Miracle-dz/UniFAR-FTUs huggingface dataset:
A Guide to the Modal Logics of Knowledge and Belief: Preliminary Draft

We review and re-examine possible-worlds semantics for propositional logics of knowledge and belief with four particular points of emphasis: (1) we show how general techniques for finding decision procedures and complete axiomatizations apply to models for knowledge and belief, (2) we show how sensitive the difficulty of the decision procedure is to such issues as the choice of modal operators and the axiom system, (3) we discuss how notions of common knowledge and implicit knowledge among a group of agents fit into the possible-worlds framework, and (4) we consider to what extent the possible-worlds approach is a viable one for modelling knowledge and belief. As far as complexity is concerned, we show among other results that while the problem of deciding satisfiability of an S5 formula with one knower is NP-complete, the problem for many knowers is PSPACE-complete. Adding an implicit knowledge operator does not change the complexity substantially, but once a common knowledge operator is added to the language, the problem becomes complete for exponential time.
The Detection of Multimodal Oscillations onUMa

We have used the star camera on the WIRE satellite to observe the K0 III star � UMa, and we report the apparent detection of 10 oscillation modes. The lowest frequency mode is at 1.82 µHz, and appears to be the fundamental mode. The mean spacing between the mode frequencies is 2.94 µHz, which implies that all detected modes are radial. The mode frequencies are consistent with the physical parameters of a K0 III star, if we assume that only radial modes are excited. Mode amplitudes are 100 − 400 µmag, which is consistent with the scaling relation of Kjeldsen & Bedding (1995).
Bending or Breaking: Appropriating edTPA Policy in Special Education Teacher Education

The Teacher Performance Assessment (edTPA) has been widely adopted in schools of higher education across the United States. Different state education departments have set policies, to varying degrees, that determine the outcomes for passing the edTPA, with some requiring a passing score to obtain licensure. As a result of the high-stakes nature of the edTPA, teacher education programs are taking steps to support teacher candidates as they navigate this process. The adoption of edTPA, however, is not without obstacles and has become complicated in the process of implementation. The purpose of this study is to report on a policy analysis of the edTPA in special education using a Critical Practice Approach. Researchers sought to find answers to the following questions: (a) What were the negotiations, decisions, and actions taken by special education teacher education programs in their efforts to appropriate the edTPA policy? and (b) To what extent did the appropriation process foster or empower “participation agency in the democratic production of policy? ” Data were collected through in-depth phenomenological interviews with special education teacher educators in three different institutions. Findings suggest that teacher educators at each institution engaged in three general types of appropriation activities that were central to their efforts; embedding, co-opting, and reifying. This critical practical policy analysis helped to identify ways in which the edTPA policy appropriation process was and was not democratic and participatory; a process that recognizes contributions, expertise, and experience of local appropriators as well as factors that characterize the local context.
Diversity Analysis in CDMA Based Broadband Wireless System

This proposed study exploits transmit and receive diversity to mitigate multipath propagation and interference in CDMA system which is characterized by multipath interference. Code Division Multiple Access (CDMA) is the vital technology for modern wireless communication systems to share the available finite amount of radio bandwidth expeditiously. The CDMA system has soft capacity which polishes off the problem of limitation on the number of users in a system. In this paper the simulated results of CDMA system deployed with transmit diversity using Alamouti code and receiver diversity with Maximum Ratio Combining (MRC) technique are presented. The proposed system optimizes the effect of multipath propagation and concludes the way to improve BER.
Enhancing OSGi with Asynchronous Messaging

OSGi is a Java-based framework intended for embedded systems. In this paper, we design, implement, evaluate and demonstrate an approach to enhancing OSGi with asynchronous messaging. Our approach is non-invasive. It guarantees reliable delivery of messages. Furthermore, our approach enables a remote asynchronous communication not only between OSGi containers but also between an OSGi container and a foreign system.
Code 5-6: An Efficient MDS Array Coding Scheme to Accelerate Online RAID Level Migration

With the rapid growth of data storage, the demand for high reliability becomes critical in large data centers where RAID-5 is widely used. However, the disk failure rate increases sharply after some usage, and thus concurrent disk failures are not rare, therefore RAID-5 is insufficient to provide high reliability. A solution is to convert an existing RAID-5 to a RAID-6 (a type of "RAID level migration") to tolerate more concurrent disk failures via erasure codes, but existing approaches involve complex conversion process and high transformation cost. To address these challenges, we propose a novel MDS code, called "Code 5-6", to combine a new dedicated parity column with the original RAID-5 layout. Code 5-6 not only accelerates online conversion from a RAID-5 to a RAID-6, but also demonstrates several optimal properties of MDS codes. Our mathematical analysis shows that, compared to existing MDS codes, Code 5-6 reduces new parities, decreases the total I/O operations, and speeds up the conversion process by up to 80%, 48.5%, and 3.38×, respectively.
A multiple device approach for supporting whiteboard-based interactions

