgicas.

https://doi.org/10.5935/2177-1235.2023rbcp0803-pt

Comparative study of the levonorgestrel intrauterine system and laparoscopic hysterectomy for the treatment of heavy menstrual bleeding in enlarged uteri
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Depes, Daniella De Batista

; Mata, Marcos Vinícius Maia da

; Pereira, Ana Maria Gomes

; Martins, João Alfredo

; Araújo, Maíta Poli de

; Lopes, Reginaldo Guedes Coelho

; Bella, Zsuzsanna Ilona Katalin de Jármy-Di

einstein (São Paulo)

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2023, Volume 21 elocation eAO0033

Abstract: En | Text: En | PDF: En

ABSTRACT Objective To evaluate the effectiveness of the levonorgestrel intrauterine system in the treatment of patients with heavy menstrual bleeding and an enlarged uterus and to compare satisfaction and its complications with hysterectomy. Methods This was a comparative cross-sectional observational study of women with heavy menstrual bleeding and an enlarged uterus. Sixty-two women were treated and followed up for four years. Insertion of the levonorgestrel intrauterine system was performed in Group 1, and laparoscopic hysterectomy was performed in Group 2. Results In Group 1 (n=31), 21 patients (67.7%) showed improvement in the bleeding pattern, and 11 patients (35.5%) had amenorrhea. Five patients (16.1%) remained with heavy bleeding and were considered to have experienced treatment failure. There were seven expulsions (22.6%); in five patients, bleeding remained heavy, but in two patients the bleeding returned to that of normal menstruation. No relationship was found between treatment failure and greater hysterometries (p=0.40) or greater uterine volumes (p=0.50), whereas expulsion was greater in uteri with smaller hysterometries (p=0.04). There were 13 (21%) complications, seven (53.8%) in the group that underwent insertion of the levonorgestrel intrauterine system (all were device expulsions), and six (46.2%) in the surgical group, which were the most severe ones (p=0.76). Regarding satisfaction, 12 patients (38.7%) were dissatisfied with the levonorgestrel intrauterine system and one (3.23%) was dissatisfied with the surgical treatment (p=0.00). Conclusion Treatment with the levonorgestrel intrauterine system in patients with heavy menstrual bleeding and an enlarged uterus was effective, and when compared with laparoscopic hysterectomy, it had a lower rate of satisfaction and the same rate of complications, although less severe.

https://doi.org/10.31744/einstein_journal/2023ao0033

Ethanol from maize hybrids in Brazil
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Eckert, Caroline Thaís

; Frigo, Elisandro Pires

; Albrecht, Leandro Paiola

; Albrecht, Alfredo Junior Paiola

; Silva, Andre Felipe Moreira

; Santos, Weslei Gomes dos

; Cesco, Victor José Salomão

; Dieter, Jonathan

; Piccin, Emanuele Scapin

Crop Breeding and Applied Biotechnology

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2023, Volume 23 N. 2 elocation e44732328

Abstract: En | Text: En | PDF: En

Abstract The aim was to investigate the differences between maize hybrids for their agronomic yield and their agro-energy potential. The study was conducted in Palotina and Assis Chateaubriand, Paraná, Brazil. The treatments were composed of 10 maize hybrids (DKB290 [non-GMO], DKB315, DKB340, DKB290, Formula, Defender, Status, 2B810, 30F53, BG7330), which were evaluated for grain moisture and yield, starch content, total soluble solids content, ethanol content in the juice and ethanol yield. The important factors for the result are related to grain yield and the quality of the harvested grains, and agronomic performance of these hybrids may differ according to each crop year. Hybrid 30F53 stood out positively for all variables. Hybrid DKB315 showed the highest ethanol yield and high grain yield, and insignificant grain quality was not enough to result in a decline in ethanol yield.

https://doi.org/10.1590/1984-70332023v23n2a20

Predominantly antibody deficiency: case report
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Morais, Louyse Jerônimo de

; Silva, Beatriz Brasileiro de Macedo

; Brito, Luís Alfredo Cezar

; Lemos, Luíza Alcântara Pontes de

; Lustosa, Matheus Soares

; Carneiro, Rafaela Ribeiro D’Azevedo

; Lima, Renata de Cerqueira Paes Correa

; Aragão, Tainá Gomes

; Nóbrega, Veriana Márcia da

Revista Brasileira de Saúde Materno Infantil

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2023, Volume 23 elocation e20220259

