Miracle-dz/UniFAR-FTUs huggingface dataset:
TrustVP: Construction and Evolution of Trusted Chain on Virtualization Computing Platform

Trusted chain technology provides a good opportunity to guarantee software and data integrities on cloud computing platforms. However, trusted chain on current virtualization computing platforms expose some problems, such as non-continuous, difficult to evolve or customize, insecure to transmit for remote attestation. To address these issues, this paper proposes a new approach to construct, protect and update the trusted chain on virtualization computing platform. This approach constructs a complete trusted chain based on full-virtualization technology, ensures the security of the chain by using the seal and unseals features of Trusted Platform Module (TPM), and proposes an algorithm called TPRTM to update the chain. We also describe architecture and a prototype system implementation that can solve the problems mentioned above on current platform. Experimental results show that our method can guarantee the integrities of all customizable programs on the trusted chain while incurring only 2.23% performance degradation. Furthermore, the system has been deployed in a large-scale communication enterprise and the results reveal that our system is safe, stable, and easy to use.
Primary structure and phylogeny of the Calvin cycle enzymes transketolase and fructosebisphosphate aldolase of Xanthobacter flavus

Xanthobacter flavus, a gram-negative facultatively autotrophic bacterium, employs the Calvin cycle for the fixation of carbon dioxide. Cells grown under autotrophic growth conditions possess an Fe(2+)-dependent fructosebisphosphate (FBP) aldolase (class II) in addition to a class I FBP aldolase. By nucleotide sequencing and heterologous expression in Escherichia coli, genes encoding transketolase (EC 2.2.1.1.; CbbT) and class II FBP aldolase (EC 4.1.2.13; CbbA) were identified. A partial open reading frame encoding a protein similar to pentose-5-phosphate 3-epimerase was identified downstream from cbbA. A phylogenetic tree of transketolase proteins displays a conventional branching order. However, the class II FBP aldolase protein from X. flavus is only distantly related to that of E. coli. The autotrophic FBP aldolase proteins from X. flavus, Alcaligenes eutrophus, and Rhodobacter sphaeroides form a tight cluster, with the proteins from gram-positive bacteria as the closest relatives.
Reducing GHG emissions through genetic improvement for feed efficiency: effects on economically important traits and enteric methane production

Genetic selection for residual feed intake (RFI) is an indirect approach for reducing enteric methane (CH4) emissions in beef and dairy cattle. RFI is moderately heritable (0.26 to 0.43), moderately repeatable across diets (0.33 to 0.67) and independent of body size and production, and when adjusted for off-test ultrasound backfat thickness (RFIfat) is also independent of body fatness in growing animals. It is highly dependent on accurate measurement of individual animal feed intake. Within-animal repeatability of feed intake is moderate (0.29 to 0.49) with distinctive diurnal patterns associated with cattle type, diet and genotype, necessitating the recording of feed intake for at least 35 days. In addition, direct measurement of enteric CH4 production will likely be more variable and expensive than measuring feed intake and if conducted should be expressed as CH4 production (g/animal per day) adjusted for body size, growth, body composition and dry matter intake (DMI) or as residual CH4 production. A further disadvantage of a direct CH4 phenotype is that the relationships of enteric CH4 production on other economically important traits are largely unknown. Selection for low RFIfat (efficient, −RFIfat) will result in cattle that consume less dry matter (DMI) and have an improved feed conversion ratio (FCR) compared with high RFIfat cattle (inefficient; +RFIfat). Few antagonistic effects have been reported for the relationships of RFIfat on carcass and meat quality, fertility, cow lifetime productivity and adaptability to stress or extensive grazing conditions. Low RFIfat cattle also produce 15% to 25% less enteric CH4 than +RFIfat cattle, since DMI is positively related to enteric methane (CH4) production. In addition, lower DMI and feeding duration and frequency, and a different rumen bacterial profile that improves rumen fermentation in −RFIfat cattle may favor a 1% to 2% improvement in dry matter and CP digestibility compared with +RFIfat cattle. Rate of genetic change using this approach is expected to improve feed efficiency and reduce enteric CH4 emissions from cattle by 0.75% to 1.0% per year at equal levels of body size, growth and body fatness compared with cattle not selected for RFIfat.
Effect of the promoter 12-O-tetradecanoylphorbol-13-acetate on the evolution of carcinogen-altered cell populations in tracheas initiated with 7,12-dimethylbenz(a)anthracene.

