Miracle-dz/UniFAR-FTUs huggingface dataset:
PHYSICAL MODELLING OF WAVE ENERGY CONVERTER ARRAYS IN A LARGE- SCALE WAVE BASIN: THE WECwakes PROJECT

Vasiliki Stratigaki (1), Peter Troch (1), David Forehand (2), Tim Stallard (3), Jens Peter Kofoed (4), Matt Folley (5), Michel Benoit (6), Aurélien Babarit (7), Jens Kirkegaard (8), David Gallach Sánchez (1), Lieselot De Bosscher (1), Pieter Rauwoens (1), Björn Elsäßer (5), Paul Lamont-Kane (5), Peter McCallum (2), Cameron McNatt (2), Elisa Angelelli (4), Arthur Pecher (4), Efrain Carpintero Moreno (3), Sarah Bellew (3), Emmanuel Dombre (6), François Charrayre (6), Stefan Carstensen (8), Peter Stansby (3), Marc Vantorre (1)
Magnetic fields in Local Group dwarf irregulars

Aims. We wish to clarify whether strong magnetic fields can be effectively generated in typically low-mass dwarf galaxies and to assess the role of dwarf galaxies in the magnetization of the Universe. Methods. We performed a search for radio emission and magnetic fields in an unbiased sample of 12 Local Group (LG) irregular and dwarf irregular galaxies with the 100-m Effelsberg telescope at 2.64 GHz. Three galaxies were detected. A higher frequency (4.85 GHz) was used to search for polarized emission in five dwarfs that are the most luminous ones in the infrared domain, of which three were detected. Results. Magnetic fields in LG dwarfs are weak, with a mean value of the total field strength of 6 μG) are observed only in dwarfs of extreme characteristics (e.g. NGC 4449, NGC 1569, and the LG dwarf IC 10). They are all starbursts and more evolved objects of statistically much higher metallicity and global star-formation rate than the majority of the LG dwarf population. Typical LG dwarfs are unsuitable objects for the efficient supply of magnetic fields to the intergalactic medium.
Feasibility Study Of Lecturers’ Acceptance Of E-Assessment

Technology acceptance studies are an effective way of gauging future system use and developing a robust system. In the area of e-learning numerous technology acceptance studies exist. However, rarely research works have studied acceptance of e-assessment. The purpose of this study is to develop a novel model that can predict a university lecturer’s intention to use e-assessment. The proposed model uses Technology Acceptance Model (TAM) as a foundation and complements it with relevant constructs from appropriate acceptance models like Theory of Reasoned Action(TRA), Technology Acceptance Model -2 (TAM-2), Social Cognitive Theory (SCT) and Unified Theory of Acceptance and Usage of Technology (UTAUT). A construct relating to Experience has also been used. Data was collected from 52 lecturers at a public university in Malaysia. Partial Least Squares was used to test the hypothesised model. The model can explain approximately 52% of lecturer’s e-assessment acceptance.
An evaluation based on users’ feedback

vii Chapter 1: Introduction. 1 Chapter Summary. 1 1.1 Background. 1 1.2 Method and scope. 3 1.3 Thesis structure. 3 1.4 Conclusion. 5 Chapter 2: Literature Review. 6 Chapter Summary. 6 2.1 What are the purposes of a literature review? 6 2.2 Context of use (content and design). 7 2.2.1 Web Content Management System. 7 2.2.2 Website designers’ or users’ opinion? 8 2.2.3 What is relevant to include in a Library website design? 8 2.2.4 A design conceptual model. 9 2.3 Clarity, utility and assistance of the website (usability). 9 2.3.1 Usability and quality of an academic library website. 9 2.3.2 Clarity and assistance of an academic library website. 10 2.4 Links to intranet and internet (services). 11 2.4. 1 Web 2.0 tools in an academic library website. 11 2.4. 2 Customer services in an academic library website. 12 2.4. 3 Marketing the services in an academic library website. 13 2.4. 4 Benchmark services in an academic library website. 13 2.4. 5 Podcast tools in an academic library website. 14 2.5 Conclusion. 15 Chapter 3: Methodology. 17 Chapter Summary. 17 3.1 Research questions. 17 3.2 Research philosophy. 18 3.3 Research approach. 21 3.4 Research strategy. 22
Diatoms (Bacillariophyceae) from the Bolivian Altiplano: three new araphid species from the Desaguadero River draining Lake Titicaca.

