Miracle-dz/UniFAR-FTUs huggingface dataset:
Attractors for a Lattice Dynamical System Generated by Non-Newtonian fluids Modeling Suspensions

In this paper we consider a lattice dynamical system generated by a parabolic equation modeling suspension flows. We prove the existence of a global compact connected attractor for this system and the upper semicontinuity of this attractor with respect to finite-dimensional approximations. Also, we obtain a sequence of approximating discrete dynamical systems by the implementation of the implicit Euler method, proving the existence and the upper semicontinuous convergence of their global attractors.
An Intelligent Course Recommendation System

Previous academic administration management systems had migrated from wired to wireless technology but were restricted to specific equipment, as such systems were not based on industry standards. The course recommendation system plays a significant role in managing the curriculum and counseling students on academic matters, with a view to fostering their academic progress. However, the system does not have the time to advise individual students on the details of which fields and courses they should pursue. The rapid progress of IT technologies has enabled users to access ? any service, anytime, anywhere? , and wireless internet services have enabled users to access internet services even while traveling. Cellular phones have evolved to smart phones, which can provide visual telephone service, DMB service, and act as smartphones. Users can access service categories that offer new possibilities and are accessed and used in ways different from traditional services. Thus, cellular phones are a representative terminal for ubiquitous learning. This paper proposes a mobile course recommendation system to help students choose and access courses necessary for their major fields of study. When students apply to take courses, the proposed system recommends the most suitable ones, using an inference engine that considers not only course sequences but also students? information. The system is able to assist the course coordinator in counseling students. The students use their personal cellular phones to track their courses and receive course recommendations from the system. We searched for relationships between subjects, using association rules, by mining data about the courses already taken by students, and compared these to existing course trees. This information could be used for updating course trees.
Changing pattern of gene expression is associated with ventricular myocyte dysfunction and altered mechanisms of Ca2+ signalling in young type 2 Zucker diabetic fatty rat heart

The association between type 2 diabetes and obesity is very strong, and cardiovascular complications are the major cause of morbidity and mortality in diabetic patients. The aim of this study was to investigate early changes in the pattern of genes encoding cardiac muscle regulatory proteins and associated changes in ventricular myocyte contraction and Ca2+ transport in young (9‐ to 13‐week‐old) type 2 Zucker diabetic fatty (ZDF) rats. The amplitude of myocyte shortening was unaltered; however, time‐to‐peak shortening and time to half‐relaxation of shortening were prolonged in ZDF myocytes (163 ± 5 and 127 ± 7 ms, respectively) compared with age‐matched control rats (136 ± 5 and 103 ± 4 ms, respectively). The amplitude of the Ca2+ transient was unaltered; however, time‐to‐peak Ca2+ transient was prolonged in ZDF myocytes (66.9 ± 2.6 ms) compared with control myocytes (57.6 ± 2.3 ms). The L‐type Ca2+ current was reduced, and inactivation was prolonged over a range of test potentials in ZDF myocytes. At 0 mV, the density of L‐type Ca2+ current was 1.19 ± 0.28 pA pF−1 in ZDF myocytes compared with 2.42 ± 0.40 pA pF−1 in control myocytes. Sarcoplasmic reticulum Ca2+ content, release and uptake and myofilament sensitivity to Ca2+ were unaltered in ZDF myocytes compared with control myocytes. Expression of genes encoding various L‐type Ca2+ channel proteins (Cacna1c, Cacna1g, Cacna1h and Cacna2d1) and cardiac muscle proteins (Myh7) were upregulated, and genes encoding intracellular Ca2+ transport regulatory proteins (Atp2a2 and Calm1) and some cardiac muscle proteins (Myh6, Myl2, Actc1, Tnni3, Tnn2, and Tnnc1) were downregulated in ZDF heart compared with control heart. A change in the expression of genes encoding myosin heavy chain and L‐type Ca2+ channel proteins might partly underlie alterations in the time course of contraction and Ca2+ transients in ventricular myocytes from ZDF rats.
Fat quantification with IDEAL gradient echo imaging: Correction of bias from T1 and noise

