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ABSTRACT The objective of this study was to identify parameters, before the start of the breeding season, that affect the conception rate of precocious Nelore heifers through ultrasonographic ovarian evaluation and evaluation of weight and body condition score (BCS). A total of 407 heifers aged 404±69 days (≈14 months old), weighing 267.1±31.2 kg, and with mean BCS of 3.1±0.5, were used. Heifers were subjected to hormone treatment to induce cyclicity and, 30 days later, to a fixed-time artificial insemination (FTAI) program with three managements. Morphometric measurements of ovaries and ovarian structures were performed by transrectal ultrasonographic evaluation, as well as weighing and evaluation of BCS on D −30 and D0. Conception rate was evaluated 30 days after FTAI. The conception rate of heifers did not vary according to ovary diameter, weight, BCS, and age at first calving. However, heifers with the presence of follicle with a diameter > 6 mm at D −30 and D0 had a higher conception rate at the first FTAI. The presence of a dominant follicle greater than 6 mm at D −30 is an efficient complementary criterion to identify 14-month-old Nelore heifers with greater ability to conceive at the first FTAI before the breeding season. Antral follicle count performed on D −30 is not a good tool to predict fertility at the first FTAI, and the weight may not be a limiter to select heifers under good nutritional and health management. parameters season BCS. . (BCS) 40 40469 404 69 404±6 ≈14 14 (≈1 old, old , old) 2671312 267 1 31 2 267.1±31. kg 3105 3 0 5 3.1±0.5 used later fixedtime fixed time (FTAI managements −3 calving However 14monthold monthold month management (BCS 4 4046 404± ≈1 (≈ 267131 26 267.1±31 310 3.1±0. − ≈ ( 26713 267.1±3 3.1±0 2671 267.1± 3.1± 267.1 3.1 267. 3.

https://doi.org/10.37496/rbz5320230012

Dalechampia burchellii (Euphorbiaceae): rediscovered, new synonyms, and update of geographical distribution Euphorbiaceae (Euphorbiaceae) rediscovered synonyms (Euphorbiaceae
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Mendes, Jone Clebson Ribeiro

; Pereira-Silva, Rafaela Alves

; Oliveira, Mayk H. de

; Bígio, Narcísio C.

; Secco, Ricardo de S.

; Silveira, Marcos

Hoehnea

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2024, Volume 51 elocation e802023

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

RESUMO (Dalechampia burchellii (Euphorbiaceae): redescorberta, novos sinônimos e atualização sobre a área de distribuição geográfica). Dalechampia apresenta cerca de 72 espécies, 48 delas endêmicas do Brasil, as quais ocorrem em todas as regiões e domínios fitogeográficos. Após extensa análise de material herborizado e coleta in situ, descobrimos a verdadeira identidade de D. burchellii e atualizamos a descrição morfológica e a área de distribuição geográfica da espécie. Também apresentamos registros fotográficos em campo, dados sobre o hábitat, fenologia e estado de conservação preliminar. Além disso, apresentamos comentários sobre o tipo de D. burchellii e incluímos D. anomala e D. bangii como novos sinônimos. Euphorbiaceae (Euphorbiaceae) redescorberta geográfica. . geográfica) 7 espécies 4 Brasil fitogeográficos situ D espécie campo hábitat preliminar disso (Euphorbiaceae

ABSTRACT Dalechampia burchellii (Euphorbiaceae): rediscovery, new synonyms, and update of its geographic distribution area). Dalechampia comprises around 72 species, among them, 48 are endemic to Brazil, occurring in all regions and phytogeographic domains. After extensive analysis of herborized material and in situ collection, we discovered the identity of D. burchellii and updated the morphological description and geographic distribution area of the species. We also present photographic records in the field, data on the habitat, phenology, and preliminary conservation status. Additionally, we present comments about the type of D. burchellii and included D. anomala and D. bangii as new synonyms. Euphorbiaceae (Euphorbiaceae) rediscovery synonyms area. . area) 7 species them 4 Brazil domains collection D field habitat phenology status Additionally (Euphorbiaceae

https://doi.org/10.1590/2236-8906e802023

HERBase: A collection of understorey herb vegetation plots from Amazonia HERBase
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ANDRÉ, Thiago

; MOULATLET, Gabriel Massaine

; ALMEIDA, Thaís Elias

; ALVERGA, Paula Palhares de Polari

; BOELTER, Carlos Renato

; DRUCKER, Debora Pignatari

; SILVA, Julia Gomes da

; LINARES-PALOMINO, Reynaldo

; LOPES, Maria Aparecida

; MAGALHÃES, José Leonardo Lima

; MANZATTO, Angelo Gilberto

; MEWS, Henrique Augusto

; MOLL, Iracema Elizabeth de Siuza

; MORTATI, Amanda Frederico

; PAIXÃO, Eliana Celestino da

; QUINTERO-VALLEJO, Estela

; ANDEL, Tinde van

; SILVEIRA, Marcos

; STORCK-TONON, Danielle

; TUOMISTO, Hanna

; ZUQUIM, Gabriela

; COSTA, Flávia Regina Cappelloto

Acta Amazonica

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jun 2023, Volume 53 N. 2 Pages 114 - 121