Three new araphid diatom species, Pseudostaurosira decipiens E. Morales, G. Chavez et Ector, P. sajamaensis E. Morales et Ector and Staurosira kjotsunarum E. Morales, Novais et Ector are described from a single sample taken from the Desaguadero River in the Bolivian Altiplano. These species clearly belong in their respective genera as evidenced by their morphological features studied using light (LM) and scanning electron microscopy (SEM). Pseudostaurosira decipiens is unique in its genus because of the combination of lanceolate-shaped valves with central area, well-developed spines lacking ligulae, siliceous deposits on outer and inner areolar openings similar to flaps, and the inner rounded structure of the apical pore fields. Pseudostaurosira sajamaensis is different from other species of Pseudostaurosira due to its elliptic to lanceolate valves bearing a wide central sternum, spines with developed ligulae and bilobed flaps, robust volae and reduced or absent apical pore fields. Staurosira kjotsunarum is unique within Staurosira in having elevated costae on both external and internal views, narrowly spatulate spines that hold onto areolae of neighboring valves along a chain, and striae composed of round poroids underneath the apical pore fields on the valve mantle. The three species are compared with morphologically similar taxa and a brief analysis of the richness found in the studied sample in the context of previous publications on diatoms from the Andes and contiguous regions is presented.
Polypyrrole-Fe2O3 Nanocomposites with High Dielectric Constant: In Situ Chemical Polymerisation

Novel nanocomposites of polypyrrole (PPy) dispersed with iron oxide (Fe2O3) particles have been synthesised by in situ chemical oxidative polymerisation of pyrrole in the presence of ammonium persulfate (APS) as an oxidising agent. The concentration of Fe2O3 was varied between 10-50wt% of PPy. The simultaneous polymerisation of pyrrole and oxide addition led to the complete synthesis of nanocomposites. A maximum dielectric constant of ∼28500 was observed at 20wt% of Fe2O3. The nanocomposites were characterised by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). XRD analysis confirmed the structure and crystallinity of the nanocomposites, and a strong interaction between PPy and Fe2O3 particles was observed by FTIR technique. SEM and TEM images showed that Fe2O3 particles had been coated with PPy by establishing a network during the polymerisation process. The values of dielectric constant were obtained from capacitance measurements. The value of dielectric constant for nanocomposites with 20wt% of Fe2O3 was observed to be almost 12 times that of the pure PPy matrix. The high value of dielectric constant indicated a high packing density of Fe2O3 particles in PPy matrix. These nanocomposites have potential applications in electronic or biomedical devices.
A General Theory of Price and Quantity Aggregation and Welfare Measurement

The paper presents a general theory of the aggregation of prices and quantities that unifies the field and relates topics that in the past have been treated separately and unsatisfactorily, or not at all. The theory does without the common but unrealistic assumptions of homotheticity, or representative agents and is valid with or without an explicit utility maximization assumption. Two different derivations are given, one in continuous time, using Divisia integrals, and one employing more traditional discrete arguments. The unifying concept is the money metric, which is interpreted as a partial welfare indicator, rather than as a comprehensive welfare measure. On this basis, a consistent set of chained price and quantity indexes for a set of additive time series, such as those in the national income and product accounts, is derived. All variants of the theory lead to Tornqvist indexes defined on the appropriate data set. A numerical example confirms that in the non-homothetic case, these indexes are superior both to Fisher’s ‘ideal’ index and to the consumer surplus approximation.
The Time-Varying Long-Run Unemployment Rate: The Colombian Case

The long-run component of the Colombian unemployment rate is estimated for the last twenty years. According to the results, the main determinants of the permanent component of the unemployment rate are the real hourly wage, the non-wage labor costs and the rate of capital accumulation. Given the statistical properties of the variables, a cointegration approach was adopted.
Epitaxial PbTiO3 Thin Films on SrTiO3(100) and SrRuO3/SrTiO3(100) Substrates Deposited by a Hydrothermal Method

