Search results for "FAC"
showing 10 items of 36366 documents
Dwuizbowy parlament i reformy instytucjonalne w Republice Włoskiej
2019
Parliaments are dual institutions by nature, as they connect society with the legal structure of the state power. An analysis of the structural properties of contemporary legislative bodies indicates the particular importance of the factor of internal organization, which makes it possible to distinguish a symmetrical bicameralism. The case of Italy is attractive for researchers of political systems for many reasons. One of them is a fact, that both chambers hold the identical legal and political positions, have the same five years’ terms of office and identical scopes of authority. The proportional voting system guaranteed (with two exceptions) that the legislative branch was a mirror image…
Znaczenie unijnego systemu wjazdu/wyjazdu dla wzmocnienia bezpieczeństwa i skutecznego zarządzania granicami zewnętrznymi
2019
The importance of the EU Entry/Exit System to strengthen the security and effective management of the EU’s external borders The European Union strives for modern and effective border management through the use of the new technologies. This study concerns the adopted on 30 November 2017 EU Entry/Exit System. This system, which is expected to become fully operational by 2020, should contribute to the acceleration of border controls at the external borders of the Schengen area and increase the freedom of movement while enhancing the Union’s internal security. In addition, it is currently replacing the existing system of manual stamping of passports and will register electronic data on entries/…
Characterization of the porous structure of Chilean volcanic soils by nitrogen adsorption and mercury porosimetry
2004
Pore volume, specific surface area (SSA), and total intragranular porosity (TIP) of Chilean soils derived from volcanic materials were studied. Soil samples involving the 0-15 and 15-30 cm depth of virgin and cultivated Collipulli (Ultisol) and Diguillin (Andisol) soils at two particle size fractions (<1 mm and <2 µm) were considered. From mercury porosimetry and N2 adsorption, mainly mesopores (pore diameter, dpore, about 10 nm) were determined for <1 mm Collipulli samples. Diguillin <1 mm soil shows macroporosity with dpore from 70 nm to 7000 nm. The clay fraction of Collipulli has macropores (dpore from 2000 nm to 40000 nm) and mesopores (dpore from 3 nm to 23 nm), while for Diguillin cl…
Modelling load-transmission mechanisms in axially loaded RC columns retrofitted with steel jackets
2018
The use of steel jacketing technique is a common practice for retrofitting existing reinforced concrete (RC) columns, as it allows increasing load-carrying capacity and ductility of the member. When the external jacket has no-end connections – i.e. the jacket is indirectly loaded- the load sustained by the column is transferred from the inner RC core to the external jacket through shear stresses along the contact surface. The assessment of this mechanism is quite complex, due to the marked non-linear behaviour of constituent materials and to the calibration of a proper shear stress-relative slip constitutive law of the concrete-to-steel interface. In this paper, a step-by-step analytical ap…
A risk assessment proposal for underground cavities in Hard Soils-Soft Rocks
2018
Abstract Underground calcarenite quarries in Marsala (Sicily) have been involved in a number of collapses that have, seriously damaged numerous buildings. The stability conditions were therefore examined in order to assess risk conditions within the historical centre of the town and the surrounding areas, which are subject to urban expansion. Starting with an extensive collection of historical information, the research was carried out through surveys of the cavities, systematic sampling of material, petrographic analysis and geotechnical testing. The results of laboratory tests and in situ investigations provided a geotechnical characterization of both the intact material and the rock mass.…
HyperWall: A Hypervisor for Detection and Prevention of Malicious Communication
2020
Malicious programs vary widely in their functionality, from key-logging to disk encryption. However, most malicious programs communicate with their operators, thus revealing themselves to various security tools. The security tools incorporated within an operating system are vulnerable to attacks due to the large attack surface of the operating system kernel and modules. We present a kernel module that demonstrates how kernel-mode access can be used to bypass any security mechanism that is implemented in kernel-mode. External security tools, like firewalls, lack important information about the origin of the intercepted packets, thus their filtering policy is usually insufficient to prevent c…
On Detection of Network-Based Co-residence Verification Attacks in SDN-Driven Clouds
2017
Modern cloud environments allow users to consume computational and storage resources in the form of virtual machines. Even though machines running on the same cloud server are logically isolated from each other, a malicious customer can create various side channels to obtain sensitive information from co-located machines. In this study, we concentrate on timely detection of intentional co-residence attempts in cloud environments that utilize software-defined networking. SDN enables global visibility of the network state which allows the cloud provider to monitor and extract necessary information from each flow in every virtual network in online mode. We analyze the extracted statistics on d…
Local expert experiences and perceptions of environmentally induced migration from Bangladesh to India
2017
This study investigates local expert perceptions of the role of environmental factors, especially in terms of contemporary climate change, in population movements from Bangladesh to India. The aim is to delve into locally held understandings of the phenomenon and to gain a better understanding of these migration processes, which are actively intertwined with local experiences. Both Indian and Bangladeshi experts were interviewed using semi-structured, in-depth interviews in order to explore insights from locally held perceptions and understandings of contextual factors. In total, 10 Bangladeshi and 15 Indian experts were interviewed, covering different disciplines, sectors, regions and job …
Hacia una comprensión neurocientífica del trastorno por estrés postraumático en las víctimas del atentado terrorista del 11 de septiembre de 2001
2018
Resumen Introduccion De todas las personas expuestas a un evento traumatico, solo un pequeno porcentaje de ellas desarrollaran un trastorno por estres postraumatico (TEPT). Las neurociencias han sugerido la existencia de cierta predisposicion genetica que elevaria la vulnerabilidad para desarrollar el trastorno, asi como la desregulacion de multiples sistemas neuroquimicos como correlatos del trastorno. Asimismo, se ha hipotetizado sobre la posible transmision intergeneracional del mencionado trastorno. Material y metodo Revisar y sintetizar los resultados obtenidos sobre los factores psicobiologicos que aumentan la vulnerabilidad para desarrollar el TEPT tras el atentado terrorista de las …
Inducción de manía por inhibidores de la colinesterasa: evidencia empírica a través de datos observacionales
2019
Resumen Objetivos Evaluar si los inhibidores de la colinesterasa pueden inducir mania, y determinar si este efecto puede estar relacionado con estados u otras caracteristicas previas de los pacientes. Metodo Se realizo una revision sistematica, incluyendo articulos publicados en ISI Web of Knowledge y PubMed, desde enero de 1990 a marzo de 2018, siguiendo criterios PRISMA. Resultados De 326 estudios identificados, se incluyeron en la revision 16. En los casos comunicados hay una correlacion entre la introduccion de un inhibidor de la colinesterasa y la aparicion de un episodio maniaco/hipomaniaco. El riesgo parece ser mayor si el paciente tiene antecedentes de trastorno afectivo y si esta t…