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

RESUMO As ervas do sub-bosque formam um componente diversificado e pouco estudado em florestas tropicais. Embora vários estudos e grupos de pesquisa tenham se dedicado ao estudo desse componente conspícuo na Amazônia, nenhum esforço foi feito até o momento para unificar essas informações. Em contraste com árvores e outros grupos de plantas para os quais já existem grandes compilações de dados, uma base de dados unificada dedicada às ervas ainda não existe. Parte do problema está em definir o que é uma erva e como amostrar comunidados de ervas de forma eficiente. Neste artigo descrevemos a base de dados HERBase, uma compilação exaustiva de dados publicados e não publicados sobre inventários de ervas na Amazônia. Também descrevemos a estrutura, funcionamento e diretrizes para curadoria e integração de dados na HERBase. Conseguimos compilar informações de 1381 parcelas de todas as seis regiões geográficas amazônicas. Com base nesses dados, descrevemos e discutimos lacunas de amostragem e conhecimento, apontamos áreas prioritárias para novas coletas e recomendamos protocolos de amostragem para facilitar a integração de dados no futuro. Essa nova base de dados fornece dados únicos de biodiversidade sobre ervas do sub-bosque que permitirão novos estudos sobre ecologia e biogeografia de comunidades. subbosque sub bosque tropicais Amazônia existe eficiente HERBase estrutura 138 amazônicas conhecimento futuro comunidades 13 1

ABSTRACT Understorey herbs form a diverse and understudied plant assemblage in tropical forests. Although several studies and research teams have long been dedicated to the study of this conspicuous vegetation component in Amazonia, no effort to unify the data has been undertaken to date. In contrast to trees and other life forms for which major data compilations already exist, a unified database dedicated to herbs is still lacking. Part of the problem is in defining what is a herb and how to effectively sample herb assemblages. In this article, we describe the database HERBase, an exhaustive compilation of published and unpublished data on herb inventories in Amazonia. We also describe the structure, functioning, and guidelines for data curation and integration in HERBase. We were able to compile information from 1381 plots from all six Amazonian geographic regions. Based on this dataset, we describe and discuss sampling and knowledge gaps, priority areas for new collections, and recommend sampling protocols to facilitate data integration in the future. This novel database provides a unique biodiversity data repository on understorey herbs that will enable new studies on community ecology and biogeography. forests Amazonia date exist lacking assemblages article HERBase structure functioning 138 regions dataset gaps collections future biogeography 13 1

https://doi.org/10.1590/1809-4392202203150

Long-term Ecological Research: Chasing fashions or being prepared for fashion changes? Longterm Long term Research changes
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BERGALLO, HELENA G.

; ROSA, CLARISSA

; OCHOA, ANA C.

; MANZATTO, ANGELO GILBERTO

; GUIMARAES, ARETHA F.

; BANHOS, AUREO

; CASTILHO, CAROLINA V.

; BARROS, CLAUDIA F.

; NORRIS, DARREN

; DRUCKER, DEBORA P.

; RODRIGUES, DOMINGOS J.

; BACCARO, FABRICIO B.

; LOURENÇO, IGOR H.

; ZUANON, JANSEN

; STEGMANN, LIS F.

; ANJOS, MARCELO R.

; SILVEIRA, MARCOS

; ARAÚJO, PATRICIA S.G.

; BOBROWIEC, PAULO E.D.

; FADINI, RODRIGO

; NECKEL-OLIVEIRA, SELVINO

; EMILIO, THAISE

; SANTORELLI JUNIOR, SERGIO

; MAGNUSSON, WILLIAM E.

Anais da Academia Brasileira de Ciências

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2023, Volume 95 N. 3 elocation e20230051

