Donald Trump, o twitter e as eleições presidenciais dos Estados Unidos de 2016

In the XXI century, the media has been developed beyond the traditional means of communication – television and radio –, changing the way the public opinion is politically understood and mobilized. This reality brought unprecedented challenges to the contemporary democracies. In this context, this article aims to map how Donald Trump has used social media to communicate directly with his voters. The question that guides the research is: Donald Trump’s Twitter was an instrument on the creation of the media agenda during the presidential elections of the United States of 2016? The main hypothesis is that Trump’s Twitter assisted in the agenda building, including the traditional media, during the electoral run. To do so, we aim to map Trump’s Twitter and its relationship with the American television networks. We understand that this element is crucial to the comprehension of Trump’s victory in the electoral run of 2016En el siglo XXI, la intermediación política se ha desarrollado más allá de los medios tradicionales de comunicación, cambiando la forma en que la opinión pública se entiende y se moviliza políticamente. Esta realidad trajo desafíos sin precedentes para las democracias contemporáneas. En este contexto, este artículo busca mapear cómo Donald Trump usó las redes sociales para comunicarse directamente con sus votantes. La pregunta que guía la investigación es la siguiente: ¿fue el Twitter de Donald Trump una herramienta para crear la agenda de prensa principal durante las elecciones presidenciales de 2016 en los Estados Unidos? Partimos de la hipótesis de que el Twitter de Trump ayudó a construir agendas, incluidos los medios tradicionales, durante la carrera electoral. Con este fin, buscamos mapear el Twitter de Trump y su relación con las redes de televisión estadounidenses. Entendemos que este elemento es crucial para comprender la victoria de Donald Trump en la carrera presidencial de 2016No século XXI, a intermediação política tem se desenvolvido para além dos meios tradicionais de comunicação, alterando o modo como se entende e mobiliza politicamente a opinião pública. Essa realidade trouxe desafios inéditos para as democracias contemporâneas. Nesse contexto, este artigo busca mapear como Donald Trump usou as redes sociais para comunicar-se diretamente com seus eleitores. A pergunta que orienta a pesquisa é a seguinte: o Twitter de Donald Trump foi um instrumento de criação da agenda da grande imprensa durante as eleições presidenciais dos Estados Unidos de 2016? Partimos da hipótese de que o Twitter de Trump auxiliou na construção das agendas, inclusive das mídias tradicionais, durante a corrida eleitoral. Para tanto, buscamos mapear o Twitter de Trump e sua relação com as redes televisivas estadunidenses. Entendemos que esse elemento é crucial para a compreensão da vitória do Donald Trump na corrida presidencial de 2016

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

Donald Trump, o twitter e as eleições presidenciais dos Estados Unidos de 2016

In the XXI century, the media has been developed beyond the traditional means of communication – television and radio –, changing the way the public opinion is politically understood and mobilized. This reality brought unprecedented challenges to the contemporary democracies. In this context, this article aims to map how Donald Trump has used social media to communicate directly with his voters. The question that guides the research is: Donald Trump’s Twitter was an instrument on the creation of the media agenda during the presidential elections of the United States of 2016? The main hypothesis is that Trump’s Twitter assisted in the agenda building, including the traditional media, during the electoral run. To do so, we aim to map Trump’s Twitter and its relationship with the American television networks. We understand that this element is crucial to the comprehension of Trump’s victory in the electoral run of 2016En el siglo XXI, la intermediación política se ha desarrollado más allá de los medios tradicionales de comunicación, cambiando la forma en que la opinión pública se entiende y se moviliza políticamente. Esta realidad trajo desafíos sin precedentes para las democracias contemporáneas. En este contexto, este artículo busca mapear cómo Donald Trump usó las redes sociales para comunicarse directamente con sus votantes. La pregunta que guía la investigación es la siguiente: ¿fue el Twitter de Donald Trump una herramienta para crear la agenda de prensa principal durante las elecciones presidenciales de 2016 en los Estados Unidos? Partimos de la hipótesis de que el Twitter de Trump ayudó a construir agendas, incluidos los medios tradicionales, durante la carrera electoral. Con este fin, buscamos mapear el Twitter de Trump y su relación con las redes de televisión estadounidenses. Entendemos que este elemento es crucial para comprender la victoria de Donald Trump en la carrera presidencial de 2016No século XXI, a intermediação política tem se desenvolvido para além dos meios tradicionais de comunicação, alterando o modo como se entende e mobiliza politicamente a opinião pública. Essa realidade trouxe desafios inéditos para as democracias contemporâneas. Nesse contexto, este artigo busca mapear como Donald Trump usou as redes sociais para comunicar-se diretamente com seus eleitores. A pergunta que orienta a pesquisa é a seguinte: o Twitter de Donald Trump foi um instrumento de criação da agenda da grande imprensa durante as eleições presidenciais dos Estados Unidos de 2016? Partimos da hipótese de que o Twitter de Trump auxiliou na construção das agendas, inclusive das mídias tradicionais, durante a corrida eleitoral. Para tanto, buscamos mapear o Twitter de Trump e sua relação com as redes televisivas estadunidenses. Entendemos que esse elemento é crucial para a compreensão da vitória do Donald Trump na corrida presidencial de 2016

Instituições e política comercial nos Estados Unidos: política internacional, demandas domésticas e design institucional

Resumo O artigo aborda a institucionalização da política comercial dos Estados Unidos a partir de uma perspectiva histórica, dando ênfase especial aos desenvolvimentos que ocorreram a partir de meados da década de 40 até os anos 80. Para realizarmos esta tarefa, construímos uma narrativa que leva em conta os desenvolvimentos do sistema internacional e da política doméstica norte-americana. Buscamos entender como essas duas estruturas levaram a mudanças no processo de formulação de política comercial, bem como a influência dessas mudanças na política comercial em si, que se tornou menos internacionalista e mais focada na noção de fair trade

The Omicron Lineages BA.1 and BA.2 (<i>Betacoronavirus</i> SARS-CoV-2) Have Repeatedly Entered Brazil through a Single Dispersal Hub

Brazil currently ranks second in absolute deaths by COVID-19, even though most of its population has completed the vaccination protocol. With the introduction of Omicron in late 2021, the number of COVID-19 cases soared once again in the country. We investigated in this work how lineages BA.1 and BA.2 entered and spread in the country by sequencing 2173 new SARS-CoV-2 genomes collected between October 2021 and April 2022 and analyzing them in addition to more than 18,000 publicly available sequences with phylodynamic methods. We registered that Omicron was present in Brazil as early as 16 November 2021 and by January 2022 was already more than 99% of samples. More importantly, we detected that Omicron has been mostly imported through the state of São Paulo, which in turn dispersed the lineages to other states and regions of Brazil. This knowledge can be used to implement more efficient non-pharmaceutical interventions against the introduction of new SARS-CoV variants focused on surveillance of airports and ground transportation

Núcleos de Ensino da Unesp: artigos 2008

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq