Miracle-dz/UniFAR-FTUs huggingface dataset:
Prediction of Virality Timing Using Cascades in Social Media

Predicting content going viral in social networks is attractive for viral marketing, advertisement, entertainment, and other applications, but it remains a challenge in the big data era today. Previous works mainly focus on predicting the possible popularity of content rather than the timing of reaching such popularity. This work proposes a novel yet practical iterative algorithm to predict virality timing, in which the correlation between the timing and growth of content popularity is captured by using its own big data naturally generated from users’ sharing. Such data is not only able to correlate the dynamics and associated timings in social cascades of viral content but also can be useful to self-correct the predicted timing against the actual timing of the virality in each iterative prediction. The proposed prediction algorithm is verified by datasets from two popular social networks—Twitter and Digg—as well as two synthesized datasets with extreme network densities and infection rates. With about 50% of the required content virality data available (i.e., halfway before reaching its actual virality timing), the error of the predicted timing is proven to be bounded within a 40% deviation from the actual timing. To the best of our knowledge, this is the first work that predicts content virality timing iteratively by capturing social cascades dynamics.
Effect of HD-03--a herbal formulation in galactosamine-induced hepatopathy in rats.

The effect of HD-03 a herbal preparation was studied on galactosamine (400 mg/kg b.wt., i.p.) induced hepatotoxicity in rats. Animals were pre-treated for 14 days with HD-03 and compared against untreated group for SGPT, SGOT, serum bilirubin and liver glycogen. Histopathology of liver lobes was considered to evaluate the extent of hepatic injury induced by galactosamine. These were reversed by HD-03 pre-treatment. HD-03 provided convincing evidence of hepatoprotection against galactosamine induced hapatotoxicity.
Quantitative Studies of the Far-Ultraviolet, Ultraviolet, and Optical Spectra of Late O- and Early B-Type Supergiants in the Magellanic Clouds

We present quantitative studies of eight late O- and early B-type supergiants in the Magellanic Clouds using far-ultraviolet Far Ultraviolet Spectroscopic Explorer, ultraviolet International Ultraviolet Explorer/Hubble Space Telescope, and optical VLT-UVES spectroscopy. Temperatures, mass-loss rates, and CNO abundances are obtained using the non-LTE, spherical, line-blanketed model atmosphere code of Hillier & Miller. We support recent results for lower temperatures of OB-type supergiants as a result of stellar winds and blanketing, which amounts to ~2000 K at B0 Ia. In general, Hα-derived mass-loss rates are consistent with UV and far-UV spectroscopy, although from consideration of the S IV λλ1063, 1073 doublet, clumped winds are preferred over homogenous models. AV 235 (B0 Iaw) is a notable exception, which has an unusually strong Hα profile that is inconsistent with the other Balmer lines and UV wind diagnostics. We also derive CNO abundances for our sample, revealing substantial nitrogen enrichment, with carbon and oxygen depletion. Our results are supported by comparison with the Galactic supergiant HD 2905 (BC0.7 Ia) for which near-solar CNO abundances are obtained. This bolsters previous suggestions that "normal" OB-type supergiants exhibit atmospheric compositions indicative of partial CNO processing.
Controlled Release of Ropinirole Hydrochloride from a Multiple Barrier Layer Tablet Dosage Form: Effect of Polymer Type on Pharmacokinetics and IVIVC

The purpose of the present study was to control in vitro burst effect of the highly water-soluble drug, ropinirole hydrochloride to reduce in vivo dose dumping and to establish in vitro–in vivo correlation. The pharmacokinetics of two entirely different tablet formulation technologies is also explored in this study. For pharmacokinetics study, FDA recommends at least 10% difference in drug release for formulations to be studied but here a different approach was adopted. The formulations F8A and F9A having similar dissolution profiles among themselves and with Requip® XL™ (f2 value 72, 77, 71 respectively) were evaluated. The Cmax of formulation F8A comprising hypromellose 100,000 cP was 1005.16 pg/ml as compared to 973.70 pg/ml of formulation F9A comprising hypromellose 4000 cP irrespective of Tmax of 5 and 5.75 h, respectively. The difference in release and extent of absorption in vivo was due to synergistic effect of complex RH release mechanism; however, AUC0–t and AUC0–∞ values were comparable. The level A correlation using the Wagner–Nelson method supported the findings where R2 was 0.7597 and 0.9675 respectively for formulation F8A and F9A. Thus, in vivo studies are required for proving the therapeutic equivalency of different formulation technologies even though f2 ≥ 50. The technology was demonstrated effectively at industrial manufacturing scale of 200,000 tablets.
Localizing antithrombotic and vasodilatory activity with a novel, ultrafast nitric oxide donor.

