Miracle-dz/UniFAR-FTUs huggingface dataset:
Cairn: Using digital markers to bridge learning communities

Cairn is a proposed geo-social networking mobile application that could help people search for, find, participate in, and tag learning communities, events, and artifacts. The goal of Cairn would be to enable users to find others with whom they can study, attend learning events, and share learning related artifacts, such as museum exhibits or historical markers. The primary target audience would consist of post-secondary students; the secondary target audience would be recent graduates and young professionals. Cairn is proposed to be a native mobile app integrated with existing web-based interest and/or social networks. This paper presents a design exploration, including an overview of the relevant sections of the Information and Communications Technology (ICT) geo-social and learning markets, eight key features identified by focus groups and interviewees, a case informed by user research, and possible directions for prototype development and integration with So.cl.
Mode Suppression in Injection Locked Multi-Mode and Single-Mode Lasers for Optical Demultiplexing

Optical injection locking has been demonstrated as an effective filter for optical communications. These optical filters have advantages over conventional passive filters, as they can be used on active material, allowing them to be monolithically integrated onto an optical circuit. We present an experimental and theoretical study of the optical suppression in injection locked Fabry–Pérot and slotted Fabry–Pérot lasers. We consider both single frequency and optical comb injection. Our model is then used to demonstrate that improving the Q factor of devices increases the suppression obtained when injecting optical combs. We show that increasing the Q factor while fixing the device pump rate relative to threshold causes the locking range of these demultiplexers to asymptotically approach a constant value.
Platelet functional responses and signalling: the molecular relationship. Part 2: receptors.

Small, non-nuclear cells, platelets, are primarily designed to form aggregates when blood vessels are damaged, stopping bleeding. To perform this function, platelets can implement several functional responses induced by various agonists and coordinated by a complex network of intracellular signaling triggered by a dozen of different receptors. This review, the second in a series, describes the known intracellular signaling pathways induced by platelet receptors in response to canonical and rare agonists. Particular focus will be on interaction points and “synergy” of platelet activation pathways and intermediate or “secondary” activation mediators that transmit a signal to functional manifestations.
A retrospective study of metals and stable isotopes in seals from Swedish waters

Concentrations of Hg in Swedish marine systems are generally lower than in fresh watersystems, but still often exceed environmental target levels. As top predators in manymarine food webs, seals are exposed to heavy metals, like Hg and Cd, which are knownto biomagnify with increasing trophic level in the food web. Therefore, studies of Hgconcentrations over time are preferably conducted in relation to seal diet during thesame period. By analysis of naturally occurring stable nitrogen and carbon isotopes it ispossible to determine on which trophic level a certain organism is located and where itfeeds. The aim of the present study was to try to establish background concentrations ofHg and some other metals in Swedish marine waters by analyses of seal bones from the1840s and forward. Stable isotopes were analyzed in order to discover possiblecorrelations between metal concentrations and trophic level, and changes over time indietary intake of metals.No significant change in metal concentrations was seen over time, except for asignificant decrease in Zn concentrations in Baltic Grey seal. A significant difference inδ15N and δ13C values between species and between Baltic and Skagerrak areas wasdiscovered. No significant correlation between δ15N or δ13C values and metals wasfound, however, the seal with the highest δ15N value (Harbor seal) also had the highestHg concentration. Even though the δ15N values suggested an increase over time theincrease was not statistically significant. No statistically significant change over time wasfound in δ13C values.It is important to keep in mind that this study was based on 44 individual seals spreadover 126 years. Data on sex and age was lacking for almost half of the seals, which madestatistical analysis on these parameters difficult to perform. Even though no obvioustrends or differences in metal concentrations between areas and species were seen, theresults from this study can serve as a base for further studies and provide valuableinformation for interpreting the actual contamination load in Swedish marine systems.
Revisión sistemática de literatura: MOOC K-12 y STEAM Systematic literatura review: MOOC K-12 and STEAM

