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au:XAVIER, MAURO ALEXANDRE

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Inattention symptoms in early pregnancy predict parenting skills and infant maltreatment during the first year of life
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Oliveira, Jordana Verano de

; Fatori, Daniel

; Shephard, Elizabeth

; Xavier Neto, Mauro

; Matijasevich, Alicia

; Ferraro, Alexandre Archanjo

; Rohde, Luis Augusto

; Chiesa, Anna Maria

; Miguel, Euripedes Constantino

; Polanczyk, Guilherme V.

Brazilian Journal of Psychiatry

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aug 2022, Volume 44 N. 4 Pages 388 - 400

Abstract: En | Text: En | PDF: En

Objective: Maternal attention-deficit/hyperactivity disorder has not been investigated in relation to parenting skills in adolescent mothers. This study investigated whether maternal inattention and hyperactivity/impulsivity symptoms early in pregnancy predict poorer parenting skills and infant maltreatment during the first year of life in adolescent mothers living in adverse environmental conditions. Methods: The participants in this study were 80 adolescent mothers aged 14-19 years and their babies who were taking part in a randomized controlled trial on the effects of a home-visiting program on infant development. Symptoms of maternal attention-deficit/hyperactivity disorder were assessed in the first trimester of pregnancy. Parenting skills (maternal competence, attachment to the baby, home environment) and child maltreatment were assessed when the infants were aged 6 and 12 months. Multilevel linear regression models were constructed to test the extent to which prenatal maternal inattention and hyperactivity/impulsivity symptoms predicted these parenting variables during the first year of the infant’s life. Results: Prenatal inattention symptoms significantly predicted lower maternal competence and attachment, a poorer home environment, and greater maltreatment during the first year of life. Hyperactivity did not significantly predict parenting skills or maltreatment. Conclusions: Our findings suggest that inattention symptoms may interfere with parenting abilities in adolescent mothers and should be considered in early intervention programs.

https://doi.org/10.47626/1516-4446-2021-2045

Unnecessarily prolonged suffering: a case of missed diagnosis of post-traumatic stress disorder in a teaching hospital
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Oliveira, Roseli de

; Mendlowicz, Mauro Vitor

; Berger, William

; Luz, Mariana Pires da

; Marques-Portella, Carla

; Figueira, Ivan

; Araújo, Alexandre Xavier Gomes de

Jornal Brasileiro de Psiquiatria

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sep 2021, Volume 70 N. 3 Pages 266 - 270

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

RESUMO Descrevemos o caso de um paciente gravemente traumatizado que estava em tratamento psiquiátrico há sete anos (cinco deles em uma clínica universitária de saúde mental), mas nunca foi diagnosticado com transtorno de estresse pós-traumático (TEPT) e, portanto, não recebeu o tratamento adequado por muito tempo. Após o diagnóstico correto e o tratamento personalizado instituído, o paciente mostrou melhora acentuada na funcionalidade e no bem-estar. O elemento-chave, neste caso, foi a adequação do treinamento psiquiátrico. Nosso relatório sugere que os psiquiatras não estão sendo treinados adequadamente para identificar eventos traumáticos e diagnosticar casos atípicos de TEPT. Com isso em mente, enfatizamos que os módulos teóricos sobre eventos traumáticos e transtornos relacionados ao trauma e treinamento prático em clínicas especializadas de TEPT devem ser incorporados aos programas de treinamento em residência psiquiátrica onde quer que ainda estejam ausentes, particularmente nos países mais afetados pela violência. Além disso, a educação médica continuada sobre trauma e TEPT deve ser fornecida por associações médicas e periódicos científicos para manter os médicos atualizados sobre os avanços recentes na área.

ABSTRACT We described a case in which a heavily-traumatized patient had been under psychiatric treatment for seven years (five of them in a university mental health clinic) but was never diagnosed with PTSD and, therefore, did not receive the proper treatment for a very long period. After the correct diagnosis was made and personalized treatment instituted, the patient has shown marked improvement in functionality and wellbeing. The key element in this case, was the adequacy of psychiatric training. Our report suggests that psychiatrists are not being adequately trained to identify traumatic events and to diagnose atypical cases of PTSD. With that in mind, we emphasize that theoretical modules on trauma and trauma-related disorders and practical training in specialized PTSD clinics should be incorporated into the psychiatric residency training programs wherever they may be missing, particularly in countries most impacted by violence. Furthermore, continuing medical education on trauma and PTSD should be provided by medical associations and journals to keep physicians updated on recent progress in the field.

https://doi.org/10.1590/0047-2085000000323 1 downloads

Sugarcane pre-sprouted seedlings produced with beneficial bacteria and arbuscular mycorrhizal fungi
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Rossetto, Lenise

