Miracle-dz/UniFAR-FTUs huggingface dataset:
The steady-state thermal effect on dynamic characteristics of gas turbine rotor considering contact effect

Gas turbine rotor works at high temperature, especially the turbine used to expand hot gas and generate power. Temperature may change the elastic modulus of the material as well as cause thermal stress of the gas turbine rotor. Both of these two factors can cause a local stiffness variation of the rotor assembly and thus have an influence on the dynamic characteristics of the rotor. The rotor investigated in this paper is an annular tie rod-fastened rotor which is made of several discs bolted together. The 3-D model of the combined rotor is established considering contact effects. First, a thermal analysis is carried out to evaluate steady-state thermal map which also provided as thermal loads. Then a static structural analysis is performed to obtain the thermal stress state due to restrained expansion of the components of gas turbine. Next, the contact effect of the combined rotor is validated to decrease the stiffness through a modal analysis at room temperature by comparison with results from continuous rotor. Finally, a pre-stressed modal analysis of combined rotor under steady-state thermal loads is calculated to obtain the natural frequencies of transverse vibrating. In the structural and pre-stressed modal analyses, two types of elastic modulus are considered, i.e., the constant elastic modulus and the temperature-dependent elastic modulus. The constant elastic modulus case determines the effect of thermal stress alone and the variable elastic modulus corresponds to the cooperation effect of both thermal stress and elastic modulus degradation in changing the natural frequencies of the rod-fastened rotor.
Assessing Tolerance-Based Robust Short-Term Load Forecasting in Buildings

Short-term load forecasting (STLF) in buildings differs from its broader counterpart in that the load to be predicted does not seem to be stationary, seasonal and regular but, on the contrary, it may be subject to sudden changes and variations on its consumption behaviour. Classical STLF methods do not react fast enough to these perturbations (i.e., they are not robust) and the literature on building STLF has not yet explored this area. Hereby, we evaluate a well-known post-processing method (Learning Window Reinitialization) applied to two broadly-used STLF algorithms (Autoregressive Model and Support Vector Machines) in buildings to check their adaptability and robustness. We have tested the proposed method with real-world data and our results state that this methodology is especially suited for buildings with non-regular consumption profiles, as classical STLF methods are enough to model regular-profiled ones.
Normative Run-Time Reasoning for Institutionally-Situated BDI Agents

Institutions offer the promise of a means to govern open systems, in particular open multi-agent systems. Research in logics, and subsequently tools, supports the specification, verification and enactment of institutions. Most effort to date has focussed on the design-time properties of institutions (either on the normative or the system level), such as whether a particular state of affairs is reachable or not from a given set of initial conditions. Such models are useful in forcing the designer to state their intentions precisely, and for testing (design) properties. However, we identify two problems in the direct utilization of event-based design-time models in the governance of live (running) systems: (i) over-specification of constraints on agent autonomy and (ii) generation of design-time model artefacts. In this paper we present a methodology to tackle these two problems and extract the run-time model from the design-time one. We demonstrate how to derive an event-based run-time model of institutions that can be incorporated into the reasoning processes of autonomous BDI agents to realize practical norm-governed multi-agent systems.
CD44 Gene Polymorphisms in Breast Cancer Risk and Prognosis: A Study in North Indian Population

