Miracle-dz/UniFAR-FTUs huggingface dataset:
Management of User Revocation with Public Auditing for Shared Data in the Cloud

Cloud computing is the biggest innovation ,which uses advanced computational power and it improves data sharing and data storing capabilities. Main difficulty with cloud computing was data integrity, data privacy and data access by unauthorised users. TTA (Trusted Third Party) is used to store and share data in cloud computing. With data storage and sharing services in the cloud, users can easily modify and share data as a group. In this project to verify the integrity of the shared data, members in the group needs to compute signatures on all shared data blocks. Different blocks in shared data are generally signed by different users due to data modifications performed by different users. User revocation is one of the biggest security issue in groups. During user revocation shared data block signed by revoked user needs to download and re-sign by existing user . The existing systems downloads the entire file and verifies them to resign.This task is very difficult due to the large size of shared data blocks on cloud. Since a novel public auditing mechanism introduced for maintaining integrity of shared data with efficient user revocation in the cloud.This mechanism is based on proxy re-signatures concept, which allows the cloud to re-sign blocks on behalf of existing users during user revocation, so that downloading of shared data blocks is not required. It also monitor batch to verify multiple auditing tasks simultaneously .
OPTIMIZATION OF BINARY FINGERPRINTING DESIGN FOR POSITIONING SYSTEMS. OPTIMIZACIÓN DEL DISEÑO DE ‘FINGERPRINTING’ BINARIO PARA SISTEMAS DE LOCALIZACIÓN

Location Based Services (LBS) have become an essential part of our dayto-day life. One clear example is the well-known Global Positioning System (GPS) developed around 1970 and which has turned out to be a successful solution for outdoor environments. In fact, it is still used by the vast majority of the devices around the world. More recently, the scientific community has focused on Indoor Positioning Systems (IPS) which still lack of global solutions. A great variety of IPS have been developed using different technologies like Ultra-Sounds, Infra-red, Radio Frequency Waves and more, as well as several positioning techniques. However still none of these systems completely meet the requirements of the market. Schemes having their own dedicated sensor network (WSN) and using a low-cost technology like Bluetooth do stand out from the rest. That is because they achieve an interesting tradeoff between performance and cost. The parameter mostly used for location purposes is the Received Signal Strength Indicator (RSSI) for its simplicity and availability in each device; other measures such as the Angle of Arrival (AOA) or Time of Arrival are more complicated and they usually require additional or dedicated hardware. It is quite often to make advantage of the RSSI parameter by using the so-called Fingerprinting technique because it enables to achieve the best performance. Fingerprinting is now a widely-used technique for IPS that has been further developed by researchers in order to improve its performance. This Bachelor Thesis proposes an optimization of a specific system using this technique in combination with a Binary quantization scheme. The proposed new solutions are the following ones: a positioning estimation technique that improves the one used in the original system; the adoption of a Ternary quantization labelling method enhancing the overall performance of the scheme; The combination of these solutions can be exploited to obtain a small average error on the position estimate. Finally, a simulator has been adapted from the previous one that used the Binary technique. It has allowed to validate the proposed new model and to discover new exploitable possible optimizations.
Homo Politicus Was Born This Way: How Understanding the Biology of Political Belief Promotes Depolarization

Most individuals perceive ideological beliefs as being freely chosen. Recent research in genopolitics and neuroscience, however, suggests that this conviction is partially unwarranted given that biological and genetic factors explain more variance in political attitudes than choice and environmental factors. Thus, it is worth exploring whether exposure to this research on the biological and genetic basis of political attitudes might influence levels of affective polarization because such exposure might reduce the perceived moral culpability of partisan outgroups for the endorsement of oppositional beliefs. In this paper, I employ an online survey experiment on Amazon Mechanical Turk (N = 487) to assess whether exposure to research on the genetic and biological etiology of political attitudes influences warmth toward partisan outgroups and preferences over political compromise. I present evidence that nontrivial numbers of participants in the treatment group reject the underlying science and do not update their genetic trait attributions for political attitudes. However, I also find that when the treatment is successful at increasing biological and genetic trait attributions, exposure to this research depolarizes strong-identifying partisans. Moreover, as partisans increasingly endorse biological and genetic trait attributions for political attitudes, they increasingly hold favorable attitudes toward political outgroups. These patterns suggest a potentially profitable inroad for political polarization interventions going forward. Word Count: 209 words
Perspectives on Neuroscience and Behavior