Objective: To identify research works focused on MOOCs K-12 or STEAM, focused on the potential of education environments, reshaping the current educational framework in secondary education. Methodology: Equations were defined to search for articles published in conferences and journals using bibliographic databases, which allowed subtracting the articles to build the corpus of references. Subsequently, the most significant investigations for the development of the systematic review are analyzed and synthesized. Results: This review will identify trends, challenges, and opportunities on MOOC K-12 or STEAM, identifying the implementations of courses in computer science or computational thinking in education. This type of initiative has obtained favorable results since the number of students who select computer programming as a fundamental axis in the national exam for higher education has increased. Conclusions: Most of the research has focused on incorporating programming with complementary courses offered optionally in secondary education, with a combined approach, that is, traditional classes are carried out with the support of MOOCs. Most MOOCs for secondary education have explicitly been implemented to meet the needs of secondary education teachers and students to enhance and support the curriculum and motivate students as future active members in creating technology.
Using GitHub in large software engineering classes. An exploratory case study

ABSTRACT Background and Context GitHub has been recently used in Software Engineering (SE) classes to facilitate collaboration in student team projects as well as help teachers to evaluate the contributions of their students more objectively. Objective We explore the benefits and drawbacks of using GitHub as a means for team collaboration and performance evaluation in large SE classes. Method Our research method takes the form of a case study conducted in a senior level SE class with 91 students. Our study also includes entry and exit surveys, an exit interview, and a qualitative analysis of students’ commit behavior. Findings Different teams adapt GitHub to their workflow differently. Furthermore, despite the steep learning curve, using GitHub should not affect the quality of students’ submissions. However, using GitHub metrics as a proxy for evaluating team performance can be risky. Implications We provide several recommendations for integrating Web-based configuration management tools in SE classes.
Urban expansion assessment by using remotely sensed data and the relative Shannon entropy model in GIS: A case study of Tripoli, Libya

Urban growth is a spatial dynamic phenomenon that indicates population growth, economic expansion, city importance level, and so on. The use of current and historical data in urbanization analysis is necessary in urban spatial studies and future urban planning. This research aims to study, examine, and assess the urban expansion of Tripoli spatially and temporally by using remotely sensed data, geographic information systems (GIS), and the statistical relative Shannon entropy model. Remotely sensed data (four satellite images from 1984, 1996, 2002, and 2010) and GIS were used to determine the extent of urban area and urban growth in Tripoli in five different directions. Shannon’s entropy model was implemented to analyze and assess urban expansion trends as a process and pattern in the study area. Results show that the Tripoli metropolitan area has a high level of sprawl along its urban expansion history. The hypothesis employed for Shannon’s entropy zone division produces good insights on overall urban growth, urban growth direction, and specific urban growth over time. The obtained results provide good guidance for modeling urban sprawl processes, understanding urbanization causative factors, and predicting future urban patterns. Furthermore, the findings of current paper can be used by decision makers and urban planners to identify past and present urban expansions tendencies to prepare for future urban demands.
University of Birmingham Fractional clique decompositions of dense graphs and hypergraphs

Our main result is that every graph G on n ≥ 10 4 r 3 vertices with minimum degree δ ( G ) ≥ (1 − 1 / 10 4 r 3 / 2 ) n has a fractional K r -decomposition. Combining this result with recent work of Barber, K¨uhn, Lo and Osthus leads to the best known minimum degree thresholds for exact (non-fractional) F -decompositions for a wide class of graphs F (including large cliques). For general k -uniform hypergraphs, we give a short argument which shows that there exists a constant c k > 0 such that every k -uniform hypergraph G on n vertices with minimum codegree at least (1 − c k /r 2 k − 1 ) n has a fractional K ( k ) r decomposition, where K ( k ) r is the complete k -uniform hypergraph on r vertices. (Related fractional decomposition results for triangles have been obtained by Dross and for hypergraph cliques by Dukes as well as Yuster.) All the above new results involve purely combinatorial arguments. In particular, this yields a combinatorial proof of Wilson’s theorem that every large F -divisible complete graph has an F -decomposition.
Low pay, in-work poverty and economic vulnerability

