Estimating the potential biomasses energy source of forest and agricultural residues in the cinque terre italian national park

This paper aims to evaluate the feasibility of biomasses exploitation as an alternative Energy source, in areas characterized by high environmental, cultural and landscaping value. In particular, a. methodology for assessing the energy potential from biomass was applied in protected areas, using Geographic Information System (GIS) software and data from European Program Conine Land Cover, jointly with other local data useful for analyzing the topography and the biomass availability of the chosen territory, as well as for an assessment of the necessary logistics for biomasses transportation. This methodology was applied to the Cinque Terre national park, obtaining as a result an estimation of the potential biomasses energy source coming from forest and agricultural residues

A Practical Attack on the MIFARE Classic

The MIFARE Classic is the most widely used contactless smart card in the market. Its design and implementation details are kept secret by its manufacturer. This paper studies the architecture of the card and the communication protocol between card and reader. Then it gives a practical, low-cost, attack that recovers secret information from the memory of the card. Due to a weakness in the pseudo-random generator, we are able to recover the keystream generated by the CRYPTO1 stream cipher. We exploit the malleability of the stream cipher to read all memory blocks of the first sector of the card. Moreover, we are able to read any sector of the memory of the card, provided that we know one memory block within this sector. Finally, and perhaps more damaging, the same holds for modifying memory blocks

As estratégias de construção narrativa do Realismo Maravilhoso a serviço da fabricação das identidades moçambicanas: apropriações e trânsitos culturais

A literatura realista maravilhosa não se pode restringir à América Hispânica, senão que se tratar de um processo de construção narrativa. Verificando proximidades entre as histórias da América Espanhola, é fácil sugerir que autores africanos apropriem-se de estratégias narrativas realista-maravilhosas. Essa opção pode ser vista como vertente de literatura contra-hegemônica, contra-metropolitana, mesmo veiculada na língua do colonizador, pois língua de unidade nacional e expressão internacional. Corresponderia à expressão dos mirabilia autóctones, da América Hispânica ou da África Lusófona, amalgamando os sistemas literários real-naturalista e maravilhoso. É o que faz Mia Couto, especialmente, em sua narrativas de curta ou média extensão, a servição da fabricação das identidades moçambicanas

Anatomia dos órgãos vegetativos de Mikania cordifolia (Asteraceae) com ocorrência na restinga de Florianópolis.

TCC(graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Biológicas. Biologia.RESUMO Dentro da família Asteraceae o gênero Mikania é conhecido por apresentar uma morfologia similar entre as espécies. Sua anatomia fornece informações, as quais são importantes para identificação de espécies e para definir possíveis potenciais de fármacos. O ambiente de restinga proporciona uma série de adversidades para os seres que habitam esse ecossistema, especialmente a comunidade vegetal. Dentre esses habitantes está a espécie Mikania cordifolia, uma das espécies conhecidas como ‘guaco’ e com possível potencial medicinal e para bioprospecção. Com o intuito de entender sua anatomia e de que forma ela está adaptada para a sobrevivência dos indivíduos nesse ambiente hostil, este estudo teve como objetivo descrever os órgãos vegetativos dessas espécies comparando com as descrições já existentes na literatura em indivíduos dessa espécie, ou espécies de outros ambientes. Para tanto foram coletadas amostras da espécie na restinga, no município de Florianópolis, Estado de Santa Catarina, Brasil, sendo os indivíduos coletados em três diferentes áreas de restinga. Foram encontrados canais secretores em estruturas foliares e no caule com descrições condizentes com a que consta na literatura, ainda foram encontrados dois tipos de tricomas glandulares. Além disso a anatomia da espécie se mostrou diferente em alguns aspectos já documentados em literatura para outros ambientes. Aspectos como uma plasticidade grande no pecíolo e os xilopódios não observados para este ambiente. Além disso este trabalho traz uma descrição do caule do tipo estolão, cuja descrição para espécie não fora observada em outros trabalhos. ABSTRACT Within the Asteraceae family, the genus Mikania is known to have a similar morphology. Its anatomy provides information, which is important for species identification and for defining potential drugs. The sandbank environment provides a series of adversities for the beings that inhabit this ecosystem, especially the plant community. Among these inhabitants is the species Mikania cordifolia, one of the species known as ‘guaco’ and with possible medicinal and bioprospecting potential. In order to understand its anatomy and how it is adapted for the survival of individuals in this hostile environment, this study aimed to describe the vegetative organs of these species in comparison with the descriptions already existing in the literature in individuals of this species or species of others environments. For this purpose, samples of the species were collected in the restinga, in the municipality of Florianópolis, State of Santa Catarina, Brazil, and individuals were collected in three different restinga areas. Secretory channels were found in leaf structures and in the stem with descriptions consistent with those in the literature, two types of glandular trichomes were also found. In addition, the species' anatomy was different in some aspects already documented in the literature for other environments. Aspects such as a large plasticity in the petiole and the xylopodia not observed for this environment. In addition, this work presents a description of the stolon type stem, whose description for the species has not been observed in other works

Why banker Bob (still) can’t get TLS right: A Security Analysis of TLS in Leading UK Banking Apps

This paper presents a security review of the mobile apps provided by the UK’s leading banks; we focus on the connections the apps make, and the way in which TLS is used. We apply existing TLS testing methods to the apps which only find errors in legacy apps. We then go on to look at extensions of these methods and find five of the apps have serious vulnerabilities. In particular, we find that two apps pin a TLS root CA certificate, but do not verify the hostname. In this case, the use of certificate pinning means that all existing test methods would miss detecting the hostname verification flaw. We find that three apps load adverts over insecure connections, which could be exploited for in-app phishing attacks. Some of the apps used the users’ PIN as authentication, for which PCI guidelines require extra security, so these apps use an additional cryptographic protocol; we study the underlying protocol of one banking app in detail and show that it provides little additional protection, meaning that an active man-in-the-middle attacker can retrieve the user’s credentials, login to the bank and perform every operation the legitimate user could

Thickness dependent magnetic anisotropy of ultrathin LCMO epitaxial thin films

The magnetic properties of La0.7Ca0.3MnO3 (LCMO) manganite thin films were studied with magnetometry and ferromagnetic resonance as a function of film thickness. They maintain the colossal magnetoresistance behavior with a pronounced metal-insulator transition around 150-200 K, except for the very thinnest films studied (3 nm). Nevertheless, LCMO films as thin as 3 nm remain ferromagnetic, without a decrease in saturation magnetization, indicating an absence of dead-layers, although below approx. 6 nm the films remain insulating at low temperature. Magnetization hysteresis loops reveal that the magnetic easy axes lie in the plane of the film for thicknesses in the range of 4-15 nm. Ferromagnetic resonance studies confirm that the easy axes are in-plane, and find a biaxial symmetry in-plane with two, perpendicular easy axes. The directions of the easy axes with respect to the crystallographic directions of the cubic SrTiO3 substrate differ by 45 degrees in 4 nm and 15 nm thick LCMO films.Comment: Presented at Intermag conference (Madrid, 2008). Accepted for publication in IEEE Transactions on Magnetic