Abstract: En | Text: En | PDF: En

Abstract Long-term-ecological-research (LTER) faces many challenges, including the difficulty of obtaining long-term funding, changes in research questions and sampling designs, keeping researchers collecting standardized data for many years, impediments to interactions with local people, and the difficulty of integrating the needs of local decision makers with “big science”. These issues result in a lack of universally accepted guidelines as to how research should be done and integrated among LTER sites. Here we discuss how the RAPELD (standardized field infrastructure system), can help deal with these issues as a complementary technique in LTER studies, allowing comparisons across landscapes and ecosystems and reducing sampling costs. RAPELD uses local surveys to understand broad spatial and temporal patterns while enhancing decision-making and training of researchers, local indigenous groups and traditional communities. Sampling of ecological data can be carried out by different researchers through standardized protocols, resulting in spatial data that can be used to answer temporal questions, and allow new questions to be investigated. Results can also be integrated into existing biodiversity networks. Integrated systems are the most efficient way to save resources, maximize results, and accumulate information that can be used in the face of the unknown unknowns upon which our future depends. Longtermecologicalresearch Long term (LTER challenges longterm long funding designs years people big science. science . science” sites system, system , system) studies costs decisionmaking making communities protocols investigated networks resources results depends

https://doi.org/10.1590/0001-3765202320230051

HYDRAULIC TRAITS OF Jacaranda copaia (Aubl.) D. Don. (Bignoniaceae) IN THE SOUTHWEST AMAZON Aubl. Aubl (Aubl. D Don Bignoniaceae (Bignoniaceae (Aubl
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Oliveira, Renata Teixeira de

; Santos, João Antônio Rodrigues

; Oliveira, Martin Acosta

; Tavares, Julia Valentim

; Miranda, Patrícia Nakayama

; Silveira, Marcos

Revista Árvore

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2023, Volume 47 elocation e4715

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

RESUMO As árvores transportam água do subsolo para a atmosfera através do processo de evapotranspiração. As mudanças climáticas podem comprometer significativamente esse processo devido a mudanças no uso da terra decorrentes, por exemplo, do desmatamento. O objetivo deste estudo foi caracterizar os atributos hidráulicos e anatômicos de Jacaranda copaia (Aubl.) D. Don (Bignoniaceae) no sudoeste da Amazônia brasileira. Para tanto, foi descrita a curva de vulnerabilidade do xilema desta espécie. A frequência e o diâmetro dos vasos do xilema e a densidade dos estômatos também foram medidos. Finalmente, um atributo hidráulico de Jacaranda copaia foi comparado a outras espécies em nível global, tropical e amazônico. Os achados mostram que, na região estudada, a espécie Jacaranda copaia possui lenhos de porosidade difusa e vasos numerosos (vasos médios variando de 8 a 14 nº/mm2) com diâmetros pequenos (<50µm) a médios (entre 100 e 200 µm). A densidade estomática média variou de 289 a 309 estômatos/mm2. A resistência hidráulica do xilema à embolia (Ψ50) variou de -0.814 a -2.400 MPa, com margens de segurança hidráulica relativamente estreitas (MSH50 variando de -0.312 a 1.122; MSH88 variando de 0.204 a 1.709). Em geral, os valores médios de Ψ50 detectados foram semelhantes a uma grande porcentagem de espécies arbóreas em nível global, tropical e amazônico. Possivelmente, a espécie estudada apresenta uma estratégia hidráulica mais “arriscada” (ou seja, margens de segurança hidráulica relativamente estreitas), devido ao seu caráter dinâmico de crescimento rápido, típico de espécies pioneiras. evapotranspiração decorrentes exemplo desmatamento Aubl. Aubl (Aubl. D Bignoniaceae (Bignoniaceae brasileira tanto medidos Finalmente global amazônico que 1 nº/mm2 nºmm2 nºmm nº mm2 mm <50µm 50µm µm (<50µm entre 10 20 µm. . µm) 28 30 estômatosmm2 estômatosmm estômatos/mm2 Ψ (Ψ50 0.814 0814 0 814 -0.81 2.400 2400 2 400 -2.40 MPa MSH50 MSH (MSH5 0.312 0312 312 -0.31 1.122 1122 122 MSH8 0204 204 0.20 1.709. 1709 1.709 709 1.709) geral Ψ5 Possivelmente arriscada “arriscada ou seja estreitas, , estreitas) rápido pioneiras (Aubl nº/mm 3 estômatos/mm (Ψ5 0.81 081 81 -0.8 2.40 240 40 -2.4 MSH5 (MSH 0.31 031 31 -0.3 1.12 112 12 020 0.2 170 1.70 70 (Ψ 0.8 08 -0. 2.4 24 4 -2. 0.3 03 1.1 11 02 0. 17 1.7 7 -0 2. -2 1. -

