Miracle-dz/UniFAR-FTUs huggingface dataset:
Physical properties of galaxies and their evolution in the VIMOS VLT Deep Survey - I. The evolution of the mass-metallicity relation up to z ~ 0.9

We derive the mass-metallicity relation of star-forming galaxies up to $z\sim0.9$, using data from the VIMOS VLT Deep Survey. Automatic measurement of emission-line fluxes and equivalent widths have been performed on the full spectroscopic sample. This sample is divided into two sub-samples depending on the apparent magnitude selection: wide ($I_{\mathrm{AB}}<22.5$) and deep $I_{\mathrm{AB}}<24$). These two samples span two different ranges of stellar masses. Emission-line galaxies have been separated into star-forming galaxies and active galactic nuclei using emission line ratios. For the star-forming galaxies the emission line ratios have also been used to estimate gas-phase oxygen abundance, using empirical calibrations renormalized in order to give consistent results at low and high redshifts. The stellar masses have been estimated by fitting the whole spectral energy distributions with a set of stellar population synthesis models. We assume at first order that the shape of the mass-metallicity relation remains constant with redshift. Then we find a stronger metallicity evolution in the wide sample as compared to the deep sample. We thus conclude that the mass-metallicity relation is flatter at higher redshift. The observed flattening of the mass-metallicity relation at high redshift is analyzed as an evidence in favor of the open-closed model.
University of Birmingham Measurement of CP asymmetries in two-body B (s)0 -meson decays to charged pions and kaons

The time-dependent CP asymmetries in B 0 → π þ π − and B 0 s → K þ K − decays are measured using a data sample of p p collisions corresponding to an integrated luminosity of 3 . 0 fb − 1 , collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV. The same data sample is used to measure the time-integrated CP asymmetries in B 0 → K þ π − and B 0 s → π þ K − decays. The results are C π þ π − ¼ − 0 . 34 (cid:2) 0 . 06 (cid:2) 0 . 01 , S π þ π − ¼ − 0 . 63 (cid:2) 0 . 05 (cid:2) 0 . 01 , C K þ K − ¼ 0 . 20 (cid:2) 0 . 06 (cid:2) 0 . 02 , S K þ K − ¼ 0 . 18 (cid:2) 0 . 06 (cid:2) 0 . 02 , A ΔΓ K þ K − ¼ − 0 . 79 (cid:2) 0 . 07 (cid:2) 0 . 10 , A B 0 CP ¼ − 0 . 084 (cid:2) 0 . 004 (cid:2) 0 . 003 , and A B 0 s CP ¼ 0 . 213 (cid:2) 0 . 015 (cid:2) 0 . 007 , where the first uncertainties are statistical and the second systematic. Evidence for CP violation is found in the B 0 s → K þ K − decay for the first time.
In vitro fermentation, digestibility and methane production of tropical perennial grass species

Abstract. This study characterised 16 tropical perennial grass species in terms of in vitro methane output and related their digestibility and rumen fermentation with methane output. The grass samples were collected, dried in a forced oven, and ground and analysed for nutrient composition. In vitro gas production and organic matter digestibility (IVOMD) were determined using rumen fluid collected, strained and anaerobically prepared. A semi-automated system was used to measure gas production through in vitro incubation at 39°C. Anthephora argentea and Stipagrostis ciliate produced the highest concentration of methane in terms of g kg–1 digestible dry matter (DDM) and g kg–1 digestible organic matter (IVOMD). Cenchrus ciliaris, Setaria verticillata and Panicum coloratum produced the lowest (P < 0.05) methane when expressed in terms of g kg–1 DDM and g kg–1 IVOMD. Ash, ether extract, non-fibrous carbohydrate, neutral and acid detergent insoluble nitrogen, and crude protein were negatively correlated with methane production. Methane production positively correlated with neutral and acid detergent fibre, cellulose and hemicellulose. It is important to focus on screening and selecting perennial grass with higher nitrogen content and low methane production to mitigate methane production under tropical conditions.
Characterization of South American Educational Web Domains