Reaction of nitric oxide (NO) with L-proline in methanolic sodium methoxide yields a diazeniumdiolate product, C5H7N3O4Na2.CH3OH (PROLI/NO), that can be stabilized in basic solution but that dissociates to proline (1 mol) and NO (2 mol) with a half-life of only 1.8 s at pH 7.4 and 37 degrees C. This kinetic behavior has allowed the generation of highly localized antiplatelet and vasodilatory effects. By infusing solutions containing 4 microM PROLI/NO in 0.1 M sodium hydroxide at the rate of 1 nmol.min-1 immediately upstream from a polyester vascular graft in the unheparinized baboon circulatory system, for example, platelet deposition at the normally thrombogenic graft surface was substantially reduced relative to controls receiving only 0.1 M sodium hydroxide. In a second study, infusion of PROLI/NO into the right atrium of sheep with induced pulmonary hypertension selectively dilalated the lung vasculature, dose-dependently reducing the pulmonary arterial pressure by as much as 9 mmHg with no observable effect on the systemic arterial pressure at an infusion rate of up to 24 nmol.kg-1.min-1. PROLI/NO could also be formulated as an insoluble polymer blend that released NO smoothly for prolonged periods. The results suggest that localized delivery of diazeniumdiolates such as PROLI/NO which generate NO with extreme rapidity on entering the blood stream may hold considerable promise for inhibition of thrombus formation, selective dilation of the vasculature, and other research and clinical applications.
Interaction system of mechatrnics-system embedded building blocks (“mechatro-tsumiki”)

We have developed a kind of building block named “mechatro-tsumiki”, made of wooden material in which a mechatronics system is embedded. The mechatronics system can make the “mechatro-tsumiki” blocks show various reactions against player's operation such as rotating, stacking, and line-up, and also can make the blocks interact with each other. Using three types of “mechatro-tsumiki” blocks, some applications are demonstrated in this study.
Feasibility trial of partial breast irradiation with concurrent dose-dense doxorubicin and cyclophosphamide in early-stage breast cancer.

PURPOSE Anthracyclines and concurrent whole-breast irradiation result in prohibitive cutaneous toxicity. We hypothesized that anthracycline-based chemotherapy and concurrent partial breast irradiation (PBI) is safe and conducted a single-arm feasibility trial testing this hypothesis with dose-dense doxorubicin and cyclophosphamide (ddAC). PATIENTS AND METHODS Women with T1-2, N0-1 breast cancer with > or = 3 mm lumpectomy margins received PBI (40.5 Gy, 15 daily 2.7-Gy fractions) concurrently with the first two of four cycles of ddAC (60 and 600 mg/m2 of doxorubicin and cyclophosphamide, respectively, every 14 days with colony-stimulating support). Primary end points were local and systemic toxicity. Additional systemic therapy was given at the physician's discretion. RESULTS Twenty-seven patients enrolled between November 2004 and January 2007, but two patients did not receive protocol therapy (one found with additional local disease and one withdrew consent). Twenty-five women completed all planned PBI. Four (16%) of 25 did not complete all ddAC (febrile neutropenia [FN], n = 2; diverticulitis and neutropenia, n = 1; and social/economic reasons, n = 1). Four among the remaining 21 who completed all ddAC had a cycle delayed (FN, n = 1; acute respiratory illness, n = 1; foot blisters, n = 1; perianal dermatitis, n = 1). There was no grade 3 to 4 anemia or thrombocytopenia. Grade 3 nonhematologic toxicities (none grade 4) occurred in 28% (seven of 25) of patients (nausea/vomiting, n = 3; stomatitis, n = 2; contralateral breast abscess, n = 1; fatigue, n = 1; and cough/bronchospasms, n = 1). The observed rate of > or = grade 2 skin toxicity was 0% (0 of 25; one-sided 95% CI, 0% to 11%). CONCLUSION PBI with concurrent ddAC is feasible, and local/systemic toxicity is acceptable. Larger studies are warranted to assess long-term locoregional control and late toxicities.
Detection of Potentially Dangerous Situations involving Crowds using Image Processing