Lead titanate (PbTiO3) thin film is a promising material for ultrahigh-density ferroelectric data storage systems, pyroelectric sensors and ferroelectric optical devices. In this study, high-quality epitaxial PbTiO3 thin films were deposited on SrTiO3(100) and SrRuO3/SrTiO3(100) by a hydrothermal method. The crystal orientation of the deposited film was investigated with a high-resolution X-ray diffraction mapping system. The full width at half maximum (FWHM) of the rocking curve of the (002) PbTiO3 film on SrTiO3 was 0.060°. The reciprocal space mappings of (103) verified that the PbTiO3 films had perfect c-axis orientation. The self-aligned polarization was confirmed with observation using a scanning nonlinear dielectric microscope. The PbTiO3 on SrRuO3/SrTiO3(100) was used for the D-E hysteresis curve measurement and the remanent polarization was 96.5 µC/cm2. Domain patterning was applied to a 50-nm-thick PbTiO3 film using a conductive cantilever probe. The minimum radius of the nano domain dot was 12 nm, corresponding to a data density of 1 Tbit/inch2.
02. Genetic variation within and between four chromosomal races of Liolaemus monticola in Chile

Allozyme variability was assessed within and between 18 samples of four chromosomal races of the Liolaemus monticola complex: "Southern, 2n=34", "Northern, 2n=38-40", "Multiple Fission, 2n=42-44" and "Northern modified 1, 2n=38-40". This is an endemic montane Chilean lizard characterized by extensive chromosomal polytypy. The population genetic structure was studied by means of allozyme electrophoresis of 20 presumptive loci. Population heterogeneity analysis carried out by the estimation of Weir and Cockerham's F-statistic (θ), demonstrated substantial genetic differentiation among populations. The u-statistic, genetic distance data and multivariate analyses show that genetic variation is distributed into geographically coherent population groups in accordance with three of the four chromosome races. The greatest differentiation occurs between all populations of the "Southern, 2n=34" race and a second group that includes all populations from the "Northern, 2n=38-40" plus "Northern mod 1, 2n=38-40" races, separated from the "Multiple Fissions, 2n=42-44" race. As riverine barriers also separate these chromosomal races, we do not attribute the observed differentiation to isolation-by-distance or the chromosome characterization for each race. Possible routes of migration and colonization are proposed.
Representation of Radar Micro-Dopplers Using Customized Dictionaries

Human motions give rise to frequency modulations, known as micro-Dopplers, to contin- uous wave radar signals. Micro-Doppler signals have been extensively researched for the classification of different types of human motions as well as to distinguish humans from other moving targets. However, there are two main scenarios where the performance of existing algorithms deteriorates significantly—one, when the channel consists of multiple moving targets resulting in distorted signatures, and two, when the systems conditions during the training stage deviate significantly from the conditions during the test stage. In this chapter, it is demonstrated that both of these limitations can be overcome by representing the radar data through customized dictionaries, fine-tuned to provide sparser representations of the data, than traditional data-independent dictionaries such as Fourier or wavelets. The performances of the algorithms are evaluated with both simulated and measured radar data gathered from moving humans in indoor line-of-sight conditions. the carrier frequency—the fundamental parameter that controls the resolution, extent, and quality of micro-Doppler data—was varied. The algorithm learned dictionaries from diverse training data and was capable of correctly classifying completely different test data. While the dictionary learning techniques were examined in the context of micro-Doppler data, the encouraging results suggest that these techniques may be successfully extended to other radar scenarios especially the range-Doppler images of ISAR.
Real world accident reconstruction with the Total Human Model for Safety (THUMS) in Pam-Crash

Further improvement of vehicle safety needs detailed analysis of real world accidents. According to GIDAS (German In-Depth Accident Study) most car to car front accidents occur at mid-crash severity. In this range thoracic injuries already occur. In this study a real world frontal crash with mid-crash severity out of the Audi Accident Research Unit (AARU) database was reconstructed. The selected car to car accident was reconstructed by AARU by means of pc-crash software in order to get the initial dynamic accident conditions. These initial conditions were used to reconstruct the complete accident in more detail using FE models for the car structure and the occupants. Occupant simulations were performed with FE HIII-dummy models and the THUMS using Pam-Crash code. An initial THUMS validation was performed in order to verify the model´s biofidelity by means of table-top test simulations. THUMS bone stiffness values were modified to match the real word occupant age. A comparison between driver and passenger restraint system loading was done, as well as an injury prediction comparison between the HIII-dummy model and THUMS response for both cases. Detailed comparison between the HIII-dummy models and THUMS regarding thoracic loading are discussed. (A) Paper to the session "Injury Prevention and Mechanisms" of the 5th International Conference on ESAR "Expert Symposium on Accident Research", 7th to 8th September 2012 in Hannover.
Studying Galactic Chemical Properties by using Cosmological Numerical Simulations