Abstract The aim of these studies was to investigate the effect(s) of the promoter 12- O -tetradecanoylphorbol-13-acetate (TPA) on the evolution of different types of 7,12-dimethylbenz( a )anthracene (DMBA)-initiated rat tracheal epithelial cells in vivo . As described previously, upon exposure to carcinogens, cells appear in the tracheal epithelium which are distinguishable from the majority of the epithelial cells by a markedly enhanced in vitro growth capacity. In the present study, tracheal transplants were exposed in vivo to 35 µg DMBA for 2 weeks and subsequently to 100 µg TPA. Controls were exposed to DMBA alone, TPA alone, or blank pellets alone. Tracheal cells were harvested by enzymatic procedures at 0, 3, 6, 12, or 18 months after the end of exposure to DMBA and at the same time points after the beginning of exposure to TPA or control pellets and were assayed in vitro with the epithelial focus (EF) assay for the frequency of different types of EF-forming units. Control tracheas yielded 4 viable cells harvested. Of these EFs, 10 to 28% were subculturable (EF s ), and no EF s derived from control tracheas exhibited growth in soft agarose EF s,ag + ). Exposure to TPA alone did not increase the yield of EF, EF s , or EF s,ag + above control levels. Carcinogen exposure resulted in a 6- to 20-fold increase in yield of EF, a 2- to 3-fold increase in EF s , and a ≥15-fold increase in yield of EF s,ag + above control levels. Neither the yield of EF nor the yield of EF s was affected by subsequent exposure to TPA. In contrast, there was a marked effect of subsequent TPA exposure on the maintenance and size of the cell pool giving rise to anchorage-independent offspring (EF s,ag + ). By 3 months after DMBA exposure, 15% of EF s were EF s,ag + in both the DMBA and DMBA-TPA exposure groups. However, in cultures established 12 months following exposure to DMBA alone, only 2% of EF s s were EF s,ag + following exposure to DMBA alone. In contrast, at this same time following exposure to DMBA and TPA, 18% of EF s s were EF s,ag + . In a parallel two-stage carcinogenesis study with tracheal transplants, a significant enhancement of the DMBA-induced tumor response by TPA was observed. At 20 months after exposure, 4 and 37%, respectively, of DMBA- and DMBA-TPA-exposed tracheas developed invasive carcinomas. In summary, it appears that initiation can be viewed as a series of complex cellular changes. With time, some of these changes are reversible. Exposure to TPA of cell populations initiated with low doses of DMBA results in the persistence of altered cell populations in the intact tissue. Without TPA treatment, some phenotypically altered cells appear to revert to a more normal state and/or fail to replicate.
Modifiability of abnormal isometric elbow and shoulder joint torque coupling after stroke

Unlike individuals with mild stroke, individuals with severe stroke are constrained to stereotypical movement patterns attributed to abnormal coupling of shoulder abductors with elbow flexors, and shoulder adductors with elbow extensors. Whether abnormal muscle coactivation and associated joint torque patterns can be changed in this population is important to determine given that it bears on the development of effective rehabilitation interventions. Eight subjects participated in a protocol that was designed to reduce abnormal elbow/shoulder joint torque coupling by training them to generate combinations of isometric elbow and shoulder joint torques away from the constraining patterns. After training, subjects demonstrated a significant reduction in abnormal torque coupling and a subsequent significant increase in ability to generate torque patterns away from the abnormal pattern. We suggest the rapid time‐course of these changes reflects a residual capacity of the central nervous system to adapt to a novel behavioral training environment. Muscle Nerve, 2005
Motion-based recognition of people in EigenGait space