The timely detection of potentially dangerous situations involving crowds in public transport sites is vital to improve the safety and confidence of the travelling public. Conventional CCTV systems are monitored manually so that a single observer is typically responsible for looking at 20 or more cameras at a time. Thus, important events might be missed or detected too late for effective action. The paper presents some methods to detect situations of interest using automated image processing. These methods have been verified with an extensive set of video recordings made in a major underground railway station in London (UK).
Towards fine grained human behaviour simulation models

Agent based simulation modelers have found it difficult to build grounded fine grained simulation models of human behavior. By grounded we mean that the model elements must rest on valid observations of the real world, by fine grained we mean the ability to factor in multiple dimensions of behavior such as personality, affect and stress. In this paper, we present a set of guidelines to build such models that use fragments of behavior mined from past literature in the social sciences as well as behavioral studies conducted in the field. The behavior fragments serve as the building blocks to compose grounded fine grained behavior models. The models can be used in simulations for studying the dynamics of any set of behavioral dimensions in some situation of interest. These guidelines are a result of our experience with creating a fine grained simulation model of a support services organization.
Response-based Learning for Grounded Machine Translation

We propose a novel learning approach for statistical machine translation (SMT) that allows to extract supervision signals for structured learning from an extrinsic response to a translation input. We show how to generate responses by grounding SMT in the task of executing a semantic parse of a translated query against a database. Experiments on the GEOQUERY database show an improvement of about 6 points in F1-score for responsebased learning over learning from references only on returning the correct answer from a semantic parse of a translated query. In general, our approach alleviates the dependency on human reference translations and solves the reachability problem in structured learning for SMT.
Comparison of Various Niches for Endothelial Progenitor Cell Therapy on Ischemic Myocardial Repair: Coexistence of Host Collateralization and Akt-Mediated Angiogenesis Produces a Superior Microenvironment

Objective—Comparative studies are lacking that show the effects of different microenvironments on the activity of engrafted stem cells after myocardial infarction (MI). Here, we analyzed the temporal and spatial variations of angiogenesis, collateralization, and the expression of Akt-related signals after MI to test whether the effects of endothelial progenitor cells (EPCs) were different. Methods and Results—After the induction of MI, pigs were selected that did not develop a collateral coronary circulation (R0) or developed a significant collateral coronary circulation (R2). Both sets were allocated randomly to 4 groups: phosphate-buffered saline (intramyocardial injection of phosphate-buffered saline), EPC transplantation, LY294002 (intramyocardial injection of an Akt inhibitor), and EPCs plus LY294002. Infarcted porcine hearts at different time points and under different collateralized conditions exhibited a variety of vascular microenvironments. At 14 days post-MI, angiogenesis and the expression of Akt-mediated angiogenic cytokines predominated in R2 porcine hearts. When grafted into this microenvironment, EPCs induced the greatest effects in impeding the development of heart failure, preserving left ventricular function and dimensions, and inhibiting infarct expansion. LY294002 significantly reduced these effects. Conclusion—These findings suggest that the microenvironment that coexists with collateralization and Akt-mediated angiogenesis appears to be more beneficial to cardiac repair induced by EPC therapy than other niches after MI.
Personalized recommender system for event attendees

This paper presents a smart event mobile application prototype featuring beacon-based indoor geolocation, personalized recommendations and automated user interface adaptation. Focus is given here to the recommendation function, which exploits professional social network mining and semantic concept identification. We report its use in real conditions during a conference, discuss the usefulness of recommendations and more precisely the impact of the recommendation features. We can show that through appropriate semantic enrichment the conversion rate increased by factor two and the system was able to introduce previously unseen/unknown items to the users thus enhancing serendipity.
Magnetic and Optical Properties of MN Doped GaN