Abstract We developed a chemical code within gadget2 which allows the description of the enrichment of the Universe as a function of redshift, taking into account detailed metal production by supernovae Ia and II, and metal-dependent cooling. This is the first numerical code that includes both chemical production and metal-dependent cooling in a cosmological context. By analysing the cosmic star formation rate, we found that the effects of considering a metal-dependent cooling are important, principally, for z ≤ 3. In simulations where primordial cooling functions are used, the comoving star formation rate could be up to 20%; lower than those obtained in runs with metal-dependent cooling functions. Within galaxy-like objects, the presence of chemical elements changes the star-formation rates and, consequently, the chemical production and patterns of stars. However, owing to non-linear evolution of the structure, the effects depend on the evolutionary history path of each galaxy-like object.
Ubiquitous Containerized Cargo Monitoring System Development based on Wireless Sensor Network Technology

Due to globalization, global trade is strongly growing nowadays. The use of containers has significantly increased and bringing the change on the shape of the world economy. Thus, monitoring every single container is a big challenge for port industries. Furthermore, rapid development in embedded computing systems has led to the emergence of Wireless Sensor Network (WSN) technology which enabled us to envision the intelligent containers. This represents the next evolutionary development in logistics industry to increase the efficiency, productivity, security of containerized cargo shipping. In this paper, we present a comprehensive containerized cargo monitoring system based on WSNs. We incorporated tilt/motion sensor to improve the network convergence time of container networks. Moreover, we periodically switch the nodes into sleeping mode to save energy and extend the lifetime of the network. Based on the technical implementation on a real container vessel, we strongly believed that our design which employed WSN technology is viable to be implemented in container logistics to improve port services and provide safe transport of containerized cargo.
An experimental study on the effects of nutrient enrichment on organic carbon persistence in the western Pacific oligotrophic gyre

Carbon sequestration in the ocean is of great concern with respect to the mitigation of global warming. How to hold the fixed organic carbon in the presence of tremendous numbers of heterotrophic microorganisms in marine environments is the central issue. We previously hypothesized that excessive nutrients would ultimately decrease the storage of organic carbon in marine environments. To test this, a series of in situ nutrient enrichment incubation experiments were conducted at a site (17.59° N, 127.00° E) within the western Pacific oligotrophic gyre. Five treatments were employed: glucose (Glu), algal exudation organic material (EOM), nitrate (N) and phosphate (P), N and P in combination with glucose and a control with no added nutrients. The results showed that the dissolved organic carbon consumption rates and bacterial community specific growth rates were enhanced by inorganic nutrient enrichment treatments during the initial 48 h incubation. At the end of 14 days of incubation, about one-third (average 3.3 μmol C kg −1 ) more organic carbon was respired in the glucose-enriched incubation with the addition of inorganic nutrients compared to that without. In contrast, when nutrients were limiting, glucose could not be efficiently used by the bacteria and thus it remained in the environment. These results suggest that repletion of inorganic nutrients could facilitate microbial consumption of organic carbon and thus has a significant impact on carbon cycling in the environment.
Tumor-Draining Lymph Nodes Contain Immunodominant Peptide-Specific T Cells which Demonstrate Efficacy in Murine Models of Adoptive Immunotherapy