ABSTRACT Trees transport water from underground to the atmosphere through the evapotranspiration process. Climate change can significantly compromise this process due to changes in land use, such as deforestation. This study aimed to characterize the hydraulic and anatomical attributes of Jacaranda copaia (Aubl.) D. Don (Bignoniaceae), in the Southwestern Brazilian Amazon. For this purpose, the xylem vulnerability curve of this species was described. The frequency and diameter of the xylem vessels and the stomata density were also measured. Finally, a hydraulic attribute of Jacaranda copaia was compared to other species at global, tropical, and Amazonian levels. The findings show that, in the region studied, the species Jacaranda copaia has diffuse-porous woods and numerous vessels (average vessel ranging from 8 to 14 nº/mm2) with small (<50µm) to medium (between 100 and 200 µm) diameters. The average stomatal density ranged from 289 to 309 stomata/mm2. The xylem hydraulic resistance to embolism (Ψ50) ranged from -0.814 to -2.400 MPa, with relatively narrow hydraulic safety margins (HSM50 ranging from -0.312 to 1.122; HSM88 ranging from 0.204 to 1.709). The average values of Ψ50 detected were similar to a large percentage of arboreal species at global, tropical, and Amazonian levels. Possibly, the studied species presents a more “risky” hydraulic strategy, with relatively narrow hydraulic safety margins, due to its dynamic character of fast growth, typical of pioneer species. use deforestation Aubl. Aubl (Aubl. D Bignoniaceae, Bignoniaceae , (Bignoniaceae) Amazon purpose described measured Finally global tropical levels that diffuseporous diffuse porous 1 nº/mm2 nºmm2 nºmm nº mm2 mm <50µm 50µm µm (<50µm between 10 20 diameters 28 30 stomatamm2 stomatamm stomata/mm2 Ψ (Ψ50 0.814 0814 0 814 -0.81 2.400 2400 2 400 -2.40 MPa HSM50 HSM (HSM5 0.312 0312 312 -0.31 1.122 1122 122 HSM8 0204 204 0.20 1.709. 1709 1.709 . 709 1.709) Ψ5 Possibly risky “risky strategy growth (Aubl (Bignoniaceae nº/mm 3 stomata/mm (Ψ5 0.81 081 81 -0.8 2.40 240 40 -2.4 HSM5 (HSM 0.31 031 31 -0.3 1.12 112 12 020 0.2 170 1.70 70 (Ψ 0.8 08 -0. 2.4 24 4 -2. 0.3 03 1.1 11 02 0. 17 1.7 7 -0 2. -2 1. -

https://doi.org/10.1590/1806-908820230000015

O FUTURO DAS TRANSFERÊNCIAS DE RENDA NO BRASIL: DILEMAS EMPÍRICOS E NORMATIVOS PARA UM PROGRAMA PÓS-PANDEMIA E PÓS-AUXÍLIO EMERGENCIAL
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Lucca-Silveira, Marcos Paulo

; Barbosa, Rogério Jerônimo

Sociologia & Antropologia

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2021, Volume 11 N. spe Pages 67 - 92

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

Resumo O objetivo desse artigo é refletir sobre os dilemas normativos que rondam o futuro das transferências de renda no Brasil, pós-pandemia. Iniciamos pela análise dos impactos da pandemia sobre resultados socioeconômicos e dos efeitos do auxílio emergencial sobre a distribuição de renda. Abordamos a discussão atual sobre os limites do Bolsa Família e o conceito de renda básica universal. Introduzimos três princípios de justiça para nortear nossa análise normativa: o igualitarismo, o prioritarismo e o suficientismo. Mostramos como esses conceitos permitem fazer questões sobres os objetivos de políticas e sobre dilemas morais implicados nos desenhos e métodos de implementação. Mostramos ainda que os próprios princípios de justiça são modificados quando levamos em conta aspectos práticos e não ideais da realidade sobre quais políticas são elaboradas.

Abstract In this article, we analyze the normative dilemmas that surround the future of cash transfers in Brazil, after the Covid-19 pandemic. We begin by analyzing the impacts of the pandemic on socioeconomic outcomes and the effects of emergency aid on the income distribution. We address the current discussion about the limits of Bolsa Família and how the concept of a universal basic income. We introduce three principles of justice to guide our normative analysis: egalitarianism, prioritarianism, and sufficientarianism. We show how these concepts allow us to ask unique questions about policy objectives and moral dilemmas implied by the policy designs and methods of implementation. We also show that the principles of justice themselves are modified when we take into account practical and non-ideal aspects of the reality on which policies are elaborated.

https://doi.org/10.1590/2238-38752021v11esp3 139 downloads

The Program for Biodiversity Research in Brazil: The role of regional networks for biodiversity knowledge, dissemination, and conservation
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ROSA, CLARISSA

; BACCARO, FABRICIO

; CRONEMBERGER, CECILIA

; HIPÓLITO, JULIANA

; BARROS, CLAUDIA FRANCA

; RODRIGUES, DOMINGOS DE JESUS

; NECKEL-OLIVEIRA, SELVINO

; OVERBECK, GERHARD E.

; DRECHSLER-SANTOS, ELISANDRO RICARDO

; ANJOS, MARCELO RODRIGUES DOS

; FERREGUETTI, ÁTILLA C.

