15 research outputs found
Terminal LTE flexível
Mstrado em Engenharia Eletrónica e TelecomunicaçõesAs redes móveis estão em constante evolução. A geração atual (4G) de
redes celulares de banda larga e representada pelo standard Long Term
Evolution (LTE), definido pela 3rd Generation Partnership Project (3GPP).
Existe uma elevada procura/uso da rede LTE, com um aumento exponencial
do número de dispositivos móveis a requerer uma ligação à Internet de alto
débito. Isto pode conduzir à sobrelotação do espetro, levando a que o sinal
tenha que ser reforçado e a cobertura melhorada em locais específicos, tal
como em grandes conferências, festivais e eventos desportivos. Por outro
lado, seria uma vantagem importante se os utilizadores pudessem continuar
a usar os seus equipamentos e terminais em situações onde o acesso a redes
4G é inexistente, tais como a bordo de um navio, eventos esporádicos em
localizações remotas ou em cenários de catástrofe, em que as infraestruturas
que permitem as telecomunicações foram danificadas e a cobertura
temporária de rede pode ser decisiva em processos de salvamento. Assim
sendo, existe uma motivação clara por trás do desenvolvimento de uma
infraestrutura celular totalmente reconfigurável e que preencha as características mencionadas anteriormente.
Uma possível abordagem consiste numa plataforma de rádio definido por
software (SDR), de código aberto, que implementa o standard LTE e corre
em processadores de uso geral (GPPs), tornando possível construir uma rede
completa investindo somente em hardware - computadores e front-ends de
radiofrequência (RF). Após comparação e análise de várias plataformas LTE
de código aberto foi selecionado o OpenAirInterface (OAI) da EURECOM,
que disponibiliza uma implementação compatível com a Release 8.6 da
3GPP (com parte das funcionalidades da Release 10).
O principal objectivo desta dissertação é a implementação de um User
Equipment (UE) flexível, usando plataformas SDR de código aberto que corram
num computador de placa única (SBC) compacto e de baixa potência,
integrado com um front-end de RF - Universal Software Radio Peripheral
(USRP). A transmissão de dados em tempo real usando os modos de duplexagem
Time Division Duplex (TDD) e Frequency Division Duplex (FDD) é suportada e a reconfiguração de certos parâmetros é permitida, nomeadamente
a frequência portadora, a largura de banda e o número de Resource
Blocks (RBs) usados. Além disso, é possível partilhar os dados móveis LTE
com utilizadores que estejam próximos, semelhante ao que acontece com
um hotspot de Wi-Fi. O processo de implementação é descrito, incluindo
todos os passos necessários para o seu desenvolvimento, englobando o port
do UE de um computador para um SBC. Finalmente, a performance da rede
é analisada, discutindo os valores de débitos obtidos.Mobile networks are constantly evolving. 4G is the current generation of
broadband cellular network technology and is represented by the Long Term
Evolution (LTE) standard, de ned by 3rd Generation Partnership Project
(3GPP). There's a high demand for LTE at the moment, with the number
of mobile devices requiring an high-speed Internet connection increasing exponentially.
This may overcrowd the spectrum on the existing deployments
and the signal needs to be reinforced and coverage improved in speci c sites,
such as large conferences, festivals and sport events. On the other hand,
it would be an important advantage if users could continue to use their
equipment and terminals in situations where cellular networks aren't usually
available, such as on board of a cruise ship, sporadic events in remote
locations, or in catastrophe scenarios in which the telecommunication infrastructure
was damaged and the rapid deployment of a temporary network
can save lives. In all of these situations, the availability of
exible and easily
deployable cellular base stations and user terminals operating on standard
or custom bands would be very desirable. Thus, there is a clear motivation
for the development of a fully recon gurable cellular infrastructure solution
that ful lls these requirements.
