Miracle-dz/UniFAR-FTUs huggingface dataset:
Cloud Data Analytics for Security: Applications, Challenges, and Opportunities

In this keynote, I describe the emerging need of cloud data analytics for security and call for the security community to devote to closing the gap between research innovation and practical deployment. Cloud data analytics refer to cloud platforms that provide pattern recognition and data discovery services to clients. This talk will discuss how cloud data analytics can be designed to achieve system security, that is, securing clients' systems against advanced exploits and attacks by providing transparent and seamless automatic data gathering, system behavior monitoring, and feedback. Such a cloud framework has the potential to provide practical security services and has multiple advantages, e.g., update-to-date security protection, scalability, individualized anomaly detection, and ease of deployment. It would allow clients to outsource complex system security monitoring and computation tasks to the cloud/security service providers, without having to tend to tedious low-level details (e.g., model training and tuning, update). This new direction of security analytics in the cloud presents a wide range of exciting research and business opportunities, as well as unique technical and privacy challenges. I survey the existing data-driven system and network monitoring techniques and discuss what it will take to outsource them to the cloud. The talk will draw from my research experiences on a number of data-driven security projects, including program anomaly detection, data-leak detection as a service, and network traffic causal analysis.
Forcing Johnny to login safely

We present the results of the first long-term user study of site-based login mechanisms which force and train users to login safely. We found that interactive site-identifying images received 70% detection rates, which is significantly better than the results received by the typical login ceremony and with passive defense indicators [in: CHI'06: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, ACM, New York, 2006, pp. 601--610; Computers & Security 281,2 2009, 63--71; in: SP'07: Proceedings of the 2007 IEEE Symposium on Security and Privacy, IEEE Computer Society, Washington, 2007, pp. 51--65]. We also found that combining login bookmarks with interactive images and 'non-working' buttons/links achieved the best detection rates 82% and overall resistance rates 93%. We also present WAPP Web Application Phishing-Protection, an effective server-side solution which combines the login bookmark and the interactive custom image indicators. WAPP provides two-factor and two-sided authentication.
Dual-band circularly polarized microstrip patch antenna for RFID applications

A dual-band circularly polarized microstrip patch antenna is investigated. To satisfy the RFID application in China (840.5MHz-844.5MHz, 920.5MHz-924.5MHz), a parasitic patch is used to attain dual bands and slots in the ground are used to adjust frequency ratio. The simulation results show that the proposed antenna exhibits two frequency bands for return loss>15dB covering two RFID bands in China with good circularly polarization performance.
Pliometria Aplicada à Reabilitação de Atletas

A pliometria e uma tecnica conhecida para aumentar a potencia muscular e melhorar o rendimento atletico, porem, so recentemente, sua importância na prevencao e na reabilitacao de lesoes esta sendo discutida. Os exercicios pliometricos sao definidos como aqueles que ativam o ciclo excentricoconcentrico do musculo esqueletico, provocando sua potenciacao mecânica, elastica e reflexa. Esse ciclo refere-se as atividades concentricas precedidas por uma acao excentrica, cujo proposito e aumentar a forca explosiva do musculo pelo armazenamento de energia elastica na fase de pre-alongamento e sua reutilizacao durante a contracao concentrica, alem da ativacao do reflexo miotatico. O objetivo deste trabalho de revisao bibliografica e descrever as bases mecânicas, elasticas e neurofisiologicas da pliometria, assim como, a sua importância na reabilitacao de atletas, haja vista que eles precisam retornar de forma precoce e segura ao esporte competitivo. Para isso, foram utilizados livros e artigos cientificos nacionais e internacionais. Pode-se observar, que esses exercicios sao usados na fase final da reabilitacao de varios tipos de lesoes musculoesqueleticas, tanto dos membros inferiores, quanto dos superiores e tambem na prevencao de alguns tipos de lesoes, pois, acredita-se que eles sao capazes de desenvolver forca explosiva, aumentar a resposta muscular e melhorar a coordenacao neuromuscular. Conclui-se, que e fundamental para o fisioterapeuta do esporte conhecer o conceito e a aplicacao clinica da pliometria na prevencao e no tratamento das lesoes esportivas para poder elaborar um programa de tratamento seguro e eficiente.
Crustal structure and deformation across a mature slab tear zone: the case of southern Tyrrhenian subduction (Italy)

