Miracle-dz/UniFAR-FTUs huggingface dataset:
Erratum: Finding a faint polarized signal in wide-band radio data

We present a new algorithm for fitting and classifying polarized radio sources, which is based on the QU fitting method introduced by O’Sullivan et al. and on our analysis of pulsars. Then we test this algorithm using Monte Carlo simulations of observations in the 16 cm band of the Australia Telescope Compact Array (1.3-3.1 GHz), to quantify how often the algorithm identifies the correct source model, how certain it is of this identification, and how the parameters of the injected and fitted models compare. In our analysis we consider the Akaike and Bayesian Information Criteria, and model averaging. For the observing setup we simulated, the Bayesian Information Criterion, without model averaging, is the best way for identifying the correct model and for estimating its parameters. Sources can only be identified correctly if their parameters lie inside a ‘Goldilocks region’: strong depolarization makes it impossible to detect sources that emit over a wide range in RM, whereas sources that emit over a narrow range in RM cannot be told apart from simpler sources or sources that emit at only one RM. We identify when emission at similar RMs is ‘resolved’, and quantify this in a way similar to the Rayleigh criterion in optics. Also, we identify pitfalls in RM synthesis that are avoided by QU fitting. Finally, we show how channel weights can be tweaked to produce apodized RM spectra, that observing time requirements in RM synthesis and QU fitting are the same, and we analyse when to stop RMClean.
Efficiency of Nano-formulations of Neem and Peppermint Oils on the Bionomics and Enzymatic Activities of Agrotis ipsilon Larvae (Lepidoptera: Noctuidae)

Nanotechnology is considered to be a development way to gain efficient and potential approaches towards pest control. The effect of both neem and peppermint oils as bulk, nano and loaded nano-emulsions have been studied against the different biological aspects of the 2nd larval instar of Agrotis ipsilon (Hufn.) under laboratory conditions. Their effects on enzymatic activities were investigated for the 2nd and 4th larval instars. The effects of adding the different formulations of either neem or peppermint oils to artificial diet of 2nd instar larvae show significant elongation of the larval duration; percentage mortalities were increased as well as larval malformations. It was recorded that nano-formulations (emulsion or loaded) significantly decreased the pupal weight and significantly increased the pupal duration, percentage pupal mortalities and pupal malformation. Adult longevity show insignificant effect, while female fecundity and percentage egg fertility show significant decrease in comparison with the control. Results of enzymatic activities show marked effects of the three formulations of either neem or peppermint oil. Significant inhibitions were recorded for amylase, invertase, trehalase, protease and alkaline phosphatase. However, significant increase in the activities of cuticle phenoloxidase and chitinase were recorded. Marked variations were recorded between nano-formulations and the bulk form.
Self-Reflective Practices during Teaching and Learning of an Undergraduate Literacy Module

Abstract This paper is based on a field experience project designed as part of the foundation phase literacy programme. In this project, foundation phase teacher education student-teachers selected a teaching site and a learner or group of learners that they would teach to read in the afternoons and over the weekends. The aim of the project was to offer the teacher education student-teachers an opportunity to put theory into practice using self-reflective strategies that included group and individual reflections on instructional strategies presented in DVDs, reflections on microteaching lessons to the class, and reflections on teaching learners in local schools. During the time that they were working with their learners, they were also expected to confer with other teacher education student-teachers to exchange ideas, strategies and their ‘best practice’ experiences with others. Three distinct stages emerged as student-teachers taught and reflected on their experiences. Student-teachers were initially unsure of their capability of taking on the project. The second stage was that of determination to grapple with the project and the last stage was resolving to take ownership of the project. This paper recommends that projects of this nature are necessary as they allow undergraduate student-teachers opportunities for authentic learning regarding the teaching of reading.
INFLATION INFLUENCE ABOUT INVESTMENT DECISION