In this paper, we propose a multiple-device approach for supporting informal meetings using a digital whiteboard. Traditional digital whiteboard systems often suffer from a limited capability to enter text and the handling of existing data. The large display surface of the whiteboard also makes traditional GUI design ineffective. Our proposed approach provides a hand-held computer for each participant which serves as a tool palette and data entry palette for the whiteboard. Just as an oil painter effectively uses a palette in his/her hand, this hand-held device offers an easy way to create a new text/stroke object, to select existing data from a network, to select pen attributes, and to control the whiteboard application. This paper also reports our experience with the digital whiteboard systems using a proposed multi-device architecture.
Resolving multi objective stock portfolio optimization problem using genetic algorithm

Portfolio optimization is an important research field in modern finance. The most important characteristic within this optimization problem is the risk and the returns. Modern portfolio theory provides a well-developed paradigm to form a portfolio with the highest expected return for a given level of risk tolerance. Multi objective portfolio optimization problem is the portfolio selection process that result highest expected return and smallest identified risk among the various financial assets.
A Decision Support System for CoA Selection

A Decision Support System (DSS) prototype was implemented to assist the staff of an Air Operations Centre (AOC) in dealing with events of counter-drug operations. This prototype, called Commander's Advisory System for Airspace Protection (CASAP), aims to help the AOC staff to describe and share information about events, to develop pertinent courses of action (CoAs), to evaluate these CoAs and to determine which one is the most appropriate. CASAP is based on an investigation of the AOC Command and Control related activities, particularly CoAs evaluation and selection processes. Within CASAP, the CoAs evaluations and ranking are performed according to a Multiple Criteria Decision Analysis framework. CASAP provides a series of structured tools to analyse the proposed CoAs prioritisation. Based on CASAP experience, this paper identifies a set of facilities that would be needed by a generic DSS for CoA selection.
Kalman filtering for compressed sensing

Compressed sensing is a new emerging field dealing with the reconstruction of a sparse or, more precisely, a compressed representation of a signal from a relatively small number of observations, typically less than the signal dimension. In our previous work we have shown how the Kalman filter can be naturally applied for obtaining an approximate Bayesian solution for the compressed sensing problem. The resulting algorithm, which was termed CSKF, relies on a pseudo-measurement technique for enforcing the sparseness constraint. Our approach raises two concerns which are addressed in this paper. The first one refers to the validity of our approximation technique. In this regard, we provide a rigorous treatment of the CSKF algorithm which is concluded with an upper bound on the discrepancy between the exact (in the Bayesian sense) and the approximate solutions. The second concern refers to the computational overhead associated with the CSKF in large scale settings. This problem is alleviated here using an efficient measurement update scheme based on Krylov subspace method.
Virological and Serological Findings in Rousettus aegyptiacus Experimentally Inoculated with Vero Cells-Adapted Hogan Strain of Marburg Virus

The Egyptian fruit bat, Rousettus aegyptiacus, is currently regarded as a potential reservoir host for Marburg virus (MARV). However, the modes of transmission, the level of viral replication, tissue tropism and viral shedding pattern remains to be described. Captive-bred R. aegyptiacus, including adult males, females and pups were exposed to MARV by different inoculation routes. Blood, tissues, feces and urine from 9 bats inoculated by combination of nasal and oral routes were all negative for the virus and ELISA IgG antibody could not be demonstrated for up to 21 days post inoculation (p.i.). In 21 bats inoculated by a combination of intraperitoneal/subcutaneous route, viremia and the presence of MARV in different tissues was detected on days 2–9 p.i. , and IgG antibody on days 9–21 p.i. In 3 bats inoculated subcutaneously, viremia was detected on days 5 and 8 (termination of experiment), with virus isolation from different organs. MARV could not be detected in urine, feces or oral swabs in any of the 3 experimental groups. However, it was detected in tissues which might contribute to horizontal or vertical transmission, e.g. lung, intestines, kidney, bladder, salivary glands, and female reproductive tract. Viremia lasting at least 5 days could also facilitate MARV mechanical transmission by blood sucking arthropods and infections of susceptible vertebrate hosts by direct contact with infected blood. All bats were clinically normal and no gross pathology was identified on post mortem examination. This work confirms the susceptibility of R. aegyptiacus to infection with MARV irrespective of sex and age and contributes to establishing a bat-filovirus experimental model. Further studies are required to uncover the mode of MARV transmission, and to investigate the putative role of R. aegyptiacus as a reservoir host.
Second order numerical solution for optimal control of monodomain model in cardiac electrophysiology.

