Miracle-dz/UniFAR-FTUs huggingface dataset:
Analysis of realized peer-to-peer streaming topologies by Kronecker graphs

Modeling the overlay graph of peer-to-peer (P2P) data dissemination is inherently difficult due to the high dynamics of the peer behavior and the high degree of connectivity if we regard a mesh-pull architecture. We present a solution of the latter issue using the mathematical tools of Kronecker graphs.We are able to capture accurately the static structure of the overlay graph arising from a P2P streaming application. To validate our proposal, we use a large data set of a worldwide distributed measurement campaign arising from the live streaming system SopCast. First, we determine the basic parameters of our Kronecker graphs model by an EM-algorithm. Then we use it to generate a synthetic graph and compare the properties of both structures. The results of our analysis illustrate the coincidence of several graph-theoretical properties of the realized and synthetic overlay graph and underline the great potential of a modeling approach based on Kronecker graphs.
Poverty-Related Adversity and Emotion Regulation Predict Internalizing Behavior Problems among Low-Income Children Ages 8–11

The current study examines the additive and joint roles of chronic poverty-related adversity and three candidate neurocognitive processes of emotion regulation (ER)—including: (i) attention bias to threat (ABT); (ii) accuracy of facial emotion appraisal (FEA); and (iii) negative affect (NA)—for low-income, ethnic minority children’s internalizing problems (N = 338). Children were enrolled in the current study from publicly funded preschools, with poverty-related adversity assessed at multiple time points from early to middle childhood. Field-based administration of neurocognitively-informed assessments of ABT, FEA and NA as well as parental report of internalizing symptoms were collected when children were ages 8–11, 6 years after baseline. Results suggest that chronic exposure to poverty-related adversity from early to middle childhood predicted higher levels of internalizing symptomatology when children are ages 8–11, even after controlling for initial poverty status and early internalizing symptoms in preschool. Moreover, each of the 3 hypothesized components of ER played an independent and statistically significant role in predicting children’s parent-reported internalizing symptoms at the 6-year follow-up, even after controlling for early and chronic poverty-related adversity.
Exploring Low-Latency Interconnect for Scaling Out Software Routers

We propose and evaluate RoCE (RDMA over Converged Ethernet) as a low-latency back-plane for horizontally scaled software router nodes. By exploring combinations of design choices in developing internal fabric for software routers, we select a set of parameters and packet I/O APIs that yield the lowest latency and highest throughput. Using the optimal settings derived, we measure and compare latency and throughput of an RoCE interconnect against Ethernet using a high-performance userspace network driver (Intel DPDK). Our comparison shows that RoCE keeps low latency in all packet sizes while it has throughput penalties for network workloads (e.g., small packet sizes). To mitigate throughput penalties imposed by guaranteeing low latency, we suggest a hardware-assisted, batched forwarding scheme based on scatter-and-gather functionality of RDMA-capable NICs. When forwarding ingress network packets, our scheme achieves comparable to or higher throughput then Ethernet at the cost of several microseconds of latency.
Predictive factors for preeclampsia in pregnant women: a Receiver Operation Character approach

Introduction Preeclampsia is a major cause of maternal and prenatal mortality and morbidity worldwide. There are some risk factors that are of great value for prediction of preeclampsia by which the practitioners can counsel women regarding this disease. The aim of this study was to analyze the role of such risk factors as the predictors associated with preeclampsia among Iranian women using logistic regression. Material and methods The role of some risk factors such as demographic, anthropometric, medical and obstetrics variables in preeclampsia among 610 women attending the obstetric ward of Mustafa hospital in Ilam in the west of Iran was analyzed from May to September 2010. All the pregnant women referred to this hospital participated in the study except those cases that had abortion. Unvaried and Multiple logistic regression analyses were used to find the predictive factors behind preeclampsia. Standard errors of area compute using nonparametric methods. A p-value of 0.05 was considered statistically significant. Results Prevalence of preeclampsia was 9.5% (95% CI 7.4–11.6%). Predictive model build using history of preeclampsia, history of hypertension, and history of infertility. Area Under the Receiver Operation Character (AUROC) was estimated 0.67 (95% CI 0.59–0.67, p < 0.01) that showed that using the model is much better than having a guess. Conclusions The odd of preeclampsia increased in women with a history of preeclampsia, hypertension and infertility. Recognition of these predictor factors would improve the ability to diagnose and monitor women likely to develop preeclampsia before the onset of disease for timely interventions.
SELECTIVE ROLES OF THYMUS-DERIVED LYMPHOCYTES IN THE ANTIBODY RESPONSE