A motion-based, correspondence-free technique or human gait recognition in monocular video is presented. We contend that the planar dynamics of a walking person are encoded in a 2D plot consisting of the pairwise image similarities of the sequence of images of the person, and that gait recognition can be achieved via standard pattern classification of these plots. We use background modelling to track the person for a number of frames and extract a sequence of segmented images of the person. The self-similarity plot is computed via correlation of each pair of images in this sequence. For recognition, the method applies principal component analysis to reduce the dimensionality of the plots, then uses the k-nearest neighbor rule in this reduced space to classify an unknown person. This method is robust to tracking and segmentation errors, and to variation in clothing and background. It is also invariant to small changes in camera viewpoint and walking speed. The method is tested on outdoor sequences of 44 people with 4 sequences of each taken on two different days, and achieves a classification rate of 77%. It is also tested on indoor sequences of 7 people walking on a treadmill, taken from 8 different viewpoints and on 7 different days. A classification rate of 78% is obtained for near-fronto-parallel views, and 65% on average over all view.
Identifying effective intervention components for smoking cessation: a factorial screening experiment.

AIMS To identify promising intervention components intended to help smokers to attain and maintain abstinence in their quit smoking attempts. DESIGN A fully crossed, six-factor randomized fractional factorial experiment. SETTING Eleven primary care clinics in southern Wisconsin, USA. PARTICIPANTS A total of 637 adult smokers (55% women, 88% white) motivated to quit smoking who visited primary care clinics. INTERVENTIONS Six intervention components designed to prepare smokers to quit, and achieve and maintain abstinence (i.e. for the preparation, cessation and maintenance phases of smoking treatment): (1) preparation nicotine patch versus none; (2) preparation nicotine gum versus none; (3) preparation counseling versus none; (4) intensive cessation in-person counseling versus minimal; (5) intensive cessation telephone counseling versus minimal; and (6) 16 versus 8 weeks of combination nicotine replacement therapy (nicotine patch + nicotine gum). MEASUREMENTS Seven-day self-reported point-prevalence abstinence at 16 weeks. FINDINGS Preparation counseling significantly improved week 16 abstinence rates (P = .04), while both forms of preparation nicotine replacement therapy interacted synergistically with intensive cessation in-person counseling (P < 0.05). Conversely, intensive cessation phone counseling and intensive cessation in-person counseling interacted antagonistically (P < 0.05)-these components produced higher abstinence rates by themselves than in combination. CONCLUSIONS Preparation counseling and the combination of intensive cessation in-person counseling with preparation nicotine gum or patch are promising intervention components for smoking and should be evaluated as an integrated treatment package.
FreeGaze: a gaze tracking system for everyday gaze interaction

In this paper we introduce a novel gaze tracking system called FreeGaze, which is designed for the use of everyday gaze interaction. Among various possible applications of gaze tracking system, Human-Computer Interaction (HCI) is one of the most promising elds. However, existing systems require complicated and burden-some calibration and are not robust to the measurement variations. To solve these problems, we introduce a geometric eyeball model and sophisticated image processing. Unlike existing systems, our system needs only two points for each individual calibration. When the personalization nishes, our system needs no more calibration before each measurement session. Evaluation tests show that the system is accurate and applicable to everyday use for the applications.
La dissolution du coeur de la Deutschland AG