; AKAMA, ALBERTO

; MARTINS, MARLÚCIA BONIFÁCIO

; TOMAS, WALFRIDO MORAES

; SANTOS, SANDRA APARECIDA

; FERREIRA, VANDA LÚCIA

; CUNHA, CATIA NUNES DA

; PENHA, JERRY

; PINHO, JOÃO BATISTA DE

; SALIS, SUZANA MARIA

; DORIA, CAROLINA RODRIGUES DA COSTA

; PILLAR, VALÉRIO D.

; PODGAISKI, LUCIANA R.

; MENIN, MARCELO

; BÍGIO, NARCÍSIO COSTA

; ARAGÓN, SUSAN

; MANZATTO, ANGELO GILBERTO

; VÉLEZ-MARTIN, EDUARDO

; SILVA, ANA CAROLINA BORGES LINS E

; IZZO, THIAGO JUNQUEIRA

; MORTATI, AMANDA FREDERICO

; GIACOMIN, LEANDRO LACERDA

; ALMEIDA, THAÍS ELIAS

; ANDRÉ, THIAGO

; SILVEIRA, MARIA AUREA PINHEIRO DE ALMEIDA

; SILVEIRA, ANTÔNIO LAFFAYETE PIRES DA

; MESSIAS, MARILUCE REZENDE

; MARQUES, MARCIA C.M.

; PADIAL, ANDRE ANDRIAN

; MARQUES, RENATO

; BITAR, YOUSZEF O.C.

; SILVEIRA, MARCOS

; MORATO, ELDER FERREIRA

; PAGOTTO, RUBIANI DE CÁSSIA

; STRUSSMANN, CHRISTINE

; MACHADO, RICARDO BOMFIM

; AGUIAR, LUDMILLA MOURA DE SOUZA

; FERNANDES, GERALDO WILSON

; OKI, YUMI

; NOVAIS, SAMUEL

; FERREIRA, GUILHERME BRAGA

; BARBOSA, FLÁVIA RODRIGUES

; OCHOA, ANA C.

; MANGIONE, ANTONIO M.

; GATICA, AILIN

; CARRIZO, MARÍA CELINA

; RETTA, LUCÍA MARTINEZ

; JOFRÉ, LAURA E.

; CASTILLO, LUCIANA L.

; NEME, ANDREA M.

; RUEDA, CARLA

; TOLEDO, JOSÉ JULIO DE

; GRELLE, CARLOS EDUARDO VIVEIROS

; VALE, MARIANA M.

; VIEIRA, MARCUS VINICIUS

; CERQUEIRA, RUI

; HIGASHIKAWA, EMÍLIO MANABU

; MENDONÇA, FERNANDO PEREIRA DE

; GUERREIRO, QUÊZIA LEANDRO DE MOURA

; BANHOS, AUREO

; HERO, JEAN-MARC

; KOBLITZ, RODRIGO

; COLLEVATTI, ROSANE GARCIA

; SILVEIRA, LUÍS FÁBIO

; VASCONCELOS, HERALDO L.

; VIEIRA, CECÍLIA RODRIGUES

; COLLI, GUARINO RINALDI

; CECHIN, SONIA ZANINI

; SANTOS, TIAGO GOMES DOS

; FONTANA, CARLA S.

; JARENKOW, JOÃO A.

; MALABARBA, LUIZ R.

; RUEDA, MARTA P.

; ARAUJO, PUBLIO A.

; PALOMO, LUCAS

; ITURRE, MARTA C.

; BERGALLO, HELENA GODOY

; MAGNUSSON, WILLIAM E.

Anais da Academia Brasileira de Ciências

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2021, Volume 93 N. 2 elocation e20201604

Abstract: En | Text: En | PDF: En

Abstract The Program for Biodiversity Research (PPBio) is an innovative program designed to integrate all biodiversity research stakeholders. Operating since 2004, it has installed long-term ecological research sites throughout Brazil and its logic has been applied in some other southern-hemisphere countries. The program supports all aspects of research necessary to understand biodiversity and the processes that affect it. There are presently 161 sampling sites (see some of them at Supplementary Appendix), most of which use a standardized methodology that allows comparisons across biomes and through time. To date, there are about 1200 publications associated with PPBio that cover topics ranging from natural history to genetics and species distributions. Most of the field data and metadata are available through PPBio web sites or DataONE. Metadata is available for researchers that intend to explore the different faces of Brazilian biodiversity spatio-temporal variation, as well as for managers intending to improve conservation strategies. The Program also fostered, directly and indirectly, local technical capacity building, and supported the training of hundreds of undergraduate and graduate students. The main challenge is maintaining the long-term funding necessary to understand biodiversity patterns and processes under pressure from global environmental changes.

https://doi.org/10.1590/0001-3765202120201604 1034 downloads

Cardiovascular risk factors in adolescents: a study with high school students
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Aguiar, Jaina Bezerra de