Self-recognition is a component of higher-order consciousness that is only found in humans, chimpanzees, and orangutans, but not monkeys (macaca mulatta and macaca fascicular). In humans, it has been shown previously that there was a more rapid identification of self when subjects responded with the left hand, which is consistent with a right hemispheric dominance for this task (Keenan and others 1999). Now there is even more convincing evidence that the right hemisphere is preferentially involved in face recognition (Keenan and others 2001). Five right-handed patients undergoing the Wada test (anesthetization of one hemisphere for diagnostic purposes prior to surgery to treat epilepsy) were shown a morphed image of half their face and half a famous face during the test. When completing a forced choice of which face they had seen, after the test, all five patients selected a self-face compared to a famous face following anesthetization of the left hemisphere, and in contrast, four of five selected the famous face following anesthetization of the right hemisphere. In addition, in 10 healthy volunteers who had transcranial magnetic stimulation while viewing pictures containing elements of their own face, the amplitude of the evoked motor potential following stimulation to the right motor cortex was larger than when the left motor cortex was stimulated. These findings strongly support the existence of a lateralized right-hemisphere network that gives rise to self-awareness. It is of considerable interest that such a high-order cognitive system as self-recognition– self-awareness is subserved via lateralized brain functions. This will be of obvious importance in improving our understanding of clinical syndromes involving this system, which can be manifest with symptoms such as detachment from self or misidentification of self.
Group theoretical approaches to many-body problems in chemistry and physics

Group theory finds many applications in chemistry and physics. Here we discuss specifically applications of non-compact Lie groups to problems that involve many identical particles in a harmonic oscillator potential such as in thermodynamic partition functions, modeling quantum dots etc. Powerful methods based upon the theory of symmetric functions play a key role. % E-mail: bgw@phys.uni. torun.pl 1
Role of Intravenous Dexmedetomidine in Prolonging Postoperative Analgesia and Quality of Block Following Spinal Anaesthesia. A Systemic Review and Update

Intravenous dexmedetomidine is been increasingly used in perioperative setting including as an adjunct to local anaesthetic in various regional techniques with an intent either to improve the block quality, to increase the duration of block or to provide sedation and patient comfort during the periblock period. Intravenous dexmedetomidine when used just before or after spinal anaesthesia has many desirable effects such as adequate sedation and patient comfort, longer sensory-motor blockade, prolong postoperative analgesia and reduces post-anaesthesia shivering. A systemic review was done to evaluate and provide update on the use of intravenous dexmedetomidine as an adjunct for spinal anaesthesia. The optimal dose or method of administration of intravenous dexmedetomidine under spinal anaesthesia has not been defined yet. Current literatures suggest a ceiling effect on prolonging post-spinal analgesia after 0.5 mcg/kg boluses. With increasing the dose beyond 0.5 mcg/kg resulted in unwanted side effects notably bradycardia and excessive sedation. Further study with diverse population is needed to define the optimal dose of intravenous dexmedetomidine.
Auxetic materials