[eng] The Dissolution of the Heart of Deutschland AG. The aim of this paper is to study to what extent the “heart” of Deutschland AG – defined as the set of cross-shareholdings and cross-mandates between the major german financial institutions – has been quickly eroded. Then, we analyze the impact on the bank/industry model. We find that large financial institutions have abandoned their traditional role of . Hausbank, selling their industrial holdings, deserting supervisory boards and shareholders’ meetings. After presenting the DB strategic mutation, we empirically quantify the destabilization of the “heart” of Deutschland AG. Finally, we consider the implications on the role of banks in the governance of the industry. Classification JEL : G32, G34, G38, L14. [fre] L’objet de cet article est d’examiner dans quelle mesure le « coeur » de la Deutschland AG – defini comme l’ensemble des participations croisees capitalistiques et humaines entre les principales institutions financieres – s’est brutalement erode cette derniere decennie. Puis nous analysons les consequences sur le role des banques dans la gouvernance des societes industrielles cotees. Nous constatons que les institutions financieres ont delaisse le role de Hausbank, cedant massivement leurs participations et desertant les conseils d’administration et les AG. L’article se decompose en trois parties. Apres avoir relate la mutation strategique de la Deutsche Bank, nous quantifions empiriquement l’ampleur de la destabilisation du « coeur » de la Deutschland AG. Nous reflechissons enfin aux consequences sur l’implication des banques dans la gouvernance de l’industrie. Classification JEL : G32, G34, G38, L14.
Robust Position Control of Electro-Hydraulic Actuator Systems Using the Adaptive Back-Stepping Control Scheme

In general, the position control of electro-hydraulic actuator (EHA) systems is difficult because of system uncertainties such as Coulomb friction, viscous friction, and pump leakage coefficient. Even if the exact values of the friction and pump leakage coefficient may be obtained through experiment, the identification procedure is very complicated and requires much effort. In addition, the identified values may not guarantee the reliability of systems because of the variation of the operating condition. Therefore, in this paper, an adaptive back-stepping control (ABSC) scheme is proposed to overcome the problem of system uncertainties effectively and to improve the tracking performance of EHA systems. In order to implement the proposed control scheme, the system uncertainties in EHA systems are considered as only one term. In addition, in order to obtain the virtual controls for stabilizing the closed-loop system, the update rule for the system uncertainty term is induced by the Lyapunov control function (LCF). To verify the performance and robustness of the proposed control system, computer simulation of the proposed control system is executed first and the proposed control scheme is implemented for an EHA system by experiment. From the computer simulation and experimental results, it was found that the ABSC system produces the desired tracking performance and has robustness to the system uncertainties of EHA systems.
Second-order contact kinematics for regular contacts

Second-order contact kinematics for regular contacts, such as surface-surface, curve-curve, curve-surface, and vertex-surface, are formulated in a unified framework, extending Montana's (1988) first-order contact kinematics for surface-surface contact only. Given two rigid bodies in contact with each other, the contact kinematics is the mathematical expression of the relative motion between them and the five dimensional contact coordinate vector. Second-order contact kinematics describes the second-order derivative of the contact coordinate vector in terms of the derivative of the relative twist. The result can be directly applied to geometric integration of contact dynamics.
An extremely radioresistant green eukaryote for radionuclide bio-decontamination in the nuclear industry

Nuclear activities generate radioactive elements which require processes for their decontamination. Although biological remediation has proved to be efficient in industrial applications, no biotechnology solution is currently operational for highly radioactive media. Such a solution requires organisms that accumulate radionuclides while withstanding radioactivity. This paper describes the potentialities of an extremophile autotrophic eukaryote, Coccomyxa actinabiotis nov. sp. , that we isolated from a nuclear facility and which withstands huge ionizing radiation doses, up to 20 000 Gy. Half the population survives 10 000 Gy, which is comparable to the hyper-radioresistant well-known prokaryote Deinococcus radiodurans. The cell metabolic profile investigated by nuclear magnetic resonance was hardly affected by radiation doses of up to 10 000 Gy. Cellular functioning completely recovered within a few days. This outstanding microalga also strongly accumulates radionuclides, including 238U, 137Cs, 110mAg, 60Co, 54Mn, 65Zn, and 14C (decontamination above 85% in 24 h, concentration factor, 1000–450 000 mL g−1 fresh weight). In 1 h, the microalga revealed as effective as the conventional physico-chemical ion-exchangers to purify nuclear effluents. Using this organism, an efficient real-scale radionuclide bio-decontamination process was performed in a nuclear fuel storage pool with an important reduction of waste volume compared to the usual physico-chemical process. The feasibility of new decontamination solutions for the nuclear industry and for environmental clean-up operations is demonstrated.
Keyphrase Cloud Generation of Broadcast News