Abstract : Mn:doped GaN films, a dilute magnetic semiconductor material, are grown on (0001) sapphire substrates by metal organic vapor deposition. Optical properties are investigated by transmission measurements and two absorption bands are found to be dominating the transmission spectra. The first absorption band was at Ev+1.5 eV and was attributed to the formation of a Mn related deep level energy band above the valence band of GaN. The second band extended from 2.0 eV to the bandedge of GaN. Absorption at these bands scaled with thickness and composition of the films. Co-doping of these films by n-type (Si) and p-type dopants (Mg) also greatly enhanced or reduced the absorption at these bands, indicating a change in the Fermi level in the crystal. The magnitude of the saturation magnetization was also a function of the Fermi level, which was probed by transmission measurements. Therefore, a correlation between optical properties and saturation magnetization has been established.
The extreme C-terminal region of kindlin-2 is critical to its regulation of integrin activation

Kindlin-2 (K2), a 4.1R-ezrin-radixin-moesin (FERM) domain adaptor protein, mediates numerous cellular responses, including integrin activation. The C-terminal 15-amino acid sequence of K2 is remarkably conserved across species but is absent in canonical FERM proteins, including talin. In CHO cells expressing integrin αIIbβ3, co-expression of K2 with talin head domain resulted in robust integrin activation, but this co-activation was lost after deletion of as few as seven amino acids from the K2 C terminus. This dependence on the C terminus was also observed in activation of endogenous αIIbβ3 in human erythroleukemia (HEL) cells and β1 integrin activation in macrophage-like RAW264.1 cells. Kindlin-1 (K1) exhibited a similar dependence on its C terminus for integrin activation. Expression of the K2 C terminus as an extension of membrane-anchored P-selectin glycoprotein ligand-1 (PSGL-1) inhibited integrin-dependent cell spreading. Deletion of the K2 C terminus did not affect its binding to the integrin β3 cytoplasmic tail, but combined biochemical and NMR analyses indicated that it can insert into the F2 subdomain. We suggest that this insertion determines the topology of the K2 FERM domain, and its deletion may affect the positioning of the membrane-binding functions of the F2 subdomain and the integrin-binding properties of its F3 subdomain. Free C-terminal peptide can still bind to K2 and displace the endogenous K2 C terminus but may not restore the conformation needed for integrin co-activation. Our findings indicate that the extreme C terminus of K2 is essential for integrin co-activation and highlight the importance of an atypical architecture of the K2 FERM domain in regulating integrin activation.
Atlas of stress-strain curves

Contains over 600 stress-strain curves for ferrous and nonferrous alloys. Curves show monotonic versus cyclic behaviour, effect of strain rate, alloying elements, product forms, deformation mode, grain size, work hardening, temperature, and much, much more. Information is provided on carbon, structural, alloy, HSLA, high-strength heat-resisting, maraging, tool, stainless steels, superalloys, cast irons, aluminum, beryllium, copper, magnesium, nickel, refractory alloys, titanium, zinc, zirconium, miscellaneous alloys, pure metals, and nonmetallic materials. Each curve is titled by standard industrial designations (AISA, CDA, AA, etc.) and thoroughly referenced to the original source to facilitate further research.
Dynamical Movement Primitives: Learning Attractor Models for Motor Behaviors

Nonlinear dynamical systems have been used in many disciplines to model complex behaviors, including biological motor control, robotics, perception, economics, traffic prediction, and neuroscience. While often the unexpected emergent behavior of nonlinear systems is the focus of investigations, it is of equal importance to create goal-directed behavior (e.g., stable locomotion from a system of coupled oscillators under perceptual guidance). Modeling goal-directed behavior with nonlinear systems is, however, rather difficult due to the parameter sensitivity of these systems, their complex phase transitions in response to subtle parameter changes, and the difficulty of analyzing and predicting their long-term behavior; intuition and time-consuming parameter tuning play a major role. This letter presents and reviews dynamical movement primitives, a line of research for modeling attractor behaviors of autonomous nonlinear dynamical systems with the help of statistical learning techniques. The essence of our approach is to start with a simple dynamical system, such as a set of linear differential equations, and transform those into a weakly nonlinear system with prescribed attractor dynamics by means of a learnable autonomous forcing term. Both point attractors and limit cycle attractors of almost arbitrary complexity can be generated. We explain the design principle of our approach and evaluate its properties in several example applications in motor control and robotics.
A Herschel and BIMA study of the sequential star formation near the W 48A H II region

