Miracle-dz/UniFAR-FTUs huggingface dataset:
The study of a RF MEMS switch based on LCP substrate

This paper reports a RF MEMS switch which is fabricated on a Liquid Crystal Polymer (LCP) substrate. The low cost, low water absorption, low dielectric loss and multi-layer circuit capability make LCP substrate very suitable for RF devices and RF circuits. The novelty of the proposed switch which is fabricated on LCP substrate is that the DC signal which is applied to activate the switch and the AC signal of the clamped-clamped CPW switch is separated. The experiment results show good microwave performance, when the switch is in the DOWN state, the isolation is around 20dB up to 20GHz. When the switch is in the UP state, the insertion loss is around 0.50dB up to 20GHz and the return loss is better than 20dB up to 20GHz.
Open Citation Linking: The Way Forward

The speed of scientific communication — the rate of ideas affecting other researchers' ideas — is increasing dramatically. The factor driving this is free, unrestricted access to research papers. Measurements of user activity in mature eprint archives of research papers such as arXiv have shown, for the first time, the degree to which such services support an evolving network of texts commenting on, citing, classifying, abstracting, listing and revising other texts. The Open Citation project has built tools to measure this activity, to build new archives, and has been closely involved with the development of the infrastructure to support open access on which these new services depend. This is the story of the project, intertwined with the concurrent emergence of the Open Archives Initiative (OAI). The paper describes the broad scope of the project's work, showing how it has progressed from early demonstrators of reference linking to produce Citebase, a Web-based citation and impact-ranked search service, and how it has supported the development of the EPrints.org software for building OAI-compliant archives. The work has been underpinned by analysis and experiments on the semantics of documents (digital objects) to determine the features required for formally perfect linking — instantiated as an application programming interface (API) for reference linking — that will enable other applications to build on this work in broader digital library information environments.
SWRL rule based precondition and effects service matching

The rapid development of Web service technologies has dramatically increased the quantity of available web services. Hence, it becomes a challenging task to efficiently discover services that exactly match user requirements from the large and growing service library. The rule-based semantic web service discovery strategy proposed in this paper documents the formal description of semantic web service, rule, and service matching etc. Service matching which is regarded as rule-based reasoning problem in this paper achieved by knowledge-base and reasoning technologies. IO-based matching services is to discovery the user required service via matching the service's input/output and user-desired input/output. In real life, the implementation of many services need to meet the more complicated pre-conditions (Preconditions) and effects, such as the implementation of some services need to have authorization (the Authorized), also have some effect (Effects) after the service execution. This paper use the IO-based matching service discovery algorithm as the basis and improve the service discovery's accuracy by adding the matching of the precondition and effect of service. In this paper, a rule-based reasoning mechanism is proposed to implement IOPE services matching algorithm, some experiment are conducted to verify the feasibility and effectiveness of the algorithm.
Cell fate specification along the anterior–posterior axis of the intermediate mesoderm

The vertebrate intermediate mesoderm (IM) is highly patterned along the anterior–posterior (A‐P) axis. In the chick embryo, the kidney tissue, which is a derivative of the IM, is generated only from IM located posterior to the sixth somite axial level, which also marks the border between cranial and trunk segments. The cellular and molecular mechanisms that govern the formation of the anterior border of the kidney morphogenetic field are currently unknown. In this study, we asked whether specific A‐P patterning information is conveyed by the movement of cells through the primitive streak (PS) at different time points that consequently affects the expression of kidney genes, or by the environment that these cells encounter during their migration to the IM. In this study, we show that kidney‐inductive signals are present along the whole axis, including anterior non–kidney‐generating regions. These inductive signals are generated by tissues that are located medial to the anterior IM. We also demonstrate that cells that migrate through the PS of early embryonic stages (Hamburger and Hamilton stage 3–4 and earlier), which will give rise to anterior nonkidney IM, are competent to respond to these inductive factors. This prospective anterior IM tissue loses its competence to respond to kidney inducing signals during its migration from the PS to its final location in the anterior IM. We present here a model in which changes in cell competence determine the formation of the anterior border of kidney gene expression and discuss the possible evolutionary implications of this developmental mechanism. Developmental Dynamics 232:901–914, 2005. © 2005 Wiley‐Liss, Inc.
Oscillation of APC/C activity during cell cycle arrest promotes centrosome amplification