We compute S velocity profiles of the crust across the Messina Strait (Italy), the tear zone at the southern end of the Ionian subduction zone. Separating Sicily from Calabria, the Messina Strait hosted some of the strongest earthquakes to ever occur in Italy. Here the motion of the Ionian slab with respect to Sicily creates a complex tectonic setting characterized by lithospheric tearing. We show velocity models of the crust, computed from teleseismic receiver function inversion, outlining the differences between Sicily and Calabria. Strong deformation across the Messina Strait between 10–15 and 30 km depth is expressed by strong anisotropy (up to 10%), developed in a ductile shear zone of the crust. The top of these ductile weaker layers could limit the depth extent of future ruptures.
Cooperation between human fibrocytes and endothelial colony-forming cells increases angiogenesis via the CXCR4 pathway

Summary Fibrotic diseases of the lung are associated with a vascular remodelling process. Fibrocytes (Fy) are a distinct population of blood-borne cells that co-express haematopoietic cell antigens and fibroblast markers, and have been shown to contribute to organ fibrosis. The purpose of this study was to determine whether fibrocytes cooperate with endothelial colony-forming cells (ECFC) to induce angiogenesis. We isolated fibrocytes from blood of patient with idiopathic pulmonary fibrosis (IPF) and characterised them by flow cytometry, quantitative reverse transcriptase PCR (RTQ-PCR), and confocal microscopy. We then investigated the angiogenic interaction between fibrocytes and cordblood- derived ECFC, both in vitro and in an in vivo Matrigel implant model. Compared to fibroblast culture medium, fibrocyte culture medium increased ECFC proliferation and differentiation via the SDF- 1/CXCR4 pathway. IPF-Fy co-implanted with human ECFC in Matrigel plugs in immunodeficient mice formed functional microvascular beds, whereas fibroblasts did not. Evaluation of implants after two weeks revealed an extensive network of erythrocyte-containing blood vessels. CXCR4 blockade significantly inhibited this blood vessel formation. The clinical relevance of these data was confirmed by strong CXCR4 expression in vessels close to fibrotic areas in biopsy specimens from patients with IPF, by comparison with control lungs. In conclusion, circulating fibrocytes might contribute to the intense remodelling of the pulmonary vasculature in patients with idiopathic pulmonary fibrosis.
Cyclic Adenosine Monophosphate in the Nervous System of Aplysia californica

Serotonin and dopamine, both likely transmitter substances in Aplysia, stimulated formation of adenosine-3',5' monophosphate (cAMP) in ganglia, connectives, and identified nerve cell bodies. This widespread distribution suggests that receptors for the response are localized throughout the nervous system, as is adenyl cyclase. Both synthesis of cAMP-3H from precursor previously labeled in incubations with adenine-3H and total content of cAMP were stimulated up to 15-fold. The acetylcholine analogue carbachol, glutamate, norepinephrine, and histamine were inactive. Full stimulation occurred within 2–4 min of applying serotonin; the extent of the effect was half maximal at 6µ serotonin. Even in the continued presence of serotonin, the increased cAMP diminished with time. When serotonin was removed, tissue remained refractory for 15–20 min; sensitivity returned after 25 min. Serotonin stimulated cAMP after removal of extracellular Na, K, or Cl and in isotonic sucrose, with all extracellular ions removed. Elevating Mg, which blocked the stimulation of cAMP caused by synaptic activity, did not affect the response to serotonin. Thus the response appeared to be independent of transmitter release and of changes in synaptic potentials and current flow. The role of cAMP in neuronal functioning remains to be determined. Conditions which markedly increased cAMP in neurons, however, did not affect the rate of RNA synthesis, nor did they alter the distribution of phosphorylated adenine or uridine nucleotides.
Plasma total homocysteine concentration and the risk of acute coronary events: the Kuopio Ischaemic Heart Disease Risk Factor Studytpdel

Abstract. Voutilainen S, Lakka TA, Hämelahti P, Lehtimäki T, Poulsen HE, Salonen JT (University of Kuopio, Kuopio, Finland; Tampere University Medical School, Tampere, Finland; University of Copenhagen, Copenhagen, Denmark). Plasma total homocysteine concentration and the risk of acute coronary events: the Kuopio Ischaemic Heart Disease Risk Factor Study. J Intern Med 2000; 248: 217–222.
SEMBLANZAS DE LOS PREMIOS NOBEL

