Article
Environmental Studies
Valter M. Azevedo-Santos, Vanessa S. Daga, Livia H. Tonella, Renata Ruaro, Marlene S. Arcifa, Philip M. Fearnside, Tommaso Giarrizzo
Summary: Brazil's Forest Code requires the preservation of Permanent Preservation Areas (APPs) along watercourses. However, a recently approved law undermines this requirement by allowing municipalities to define APP widths and potentially eliminate urban APPs. This is problematic as it would result in negative effects on aquatic ecosystems and biodiversity in cities. Repealing the law and prioritizing the conservation of urban terrestrial and aquatic ecosystems are necessary.
Article
Biodiversity Conservation
Rebecca Catherine Brock, Andy Arnell, Will Simonson, Aline C. Soterroni, Aline Mosnier, Fernando Ramos, Alexandre Xavier Ywata de Carvalho, Gilberto Camara, Johannes Pirker, Michael Obersteiner, Valerie Kapos
Summary: Meeting Brazil's national commitments on climate change and biodiversity conservation depends on securing forest carbon and biodiversity reserves. The Forest Code is a key tool for reconciling environmental preservation and agricultural production, but not all provisions of the law have been fully implemented. By using land use change projections, it is shown that full enforcement of the law has the potential to contribute to conserving biodiversity.
BIODIVERSITY AND CONSERVATION
(2021)
Article
Chemistry, Multidisciplinary
Kentaro Fujita, Yuanyu Zhang, Masahiro Sasabe, Shoji Kasahara
Summary: This paper investigates the issue of mining pool selection in the presence of a Block Withholding (BWH) attack in current Proof-of-Work (PoW) blockchain systems. The research shows that mining pools can attract more miners to join by launching a BWH attack and the attack power significantly affects the stable pool populations.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Electrical & Electronic
C. U. Nan, L. I. U. Shengli
Summary: The study focuses on analyzing the resistance of MAC schemes in the face of key-shift attacks and selectively chosen message attacks, based on the Learning parity with noise (LPN) and the Learning with errors (LWE) problem by Kiltz et al. in EUROCRYPT 2011. The research shows that MAC schemes from LPN/LWE are capable of resisting key-shift attacks and supporting a subclass of affine functions.
CHINESE JOURNAL OF ELECTRONICS
(2021)
Article
Business
Mario Papik, Lenka Papikova
Summary: The accounting fraud detection models developed based on US GAAP financial data perform poorly compared to models based on different accounting standards. However, this study achieves higher model performance by using data from other accounting standards. In addition, the study provides an extensive literature review, enhancing the existing US fraud data mining literature.
INTERNATIONAL JOURNAL OF ACCOUNTING INFORMATION SYSTEMS
(2022)
Article
Computer Science, Information Systems
Ruohan Cao, Hui Gao, Yueming Lu
Summary: This paper investigates channel estimation against jamming attack in a single cell massive MIMO system. It analyzes the empirical distribution and characteristic function of the received signals and proposes a channel estimation method based on alphabet decomposition, which achieves good performance in both analysis and simulation.
IEEE SYSTEMS JOURNAL
(2023)
Article
Computer Science, Information Systems
Pouya Pourtahmasbi, Mehrdad Nojoumian
Summary: Through a simulated mining platform experiment, it was found that the reputation-based mining paradigm can reduce block withholding attacks and increase miners' revenue, but there are still certain false positive issues that need to be addressed.
BLOCKCHAIN-RESEARCH AND APPLICATIONS
(2022)
Proceedings Paper
Automation & Control Systems
Jianyong Tuo, Guangyu Qin, Kailun Shang, Youqing Wang
Summary: This paper proposes a new model for analyzing block withholding attack in multiple mining pools. Simulation results show that launching the attack alone may not necessarily help attract miners and the timing of the attack also plays a vital role.
2022 41ST CHINESE CONTROL CONFERENCE (CCC)
(2022)
Article
Plant Sciences
Analu Zanotti-Avila, Valeria Ferreira Fernandes, Kallyne Ambrosio Barros, Valdnea Casagrande Dalvi, Aristea Alves Azevedo, Renata Maria Strozi Alves Meira
Summary: Unusual nectaries in Gentianaceae have unique anatomical features and their secretion and exudation mechanisms involve distinct organelles.