Passively transferred thymocytes and spleen cells from donors primed with keyhole limpet hemocyanin (KLH) exerted differential suppressive effect on IgM and IgG antibody responses of syngeneic recipients immunized with DNP-KLH depending primarily on the time when KLH-primed cells were transferred. This was demonstrated by the decrease in the numbers of DNP-specific direct and indirect PFC in the spleen of the recipients given KLH-primed cells at different times during primary and secondary immunization. Whereas the cell transfer simultaneously with or 2 days after the primary immunization produced only slight suppression of the peak IgM antibody response, it caused profound suppression of late IgM and IgG antibody responses. By contrast, the cell transfer 3 days after the immunization produced immediate suppression of the ongoing IgM antibody response resulting in its earlier termination, while being unable to prevent the induction of IgG antibody response. KLH-primed cells could moderately suppress the secondary anti-DNP antibody response, in which IgG antibody response was found to be slightly more sensitive than IgM antibody response to the suppressive influence of KLH-primed cells. The suppressive effect of the KLH-primed spleen cells was completely eliminated by the in vitro treatment of the cells with anti-θ and C before cell transfer, indicating that cells responsible for the suppression are, in fact, T cells. The suppression of DNP-specific antibody response by KLH-primed T cells was achieved only if the recipients were immunized with DNP-KLH but not with DNP-heterologous carrier, suggesting that direct interaction between T and B cells is necessary for the suppression of the antibody response. It is concluded that susceptibility of B cells to the specific suppressive influence of T cells is inherently different depending on the differentiation stage of B cells and on the immunoglobulin class they are destined to produce.
Finger walking: motion editing with contact-based hand performance

We present a system for generating full-body animations from the performance on a touch-sensitive tabletop of "finger walking", where two fingers are used to pantomime leg movements. A user study was conducted to explore how users can communicate full-body motion using their hands, which concluded that finger walking is a naturally-chosen and comfortable performance method. Based on contact data recorded during this study, the properties of a variety of performed locomotion types were analyzed to determine which motion parameters are most reliable and expressive for the purpose of generating corresponding full-body animations. Based on this analysis, a compact set of motion features was developed for classifying the locomotion type of a finger performance. A prototype interactive animation system was implemented to generate full-body animations of a known locomotion type from finger walking by estimating the motion path of a finger performance, and editing the path of a corresponding animation to match. The classification accuracy and output animation quality of this system was evaluated in a second user study, demonstrating that satisfying full-body animations can be reliably generated from finger performances.
Culture, institution and diverse approaches to care and care work in East Asia

This article describes two broad approaches to care and care work within a spectrum of approaches that are evident in East Asia: one that accepts care as a core public policy agenda, and tries to leverage it as a potential engine to activate the incipient care economy; and the other, that sees care as strictly private family responsibility, and hence opts to partially underwrite the familial care with a mix of tax and policy incentives through the private market – including creating channels for families to outsource care to foreign migrant care workers. The author uses elder care policies to illustrate ways in which socio-cultural ideas and institutional history shape national policies, and how these policies in turn shape ways in which care is delivered, and care work organized within the family and in the market.
Deployment of head-related transfer function using all-pole filters and neural network-based storage devices

The present study is concerned with the use of neural networks as storage devices for the deployment of head-related transfer function (HRTF) in three-dimensional (3D) audio applications. There are two main advantages for this proposition: reduced storage cost and direct interpolation. The network structure, training procedure, and experimental results are provided to illustrate the effectiveness of our approach. It is shown that by using 35% of the original number of filter parameters, a relatively low average spectral distortion of 1.62 dB can be obtained.
Growth pattern of stock cultures of five selected species of marine microalgae maintained under indoor controlled environment and under outdoor conditions

Growth pattern of five species of microalgae viz., Chaetoceros calcitrans, Dunaliella sp. , Isochrysis galbana, Tetraselmis tetrahele and Nannochloropsis salina were studied under indoor controlled conditions (at 230C) and under outdoor (at 28-30°C) conditions. The variations in ammonia and pH levels in the culture flasks over a period of 90 days were also studied. Results revealed that the pattern of growth of all five species of algae were significantly different (p<0.05) in the two different conditions. The results clearly showed that the growth of all the five species of algae were faster in outdoor conditions and outdoor cultures were able to maintain only for a maximum period of three months. Ammonia and pH levels recorded were higher in outdoor cultures which indicated higher physiological activities and growth. Ammonia and pH levels were found to increase gradually in all the cultures, upto 30 days under both conditions and subsequently found almost constant throughout the study. Even though ammonia levels were found to rise with increase in pH and temperature, it did not increase to a level that is detrimental to the microalgal cultures.
NSF/DARPA/NASA Digital Libraries Initiative: A Program Manager's Perspective