As earlier chapters have brought out, the relationship between low pay and poverty is a complex one: low pay for an individual earner may or may not be associated with poverty and disadvantage for the household in which they live (as also brought out in previous studies such as Nolan and Marx, 2000, Gardiner and Millar, 2006, Nolan, 2008, Marx and Verbist, 2008, Gieβelmann and Lohman, 2008). Over and above their individual earnings, household circumstances – most importantly the number of other earners as well as dependents and the social protection and tax systems are central to whether individual low pay means household-level disadvantage. Comparative analysis across countries and over time provides a window into the forces at work and the role of institutions in particular. This chapter sets out findings from such a comparative analysis of low pay and poverty based on EU-SILC, covering the period from before the onset of the Crisis up to 2013 and concentrating on full-time full-year workers.1
Thermoregulation of the North American Mink during Rest and Activity in the Aquatic Environment

Thermoregulation during swimming and resting in water was investigated for the North American mink (Mustela vision, Schreber) in summer and winter pelage by measuring total heat production, heat storage, and minimum thermal conductance. Swimming activity over the range of 0.13-0.60 m·s⁻¹ resulted in heat losses that exceeded metabolic heat production within 5 min of immersion. This imbalance, manifested as a decline in core body temperature (core Tb), resulted in negative levels of heat storage. Negative heat storage for mink was greatest at intermediate swimming speeds. Maximum levels were -14.28 W·kg⁻¹ at 0.29 m·s⁻¹ and -8.72 W·kg⁻¹ at 0.36 m·s⁻¹ for mink in summer and winter pelage, respectively. Thermal conductance determined from cooling curves of carcasses and a taxidermic mount increased linearly with water speed and was comparatively greater at all speeds for animals in summer pelage. Patterns of cooling for carcasses, the taxidermic mount, and swimming mink were similar. In combination with regional heterothermy and elevated heat production, insulation provided by an air layer pervading the fur will permit short bouts of swimming in which Tb is maintained by foraging mink.
Integrated dataset for air travel and reported Zika virus cases in Colombia (Data and Resources Paper)

This open-access dataset provides consistent records of air travel volumes between 205 airport catchments in Colombia and the associated number of reported human cases of Zika virus within these catchments during the arbovirus outbreak between October 2015 and September 2016. We associated in this dataset the monthly air travel volumes provided by the Colombian Civil Aviation Authority (AEROCIVIL) with the reported human cases of Zika Virus published by The Pan American Health Organization (PAHO). Our methodology consists of geocoding all the reported airports and identifying the catchment of each airport using the municipalities' boundaries since reported human cases of Zika Virus are available at the municipal level. In addition, we calculated the total population at risk in each airport catchment by combining the total population count in a catchment with the environmental suitability of the Aedes aegypti mosquito, the vector for the Zika virus. We separated the monthly air travel volumes into domestic and international based on the location of the origin airport. The current dataset includes the total air travel volumes of 23,539,364 passengers on domestic flights and 11,592,197 on international ones. We validated our dataset by comparing the monthly aggregated air travel volumes between airport catchments to those predicted by the gravity model. We hope the novel dataset will provide a resource to researchers studying the role of human mobility in the spread of mosquito-borne diseases and modeling disease spread in realistic networks.
Spinal premotor interneurons controlling antagonistic muscles are spatially 1 intermingled 2