Article
Ecology
Danilo Boscolo, Barbara Nobrega Rodrigues, Patricia Alves Ferreira, Luciano Elsinor Lopes, Vinicius Rodrigues Tonetti, Isabela Cristhina Reis dos Santos, Juliana Akemi Hiruma-Lima, Laura Nery, Karoline Baptista de Lima, Jessica Perozi, Andre Victor Lucci Freitas, Blandina Felipe Viana, Caio Antunes-Carvalho, Dalton de Souza Amorim, Favizia Freitas de Oliveira, Milton Groppo, Maria Lucia Absy, Renata Jimenez de Almeida-Scabbia, Anderson Alves-Araujo, Felipe Wanderley de Amorim, Pablo Augusto Poleto Antiqueira, Yasmine Antonini, Camila Aoki, Daniele dos Santos Aragao, Tais Cristina Teixeira Balbino, Michele da Silva Ferreira Bandeira, Bruno Correa Barbosa, Maria Regina de Vasconcellos Barbosa, Gudryan Jackson Baronio, Levi Oliveira Barros, Mariana Beal-Neves, Victor Martins Bertollo, Antonio Diego de Melo Bezerra, Cristiano Roberto Buzatto, Liedson Tavares Carneiro, Edilson Caron, Camila Silva Carpim, Emanuela Simoura Carvalho, Tuane Leticia Carvalho, Ludimila Juliele Carvalho-Leite, Mainara Figueiredo Cascaes, Flavio Siqueira de Castro, Adriano Cavalleri, Eliana Cazetta, Monise Terra Cerezini, Luis Francisco Mello Coelho, Renato Colares, Guaraci Duran Cordeiro, Juliana Hipolito, Angela Maria da Silva Correa, Fernanda Vieira da Costa, Cleber Covre, Renata Drummond Marinho Cruz, Oswaldo Cruz-Neto, Leo Correia-da-Rocha-Filho, Jacques Hubert Charles Delabie, Marcos da Costa Dorea, Viviany Teixeira do-Nascimento, Jean Miguel Alves dos-Santos, Marcelo Duarte, Marilia Cristina Duarte, Olivia Maria Pereira Duarte, Julie Henriette Antoinette Dutilh, Betina Pereira Emerick, Gabrielly dos Santos Fabiano, Fernando Henrique Antoniolli Farache, Ana Paula Gelli de Faria, Geraldo Wilson Fernandes, Pedro Maria Abreu Ferreira, Maria Juliana Ferreira-Caliman, Livia Maria Negrini Ferreira, Tulio Freitas Filgueira de Sa, Edivani Villaron Franceschinelli, Greice Ayra Franco-Assis, Frederico de Siqueira Neves, Breno Magalhaes Freitas, Joelcio Freitas, Natalia Arias Galastri, Leonardo Galetto, Caroline Tito Garcia, Maria Teresa Amela Garcia, Nicole Luize Garcia, Carlos Alberto Garofalo, Irene Gelvez-Zuniga, Camila da Silva Goldas, Tadeu Jose Guerra, Tania Mara Guerra, Birgit Harter-Marques, Juliana Hipolito, Rafael Martins, Ricardo Pablo Klein, Elmo Borges de Azevedo Koch, Paulo Landgref-Filho, Sebastiao Laroca, Cristiane Martins Leandro, Reinanda Lima, Taysla Roberta Almeida de Lima, Luiz Wilson Lima-Verde, Elton John de Lirio, Ariadna Valentina Lopes, Andrea Pereira Luizi-Ponzo, Isabel Cristina Sobreira Machado, Tatiana Machado, Fabricio Severo Magalhaes, Thiago Mahlmann, Clea dos Santos Ferreira Mariano, Thamy Evellini Dias Marques, Felipe Martello, Celso Feitosa Martins, Mauricio Nogueira Martins, Rafael Martins, Andre Luiz Santos Mascarenhas, Geovana de Assis Mendes, Milton de Souza Mendonca, Luiz Menini Neto, Michaele Alvim Milward-de-Azevedo, Adrianne Oliveira Miranda, Paula Maria Montoya-Pfeiffer, Andreza Magro Moraes, Bruna Borges Moraes, Eduardo Freitas Moreira, Maria Santina Morini, Diego Moure-Oliveira, Leticia Fabri De Nadai, Victor Hideki Nagatani, Michelle Helena Nervo, Frederico de Siqueira Neves, Jailson Santos de Novais, Evellyn Silva Araujo-Oliveira, Joao Henrique Figueredo de Oliveira, Alipio Jose de Souza Pacheco-Filho, Luciano Palmieri, Martin Pareja, Marcella de Almeida Passarella, Nayra da Mata Passos, Hipolito Ferreira Paulino-Neto, Ariane Luna Peixoto, Luciana Carvalho Pereira, Rodrigo Augusto Santinelo Pereira, Brenda Pereira-Silva, Jimmy Pincheira-Ulbrich, Mardiore Pinheiro, Augusto Joao Piratelli, Luciana Regina Podgaiski, Diego Santos Polizello, Livia Pires do Prado, Fabio Prezoto, Franciele Rosset de Quadros, Elisa Pereira Queiroz, Zelma Glebya Maciel Quirino, Ananza Mara Rabello, Gabriela Beatriz Pereira Rabeschini, Monna Myrnna Mangueira Ramalho, Flavio Nunes Ramos, Ludmila Rattis, Luiz Henrique Goncalves de Rezende, Caroline Ribeiro, Lizandra Jaqueline Robe, Ely Marley de Souza Ribeiro Rocha, Ricardo Ribeiro Rodrigues, Gustavo Quevedo Romero, Nadia Roque, William de Oliveira Sabino, Paulo Takeo Sano, Patricia da Silva Santana Reis, Fernando Silva dos Santos, Isabel Alves dos Santos, Francisco de Assis Ribeiro dos Santos, Igor Silva dos Santos, Ricardo