Background: The purpose of this study was to determine whether tumor draining lymph nodes (TDLNs) contain the necessary components to process and present tumor-rejection antigens. The secondary objective was to determine whether short term ex vivo culture of TDLNs could generate peptide-reactive T cells with specific anti-tumor effector function in vivo . Methods: 4T1 and RENCA cancer cell lines were transfected with an expression plasmid containing HER2. These cell lines were then inoculated into the mammary fat pads of BALB/c mice to generate TDLNs. The antigen-experienced CD62L low T cell subpopulation of TDLNs was isolated and activated ex vivo with anti-CD3 and expanded in interleukin (IL)-2 prior to determining in vitro and in vivo activity. Results: Of nine HER2 nonameric peptides synthesized using the SYFPIETHI prediction model, culture activated cells derived from TDLNs from HER2-bearing 4T1 cells (4T1.2) secreted significant levels of interferon-g in response to the highest affinity peptide TYLPTNASL. Furthermore, culture-activated cells derived from 4T1.2 TDLNs secreted significant levels of interferon-g when co-cultured with either 4T1.2 or HER2-transfected RENCA cells, but not RENCA transfected with control plasmid. Additionally, adoptive transfer of culture activated cells derived from 4T1.2 TDLNs cured mice bearing 4T1, 4T1.2 and RENCA-HER2 but not RENCA transfected with control plasmid. Conclusions: Short-term culture of TDLNs ex vivo results in generation of peptide-reactive T cells which can be expanded and cure mice bearing HER2 transfected tumors in vivo . These results provide proof-of-concept that TDLNs have the capacity to process and present tumor-rejection antigens, specific to an individual patient’s tumor. Journal of Nature and Science (JNSCI), 3(6):e398, 2017
Leaders in MicroBlog based on Linked Data

In view of the lack of subjectivity and accuracy in the traditional micro-blog opinion leader recognition method to measure the important factors of users, a new micro-blog opinion leader recognition method is proposed. This paper used the linked data to describe the microblog data, used the association rule mining algorithm to quantitatively determine the important factors that affected the users’ ranking, and constructed the opinion leader recognition model according to the index scoring method. Experiments show that our method using linked data identifies the opinion leaders the same as the standard leaders, is more accurate and has better feasibility than that of traditional data.
Numerical analysis of developing turbulent flow in a 180° bend tube by an algebraic Reynolds stress model

A numerical analysis has been performed for three‐dimensional developing turbulent flow in a 180° bend tube with straight inlet and outlet section used by an algebraic Reynolds stress model. To our knowledge, numerical investigations, which show the detailed comparison between calculated results and experimental data including distributions of Reynolds stresses, are few and far between. From this point of view, an algebraic Reynolds stress model in conjunction with boundary‐fitted co‐ordinate system is applied to a 180° bend tube in order to predict the anisotropic turbulent structure precisely. Calculated results are compared with the experimental data including distributions of Reynolds stresses. As a result of this analysis, it has been found that the calculated results show a comparatively good agreement with the experimental data of the time‐averaged velocity and the secondary vectors in both the bent tube and straight outlet sections. For example, the location of the maximum streamwise velocity, which appears near the top or bottom wall in the bent tube, is predicted correctly by the present method. As for the comparison of Reynolds stresses, the present method has been found to simulate many characteristic features of streamwise normal stress and shear stresses in the bent tube qualitatively and has a tendency to under‐predict its value quantitatively. Judging from the comparison between the calculated and the experimental results, the algebraic Reynolds stress model is applicable to the developing turbulent flow in a bent tube that is known as a flow with a strong convective effect. Copyright © 2005 John Wiley & Sons, Ltd.
Structural policies to boost productivity and inclusion in Costa Rica

Owing to past structural reforms, Costa Rica has enjoyed robust GDP growth and productivity levels are gradually converging towards the OECD average. However, large GDP per capita and productivity gaps persist. In addition, not everyone has benefited from this growth. Inequality has increased and labour market conditions are a concern. Costa Rica has a lower share of employed workers in the population than almost all OECD countries, unemployment remains well above its pre-global-financial-crisis level, labour market participation has decreased and the share of informal jobs is high. Recognising these challenges, Costa Rica has accelerated its structural reform momentum recently, with policy reforms underway or planned in several areas that present win-win opportunities to boost both productivity and inclusion. These include efforts to tackle labour market informality, simplify the minimum wage structure, increase competition and reduce regulatory burdens. In addition to further reforms in these priority areas, structural policy improvements are also needed to increase outcomes and reduce inequalities in education and address significant transport infrastructure gaps.