; Pierangeli, Gabrielle Maria Fonseca

; Kuramae, Eiko Eurya

; Xavier, Mauro Alexandre

; Cipriano, Matheus Aparecido Pereira

; Silveira, Adriana Parada Dias da

Bragantia

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2021, Volume 80 elocation e2721

Abstract: En | Text: En | PDF: En

ABSTRACT The demand for the increased productivity of sugarcane crops has required changes in its production chain, such as the use of pre-sprouted seedlings (PSS) of sugarcane into the chain. In this system, the inoculation of beneficial microorganisms, such as plant growth-promoting bacteria (PGPB) and arbuscular mycorrhizal fungi (AMF), can improve seedling development. The objective was to evaluate the beneficial effect of PGPB and AMF inoculation on sugarcane PSS production system. Experiments were carried out in greenhouse using a commercial substrate with different levels of fertilization to evaluate the plant biomass and nutritional status. The bacteria strains are able to produce indole acetic acid and to amplify the nifH gene. The coinoculation of strains IAC-BeCa-095 with AMF (Glomus macrocarpum and Glomus etunicatum) improved the plant shoot biomass (25%) on the fertilized substrate. The strains IAC-BeCa-088 (Burkholderia caribensis), IAC-RBca5 (Pseudomonas sp.) and IAC-RBca10 (Bacillus sp.) without AMF and fertilization improved the shoot biomass by up to 35%. Coinoculation with strain IAC-BeCa-095 (Kosakonia radicincitans) and AMF improved the shoot and root biomass by up to 27 and 75%, respectively, in the conventionally fertilized substrate, demonstrating a synergistic effect of these microorganism consortia. The use of beneficial microorganisms may be a viable practice in the production of PSS sugarcane. Moreover, this study is the first to demonstrate the synergistic effect of endophytic bacteria (K. radicincitans) or rhizobacteria (Bacillus sp.) with AMF and Pseudomonas sp. or B. caribensis, without AMF inoculum on the production of sugarcane PSS to improve plant growth and plant nutrition.

https://doi.org/10.1590/1678-4499.20200276 297 downloads

The Jornal Brasileiro de Psiquiatria: A Bibliometric Survey of the one hundred most cited articles in the last 15 years
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Reis, Taylor

; Araújo, Alexandre Xavier

; Mendlowicz, Victoria

; Maia, Helena Garcia

; Oliveira, Ruth Pires

; Almeida, Rafael Queiroz Henriques

; da Luz, Mariana Pires

; Vilete, Liliane

; Berger, William

; Mendlowicz, Mauro Vitor

; Gekker, Márcio

Jornal Brasileiro de Psiquiatria

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2021, Volume 70 N. 4 Pages 302 - 310

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

RESUMO Objetivo: Bibliometria é um grupo de métodos estatísticos e matemáticos empregados para medir e analisar a quantidade e a qualidade de artigos científicos, livros e outras formas de publicações. O objetivo do presente estudo foi realizar uma análise bibliométrica do Jornal Brasileiro de Psiquiatria (JBP), relacionando seus 100 artigos mais citados na literatura científica e identificando suas principais características em termos de autoria e questões de pesquisa e delineamento experimental. Métodos: As 100 referências mais citadas no JBP foram identificadas por meio de uma busca no Google Scholar. Foram registradas e analisadas as seguintes informações: autor principal, último autor, autor correspondente, número total de autores, gênero dos autores, ano de publicação, instituição de pesquisa, origem geográfica e idioma de cada referência e seu tema de investigação e delineamento metodológico. Resultados: O aumento acentuado no número de citações nos últimos 15 anos, a boa distribuição das publicações entre os estados e centros de pesquisa brasileiros, a ausência de viés de gênero entre os autores e a variada gama de tópicos publicados sugerem um bom desempenho editorial atual do JBP. A relativa falta de revisões sistemáticas e estudos longitudinais, os poucos artigos publicados em inglês e a pequena participação de autores estrangeiros são pontos que requerem melhorias. Conclusão: O presente estudo sugere que o levantamento dos 100 artigos mais citados no JBP pode fornecer um panorama histórico da evolução dessa revista, bem como destacar os principais obstáculos, restrições e desafios enfrentados por seus editores e autores.

