Miracle-dz/UniFAR-FTUs huggingface dataset:
Provably secure policy-based cryptography

The concept of policy-based cryptography (PBC) is a promising paradigm for trust establishment and authorization in large-scale open environments. A policy-based encryption scheme (PBE) allows to encrypt a message according to a policy so that only entities fulfilling the policy are able to perform the decryption of the message. Symmetrically, a policy-based signature scheme (PBS) assures that only entities fulfilling a given policy are able to generate a valid signature according to the policy. Existing PBC schemes suffer from either inefficiency or lack of strong security arguments. In this paper, we introduce policy-oriented strong security models for PBE and PBS schemes. Then, we present concrete and elegant PBE and PBS schemes from bilinear pairings. Our schemes are not only at least as efficient as existing schemes, but also, and more importantly, provably secure under the defined security models. keywords: Access Structures, Authorization, Trust Establishment, Bilinear Pairings, Provable Security
Material evaluation and development support project for high current SiC power module

Power semiconductor devices play an important role in the technology for carbon dioxide reduction. This report presents a brief history of technological trends in silicon carbide (SiC) power devices with respect to practical use. The report presents the outline of the 4-year KAMOME project that started 2011. The report includes discussion on material development and evaluation of a high current SiC power module.
Psychophysical Experiment of Vibrotactile Pattern Perception by Human Fingertip

In this paper, a preliminary experimentation is carried out to investigate the necessary stimulation conditions for a pattern display that may be used for the blind to display obstacle distribution. To design an efficient vibrotactile display device of array-type and compact size, the effect of some main parameters, such as the amplitude and frequency of vibration and the spacing and quantity of vibrated pins on vibrotactile perception, should be considered. Through experiment and analysis, the minimal amplitude of vibrating stimuli and the spacing effect on the perception of vibrotactile pattern are investigated and discussed. Also an appropriate type of actuator satisfying the requirements of a compact tactile display device for the effective transfer of pattern information is discussed.
Determination of stable isotopes of calcium in biological fluids by fast atom bombardment mass spectrometry.

High-resolution fast atom bombardment mass spectrometry was used to measure the isotopic abundances of calcium in plasma and urine. Since the method is very sensitive (>5 x 10/sup 10/ ions/.mu.g of calcium), only 2 to 5 . mu.L of sample is required. Repetitive measurements of the /sup 42/Ca//sup 40/Ca ratio in plasma and urine require about 3 min and typically have a relative standard deviation of 0.2-0.5%. No sample preparation is necessary and measurements are made by using instrumentation that is often available in larger research laboratories.
60 GHz millimeter-wave compact TFMS bandstop filter using transversal resonator in 0.18μm CMOS technology

This study presents the implementation of a millimeter-wave compact bandstop filter (BSF) using the standard 0.18 μm CMOS process. The topology is based on transversal signal interference technique, obtained by connecting two transmission lines with proper characteristic impedances and electrical lengths in parallel. Sharp-rejection characteristics are obtained without using any extra resonators. Moreover, BSF having single-characteristic impedance is analyzed for design simplicity. A compact thin film microstrip structure with meandered signal line is properly constructed without any post processing steps. The overall filter occupies a compact circuit area of less than 0.25 λg × 0.25 λg and exhibits a 20 dB stopband fractional bandwidth of 21% and high-rejection of about -38 dB at centre frequency of 60 GHz. A good agreement between the predicted and measured results is observed up to 110 GHz.
TOWARDS THE INTEGRATED CONCEPT AND MEASUREMENT OF ORGANIZATIONAL POSITIVITY

Purpose: Despite the dynamic growth of Positive Organizational Scholarship (POS) there have been very few attempts to discover a structure of positive phenomena at organizational level and, taking a step further, conceptualize and operationalize organizational positivity. The paper attempts to fill that gap by proposing a coherent concept of positive orientation along with its measure. Methodology/approach: To achieve the purpose the philosophy of creating and using orientations at organizational level has been reviewed, the underlying structure of organizational alignment has been selected and positive phenomena have been conceptually attributed to five dimensions of positive orientation: leadership, culture, strategy, design and human capital. The conceptually created framework has been empirically tested using factor analysis and reliability analysis. Findings: The research results confirm that positive orientation is a multi-dimensional construct with five dimensions: positive leadership, positive culture, positive strategy, positive design and positive human capital. Implications/limitations: The paper has main implications for further research. The concept of positive orientation can be used as a useful tool not only for measuring organizational positivity, but also for researching its antecedents and consequences. Originality/value: The concept of positive orientation is one of the very few integrated concepts of positivity at organizational level. It is fully original and has been conceptualized and operationalized using commonly accepted methods of construct development.
Development of Unsteady Aerodynamic and Aeroelastic Reduced-Order Models Using the FUN3D Code