Background Cell surface biomarker CD44 plays an important role in breast cancer cell growth, differentiation, invasion, angiogenesis and tumour metastasis. Therefore, we aimed to investigate the role of CD44 gene polymorphisms in breast cancer risk and prognosis in North Indian population. Materials & Methods A total of 258 breast cancer patients and 241 healthy controls were included in the case-control study for risk prediction. According to RECIST, 114 patients who received neo-adjuvant chemotherapy were recruited for the evaluation of breast cancer prognosis. We examined the association of tagging SNP (rs353639) of Hapmap Gujrati Indians in Houston (GIH population) in CD44 gene along with a significant reported SNP (rs13347) in Chinese population by genotyping using Taqman allelic discrimination assays. Statistical analysis was done using SPSS software, version 17. In-silico analysis for prediction of functional effects was done using F-SNP and FAST-SNP. Results No significant association of both the genetic variants of the CD44 gene polymorphisms was found with breast cancer risk. On performing univariate analysis with clinicopathological characteristics and treatment response, we found significant association of genotype (CT+TT) of rs13347 polymorphism with earlier age of onset (P = 0.029, OR = 0.037). However, significance was lost in multivariate analysis. For rs353639 polymorphism, significant association was seen with clinical tumour size, both at the genotypic (AC+CC) (P = 0.039, OR = 3.02) as well as the allelic (C) (P = 0.042, OR = 2.87) levels. On performing multivariate analysis, increased significance of variant genotype (P = 0.017, OR = 4.29) and allele (P = 0.025, OR = 3.34) of rs353639 was found with clinical tumour size. In-silico analysis using F-SNP, showed altered transcriptional regulation for rs353639 polymorphism. Conclusions These findings suggest that CD44 rs353639 genetic variants may have significant effect in breast cancer prognosis. However, both the polymorphisms- rs13347 and rs353639 had no effect on breast cancer susceptibility.
Touch-and-guard: secure pairing through hand resonance

Securely pairing wearables with another device is the key to many promising applications, such as mobile payment, sensitive data transfer and secure interactions with smart home devices. This paper presents Touch-And-Guard (TAG), a system that uses hand touch as an intuitive manner to establish a secure connection between a wristband wearable and the touched device. It generates secret bits from hand resonant properties, which are obtained using accelerometers and vibration motors. The extracted secret bits are used by both sides to authenticate each other and then communicate confidentially. The ubiquity of accelerometers and motors presents an immediate market for our system. We demonstrate the feasibility of our system using an experimental prototype and conduct experiments involving 12 participants with 1440 trials. The results indicate that we can generate secret bits at a rate of 7.84 bit/s, which is 58% faster than conventional text input PIN authentication. We also show that our system is resistant to acoustic eavesdroppers in proximity.
Renal transplantation following renal failure due to urological disorders.

BACKGROUND Renal allograft outcome, during an 8 year period (1985-1992), has been assessed in 56 renal transplants performed in 55 patients who had end-stage renal failure as a consequence of urological abnormalities. The abnormalities were: primary vesicoureteric reflux (VUR) or renal dysplasia (26 patients); posterior urethral valves (PUV) (15); neuropathic bladders (6); vesico-ureteric tuberculosis (5); bladder exstrophy (3); and prune belly syndrome (1). Six patients had augmented bladders, and eight transplants were performed in seven patients with urinary diversions. RESULTS Overall, 1 and 5 year actuarial graft survival was 89 and 66%, with mean creatinine of 154 micromol/l +/- 11 (SE) and 145 +/- 9 respectively. Patients with abnormal bladders or conduits (n = 28) had worse graft function than those with normal bladders (n = 28) although graft survival was not significantly different in the two groups at 1 and 5 years: 93 and 75% with normal bladders vs 86 and 57% with abnormal systems. Symptomatic urinary tract infections were common in the first 3 months after transplantation (63%); fever and systemic symptoms occurred in 39% with normal bladders and 59% with abnormal bladders. Urinary tract infection directly contributed to graft loss in six patients with abnormal bladders, but had no consequences in those with normal bladders. CONCLUSIONS Abnormal bladders must be assessed urodynamically before transplantation, and after transplantation adequacy of urinary drainage must be re-assessed frequently. Prophylactic antibiotics are now given for the first 6 months and urinary tract infections must be treated promptly. With these measures, good results, similar to those of patients without urological problems, can be obtained.
One-way Definability of Sweeping Transducer

