Prática docente e construção de conceitos em Geografia – contribuições para o ensino de Geografia nas séries iniciais

Com o objetivo de identificar as concepções que os professores das séries iniciais tem acerca de determinadas noções tratadas em Geografia, especificamente no que concerne as noções espaciais. Pretendemos discutir a importância da aprendizagem e da metodologia de ensino em Geografia, assim trataremos nesta pesquisa da aprendizagem e da formação de professores, utilizando o método de analise de Michel de Certeau, Memória e Ocasião para a analise de suas práticas cotidianas

A cidade como projeto de ensino: homogeneização e fragmentação socioespacial nas aulas de Geografia

O presente artigo objetiva discutir a cidade enquanto projeto de ensino. Para tanto, apresentam-se reflexões sobre os conceitos de homogeneização e fragmentação socioespacial visando compreender a complexidade desses conceitos nas aulas de geografia. Referida concepção baseia-se nas proposições de (Lefebvre: 2008) relativas ao espaço e à cidade. Para o autor o espaço na era urbana deve ser compreendido como a reprodução das relações sociais de produção, portanto, essas relações ao mesmo tempo em que centraliza e homogeneíza os lugares da cidade, também os diferencia, os segrega e fragmenta

EU Foreign Fighters in the 2022 Russo-Ukrainian War: A Glance into the Legal Protection Offered by International Humanitarian and Human Rights Law

In the latest Saar Blueprint, Elza Seferian examines the legal status of EU foreigners who have been involved as combatants in the Russian war of aggression against Ukraine since 2022. Initially, the author takes a definitional approach to the concept of the EU foreign fighter. Subsequently, she explores the legal protection of EU foreign fighters in the context of the Ukraine conflict, first from the perspective of international humanitarian law and then from the perspective of international human rights law

Shifting Sands, Unmoved Mountains? Relations between Armenia and Iran since the Second Karabakh War

This paper discusses the relations between the Republic of Armenia and the Islamic Republic of Iran across three inter-related dimensions: first, the presence of the prominent Armenian community in Iran; second, economic ties between the two countries; and third, the role of Tehran within regional political dynamics. It is the lattermost point which has seen substantial shifts since the end of the Second Karabakh War in 2020, especially with the shared perceived threats arising from the prospect of a 'Zangezour/Zangezur Corridor' connecting mainland Azerbaijan with its exclave of Nakhchivan/Nakhichevan. In this context, the foreign policy orientations in Yerevan mainly directed towards Moscow have been shattered as a result of the war and its aftermath. Relations with Tehran, by contrast, have remained steady, developing as one of many in a complex of factors both in Armenia's re-pivoting and the ongoing changes to geopolitical power structures in the South Caucasus

An identity based security framework for advanced metering infrastructure -

Thesis. M.E. American University of Beirut. Department of Electrical and Computer Engineering, 2016. ET:6428Advisor : Dr. Rouwaida Kanj, Assistant Professor, Electrical and Computer Engineering ; Members of Committee : Dr. Ali Chehab, Professor, Electrical and Computer Engineering ; Dr. Ayman Kayssi, Professor, Electrical and Computer Engineering.Includes bibliographical references (leaves 71-73)The smart grid represents the next generation power grid and will have a substantial role in increasing the reliability and sustainability of energy production and distribution of power delivery networks. Particularly, the integration of information and communication technology is considered to be an evolution in the context of existing power grids. The establishment of two-way communication channels between different components of the smart grid and the utility offers several benefits ranging from early detection of blackouts to time-based rates of energy and demand management programs. Compromising the communication and networking data systems of the smart grid will lead to the risk of compromising reliable and secure power system operations which is the ultimate objective of the smart grid. Therefore, cyber security of the smart grid is of high importance and is considered as one of the highest priorities of the smart grid design. This thesis will focus on the security of the advanced metering infrastructure (AMI) network, which is the last mile of the smart grid, connecting smart meters to the utility. Specifically, the thesis covers topics related to efficient and scalable key management by relying on identity based cryptographic primitives. The first part of the thesis proposes an identity based non-interactive and scalable key distribution system for generating pairwise symmetric keys to be used for link-layer security. In addition, to prevent the discovery and access of the cryptographic keys stored on accessible memory locations physical unclonable functions are adopted. In the second part of the thesis, we present a new lightweight key update and delivery method to securely update the private keys utilized by the identity based cryptosystem. Finally, we propose a new method for deriving keys for the purpose of ensuring a forward secure communication between the meters and the utility at the application level. The proposed method is based on merging identity based cryptography and Diffie-Hellman key ex

Drivers and uncertainties of future global marine primary production in marine ecosystem models

Past model studies have projected a global decrease in marine net primary production (NPP) over the 21st century, but these studies focused on the multi-model mean rather than on the large inter-model differences. Here, we analyze model-simulated changes in NPP for the 21st century under IPCC's high-emission scenario RCP8.5. We use a suite of nine coupled carbon–climate Earth system models with embedded marine ecosystem models and focus on the spread between the different models and the underlying reasons. Globally, NPP decreases in five out of the nine models over the course of the 21st century, while three show no significant trend and one even simulates an increase. The largest model spread occurs in the low latitudes (between 30° S and 30° N), with individual models simulating relative changes between −25 and +40 %. Of the seven models diagnosing a net decrease in NPP in the low latitudes, only three simulate this to be a consequence of the classical interpretation, i.e., a stronger nutrient limitation due to increased stratification leading to reduced phytoplankton growth. In the other four, warming-induced increases in phytoplankton growth outbalance the stronger nutrient limitation. However, temperature-driven increases in grazing and other loss processes cause a net decrease in phytoplankton biomass and reduce NPP despite higher growth rates. One model projects a strong increase in NPP in the low latitudes, caused by an intensification of the microbial loop, while NPP in the remaining model changes by less than 0.5 %. While models consistently project increases NPP in the Southern Ocean, the regional inter-model range is also very substantial. In most models, this increase in NPP is driven by temperature, but it is also modulated by changes in light, macronutrients and iron as well as grazing. Overall, current projections of future changes in global marine NPP are subject to large uncertainties and necessitate a dedicated and sustained effort to improve the models and the concepts and data that guide their developmen

“Química y su enseñanza”: texto para docentes y alumnos del profesorado a partir de la complejización de temas cotidianos

El presente trabajo da a conocer un texto para estudiantes del profesorado y profesores de Química que se gestó a partir de los pedidos y necesidades de docentes de la Prov. de Bs. As., en el dictado de cursos de capacitación. El texto, presenta entre otras temáticas, fotografía e inoculantes, a partir un encuadre didáctico contextualizado de la Enseñanza de la Química desde la visión CTS (Ciencia, Tecnología y Sociedad) y del Aprendizaje Basado en Problemas (ABP).Facultad de Humanidades y Ciencias de la Educació