Abstract The current status of research into auxetic (negative Poisson's ratio) materials is reviewed, with particular focus on those aspects of relevance to aerospace engineering. Developments in the modelling, design, manufacturing, testing, and potential applications of auxetic cellular solids, polymers, composites, and sensor/actuator devices are presented. Auxetic cellular solids in the forms of honeycombs and foams are reviewed in terms of their potential in a diverse range of applications, including as core materials in curved sandwich panel composite components, radome applications, directional pass band filters, adaptive and deployable structures, MEMS devices, filters and sieves, seat cushion material, energy absorption components, viscoelastic damping materials, and fastening devices. The review of auxetic polymers includes the fabrication and characterization of microporous polymer solid rods, fibres, and films, as well as progress towards the first synthetic molecular-level auxetic polymer. Potential auxetic polymer applications include self-locking reinforcing fibres in composites, controlled release media, and self-healing films. Auxetic composite laminates and composites containing auxetic constituents are reviewed and enhancements in fracture toughness, and static and low velocity impact performance are presented to demonstrate potential in energy absorber components. Finally, the potential of auxetics as strain amplifiers, piezoelectric devices, and structural health monitoring components is presented.
PD01-04: Entinostat, a Novel Histone Deacetylase Inhibitor, Added to Exemestane Improves PFS in Advanced Breast Cancer in a Randomized, Phase II, Double-Blind Study.

Background: Entinostat is a novel, oral, class I-selective histone deacetylase inhibitor (HDACi) that has been shown pre-clinically to inhibit mechanisms of aromatase inhibitor (AI) resistance through epigenetically driven down-regulation of activated growth factor signaling pathways and normalization of estrogen receptor levels. This provided a strong rationale for the entinostat breast cancer (BC) program, which was designed to evaluate entinostat9s ability to increase and/or restore sensitivity to treatment with an AI. Methods: Postmenopausal women with ER+ advanced BC who had ≤ 1 prior chemotherapy and had progressed on a non-steroidal AI were randomized 1:1 to exemestane 25 mg daily + entinostat 5 mg or placebo weekly. Progression free survival (PFS) was the primary endpoint; objective response rate and clinical benefit rate were secondary endpoints and overall survival (OS) was an exploratory endpoint. Prospectively defined subsets of interest included patients with “AI-sensitive and AI-resistant disease”. AI-sensitive was defined as having had a PR, CR or SD for ≥6 months (mos) in the metastatic setting or having completed and remained disease free for ≥12 months post adjuvant therapy. All others were considered AI-resistant. Treatment continued until disease progression or unacceptable toxicity. Response assessments were performed every 8 weeks. Results: 130 women were enrolled (64 exemestane+entinostat [E+E]; 66 exemestane+placebo [E+P]. All but 1 patient had Stage IV disease. 82% had measurable disease, of which 60% had visceral involvement. 42% had 1 prior line of hormonal therapy; 58% had >1. Analysis of the intent-to-treat (ITT) population showed significantly (defined prospectively as p Conclusions: Adding entinostat to exemestane resulted in improved PFS, the study9s primary endpoint. At a median follow-up of 18 mos, the exploratory endpoint of OS was also increased in the E+E arm. Importantly for a phase II study, the PFS benefit in all subsets evaluated was consistent with the overall improvement seen in the ITT. These data demonstrate that the addition of entinostat to AI therapy may prolong the duration of AI therapy, thereby delaying the initiation of subsequent therapies such as chemotherapy, a goal for many breast cancer patients. A phase III study is planned. Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr PD01-04.
Gender Differences in the ST Segment

Background: ST-segment elevation in a structurally normal heart is observed in Brugada- and early repolarization syndrome. The incidence of both syndromes is much higher in males than females. Clinical and basic studies suggest that testosterone plays an important role in ventricular repolarization. Methods and Results: Standard surface 12-lead electrocardiograms recorded in 640 healthy subjects were studied (310 males, 330 females ranging in age from 5 to 89 years) (Study 1). The 3 ST levels (ST-J, -M, and -E) were measured in leads V2 and V5, which are representative of the right and left ventricles, respectively. The effect of androgen-deprivation therapy on the ST segment was also evaluated in 21 prostate cancer patients (Study 2). In both leads, the 3 ST levels were significantly higher in adult males than females (P<0.0001) due to a marked increase after puberty in males. As their age increased, males manifested a gradual reduction in the ST level in both leads; in females, there was a reduction in lead V5 only. In both sexes, all 3 ST levels were significantly higher in lead V2 than V5 (P<0.0001). Androgen-deprivation therapy significantly decreased all 3 ST segments in both leads. Conclusions: Significant age- and gender differences in the ST segment in healthy adults were found, suggesting that testosterone modulates the early phase of ventricular repolarization. (Circ J 2010; 74: 2448-2454)
O cuidado da criança e o direito à saúde: perspectivas de mães adolescentes