Two-way finite-state transducers on words are strictly more expressive than one-way transducers. It has been shown recently how to decide if a two-way functional transducer has an equivalent one-way transducer, and the complexity of the algorithm is non-elementary. We propose an alternative and simpler characterization for sweeping functional transducers, namely, for transducers that can only reverse their head direction at the extremities of the input. Our algorithm works in 2EXPSPACE and, in the positive case, produces an equivalent one-way transducer of doubly exponential size. We also show that the bound on the size of the transducer is tight, and that the one-way definability problem is undecidable for (sweeping) non-functional transducers.
Aspect-based sentence segmentation for sentiment summarization

Aspect-based sentiment summarization systems generally use sentences associated with relevant aspects extracted from the reviews as the basis for summarization. However, in real reviews, a single sentence often exhibits several aspects for opinions. This paper proposes a two-stage segmentation model to address the challenge of identifying multiple single-aspect and single-polarity units in one sentence, namely aspect-based sentence segmentation. Our model deals with both issues of aspect change and polarity change occurring in the input sentence. Experiments on restaurant reviews show that our model outperforms state-of-the-art linear text segmentation methods.
Histological evidence for a supraspinous ligament in sauropod dinosaurs

Supraspinous ossified rods have been reported in the sacra of some derived sauropod dinosaurs. Although different hypotheses have been proposed to explain the origin of this structure, histological evidence has never been provided to support or reject any of them. In order to establish its origin, we analyse and characterize the microstructure of the supraspinous rod of two sauropod dinosaurs from the Upper Cretaceous of Argentina. The supraspinous ossified rod is almost entirely formed by dense Haversian bone. Remains of primary bone consist entirely of an avascular tissue composed of two types of fibre-like structures, which are coarse and longitudinally (parallel to the main axis of the element) oriented. These structures are differentiated on the basis of their optical properties under polarized light. Very thin fibrous strands are also observed in some regions. These small fibres are all oriented parallel to one another but perpendicular to the element main axis. Histological features of the primary bone tissue indicate that the sacral supraspinous rod corresponds to an ossified supraspinous ligament. The formation of this structure appears to have been a non-pathological metaplastic ossification, possibly induced by the continuous tensile forces applied to the element.
Big Cabinets, Big Governments? Grand Coalitions and Public Policy in the German Laender

Abstract The inauguration of Germany's grand coalition of Christian Democrats (CDU/CSU) and the Social Democrats (SPD) raises questions about the public policy performance of a coalition of ideological opposite. This paper turns attention to influence of coalition governments on the size of government in the German Laender from 1992 to 2005. We investigate whether grand coalitions at the sub-national level in Germany systematically affect government spending for education (including cultural affairs) and internal security. The article argues that the effects of grand coalitions on the size of the public sector are moderated by partisan politics but sometimes in unexpected ways. For example, government spending in the field of education is reduced when leftist parties are powerful in the Laender.
Diagnostic accuracy of ten second-generation (human) tissue transglutaminase antibody assays in celiac disease.

BACKGROUND Anti-tissue transglutaminase (tTG) assays that use human tTG as antigen have recently become available. We evaluated commercially available assays with human tTG antigen to estimate their diagnostic accuracies and to determine whether they agree sufficiently to be used interchangeably. METHODS Ten commercially available second-generation anti-tTG assays were evaluated. The following populations were studied: celiac disease (CD) patients at the time of diagnosis without (n = 70) or with (n = 5) IgA deficiency; diseased controls (n = 70); and CD patients without (n = 28) or with (n = 2) IgA deficiency during follow-up. All individuals included in the study underwent intestinal biopsy. Technical performance (linearity, interference, precision, correlation, and agreement) and diagnostic accuracy (sensitivity and specificity) were compared. Anti-gliadin and anti-endomysium antibodies were also measured. RESULTS IgA anti-tTG results correlated well overall, but numerical values differed. Diagnostic sensitivity ranged between 91% and 97% and specificity between 96% and 100%. These were higher than the sensitivity and specificity of the IgA endomysium assay and the IgA gliadin assay. Generally, IgG anti-tTG was less sensitive but more specific than IgG anti-gliadin for the diagnosis of CD in the small group of IgA-deficient patients. CONCLUSIONS Overall diagnostic performance of IgA tTG assays is acceptable and comparable among the different assays, but numerical values differ. Standardization is needed.
Tools for Network Dynamics

Networks have been studied mainly by statistical methods which emphasize their topological structure. Here, one collects some mathematical tools and results which might be useful to study both the dynamics of agents living on the network and the networks themselves as evolving dynamical systems. They include decomposition of differential dynamics, ergodic techniques, estimates of invariant measures, construction of non deterministic automata, logical approaches, etc. A few network examples are discussed as an application of the dynamical tools.
MoviExplain: a recommender system with explanations

Providing justification to a recommendation gives credibility to a recommender system. Some recommender systems (Amazon.com etc.) try to explain their recommendations, in an effort to regain customer acceptance and trust. But their explanations are poor, because they are based solely on rating data, ignoring the content data. Our prototype system MoviExplain is a movie recommender system that provides both accurate and justifiable recommendations.
A separated linear shape and texture space for modeling two-dimensional images of human faces

Human faces differ in shape and texture. This paper describes a representation of grey-level images of human faces based on an automated separation of two-dimensional shape and texture. The separations were done using the point correspondence between the different images, wich was established through algorithms known from optical flow computation. A linear description of the separate texture and shape spaces allows a smooth modeling of human faces. Images of faces along the principal axes of a small set of 50 faces are shown. We also reconstruct images of faces using the 49 remaining faces in our data set. These reconstructions are the projections of an image into the space spanned by the textures and shapes of the other faces.
Variation in the Helical Structure of Native Collagen

The structure of collagen has been a matter of curiosity, investigation, and debate for the better part of a century. There has been a particularly productive period recently, during which much progress has been made in better describing all aspects of collagen structure. However, there remain some questions regarding its helical symmetry and its persistence within the triple-helix. Previous considerations of this symmetry have sometimes confused the picture by not fully recognizing that collagen structure is a highly complex and large hierarchical entity, and this affects and is effected by the super-coiled molecules that make it. Nevertheless, the symmetry question is not trite, but of some significance as it relates to extracellular matrix organization and cellular integration. The correlation between helical structure in the context of the molecular packing arrangement determines which parts of the amino acid sequence of the collagen fibril are buried or accessible to the extracellular matrix or the cell. In this study, we concentrate primarily on the triple-helical structure of fibrillar collagens I and II, the two most predominant types. By comparing X-ray diffraction data collected from type I and type II containing tissues, we point to evidence for a range of triple-helical symmetries being extant in the molecules native environment. The possible significance of helical instability, local helix dissociation and molecular packing of the triple-helices is discussed in the context of collagen's supramolecular organization, all of which must affect the symmetry of the collagen triple-helix.
Parenting Styles,Parenting Locus of Control and Family Function of Children with Oppositional Defiant Disorder

Objective: To investigate the parenting behavior,parenting locus of control and family function of children with oppositional defiant disorder(ODD). Methods: The subjects came from a sample survey of psychiatric disorders for primary and middle school students in six regions in Hunan Province.The Parenting Locus of Control Scale(PLOC) was filled out by parents.The Egna Minnen Betraffande Uppfostran(EMBU) and Family Adaptability and Cohesion Evaluation Scale,the Second Edition(FACESII-CV) were completed by children themselves.Results: The scores of EMBU were all significantly higher in ODD group than in the control,except for the emotional warmth of the father and mother subscales(P0.05);and the scores of the parental efficacy,child control of parents' life and parental control of child's behavior of the PLOC scales were significantly higher in ODD group(P0.01). In addition,there were significant differences of the cohesion now,adaptability now and adaptability desired between the two groups(P0.05). Conclusion: The parents of children with ODD have external PLOC.Their parenting behaviors were inappropriate and the cohesion and adaptability of their family were low.
STAT3 and epithelial–mesenchymal transitions in carcinomas