Summary Centrosome duplication is licensed by the disengagement, or ‘uncoupling’, of centrioles during late mitosis. However, arrest of cells in G2 can trigger premature centriole disengagement. Here, we show that premature disengagement results from untimely activation of the anaphase-promoting complex (APC/C), leading to securin degradation and release of active separase. Although APC/C activation during G2 arrest is dependent on polo-like kinase 1 (Plk1)-mediated degradation of the APC/C inhibitor, early mitotic inhibitor 1 (Emi1), Plk1 also has a second APC/C-independent role in promoting disengagement. Importantly, APC/C and Plk1 activity also stimulates centriole disengagement in response to hydroxyurea or DNA damage-induced cell-cycle arrest and this leads to centrosome amplification. However, the reduplication of disengaged centrioles is dependent on cyclin-dependent kinase 2 (Cdk2) activity and Cdk2 activation coincides with a subsequent inactivation of the APC/C and re-accumulation of cyclin A. Although release from these arrests leads to mitotic entry, the presence of disengaged and/or amplified centrosomes results in the formation of abnormal mitotic spindles that lead to chromosome mis-segregation. Thus, oscillation of APC/C activity during cell cycle arrest promotes both centrosome amplification and genome instability.
Computing and Applying Trust in Web-based Social Networks

The proliferation of web-based social networks has lead to new innovations in social networking, particularly by allowing users to describe their relationships beyond a basic connection. In this dissertation, I look specifically at trust in web-based social networks, how it can be computed, and how it can be used in applications. I begin with a definition of trust and a description of several properties that affect how it is used in algorithms. This is complemented by a survey of web-based social networks to gain an understanding of their scope, the types of relationship information available, and the current state of trust. The computational problem of trust is to determine how much one person in the network should trust another person to whom they are not connected. I present two sets of algorithms for calculating these trust inferences: one for networks with binary trust ratings, and one for continuous ratings. For each rating scheme, the algorithms are built upon the defined notions of trust. Each is then analyzed theoretically and with respect to simulated and actual trust networks to determine how accurately they calculate the opinions of people in the system. I show that in both rating schemes the algorithms presented can be expected to be quite accurate. These calculations are then put to use in two applications. FilmTrust is a website that combines trust, social networks, and movie ratings and reviews. Trust is used to personalize the website for each user, displaying recommended movie ratings, and ordering reviews by relevance. I show that, in the case where the user's opinion is divergent from the average, the trust-based recommended ratings are more accurate than several other common collaborative filtering techniques. The second application is TrustMail, an email client that uses the trust rating of each sender as a score for the message. Users can then sort messages according to their trust value. I conclude with a description of other applications where trust inferences can be used, and how the lessons from this dissertation can be applied to infer information about relationships in other complex systems.
Reduction of Harmonics from MW-class Wind Turbines by Interlaced Active Front-Ends

With the request of renewable energy also the size of the wind turbines is growing. The converters used to connect them to the grid have to transfer a big amount of captured power. Since they handle high power, the switching devices work with a low switching frequency. This results in a high harmonic distortion of the injected currents and the need of big passive filters on ac side. In order to improve the power quality of the transferred wind energy, an inverter system made up of interlaced active front-ends is proposed. Its mathematical model is also developed in order to analyze harmonic distortion. It can be introduced in the existing models of wind turbines and grid. The numerical results prove the benefits of the proposed system.
Blur detection in image sequences recorded by a wearable camera

A new method based on the Discrete Cosine Transform (DCT) and the Otsu method for blur detection in image sequences is proposed in this paper. In the first step, the standard deviation (STD) and the DCT coefficients are utilized to detect blurred and homogeneous areas in each image. Then, the Otsu method is used to calculate an adaptive threshold in each segment of the image sequence. Our experiments illustrate that the proposed method is robust and effective.
The High-Frequency Coastal Radar Network Operated by Puertos del Estado (Spain): Roadmap to a Fully Operational Implementation

In this paper, a detailed description of the roadmap to transform four individual CODAR SeaSonde high-frequency (HF) radars into an integrated HF radar network operated by Puertos del Estado (Madrid, Spain) is provided. To assess the maturation process into a fully operational status, the system must evolve via an implementation of phased approaches, including: homogenization of maintenance practices, quality control checks in real time, standardization of data access, and development of customized visualization tools. Additionally, continuous validation works with independent in situ sensors are required to provide upper bounds on both radial and total radar current measurement accuracies. Consistent correlation coefficients and uncertainty values emerge in the range of 0.31–0.81 and 8–22 cm/s, respectively, for the remotely estimated velocities. Complementarily, a dedicated online website has been developed to operationally monitor radar system health in real time. This automated quality control application analyzes a number of diagnose parameters to obtain estimates of their standard ranges and evaluate radar site performance according to them. Abrupt changes, gradual degradation, and/or failure problems can be easily detected, triggering alerts for troubleshooting. Once a good performance of HF radar systems is ensured, 2-D surface current maps are used for a broad range of practical applications, i.e., search-and-rescue operations, oil spill response, or the rigorous skill assessment of an operational ocean forecasting system such as Iberia–Biscay–Ireland (IBI), implemented within the frame of the Copernicus Marine Environment Monitoring Service.
Singularity analysis of a 3-DOF parallel manipulator with R-P-S joint structure