; Silveira, Marcos Augusto Araújo

; Soares, Edson Silva

; Loureiro, Adriano César Carneiro

Motricidade

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dec 2017, Volume 13 Suppl. 1 Pages 07 - 13

Abstract: En | Text: En | PDF: En

The purpose of the study was to investigate cardiovascular risk factors (CRF) found in adolescents from a public school in Fortaleza / Ceará / Brazil. The sample consisted of 180 students from the State High School Justiniano de Serpa, which is covered by sub-project of the course of Physical Education of the Institutional Program Initiation Grant for Teaching from the State University of Ceará. For data collection, it was used a questionnaire which included objective questions related to gender, age, alcohol consumption, smoking, physical activity level, and family history. Besides that, a physical evaluation was conducted in which it was collected height, weight, and waist circumference. For data analysis, it was used the absolute and relative frequency to characterize the participants as well as chi-square test for the variables gender and level of physical activity. Results showed the percentage of overweight and obesity was 22.2% and 12.2%, respectively. Furthermore, 16.7% of adolescents had abdominal obesity, 6% reported alcohol consumption, and 1% smoking. In family history, highlighted the presence of diabetes, hypertension, and high cholesterol levels, which together amounted to 65.4%. The results also showed 79.4% of adolescents had insufficient levels of physical activity. It is concluded that the main CRF found were family history, physical activity, and overweight.

568 downloads

INTELECTUAIS COMUNISTAS E A QUESTÃO DA DEMOCRACIA NO BRASIL
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Lucca-Silveira, Marcos Paulo de

Lua Nova: Revista de Cultura e Política

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aug 2017, N. 101 Pages 53 - 87

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

Resumo Neste artigo, analisar-se-á o movimento de adesão teórico-conceitual e política à democracia, realizado por um grupo de intelectuais comunistas brasileiros ao longo dos anos 1970 e 1980. Apresentar-se-á a hipótese histórica de que a publicação realizada por Carlos Nelson Coutinho do ensaio “A democracia como valor universal”, em 1979, deve ser considerada momento decisivo em torno da adesão à democracia por intelectuais marxistas, particularmente vinculados ao comunismo, no Brasil. Posteriormente, uma meticulosa interpretação de como o movimento de adesão à democracia política foi realizado e justificado a partir de um renovado arcabouço teórico-conceitual marxista - com conceitos de Lukács, Gramsci e Lenin - é apresentada.

Abstract This article analyzes the theoretical-conceptual and political adhesion to democracy by a group of Brazilian communist intellectuals throughout the 1970s and 1980s. It presents the historical hypothesis that the publishing of Carlos Nelson Coutinho’s essay “Democracy as a universal value”, in 1979, is the decisive moment in terms of adhesion to democracy by Marxist intellectuals, particularly those linked to communism, in Brazil. This article also presents a particular interpretation of how the movement towards adhesion to political democracy was accomplished and justified from a renewed Marxist theoretical-conceptual framework - with concepts from Lukács, Gramsci and Lenin.

https://doi.org/10.1590/0102-053087/101 3371 downloads

10.

O fluxo de capital para as economias emergentes e o grau de desenvolvimento do sistema financeiro
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Rocha, Katia

; Moreira, Ajax

; Silveira, Marcos

Estudos Econômicos (São Paulo)

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jun 2017, Volume 47 N. 2 Pages 235 - 257

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

Resumo O presente artigo tem como objetivo analisar o papel do sistema financeiro doméstico como mitigador de eventos de paradas súbitas e condicionante de fluxos de capital de um grupo de 14 economias emergentes no período de 1999-2013, em especial em face de cenários externos desfavoráveis como aumento dos juros internacionais e aversão ao risco global. Os países analisados - Argentina, Brasil, Chile, Colômbia, Indonésia, Malásia, México, Peru, Filipinas, Rússia, África do Sul, Tailândia, Turquia e Ucrânia representavam, em agosto de 2014, aproximadamente 80% do índice EMBIPLUS e 60% do índice EMBIGLOBAL. Procurou-se distinguir o efeito sobre diversos tipos de fluxos de capital: Fluxo de entrada de Investimento Externo Direto, Fluxo de entrada de Investimento em Carteira e Fluxo Líquido, com análise de robustez para período desde 1990 e aumento do número de países emergentes. O principal resultado suporta evidências que o fortalecimento do sistema financeiro doméstico - medido com a capitalização bursátil em proporção do PIB - propicia aumento dos fluxos de entrada de capital de todos os tipos de fluxos em todos os modelos analisados, reduzindo a probabilidade de ocorrência de parada súbita do fluxo de Investimento Externo Direto e em alguns casos do fluxo de Carteira, o que motiva políticas públicas que incentivem o desenvolvimento e fortalecimento deste setor. Estimativas também destacam o papel dos fundamentos domésticos, tão importantes quanto os fatores globais nos condicionantes de fluxo de capital e na ocorrência paradas súbitas. Este fato motiva políticas públicas que incentivem o fortalecimento e desenvolvimento das instituições nos países emergentes, e ressalta o papel dos governos na captação de recursos externos.