Cellular programs coupled to cycles of epithelial–mesenchymal transitions (EMTs) play critical roles during embryogenesis, as well as during tissue development, remodeling, and repair. Research over the last decade has established the importance of an ever-expanding list of master EMT transcription factors, whose activity is regulated by STAT3 and function to stimulate the rapid transition of cells between epithelial and mesenchymal phenotypes. Importantly, inappropriate reactivation of embryonic EMT programs in carcinoma cells underlies their metastasis to distant organ sites, as well as their acquisition of stem cell-like and chemoresistant phenotypes operant in eliciting disease recurrence. Thus, targeted inactivation of master EMT transcription factors may offer new inroads to alleviate metastatic disease. Here we review the molecular, cellular, and microenvironmental factors that contribute to the pathophysiological activities of STAT3 during its regulation of EMT programs in human carcinomas.
A Survey of Adaptive Middleware

Developing distributed applications is a difficult task due to three major problems: the complexity of programming interprocess communication, the need to support services across heterogeneous platforms, and the need to adapt to changing conditions. Traditional middleware (such as CORBA, DCOM, and Java RMI) addresses the first two problems to some extent through the use of a “black-box” approach, such as encapsulation in object-oriented programming. However, traditional middleware is limited in its ability to support adaptation. To address all the three problems, adaptive middleware has evolved from traditional middleware. In addition to the object-oriented programming paradigm, adaptive middleware employs several other key technologies including computational reflection, component-based design, aspect-oriented programming, and software design patterns. This survey paper proposes a three-dimensional taxonomy that categorizes different adaptive middleware approaches. Examples of each category are described and compared in detail. Suggestions for future research are also provided.
Reduced sleep quality in healthy girls at risk for depression

Depression is characterized by sleep difficulties, but the extent to which subjective and objective sleep disturbances precede depression are unclear. This study was designed to examine perceptions of sleep quality in addition to actigraphy‐ and diary‐measured sleep variables in healthy girls at low and high familial risk for major depressive disorder. Forty‐four healthy daughters and their mothers completed a week of daily sleep diary and actigraphy; 24 girls had mothers with no history of psychopathology (low risk, mean age 14.92 years), and 20 girls had mothers with recurrent depression during the daughter’s lifetime (high risk, mean age 14.12 years). All daughters had no current or past psychopathology. High‐risk girls reported significantly poorer subjective sleep quality than did low‐risk girls (P = 0.001). The two groups of participants did not differ in actigraphy‐ or diary‐measured sleep duration, onset latency or snooze duration. Healthy girls at high familial risk for depression report poorer sleep quality than do girls at low risk for depression, despite the absence of group differences in objective sleep disturbances as measured by actigraphy or daily diary. This pattern of findings may reflect a broader cognitive or physiological phenotype of risk for depression.
Logical De nability of Counting

The relationship between counting functions and logical expressibility is explored. The most well studied class of counting functions is #P, which consists of the functions counting the accepting computation paths of a nondeterministic polynomial-time Turing machine. For a logic L, #L is the class of functions on nite structures counting the tuples (T ; c) satisfying a given formula (T ; c) in L. Saluja, Subrahmanyam, and Thakur showed that on classes of ordered structures #FO = #P (where FO denotes rst-order logic) and that every function in ## 1 has a fully polynomial randomized approximation scheme. We give a probabilistic criterion for membership in ## 1. A consequence is that functions counting the number of cliques, the number of Hamilton cycles, and the number of pairs with distance greater than two in a graph, are not contained in ## 1. It is shown that on ordered structures ## 1 1 captures the previously studied class spanP. On unordered structures #FO is a proper subclass of #P and ## 1 1 is a proper subclass of spanP; in fact, no class #L contains all polynomial-time computable functions on unordered structures. However, it is shown that on unordered structures every function in #P is identical almost everywhere with some function #FO, and similarly for ## 1 1 and spanP. Finally, we discuss the closure properties of #FO under arithmetical operations.