In this article, second order numerical methods for optimal control of the mon- odomain equations in cardiac electrophysiology are presented. The mono- and bidomain equations are well established as a major building block for describing the the wave propagation of the action potential in the human heart. The mathematical model equations consist of a non-linear parabolic partial differential equation of reaction-diffusion type, coupled with ordinary differential equations describing the interaction with the ionic current variables. Optimal control problems suggest them- selves quite naturally for this important class of modeling problems. Specifically we present an optimal control formulation for the monodomain equations with an extra-cellular current as the con- trol variable which must be determined in such a way that excitations of the transmembrane voltage are damped in an optimal manner. A nonlinear conjugate gradient method and a Newton method are compared for solving the optimization problem.
Efficiently Computing Exact Geodesic Loops within Finite Steps

Closed geodesics, or geodesic loops, are crucial to the study of differential topology and differential geometry. Although the existence and properties of closed geodesics on smooth surfaces have been widely studied in mathematics community, relatively little progress has been made on how to compute them on polygonal surfaces. Most existing algorithms simply consider the mesh as a graph and so the resultant loops are restricted only on mesh edges, which are far from the actual geodesics. This paper is the first to prove the existence and uniqueness of geodesic loop restricted on a closed face sequence; it contributes also with an efficient algorithm to iteratively evolve an initial closed path on a given mesh into an exact geodesic loop within finite steps. Our proposed algorithm takes only an O(k) space complexity and an O(mk) time complexity (experimentally), where m is the number of vertices in the region bounded by the initial loop and the resultant geodesic loop, and k is the average number of edges in the edge sequences that the evolving loop passes through. In contrast to the existing geodesic curvature flow methods which compute an approximate geodesic loop within a predefined threshold, our method is exact and can apply directly to triangular meshes without needing to solve any differential equation with a numerical solver; it can run at interactive speed, e.g., in the order of milliseconds, for a mesh with around 50K vertices, and hence, significantly outperforms existing algorithms. Actually, our algorithm could run at interactive speed even for larger meshes. Besides the complexity of the input mesh, the geometric shape could also affect the number of evolving steps, i.e., the performance. We motivate our algorithm with an interactive shape segmentation example shown later in the paper.
Silencing-associated and meiosis-specific small RNA pathways in Paramecium tetraurelia

Distinct small RNA pathways are involved in the two types of homology-dependent effects described in Paramecium tetraurelia, as shown by a functional analysis of Dicer and Dicer-like genes and by the sequencing of small RNAs. The siRNAs that mediate post-transcriptional gene silencing when cells are fed with double-stranded RNA (dsRNA) were found to comprise two subclasses. DCR1-dependent cleavage of the inducing dsRNA generates ∼23-nt primary siRNAs from both strands, while a different subclass of ∼24-nt RNAs, characterized by a short untemplated poly-A tail, is strictly antisense to the targeted mRNA, suggestive of secondary siRNAs that depend on an RNA-dependent RNA polymerase. An entirely distinct pathway is responsible for homology-dependent regulation of developmental genome rearrangements after sexual reproduction. During early meiosis, the DCL2 and DCL3 genes are required for the production of a highly complex population of ∼25-nt scnRNAs from all types of germline sequences, including both strands of exons, introns, intergenic regions, transposons and Internal Eliminated Sequences. A prominent 5′-UNG signature, and a minor fraction showing the complementary signature at positions 21–23, indicate that scnRNAs are cleaved from dsRNA precursors as duplexes with 2-nt 3′ overhangs at both ends, followed by preferential stabilization of the 5′-UNG strand.
Mesh Moving Techniques for Fluid-Structure Interactions With Large Displacements

In computation of fluid-structure interactions, we use mesh update methods consisting of mesh-moving and remeshing-as-needed. When the geometries lire complex and the structural displacements are large, it becomes even more important that the mesh moving techniques lire designed with the objective to reduce the frequency of remeshing. To that end, we present here mesh moving techniques where the motion of the nodes is governed by the equations of elasticity, with selective treatment of mesh deformation based on element sizes as well as deformation modes in terms of shape and volume changes. We also present results from application of these techniques to a set of two-dimensional test cases.
A Tibetan web Text Clustering model

In this paper we design and implement a Tibetan Topic Detection system to process the huge number of Tibetan language text on Web. It classifies the Tibetan text into several categories, performs clustering in each category to get the topic. According to the Tibetan grammar features, we give a Tibetan text clustering model TTCM (Tibetan Text Clustering Model) for the text from Internet news sites. We have studied the Feature representation, feature extraction, and clustering in the model separately. From the performed tests, It turns out that the text Clustering in this model has a good accuracy ratio and a good recall ratio. So it has high application value.
The Effect of Healthy Food Knowledge on Perceived Healthy Foods’ Value, Degree of Satisfaction, and Behavioral Intention: The Moderating Effect of Gender