Abstract The objective of this is study is to assert the role of domestic financial system as mitigating of sudden stops episodes and driver of capital flows in a group of 14 emerging economies in the period of 1999-2013, especially in face of unfavorable external environment such as high international interest rate or global risk aversion. The countries analyzed - Argentina, Brazil, Chile, Colombia, Indonesia, Malaysia, Mexico, Peru, Philippines, Russia, South Africa, Thailand, Turkey and Ukraine, represented in August 2014 roughly 80% of the EMBIPLUS and 60% of EMBIGLOBAL. We work with distinct types of capital flows: Inflow of Foreign Direct Investment, Inflow of Portfolio and Net Capital, and conduct robustness check considering data since 1990 and increasing the number of emerging countries. The result supports evidence that improvement of domestic financial system allows an increase of capital flow and a decrease of sudden stops probability. Estimates also indicate that domestic fundamentals are as important as global factors in explaining capital flows and sudden stops episodes. This fact supports public policies that improve the development and strength of domestic financial system in emerging economies and stress the government role in attracting external capital.

https://doi.org/10.1590/0101-416147212kam 3793 downloads

11.

Conceitos básicos sobre a física da formação de tubos de fluxo magnético nas proximidades da Terra
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Ferreira, Pedro Pires

; Silveira, Marcos Vinicius Dias

; Cardoso, Flavia Reis

; Koga, Daiki

; Souza, Vitor Moura Cardoso e Silva

; Vieira, Luis Eduardo Antunes

; Pérez, Germán Fariñas

; Cuadros-Melgar, Bertha M.

; Gonzalez, Walter D.

; Santos, Eduardo Ferro dos

Revista Brasileira de Ensino de Física

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2017, Volume 39 N. 2 elocation e2307

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

Em 1978 Christopher T. Russell e Richard C. Elphic detectaram tubos de fluxo magnético na região de fronteira da magnetosfera terrestre por meio de dados observacionais obtidos pelos satélites ISEE-1 e −2, que foram denominados eventos de transferência de fluxo, ou simplesmente FTE (do inglês, flux transfer events). O vento solar, juntamente com o campo magnético interplanetário, oriundos do Sol, atingem a região de campo magnético terrestre, produzindo fenômenos como a reconexão magnética e os tubos de fluxo. Esse artigo apresenta uma introdução sobre a conexão Sol-Terra e o processo de reconexão magnética, e principalmente, os conceitos básicos sobre a geração e a formação dos tubos de fluxo magnético. Os modelos que descrevem o tipo de reconexão e as características dos tubos, como por exemplo Russell-Elphic, Lee-Fu e Southwood-Scholer, e as propriedades dos eventos FTE, são apresentados de forma clara e concisa. Por fim, o artigo trata de um exemplo de identificação dos tubos em simulação computacional, realizado nesse trabalho.

In 1978 Christopher T. Russell and Richard C. Elphic detected magnetic flux tubes in magnetosphere boundary region through observational data obtained from the satellites ISEE-1 and −2, which were named flux transfer events (FTE). The solar wind together with the interplanetary magnetic field, both originated in the Sun, reach the earth magnetic field region, producing the magnetic reconnection and the flux tubes phenomena. This paper presents an introduction on the Sun-Earth connection and the magnetic reconnection process, and mainly the basic concepts on the tubes generation and formation. The models which describe the type of reconnection and the tubes signatures, for example, Russell-Elphic, Lee-Fu, Southwood-Scholer, and the FTE event characteristics, are presented in a clear and concise way. Finally, this paper brings an example of the tubes identification in computing simulation, performed in this work.

https://doi.org/10.1590/1806-9126-rbef-2016-0190 2505 downloads

12.

SPATIAL STRUCTURE OF Theobroma subincanumMart. AND Theobromaspeciosum Willd. ex Spreng.IN THE PARQUE NACIONAL DO JURUENA, MATO GROSSO STATE, BRAZIL
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Dardengo, Juliana de Freitas Encinas

; Rossi, Ana Aparecida Bandini

; Silva, Carolina Joana da

; Silveira, Marcos

Revista Árvore

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2017, Volume 41 N. 1 elocation e410101