The aim of this work is to characterize the educational web domains of Argentina, Bolivia, Chile, Paraguay, Peru and Uruguay. For this purpose, a sample of each information domain was collected using an automatic crawling tool. These domains were later analyzed according to different aspects of their contents, links and technologies in order to determine differences and similarities from their most representative parameters. From this study we can derive some interesting facts: a) the amount of contents in all the countries has increased over the last year, b) it is necessary to increase the ranking of pages in educational domains, especially by providing incoming links from intra-domains, as we found a high percentage of pages with zero in-degree, and c) new technologies are needed to manage dynamic pages within educational institutions.
Synthesizing high-dimensional, agent-based transport demand data from two-dimensional aggregates with iterative multiple histogram matching

Big data sources such as transit smart card and cellular phone data records are well-suited to agent-based transport planning as they expose the revealed travel demand of a large number of individuals in a city. However, due to privacy concerns, access to these data sources is carefully controlled, and research is difficult to replicate and validate. Authorities are generally more amenable to releasing data summaries in aggregate form, where no single individual’s travel pattern can be discerned. This paper explores iterative histogram matching as a possible way to construct a surrogate data set that displays a similar joint distribution as the original big data source. It takes as its input a set of two-dimensional histograms in principal component and original variable space, recorded at a resolution where no individual is exposed. Initial results show that the method is capable of producing a surrogate data set with a similar speed distribution and fine-grained origin-destination patterns as was contained in the original dataset of transit smart card records recorded for a weekday in 2011 in Singapore.
WORKSHOPS OF THE SOO (2008 HAVRE). SYMPOSIUM: MASSIVE ROTATOR CUFF TEARS IN PATIENTS YOUNGER THAN 65 YEARS Massive rotator cuff tears in patients younger than 65 years. Epidemiology and characteristics

a Orthopaedics 1, Trousseau University Hospital Center, 37044 Tours cedex 9, France b Saint-Grégoire Private Hospital Center, 6, boulevard Boutière, 35768 Saint-Grégoire cedex, France c Mutualist Clinic ‘‘La Sagesse’’, 4, pl Saint-Guénolé, 35043 Rennes cedex, France d 1, boulevard Alfred-Nobel, 37540 Saint-Cyr—Loire, France e Charles-Nicolle-Félix Hospital, Rouen University Hospital Center, Dèvé-Pavillon, 76031 Rouen cedex, France f François 1er Clinic, 132, boulevard François 1er, 76600 Le-Havre, France
Electricity Demand in MENA Countries: A Panel Cointegration Analysis

Abstract In this study, we applied recently developed panel unit root and cointegration techniques to examine the long-run real income per capita and price elasticities for demand of electricity in selected Middle East and North African (MENA) countries using an annual data series from 1990 to 2011.Our main finding from the panel analysis is that the demand for electricity is highly price elastic and slightly income elastic in the long run for MENA countries. Our findings are consistent with the argument that the demand for electricity in the MENA countries is affected largely by strong economic growth.
In vitro cytotoxicity evaluation of thiourea derivatives bearing Salix sp. constituent against HK-1 cell lines

Abstract In searching for drugs from natural product scaffolds has gained interest among researchers. In this study, a series of twelve halogenated thiourea (ATX 1-12) via chemical modification of aspirin (a natural product derivative) and evaluated for cytotoxic activity against nasopharyngeal carcinoma (NPC) cell lines, HK-1 via MTS-based colorimetric assay. The cytotoxicity studies demonstrated that halogens at meta position of ATX showed promising activity against HK-1 cells (IC50 value ≤15 µM) in comparison to cisplatin, a positive cytotoxic drug (IC50 value =8.9 ± 1.9 µM). ATX 11, bearing iodine at meta position, showed robust cytotoxicity against HK-1 cells with an IC50 value of 4.7 ± 0.7 µM. Molecular docking interactions between ATX 11 and cyclooxygenase-2 demonstrated a robust binding affinity value of −8.1 kcal/mol as compared to aspirin’s binding affinity value of −6.4 kcal/mol. The findings represent a promising lead molecule from natural product with excellent cytotoxic activity against NPC cell lines. Graphical Abstract
Testing for super-exogeneity in the presence of common deterministic shifts

This paper introduces the concept of common deterministic shifts (CDS). This concept is simple, intuitive and relates to the common structure of shifts or policy interventions. We propose a Reduced Rank technique to investigate the presence of CDS. The proposed testing procedure has standard asymptotics and good small-sample properties. We further link the concept of CDS to that of super-exogeneity. It is shown that CDS tests can be constructed which allow to test for super-exogeneity. The Monte Carlo evidence indicates that the CDS test for super-exogeneity dominates testing procedures proposed in the literature.
Long-term mean annual microphytobenthos chlorophyll a variation correlates with air temperature