In this article, we are dealing with an issue very important as regards theinvestment decision, namely the influence that it has on inflation. Thus, in a brief introductionspotlighted how we have perceived inflation today, what it means and how it manifests itself.An ample space in the paper is dedicated manner of determining the net present value in thepresence of inflation, with an emphasis on the link between the real interest rate, the nominalinterest rate and the inflation rate. To be convincing in our approach we introduced in thelast part of the paper a case study in which we showed how affects inflation on investmentdecisions, in practical way.
Characterization of the gut microbiota in the Anjak (Schizocypris altidorsalis), a native fish species of Iran

The antiquity, diversity and dietary variations among fish species present an exceptional opportunity for understanding the variety and nature of symbioses in vertebrate gut microbial communities. In this study for the first time the composition of the gut bacterial communities in the anjak was surveyed by 16S rRNA gene 454-pyrosequencing. Anjak (Schizocypris altidorsalis), is a native benthopelagic and commercially important fish species in Hamun Lake and Hirmand River system in Sistan basin, Iran. Thirteen 16S rRNA PCR libraries were generated, representing 13 samples of Anjak gut microbiota. After quality filtering, a total of 137 978 read pairs remained from the V3–V6 16S rRNA gene regions, each measuring 680 bp, and were assigned to bacterial OTU’s at a minimum sequence homology of 97%, resulted in total 608 OTUs. The results provided evidence of the presence of a very diverse microbial community present in this fish. The majority of sequences belonged to members of the Firmicutes; however, members of the Proteobacteria, Tenericutes, Bacteroidetes and Cyanobacteria were also well represented in the anjak gut microbiota. The most abundant classes recorded in the samples were uncultured CK-1C4-19 class of Tenericutes, Flavobacteriia, α-Proteobacteria, Erysipelotrichi, Synechococcophycideae, γ-Proteobacteria, and Clostridia. The presence of many different types of bacteria in the anjak is not unexpected since it has been shown that eukaryotes with a detritivorous and planktivorous diet have a higher microbial diversity compared to omnivorous and herbivorous fish species. Many of these microbes might be of high physiological relevance for snow trout and may play key roles in the functioning of a healthy gut in this fish.
Descriptive analysis of Pinot noir juice and wine qualities

approved: Dr. Mina R. McDaniel ' The overall purpose of this study was to develop sensory evaluation methodology whereby wine quality can be predicted from juice quality. Descriptive analysis was used by a trained panel to describe Pinot noir juice and wine from three sources. From each source, one wine and four juice samples (a control and three treatments) were prepared. The following three treatments were applied to the crushed grapes prior to pressing the juice: freezing and thawing; skin contact with 250 ppm Pectinol VR (a pectinase); and skin contact with 250 ppm Rohapect D5L (another pectinase). The trained panel developed descriptive terminology which differed between Pinot noir juice and Pinot noir wine. The juice treatments created subtle, if any, aroma differences. Treatment differences were evident in color, as measured by human perception and by instrumental measurement. Few characteristics of wine aroma and/or color correlated with juice aroma and/or color. Perceived color correlated well with Somer's color density measurement (the sum of the corrected absorbances at 420 and 520 nm.). Some of the same samples were evaluated by a wine industry panel. They appeared to disagree regarding the definition of varietal character. Further research utilizing grapes from many sources is necessary to determine whether Pinot noir wine quality can be predicted from Pinot noir juice quality. Descriptive Analysis of Pinot Noir Juice and Wine Qualities by Nancy Ludwig-Williams A THESIS submitted to Oregon State University in partial fulfillment of the requirements for the degree of Master of Science Completed April 30, 1987 Commencement June 1987
THE BROKEN CHAIN IN CROSS-CULTURAL SOFTWARE DEVELOPMENT: COMMUNICATION, MEDIA CHOICE, AND APPROPRIATION