utter, root locus. Abstract. Recent signicant improvements to the development of CFD-based un- steady aerodynamic reduced-order models (ROMs) are implemented into the FUN3D unstructured ow solver. These improvements include the simultaneous excitation of the structural modes of the CFD-based unsteady aerodynamic system via a single CFD solution, minimization of the error between the full CFD and the ROM unsteady aero- dynamic solution, and computation of a root locus plot of the aeroelastic ROM. Results are presented for a viscous version of the two-dimensional Benchmark Active Controls Technology (BACT) model and an inviscid version of the AGARD 445.6 aeroelastic wing using the FUN3D code.
Changing Functional Connectivity in the Child ’ s Developing Brain Affected by Ischaemic Stroke

Group studies using resting state functional Magnetic Resonance Imaging (rs-fMRI) enable the analysis of spatial and temporal brain signal correlations, independent of a specific stimulus. Here, we assess adaptive brain plasticity in developing resting state networks after ischaemic stroke of children between 7 and 17 years. We analyse long range and short range connectivity patterns during ageing using a graph representation and corresponding measurements. The evaluation is performed using rs-fMRI data of 16 control subjects and 16 stroke patients with corresponding psychological tests. The developing functional connectivity affected by ischaemic stroke exhibits significant differences to the control cohort. This suggests an influence of regenerating plasticity on short range long range connectivity changes, degree distribution and specific brain areas over age.
Heterogeneity of fiber characteristics in the rat masseter and digastric muscles

The functional requirements in muscle use are related to the fiber type composition of the muscles and the cross‐sectional area of the individual fibers. We investigated the heterogeneity in the fiber type composition and fiber cross‐sectional area in two muscles with an opposing function, namely the digastric and masseter muscles (n = 5 for each muscle) of adult male rats, by means of immunohistochemical staining according to their myosin heavy chain (MyHC) content. The digastric and masseter muscles were taken from Wistar strain male rats 10 weeks old. In the masseter six predefined sample locations were examined; in the digastric four. Most regions showed dominant proportions of type IIA and IIX fibers. However, both muscles also revealed a regional heterogeneity in their fiber type distribution. In the digastric, type I fibers were detected only at the central and deep areas of the anterior and posterior belly, respectively. Meanwhile, the peripheral area of the anterior belly contained a higher proportion of type IIB fibers. In the masseter, the type I fibers were absent. In the superficial masseter the distribution of IIA and IIB fibers was significantly different between the superior and inferior regions. In the deep masseter, regional differences were observed among all four examined areas, of which the posterolateral region contained the highest proportion of type IIB fibers. The cross‐sectional areas of type IIB fibers were always the largest, followed by the type IIX and IIA fibers. Only a few differences in cross‐sectional area of corresponding fiber types were detected between the various sites. In conclusion, the masseter and digastric muscles showed an obvious heterogeneity of fiber type composition and fiber cross‐sectional area. Their heterogeneity reflects the complex role of the both muscles during function. This detailed description of the fiber type composition can serve as a reference for future studies examining the muscular adaptations after the onset of various diseases in the masticatory system.
Design Problem Solving: A Task Analysis

I propose a task structure for design by analyzing a general class of methods that I call propose-critique-modify methods. The task structure is constructed by identifying a range of methods for each task. For each method, the knowledge needed and the subtasks that it sets up are identified. This recursive style of analysis provides a framework in which we can understand a number of particular proposals for design problem solving as specific combinations of tasks, methods, and subtasks. Most of the subtasks are not really specific to design as such. The analysis shows that there is no one ideal method for design, and good design problem solving is a result of recursively selecting methods based on a number of criteria, including knowledge availability. How the task analysis can help in knowledge acquisition and system design is discussed.
Sequencing goes 454 and takes large‐scale genomics into the wild

Sometimes, science takes a big leap forward. This is often due to new technology that allows the study of questions previously difficult or even impossible to address. An example of this is provided in this issue ( Vera et al. 2008 ) by the first large‐scale attempt toward genome sequencing of an ecologically important model, based on the new ‘454‐sequencing technology’. Using this new technology, the protein‐coding sequences of the Glanville fritillary butterfly genome have now been largely characterized.
A Study on Business Management Innovation, Integration and Lean Six Sigma Implementation

The essence of business management innovation is to continuously improve and optimize business processes and thus improves business competency and profitability. Based on the analysis of the characteristics of business management innovation and the nature of Lean Six Sigma, the paper presents that Lean Six Sigma is an effective way to achieve business management innovation. Finally, successful cases of business management innovation based on Lean Six Sigma are given, including Baosteel, AVIC I and Dell as models to be learned by other enterprises.
Fine structure mapping of the tryptophan genes in Pseudomonas putida.

