Miracle-dz/UniFAR-FTUs huggingface dataset:
Autonomous in-orbit satellite assembly from a modular heterogeneous swarm

This paper presents a decentralized guidance and control scheme to combine a heterogeneous swarm of component satellites into a large satellite structure. Building on prior work, the Swarm Orbital Construction Algorithm was made more realistic and correct by changing the docking and collision avoidance criteria and implementing a nonlinear correction in the convex optimization solver. The algorithm was then extended to function in a simulated perturbed 6-DOF spacecraft environment. This required the addition of an attitude barrier function to the target assignment algorithm as discussed in the previous paper, as well as the selection of a realistic range for actuator performance and spacecraft shape parameters. Simulation results are presented using a swarm of CubeSat-class satellites.
Automated detection in complex objects using a tracking algorithm in multiple X-ray views

We propose a new methodology to detect parts of interest inside of complex objects using multiple X-ray views. Our method consists of two steps: ‘structure estimation’, to obtain a geometric model of the multiple views from the object itself, and ‘parts detection’, to detect the object parts of interest. The geometric model is estimated by a bundle adjustment algorithm on stable SIFT keypoints across multiple views that are not necessary sorted. The detection of the object parts of interest is performed by an ad-hoc segmentation algorithm (application dependent) followed by a tracking algorithm based on geometric and appearance constraints. It is not required that the object parts have to be segmented in all views. Additionally, it is allowed to obtain false detections in this step. The tracking is used to eliminate the false detections without discriminating the object parts of interest. In order to illustrate the effectiveness of the proposed method, several applications — like detection of pen tips, razor blades and pins in pencil cases and detection of flaws in aluminum die castings used in the au-tomative industry — are shown yielding a true positive rate of 94.3% and a false positive rate of 5.6% in 18 sequences from 4 to 8 views.
AN ONTOLOGY FOR TRAJECTORY SIMULATION

From the concept exploration for a weapon system to training simulators, from hardware-in-the-loop simulators to mission planning tools, trajectory simulations are used throughout the life cycle of a weapon system. A trajectory simulation can be defined as a computational tool to calculate the flight path and flight parameters of munitions. There is a wide span of trajectory simulations differing widely with respect to their performance and fidelity characteristics, from simple point-mass simulations to sixseven degrees of freedom hardware-in-the-loop missile simulations. From our observations, it is a common practice in the industry that developments of these simulations are carried out as isolated projects although they rely on the same body of knowledge. We envision an ontology that will capture the common knowledge in trajectory simulation domain and make domain knowledge available for reuse. Trajectory Simulation Ontology, dubbed TSONT, is being developed to realize this vision.
Changes in susceptibility of tissues to lipid peroxidation after ingestion of various levels of docosahexaenoic acid and vitamin E

To examine the effects of dietary docosahexaenoic acid (DHA) on the potential changes in endogenous lipid peroxidation in the liver and kidney, diets containing a fixed amount of vitamin E (VE; RRR-α-tocopherol equivalent; 134 mg/kg diet) and a graded amount of DHA at the levels of 0, 1.0, 3.4 and 8.7% of total dietary energy were fed to rats for 14 d (Expt 1). In Expt 2, diets containing a fixed amount of DHA (8.7% of total dietary energy) and a graded amount of VE at the levels of 54, 134 and 402 mg/kg were fed to rats for 15 d. In Expt 1 it was found that endogenous lipid peroxide contents of the liver and kidney, as measured by thiobarbituric acid value and chemiluminescence intensity, were higher, and their α-tocopherol contents lower than those of the controls, with a gradual increase and decrease in values respectively as the dietary DHA level increased (Expt 1). However, the contents of water-soluble antioxidants, i.e. ascorbic acid and non-protein-SH (glutathione), increased with increases in the dietary DHA level, while the Se-dependent glutathione peroxidase (EC 1.11.1.9) activities did not change or tended to be lower. When the graded level of VE was given to rats in Expt 2, lipid peroxide contents in the liver and kidney did not change significantly in response to the increasing levels of dietary VE, although their α-tocopherol contents were higher than control values, increasing with increases in the dietary VE levels. The lipid peroxide scavengers other than a-tocopherol changed similarly to those in Expt 1. The results obtained in Expts 1 and 2 indicate that DHA enhances the susceptibility of the liver and kidney to lipid peroxidation concomitant with higher levels of DHA in these tissues, as shown by the fatty acid composition. In addition, VE is unable to protect membranes of the liver and kidney rich in DHA from lipid peroxidation, even after ingestion of the highest level of VE. However, the liver lipid peroxide content of the group given the highest level of DHA was not as high as expected, based on the peroxidizability index which was calculated from the fatty acid composition of the liver lipid.
The effects of culture on knowledge management practice: A qualitative case study of MSC status companies