As globalization increases, globally distributed projects have become more common and while organizations achieve a number of advantages in utilizing offshore labor, conducting such projects is not without risk as project failures are common. It has been identified that a majority of project failures are caused by a failure in communication. We investigate the cross-cultural communication process and how factors such as culture and media are impacting it through the lens of Media Synchronicity Theory. We assess particularly the significance of media capabilities in the choice and appropriation of a medium and the role they have to enable (or suppress) particular communication purposes. We integrate our findings into literature on culture and communication and utilize Hall’s cultural dimensions to derive and test propositions on how culture affects communication through media choice and appropriation. Following Eisenhardt’s approach, we are building theory from case data assuming an inductive approach with the aim of detecting existing relationships between culture, media synchronicity, and communication performance. To achieve that, we develop a communication action chain to help deconstruct a number of communication episodes into separate links and examine the role of expectational differences as source of the communication failure.
LILAC-CROWNED PARROT DIET AND FOOD RESOURCE AVAILABILITY: RESOURCE TRACKING BY A PARROT SEED PREDATOR

Abstract The pattern of food resource availability and use by Lilac-crowned Parrots (Amazona finschi) was evaluated in tropical dry forest of the Reserva de la Biosfera Chamela-Cuixmala, western Mexico. Monthly fruiting phenology transects were conducted throughout the year in deciduous and semi-deciduous forest to determine temporal and spatial variability in resource abundance. Resource use by parrots was evaluated through observations of diet and habitat use. There was significant temporal and spatial variability in food resource abundance, with semi-deciduous forest providing greater food resources for parrots during the dry season, whereas food resource abundance increased in deciduous forest during the rainy season. The critical period of food resource scarcity occurred during May–June at the end of the long dry season. Lilac-crowned Parrots were pre-dispersal seed predators, and exhibited high flexibility in diet, incorporating dietary switching, as well as niche-breadth contraction and expansion, which corresponded with temporal variations in food resource availability. There was low overlap in parrot diets between seasons, with parrots exhibiting a narrow food niche-breadth during the late dry season when resource availability declined. Parrots also demonstrated spatial variation in habitat use, corresponding to fluctuations in the availability of food resources in different habitats. This flexibility in foraging enables parrots to closely track and exploit seed resources which exhibit high temporal and spatial variability in abundance.
The relationship of Wolbachia infection and different phenotypes in the Drosophila melanogaster natural populations from radioactively polluted and clear areas in Ukraine

Aim. The study was performed to investigate the relationship between Wolbachia infection and phenotypes that distinct from wild-type of Drosophila melanogaster from different localities in Ukraine including those from Chornobyl Exclusion Zone during 2013–2014. Methods. We have established isofemale lines from populations: Uman’, Inkerman, Odesa, Varva, Kyiv, Drogobych, Yaniv, Poliske, Chornobyl, and Chornobyl Nuclear Power Plant (NPP). The ambient radiation (µSv/h) was measured in the sample sites. The flies were reared in the laboratory through two generations. We carried out the observation of F2 flies for visibly detectable phenotypes. According to whether the trait was inherited, observations were separated into three categories: with deviations of posterior cross-vein (C2) (incomplete penetrance), visible phenotypic changes (non-inherited) and mutations (inherited). Polymerase chain reaction (PCR) with primers specific to the 16S rRNA and Wolbachia surface protein (wsp) genes were used to determine infection presence in isofemale lines of the flies established for each population. Results. Examination of different phenotypes indicates that the highest mutation rate (but not C2 and not inherited changes) is in populations from Chornobyl Exclusion Zone and, therefore, connection with ambient radiation was detected (p = 0.0241). Generalized mixed linear regression has shown evidence that the presence of phenotypes with defects of C2 vein varies with endosymbiont infection presence (p = 0.03473) in the populations from radioactively polluted areas. Conclusion. Wolbachia is not related to occurring phenotypes neither with phenotypic changes nor with mutations, at least in surveyed populations. However, C2 defected phenotypes relates to the bacterial presence in populations from the contaminated area. Nonetheless, the origin of this relationship is unknown and the mechanisms of such a connection require further research. Keywords: Drosophila melanogaster, Wolbachia, endosymbiont, ambient radiation, mutation, phenotypic change, posterior cross-vein.
A Revised Perspective of Skeletal Stem Cell Biology