ave used the tryptophan pathway to develop a gene transfer system via wta:sducing bacteriophage in Pseudomonas putida ( CHAKRAEARTY, GUNSALUS and GUNSALUS 1967). The tryptophan pathway itself has proved interesting in the number and nature of its enzymes, their mode of regulation, and the organization of the genes in the bacterial chromosome. Enzymatic analysis of extracts of prototrophic and auxotrophic strains grown on limiting and excess tryptophan levels has demonstrated six enzymatic activities under three types of regulation (CRAWFORD and GUNSALUS 1966). The reactions and gene designations are shown in Figure 1. Assignation of letters for the individual genes follows the suggestion of DEMEREC, et al., (1966). Three early enzymes, anthranilate synthase (AS) , phosphoribosyl transferase (PRT) , and the condensing enzyme for indole ring closure, indole-glycerol phosphate synthase (InGPS), are under repression control; they are produced in increased amounts on exhaustion of tryptophan, though not necessarily in a coordinate manner. The AS is feedback inhibited by tryptophan (QUEENER and GUNSALUS 1968). The genes controlling the synthesis of these enzymes (trpA (AS), trpB (PRT), and trpD (InGPS), are closely linked by transduction (CHAKRABARTY, GUNSALUS and GUNSALUS 1967, 1968). A first estimate of the size of the catalytically active proteins was obtained by molecular sieve filtration on Sephadex G-1 00 ( ENATSU and CRAWFORD 1968). The PRT and InGPS activities were recovered in better than 80% yield with retention volumes indicating respective molecular weights of 64,000 and 32,000. The recovery of AS activity rarely exceeds 20% and has subsequently been shown to require two protein fractions, separable from the other tryptophan enzymatic activities, with molecular sizes of about 17,000 and 80,000 estimated from a Sephadex G-100 column (QUEENER and GUNSALUS 1968). Of ten AS mutants examined, all lacked activity for the larger component. There is evidence for an intermediate between chorismate and anthranilate, based in part on the activity of the two enzyme components when separated by a dialysis membrane. SOMERVILLE and ELFORD (1967) have also presented evidence for several
[Ureteral injury after posterior lumbar surgery. Case report].

INTRODUCTION The percentage of complications in posterior lumbar spine surgery varies from 1,9 to 10,8%. Injury to retroperitoneal structures is a severe but unfrequent complication. Ureter injury is an extremely rare complication with only 24 documented cases up to date. CASE REPORT 43 year old woman. A deep bleeding was observed while performing a L4-L5 microdiscectomy. It was controlled with firm pressure and hemostatic agents. 36 hours later the patient developed a distended and painful abdomen associated with anemia and an increase in white blood cell count. Abdominal CT and retrograde pyelography confirmed the diagnosis of ureter injury. An emergency laparotomy was perfomed and a total section of the left ureter was treated with a end to end anastomosis. DISCUSSION Ureter injury in posterior lumbar spine surgery can happen due to its close anatomical relationship with the vertebral body and disc. L4-L5 is the level most often affected. Due to the fact the ureter is surrounded by retroperitoneal fat, injury is less likely to happen and thus the low number of documented cases. Although the initial symptomatology may be inespecific, an early diagnosis is essential in order to avoid further complications such as a sepsis or a kidney loss. There are several treatment options although the most often used is the end to end anastomosis specially if there is a complete ureter injury.
Development and Determination of Rutin by Spectrofluorimetric Method

Rutin is a polyphenolic naturally occurring compound potentially having a huge impact in human benefit which includes wound healing, cardiovascular, carcinoma therapeutic activities as well as have nutraceutical benefits. The objective of study was to establish a precise, accurate, sensitive and reliable method for estimation at low concentrations of rutin in biological fluids, using spectrofluorimetric method.A standard curve of rutin was prepared in methanol and serum in the concentration range 1-10 ng/ml. The method was validated in terms of linearity, accuracy and precision.The regression data for rutin in methanol and serum observed to have a good linear relationship with R2> 0.99 over the concentration range of 1-10 ng/ml. This method gave adequate linearity, precision, accuracy and recovery. It is also concluded that method is less time consumption as compared with HPLC, which requires lengthier chromatographic separation.
Embolization of Post-Traumatic Pseudoaneurysm of the Proper Hepatic Artery