This paper presents a singularity analysis for a 3-DOF parallel manipulator with R-P-S (Revolute-Prismatic-Spherical) joint structure. All three types of singularities are investigated with most attention paid for direct kinematics singularities (DKS). The loci of inverse kinematics and combined singularities are identified using a new approach. The equation of DKS is defined first from the condition of existence of an instantaneous motion. The geometrical method is used to find the loci of trajectories corresponding to DKS-s. As a result of these investigations, an optimization procedure was proposed of a robot design in order to have an enlarged singularity free part of the working space. The construction of a singularity free path is discussed without changing the robot trajectory by selecting the appropriate inverse kinematics task solution.
Robust stability analysis of uncertain switched linear systems with unstable subsystems

The problem of robust stability for switched linear systems with all the subsystems being unstable is investigated. Unlike the most existing results in which each switching mode in the system is asymptotically stable, the subsystems may be unstable in this paper. A necessary condition of stability for switched linear systems is first obtained with certain hypothesis. Then, under two assumptions, sufficient conditions of exponential stability for both deterministic and uncertain switched linear systems are presented by using the invariant subspace theory and average dwell time method. Moreover, we further develop multiple Lyapunov functions and propose a method for constructing multiple Lyapunov functions for the considered switched linear systems with certain switching law. Several examples are included to show the effectiveness of the theoretical findings.
Kuhn: Philosopher of Scientific Revolution

Acknowledgements. Abbreviations for Kuhn's Works. Introduction: The Legendary Thomas Kuhn. Part I Exposition. 1 The Structure of Scientific Revolutions. 2 The Historical Case Studies. Part II Critical Issues. 3 Kuhn and the Methodologists of Science. 4 Incommensurability 1: Relativism about Truth and Meaning. 5 Incommensurability 2: World Changes. Conclusion: The Unresolved Tension. Notes. Bibliography. Index
THE LITTLE PUSH: ROLE OF INCENTIVES IN DETERMINING HOUSEHOLD BEHAVIOUR IN INDIA

Title of dissertation: THE LITTLE PUSH: ROLE OF INCENTIVES IN DETERMINING HOUSEHOLD BEHAVIOUR IN INDIA Uttara Balakrishnan Doctor of Philosophy, 2018 Dissertation directed by: Professor Pamela Jakiela Professor Kenneth Leonard A substantial proportion of households in India suffer from multiple deprivations low income, poor health, low education levels and poor housing conditions. Additionally, gender biases arising out of cultural norms disadvantage women even more. Programs that transfer cash to households are one way of attempting to break the cycle of poverty and gender bias. In my dissertation I study the impacts of three different cash transfer programs in India that specifically target the rural poor and attempt to either change behaviours directly or impact education and health as unintended consequences. In my first chapter, I hypothesize that a crucial determinant of son preference in Indian households is the high future costs of raising girls which arise from cultural traditions such as dowry payments at the time of marriage and impost a huge economic burden on households. I explore the role of future costs in determining son preference through the evaluation of a government program that was implemented in one state in India which gave incentives to couples to give birth to girls. I empirically show that an exogenous change in these future costs can have dramatic positive implications for fertility and sex-selective abortion behavior on the one hand, as well as positively impacting differential investment allocation within the household on the other. In my second essay, I examine whether provision of free rural health insurance in a developing country enables households to cope with health shocks by examining impacts on labour supply of individual household members. I find that, while men and women, both are increasingly likely to spend more hours per week on the labour market, the increase in labour supply for women is much steeper. I provide evidence that the program acts through two channels: a reduction in time spent at home for women in caregiving tasks and a reduction in time spent being unable to work due to major morbidities. Finally, in my third chapter, I examine if a public works program in India, that guaranteed employment to rural households, helps ameliorate the impacts of a negative agricultural productivity shock on child
Estudio empírico para la validación de indicadores de la reusabilidad de diagramas de clases UML