A possible approach is an open-source, low-cost and low maintenance
Software-De ned Radio (SDR) software platform that implements the LTE
standard and runs on General Purpose Processors (GPPs), making it possible
to build an entire network while only spending money on the hardware
itself - computers and Radio-Frequency (RF) front-ends. After comparison
and analysis of several open-source LTE SDR platforms, the EURECOM's
OpenAirInterface (OAI) was chosen, providing a 3GPP standard-compliant
implementation of Release 8.6 (with a subset of Release 10 functionalities).
The main goal of this dissertation is the implementation of a
exible opensource
LTE User Equipment (UE) software radio platform on a compact
and low-power Single Board Computer (SBC) device, integrated with an
RF hardware front-end - Universal Software Radio Peripheral (USRP). It
supports real-time Time Division Duplex (TDD) and Frequency Division
Duplex (FDD) LTE modes and the recon guration of several parameters,
namely the carrier frequency, bandwidth and the number of LTE Resource
Blocks (RB) used. It can also share its LTE mobile data with nearby users,
similarly to a Wi-Fi hotspot. The implementation is described through
its several developing steps, including the porting of the UE from a regular
computer to a SBC. The performance of the network is then analysed based
on measured results of throughput
Mitochondrial haplogroup H1 is protective for ischemic stroke in Portuguese patients
<p>Abstract</p> <p>Background</p> <p>The genetic contribution to stroke is well established but it has proven difficult to identify the genes and the disease-associated alleles mediating this effect, possibly because only nuclear genes have been intensely investigated so far. Mitochondrial DNA (mtDNA) has been implicated in several disorders having stroke as one of its clinical manifestations. The aim of this case-control study was to assess the contribution of mtDNA polymorphisms and haplogroups to ischemic stroke risk.</p> <p>Methods</p> <p>We genotyped 19 mtDNA single nucleotide polymorphisms (SNPs) defining the major European haplogroups in 534 ischemic stroke patients and 499 controls collected in Portugal, and tested their allelic and haplogroup association with ischemic stroke risk.</p> <p>Results</p> <p>Haplogroup H1 was found to be significantly less frequent in stroke patients than in controls (OR = 0.61, 95% CI = 0.45–0.83, p = 0.001), when comparing each clade against all other haplogroups pooled together. Conversely, the pre-HV/HV and U mtDNA lineages emerge as potential genetic factors conferring risk for stroke (OR = 3.14, 95% CI = 1.41–7.01, p = 0.003, and OR = 2.87, 95% CI = 1.13–7.28, p = 0.021, respectively). SNPs m.3010G>A, m.7028C>T and m.11719G>A strongly influence ischemic stroke risk, their allelic state in haplogroup H1 corroborating its protective effect.</p> <p>Conclusion</p> <p>Our data suggests that mitochondrial haplogroup H1 has an impact on ischemic stroke risk in a Portuguese sample.</p
Canagliflozin and renal outcomes in type 2 diabetes and nephropathy
BACKGROUND Type 2 diabetes mellitus is the leading cause of kidney failure worldwide, but few effective long-term treatments are available. In cardiovascular trials of inhibitors of sodium–glucose cotransporter 2 (SGLT2), exploratory results have suggested that such drugs may improve renal outcomes in patients with type 2 diabetes. METHODS In this double-blind, randomized trial, we assigned patients with type 2 diabetes and albuminuric chronic kidney disease to receive canagliflozin, an oral SGLT2 inhibitor, at a dose of 100 mg daily or placebo. All the patients had an estimated glomerular filtration rate (GFR) of 30 to <90 ml per minute per 1.73 m2 of body-surface area and albuminuria (ratio of albumin [mg] to creatinine [g], >300 to 5000) and were treated with renin–angiotensin system blockade. The primary outcome was a composite of end-stage kidney disease (dialysis, transplantation, or a sustained estimated GFR of <15 ml per minute per 1.73 m2), a doubling of the serum creatinine level, or death from renal or cardiovascular causes. Prespecified