ABSTRACT Objective: Bibliometrics is a group of statistical and mathematical methods employed to measure and analyze the quantity and the quality of scientific articles, books, and other forms of publications. The objective of the present study was to conduct a bibliometric analysis of the Jornal Brasileiro de Psiquiatria (JBP) by listing its 100 most highly cited articles in the scientific literature and identifying their main characteristics in terms of authorship and research topics and design. Methods: The 100 top-cited references in the JBP were identified through a search with Google Scholar. The main author, last author, corresponding author, the total number of authors, gender of the authors, year of publication, research institution, geographic origin, language, and the research design and subject of each reference were recorded and analyzed. Results: A marked increase in the number of citations in the last 15 years, a relatively balanced distribution of publications among the Brazilian states and research centers, absence of gender bias among authors, and a varied range of published topics suggest a good current editorial performance by the JBP. Relative lack of systematic reviews and longitudinal studies, dearth of articles published in the English language, and modest participation of foreign authors were points requiring improvement. Conclusion: The present study suggests that a survey of the 100 most cited articles in the JBP can provide a historical overview of the progress of this journal, as well as highlight the main obstacles, constraints, and challenges faced by its editors and authors.

https://doi.org/10.1590/0047-2085000000350 1 downloads

Irrigation management based on reference evapotranspiration for pre-sprouted plantlets of sugarcane cultivars
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Ohashi, Augusto Yukitaka Pessinatti

; Pires, Regina Célia de Matos

; Xavier, Mauro Alexandre

; Perecin, Dilermando

; Silveira, Laís Karina

; Petri, Rômulo Henrique

Bragantia

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jun 2020, Volume 79 N. 2 Pages 293 - 304

Abstract: En | Text: En | PDF: En

ABSTRACT The pre-sprouted sugarcane plantlets (PSP) system aims the production of healthy and vigorous plants in reduced time, reducing the number of stalks needed for planting. Irrigation is used in all PSP system stages and water management plays an important role. Stage 1 acclimation follows the budding stage and lasts for approximately 21 days. At this stage the plantlets are grown within an agricultural greenhouse to improve initial development. The objectives of this trial were: to identify the irrigation management which results in highest plantlet growth; to evaluate if responses to irrigation management depends on the cultivar; to evaluate water consumption and water use efficiency at early stage under PSP system; and to assess the water management effect on substrate water matrix potential and stomatal conductance in the cultivar IACSP95-5000. The experimental design was a split-plot randomized block design with four replications. Treatments applied in the plots were different irrigation depths based on daily reference evapotranspiration (ETo): 96, 80, 64 and 48%, estimated by Penman–Monteith method. In the subplots, there were sugarcane cultivars IAC91-1099, IACSP95-5000 and IACSP97-4039. Irrigation management based on 80% ETo resulted in higher growth, dry mass accumulation and greater leaf area. Water use efficiency was not influenced by irrigation management. IAC91-1099 presented higher overall growth, leaf area and dry mass accumulation. Water consumption was cultivar-dependent in irrigation managements using 80 and 96% of ETo. Water use efficiency was higher in IAC91-1099 and lower in IACSP95-5000. Lower substrate water matrix potential reduced leaves stomatal conductance, impairing IACSP95-5000 plantlet growth.

https://doi.org/10.1590/1678-4499.20190288 815 downloads

Can horror movies induce PTSD-like syndrome?
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Araújo, Alexandre Xavier Gomes de

; Luz, Mariana Pires

; Berger, William

; Pagotto, Luiz Felipe

; Figueira, Ivan

; Mendlowicz, Mauro V.

Revista Latinoamericana de Psicopatologia Fundamental

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jun 2019, Volume 22 N. 2 Pages 360 - 375

Cet article décrit le cas d’une jeune fille de 10 ans qui a développé un syndrome qui ressemble à celui du stress post-traumatique (SSPT) après avoir regardé un film d’horreur. Six ans plus tard, la patiente présentait toujours les symptômes du SSPT correspondants aux critères du DSM-IV. La littérature scientifique a été examinée à la recherche de cas semblables et treize cas semblables ont été recensés. La présence des critères DSM-IV a été confirmée uniquement dans deux cas. Nous concluons que l’exposition à des films d’horreur peut déclencher un syndrome du type SSPT chez les personnes vulnérables.