1 Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, 7 University College London, London WC1N 3BG, UK 8 2 Max Delbrück Center for Molecular Medicine (MDC), Roybert-Rössle-Str. 10, 13092 Berlin, 9 Germany 10 3 Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life 11 Sciences, University of Glasgow, West Medical Building, Glasgow G12 8QQ, UK 12 4 Department of Neuroscience Physiology and Pharmacology (NPP), Gower Street, 13 University College London, WC1E 6BT, UK 14 5 Sainsbury Wellcome Centre for Neural Circuits and Behaviour, University College London, 15 London W1T 4JG, UK 16 6 The Salk Institute for Biological Studies, Gene Expression Laboratory, 10010 North Torrey 17 Pines Road, La Jolla CA 92037, USA 18 7 Biological Sciences Graduate Program, University of California, San Diego, 9500 Gilman 19 Drive, La Jolla, CA 92037, USA. 20 8 Howard Hughes Medical Institute and Department of Molecular and Cellular Biology, 21 Center for Brain Science, Harvard University, Cambridge, MA 02138, USA 22
Delft University of Technology Alternative reactions at the interface of glycolysis and citric acid cycle in Saccharomyces cerevisiae

Pyruvate and acetyl-coenzyme A, located at the interface between glycolysis and TCA cycle, are important intermediates in yeast metabolism and key precursors for industrially relevant products. Rational engineering of their supply requires knowledge of compensatory reactions that replace predominant pathways when these are inactivated. This study investigates effects of individual and combined mutations that inactivate the mitochondrial pyruvate-dehydrogenase (PDH) complex, extramitochondrial citrate synthase (Cit2) and mitochondrial CoA-transferase (Ach1) in Saccharomyces cerevisiae. Additionally, strains with a constitutively expressed carnitine shuttle were constructed and analyzed. A predominant role of the PDH complex in linking glycolysis and TCA cycle in glucose-grown batch cultures could be functionally replaced by the combined activity of the cytosolic PDH bypass and Cit2. Strongly impaired growth and a high incidence of respiratory deficiency in pda1 ach1 strains showed that synthesis of intramitochondrial acetyl-CoA as a metabolic precursor requires activity of either the PDH complex or Ach1. Constitutive overexpression of AGP2, HNM1, YAT2, YAT1, CRC1 and CAT2 enabled the carnitine shuttle to efficiently link glycolysis and TCA cycle in l-carnitine-supplemented, glucose-grown batch cultures. Strains in which all known reactions at the glycolysis-TCA cycle interface were inactivated still grew slowly on glucose, indicating additional flexibility at this key metabolic junction.
Entropia e Geração de Séries de Aproximação utilizando uma ferramenta JAVA

– This paper describes an open source tool developed in JAVA programming language which permits to calculate the approximate entropy value of a natural language using texts in digital format. Our tool also automatically generates series of approximations to a natural language either by using n -grams, or by employing Markov sources. The Claude E. Shannon’s results for English were reproduced in order to validate our approach, as well as we obtained results for Portuguese. Our developed tool can help on lessons of Information Theory
Facteurs interlingues et specifiques dans l’acquisition non-guidée de la négation en anglais L2

Cet article retrace l’acquisition de moyens pour exprimer la negation en anglais L2 par un apprenant italophone du corpus ESF : Santo. Cet apprenant a pu etre suivi des les tout premiers stades (« lecte pre-basique ») et son acquisition ralentit fortement a partir du « lecte de base » (Klein & Perdue, 1997). Pour evaluer les resultats de cette etude de cas dans un cadre plus large, on les compare a ceux d’autres italophones acquerant soit l’allemand, soit l’anglais, mais a une vitesse plus rapide que Santo. On evalue l’influence sur le processus d’acquisition de plusieurs facteurs, allant de facteurs d’ordre pragmatique et conceptuel a valeur interlingue, aux particularites des langues 1 et 2 en presence, jusqu’aux aspects « idiosyncrasiques » specifiques a Santo lui-meme. Les resultats montrent que les tout premiers schemas d’enonce acquis sont a attribuer a la comprehension qu’a Santo du concept de la negation et refletent directement la structure semantique exprimee, alors que les specificites des differentes langues n’interviennent que plus tard dans le processus.
Forest fire and biological diversity