Knowledge is recognised as being an important asset in organisations these days. Despite this, many organisations are not doing enough to effectively manage this important asset for its competitive advantage. In response to this, knowledge management which is defined as a process that effectively creates, captures, shares and uses organisation-wide knowledge to improve the organisation’s performance was conceived and has since gained widespread acceptance the world over. Despite its widespread acceptance, little is known about the current levels of knowledge management within the Malaysian context, in particular amongst the Multimedia Super Corridor (MSC) status companies in Malaysia. Furthermore, the extent to which cultural factors impact upon knowledge management practice in these companies is not known. This study investigated the various cultural factors (collaboration, mutual trust, leadership and incentives/rewards) using a multiple case study approach operating within a critical realism research paradigm and found that these factors have impact on the level of knowledge management practice. The study also established that cultural factors do play an important role in facilitating knowledge management practice in these MSC status companies in Malaysia. It was found that collaboration, mutual trust, leadership, kiasu-ism and incentives/rewards have significant impact on the level of knowledge management practice. In view of the findings of this study, it is suggested that the relevant authorities pay adequate attention on these
Peer-to-Peer Cooperative Driving

In this paper we address database-related issues in the emerging application field of ITS (Intelligent Transportation Systems). In this context we propose and study two cooperative driving scenarios: on-the-fly highway alert scenario and mutual driving group scenario. Vehicles cooperate and coordinate their actions by exchanging information, hence the need for database technologies such as consistency, replication, and query optimization. Technical requirements and suitability of technologies such as wireless and peer-to-peer communication and mobile ad-hoc networks are discussed. We introduce the notion of a peerdependent query for the application environment.
World Vaping Day: Contextualizing Vaping Culture in Online Social Media Using a Mixed Methods Approach

Few studies have demonstrated the use of mixed methods research to contextualize health topics using primary data from social media. To address this gap in the methodological literature, we present research about electronic nicotine delivery systems, using Twitter data from “World Vaping Day. ” To engage with the quantitative breadth and qualitative depth of 5,149 collected tweets, we utilized a convergent parallel mixed methods framework, integrating thematic prevalence estimates with phenomenological contextualization. Sentiment was more positive than negative across all categories except policy related. A total of 23% of tweets were promotional and relatively few tweets related to tobacco use (4.9%) or health concerns (4.2%). Salient themes included modifying or upgrading electronic nicotine delivery systems devices, and general mistrust of public health advocates and tobacco companies.
Adding syntactic structure to bilingual terminology for improved domain adaptation

Deep-syntax approaches to machine translation have emerged as an alternative to phrase-based statistical systems. TectoMT is an open source framework for transfer-based MT which works at the deep tectogrammatical level and combines linguistic knowledge and statistical techniques. When adapting to a domain, terminological resources improve results with simple techniques, e.g. force-translating domain-speciﬁc expressions. In such approaches, multiword entries are translated as if they were a single token-with-spaces, failing to represent the internal structure which makes TectoMT a powerful translation engine. In this work we enrich source and target multiword terms with syntactic structure, and seamlessly integrate them in the tree-based transfer phase of TectoMT. Our experiments on the IT domain using the Microsoft terminological resource show improvement in Spanish, Basque and Portuguese.
A Robust Finite Element Discretization forRadiative Transfer Problems with ScatteringGuido Kanschat IWR

A stabilized weak formulation of the radiative transfer equation is presented, which is stable independent of the scattering coeecient. This enables the use of standard nite element discretizations without further algebraic constraints. Furthermore, a weighted residual-based a posteriori error estimate is derived for the discrete solution. An example demonstrates the eeciency of the new method.
Inline conversion filter capable of selecting reflection and transmission spectra of different bragg gratings using polarization-diversity loop

In this paper, we have demonstrated an inline conversion of transmission or reflection spectra of two fiber Bragg gratings (FBGs) having a different Bragg wavelength by incorporating a polarization-diversity loop without reconfiguring the filter structure. The proposed apparatus consists of a fiber-pigtailed polarization beam splitter, two FBGs, and three quarter-wave plates (QWPs). Without requiring reconnect of input/output ports or additional optical switches, the spectral selecting operation of the FBGs were carried out through proper adjustment of the QWPs contained in the proposed filter.
The Language of Press Advertising in the UK