Quantification of hepatic steatosis is a significant unmet need for the diagnosis and treatment of patients with nonalcoholic fatty liver disease (NAFLD). MRI is capable of separating water and fat signals in order to quantify fatty infiltration of the liver (hepatic steatosis). Unfortunately, fat signal has confounding T1 effects and the nonzero mean noise in low signal‐to‐noise ratio (SNR) magnitude images can lead to incorrect estimation of the true lipid percentage. In this study, the effects of bias from T1 effects and image noise were investigated. An oil/water phantom with volume fat‐fractions ranging linearly from 0% to 100% was designed and validated using a spoiled gradient echo (SPGR) sequence in combination with a chemical‐shift based fat‐water separation method known as iterative decomposition of water and fat with echo asymmetry and least squares estimation (IDEAL). We demonstrated two approaches to reduce the effects of T1: small flip angle (flip angle) and dual flip angle methods. Both methods were shown to effectively minimize deviation of the measured fat‐fraction from its true value. We also demonstrated two methods to reduce noise bias: magnitude discrimination and phase‐constrained reconstruction. Both methods were shown to reduce this noise bias effectively from 15% to less than 1%. Magn Reson Med 58:354–364, 2007. © 2007 Wiley‐Liss, Inc.
Modeling the mechanical properties of biopolymers for automotive applications

The automotive industry is constantly looking for alternative solutions to reduce manufacturing cost and use renewable materials. Implementing agro-fibres as polymer fillers in thermoplastic matrix will satisfy the automotive criteria without sacrificing the mechanical properties currently set by the conventional fillers such as glass fibre, talc, or mica. This paper proposes the use of wheat straw as filler in polypropylene for automotive industry and investigates models for determining compositions of the materials to correspond to mechanical properties. Data collection is performed by varying weight percentages of wheat straw and polypropylene to create the biocomposites through an extrusion process. The end products are molded into proper shapes for mechanical testing. Different modeling approaches that include polynomial regression, artificial neural networks and support vector machines are investigated to prepare predictive models for the biocomposite properties. A comparison between the methods shows that support vector machines produced the best model, followed by artificial neural networks, and then polynomial regression.
Reexamining Critical Success Factors for Enterprise System Adoption in Transition Economies: Learning from Polish Adopters

This study's goal is to investigate and better understand critical success factors (CSFs) for enterprise system (ES) adoption in transition economies. The research setting embraces ES adoptions conducted in Poland, a transition economy from Central and Eastern Europe. On the basis of research conducted among 144 ES adopters, an analysis based on grounded theory revealed 20 CSFs grouped into 4 categories. Next, a stakeholder analysis of the discovered CSFs has been performed. The achieved results were compared with the findings of prior research conducted in developed and developing economies. The main results imply that the most important CSFs for ES adoption in Poland are connected with people playing varied roles in the implementation project. The findings also suggest that people-related considerations will replace finance- and IT-related issues in the future. Other hypothesized trends include a growing importance of tangible benefits and organizational changes in transition economies.
The spatial side of somatoparaphrenia: a case study

Abstract The perception of the bodily self in space is a composite cognitive function requiring a dynamic integrated brain mechanism. Somatoparaphrenia (SP), a delusional belief concerning the experienced disownership for the contralesional paralyzed arm, represents the disruption of such mechanism. In two experiments, we have investigated the alteration of limb disownership after spatial manipulations in a right-brain-damaged patient affected by chronic SP. In experiment 1 the patient’s spatial attention was switched between the left and right sides of space. SP signs worsened when the patient was interviewed from the left compared to the right bedside. In the second experiment we showed the first systematic transient remission of SP using left caloric vestibular stimulation (CVS), a physiologic manipulation mainly acting on the spatial frame of reference. Taken together, these results shed further light on the spatial nuance of SP and on the importance of vestibular signals for the generation of a coherent body representation. Furthermore, our case study demonstrated the possibility of eliciting more severe SP signs if the patient is interviewed from the left bedside. Additionally, CVS applications may have an important impact on the rehabilitation of these symptoms.
Bis(azido-κN)(di-2-pyridylamine-κ2 N 2,N 2′)palladium(II)