El objetivo de esta tesis es validar empiricamente una coleccion de metricas de propiedades estructurales de diagramas de clases UML (DC UML) como indicadores de su reusabilidad, utilizando para ello una familia de experimentos y un proceso experimental riguroso, seleccionando las tecnicas de analisis estadistico adecuadas a los objetivos, diseno y variables involucradas, Para ello se ha realizado una revision de los trabajos sobre modelos de reusabilidad, metricas y experimentos de DC UML, llegando a la conclusion de la carencia de metricas de reusabilidad para modelos de software, en particular para DC UML. La metodologia utilizada incluye modelos de contraste de hipotesis sobre coeficientes de correlacion y modelos lineales generales, asi como la potencia de los test cuando el resultado no es significativo. El objetivo principal de la tesis se ha estudiado dentro de un marco utilizado en otros experimentos de Ingenieria del Software Empirica (ISE), en el que ademas se plantean como objetivos secundarios, estudiar la conexion de las propiedades estructurales de los DC UML con su complejidad cognitiva y de esta con su reusabilidad. Para ello se han seleccionado 11 metricas de propiedades estructurales de DC UML validadas teoricamente, una metrica subjetiva de la complejidad cognitiva y dos metricas de subcaracteristicas de la reusabilidad que miden la facilidad de comprension y la de modificacion de los DC UML, respectivamente. El diseno de los experimentos se ha ido refinando, controlando posibles amenazas a la validez de los resultados por fatiga o aprendizaje realizando los test bajo supervision e inter-sujetos o bloqueando por experiencia de los sujetos. A traves de la familia de 9 experimentos se ha encontrado que las metricas de tamano, asociaciones, agregaciones y generalizaciones pueden ser indicadores de la comprensibilidad y la modificabilidad de los DC UML. Los resultados correspondientes a los objetivos secundarios se han sintetizado utilizando meta-analisis, y las conclusiones son que las metricas de propiedades estructurales y la complejidad cognitiva estan correlacionadas. Ademas, la complejidad cognitiva esta correlacionada con las dos metricas de la reusabilidad, especialmente con la comprensibilidad. Por ultimo, los resultados no significativos no son concluyentes, pues las potencias de los mismos eran malas, por debajo de 0,30. Asi que posibles relaciones no detectadas en esta familia podrian ser detectadas en otros experimentos.
Linear-chain CRF based intersection recognition

For autonomous navigation in urban environments, the ability to detect road intersections in advance is crucial, especially in the absence of auxiliary geographic information. In this paper we investigate a 3D Point Cloud based solution for intersection recognition and road segment classification. We set up the intersection recognition problem as one of decoding a linear-chain Conditional Random Field (CRF). This allows us to encode temporal consistency relations between adjacent scans in our process, leading to a less error prone recognition algorithm. We quantify this claim experimentally. We first build a grid map of the point cloud, segmenting the region surrounding the robot into navigable and non-navigable regions. Then, based on our proposed beam model, we extract a descriptor of the scene. This we do as each scan is received from the robot. Based on the descriptor we build a linear chain-CRF. By decoding the CRF-chain we are able to recognize the type of road segment taken into consideration. With the proposed method, we are able to recognize Xjunctions, T-shaped intersections and standard non-branching road segments. We compare the CRF-based approach with a standard SVM based one and show performance gain due to the CRF formulation.
Intensified pharmaceutical care is improving immunosuppressive medication adherence in kidney transplant recipients during the first post-transplant year: a quasi-experimental study.

BACKGROUND Medication adherence is critical for transplant patients because the consequences of non-adherence can result in allograft loss and may be life threatening. METHODS A prospective study with 74 renal transplant recipients using a sequential control group design was performed to investigate the impact of a pharmaceutical intensified care programme led by a clinical pharmacist on daily drug adherence during the first year after renal transplantation. Thirty-nine patients of the control group received the already established standardized drug and transplant training, while 35 patients of the intensified care group (ICG) received additional inpatient and outpatient pharmaceutical care and counselling by a dedicated clinical pharmacist. Applied interventions were clustered and classified using the behaviour change technique taxonomy according to Michie. Adherence to immunosuppressive drug therapy was monitored up to 1 year using a medication event monitoring system, pill count (PC), drug holiday (DH) occurrence, Morisky questionnaire and self-report. RESULTS Sixty-seven patients (35 of the standard care and 32 of the ICG) were analysed. Implementation of DA was significantly (P = 0.014) improved in patients of the ICG (91%) compared with SCG (75%) during the first year after transplantion. Daily adherence measures were already improved within 30-40 days after start of intensified patient care and continued throughout the study period. Intensified care patients also showed significantly better results for taking adherence (P = 0.006), PC (P = 0.008) and DHs (P = 0.001). CONCLUSIONS The additional, intensified pharmaceutical care improved patients' medication adherence remarkably, suggesting that the applied additional care programme has the potential to improve outcomes after organ transplantation.