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

Abstract Objectives: present a case of Inborn errors of immunity (IEI) as a potential diagnosis in pediatric patients with recurrent infections. Description: male patient, 13 years old, since he was eight months old had recurrent diarrhea, sinusitis, otitis, abscesses and urinary tract infections. At the age of ten, he presented mastoiditis progressing to meningitis, he was admitted to a tertiary hospital, where an immunological evaluation was performed, which led to the diagnosis of Predominantly Antibody Deficiency (PAD), with suspected X-linked Agammaglobulinemia (XLA). Treatment was initiated with administration of intravenous gamma globulin 400 mg/kg every four weeks, with a significant improvement of the condition. Discussion: usually, the diagnosis of XLA tends to be made in the first three years of life. However, in this report, although the first manifestations started at eight months of age, there was a delay of ten years before starting the treatment. In fact, the diagnosis of children and adults with IEI can be delayed if healthcare professionals are unable to find the true cause of recurrent infections. Therefore, the relevance of considering such pathologies in the presence of risk signs is highlighted, as early diagnosis being essential in treating and preventing morbidities.

Resumo Objetivos: apresentar um caso de Erro Inato da Imunidade (EII) como diagnóstico em potencial de pacientes pediátricos com infecções de repetição. Descrição: paciente masculino, 13 anos, desde os oito meses de idade apresentou quadros repetidos de diarreias, sinusites, otites, abscessos e infecções do trato urinário; destacando-se a otite, sinusite e diarreia pela maior recorrência. Aos dez anos, quando apresentou mastoidite evoluindo para meningite, foi internado em um hospital terciário, onde foi realizada avaliação imunológica, a qual levou ao diagnóstico de Deficiência Predominantemente de Anticorpos (DPAs), tendo como suspeita a agamaglobulinemia ligada ao cromossomo X (ALX). Foi iniciado tratamento com administração de gamaglobulina endovenosa 400 mg/kg a cada quatro semanas, ocorrendo melhora significativa do quadro. Discussão: normalmente, o diagnóstico da ALX tende a ser feito nos primeiros três anos de vida. Neste relato, entretanto, embora as primeiras manifestações tenham iniciado aos oito meses de idade, ocorreu um atraso de dez anos até o início do tratamento. De fato, o diagnóstico de crianças e adultos com EII pode ser retardado se os profissionais de saúde não conseguirem encontrar a causa das infecções recorrentes. Destaca-se, portanto, a relevância de se considerar tais patologias na vigência de sinais de riscos, pois o diagnóstico precoce é fundamental para tratar e prevenir morbidades.

https://doi.org/10.1590/1806-9304202300000259-en

Is it safe to resume large scale in-person medical meetings?
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Gomes, Cristiano M.

; Souza, Julia Duarte de

; Anzolch, Karin M. J.

; Henriques, João Victor T.

; Nogueira, Lucas

; Pimentel, Eduardo

; Fernandes, Roni de C.

; Canalini, Alfredo F.

; Bessa Jr., José de

International braz j urol

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oct 2022, Volume 48 N. 5 Pages 857 - 863

Abstract: En | Text: En | PDF: En

https://doi.org/10.1590/s1677-5538.ibju.2022.0210

Diretriz da Sociedade Brasileira de Cardiologia sobre a Análise e Emissão de Laudos Eletrocardiográficos – 2022
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Samesima, Nelson

; God, Epotamenides Good

; Kruse, Jose Claudio Lupi

; Leal, Marcelo Garcia

; Pinho, Claudio

; França, Francisco Faustino de A. C.

; Pimenta, João

; Cardoso, Acácio Fernandes

; Paixão, Adail

; Fonseca, Alfredo

; Pérez-Riera, Andrés R.

; Ribeiro, Antonio Luiz Pinho

; Madaloso, Bruna Affonso

; Luna Filho, Bráulio

; Oliveira, Carlos Alberto Rodrigues de

; Grupi, César José

; Moreira, Dalmo Antonio Ribeiro

; Kaiser, Elisabeth

; Paixão, Gabriela Miana de Mattos

; Feitosa Filho, Gilson

; Pereira Filho, Horacio Gomes

; Grindler, José

; Aziz, José Luiz

; Molina, Marcos Sleiman

; Facin, Mirella

; Tobias, Nancy M. M. de Oliveira

; Oliveira, Patricia Alves de

; Sanches, Paulo César R.

; Teixeira, Ricardo Alkmin

; Atanes, Severiano Melo

; Pastore, Carlos Alberto

Arquivos Brasileiros de Cardiologia

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oct 2022, Volume 119 N. 4 Pages 638 - 680

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

https://doi.org/10.36660/abc.20220623

10.