This exploratory study provides the first multi-dimensional (MD) analysis of textual variation in modern British press advertising, using Biber’s (1988) methodology. The 364 texts used in the study are systematically sampled to include both commercial advertisements sub-categorized by various types of goods and services, and non-commercial advertisements sponsored by charities and the government. Six dimensions of variation in advertising discourse are identified through a factor analysis, on the basis of linguistic co-occurrence patterns. In particular, several different mechanisms of persuasion are identified and compared. The proposed MD model is then applied to analyze gender-specific advertising strategies. Focusing on one product type, I show that advertisements targeting females tend to use elaborate product descriptions with a semi-scientific focus, while adverts aimed at males are characterized by a terse description dominated by disjunctive grammatical structure. Possible causes of the observed variation are critically discussed, and further research issues amenable to the proposed model are briefly outlined.
Merger Control in Di ff erentiated Product Industries ∗

Thresholds defined on the level and change in the HHI (HerfindahlHirschmann Index) applied to market shares seem to be the main instrument to select notified mergers for investigation in both the EU and US. We question the use of such a selection rule in differentiated products industries. We propose the use of a structural approach to apply HHI thresholds based on profit shares rather than market shares. We illustrate our point using product data for Retail Carbonated Soft Drinks (Price, Market Share and Characteristics). We estimate company (product) mark-ups consistent with a structural model of equilibrium, using demand primitives from a Nested Logit model and a Random Coefficient model. We provide an example where the HHI thresholds based on profit shares identify potentially damaging mergers not captured by applying thresholds to output shares, or conversely, identify mergers of no concern that would be selected on the basis of output shares.
Among Aggressor/Victim Subgroups in South Korea Quality as Correlates of Peer Aggression and Peer Victimization Interparental Conflict, Parenting Behavior, and Children's Friendship

Abstract The focus of this study was to examine whether interparental conflict, maternal parenting behaviors, and children’s friendship quality varied as a function of peer aggression/victim subgroups among a sample of 227 elementary school children and their mothers in South Korea. Both self-report and peer-report data indicated that the majority of the students were uninvolved in peer aggression situations, and the number of participants in the subgroups (aggressors, victims, and aggressor-victims) varied depending on the source of report. According to the self-report data, victims and aggressor-victims reported a higher level of maternal rejection than uninvolved youth. Aggressors, victims, and aggressor-victims reported higher 1 Ewha Womans University, Seoul, Korea 2 Wayne State University, Detroit, MI, USA 3 University of Illinois at Urbana–Champaign, USA Corresponding Author: Jung-Hee Shin, Department of Child Development, College of Social Science, Ewha Womans University, Daehyun-dong 11-1, Seodaemun-gu, Seoul 120-750, South Korea. Email: musicshin@ewha.ac. kr
A 0.5V 2.2pW 2-transistor voltage reference

A voltage reference using a depletion-mode device is designed in a 0. 13µm CMOS process and achieves ultra-low power consumption and sub-1V operation without sacrificing temperature and supply voltage insensitivity. Measurements show a temperature coefficient of 19.4ppm/° (3.4 µV/°), line sensitivity of 0.033%/V, power supply rejection ratio of−67dB, and power consumption of 2.2pW. It requires only two devices and functions down to V<inf>dd</inf>=0.5V with an area of 1350µm<sup>2</sup>. A variant for higher Vout is also demonstrated.
The building blocks of complexity : a unified criterion and selected applications in economics and finance 1

The analysis of many complex problems and complex dynamic systems shows that there are dependencies between high complexity and the existence of large grids in the underlying structures containing inhomogeneous elements and including an irregular flow of information. This complexity criterion is formulated in a precise way and analysed in different areas of application, particularly for selected problems from economics and finance. We discuss how our criterion can be applied to make complex problems more tractable by exploring structural parameters to control the complexity of problems and systems in complexity engineering. In some areas the criterion is provable in a strong mathematical sense, whereas in others it is confirmed by numerous examples, without finding a counterexample. The areas of application cover: complexity theory, design of efficient algorithms, dynamic systems, chaos theory, neural networks, auctions, capital markets, portfolio credit risk and operational risk management.
On Synchronization of Interdependent Networks

It is well-known that the synchronization of diffusively-coupled systems on networks strongly depends on the network topology. In particular, the so-called algebraic connectivity $\mu_{N-1}$, or the smallest non-zero eigenvalue of the discrete Laplacian operator plays a crucial role on synchronization, graph partitioning, and network robustness. In our study, synchronization is placed in the general context of networks-of-networks, where single network models are replaced by a more realistic hierarchy of interdependent networks. The present work shows, analytically and numerically, how the algebraic connectivity experiences sharp transitions after the addition of sufficient links among interdependent networks.
Combining mental imagery and implementation intentions to increase brisk walking in people with the symptoms of depression