We present the results of Herschel HOBYS (Herschel imaging survey of OB Young Stellar objects) photometric mapping combined with Berkeley Illinois Maryland Association (BIMA) observations and additional archival data, and perform an in-depth study of the evolutionary phases of the star-forming clumps in W 48A and their surroundings. Age estimates for the compact sources were derived from bolometric luminosities and envelope masses, which were obtained from the dust continuum emission, and agree within an order of magnitude with age estimates from molecular line and radio data. The clumps in W 48A are linearly aligned by age (east-old to west-young): we find a ultra-compact (UC) H ii region, a young stellar object (YSO) with class II methanol maser emission, a YSO with a massive outflow and finally the NH_2D prestellar cores from Pillai et al. This remarkable positioning reflects the (star) formation history of the region. We find that it is unlikely that the star formation in the W 48A molecular cloud was triggered by the UC H ii region and discuss the Aquila supershell expansion as a major influence on the evolution of W 48A. We conclude that the combination of Herschel continuum data with interferometric molecular line and radio continuum data is important to derive trustworthy age estimates and interpret the origin of large-scale structures through kinematic information.
Constructing Boosting Algorithms from SVMs: An Application to One-Class Classification

We show via an equivalence of mathematical programs that a support vector (SV) algorithm can be translated into an equivalent boosting-like algorithm and vice versa. We exemplify this translation procedure for a new algorithm: one-class leveraging, starting from the one-class support vector machine (1-SVM). This is a first step toward unsupervised learning in a boosting framework. Building on so-called barrier methods known from the theory of constrained optimization, it returns a function, written as a convex combination of base hypotheses, that characterizes whether a given test point is likely to have been generated from the distribution underlying the training data. Simulations on one-class classification problems demonstrate the usefulness of our approach.
ABOUT THE PERIOD OF BELL NUMBERS MODULO A PRIME

Let p be a prime number. It is known that the order o(r) of a root r of the irreducible polynomial xp−x−1 over Fp divides g(p) = p p−1 p−1 . Samuel Wagstaff recently conjectured that o(r) = g(p) for any prime p. The main object of the paper is to give some subsets S of {1, . , g(p)} that do not contain o(r).
Feasibility of Early Infant Diagnosis of HIV in Resource-Limited Settings: The ANRS 12140-PEDIACAM Study in Cameroon

BACKGROUND Early infant diagnosis (EID) of HIV is a key-point for the implementation of early HAART, associated with lower mortality in HIV-infected infants. We evaluated the EID process of HIV according to national recommendations, in urban areas of Cameroon. METHODS/FINDINGS The ANRS12140-PEDIACAM study is a multisite cohort in which infants born to HIV-infected mothers were included before the 8(th) day of life and followed. Collection of samples for HIV DNA/RNA-PCR was planned at 6 weeks together with routine vaccination. The HIV test result was expected to be available at 10 weeks. A positive or indeterminate test result was confirmed by a second test on a different sample. Systematic HAART was offered to HIV-infected infants identified. The EID process was considered complete if infants were tested and HIV results provided to mothers/family before 7 months of age. During 2007-2009, 1587 mother-infant pairs were included in three referral hospitals; most infants (n = 1423, 89.7%) were tested for HIV, at a median age of 1.5 months (IQR, 1.4-1.6). Among them, 51 (3.6%) were HIV-infected. Overall, 1331 (83.9%) completed the process by returning for the result before 7 months (median age: 2.5 months (IQR, 2.4-3.0)). Incomplete process, that is test not performed, or result of test not provided or provided late to the family, was independently associated with late HIV diagnosis during pregnancy (adjusted odds ratio (aOR) = 1.8, 95%CI: 1.1 to 2.9, p = 0.01), absence of PMTCT prophylaxis (aOR = 2.4, 95%CI: 1.4 to 4.3, p = 0.002), and emergency caesarean section (aOR = 2.5, 95%CI: 1.5 to 4.3, p = 0.001). CONCLUSIONS In urban areas of Cameroon, HIV-infected women diagnosed sufficiently early during pregnancy opt to benefit from EID whatever their socio-economic, marital or disclosure status. Reduction of non optimal diagnosis process should focus on women with late HIV diagnosis during pregnancy especially if they did not receive any PMTCT, or if complications occurred at delivery.