secondary outcomes were tested hierarchically. RESULTS The trial was stopped early after a planned interim analysis on the recommendation of the data and safety monitoring committee. At that time, 4401 patients had undergone randomization, with a median follow-up of 2.62 years. The relative risk of the primary outcome was 30% lower in the canagliflozin group than in the placebo group, with event rates of 43.2 and 61.2 per 1000 patient-years, respectively (hazard ratio, 0.70; 95% confidence interval [CI], 0.59 to 0.82; P=0.00001). The relative risk of the renal-specific composite of end-stage kidney disease, a doubling of the creatinine level, or death from renal causes was lower by 34% (hazard ratio, 0.66; 95% CI, 0.53 to 0.81; P<0.001), and the relative risk of end-stage kidney disease was lower by 32% (hazard ratio, 0.68; 95% CI, 0.54 to 0.86; P=0.002). The canagliflozin group also had a lower risk of cardiovascular death, myocardial infarction, or stroke (hazard ratio, 0.80; 95% CI, 0.67 to 0.95; P=0.01) and hospitalization for heart failure (hazard ratio, 0.61; 95% CI, 0.47 to 0.80; P<0.001). There were no significant differences in rates of amputation or fracture. CONCLUSIONS In patients with type 2 diabetes and kidney disease, the risk of kidney failure and cardiovascular events was lower in the canagliflozin group than in the placebo group at a median follow-up of 2.62 years
I Congresso Ibero-Americano de Bibliotecas Escolares
Actas de la primera edición del I Congreso Iberoamericano de Bibliotecas Escolares, CIBES 2015, organizado por la Universidad Carlos III de Madrid (España), la Universidad Estatal Paulista (Brasil) y el Ayuntamiento de Getafe (España). Celebrado: 21 - 23 de octubre de 2015 en la Universidad Estatal Paulista (Marília) y 26 - 28 de octubre de 2015 en la Universidad Carlos III de Madrid (Getafe)Universidad Carlos III de Madrid (España)Universidad Estatal Paulista (Brasil)Ayuntamiento de Getafe (España)Dimensiones y visiones de la biblioteca escolar en una Educación por competencias: la
necesidad de una política estratégica / Miguel Ángel Marzal. -- Getafe ciudad educadora,
lectora y escritora: Bibliotecas escolares / Lourdes Muñoz Santiuste. -- Presente y
futuro: biblioteca escolar-CREA y proyectos interdisciplinares / Rosa Piquín. -- Cultura
en información: un reto esencial de la biblioteca escolar / Mónica Baró. -- Bibliotecas
escolares de Galicia: un mundo de oportunidades a favor de la Educación / Cristina Novoa.
-- 10 años de la Red de Bibliotecas Escolares de Extremadura (REBEX) / Casildo Macías
Pereira. -- Biblioteca Escolar y uso ético de la información para una Cultura de Paz / Ana
Barrero Tíscar. -- Dinamización de la Biblioteca Escolar Plumita durante el curso escolar
2014/15 / María Antonia Cano Cañada. -- Experiencia de la creación de una biblioteca
escolar / Susana Santos Martín. -- Grupo cooperativo Bibliotecas escolares en Red-Albacete
/ José Manuel Garrido Argandoña y Eva Leal Scasso. -- La BCREA "Juan Leiva". El fomento de
la lectura desde la web social / Andrés Pulido Villar. -- Proceso de implantación de una
herramienta de autoevaluación en la red de bibliotecas escolares de Extremadura (REBEX) /
Casildo Macías Pereira. -- La biblioteca escolar: abriendo fronteras / Lorena Verónica
Cabrera Orellana. -- O programa RBE e a avaliaçao das bibliotecas escolares: melhoria,
desenvolvimiento e innovaçao / Elsa Conde. -- Profesional de Biblioteconomía y
Documentación: esencial en la plantilla de la escuela / Pilar del Campo Puerta. -- Una
mirada activa al proceso educativo desde la biblioteca escolar / María Jesús Fontela
Fernández . -- Con otra mirada "La ilustración como vehículo de comunicación y aprendizaje
en las bibliotecas escolares" / Pablo Jurado Sánchez-Galán. -- Fingertips. Recriar a
biblioteca escolar na sala de aula / Rui Alfonso Mateus. -- Hablemos de libros. Cómo
transformar una clase de literatura en una comunidad de interpretación de textos /
Francisco César Díaz Rey. -- Inclusión social de familias inmigrantes a través de un
programa de aprendizaje de la lengua castellana / Ana Carmen Tolino Fernández-Henarejos.