OBJECTIVETo analyze child health care and the defense of their rights from the perspective of adolescent mothers.METHODSAn exploratory study with qualitative thematic analysis of data, based on conceptual aspects of care and the right to health, from semi-structured interviews with 20 adolescent mothers ascribed by Family Health teams.RESULTSMaternal reports indicate that child health care requires responsibility and protection, with health practices that promote child advocacy. Gaps in assistance which preclude the full guarantee of the right to child health care were also highlighted.CONCLUSIONThe right to health care assumed different meanings, and the forms to guarantee them were linked to individual behavior in detriment to broader actions that consider health as a social product, connected to the guarantee of other fundamental rights.
Quantized filtering of linear stochastic systems

In this paper we investigate a general multi-level quantized filter of linear stochastic systems. For a given multi-level quantization and under the Gaussian assumption on the predicted density, a quantized innovations filter that achieves the minimum mean square error is derived. The filter is given in terms of quantization thresholds and a simple modified Riccati difference equation. By optimizing the filtering error covariance with respect to quantization thresholds, the associated optimal thresholds and the corresponding filter are obtained. Furthermore, the convergence of the filter to the standard Kalman filter is established. We also discuss the design of a robust minimax quantized filter when the innovation covariance is not exactly known. Simulation and experimental results illustrate the effectiveness and advantages of the proposed quantized filter.
Editorial

The development of genetic algorithms is attributed to John Holland, his colleagues and students at the University of Michigan. Studies by Holland (1975), De Jong (1975), Goldberg (1989) and others have demonstrated, both theoretically and experimentally, that Genetic Algorithms generally have a superior performance over that of traditional search methods. Genetic algorithms are stochastic global search methods that are essentially based on the concepts of natural biological evolution. They utilize a set of candidate solutions (a coded population of potential solutions to a given problem) which are left to ‘evolve’ using artificial genetic operators such as reproduction, crossover and mutation. They work by combining the Darwinian ‘survival of the fittest’ principle with a probabilistic information exchange strategy inspired by the processes of natural genetics, to form a structured yet randomized search algorithm that promises to be highly capable of identifying optimal or nearoptimal solutions to a wide range of search, optimization and machine learning problems. Hence, they become general-purpose search and optimization methods applicable to a wide variety of applications both within and beyond the subject area of measurement and control. There are a number of key texts that provide details of practical applications, in particular Holland (1992), Fogel (1994), Goldberg (1989; 1994), Mitchell (1996) and Fleming and Zalzala (1997). The recent surge in interest in evolutionary algorithms is illustrated through the two UK IEE/IEEE International Conferences, GALESIA , in 1995 and 1997 and the Congress on Evolutionary Computation in Washington DC in 1999. These conferences provided a platform for dissemination of developments of these techniques and demonstrated how they can be applied to a wide range of applications including manufacturing, process industries and aerospace and employed in optimization, system identification, control and scheduling, the list being extensive. In this special issue, four papers provide a flavour of the current developments in the technology and the diversity of the applications. In the first paper, Ben McKay, from the research group at Newcastle University, investigates the important problem of providing models for chemical engineers to potentially improve process monitoring, optimization and control. The investigation proposes combining genetic programming with continuum regression to develop models for applications in food processing and biotechnology. The paper by Euan McGookin presents an interesting optimization application of a navigation system using genetic algorithms. Using a nonlinear model, a genetic algorithm is used to obtain key design parameters of a sliding mode controller. The performance is evaluated by the ability of the system to track a desired course. The paper by Keshav Dahal from the University of Strathclyde illustrates how genetic
Physiotherapy clinical teachers’ perceptions on important attributes in teaching – A Nigerian perspective