La Academia Sueca de las Ciencias anuncio el 7 de octubre de 2008 que el Premio Nobel de Fisica de aquel ano recaia, por un lado, en el cientifico americano de origen japones Yoichiro Nambu (Tokio, 1921) y, por otro, en los investigadores japoneses Makoto Kobayashi (Nagoya, 1944) y Toshihide Maskawa (Nagoya, 1940). Nambu, en la actualidad catedratico emerito en el Instituto Enrico Fermi de Chicago, fue galardonado por «el descubrimiento del mecanismo de rotura espontanea de la simetria en fisica subatomica». Kobayashi y Maskawa, catedraticos emeritos en el Acelerador de Altas Energias de Tsukuba (KEK) y en el Instituto de Fisica Teorica Yukawa de Kyoto, respectivamente, fueron premiados por «el descubrimiento del origen de la simetria rota que predice la existencia de al menos tres familias de quarks en la naturaleza» [1]. Los trabajos reconocidos a Nambu y a Kobayashi y Maskawa parecen entonces muy cercanos entre si. Sin embargo, aparte de abordar problemas relacionados con el importante concepto de simetria en fisica teorica, estos dos descubrimientos cientificos son conceptualmente bastante diferentes. Mientras que Nambu mostro como simetrias aparentemente ausentes en fisica de particulas existen realmente a un nivel mas profundo, Kobayashi y Maskawa analizaron las implicaciones que tiene el incumplimiento real de una ley de simetria a la hora de catalogar las particulas elementales que constituyen los bloques fundamentales de la materia. Pensemos en un sistema fisico arbitrario cuyo comportamiento esta regido por un conjunto de leyes expresadas en forma de ecuaciones matematicas. Si el sistema se encuentra en un estado cuyas propiedades no se ven afectadas al realizar un cambio o transformacion en el mismo, diremos que el estado es simetrico bajo dicha transformacion. Analogamente, las leyes fisicas que gobiernan el sistema son simetricas o invariantes bajo una transformacion si las ecuaciones correspondientes no cambian al implementar sobre ellas la mencionada transformacion. Naturalmente, el concepto de transformacion que estamos considerando aqui es bastante amplio. Tenemos transformaciones espaciales, tales como una rotacion de un cierto angulo alrededor de un eje, una reflexion respecto de un plano, una translacion definida por un vector o la llamada inversion espacial (tambien llamada transformacion de paridad y simbolizada por la letra P):
MOLECULAR CHARACTERIZATION OF THE 16SR II GROUP OF PHYTOPLASMA ASSOCIATED WITH FABA BEAN (Vicia faba L.) IN SAUDI ARABIA

This study was conducted to detect for the first time the occurrence of phytoplasma in symptomatic faba bean plants in Saudi Arabia. Faba bean is one of the most widely grown protein-producing food legumes. Ten leaf and stem samples showing symptoms of phyllody and stunting were collected from plants grown in Agricultural Research Station field Riyadh region, Saudi Arabia during December, 2011. The temperature in this area ranged between 15-20oC. Two representative faba bean symptomatic leaves out of the total samples collected from the field in the visited area tested positive for plant pathogenic phytoplasmas using P1/P7 primer pair in the first round of PCR analysis. Nested PCR was conducted using the R16F2n/R16R2 primer pair, which yielded fragment of approximately 1.2 kb. No PCR products were obtained from the DNA extraction from asymptomatic plants. Phylogenetic analysis of the 16S rRNA gene of the obtained nucleotide sequence indicated that the two faba bean phytoplasmas isolates (faba bean phyllody and faba bean stunting) collected from Riyadh region of Saudi Arabia were more closely related to the phytoplasmas peanut witches'- broom group since its 16Sr RNA sequence showed a 97.2% to 99.3% identity with most members of this group. The nucleotide sequence for the Saudi Arabian isolates in this study were deposited in the GenBank with accession no. JQ861532 and JQ861533 respectively. The rest of the collected samples were assayed using cDNA probe for phytoplasma detection by dot and tissue blot hybridization. No hybridization was observed with DNA extracts from healthy plants.
Solution Structure of n‐Type DNA Oligomers Possessing a Covalently Cross‐Linked Watson–Crick Base Pair Model