-- O desenvolvimento de atividades de mediação de leitura em biblioteca escolar: o caso da
biblioteca da Escola Sesc de Ensino Médio / Vagner Amaro. -- La biblioteca escolar.
Proceso de enseñanza-aprendizaje de padres a hijos / Ana Carmen Tolino Fernández-
Henarejos. -- Leo con y para los demás / Ismael Fernández Fernández, Ana María Moreno
Vicente y Ana Beatriz Vicente Pérez. -- Nanas y arrullo. Poesía a la deriva / Bernardo
Fuentes Navarrete y Carlos García-Romeral Pérez. -- Gestión y evaluación de servicios
bibliotecarios para personas con dislexia: una biblioteca escolar inclusiva desde una
perspectiva internacional / Carmen Jorge García-Reyes. -- Sueños lectores compartidos
hechos realidad: la biblioteca escolar del C.E.I.P-S.E.S-A.A “LA PAZ” de Albacete / Ana
Rosa Cabañero Tobarra, Juan Manuel Herráez, Eva Leal Scasso, María Marín Sánchez, Ana
Belén Medrano Martínez y María José Nortes Ruipérez. -- El programa biblioteca escuela en
Civican. La literatura como elemento motivador para la alfabetización informacional /
Villar Arellano Yanguas. -- La competencia digital en el diseño curricular: desde la
biblioteca al aula / Felicidad Campal García. -- O deselvomimento da pesquisa escolar por
meio da competência em informaçao / Luciane de Fátima Cavalcante Beckman y Marta Leandro
da Mata. -- Proyecto escolar de investigación documental "Te pillé leyendo" / José Manuel
Garrido Argandoña. -- Aprender com a Biblioteca Escolar: formar para as literacias / Paula
Correia y Isabel Mendinhos. -- Sucedió en el siglo XX / María Antonia Becerra Montalbán,
Ángel Bernabé Muñoz y Sofía Vaz Romero. -- El Club de lectura en la nube / Belén Benito
Blázquez y Ana Ordás García. -- Promover a leitura e a escrita na era digital:
prácticas nas bibliotecas escolares / María Raquel Ramos. -- A biblioteca escolar e o
desafío da interculturalidade: o projeto Ser + cidadao / María da Conceição Tomé. --
Cuando la competencia digital encontró a la alfabetización informacional o Mucho ruido y
pocas nueces / Felicidad Campal García. -- Hora de ler, un programa para el fomento de la
lectura en contexto educativo / Cristina Novoa. -- Hábitos de lectura para las
competencias en información y alfabetización en información en bibliotecas escolares de
Puerto Rico / Karen Denise Centeno Casillas. -- Repositorios digitales en las bibliotecas
escolares andaluzas: situación, modelos y herramientas para su creación / Dolores Olmos
Olmos y Andrés Pulido Villar. -- Trabajando las competencias clave con las aventuras de
Mozarito en Extremadura / María Teresa Carballosa González y María Esther Nieto Vidal. --
Análisis de modelos de evaluación de la web de la biblioteca escolar / Raúl Cremades
García. -- Emociónate con las historias: El bosque de las emociones e historias con mucho
teatro / Esther Luis Pérez y Ana María Peromingo Fernández. -- Biblioteca escolar de
innovación y continuación / E. María Guerrero Palacios y Silvia Mora Ramírez. -- Uso de
estándares y licencias para la creación y difusión de contenidos en las bibliotecas
escolares / José Luis Barreiro Cebey. -- La biblioteca escolar digital móvil / Javier
Fernández Delgado. -- Uso de aplicaciones móviles para el desarrollo de
la competencia lingüística. Proyecto Hansel App Gretel / Dolores Olmos Olmos. -- A memória
e a mediação segundo Vigotski / Leda Maria Araújo, Patricia Celia Santana, Sueli Bortolin
y Leticia Gorri Molina. -- Bibliotecas escolares como tema de estudo dos alunos de
graduação em blioteconomia do Instituto de Ensino Superior da FUNLEC: estado da arte /
Tiago Pereira Nocera y Rodrigo Pereira. -- Ações de mediação da leitura e da informação
em bibliotecas escolares: um olhar sobre as bibliotecas dos Colégios de Aplicação /
Tatyanne Christina Gonçalves Ferreira Valdez y Alberto Calil Júnior. -- Mediação
pedagógica numa biblioteca de escola pública em Londrina / Rovilson José da Silva, Teba
Silva Yllana y Sueli Bortolin. -- Utilização de categorias por cores em sistema de