Effect of forage aqueous extracts on Glycine max L. Merr., Zea mays L. and Bidens pilosa L.
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Costa Zonetti, Patricia da

; Dotto, Gabriela

; França de Carvalho, Terciliana Francielle

; Souza Bido, Graciene de

; Carvalho Gomes Corrêa, Rúbia

; Paiola Albrecht, Leandro

; Junior Paiola Albrecht, Alfredo

Revista de la Facultad de Ciencias Agrarias. Universidad Nacional de Cuyo

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jun 2022, Volume 54 N. 1 Pages 70 - 76

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Resumen El objetivo del presente estudio fue investigar la posible influencia de la alelopatía de los extractos acuosos de cultivos forrajeros, aislados o en consorcio, sobre rendimiento fisiológico de las semillas de soja [Glycine max (L.) Merr.] y de maíz (Zea mays L.), además de su fitotoxicidad en la hierba Bidens pilosa L. Se prepararon extractos acuosos a una concen tración del 5%. Los estudios con soja y maíz se llevaron a cabo humedeciendo los papeles de germinación correspondientes a los diferentes tratamientos y se realizaron dentro de los estándares de las Reglas de Análisis de Semillas de Brasil. Estudios con los extractos en las semillas de B. pilosa se llevaron a cabo en una cámara de tipo B.O.D. Se colocaron cincuenta semillas de malezas en caja gerbox conteniendo papel de filtro humedecido con los diferentes tratamientos en cinco repeticiones. El agua destilada se utilizó como control en todas las pruebas. Los extractos de Avena strigosa y Raphanus sativus L., cultivados tanto en forma aislada como en consorcio, aumentaron el porcentaje de germinación de semillas (%G) y la longitud de las plántulas de soja. Asimismo, los extractos de Pennisetum glaucum (L.) R.Br. y Crotalaria spectabilis Roth, cultivados aislados y en consorcio, proporcionaron ganancias en el %G de maíz. Además, todos los extractos evaluados suprimieron la germi nación y redujeron la velocidad del índice de germinación de la maleza en comparación con el control, siendo el extracto de R. sativus el que más redujo el % G de B. pilosa.

Abstract The aim of the present study was to investigate the potential allelopathic effects of isolated or intercropped aqueous forage extracts on the physiological performance of soybean [Glycine max (L.) Merr.] and corn (Zea mays L.) seeds, as well as their phytotoxicity to the weed species Bidens pilosa L. Aqueous extracts were prepared at a concentration of 5%, and the tests with soy and corn were conducted by wetting the germination papers with different treatments and performing procedures within the standards of the Brazilian Rules of Seed Analysis. Tests with the cover plant extracts on the seeds of B. pilosa used BOD-type repetitions. Fifty weed seeds were placed in a gerbox with filter paper moistened with the different treatments with five repetitions. Distilled water was used as the control in all tests. Extracts of Avena strigosa Schreb and Raphanus sativus L. (radish), cultivated individually and in combination, increased the seed germination percentage (%G) and the length of soybean seedlings. Similarly, extracts of Pennisetum glaucum (L.) R.Br and Crotalaria spectabilis Roth, in individual and combined cultivation, provided gains in corn %G. Furthermore, all tested extracts suppressed germination and decreased the speed of the germination index of the hairy beggarticks when compared to the control, with the radish extract showing the greater reduction effect on the %G of the weed plant B. pilosa.

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11.

Dental and Periodontal Conditions in Alcoholics from a Brazilian Recovery Centera
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Lírio Sossai, Lorena

; da Rocha Scalzer Lopes, Guilherme

; Barros Del-Piero, Lorrany

; da Penha Zago-Gomes, Maria

; Rezende Alvarenga Moulin, Stephanie

; Melo de Matos, Jefferson David

; Nomura Nakano, Leonardo Jiro

; Cabral Andrade, Valdir

; Bottino, Marco Antonio

; Gonçalves Guerra, Selva Maria

; Feitosa, Alfredo

International journal of odontostomatology

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jun 2022, Volume 16 N. 2 Pages 227 - 234

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

ABSTRACT: The aim of this study was to evaluate the dental and periodontal condition of alcohol-dependents from a Brazilian Recovery Center. Sixty male individuals (30 alcoholic and 30 non-alcoholic) and aged between 32 and 72 years old were clinically evaluated. Interviews, dental and periodontal clinical examinations were obtained from all participants. The Pearson Chi-Square Test and Exact Fisher test were used to compare categorical data. The t-Student’s test was adopted for non-categorical data. Multiple logistic regressions were used to evaluate the association of variables in the groups. The alcoholics were younger, consumed more tobacco, had lower frequency of tooth brushing and dental flossing, higher number of missing and decayed teeth, more residual root, and more teeth with presence of visible plaque index (OR = 0.5, 95 % Cl = 4.4 to 5.5), when compared to the non-alcoholics. Alcoholics at the Recovery Center performed poor oral hygiene, had higher number of sites with periodontal disease, and worse oral hygiene than non-alcoholic individuals. As regards professional follow-up, there was similarity between the groups evaluated.