Bone-related maladies are a major health burden on modern society. Loss of skeletal integrity and regeneration capacity through aging, obesity, and disease follows from a detrimental shift in bone formation and resorption dynamics. Targeting tissue-resident adult stem cells offers a potentially innovative paradigm in the development of therapeutic strategies against organ dysfunction. While the essential role of skeletal stem cells (SSCs) for development, growth, and maintenance of the skeleton has been generally established, a common consensus on the exact identity and definition of a pure bona fide SSC population remains elusive. The controversies stem from conflicting results between different approaches and criteria for isolation, detection, and functional evaluation; along with the interchangeable usage of the terms SSC and “mesenchymal stromal/stem cell (MSC)”. A great number of prospective bone-forming stem cell populations have been reported with various characteristic markers, often describing overlapping cell populations with widely unexplored heterogeneity, species specificity, and distribution at distinct skeletal sites, bone regions, and microenvironments, thereby creating confusion that may complicate future advances in the field. In this review, we examine the state-of-the-art knowledge of SSC biology and try to establish a common ground for the definition and terminology of specific bone-resident stem cells. We also discuss recent advances in the identification of highly purified SSCs, which will allow detailed interrogation of SSC diversity and regulation at the single-cell level.
A Supervised Central Unit Detector for Spanish Un detector de la unidad central para textos en castellano Kepa Bengoetxea and Mikel Iruskieta IXA Group . University of the Basque Country

In this paper we present the first automatic detector of the Central Unit (CU) for Spanish scientific abstracts based on machine learning techniques. To do so, learning and evaluation data was extracted from the RST Spanish Treebank annotated under the Rhetorical Structure Theory (RST). We use a bag-of-words model based on Naive Bayes and SVM classifiers to detect the central units of a text. Finaly, we evaluate the performance of the classifiers and choose the best to create an automatic CU detector.
Antidepressant-like activity of hydroalcoholic extract of Agaricus blazei in stressed and unstressed mice

The aim of this study was to investigate the antidepressant activity of hydroalcoholic extract Agaricus blazei (273 and 819 mg/kg; orally) in stressed and unstressed Swiss albino mice. Mice were immobilized to induce stress. Fluoxetine 20 mg/kg orally was given to stressed and unstressed animals and immobility time was noted by using forced swim test and tail suspension test. The concentration of plasma nitrite was also evaluated in stressed and unstressed mice. The effect of prazosin (α1-adrenoceptor antagonist), p-CPA (parachlorophenylalanine–tryptophan hydroxylase inhibitor) and 7-nitro-indazole (nNOS inhibitor) on the antidepressant activity of A. blazei was also evaluated. A. blazei and fluoxetine significantly decreased the duration of immobility time in stressed and unstressed mice, showing significant antidepressant activity. No substantial change was found in the locomotor activity. However, a significant reduction in the level of plasma nitrite was also noted in stressed mice. Hydroalcoholic extract showed prominent antidepressant activity in mice.
Modelling and treating GRIN2A developmental and epileptic encephalopathy in mice.

NMDA receptors play crucial roles in excitatory synaptic transmission. Rare variants in GRIN2A encoding the GluN2A subunit are associated with a spectrum of disorders, ranging from mild speech and language delay to intractable neurodevelopmental disorders, including but not limited to developmental and epileptic encephalopathy. A de novo missense variant, p.Ser644Gly, was identified in a child with this disorder, and Grin2a knock-in mice were generated to model and extend understanding of this intractable childhood disease. Homozygous and heterozygous mutant mice exhibited altered hippocampal morphology at 2 weeks of age, and all homozygotes exhibited lethal tonic-clonic seizures by mid-third week. Heterozygous adults displayed susceptibility to induced generalized seizures, hyperactivity, repetitive and reduced anxiety behaviours, plus several unexpected features, including significant resistance to electrically-induced limbic seizures and to pentylenetetrazole induced tonic-clonic seizures. Multielectrode recordings of neuronal networks revealed hyperexcitability and altered bursting and synchronicity. In heterologous cells, mutant receptors had enhanced NMDA receptor agonist potency and slow deactivation following rapid removal of glutamate, as occurs at synapses. NMDA receptor-mediated synaptic currents in heterozygous hippocampal slices also showed a prolonged deactivation time course. Standard antiepileptic drug monotherapy was ineffective in the patient. Introduction of NMDA receptor antagonists was correlated with a decrease in seizure burden. Chronic treatment of homozygous mouse pups with NMDA receptor antagonists significantly delayed the onset of lethal seizures but did not prevent them. These studies illustrate the power of using multiple experimental modalities to model and test therapies for severe neurodevelopmental disorders, while revealing significant biological complexities associated with GRIN2A developmental and epileptic encephalopathy.
Analysis of Stock Price Movement Following Financial News Article Release