biblioteca voltado ao público infanto-juvenil / Liliana Giusti Serra. -- Atividades de
ensino dos atos de leitura com crianças em risco social / Adriana Naomi Fukushima da Silva
y Dagoberto Buim Arena. -- Biblioteca escolar: espaço de significados entre
alunos, professores e bibliotecários / Rodrigo Barbosa Paulo, Marisa Xavier, Helen Castro
Casarin y Creuza Barbaroto. -- A Biblioteca Escolar no Contexto da Legislação e
do Processo Educativo / Eliane Lourdes da Silva Moro, Francisca Rosaline Leite Mota y
Raimundo Martins de Lima. -- O jornal impresso como fonte de informação: a importância da
formação de leitores críticos / Mariana Pícaro Cerigatto. -- Bibliotecas escolares no
estado do Rio Grande do Sul: a trajetória de realização dos fóruns gaúchos pela melhoria
das bibliotecas escolares / Eliane Lourdes da Silva Moro y Lizandra Brasil Estabel. -- O
acesso à informação dos usuários surdos na biblioteca escolar / André Luís Onório
Coneglian y Mayara Melo Santana. -- Aprendizagem coletiva de bibliotecários e a
competência de pesquisa dos docentes: o caso do Instituto Federal do Espírito Santo /
Maristela Almeida Mercandeli Rodrigues y Beatriz Quiroz Villardi. -- Biblioteca escolar:
atores, parâmetros e competências / Mavi Galante Mancera Dall´Acqua Carvalho y Claudio
Marcondes de Castro Filho. -- Estratégias de aprendizagem de escrita no
Ensino Fundamental II / Érika Christina Kohle. -- Bebês e livros: leitura nas bebetecas.
Kenia Adriana de Aquino Modesto Silva, Juliane Francischeti Martins Motoyama y Renata
Junqueira de Souza. -- Práticas alternativas para organização de acervos nos espaços de
leitura em ambientes escolares / Luciana Souza Gracioso, Ariovaldo Alves,
Débora Nascimento, Suelen Redondo, Tainara Torika Kiri de Castro, Elizabete Angelon y
Eduardo Barbosa. -- Reflexões sobre a modelagem e criação de uma Rede Virtual de Leitores
para Bibliotecas Escolares / Carla Floriana Martins y Raoni Guerra Rajão. -- Biblioteca
escolar: espaço de formação leitora? / Silvana Ferreira de Souza Balsan y Renata
Junqueira de Souza. -- “Se a Biblioteca Escolar é minha mãe, o Google é meu pai”:
representações da relação entre Biblioteca Escolar e Google no imaginário de
alunos do ensino técnico / Adriana Bogliolo Sirihal-Duarte, Maria L. Amorim Antunes y
Raquel Miranda Vilela Paiva. -- Desafios e propostas para a universalização das
bibliotecas escolares no Brasil e na Espanha / Rodrigo Pereira, Daniela Spudeit y Fernanda
de Sales. -- Bibliotecário educador: possibilidades de atuação no contexto da biblioteca
escolar / André Carlos da Silva, Valéria Martin Valls y Mariana de Paula Silva. -- Uma ONG
para Bibliotecas Escolares : estratégia para ampliar a igualdade e capacidade de acesso
e uso da informação e educação escolar de qualidade / Suelen Camilo Ferreira y Luciana de
Souza Gracioso. -- O aluno com deficência: o papel do bibliotecário na disponibilidade de
recursos acessíveis na biblioteca escolar / Adriano de Sales Coelho, Rosilene de Melo
Oliveira y Marcos Pastana Santos. -- Biblioteca digital virtual e o uso do tablete: uma
possibilidade de construção de novas práticas de leitura na escola / Barbara Cibelli da
Silva Monteagudo y Dagoberto Buim Arena. -- A importância da biblioteca na educação de
crianças de 0 a 3 anos / Yngrid Karolline Mendonça Costa y Cyntia Graziella Guizelim
Simões Girotto. -- Comportamento Informacional de adolescentes: a relação com bibliotecas
e escolas / Nelson Sebastian Silva-Jerez y Helen de Castro S. Casarin
A Comprehensive Security Analysis of a SCADA Protocol: From OSINT to Mitigation
It is an established fact that the security of Industrial Automation and Control Systems (IACS)
strongly depends on the robustness of the underlying supervisory control and data acquisition (SCADA)
network protocols (among other factors). This becomes especially evident when considering the extent to
which certain protocols, designed with poor or nonexistent security mechanisms, have led to a considerable