We have recently reported a general synthetic route to DNA oligomers containing a covalently cross-linked Watson ± Crick base pair model. In this paper, using n-type DNA oligomers as examples, we present experimental results demonstrating that these oligomers indeed exhibit conformational properties close to those of corresponding native DNA duplexes. For the current studies, we used DNA oligomers I and II, containing an arbitrarily chosen base sequence. To compare the global conformations of I and II with that of the corresponding native DNA duplex III, we first measured their circular dichroism (CD) spectra (Figure 1). These exhibited the distinct characteristics of B-form DNA. Figure 2 summarizes the temperature-dependent CD spectra, yielding the melting temperature (Tm) curves and thermodynamic parameters (Table 1) for
An Empirical Model of Correlated Traffics in LTE-Advanced System through an Innovative Simulation Tool

Long Term Evolution Advanced (LTE-Advanced) LTE-Advanced is not new as a radio access technology, but it is an evolution of LTE to enhance the performance. This generation is the continuation of 3GPP-LTE (3GPP: 3rd Generation Partnership Project) and it is targeted for advanced development of the requirements of LTE in terms of throughput and coverage. The performance evaluation process of any network should be based on many models and simulations to investigate the network layers and functions and monitor the employment of the new technologies especially when this network includes large-bandwidth and lowlatency links such as LTE and LTE-Advanced networks. Therefore, it’s necessary to enhance the proposed models of high-speed and high-congested link networks to make these links and traffics fulfill the needs of the huge data which transferred over the congested links. This article offered an innovative model of the most correlated links of LTE-Advanced system using the Network Simulator 2 (NS-2) with investigation of the link parameters. Keywords—3GPP, LTE, LTE-Advanced, NS-2.
Environment and security

▪ Abstract A broadening research program focused on environment and security emerged over the past 30 years. But the meaning and operationalization of environment and security have been an implicit and increasingly explicit part of the scholarly debate. Approaches range from the more specific focus on the linkages between environmental change and violent (deadly) conflict, the possible role of environmental conservation, cooperation, and collaboration in promoting peace, and the broader focus on potential relationships between environmental change and human security (understood as freedom from both violent conflict and physical want). In addition to the different conceptions of environment and security, the type and direction of causal relationships among different factors continue to be a focus of research. With respect to the environment and violent conflict, which constitute the largest explicit research stream on environment and security, the debate has centered on whether and why environmental scarci.
Modèles eulériens et simulation numérique de la dispersion turbulente de brouillards qui s'évaporent

Le modele multi-fluide permet de decrire par une approche Eulerienne les sprays polydisperses et apparait donc comme une methode indiquee pour les applications de combustion diphasique. Sa pertinence pour la simulation a l’echelle d’applications industrielles est evaluee dans ce travail, par sa mise en oeuvre dans des configurations bi-dimensionnelle et tri-dimensionnelle plus representatives de ce type de simulations. Cette evaluation couple une etude de faisabilite en terme de cout de calcul avec une analyse de la precision obtenue, par des comparaisons avec les resultats de methodes de references pour la description des sprays. Afin de definir une telle reference, une hierarchisation des modeles de spray est proposee dans ce travail, soulignant les niveaux de modelisation associee aux diverses methodes. Une premiere configuration d’ecoulements tourbillonnaires est utilisee pour caracteriser la methode multi-fluide. L’etude de la structure mathematique du systeme de lois de conservation permet d’analyser la formation de singularites et de fournir les outils permettant d’evaluer leur impact sur la modelisation. Cette etude permet egalement de deriver un schema numerique robuste et efficace pour des configurations bi- et tri-dimensionnelle. La description des dynamiques de gouttes conditionnees par la taille est evaluee dans ces configurations tourbillonnaires au moyen de comparaisons quantitatives, sur des champs instantanes, ou le multi-fluide est confronte a une methode Lagrangienne, ainsi qu’a des resultats experimentaux. Afin d’evaluer le comportement de la methode multi-fluide dans des configurations plus representatives des problematiques industrielles, le solveur MUSES3D est developpe, permettant, entre autres, une evaluation fine des methodes de resolution des sprays. Une implementation originale de la methode multi-fluide, conciliant genericite et efficacite pour le calcul parallele, est realisee. Le couplage de ce solveur avec le code ASPHODELE, developpe au CORIA, permet d’effectuer une evaluation operationnelle des approches Euler/Lagrange et Euler/Euler pour la description des ecoulements diphasiques a inclusions dispersees. Finalement, le comportement de la methode multi-fluide dans des jets bi-dimensionnels et dans une turbulence homogene isotrope tri-dimensionnelle permet de montrer sa precision pour la description de la dynamique de sprays evaporant dans des configurations plus complexes. La resolution de la polydispersion du spray permet de decrire precisement la fraction massique de combustible en phase vapeur, un element cle pour les applications de combustion. De plus, l’efficacite du calcul parallele par decomposition de domaine avec la methode multi-fluide permet d’envisager son utilisation a l’echelle d’applications industrielles.
Growth Conditions Influence Expression of Cell Surface Hydrophobicity of Staphylococci and Other Wound Infection Pathogens