We reported a case of a 10-year-old girl who developed a PTSD-like syndrome after watching a horror movie. After 6 years, the now 16-year-old patient still fulfilled the DSM-IV criteria for PTSD, except for the trauma itself. We reviewed the scientific literature for case reports of PTSD-like syndrome induced by horror movies and found 13 cases. In only two was the presence of the DSM criteria confirmed. Watching horror movies may thus trigger PTSD-like syndromes in vulnerable viewers

Dieser Artikel beschreibt den Fall eines 10-jährigen Mädchens, das ein PTBS-ähnliches Syndrom entwickelte, nachdem sie einen Horrorfilm angeschaut hatte. Sechs Jahre später zeigte die nun 16 Jahre alte Patientin nach wie vor PTBS Symptome auf, die den Kriterien des DSM-IV entsprachen. Wir forschten in der wissenschaftlichen Literatur nach Fallberichten des PTBS-ähnlichen Syndroms, die durch Horrorfilme induziert wurden und fanden 13 Fälle. In nur zwei Fällen wurden die DSM-IV-Kriterien bestätigt. Wir kommen zum Schluss, dass bei anfälligen Personen, die sich Horrorfilmen aussetzen, es zu PTBS-ähnlichen Syndromen kommen kann.

O caso de uma menina de 10 anos de idade que desenvolveu síndrome do tipo transtorno de estresse pós-traumático (TEPT) após assistir a filme de terror é relatado. Após seis anos, a paciente ainda preenchia os critérios do DSM-IV para TEPT. Em revisão da literatura, identificamos 13 casos de síndrome TEPT-símile induzida por filmes de terror, mas o diagnóstico baseado em critérios DSM foi feito em dois casos apenas. Filmes de terror podem desencadear síndromes TEPT-símile em pessoas vulneráveis.

Presentamos el caso de una niña de 10 años que desarrolló un síndrome tipo trastorno de estrés postraumático (TEPT) después de ver una película de terror. Al cabo de seis años, la paciente aún cumplía con los criterios del DSM-IV para el TEPT. Durante la revisión de la literatura, identificamos 13 casos de síndromes similares al TEPT, inducidos por películas de terror, pero el diagnóstico basado en los criterios DSM fue hecho solo en dos casos. Películas de terror pueden desencadenar síndromes similares al TEPT en espectadores vulnerables.

https://doi.org/10.1590/1415-4714.2019v22n2p360.11 7184 downloads

Seleção de famílias e progênies de irmãos completos de cana-de-açúcar para atributos tecnológicos e de produção pelo método de REML/BLUP
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Xavier, Mauro Alexandre

; Perecin, Dilermando

; Alvim, Karen Rodrigues de Toledo

; Landell, Marcos Guimarães de Andrade

; Arantes, Flávio Cese

Bragantia

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sep 2014, Volume 73 N. 3 Pages 253 - 262

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

O objetivo deste trabalho foi avaliar as famílias e destacar as progênies superiores de cana-de-açúcar oriundas de 38 cruzamentos biparentais para os seguintes atributos: tonelada de colmos por hectare (TCH), toneladas de biomassa por hectare (TBIOH), brix (% caldo da cana), teor de fibra, pureza, pol e açúcar total recuperável (ATR). Os dados foram analisados via modelos mistos REML/BLUP, em que o REML (Máxima Verossimilhança Restrita) permitiu estimar parâmetros genéticos e BLUP (Melhor Predição Linear Não Viciada) permitiu predizer os valores aditivos e genotípicos. A melhor família para os atributos TCH e TBIOH foi a 41, cujos parentais são as cultivares IACSP022019 x CTC9. Na seleção individual para TCH, a planta de n. 3 do bloco 2, do cruzamento 78 foi a que apresentou o melhor resultado. Para TBIOH, a planta n. 33, do bloco 1, da família 41 foi superior. As famílias 40, 41, 43, 68, 69, 79, 91, 92 e 147 foram superiores para as variáveis brix, pol, pureza e ATR, enquanto que as famílias 85, 147, 148, 149, 161, 163, 177, 178, 179 e 183 foram superiores para fibra. A família 147, cujos parentais são IACSP042286 x IACSP963055, mostrou três progênies entre as dez melhores tanto para brix quanto para fibra, o que identifica essa combinação como potencial fonte de progênies para produção de bioenergia.

The objective of this study was to assess families and highlight the superior progenies of sugarcane originating from 38 biparental crosses for the following attributes: tons of cane per hectare (TCH), tons of biomass per hectare (TBIOH), brix (% cane juice), fiber content, purity, pol and total recoverable sugar (TRS). The data were analyzed by mixed model REML / BLUP in the REML (Restricted Maximum Likelihood) allowed us to estimate genetic parameters and BLUP (best linear unbiased prediction) to predict the additive and genotypic values. The best family for the attributes TCH and TBIOH was 41, whose parents are cultivars IACSP022019 x CTC9. In individual selection for TCH, the plant number 3 of Block 2, the crossing 78, showed the best results. To TBIOH the plant number 33, Block 1, family 41, showed the best results. Families 40, 41, 43, 68, 69, 79, 91, 92 and147, were higher for the variables brix, pol, purity, and ATR, where as 85 families, 147, 148, 149, 161, 163, 177, 178, 179, and 183 were higher for fiber. The family 147 whose parents are IACSP042286 x IACSP963055, showed three progenies ranked among the top ten for both brix, and for fiber, which identifies the combination as a potential source of progenies for bioenergy production.