number of past incident reports affecting critical infrastructures and essential services. Considering the
current situation, it is rather obvious why the proper auditing and analysis of SCADA protocols are
considered as key when it comes to design and/or protect IACS infrastructures. However, while the security
of some protocols, such as Modbus or DNP3, has already been extensively analyzed, the same cannot be said
for other protocols and technologies being used in the same domain that have not received the same amount
of attention. In this paper, we provide a comprehensive security analysis of the PCOM SCADA protocol,
including a dissection of PCOM, a demonstration of several attacks scenarios on PCOM-based systems,
and also an analysis of possible mitigation strategies against these potential attacks. Moreover, this paper
also describes a number of open-source tools that we developed for further analysis and research of PCOM
security aspects, including a PCOM Wireshark dissector, a Nmap NSE PCOM scan, multiple Metasploit
PCOM modules, a set of Snort PCOM rules, and several network traf c datasets containing multiple samples
of different types of PCOM operations
Intrusion and anomaly detection for the next-generation of industrial automation and control systems
The next-generation of Industrial Automation and Control Systems (IACS) and Supervisory Control and Data Acquisition (SCADA) systems pose numerous challenges in terms of cybersecurity monitoring. We have been witnessing the convergence of OT/IT networks, combined with massively distributed metering and control scenarios such as smart grids. Larger and geographically widespread attack surfaces, and inherently more data to analyse, will become the norm. Despite several advances in recent years, domain-specific security tools have been facing the challenges of trying to catch up with all the existing security flaws from the past, while also accounting for the specific needs of the next-generation of IACS. Moreover, the aggregation of multiple techniques and sources of information into a comprehensive approach has not been explored in depth. Such a holistic perspective is paramount since it enables a global and enhanced analysis enabled by the usage, combination and aggregation of the outputs from multiple sources and techniques. This paper starts by providing a review of the more recent anomaly detection techniques for SCADA systems, focused on both theoretical machine learning approaches and complete frameworks. Afterwards, it proposes a complete framework for an Intrusion and Anomaly Detection System (IADS) composed of specific detection probes, an event processing layer and a core anomaly detection component, amongst others. Finally, the paper presents an evaluation of the framework within a large-scale hybrid testbed, and a comparison of different anomaly detection scenarios based on various machine learning techniques.info:eu-repo/semantics/publishedVersio
O Claustro e o Século
O segundo ebook resultante das Residências Cistercienses realizadas no mosteiro de S. Bento de Cástris (Évora) e que agora se apresenta sob o título O Claustro e o Século. Espaços, Fronteiras e Identidades, pretende continuar o propósito traçado no primeiro: reinventar na contemporaneidade a densidade histórica do discurso cisterciense, integrando e debatendo realidades distintas no tempo e no espaço. Essa reinvenção vem permitindo uma aproximação de várias abordagens, significados e linguagens que, no presente trabalho, se desenrola em três partes distintas. Nelas se desenha o perfil das Residências Cistercienses em que ocorreram as intervenções, originando um espaço-tempo que permite novos e diferentes olhares, capazes de analisar, apreciar e contextualizar a realidade multisecular do mosteiro e referenciá-la com outras realidades. História, História da Arte, Música, Organologia, Arquitectura, Química, Engenharia, Informática e Humanidades Digitais dialogam entre si e criam, também neste e-book, mais uma edição com a garantia Openedition do CIDEHUS, um renovado e responsável olhar sobre o Património