In the title complex, [Pd(N3)2(C10H9N3)], the PdII ion is in a slightly distorted square-planar coordination environment. The ligator atoms comprise the two pyridine N atoms of the chelating di-2-pyridylamine (dpa) ligand and two N atoms from two azide anions. The dpa ligand coordinates the Pd atom in a boat conformation, the dihedral angle between the pyridine rings being 24.4 (1)°. The pyridine rings are somewhat inclined to the least-squares plane of the PdN4 unit, making dihedral angles of 29.02 (9) and 26.47 (9)°. The azide ligands are slightly bent, with N—N—N angles of 173.0 (4) and 174.2 (4)°. In the crystal, molecules are connected by N—H⋯N and C—H⋯N hydrogen bonds, forming chains along the c axis. When viewed down the b axis, successive chains are stacked in opposite directions. Intramolecular C—H⋯N hydrogen bonds are also observed.
Wrongfully right : applications of semantic figurative metaphors   in information visualization

Semantic figurative metaphors modify visualization models and add non-data visual cues to visualizations. They result from an authorial intent to transmit stronger messages and emotionally connect with broad audiences. This article describes how I make use of semantic figurative metaphors across three applications, discussing design decisions and the limitations of this approach.
The action of carbon dioxide on isolated perfused dog lungs.

1. Isolated dog lungs under negative or positive pressure ventilation have been perfused with blood through the pulmonary artery at constant volume inflow. The response of the pulmonary vessels to various concentrations of CO2 in the ventilating gas has been observed. 2. The capacity of the pulmonary blood-vessels is markedly diminished by increasing the concentration of CO2 inhaled from the small percentage present in atmospheric air to 5 or 10 per cent. , and the pulmonary arterial pressure frequently shows a 5 to 20 per cent. increase. 3. The lung blood-volume shows an inverse relationship to the CO2 content of the arterial blood. 4. The effect of adrenaline on the pulmonary vessels is not altered during ventilation of the lungs with 5 per cent. CO2 in air. 5. The response to CO2 is not inhibited by ergotoxine or by atropine. 6. The possible site of action of CO2 is discussed.
Optimization of extraction of phenolic antioxidants from tea (Camellia sinensis L.) fruit peel biomass using response surface methodology.

Tea (Camellia sinensis L.) fruit peel, the main byproduct during the manufacture of tea seed oil, was used as raw material for the recovery of phenolic antioxidants. The effect of ethanol concentration, extraction time, and extraction temperature on total phenolic content (TPC) and ferric-reducing antioxidant power (FRAP) of the extracts from tea fruit peel was investigated. The maximum predicted TPC (47.5 mg GAE/g dry peel) was obtained under the optimum recovery conditions (43% ethanol, 60°C, and 33 min) given by using response surface methodology (RSM). A high correlation (R2 = 0.929, p < 0.01) between TPC and FRAP value was identified by linear regression analysis. Furthermore, gallocatechin (GC) and epigallocatechin (EGC) were found to be the major individual catechins in the extracts from tea fruit peel. Ethanol/aqueous extraction has been presented as an effective method for the recovery of phenolic antioxidants from tea fruit peel.
Exploitation and Detection of a Malicious Mobile Application