https://doi.org/10.1590/1678-4499.0193 3166 downloads

Erratum on "Consensus of the Brazilian Society of Infectious Diseases and Brazilian Society of Clinical Oncology on the management and treatment of Kaposi's sarcoma" [Braz. J. Infect. Dis. 18 (3) (2014) 315-326]
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Arruda, Érico

; Jacome, Alexandre Andrade dos Anjos

; Toscano, Ana Luiza de Castro Conde

; Silvestrini, Anderson Arantes

; Rêgo, André Santa Bárbara

; Wiermann, Evanius Garcia

; Cunha Jr., Geraldo Felicio da

; Melo, Heloisa Ramos Lacerda de

; Morejón, Karen Mirna Loro

; Goldani, Luciano Zubaran

; Pereira Jr., Luiz Carlos

; Silva, Mariliza Henrique

; Treistman, Mauro Sergio

; Pereira, Mônica Cristina Toledo

; Romero, Patricia Maria Bezerra Xavier

; Schmerling, Rafael Aron

; Guedes, Rodrigo Antonio Vieira

; Camargo, Veridiana Pires de

Brazilian Journal of Infectious Diseases

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aug 2014, Volume 18 N. 4 Pages 468 - 468

Abstract: En | Text: En | PDF: En

https://doi.org/10.1016/j.bjid.2014.06.002 1041 downloads

Consensus of the Brazilian Society of Infectious Diseases and Brazilian Society of Clinical Oncology on the management and treatment of Kaposi's sarcoma
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Arruda, Érico

; Jacome, Alexandre Andrade dos Anjos

; Toscano, Ana Luiza de Castro Conde

; Silvestrini, Anderson Arantes

; Rêgo, André Santa Bárbara

; Wiermann, Evanius Garcia

; Cunha Jr., Geraldo Felicio da

; Melo, Heloisa Ramos Lacerda de

; Morejón, Mirna Loro

; Goldani, Luciano Zubaran

; Pereira Jr., Luiz Carlos

; Silva, Mariliza Henrique

; Treistman, Mauro Sergio

; Pereira, Mônica Cristina Toledo

; Romero, Patricia Maria Bezerra Xavier

; Schmerling, Rafael Aron

; Guedes, Rodrigo Antonio Vieira

; Camargo, Veridiana Pires de

Brazilian Journal of Infectious Diseases

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jun 2014, Volume 18 N. 3 Pages 315 - 326

Abstract: En | Text: En | PDF: En

Kaposi's sarcoma is a multifocal vascular lesion of low-grade potential that is most often present in mucocutaneous sites and usually also affects lymph nodes and visceral organs. The condition may manifest through purplish lesions, flat or raised with an irregular shape, gastrointestinal bleeding due to lesions located in the digestive system, and dyspnea and hemoptysis associated with pulmonary lesions. In the early 1980s, the appearance of several cases of Kaposi's sarcoma in homosexual men was the first alarm about a newly identified epidemic, acquired immunodeficiency syndrome. In 1994, it was finally demonstrated that the presence of a herpes virus associated with Kaposi's sarcoma called HHV-8 or Kaposi's sarcoma herpes virus and its genetic sequence was rapidly deciphered. The prevalence of this virus is very high (about 50%) in some African populations, but stands between 2% and 8% for the entire world population. Kaposi's sarcoma only develops when the immune system is depressed, as in acquired immunodeficiency syndrome, which appears to be associated with a specific variant of the Kaposi's sarcoma herpes virus. There are no treatment guidelines for Kaposi's sarcoma established in Brazil, and thus the Brazilian Society of Clinical Oncology and the Brazilian Society of Infectious Diseases developed the treatment consensus presented here.

https://doi.org/10.1016/j.bjid.2014.01.002 3007 downloads Cited 2 times in SciELO

10.