RESUMEN: El objetivo de este estudio fue evaluar las condiciones dentales y periodontales de los alcohólicos de un Centro de Recuperación de Brasil. Sesenta hombres (30 alcohólicos y 30 no alcohólicos) y con edades comprendidas entre 32 y 72 años fueron evaluados clínicamente. Se obtuvieron entrevistas, exámenes clínicos dentales y periodontales de todos los participantes. La prueba de Chi-cuadrado de Pearson y la prueba exacta de Fisher se utilizaron para comparar datos categóricos. La prueba de t-Student se adoptó para datos no categóricos. Se utilizaron regresiones logísticas múltiples para evaluar la asociación de variables en los grupos. Los alcohólicos eran más jóvenes, consumían más tabaco, tenían menor frecuencia de cepillado dental y uso de hilo dental, mayor número de dientes perdidos y cariados, más raíz residual y más dientes con presencia de índice de placa visible (OR = 0,5, 95 % Cl = 4,4 a 5,5), en comparación con los no alcohólicos. Los alcohólicos en el Centro de Recuperación realizan una mala higiene bucal, tenían un mayor número de sitios con enfermedad periodontal y una peor higiene bucal que los no alcohólicos. En cuanto al seguimiento profesional, hubo similitud entre los grupos evaluados.

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12.

A Defected Ground Structure Based on Matryoshka Geometry
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Gomes Neto, Alfredo

; Silva, Jefferson Costa e

; Coutinho, Ianes Barbosa Grécia

; Camilo Filho, Saulo Souto

; Santos, Danila Araújo

; Albuquerque, Bruno Lima Cavalcanti de

Journal of Microwaves, Optoelectronics and Electromagnetic Applications

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jun 2022, Volume 21 N. 2 Pages 284 - 293

Abstract: En | Text: En | PDF: En

Abstract A Defected Ground Structure, DGS, based on matryoshka geometry is described in this paper. The proposed DGS geometry is outlined and initial design equations are presented. Four prototypes, with resonant frequencies 2.17 GHz, 2.44 GHz, 2.99 GHz and 3.73 GHz, were designed, fabricated and characterized, observing a good agreement between measured and numerical results. Also, the obtained results demonstrated the initial design equations usefulness. The resonant behavior was analyzed in terms of the current density and it is possible to observe the current density blocked at the resonant frequency. When compared with dumbbell DGS, a reduction in the resonant frequency up to 47.19% is achieved, confirming the matryoshka geometry miniaturization properties. Furthermore, still comparing with dumbbell geometry, DGS based on matryoshka geometry are more selective.

https://doi.org/10.1590/2179-10742022v21i2256115

13.

[SciELO Preprints] - Leaf anatomy and photosynthetic parameters of Vellozia squamata Pohl (Velloziaceae) grown under different light intensities along in vitro cultivation
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Calazans Júnior, Elson Rangel Silveira, Conceição Eneida dos Santos Freitas-Neto, Olegário Garcia de Palhares, Dario Pereira, Luiz Alfredo Rodrigues Gomes, Sueli Maria

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Publication date: 2022-01-28

Abstract: En Pt

The present work evaluates photosynthetic parameters and the leaf anatomy of plants of Vellozia squamata Pohl (Velloziaceae) in each phase of in vitro production, with wild plants serving as a control. The anatomical approach was done for the leaf middle portion. The photosynthetic curves were obtained with an infra-red gas analyzer. The in vitro plantlets showed the thinner and poorest developed leaves, the wild plants had the thickest and most developed leaves, and the plants in acclimatization showed intermediate features. The physiological pattern was similar, and the in vitro plantlets were not capable of net carbon absorption. The young seedlings at the garden showed a maximal net carbon assimilation rate inferior to the wild plants. In conclusion, the light intensity for the in vitro phase should be adjusted to produce seedlings.