Mobile devices are increasingly being embraced by both organizations and individuals in today’s society. Specifically, Android devices have been the prominent mobile device OS for several years. This continued amalgamation creates an environment that is an attractive attack target. The heightened integration of these devices prompts an investigation into the viability of maintaining non-compromised devices. Hence, this research presents a preliminary investigation into the effectiveness of current commercial anti-virus, static code analysis and dynamic code analysis engines in detecting unknown repackaged malware piggybacking on popular applications with excessive permissions. The contribution of this paper is two-fold. First, it provides an initial assessment of the effectiveness of anti-virus and analysis tools in detecting malicious applications and behavior in Android devices. Secondly, it provides process for inserting code injection attacks to stimulate a zero-day repackaged malware that can be used in future research efforts.
Dynamic contact force/torque observer: Sensor fusion for improved interaction control

The potential areas of application for robots have gradually extended beyond the classical industrial settings in large-scale enterprizes: nowadays, the integration of robots into daily life has become a central development in robotics. Here, one major challenge is the physical interaction with unknown and/or changing environments. Such an interaction requires knowledge of the exchanged contact forces and torques. To this end, robotic systems are typically equipped with force/torque sensors at the wrist. By using force control schemes that rely on measurements from these sensors, conventional manipulation tasks are successfully executed. In particular, for dynamic manipulation tasks, however, the problem arises that the inertial forces/torques of the end effector have a non-negligible effect on the measurements of the wrist sensor. This degrades the performance of the interaction control and constitutes a safety risk since the actual interaction forces/torques deviate from the desired values. As a solution to this problem, the paper discusses four contact force/torque observer designs: two approaches are based on the extended Kalman filter (EKF) and two approaches are based on the unscented Kalman filter (UKF). For both types, EKF and UKF, two different measurement vectors are considered: the first one only uses pose and force/torque measurements, whereas the second one also uses acceleration measurements to determine the contact forces and torques. The four observer designs are evaluated in simulation and experiment for six-degree-of-freedom (DOF) tasks.
Semantic process benchmarking to improve process performance

Purpose – The purpose of this paper is to illustrate and evaluate the semantic process benchmarking concept.Design/methodology/approach – The authors' approach includes the use of metamodels and ontologies, which make the process models syntactically and semantically comparable. Furthermore, a software prototype is presented to analyze and compare individual process models and their performance information. Thereafter, the technical, conceptual, and economic perspectives of the approach's evaluation are aligned with their respective outcomes.Findings – The evaluation proves that this approach is generally suitable to generate novel and useful information on different process models and their performance within the same problem domain. However, the initial set‐up costs are high and will only pay off once process models are used regularly.Practical implications – The proposed approach depends strongly on the availability of appropriate metrics and ontologies, as well as on the annotation of these ontologies.
Ontology-based artefact management in automotive electronics

The current paper presents work in progress in integrated management of artefacts inautomotive electronics with a focus on requirements. A case study on industrial requirements management was performed in a Swedish automotive supplier of software-intensive systems. Based on this case study, a frame concept for integrated model management is proposed. One core element in implementing the frame concept is an ontology-based domain repository. Concepts, architecture and realization of a domain-repository are introduced. The domain repository is based on RDF, RDFS and TRIPLE and includes extensions supporting navigation in the artefact net and derivation of new knowledge: modlets, actlets and spot views.
Business services and the changing structure of European economic growth