Long-term interannual variations in the mean microphytobenthos chlorophyll a (chl a) of the Ems estuary were investigated. Concentrations in the 1990s were on average 1.5 times higher than during the period from 1976 to 1978, but a trend in chl a over the entire period (1976 to 1999) was not found. In agreement with findings from the late 1970s, the mean chl a concentrations over the post 1990 period correlated significantly with the station elevation related exposure time. Over the entire 1976 to 1999 study period, the estuary mean annual chl a concen- trations correlated strongly and significantly with the mean annual air temperature. Although the range of the variation in the mean annual air temperature of the studied years was only 7.5 to 10.2°C, it surprisingly corresponded with a ca. 2.5-fold variation in the mean annual microphyto- benthos chl a. In addition to chl a, mean monthly C:chl a ratios from 1976 to 1977 also correlated positively with changes in temperature. Microphytobenthos carbon biomass (chl a × (C:chl a)) may, therefore, respond even stronger to air temperature than chl a does. The correlations are most likely a combination of direct temperature effects on microphytobenthos and stronger, prob- ably complex, indirect temperature effects on the seasonal development and standing stock of young and adult grazers (bivalves) and their carnivores like the brown shrimp Crangon crangon.
Capital structure and stock returns: evidence from an emerging market with unique financing arrangements

We investigate capital structure dynamics in a unique financing environment where (1) we avoid the complex tax environments faced by previous studies and where (2) firms rely primarily on bank loans rather than the public debt market. Consistent with recent empirical evidence, we find that stock returns are a first-order determinant of capital structure. Firms show some tendency to rebalance towards their target capital structure. However, the impact of stock returns dominates the effects of rebalancing. We also find that firm's stock returns induce some corporate issuing activity, and managers use issuing activity to counteract some of the mechanistic effects of stock returns.
Towards ABAC Policy Mining from Logs with Deep Learning

Protection of sensitive information in platforms such as the ones offered by smart cities requires careful enforcement of access control rules that denote " who can/cannot access to what under which circumstances ". In this paper, we propose our ongoing work on the development of a deep learning technique to infer policies from logs. Our proposal improves the state-of-the-art by supporting negative authorizations (i.e. denied access requests) and different types of noise in logs. A preliminary evaluation of the proposed technique is also presented in the paper.
Human-Assisted Agent for Sequential Decision-Making

Many real-world sequential decision-making settings involve human agents who make decisions having access to information that may be unavailable to artificial, automated systems. Standard reinforcement learning (RL) methods do not usually model human behavior and, almost invariably, attempt to fully replace the human component with a fully automated agent, which we call human-replacing agent (HR agent). In this paper, we propose the human-assisted agent (HA agent), which takes the natural agent’s decision x′ as a suggestion to decide a new treatment x maximizing the target outcome – that is, what the target outcome would have been, counterfactually, had the treatment been X = x, given that in fact X = x′. A proper causal language is required to support this mode of reasoning and allow valid counterfactual inference. We model this decision-making setting using the language of structural causal models [Pearl, 2000] and formulate the HA agent in counterfactual semantics. We identify a general class of SCMs where an HA agent can leverage MDP machinery and find a strategy that provably dominates previously known strategies, including HR-based ones. When the (counterfactual) Markov property does not hold, we equip the HA agent with an augmented POMDP capability. We further characterize the conditions under which natural agents’ decisions do not offer valuable information to the task, which means that the performance of HA and HR agents coincide and autonomy can be reached. CCS Concepts •Computing methodologies → Causal reasoning and diagnostics;
The Effects of Authenticity Cues on Purchase Intention and Overall Brand Rating, depending on Desire for Control

The Effects of Authenticity Cues on Purchase Intention and Overall Brand Rating, depending on Desire for Control Han Gie Sie, BSc. (0015830) Date: 13 November 2011 Place: Utrecht, the Netherlands Corresponding email address: guy@guysie.nl Advisor: Dr. Ir. Peter W. de Vries University of Twente Co-Advisor: Dr. Thomas J.L. van Rompay University of Twente
Does low yield heterosis limit commercial hybrids in wheat