Residual biomass potential of commercial and pre-commercial sugarcane cultivars
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Landell, Marcos Guimarães de Andrade

; Scarpari, Maximiliano Salles

; Xavier, Mauro Alexandre

; Anjos, Ivan Antônio dos

; Baptista, Antônio Sampaio

; Aguiar, Cláudio Lima de

; Silva, Daniel Nunes da

; Bidóia, Márcio Aurélio Pitta

; Brancalião, Sandro Roberto

; Bressiani, José Antônio

; Campos, Marcelo Ferraz de

; Miguel, Paulo Eduardo Martins

; Silva, Thiago Nogueira da

; Silva, Victor Hugo Pavelqueires da

; Anjos, Luciana Oliveira Souza

; Ogata, Bruna Harumi

Scientia Agricola

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oct 2013, Volume 70 N. 5 Pages 299 - 304

Abstract: En | Text: En | PDF: En

Sugarcane (Saccharum spp.) is an efficient and sustainable alternative for energy generation compared to non-renewable sources. Currently, during the mechanized harvest process, the straw left in the field can be used in part for the second generation ethanol and increasing the electric energy production. Thus, this study aimed to provide information on the potential for residual biomass cultivars of sugarcane cropping system. This study provides the following information: yield of straw, depending on the calculated leaf area index and the number of tillers per linear meter; primary energy production of several sugarcane genotypes; contribution of dry tops and leaves; biomass yield; and evaluation of fiber, cellulose, hemicellulose and lignin. Preliminary results obtained by researchers of the State of São Paulo, Brazil, and reCviews related studies are presented. The results suggest that the production of sugarcane straw content varies according to the cultivars; the greater mass of sugarcane straw is in the top leaves and that the potential for the crude energy production of sugarcane per area unit can be increased using fiber-rich species or species that produce more straw. The straw indexes was shown to be a good indicator and allow the estimation of straw volumes generated in a sugarcane crop. The cellulose, hemicellulose and lignin composition in sugarcane is distinct among varieties. Therefore, it is possible to develop distinct biomass materials for energy production and for the development of sugarcane mills using biochemical processes and thermal routes.

3941 downloads

11.

Spatial variability of some biometricattributes of sugarcane plants (variety IACSP93-3046) and its relation to physical and chemical soil attributes
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Grego, Célia Regina

; Vieira, Sidney Rosa

; Xavier, Mauro Alexandre

Bragantia

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2010, Volume 69 Pages 107 - 119

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

Frequentemente a existência de variabilidade espacial do solo não é considerada, contudo, a uniformidade raramente existe e não pode ser pressuposta sem uma adequada averiguação. O objetivo do trabalho foi utilizar a geoestatística para verificar a variabilidade espacial do solo na área experimental localizada em Ribeirão Preto (SP), sob cultivo da variedade de cana-de-açúcar IAC SP 93-3046. Amostras a cada 10 m, totalizando 97 pontos georreferenciados, foram realizadas para análise química do solo, resistência do solo à penetração e dados biométricos das plantas de cana-de-açúcar incluindo número de perfilhos, diâmetro de colmos, massa de colmos, estimativa de produtividade (TCHe) e densidade de raízes. Utilizou-se a análise geoestatística através de semivariogramas, interpolação dos dados por krigagem e construção de mapas de isolinhas. Os resultados evidenciaram dependência espacial para a maioria dos atributos do solo. As manchas na área com menor resistência do solo à penetração e densidade do solo também foram as de maior número de perfilhos e de maior desenvolvimento da raiz da cana-de-açúcar. Para os atributos químicos do solo, houve dependência espacial mostrando maior concentração de nutrientes do solo no centro da área. A amostragem permitiu boa representatividade da dependência espacial do solo e das plantas sendo descartada a hipótese de aleatoriedade para disposição de parcelas nesta área.

Tests to evaluate competition between plants, in general do not consider the soil spatial variability, nevertheless, the uniformity rarely is present and can not be assumed without verification. The aim of this work was to apply geostatistics to verify the spatial variability of the soil in an experimental field near Ribeirão Preto, SP, with sugarcane variety IACSP93-3046. Ninety seven geo-referenced samples, placed at distances of 10 m, were collected for soil chemical analysis, soil resistance to penetration and biometric evaluation of the sugar cane plant included number of tillers, stalk diameter, stalk height, estimated productivity (TSSe) and root density. Geostatistics has been applied by means of semivariogram, data interpolation via kriging and iso-line maps creation. The results have shown soil spatial dependence for most of the evaluated attributes. The spots, within the area, with low resistance to penetration and low soil density have shown the largest number of tillers and the largest root development of sugar cane. For soil chemical attributes, there was spatial dependence showing higher concentration of nutrients in the central area. The sampling allowed a good representativity of the spatial dependence of soil and plants, making it possible to eliminate the randomness hypothesis for the placement of the plots in this area.

2149 downloads Cited 1 time in SciELO

12.