A pervasive trend that characterised the past two decades of European economic growth is that the share in the economy of commercial services, and particularly business services, grows monotonically, and this mainly to the expensive of the manufacturing sector. The structural shift reflects a changing and increasingly complex social division of labour between economic sectors. The fabric of inter-industry relations is being woven in a new way due to the growing specialisation in knowledge services, the exploitation of scale economies for human capital, lowered costs of outsourcing in-house services, and the growing encapsulation of manufacturing products in a 'service jacket'. Business services, which inter alia includes the software industry and other knowledge-intensive business services (KIBS), play a key role in many of these processes. We argue that in recent decades business services contributed heavily to European economic growth, in terms of employment, productivity and innovation. A direct growth contribution stems from the business-services sector's own remarkably fast growth, while an indirect growth contribution was caused by the positive knowledge and productivity spill-overs from business services to other industries. The spill-overs come in three forms: from original innovations, from speeding up knowledge diffusion, and from the reduction of human capital indivisibilities at firm level. The external supply of knowledge and skill inputs exploits positive external scale economies and reduces reduces the role of internal (firm-level) scale (dis)economies associated with these inputs. The relatively low productivity growth that characterises some business-services sectors may be a drag on the sector's direct contribution to overall economic growth. The paper argues that there is no reason to expect a "Baumol disease" effect as long as the productivity and growth spill-overs from KIBS to other economic sectors are large enough. Finally, the paper concludes by pinpointing some policy 'handles' that could be instrumental in boosting the future contibution of business services to overall European economic growth.
A STUDY OF NEGOTIATIONS WITHIN THE ETHNIC CHINESE COMMUNITY BETWEEN TAIWAN AND HONG KONG

Negotiation is a fundamental process of business activity. As the world becomes more globalized and international business negotiation becomes more frequent, the importance of culture in negotiation becomes more and more salient. The majority of previous negotiation research has been conducted in either a western or an east vs. west environment, leading us to wonder if the findings of these studies are applicable in other cross-cultural contexts. This study uses the dual concern model presented by Blake and Mouton (1985) to understand what drives negotiation strategy selection in two similar cultures (Taiwan and Hong Kong). The result of statistical analysis confirm significant differences in negotiation strategies between the countries: subjects in Hong Kong are more inclined to employ integration negotiation strategies while Taiwanese subjects employ more competitive strategies.
The use of amphotericin B in man.

Amphotericin B is the only broad-spectrum antifungal agent currently available for the treatment of systemic mycotic infections in man. Administered intravenously, it has been effective in the treatment of patients with histoplasmosis, North American blastomycosis, coccidiomycosis, cryptococcosis, and specific Candida infections. In addition, isolated cases of South American blastomycosis, aspergillosis, sporotrichosis, mucormycosis, and chromoblastomycosis have responded favorably. Intrathecal administration is frequently indicated in systemic fungal infections involving the central nervous system. The reversible side effects of chills, fever, nausea, vomiting, hypokalemia, anemia, and azotemia warrant necessary precautions during the administration of this agent. Simple safeguards can effectively control these manifestations and so enhance the usefulness of this potent antifungal antibiotic when used via the intravenous and intrathecal routes.
A New Foundation for Finitary Corecursion

This paper contributes to a theory of the behaviour of "finite-state" systems that is generic in the system type. We propose that such systems are modeled as coalgebras with a finitely generated carrier for an endofunctor on a locally finitely presentable category. Their behaviour gives rise to a new fixpoint of the coalgebraic type functor called locally finite fixpoint (LFF). We prove that if the given endofunctor preserves monomorphisms then the LFF always exists and is a subcoalgebra of the final coalgebra (unlike the rational fixpoint previously studied by Adamek, Milius and Velebil). Moreover, we show that the LFF is characterized by two universal properties: 1. as the final locally finitely generated coalgebra, and 2. as the initial fg-iterative algebra. As instances of the LFF we first obtain the known instances of the rational fixpoint, e.g. regular languages, rational streams and formal power-series, regular trees etc. And we obtain a number of new examples, e.g. (realtime deterministic resp. non-deterministic) context-free languages, constructively S-algebraic formal power-series (and any other instance of the generalized powerset construction by Silva, Bonchi, Bonsangue, and Rutten) and the monad of Courcelle's algebraic trees.
Can Independent Responses be Obtained from various Members in a Mail Panel Household?

A traditional problem with mail surveys is that there is no control on who answers the questionnaire. This study attempted to have members of husband-wife families complete two questionnaires independently. The results show that independent surveys cannot be conducted in the same household by mail and cast doubt on the ability to reach members other than the housewife in mail panel families.