O presente trabalho avalia parâmetros fotossintéticos e a anatomia foliar de Vellozia squamata Pohl (Velloziaceae) em cada etapa da produção in vitro, sendo as plantas silvestres o grupo-controle. A abordagem anatômica foi feita para a porção mediana foliar. As curvas fotossintéticas foram obtidas com analisador de gases por infravermelho. As plântulas in vitro apresentaram folhas mais delgadas e menos desenvolvidas, as silvestres apresentaram folhas mais espessas e desenvolvidas e aquelas em aclimatação exibiram características intermediárias. As plântulas in vitro não foram capazes de absorção líquida de carbono. As plântulas jovens de casa-de-vegetação exibiram taxa líquida de assimilação de carbono inferior às selvagens. Em conclusão, para o cultivo in vitro as intensidades luminosas para a produção de mudas devem ser melhor ajustadas.

https://doi.org/10.1590/2236-8906-109/2020

14.

INSECT-RESISTANT MAIZE HYBRIDS TOLERANT TO GLUFOSINATE DUE TO THE pat GENE, UNDER DIFFERENT GLUFOSINATE RATES
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Paiola Albrecht, Alfredo Junior

; Paiola Albrecht, Leandro

; Larini, Willian Felipe

; Moreira Silva, André Felipe

; Gomes Cadamuro Galvão, Fernanda

; Rossano dos Santos, Guilherme

; Katakura, Marcelo

Chilean journal of agricultural & animal sciences

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2022, Volume 38 N. 1 Pages 42 - 51

Abstract: En | Text: En | PDF: En

ABSTRACT The use of glufosinate may have different effects on maize, with greater symptoms of injury for technologies with lower expression of the pat gene. As tolerance may vary with technology, it is important to investigate the selectivity of glufosinate in maize hybrids with the pat gene (resistant to insects). The objective of this study was to evaluate the selectivity of glufosinate rates applied in post-emergence, in insect-resistant transgenic maize with the pat gene. The experiment was carried out in Palotina, state of Paraná, Brazil, in 2020. A randomized block design with a factorial scheme (9x4) was used. The treatments were 9 maize hybrids and 4 glufosinate rates (0, 500, 700 and 1,000 g of active ingredient [ai] ha-1). Injury symptoms, plant height, 1,000-grain mass and yield were evaluated. The results showed that injury increases with increasing glufosinate rates. For plant height and 1,000-grain mass, a significant effect was detected only for hybrids, while there was no effect on yield, even at the highest rates. Glufosinate was selective for insect-resistant maize hybrids with the pat gene, up to the rate of 1,000 g ai ha-1, presenting initial injuries and some differences between maize hybrids. However, there was no impact on yield.

https://doi.org/10.29393/chjaas38-4iram70004 7 downloads

15.

Association between Big Five personality factors and medication adherence in the elderly
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Linkievicz, Natascha Melo

; Sgnaolin, Vanessa

; Engroff, Paula

; Behr Gomes Jardim, Gabriel

; Cataldo Neto, Alfredo

Trends in Psychiatry and Psychotherapy

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2022, Volume 44 elocation e20200143

Abstract: En | Text: En | PDF: En

Abstract Introduction Adherence to medications can be associated with circumstances related to the patient, with the pathology, with cultural health beliefs, with habits, and with quality of life. Behavioral patterns can also directly influence a patient’s pharmacological adherence, since they are related to their perception and understanding of their own health status and of their drug and non-drug treatments. Objective To investigate the association between adherence to pharmacological treatment and personality factors, sociodemographic variables, and economic data in the elderly. Methods Cross-sectional descriptive study. The population studied were elderly people registered with the Family Health Strategy of Porto Alegre and enrolled on the Brain Aging Program (PENCE), from March 2013 to November 2015. Sociodemographic data, pharmacological adherence, and personality traits were evaluated. Exclusion criteria were incomplete data in the personality and pharmacological adherence assessments; cognitive impairment, evaluated using the instrument Mini-Mental State Examination (MMSE), or not having carried out this assessment. Results A total of 123 individuals were included with a mean age of 71.35±7.33 years, 58.6% of whom reported some level of non-adherence to their medication regime (low and moderate adherence). Elderly people with low adherence had significantly higher mean scores in the Neuroticism factor, while those with high adherence had significantly higher mean scores in the Agreeableness and Conscientiousness factors. Conclusion The study suggests that pharmacological adherence among the elderly is negatively associated with the Neuroticism personality trait, while the Agreeableness and Conscientiousness traits are positively associated.

https://doi.org/10.47626/2237-6089-2020-0143

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