Volume one consists of three parts. Part one is a meta-analytic review investigating the effect of various doses of physical exercise on the symptoms of depression. The quality of twelve Randomised Controlled Trials (RCTs) was assessed. Outcomes from four RCTs were included in a meta-analysis. Results indicated that higher doses of exercise were more effective than no exercise in reducing the symptoms of depression, whereas there was no difference between lower doses of exercise and no exercise. The findings are interpreted with caution and more robust research is required to investigate the relationship between exercise and depression, addressing the methodological limitations discussed in this review. Part two is an empirical study investigating the extent to which people with the symptoms of depression could generate mental imagery to increase goal attainment. Sixty five students were given the goal of increasing brisk walking over two weeks. According to randomisation participants were either asked to rehearse the goal, to form implementation intentions about the goal or to imagine themselves undertaking the goal. Brisk walking increased with no between-group differences. It was tentatively concluded that being given a goal intention was sufficient to improve attainment. Further research, controlling for research participation effects and natural changes in behaviour, is required to confirm the finding. Part three is a critical appraisal of the meta-analytic review and empirical study. It explores the personal implications the empirical study has had upon clinical work. It also evaluates the empirical study’s web-based design, highlighting the methodological and ethical issues that were raised. Finally, the process of undertaking a meta-analysis is discussed, with specific focus on the challenges posed by this methodology.
Online Quadratically Constrained Convex Optimization with Applications to Risk Adjusted Portfolio Selection

While online convex optimization has emerged as a powerful large scale optimization approach, much of existing literature assumes a simple way to project onto a given feasible set. The assumption is often not true, and the projection step usually becomes the key computational bottleneck. Motivated by applications in risk-adjusted portfolio selection, in this paper we consider online quadratically constrained convex optimization problems, where the feasible set involves intersections of ellipsoids. We show that regret guarantees for the online problem can be achieved by solving a suitable quadratically constrained quadratic program (QCQP) at each step, and present an efficient algorithm for solving QCQPs based on the alternating directions method. We then specialize the general framework to risk adjusted portfolio selection. Through extensive experiments on two real world stock datasets, our proposed algorithm RAMP is shown to significantly outperform existing approaches at any given risk level and match the performance of the best heuristics which do not accommodate risk constraints.
Whatever happened to curriculum theory? Critical realism and curriculum change

In the face of what has been characterised by some as a ‘crisis’ in curriculum – an apparent decline of some aspects of curriculum studies combined with the emergence of new types of national curricula which downgrade knowledge – some writers have been arguing for the use of realist theory to address these issues. This article offers a contribution to this debate, drawing upon critical realism, and especially upon the social theory of Margaret Archer. The article first outlines the supposed crisis in curriculum, before providing an overview of some of the key tenets of critical realism. It concludes by speculating on how critical realism may offer new ways of thinking to inform policy and practice in a key curricular problematic. This is the issue of curriculum change.
Beyond the Ethnic Divide. Toward a Cultural-Sociological Understanding of Ethnocentrism

markdownabstract__Abstract__ Imagine you are sitting in a train and someone with another ethnic background than your own comes to sit opposite you. If asked to describe this person afterwards, would you remember this person’s ethnic background, or would it be other characteristics that come to mind first? If this person would behave rudely, for example by talking on the phone very loudly, would you judge this person differently than you would have done if he had belonged to your own ethnic group? And would you think differently about this person if you knew he was highly or low skilled?
Transcriptome Analysis of Tomato Flower Pedicel Tissues Reveals Abscission Zone-Specific Modulation of Key Meristem Activity Genes

Tomato flower abscises at the anatomically distinct abscission zone that separates the pedicel into basal and apical portions. During abscission, cell separation occurs only at the abscission zone indicating distinctive molecular regulation in its cells. We conducted a transcriptome analysis of tomato pedicel tissues during ethylene promoted abscission. We found that the abscission zone was the most active site with the largest set of differentially expressed genes when compared with basal and apical portions. Gene Ontology analyses revealed enriched transcription regulation and hydrolase activities in the abscission zone. We also demonstrate coordinated responses of hormone and cell wall related genes. Besides, a number of ESTs representing homologs of key Arabidopsis shoot apical meristem activity genes were found to be preferentially expressed in the abscission zone, including WUSCHEL (WUS), KNAT6, LATERAL ORGAN BOUNDARIES DOMAIN PROTEIN 1(LBD1), and BELL-like homeodomain protein 1 (BLH1), as well as tomato axillary meristem genes BLIND (Bl) and LATERAL SUPPRESSOR (Ls). More interestingly, the homologs of WUS and the potential functional partner OVATE FAMILIY PROTEIN (OFP) were subsequently down regulated during abscission while Bl and AGL12 were continuously and specifically induced in the abscission zone. The expression patterns of meristem activity genes corroborate the idea that cells of the abscission zone confer meristem-like nature and coincide with the course of abscission and post-abscission cell differentiation. Our data therefore propose a possible regulatory scheme in tomato involving meristem genes that may be required not only for the abscission zone development, but also for abscission.