38-year old, drunken man had fell from the window and was admited to the hospital with multiple limb fractures and suspicion of traumatic liver injury. Post-contrast CT examination proved the pseudoaneurysm arising caudally from the proper hepatic artery. The indicated angiography should specify location and character of the pseudoaneurysm and allow its subsequent embolization. After placing the catheter tip into its neck the pseudoaneurysm was successfully closed by metal coils and mixture of tissue glue (Histoacryl) and contrast medium (Lipiodol Ultrafluid).
Space–time density of trajectories: exploring spatio-temporal patterns in movement data

Modern positioning and identification technologies enable tracking of almost any type of moving object. A remarkable amount of new trajectory data is thus available for the analysis of various phenomena. In cartography, a typical way to visualise and explore such data is to use a space–time cube, where trajectories are shown as 3D polylines through space and time. With increasingly large movement datasets becoming available, this type of display quickly becomes cluttered and unclear. In this article, we introduce the concept of 3D space–time density of trajectories to solve the problem of cluttering in the space–time cube. The space–time density is a generalisation of standard 2D kernel density around 2D point data into 3D density around 3D polyline data (i.e. trajectories). We present the algorithm for space–time density, test it on simulated data, show some basic visualisations of the resulting density volume and observe particular types of spatio-temporal patterns in the density that are specific to trajectory data. We also present an application to real-time movement data, that is, vessel movement trajectories acquired using the Automatic Identification System (AIS) equipment on ships in the Gulf of Finland. Finally, we consider the wider ramifications to spatial analysis of using this novel type of spatio-temporal visualisation.
The Developmental Toxicity of Complex Silica-Embedded Nickel Nanoparticles Is Determined by Their Physicochemical Properties

Complex engineered nanomaterials (CENs) are a rapidly developing class of structurally and compositionally complex materials that are expected to dominate the next generation of functional nanomaterials. The development of methods enabling rapid assessment of the toxicity risk associated with this type of nanomaterial is therefore critically important. We evaluated the toxicity of three differently structured nickel-silica nanomaterials as prototypical CENs: simple, surface-deposited Ni-SiO2 and hollow and non-hollow core-shell Ni@SiO2 materials (i.e., ~1–2 nm Ni nanoparticles embedded into porous silica shells with and without a central cavity, respectively). Zebrafish embryos were exposed to these CENs, and morphological (survival and malformations) and physiological (larval motility) endpoints were coupled with thorough characterization of physiochemical characteristics (including agglomeration, settling and nickel ion dissolution) to determine how toxicity differed between these CENs and equivalent quantities of Ni2+ salt (based on total Ni). Exposure to Ni2+ ions strongly compromised zebrafish larva viability, and surviving larvae showed severe malformations. In contrast, exposure to the equivalent amount of Ni CEN did not result in these abnormalities. Interestingly, exposure to Ni-SiO2 and hollow Ni@SiO2 provoked abnormalities of zebrafish larval motor function, indicating developmental toxicity, while non-hollow Ni@SiO2 showed no toxicity. Correlating these observations with physicochemical characterization of the CENs suggests that the toxicity of the Ni-SiO2 and hollow Ni@SiO2 material may result partly from an increased effective exposure at the bottom of the well due to rapid settling. Overall, our data suggest that embedding nickel NPs in a porous silica matrix may be a straightforward way to mitigate their toxicity without compromising their functional properties. At the same time, our results also indicate that it is critical to consider modification of the effective exposure when comparing different nanomaterial configurations, because effective exposure might influence NP toxicity more than specific “nano-chemistry” effects.
Clinical characteristics of RA patients with secondary SS and association with joint damage.

OBJECTIVES Secondary SS (sSS) is a common extra-articular manifestation of RA. There are conflicting data regarding the association of sSS with worse joint damage. This study aims to characterize sSS patients in an RA cohort and study the association between sSS and joint damage. METHODS We conducted a cross-sectional study of RA patients with ≥1 year of follow-up at a large academic centre. Subjects with co-morbid diseases that can also result in sicca symptoms were excluded from the analysis. Subjects were considered to have sSS if they were reported as having sSS by their rheumatologist at recruitment into the cohort and had the diagnosis confirmed by chart review. The primary outcome was Sharp score using bilateral hand radiographs at recruitment. We constructed a linear regression model to determine the association of sSS status and Sharp score adjusted by age, gender, disease duration and ACPA and RF status. RESULTS We studied 829 RA subjects, mean age 57 years, 83% female, mean RA duration 13 years, 74% seropositive; 85 subjects (10.3%) had sSS. We observed a female predominance (95.3%), longer mean disease duration (16.9 years) and higher frequency of RF or ACPA positive among patients with sSS and RA. Having sSS at baseline was associated with higher Sharp scores (P = 0.03), independent of age, gender, RA disease duration and seropositive disease. CONCLUSION In our RA cohort, RA subjects with sSS had worse joint damage, suggesting that sSS is a marker of more aggressive disease.