Influence of cyclosporine A on mucociliary system after lung transplantation in rats
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Xavier, Alexandre Martins

; Pêgo-Fernandes, Paulo Manuel

; Correia, Aristides Tadeu

; Pazetti, Rogerio

; Monteiro, Rosangela

; Canzian, Mauro

; Jatene, Fabio Biscegli

Acta Cirúrgica Brasileira

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dec 2007, Volume 22 N. 6 Pages 465 - 469

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

OBJETIVO: Investigar a função do sistema mucociliar em ratos transplantados sob a influência de imunossupressores. MÉTODOS: Trinta e seis ratos foram submetidos ao transplante pulmonar unilateral e divididos em dois grupos, onde um grupo foi tratado com ciclosporina e outro foi controle. Administrada ciclosporina por via subcutânea na dose de 10 mg/kg diariamente. Os ratos foram sacrificados 2, 15 e 30 dias após o transplante pulmonar. O transporte mucociliar brônquico (TMC) in situ e a freqüência de batimento ciliar (FBC) foram analisados na porção proximal e distal à anastomose brônquica. Realizada correlação dos achados com parâmetros gasométricos e histologia. RESULTADOS: Foi encontrada melhora progressiva e significante no TMC na região proximal e distal a anastomose no grupo que recebeu ciclosporina em 15 e 30 dias (p<0,01). Não houve diferença na FBC nos dois grupos estudados. A análise histológica mostrou que a rejeição foi significantemente maior no grupo controle (p<0,05). A oxigenação foi melhor nos animais que receberam a ciclosporina. CONCLUSÃO: A ciclosporina exerceu influência positiva no transporte mucociliar brônquico, provavelmente por sua ação imunossupressora.

PURPOSE: To investigate the function of the bronchial mucociliary system in transplanted rat lungs with and without the influence of immunosuppression. METHODS: Thirty-six rats underwent single-lung transplantation and were divided into two groups, one of which received cyclosporine treatment, and the control group which did not. Cyclosporine was administered subcutaneously in doses of 10 mg/kg daily. The rats were sacrificed 2, 15 or 30 days after transplantation. In situ bronchial mucociliary transport (MCT) and ciliary beat frequency (CBF) were determined proximal and distal to the bronchial anastomosis. RESULTS: Significant progressive improvement on MCT, proximal and distal to the anastomotic site, was also found in the cyclosporine-treated group at 15 and 30 days (p<0.01). No significant change in MCT was found in the control group. CBF behavior in the two groups. Histological analysis showed that rejection was significantly higher in the control group (p<0.05). CONCLUSION: Cyclosporine has a positive influence on bronchial mucociliary transport but not on CBF due to the effect of the rejection mechanism.

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13.

Oxisol subsurface chemical attributes related to sugarcane productivity
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Landell, Marcos Guimarães de Andrade

; Prado, Hélio do

; Vasconcelos, Antônio Carlos Machado de

; Perecin, Dilermando

; Rossetto, Raffaella

; Bidoia, Márcio Aurélio Pitta

; Silva, Marcelo de Almeida

; Xavier, Mauro Alexandre

Scientia Agricola

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dec 2003, Volume 60 N. 4 Pages 741 - 745

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

Embora haja homogeneidade nas características morfológicas na classe dos Latossolos, existe grande diversidade química na subsuperfície. Trabalhos indicam que a produção agrícola apresenta correlação significativa com atributos químicos de subsuperfície, que são mais estáveis que na camada arável, sujeita a alterações decorrentes da exploração agrícola. Pelo exposto, o presente estudo avaliou os efeitos dos atributos químicos de subsuperfície de Latossolos da região Centro-Sul do Brasil na produtividade agrícola dos três primeiros cortes de clones de cana-de-açúcar e da variedade RB72454. Utilizaram-se os dados de produtividade agrícola correspondentes ao período de 1993 a 1998. Os solos foram caracterizados sob o ponto de vista granulométrico e químico na profundidade entre 0,8 e 1,0 m e foram feitos estudos de correlação entre tais atributos e as médias de produtividade agrícola diária durante o ciclo dos clones de cada ensaio e da variedade RB72454 e análise de regressão múltipla, com as variáveis selecionadas pelo procedimento "stepwise" em função do R². As características químicas de subsuperfície dos Latossolos influenciaram na produtividade agrícola da cana-de-açúcar, principalmente no 3º corte. Para as médias dos clones, o modelo de produtividade do 3º corte em função de saturação por bases e fósforo, mostra R² = 0,31, ou seja, que 31% da variação de TCH dia-1 pode ser explicada por esses dois atributos. No caso da variedade RB72454, essa mesma variação no 3º corte é explicada em 47% pelos atributos soma de bases e teores de cálcio e matéria orgânica. As variações de produtividade de 1º e 2º cortes foram melhor explicadas pelo pHágua.