The Digital Libraries Initiative (DLI) was the result of a communitybased process which began in the late 1980s with informal discussions between researchers and agency program managers. These discussions progressed to planning workshops designed to develop research values and agendas and culminated in the National Science Foundation (NSF)/ Defense Advanced Research Projects Agency (DARPA)/National Aeronautics and Space Administration (NASA) Research in Digital Libraries Initiative announced in late 1993. With the selection and funding of the six DLI projects [http://www.cise. nsf.gov/iis/dli_home. html], interest and activities related to digital libraries accelerated rapidly. The six DLI projects became highly visible and influential efforts and grew in scope, participation, and influence. NSF and DARPA funded additional workshops as part of the DLI to develop consensus on specific digital libraries topical areas and boundaries, to bring together researchers to stimulate cross-disciplinary interaction, and to ponder together how best to adapt to a rapidly changing global information environment. By now, researchers and practitioners from many disciplines have been drawn into digital libraries research and related activities, f rom subject domains reaching far beyond the sciences into the arts and humanities. Based on the recognized achievements of DLI and the promise of additional Federal investment in digital libraries, a follow-up program was announced in the spring of 1998. In the new program, "Digital Libraries Initiative—Phase 2," NSF, DARPA, and NASA are jo ined by the National
Comparison of 8-kW CCTT IM and Discrete Inductor Interleaved Boost Converter for Renewable Energy Applications

This paper presents a comparison of two magnetic component topologies for use in a high-power high-current dc-dc boost preregulator for renewable applications. The industry-standard two-phase (2L) interleaved dc-dc boost converter consisting of two discrete toroid magnetic components is considered as the baseline design. A 3C92 CCTT-core split-winding integrated magnetic (CCTT IM) is developed and compared for similar conditions. The topologies are compared for the same worst case phase-current ripple conditions. First, the baseline industry-standard 2L design is presented, which consists of a toroidal magnetic component along with stranded copper conductors, which are used to reduce the effects of ac copper loss. The CCTT IM component is designed for the same worst case phase-current ripple as this allows for a size saving with respect to the baseline design. The CCTT IM boxed volume is investigated as the number of turns is varied, but for a like-for-like comparison, the final CCTT IM design has the same number of turns and copper cross-sectional area as the 2L baseline design. A 2D finite element analysis (FEA) is used in order to validate and optimize the designs. The 8-kW experimental results are presented that indicate that the CCTT IM option allows for an approximate reduction of 50% in both magnetic mass and boxed volume with respect to the 2L toroid inductors. Critically, this size saving does not come at the expense of reduced efficiency, and the CCTT IM exhibits greater efficiency than the 2L baseline design. The IM does require additional input capacitance compared to the 2L design. The overall $LC$ filter of the IM design, comprising the boost magnetics and input capacitance, is reduced by approximately 20% in volume and 44% in mass compared to the 2L design.
Spatial instability of boundary layer along impedance wall

A numerical analysis is made of the hydro-acoustical spatial instability, apparently occurring in a mean flow with thin boundary layer along a locally reacting lined d uct wall. This problem is of particular interest because unstable behaviour of liner and mean flow has been obs erved only very rarely. It is found that this instability quickly disappears for inc reasing boundary layer thickness. Specifically, for boundary-layer-thickness based Helmholtz numbers ! �/c0 of the order of 0.1 the growth rate vanishes and the instability disappears. This corresponds to very thin boundary layers for practical values of frequencies that occur in aero-engine applications, which is in turn in good agreement with the fact that in industrial practice no instabilities are observed.
Vacuum densities for a brane intersecting the AdS boundary

We investigate the Wightman function, the mean field squared and the vacuum expectation values of energy-momentum tensor for a scalar field in AdS spacetime, in the presence of a brane perpendicular to the AdS boundary. On the brane the field operator obeys Robin boundary condition. The vacuum expectation values are decomposed into the boundary-free AdS and brane-induced contributions. In this way, for points away from the brane, the renormalization is reduced to the one in pure AdS spacetime. It is shown that at proper distances from the brane larger than the AdS curvature radius the brane-induced expectation values decay as power-law for both massless and massive scalars. This behavior is in contrast to that for a plane boundary in Minkowski spacetime, with an exponential decay for massive fields. For Robin boundary conditions different from Dirichlet and Neumann ones, the brane-induced part in the energy density is positive near the brane and negative at large distances. For Dirichlet/Neumann boundary condition the corresponding energy density is negative/positive everywhere. We show that, for a fixed value of the proper distance from the brane, near the AdS boundary, the Neumann boundary condition is an "attractor" in the general class of Robin boundary conditions, whereas Dirichlet boundary condition is an "attractor" near the horizon.
Identity negotiation in the third space: an analysis of YouTube channels hosted by expatriates in Taiwan