Sartorello, Hermes Jose Schmitz, Maria Rosangela Sigrist, Juvenal Cordeiro Silva Junior, Ana Carolina Granero e Silva, Carolina Veronese Correa da Silva, Beatriz Symara Alves Vieira Silva, Bruna Leticia de Freitas Silva, Claudia Ines Silva, Fabiana Oliveira da Silva, Jessica Luiza Souza e Silva, Nathalia Sampaio Silva, Otavio Guilherme Morais da Silva, Carlos de Melo e Silva Neto, Edito Romao Silva Neto, Denise Silveira, Maxwell Souza Silveira, Rodrigo Bustos Singer, Leiza Aparecida Souza Serafim Soares, Evelise Marcia Locatelli de Souza, Jana Magaly Tesserolli de Souza, Josefina Steiner, Mara Cristina Teixeira-Gamarra, Bruno Alves Trentin, Isabela Galarda Varassin, Gabriel Vila-Verde, Vania Nobuko Yoshikawa, Elisabete Maria Zanin, Mauro Galetti, Milton Cezar Ribeiro
Summary: Encounters between flowers and invertebrates play a crucial role in tropical forest ecosystems. This study aims to provide a comprehensive database of flower-invertebrate interactions in the Atlantic Forest. The dataset includes over 18,000 interaction records forming 482 networks, involving 641 plant genera and 581 invertebrate genera. The study highlights the knowledge gap in canopy flower-invertebrate interactions and the need for further research in remote forested areas.
Article
Forestry
Ana Carolina Tavora, Micheline Carvalho-Silva, Eliel de Jesus Amaral, Monica A. Cupertino-Eisenlohr, Eloisa Nogueira, Cassia Beatriz R. Munhoz
Summary: The understories of tropical forests can be classified into permanent and transient understory, with the latter being more diverse. This study examined the composition, structure, diversity, and the relative contribution of growth forms in the permanent and transient understories of gallery forests in the Brazilian Cerrado. Tree seedlings were the most common growth form, followed by shrubs and lianas. This study provides valuable information for the ecological restoration and conservation of gallery forests in the Cerrado.
Article
Environmental Sciences
Paulo E. A. S. Camara, Micheline Carvalho-Silva, Daiane Valente Valente, Diego Knop Henriques, Eduardo Toledo De Amorim, Wellington Santos Fava, Hans (J. D. ) Kruijer, Michael Stech
Summary: The occurrence of species in both polar regions is a common phenomenon in the Antarctic flora. This study focuses on the bipolar bryophyte Roaldia revoluta and investigates its bipolarity and intraspecific variation through molecular and morphological analysis. The results show that R. revoluta has a consistent distribution pattern and no significant morphological differences among populations from both polar regions. The classification of Roaldia dolomitica as a separate species from R. revoluta is not strongly supported by the data.
Review
Biodiversity Conservation
Paulo Roberto Furlanetto Amorim, Karina Shizue Gadelha Kubota, Micheline Carvalho-Silva
Summary: The Neotropical region is home to the most diverse flora, and Piper is the most diverse genus in the region with 1,908 accepted species. A knowledge synthesis of Piper diversity, distribution and conservation in the region is crucial for resource allocation and conservation priorities. A systematic examination of available scientific evidence revealed a scarcity of research on Neotropical Piper species diversity, distribution, and conservation, presenting opportunities for new projects.
BIODIVERSITY AND CONSERVATION
(2023)
Article
Plant Sciences
Natania Pereira Pinto-Silva, Katiuscia Freire De Souza, Otavio Luis Marques Silva, Narah Costa Vitarelli, Amanda Da Paixao Noronha Pereira, Deborah Aragao Soares, Rodolfo Carneiro Sodre, Debora Medeiros, Maria Beatriz Rossi Caruzo, Daniela Santos Carneiro Torres, Marcos Jose Da Silva, Renata Maria Strozi Alves Meira, Ricarda Riina, Ana Carla Feio
Summary: Trichomes are functional traits that protect plants and provide useful characters for species characterization. In this study, we focused on trichomes in the megadiverse genus Croton, and proposed a new classification based on well-defined parameters, which clarifies existing redundancies and is consistent with anatomical evidence. This contribution will improve communication among taxonomists and promote meaningful morphological comparability in systematic studies.
BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
(2023)
Article
Plant Sciences
Gabriel Henrique Gomes de Souza Freitas Teixeira, Ana Carolina Mezzonato-Pires, Lamarck Rocha, Vania Goncalves-Esteves, Claudia Barbieri Ferreira Mendonca
Summary: In this study, a palynological investigation was conducted on 20 heterostylous species of the genus Piriqueta, with a focus on their pollen morphology. The examination revealed significant variations in pollen shape among different floral morphs. These findings highlight the importance of considering the floral morphs when describing the pollen of heterostylous species.
PLANT SYSTEMATICS AND EVOLUTION
(2023)
Article
Biodiversity Conservation
Luiz Antonio Costa Rodrigues, Claudia Barbieri Ferreira Mendonca, Marcus Vinicius Vaughan Jennings Licinio, Kamila da Matta Agostini, Alexandre Santos Alencar, Vania Goncalves-Esteves
Summary: This study aimed to investigate the feasibility of using pollen grains as biomarkers of atmospheric transport between South America and Antarctica. Palynological analysis of snow samples collected in 2005 revealed the presence of spores and pollen grains from South America. The use of the Hybrid Single-Particle Lagrangian Integrated Trajectory model showed that the Andes serve as a heat source for pollen transport, confirming the feasibility of using pollen grains as biomarkers.
Article
Plant Sciences
Miller Melo Sanches, Isabel Reis Guesdon, Renata Maria Strozi Alves Meira
Summary: Lophopterys floribunda is an endemic species of Malpighiaceae in Brazil, displaying unique secretory structures in its flowers. The presence of different secretory structures in the petals, bracts, and bracteoles has been observed, which have mutualistic associations with ants and enable a specific visitation pattern. These findings have significant implications for the systematic and ecological studies of Malpighiaceae.
Article
Biology
Vivian N. N. Goncalves, Juan M. M. Lirio, Silvia H. H. Coria, Fabyano A. C. Lopes, Peter Convey, Fabio S. de Oliveira, Micheline Carvalho-Silva, Paulo E. A. S. Camara, Luiz H. H. Rosa
Summary: In this study, the fungal organisms present in soils at James Ross Island, north-east Antarctic Peninsula, were characterized using DNA metabarcoding. The detected taxa included widely-distributed phyla such as Ascomycota, Basidiomycota, and Mortierellomycota, as well as uncommon phyla such as Chytridiomycota, Rozellomycota, Monoblepharomycota, Zoopagomycota, and Basidiobolomycota. Unknown fungi and taxa identified at different taxonomic levels dominated the assemblages. The fungal sequence assemblages exhibited high diversity and richness, and moderate dominance, with the presence of saprophytic, pathogenic, and symbiotic fungi.
Article
Plant Sciences
Thayna Rosa Batista Martins, Raquel Maria Batista Souza-Souza, Wellerson Picanco Leite, Roberto Lourenco Esteves, Claudia Barbieri Ferreira Mendonca, Vania Goncalves-Esteves
Summary: This study presents a pollen analysis of 13 species of Dendrophorbium in Brazil, aiming to contribute to the taxonomy of the group. The examination of the pollen grains revealed that they are monadic, medium-sized, and have specific aperture shape and echinus characteristics that differentiate the species.
Article
Plant Sciences
Simone Cartaxo-Pinto, Ilgner Fernando Tavares Vieira, Jeane Marinho Nascimento, Vinicius R. Bueno, Gustavo Heiden, Claudia Barbieri Ferreira Mendonca, Vania Goncalves-Esteves
Summary: This study characterized the pollen morphology of eight species from Calea sect. Meyeria, based on acetolyzed and unacetolyzed pollen grains. Despite the similarities, differences were observed in pollen size, polar area, sexine ornamentation, and endoaperture characteristics. Palynological analysis provided new information for species distinction within Calea sect. Meyeria.
Article
Plant Sciences
Simone Cartaxo-Pinto, Marcelo Fernando Devecchi, Jose Rubens Pirani, Claudia Barbieri Ferreira Mendonca, Vania Goncalves-Esteves
Summary: In this study, the pollen morphology and ultrastructure of 36 species from Simaroubaceae family were examined. The results showed that there were significant variations in pollen features among different taxa, with most species exhibiting reticulate ornamentation.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2023)
Article
Plant Sciences
Joao Victor da Costa Santos, Isabel Reis Guesdon, Andre Marcio Araujo Amorim, Renata Maria Alves Strozi Meira
Summary: This study investigates the anatomical leaf characteristics of the Acridocarpus genus and its relationship with the environment. The study finds that the leaves have xeromorphic features adapted to arid environments, which can be used for taxonomy.
SOUTH AFRICAN JOURNAL OF BOTANY
(2023)