In spite of the great homogeneity found in the morphological characteristics of Oxisols, there is great chemical diversity in subsurface layers of these soils. Studies indicate that crop yield presents significant correlation with the chemical attributes of the subsurface, which, are more stable than attributes found in the plough layer, subject to greater alterations as a consequence of agricultural exploration. This work evaluated the effects of subsurface chemical attributes of Oxisols of the South Central region of Brazil, on the yield of sugarcane clones and of variety RB72454, during the first, second and third cropping cycles. Productivity data were obtained between 1993 and 1998. Soils were characterized in terms of their mechanical analysis and chemical traits at 0.8 to 1.0 m; correlation studies between these attributes and mean daily productivity as well as multiple regression analysis were also carried out; variables were selected based on their R² values by means of the stepwise procedure. The subsurface chemical traits of the Oxisols influenced sugarcane productivity, especially the 3rd harvest; the clone productivity model for the 3rd harvest as a function of base saturation and phosphorus content presented R² = 0.31, i.e., 31% of the variation in sugarcane yield (t ha-1 day-1) can be explained by these two attributes. For variety RB72454, 47% of that variation is explained by the sum of bases and contents of calcium and organic matter. Variations on productivity at 1st and 2nd harvests can be better explained by pHwater.

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14.

II Consenso Brasileiro de Fator Antinuclear em Células HEp-2: Definitions for standardization of autoantibody testing against the nucleus (ANA HEp-2), nucleolus, cytoplasm and mitotic apparatus, as wel as its clinical associations
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Dellavance, Alessandra

; Gabriel Júnior, Alexandre

; Cintra, Alice F. U.

; Ximenes, Antônio Carlos

; Nuccitelli, Barbara

; Taliberti, Ben Hur

; Moreira, Caio

; von Mühlen, Carlos Alberto

; Bichara, Carlos David

; Santos, Cláudio Henrique Ramos dos

; Yano, Cristiane Martinez

; Mangueira, Cristóvão Luis Pitangueira

; Carvalho, Darlene Gonçalves

; Bonfá, Eloísa Silva Dutra de O.

; Doi, Elvira M.

; Guimarães, Fabiana Nunes de Carvalho

; Araújo, Flávia Ikeda e

; Mundim, Hugo Mendonça

; Rego, Jozelia

; Vieira, Lisiane Ericonio dos Anjos

; Poli, Luciana

; Andrade, Luís Eduardo Coelho

; Callado, Maria Roseli

; Mesquita, Mauro Meira

; Sugiyama, Mitiko

; Slhessarenko, Natasha

; Silva, Nilzio Antônio da

; Carballo, Orlando Gabriel

; Leser, Paulo Guilherme

; Francescantonio, Paulo Luiz Carvalho

; Jarach, Renata

; Xavier, Ricardo Machado

; Levy, Roger Abramino

; Neves, Suzane P. F.

; Cruvinel, Wilson de Melo

; Santos, Wilton Silva dos

Revista Brasileira de Reumatologia

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jun 2003, Volume 43 N. 3 Pages 129 - 140

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

OBJETIVO: O Segundo Consenso Brasileiro de Fator Antinuclear (FAN) em Células HEp-2 ratificou os algoritmos de decisão para leitura dos padrões do FAN na imunofluorescência indireta vistos na primeira edição do Consenso Brasileiro, adicionando ainda um novo algoritmo relacionado com os padrões mistos. MÉTODOS: Tendo em vista a habilidade do teste em detectar autoantígenos nos distintos compartimentos celulares, e não apenas no núcleo, propõe-se novas denominações para este exame laboratorial. RESULTADOS E CONCLUSÕES: Como novas denominações algumas sugestões foram igualmente aceitas, dentro do tema "pesquisa de auto-anticorpos contra constituintes do núcleo (FAN HEp-2), nucléolo, citoplasma e aparelho mitótico". Foram abordadas as principais relevâncias clínicas com os padrões de FAN descritos, facilitando o melhor uso do ensaio pelo médico.

OBJECTIVE: The Second Brazilian Consensus on Antinuclear Antibodies (ANA) in HEp-2 Cells approved and extended the decision trees developed during the First Brazilian Consensus in order to also offer information about mixed patterns of fluorescence. METHODS: Since this test elicits reactions not only to nuclear autoimmune antigens but also to different cell compartments, new denominations for the test were approved. Results and CONCLUSIONS: These new denominations encompass variations on the "autoantibody testing against the nucleus (ANA HEp-2), nucleolus, cytoplasm, and mitotic apparatus" issue. Furthermore, major clinical associations were described for each immunofluorescent pattern, facilitating the interpretation of laboratory results in the clinical practice.

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