Characterisation of microbial attack on archaeological bone
As part of an EU funded project to investigate the factors influencing bone preservation in the archaeological record, more than 250 bones from 41 archaeological sites in five countries spanning four climatic regions were studied for diagenetic alteration. Sites were selected to cover a range of environmental conditions and archaeological contexts. Microscopic and physical (mercury intrusion porosimetry) analyses of these bones revealed that the majority (68%) had suffered microbial attack. Furthermore, significant differences were found between animal and human bone in both the state of preservation and the type of microbial attack present. These differences in preservation might result from differences in early taphonomy of the bones. © 2003 Elsevier Science Ltd. All rights reserved
Brazilian Flora 2020: Leveraging the power of a collaborative scientific network
International audienceThe shortage of reliable primary taxonomic data limits the description of biological taxa and the understanding of biodiversity patterns and processes, complicating biogeographical, ecological, and evolutionary studies. This deficit creates a significant taxonomic impediment to biodiversity research and conservation planning. The taxonomic impediment and the biodiversity crisis are widely recognized, highlighting the urgent need for reliable taxonomic data. Over the past decade, numerous countries worldwide have devoted considerable effort to Target 1 of the Global Strategy for Plant Conservation (GSPC), which called for the preparation of a working list of all known plant species by 2010 and an online world Flora by 2020. Brazil is a megadiverse country, home to more of the world's known plant species than any other country. Despite that, Flora Brasiliensis, concluded in 1906, was the last comprehensive treatment of the Brazilian flora. The lack of accurate estimates of the number of species of algae, fungi, and plants occurring in Brazil contributes to the prevailing taxonomic impediment and delays progress towards the GSPC targets. Over the past 12 years, a legion of taxonomists motivated to meet Target 1 of the GSPC, worked together to gather and integrate knowledge on the algal, plant, and fungal diversity of Brazil. Overall, a team of about 980 taxonomists joined efforts in a highly collaborative project that used cybertaxonomy to prepare an updated Flora of Brazil, showing the power of scientific collaboration to reach ambitious goals. This paper presents an overview of the Brazilian Flora 2020 and provides taxonomic and spatial updates on the algae, fungi, and plants found in one of the world's most biodiverse countries. We further identify collection gaps and summarize future goals that extend beyond 2020. Our results show that Brazil is home to 46,975 native species of algae, fungi, and plants, of which 19,669 are endemic to the country. The data compiled to date suggests that the Atlantic Rainforest might be the most diverse Brazilian domain for all plant groups except gymnosperms, which are most diverse in the Amazon. However, scientific knowledge of Brazilian diversity is still unequally distributed, with the Atlantic Rainforest and the Cerrado being the most intensively sampled and studied biomes in the country. In times of “scientific reductionism”, with botanical and mycological sciences suffering pervasive depreciation in recent decades, the first online Flora of Brazil 2020 significantly enhanced the quality and quantity of taxonomic data available for algae, fungi, and plants from Brazil. This project also made all the information freely available online, providing a firm foundation for future research and for the management, conservation, and sustainable use of the Brazilian funga and flora