Abstract Aim: The objective of this study was to investigate Nigerian physiotherapy teachers’ self-assessment on the attributes of effective clinical teaching and the importance attached to these attributes. Methodology: The McGill Clinical Teacher Evaluation including self-assessment and importance of the attributes of clinical teaching was used to survey 46 clinicians and academicians who teach physiotherapy in five of the seven physiotherapy programs in Nigeria. Descriptive and non-parametric statistics were used to analyze and interpret data. Results: Overall, the Nigerian teachers’ self- and importance rating on McGill clinical teachers’ attributes was high. The teachers rated themselves least on attributes related to challenging content from text and journals and encouraging student to take responsibility for their learning, while customizing clinical teaching to suit the students’ level and occasionally challenging content from texts and journals were the least important attributes. Academic faculty gave higher importance ratings for displaying good judgment in decision making than clinical faculty, while a modest link was found between years of post-professional experience and self-perception as effective teacher. Conclusion: The attributes with lowest self-assessment and importance may indicate areas for future concentration particularly in the Nigerian academic community, including curriculum content and design of physiotherapy teachers training.
Survival in Medically Treated Patients with Homozygous β-Thalassemia

Background The prognosis of patients with homozygous β-thalassemia (thalassemia major) has been improved by transfusion and iron-chelation therapy. We analyzed outcome and prognostic factors among patients receiving transfusions and chelation therapy who had reached the age at which iron-induced cardiac disease, the most common cause of death, usually occurs. Methods Using the duration of life without the need for either inotropic or antiarrhythmic drugs as a measure of survival without cardiac disease, we studied 97 patients born before 1976 who were treated with regular transfusions and chelation therapy. We used Cox proportional-hazards analysis to assess the effect of prognostic factors and life-table analysis to estimate freedom from cardiac disease over time. Results Of the 97 patients, 59 (61 percent) had no cardiac disease; 36 (37 percent) had cardiac disease, and 18 of them had died. Univariate analysis demonstrated that factors affecting cardiac disease-free survival were age at the start of che.
Tumour Viruses

Are Observations on Tumour Viruses in Animals Applicable to Man? There is now abundant evidence that viruses of several different groups (leukemogenic viruses, papovaviruses, poxviruses and adenoviruses) can, when injected into highly susceptible animals, produce tumours. Whether viruses also cause cancer in man is a tantalizing question. For decades it has seemed that the solution must be only just out of reach and that as our reach is extended by modern knowledge and techniques the solution must come within our grasp. And yet we are still without an answer to this simple and fundamental question.
Aniridia

People with aniridia can also have other eye problems. Increased pressure in the eye (glaucoma) typically appears in late childhood or early adolescence. Clouding of the lens of the eye (cataracts), occur in 50 percent to 85 percent of people with aniridia. In about 10 percent of affected people, the structures that carry information from the eyes to the brain (optic nerves) are underdeveloped. Individuals with aniridia may also have involuntary eye movements (nystagmus) or underdevelopment of the region at the back of the eye responsible for sharp central vision (foveal hypoplasia). Many of these eye problems contribute to progressive vision loss in affected individuals. The severity of symptoms is typically the same in both eyes.
Stereoencephalotomy.∗

Summary The stereotaxic technique has been applied to the human brain for relief of mental disorders with a prevalent emotional component and of intractable pain. In epileptics suffering from grand and petit mal, the electrothalamogram was recorded, revealing spike discharges; lesions placed in the vicinity of the commissura media diminished frequency and severity of the petit mal attacks.