This paper describes an enhanced automatic keyphrase extraction method applied to Broadcast News. The keyphrase extraction process is used to create a concept level for each news. On top of words resulting from a speech recognition system output and news indexation and it contributes to the generation of a tag/keyphrase cloud of the top news included in a Multimedia Monitoring Solution system for TV and Radio news/programs, running daily, and monitoring 12 TV channels and 4 Radios.
Rajan Transform and its uses in Pattern Recognition

This transform was introduced in the year 1997 by Rajan [2], [4] on the lines of Hadamard Transform. This paper presents, in addition to its formulation, the algebraic properties of the transform and its uses in pattern recognition. Rajan Transform (RT) is a coding morphism by which a number sequence (integer, rational, real or complex) of length equal to any power of two is transformed into a highly correlated number sequence of the same length. It is a homomorphism that maps a set consisting of a number sequence, its graphical inverse and their cyclic and dyadic permutations, to a set consisting of a unique number sequence ensuring the invariance property under such permutations. This invariance property is also true for the permutation class of the dual sequence of the number sequence under consideration. A number sequence and its dual are like an object and its mirror image. For example, the four point sequences x(n) = 3, 1, 3, 3 and y(n) = 2, 4, 2, 2 are duals to each other. Observe that the sum of each sequence is 10 and one sequence could be obtained from the other by subtracting the elements of the other sequence from 5, which is half of its sum. Since RT of a number sequence is an organized number sequence with a high degree of correlation, it is suitable for effective data compression. This paper describes in detail the techniques of using RT for pattern recognition purposes. For example, pattern recognition operations like extracting lines, curves, isolated points and points of intersection of lines from a digital gray or colour image could be carried out using RT based fast algorithms.
CD4+CD25+ Regulatory T Cell Depletion Modulates Anxiety and Depression-Like Behaviors in Mice

Stress has been shown to suppress immune function and increase susceptibility to inflammatory disease and psychiatric disease. CD4+CD25+ regulatory T (Treg) cells are prominent in immune regulation. This study was conducted to determine if anti-CD25 antibody (Ab) mediated depletion of Treg cells in mice susceptibility to stress-induced development of depression-like behaviors, as well as immunological and neurochemical activity. To accomplish this, an elevated plus-maze test (EPM), tail suspension test (TST), and forced swim test (FST) were used to examine depression-like behaviors upon chronic immobilization stress. Immune imbalance status was observed based on analysis of serum cytokines using a mouse cytometric bead array in conjunction with flow cytometry and changes in the levels of serotonin (5-HT) and dopamine (DA) in the brain were measured by high performance liquid chromatography (HPLC). The time spent in the open arms of the EPM decreased significantly and the immobility time in the FST increased significantly in the anti-CD25 Ab-treated group when compared with the non stressed wild-type group. In addition, interlukin-6 (IL-6), tumor necrosis factor-á (TNF-á), interlukin-2 (IL-2), interferon-gamma (IFN-γ), interlukin-4 (IL-4) and interlukin-17A (IL-17A) concentrations were significantly upregulated in the stressed anti-CD25 Ab-treated group when compared with the non stressed wild-type group. Furthermore, the non stressed anti-CD25 Ab-treated group displayed decreased 5-HT levels within the hippocampus when compared with the non stressed wild-type group. These results suggest that CD4+CD25+ Treg cell depletion modulated alterations in depressive behavior, cytokine and monoaminergic activity. Therefore, controlling CD4+CD25+ Treg cell function during stress may be a potent therapeutic strategy for the treatment of depression-like symptoms.
Peer Relationships of Children

The peer relationships and the peer intercourse are the main issues in the studies of children's social development.In 1930s,the study on peer relationships began abroad,and since 1970s plentiful achievements have been acquired about the peer relationships systematically and thoroughly.This article summarizes the related results on peer relationships,providing a reference for further research.