Forest fires have many implications for biological diversity.This article showed the effects of forest fires on the forest ecology, the impact of human-induced or severe natural wildfire on plant diversity, effects of fire on forest fauna and effects of suppression of the natural fire regime. In forest where fire is not a natural disturbance, it can have devastating impacts on forest vertebrates and invertebrates, loss of fruit-trees results in overall decline in bird and animal species that rely on fruits for food. Deliberate human suppression of fire can also have direct negative impacts on species. However, not all species suffer from fire. Fire can have positive effects on wildlife populations in boreal forests, where fire is a major natural disturbance mechanism.
electroconvulsive therapy treatment in patients with somatic symptom and related disorders

Objective: Medically unexplained somatic complaints are highly prevalent, and lead to significant impairment and disability. The number of effective treatment modalities for somatic symptom and related disorders (SSDs) or somatoform disorders (SDs) remains limited. To date, there is no formal indication for electroconvulsive therapy (ECT) in SSD or SD. We report on the largest case series to date regarding the effectiveness of ECT in patients with SSD and SD. Methods: A retrospective chart review of all patients treated with an index course of ECT at the Neuropsychiatric Program at the University of British Columbia Hospital from 2000 to 2010 was conducted. The primary outcomes consisted of changes in pseudoneurologic symptoms, pain symptoms, cardiopulmonary symptoms, and gastrointestinal symptoms. Complaints were examined pre- and post-ECT. Results: Twenty-eight participants were included in this study. Twenty-one participants received right unilateral ECT. Six received bifrontal ECT. One received bitemporal ECT. Eighteen of 21 participants reported improvement in pseudoneurologic symptoms; eleven of 14 participants reported improvement in pain symptoms; one participant reported improvement in cardiopulmonary symptoms; and one of two participants reported improvement in gastrointestinal symptoms. This paper discusses the putative mechanism of action of ECT in the treatment of SD/SSD. Conclusion: This retrospective study suggests that ECT could be included as part of the existing treatment for refractory SSD and SD, particularly in refractory cases with comorbid mood disorders.
Preference Reversals : The Impact of Truth-Revealing Incentives

Using data from previously published experiments, we examine how changes in the incentive environment affect behavior in preference reversal experiments. We classify experiments by incentive type: no monetary payments, monetary payments that are not necessarily truthrevealing, and truth-revealing monetary payments. We find the behavioral model that best explains preference reversal data changes with the incentives environment. With no monetary payments, random behavior or a model based on anchor and adjust biases best explains behavior. But what about the environments that are economic but do not have truth revealing incentives. However, with truth-revealing incentives, an expected utility model with errors best explains behavior. In fact, we show that no model can possibly explain the data significantly better in experiments with truth-revealing incentives. Tom for the concluding sentenceI want to push an idea and think it may better describe our results. I think that what we are saying is that when the environment generates truthrevealing incentives the environment behaves as economics predicts. However there are economic environments i.e. environements with incentives which because the incentives are not truthrevealing it appears that something other than economics may apply.
SOBRE UN DINOSAURIO HADROSAURIDO DE LA ARGENTINA

Materials of a Hadrosaurian Dinosaur (Ornithischia; lguanodontoidea; Ornithopoda), of Danian (or perhaps. Upper-Maestrichtian) beds found in the Rio Negro Province (Patagonia) are presented. They are assigned, with some hesita'tion, to a representative of the flat-headed group of these curious animals known as "duck-billed" Dinosaurs. The author discusses its geological age, specially witli relation to the problem of the marine ingressions known as "Rocanense" I and II (and other names accepting a Danian age (Lower-Paleocene) of the Rocanense in its type locality near the Boca town. From a zoogeographic and phylogenetic view, the· author remarks that 'this· is· the first discovery of a Dinosaur of the family (and superfamily) made in the Southem Hemisfere. He discusses its origin and dispersal, in connection with ilie now available data on palaeotemperatures based on the study of pelagic foraminifera. Finally tl1e ·interest of the probable presence of a Tertiary Dinosaurian is remarked, emphasizing the lack of value of negative registers.