Heterosis has contributed to productivity gains in several crops like maize, rice, sorghum, cotton etc. Wheat breeders have largely been unsuccessful to take advantage from this technology at commercial level. Lack of commercial level yield heterosis is regarded as a major reason for this failure as compared to other technical barriers like difficult pollination control and seed production. The allopolyploidy nature of wheat endows even wheat purelines with a fixed intergenomic heterosis which perhaps is the foremost reason for lack of classical yield heterosis in wheat. The coming together of three diverse but functionally similar genomes causes differential gene expression among several other outcomes and leads to a diploid behaving self-sustaining intergenomic hybrid. A long history of highly successful pureline breeding and shortage of nicking parents are other two reasons responsible for failure to realize commercial level heterosis in wheat. Molecular biology tools now make it possible to dissect the phenomenon of heterosis into detectable Mendelian factors to tailor nicking parents to develop commercially sustainable wheat hybrids. This review probes the reasons for the absence of commercial-scale heterosis in wheat.
Robustness of Spatial Databases against Intentional Attacks and Random Errors

Demands on the quality and reliability of volunteered geographic information have increased because of its rising popularity. Due to the less controlled data entry, there is a risk that people provide false or inaccurate information to the database. One factor that affects the effect of such updates is the structure of the database schema, which in this paper is described by network models. By analyzing GIS data models, we have found that their class diagrams have small-world properties and long-tailed distributions. Moreover, an analysis of the error and attack tolerance showed that the data models were robust against random errors but very fragile against attacks. In a network structure perspective, these results indicate that false updates on random tables of a database should usually do little harm, but falsely updating the most central cells or tables might cause big damage. Consequently, it may be necessary to monitor and constrain sensitive cells and tables in order to protect them from attacks.
Role of Bacterial Treatments for Upgrading Nutritive Value of Bean Straw and Native Goats Performance

Twenty baladi kids (16.20 ±0.52 kg; four months age) were divided into four equal groups (five animals each). The animals were randomly assigned using a complete randomize design to receive one of the four rations for 90 days. All animals fed 50% concentrate feed mixture plus one of the roughages as follows: 50% rice straw (R1), 50% untreated bean straw (R2), 50% bean straw treated with Bacillus sp. (R3) and 50% bean straw treated with Ruminococcus albus (R4). Four digestion trails were carried out using metabolic cages to determine nutrients digestibility and feeding values. In addition, some rumen and blood parameters of experimental rations were determined. Data obtained revealed that treated bean straw with Ruminococcus albus (R4) was the highest CP and the lowest value of CF, ADF, ADL and cellulose. No significant differences were observed in total dry matter intake DMI (kg/ h/d) among R2, R3 and R4. Total gain, average daily gain (ADG) and feed efficiency (kg gain/kg DMI) were significantly (P<0.05) higher for R4 and R3 followed with R2 then R1. Bean straw treated with Bacillus sp. Or Ruminococcus albus had significantly (P<0.05) higher digestibilities of OM, CP, CF, EE, NFE, NDF, ADF and cellulose % than bean straw without treatment (R1) or control ration (R1). Total digestible nutrient (TDN) and digestible crude protein (DCP) had significantly (P<0.05) higher values for R4 (67.76% and 10.32%) and R3 (66.88% and 10.05%) than those of R2 (63.55% and 7.28%) then R1 (62.15% and 5.36%), respectively. Total volatile fatty acids (TVFA's) mean value and blood total protein for R4 was significantly higher (12.97 m.equ./100ml and 12.07 mg/100ml, respectively) than that of R3 then R2, and the lowest value was observed with R1. Further more, rumen ammonia NH3-N (13.95mg/100ml) and blood plasma urea (10.63 mg/100ml) were recorded significant higher values (P<0.05) for R4 and R3 than those of R2 and R1, while creatinine had no significant differences among all treatments. It was concluded that treatment of 50% bean straw treated with bacteria (Ruminococcus or Bacillus) improved its nutrient digestibility, ADG, and feed efficiency. (Abd El-Galil, Etab, R. and Ebtehag, I. M. Abou-Elenin. Role of Bacterial Treatments for Upgrading Nutritive Value of Bean Straw and Native Goats Performance. Journal of American Science 2011;7(5):502-510). (ISSN: 1545-1003). http://www.americanscience. org.
Joining a Monetary Union: Stabilisation Costs Versus Stabilisation Bias