ABSTRACT This study seeks to determine how knowledge about healthy food impacts its perceived value, satisfaction, and behavioral intention among college students to access healthy foods, and to investigate the moderating effect of gender on the formulated relationships. The results show that knowledge about healthy food positively influences perceived value and behavioral intentions, and perceived value is a significant predictor of satisfaction and behavioral intentions toward healthy foods. In addition, knowledge about healthy food does not significantly influence on satisfaction in this study. The results regarding the moderating effects of gender show that gender only moderates the relationship between satisfaction and behavioral intentions toward healthy foods. These results offer useful information for foodservice companies and educational institutions; more specifically, for gaining a better understanding of college students’ behaviors and perceptions toward healthy foods and developing marketing strategies accordingly.
CHIMERA TYPE DOMAIN DECOMPOSITION METHODS APPLIED TO FRACTIONAL STEP FINITE ELEMENT SCHEMES FOR INCOMPRESSIBLE FLOWS

In this paper, some ideas for solving Navier-Stokes equations using fractional step techniques in combination with domain decomposition methods are introduced. Apart from its traditional use in a rational distribution of the computational work, the domain decomposition (DD) method can be a powerful tool when dealing with complex geometries, which can have moving parts. The CBS (Characteristic Based Split) general algorithm is here used to numerically solve the flow equations in each of the subdomains. It pro- vides the required flexibility for dealing equally well with a broad range of flow regimes: incompressible and compressible, viscous and inviscid, laminar and turbulent, stationary and transient ones. As the same fluid dynamic algorithm is used for solving all these problems, the combined DD + CBS ideas inherite the fluid algorithm flexibility. A special set of transmision conditions for the subdomains and a new conservative interpolation are among the features introduced. In this work, the main ideas are set and some simple laminar incompressible problems are tackled.
The potential of spatialised audio for location based services on mobile devices: Mediascapes

This position paper describes how spatialised sound can be used to guide users in Location Based Services (LBS) and poses future work not only on how spatialised audio can be advanced for mobile devices by discussing the effect it can have on the experience of the user and the author, for such things as immersion and 3D authoring. It also goes on to hypothesize how human visual cues might be used to potentially minimise the effect of GPS spatialised audio errors to the user’s experience.
Results of a Kakapo Search in Southern Stewart Island, December 1984-march 1985

A search of much of southern Stewart Island was made in December 1984-March 1985, principally to locate kakapo feeding sign and track-and-bowl systems, and to listen for booming male kakapo. In addition, a general survey was carried out for birds and lizards in the 222 one thousand metre grid squares visited. Evidence was found of 25 adult male kakapo, and it was determined that the kakapo population on Stewart Island numbered 45 birds (25 male, 16 female, 4 immatures). Kakapo were distributed east and west of the Tin Range. On the western side sign was found from the Basin Creek catchment north to Deceit Peaks; while east of the range kakapo distribution extended northeast of the central study area to Kirklands Hill and the Toitoi River. In addition, a few birds were probably living on and about Mt Rakeahua. Forty-three bird species were encountered during the survey. In descending order of percentage occurrence in the grid squares, the bellbird, Stewart Island brown kiwi, yellow-breasted tit and redpoll were the species most frequently found. Two species of lizard were captured including three specimens of the harlequin gecko within its previously recorded range. A third species was tentatively identified from sightings.
Application-specific visual quality assessment: current status and future trends

Visual quality assessment (VQA) has been widely investigated during the past decades. With emerging visual content from various specific multimedia applications, there have been many new VQA metrics proposed in the research community. This paper introduces different types of VQA metrics for specific applications and then describes the future trends of VQA for specific applications. It intends to provide some ideas on the potential research topics of VQA for the research community.
A Voronoi-Trajectory Based Hybrid Routing (VTBR) Algorithm for Wireless Ad Hoc Networks with Obstacles

Position based routing methods can construct effective routes; however, in some topologies with obstacles, such algorithms may end in failure. In order to avoid stationary obstacles, this paper presents a Voronoi-trajectory based hybrid routing (VTBR) algorithm that combines both proactive and reactive routing strategies to provide high routing performance. If the destination node is within the source node’s two-hop range, then the source will consult the routing table to determine the route. When the destination is beyond that range, the source establishes a trajectory which is the set of points of the shortest obstacle-avoiding path. The intermediate nodes take the forwarding decision based on the relationship to the trajectory. Eventually, an example and simulation experiments are conducted to validate and evaluate the performance of VTBR. Our simulation results show that the proposed algorithm makes it possible to successfully construct the routes.