The initial adhesion of microbes to tissue and solid surfaces can be mediated by hydrophobic interaction. Expression of microbial cell surface hydrophobicity (CSH) is influenced by growth conditions, and often best expressed after growth under nutrient‐poor conditions, or “starvation. ” In the present study, the CSH of 133 strains of Enterobacteriaceae, Staphylococcus aureus, coagulase‐negative staphylococci, Enterococcus faecalis, group A streptococcus, Pseudomonas aeruginosa, Clostridium perfringens, Bacteroides fragilis, Peptococcus magnus, and of 8 Candida albicans strains was measured by the salt aggregation test after growth on hematin agar in a 5% CO2 atmosphere, or under anaerobiosis. Cells of all but 8 strains expressed pronounced or moderate CSH, i.e., they aggregated in 0.01‐2 M ammonium sulfate. When the agar surface was covered by human serum (diluted 1:5) to mimic growth conditions in a wound, 94 strains expressed higher CSH, and 44 strains the same CSH as after growth without serum. The CSH of 12 strains of different species was measured after growth on blood, hematin and PDM agar, with or without serum, and in an aerobic or a 5% CO2 atmosphere. The highest CSH was expressed after growth in 5% CO2 with serum, and the lowest growth after on blood agar in aerobic atmosphere. Identical results were obtained with native and heat‐inactivated (56 C, 20 min) serum. The reduced surface tension obtained in 5% CO2, as well as yet unidentified serum factors, promotes expression of CSH.
Regulation of tissue factor coagulant activity on cell surfaces

Summary. Tissue factor (TF) is a transmembrane glycoprotein and an essential component of the factor VIIa‐TF enzymatic complex that triggers activation of the coagulation cascade. Formation of TF‐FVIIa complexes on cell surfaces not only trigger the coagulation cascade but also transduce cell signaling via activation of protease‐activated receptors. Tissue factor is expressed constitutively on cell surfaces of a variety of extravascular cell types, including fibroblasts and pericytes in and surrounding blood vessel walls and epithelial cells, but is generally absent on cells that come into contact with blood directly. However, TF expression could be induced in some blood cells, such as monocytes and endothelial cells, following an injury or pathological stimuli. Tissue factor is essential for hemostasis, but aberrant expression of TF leads to thrombosis. Therefore, a proper regulation of TF activity is critical for the maintenance of hemostatic balance and health in general. TF‐FVIIa coagulant activity at the cell surface is influenced not only by TF protein expression levels but also independently by a variety of mechanisms, including alterations in membrane phospholipid composition and cholesterol content, thiol‐dependent modifications of TF allosteric disulfide bonds, and other post‐translational modifications of TF. In this article, we critically review the key literature on mechanisms by which TF coagulant activity is regulated at the cell surface in the absence of changes in TF protein levels with specific emphasis on recently published data and provide the authors’ perspective on the subject.
Avaliação de Interface Grafica de Cursos a Distância Via Web

Este estudo teve como objetivo avaliar a interface grafica do curso a distância Voluntariado, Conceitos e Motivacao do AFS Intercultura Brasil sob o ponto de vista da sua ergonomia e usabilidade. A abordagem adotada foi a de avaliacao por especialistas e o metodo foi de avaliacao heuristica. A avaliacao heuristica foi aplicada por quatro especialistas que realizaram um julgamento de valor sobre as qualidades ergonomicas de cada item que compoe a interface. A analise dos dados se deu mediante de analise quantitativa das questoes fechadas do instrumento da escala gravidade dos problemas de usabilidades. Os resultados encontrados demonstram que a interface do curso atende parcialmente aos criterios de ergonomia e usabilidade.