What effect does a financial news article have on stock price? To answer this question we investigate stock price movements within the minutes following financial news releases, broken down by media outlet, time of release and article sentiment. Using a Sharpe ratio (a measure for calculating risk-adjusted return) we demonstrated an abnormal return of 1.81 versus a random dataset of -0.06, indicating significant price movement immediately following article release. Second, we found that articles released through WSJ, Reuters – UK Focus, NYT and FT experienced significant positive returns, whereas articles in Barrons, MarketWatch, Forbes and Bloomberg experienced significant negative returns. Third, we found that articles released at certain times of the day had abnormally high price movements associated with them, more so than could be attributed to random chance. Lastly we discovered a minority of positive news articles trending upwards and suddenly reversing direction following a financial news article release. In one particular case there was a several day period where IBM news articles triggered large price declines. We believe these findings could be used by companies as a form of stock price management.
Pricing bonds and CDS in the model with rating migration induced by a Cox process

We investigate the properties of a rating migration process assuming that it is given by subordination of a discrete time Markov chain and a Cox process. The problem of pricing of defaultable bonds with fractional recovery of par value with rating migration and credit default swaps is considered. As an example of applications of our results, we give an explicit solution to the pricing problem in a model with short rate and intensity processes given by the solution of a two-dimensional Ornstein-Uhlenbeck equation with a Lévy noise.
A Review of EFL Arab Learners’ Language: Pitfalls and Pedagogical Implications

Nonetheless, that there are distinguished, qualified, specialized and experienced teachers; in addition to good overall designing and planning; comprehensive and purposive curriculum, integrated textbooks, but the achievement is still below the expectations of all who are concerned with English language teaching in the Arab world. The current study is set out to review kinds of pitfalls encountered by EFL Arab Learners at the tertiary level in the use of the most three problematic syntactic/semantic sub-categories: prepositions, articles and discourse markers, respectively, in their written and oral discourse. The aim is twofold, by reviewing the empirical studies conducted in the last two decades, the study seeks to probe, introduce and report first : the most common kinds of pitfalls Arab undergraduates face in learning English as a foreign/second language. Second : to reveal possible sources and causes lie behind these pitfalls and what insights and pedagogical implications might be offered. Pitfalls were discussed, conclusions had been drawn, implications and future directions were provided at the end. This is followed by practical suggestions to minimize the occurrence of pitfalls in their formal English.
Agents and Factors Evaluation in IT Infrastructures Projects Using TOPSIS Method

As international corporate activities increase and specialization develops, the prevailing competitive relationship in the IT industry is no longer the simple competition between enterprise and enterprise, but becoming the competition among strategic alliances. So the selection of alliance factors has become the most important problem for the IT enterprise in KM strategic alliance to make decisions. Factors' performance decides the effectiveness of the KM strategic alliance and can lead to the success and failure of strategic alliance. The evaluation and selection of appropriate partner is a multi—objective and multi—layer comprehensive problem, and some evaluation factors are subjective. To evaluate the factors objectively, this paper establishes the index system of factors in KM strategic alliance according to BSC index model. In the process of evaluating and selecting factors based on TOPSIS method to standardize the evaluation result so that we can get more objective and effective evaluation result and get the final appropriate partner.