ABSTRACT This article explores the potential of YouTube as a third space in which second/additional language learners negotiate for alternative identities. Although burgeoning research has illuminated how language learners are able to expand their identities and communicative repertoire through various digital media, relatively little attention has been paid to how video-sharing websites provide learners with discursive spaces that might differ from text-based online communities. Drawing on [Gee’s, J. P. (2000–2001). Identity as an analytic lens for research in education. Review of Research in Education, 25, 99–125] identity framework, our qualitative content analysis [Hsieh, H. -F. , & Shannon, S. E. (2005). Three approaches to qualitative content analysis. Qualitative Health Research, 15, 1277–1288] examines 116 videos from three popular YouTube channels hosted by Chinese as an additional language (CAL) learners expatriating in Taiwan. The findings indicate that by utilizing mixed semiotic tools and interactional opportunities afforded by YouTube, the video hosts are able to showcase their transnational experiences and construct alternative discourse identities vis-à-vis traditionally less powerful identities such as subjugated foreigners and CAL learners.
Genetically optimizing query expansion for retrieving activities from the web

Activities, defined as actions someone can accomplish or things one can create, are located all around the web contained in various How-To and DIY sites. In this paper we are presenting our research on a system focused on retrieving information about activities related to a simple query which is given as input. An overview of the system's design which is based on semantic query expansion is given along with detailed explanation of the optimization of the system's parameters through the use of genetic algorithms. Finally experimental results gathered from both an offline and a limited online evaluation are presented in order to test the efficiency of the system.
Treatment of alcoholic hepatitis: is this a “dead-end”?

Summary from the trial. All patients were followed for 12 months or until their death with the exception of patients enrolled at the end of the trial. Th e primary endpoint was mortality at 28 days and secondary endpoints included mortality or liver transplantation at 90 days and aft er 1 year. Neither drug showed mid- (90 days) or long-term (12 months) survival benefi t. However, prednisolone was associated with an improvement in 28-day mortality with an odds ratio of 0.72 (95%CI 0.52-1.01; P=0.06). In multivariate analysis, baseline age, encephalopathy, white cell count, prothrombin ratio and levels of bilirubin, creatinine and urea were found to be additional signifi cant factors for mortality. In a secondary analysis adjusting for these prognostic variables the odds ratio for 28-day mortality among the patients who received prednisolone compared with those who did not was 0.61 (95%CI 0.41-0.91; P=0.02). Serious adverse events were reported in 42% of the patients with approximately half of them resulting in death. No signifi cant diff erences in the rate of adverse events were noted between treatment groups. However, infection occurred more frequently in patients who received prednisolone compared with those who did not (13% vs. 7%, P=0.002). Of note, infections were the main reason for death in this trial (24% of deaths). Finally, pentoxifylline was associated with numerically fewer cases of acute kidney injury.
RULE-BASED SEGMENTATION OF LIDAR POINT CLOUD FOR AUTOMATIC EXTRACTION OF BUILDING ROOF PLANES

This paper presents a new segmentation technique for LIDAR point cloud data for automatic extraction of building roof planes. Using the ground height from a DEM (Digital Elevation Model), the raw LIDAR points are separated into two groups: ground and nonground points. The ground points are used to generate a ‘building mask’ in which the black areas represent the ground where there are no laser returns below a certain height. The non-ground points are segmented to extract the planar roof segments. First, the building mask is divided into small grid cells. The cells containing the black pixels are clustered such that each cluster represents an individual building or tree. Second, the non-ground points within a cluster are segmented based on their coplanarity and neighbourhood relations. Third, the planar segments are refined using a rule-based procedure that assigns the common points among the planar segments to the appropriate segments. Finally, another rule-based procedure is applied to remove tree planes which are small in size and randomly oriented. Experimental results on the Vaihingen data set show that the proposed method offers high building detection and roof plane extraction rates.
Argumentation Mark-Up: A Proposal

This is a proposal for a an XML mark-up of argumentation. The annotation can be used to help the reader (e.g. by means of selective highlighting or diagramming), and for further processing (summarization, critique, use in information retrieval). The article proposes a set of markers derived from manual corpus annotation, exemplifies their use, describes a way to assign them using surface cues and limited syntax for scoping, and suggests further directions, including an acquisition tool, the application of machine learning, and a collaborative DTD definition task.