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

RESUMO A análise dos padrões de distribuição espacial é uma ferramenta muito utilizada para entender o comportamento ecológico das espécies, pois embasa estratégias de manejo e influencia na estrutura populacional. Com o objetivo de estudar a estrutura horizontal das espécies T. speciosum (Cacauí) e T. subincanum (Cupuí), , foi implementada uma grade de 200 x 160 m, dividida em 40 subparcelas de 20 x 40 m no Parque Nacional do Juruena - Mato Grosso. Nestas parcelas foram mensurados todos os indivíduos que apresentaram DAP > 1 cm. Os seguintes parâmetros foram analisados: número de indivíduos; densidade; altura total; área basal; distribuição diamétrica e distribuição espacial. A pesquisa amostrou 165 árvores de T. speciosum (51.56 ind.ha-1) e 34 de T. subincanum (10.62 ind.ha-1) com diâmetro médio de 6.72 e 12.44 cm respectivamente. Em relação à distribuição espacial, T. speciosum apresentou padrão de distribuição agregado, enquanto T. subincanum padrão aleatório. A distribuição diamétrica de T. speciosum seguiu uma distribuição exponencial em forma de "J" invertido, comportamento esperado para um ambiente florestal com pouca pressão antrópica, já T. subincanum não seguiu o mesmo padrão, entretanto as espécies demonstraram estar bem estabelecidas na área, com número de indivíduos significativo em todas as classes diamétricas, assim, os resultados apontam a importância de áreas de conservação como forma instituída para salvaguardar ambientes naturais das pressões exercidas por diferentes ações antrópicas e também a necessidade de estudos na região do bioma amazônico.

ABSTRACT Analysis of the spatial distribution is a very useful tool to understand the ecological behavior of the species in that it provides information that underlies management strategies and influences the population structure. To study the horizontal structure of the species T. speciosum (Cacaui) and T. subincanum (Cupui) in the "Parque Nacional do Juruena", Mato Grosso state, a 200 x 160 m grid was implemented and divided into 40 adjacent 20 x 40 m subplots. All individuals of the species under study that had DBH > 1 cm were measured. The following parameters were analyzed: number of individuals, density, total height, basal area, diametric distribution, and spatial distribution. The research sampled 165 T. speciosum trees (51.56 ind.ha-1) and 34 T. subincanum (10.62 ind.ha-1), with an average diameter of 6.72 cm and 12.44 respectively, the T. speciosum individuals showed an aggregated distribution pattern, while the T. subincanum individuals presented a random pattern. The diametric distribution of T. speciosum followed an exponential distribution in a reverse-J shaped pattern, behavior expected for a forest environment with little anthropic pressure, while T. subincanum did not follow the same pattern, though the species demonstrated to be well established in the area, with significant number of individuals in all diameter classes, thus,the results indicate the importance of conservation areas established in order to safeguard the natural environment from the pressures of anthropic actions, and also the need for studies in the region of the Amazon biome.

https://doi.org/10.1590/1806-90882017000100001 1740 downloads

13.

THE HEALTH GAP: THE CHALLENGE OF AN UNEQUAL WORLD
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Lucca-Silveira, Marcos Paulo de

Cadernos de Saúde Pública

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nov 2016, Volume 32 N. 11 elocation e00130716

Abstract: En | Text: En | PDF: En

https://doi.org/10.1590/0102-311x00130716 4914 downloads

14.

The subject of social justice: a defence of the basic structure of society
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Lucca-Silveira, Marcos Paulo de

Brazilian Political Science Review

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2016, Volume 10 N. 2 elocation e0006

Abstract: En | Text: En | PDF: En

In The Idea of Justice (2009), Amartya Sen presents an approach to justice that seeks to make comparisons based on social realizations. This approach focuses attention both on real political-social institutions and on people's behaviour, as well as other potential influences affecting the degree of justice existing in a given society. The new theoretical proposal advanced by Sen (2009) differs then from the theory of justice formulated by John Rawls (1999a) and other contemporary theorists. In the eyes of the Indian author, the theory formulated by Rawls searches for solutions to questions of perfect justice and suffers from problems of feasibility and redundancy. In this article, I argue, centring attention on the question of the appropriate primary subject of social justice, that the critique and subsequent proposal for change of the subject of justice presented by Sen (2009) can be judged mistaken. From a liberal-egalitarian perspective, the primary subject of social justice should be the basic structure of society as formulated by Rawls. Hence I explore the idea that Rawls's option to focus on this subject is directly associated with this particular conception of social justice. I also look to show that Sen's (2009) critique of the redundancy of contemporary theories of justice can be considered implausible. I argue that an ideal theory, such as the one formulated by Rawls, is central to practical guidelines for actions that seek to lessen injustices in real life situations.

https://doi.org/10.1590/1981-38212016000200006 7126 downloads

15.

THE HEALTH GAP: THE CHALLENGE OF AN UNEQUAL WORLD
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Lucca-Silveira, Marcos Paulo de

Cadernos de Saúde Pública

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2016, Volume 32 N. 11 elocation e00130716

Abstract: En | Text: En | PDF: En

https://doi.org/10.1590/0102-311x00130716 328 downloads

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