Currency union participation may create a welfare tradeoff relating to monetary factors. Stabilisation costs arise from asymmetric shocks across the union. Countries pursuing discretionary national monetary policies benefit from a committed common central bank, which eliminates Svensson’s(1997) stabilisation bias. Currency union membership is favoured by greater price stability focus and commitment of the common central bank, nominal flexibility, and business cycle synchronisation. Monetary union stabilisation performance also improves with lower variability and persistence of cost-push shocks – the latter feature being detectable only for persistence. The degree of monetary policy robustness to parameter uncertainty has somewhat less clear-cut implications.
Multi-type Noise Removal in Lead Frame Image Using Enhanced Hybrid Median Filter

Image filtering technique plays a very important role in digital image processing. It is one of the major steps in image enhancement and restoration. This filtering technique can remove noise and preserve the details of the image for feature extraction processes. However, filtering process can still be considered as a huge challenge for image filtering technique. Common noises in the image such as Salt & Pepper, Gaussian, Speckle, and Poisson Noise are still posing problems in filtering process where the quality and the originality of the images can be degraded and disturbed. Meanwhile, a single filtering technique is usually fit to deal with only certain specific noise. This paper presents an enhanced Hybrid Median Filter (H6F) technique to improve image filtering process. The technique involves 3x3 sub-mask and determination of new pixel value from the median value of the three steps which are the median calculation of ‘+’-neighbours, median calculation of all sub-masks and selection of centre pixel value. The H6F technique has been computed on lead frame inspection system. The results have shown that the technique has been able to remove multi-type of noises efficiently and produce exceptionally low Mean-Square Error (MSE) while consuming the acceptable amount of execution time when compared to other filtering techniques.
Isolation and bioactivity of endophytic filamentous actinobacteria from tropical medicinal plants

Endophytic microorganisms are rich sources for drug discovery. Isolation of actinomycetes from the surface-sterilized tissues of 12 medicinal plants in Hainan, China, was carried out using different media of American Type Culture Collection (ATCC) 172 agar, Gauze’s No. 2 agar, glucose-asparagine agar, humic acid-vitamin agar, and starch-casein-mineral salts agar. Of the 280 isolates recovered, 154 were from roots, 73 from stems and 53 from leaves. Bioactivity test of crude fermentation extracts were performed on all the isolates. About 41.1% of the extracts showed activity against liver cancer cell SMMC-7721, 19.3% against Candida albicans ATCC10231, and 10.0% against Staphylococcus aureus ATCC 51650. In addition, metabolites of nine isolates inhibited caspase 3, a protein related to neurodegenerative diseases, and three inhibited protein tyrosine phosphatase 1B (PTP1B), a protein related to diabetes. Based on their phenotypic and genotypic characteristics, endophytic actinomycetes were classified to actinobacterial genera including Streptomyces , Micromonospora , Nocardia, Nonomuraea and Amycolatopsis spp. The high bioactivity percentage, broad bioactivities and the novel taxa of the isolated endophytic actinomycetes presented their potential in pharmaceutical utilization. Key words: Filamentous actinomycetes, medicinal plants, antimicrobial activity, anti-tumor cell activity, protein tyrosine phosphatase 1B, caspase 3.
Profile, antioxidant potential, and applicability of phenolic compounds extracted from Spirulina platensis

This work aimed at an investigation of the profile of free phenolic compounds (PC) of Spirulina platensis and assesses their antioxidant potential, applying them as a natural conservative in minimally processed apples. The phenolic extract showed 396 &µg g -1 gallic acid, 347 µg g -1 of caffeic acid, 54 µg g -1 salicylic acid and 3.5 µg g -1 trans -1 -cinmamic a total of 608 µg PC g -1 of S. platensis. With the use of PC, it was possible to inhibit the radical DPPH over 180 min with IC 50 of PC 202 µg mL -1 . The inhibition of polyphenol oxidase and peroxidase of PC were 19.9 and 9.7%. In addition, verifying the constants Km and Vmax, it was concluded that inhibition of the peroxidase and polyphenol occurs in an uncompetitive manner. Application of crude extract of PC under minimally processed apples showed inhibition of browning by 40%. The general acceptance of apples was not affected by the addition of PC. Key words : Apple, enzymatic browning, peroxidase, phenols, polyphenol oxidase.