Miracle-dz/UniFAR-FTUs huggingface dataset:
The Electromagnetic Emissions and Plasma Modulations at Middle Latitudes Related to SURA‐CSES Experiments in 2018

A total of 17 SURA‐China Seismo‐Electromagnetic Satellite (CSES) experiments in 2018 have been summarized and analyzed in multiple parameters detected in the topside ionosphere at altitude of 507 km from CSES. Most of them were fulfilled with underdense heating condition, and no any artificial density duct had been detected onboard CSES, but some plasma perturbations were actually observed in lower and topside ionosphere. Among them, different modulated waves were also transmitted by [power on, power off] and amplitude modulation modes on the pumping high‐frequency (HF) wave from SURA, and some were illustrated in HF electric field from CSES in local nighttime, one being verified at fmod in single component of very low frequency (VLF) electric field in local daytime. In addition, X mode‐emitted HF waves excited a filamentary structure on the existing VLF transmitters in local daytime, being different with those in O‐mode HF waves to enhance the VLF transmitter signals and widen their frequency band in local nighttime. These phenomena and their coupling process were discussed finally on the interaction of radio waves with plasma parameters in ionosphere.
The Evolution of Software Configuration Management

Software Configuration Management (SCM) is a discipline in software engineering for managing changes to software products using standard processes and tools. This article presents the evolution of SCM since its inception, highlighting the components, application to other areas, change management and software quality. Research and development in SCM are highly motivated by the problems at hand in software development. SCM process and activities are sound, guided by international standards and industry best practice. Commercial and proprietary tools are aplenty, and the underlying techniques are no longer confined to SCM. SCM has been applied to other areas since the turn of the century and change management has become a tool-oriented process, rather than a management-oriented process. The role of human in SCM has yet to be studied extensively compared to other areas in software engineering. Software quality is associated with defects and quality factors are measured differently based on projects and metrics.
Ab initio
 Investigation of Interfacial Thermal Transport for HMX‐PVDF Interface

: The theoretical investigation of heat dissapition for polymer-bonded explosives (PBXs) is in high demand in explosive design in terms of safety and realibility, particularly as lack of effective expreimental measurments. Here, we investigate the fundamental understanding of thermal transport across the heterogeneous interface between HMX and PVDF, by using the diffuse mismatch model and anharmonic inelastic model. This work explores the interfacial thermal conductance via ab initio calculation and derived phonon dispersions, phonon group velocities. For HMX-PVDF interface, it is shown that low frequency phonon modes (especially lower than 10 THz ) and two-phonon elastic process play dominant roles in the interface thermal transport. Furthermore, we present the calculated interfacial thermal conductance as a function of temperature. The thermal conductivity of mixture HMX-PVDF system is analysed with effective medium approximation model. From these calculations,we give the thermal transport properties predictions of PBX for thermal conductivity enhancement and provides fundamental microscopic insights into phonon transport physics in PBX.
Ecological speciation in darkness? Spatial niche partitioning in sibling subterranean spiders (Araneae : Linyphiidae : Troglohyphantes)

Abstract. Speciation in subterranean habitats is commonly explained as the result of divergent selection in geographically isolated populations; conversely, the contribution of niche partitioning in driving subterranean species diversification has been rarely quantified. The present study integrated molecular and morphological data with a hypervolume analysis based on functional traits to investigate a potential case of parapatric speciation by means of niche differentiation in two sibling spiders inhabiting contiguous subterranean habitats within a small alpine hypogean site. Troglohyphantes giachinoi, sp. nov. and T. bornensis are diagnosed by small details of the genitalia, which are likely to be involved in a reproductive barrier. Molecular analysis recovered the two species as sister, and revealed a deep genetic divergence that may trace back to the Messinian (∼6 million years ago). The hypervolume analysis highlighted a marginal overlap in their ecological niches, coupled with morphological character displacement. Specifically, T. giachinoi, sp. nov. exhibits morphological traits suitable for thriving in the smaller pores of the superficial network of underground fissures (Milieu Souterrain Superficiel, MSS), whereas T. bornensis shows a greater adaptation to the deep subterranean habitat. Our results suggest that different selective regimes within the subterranean environment, i.e. deep caves v. MSS, may either drive local speciation or facilitate contiguous distributions of independently subterranean adapted species.
The influence of Tween 80 on laccase production by Pleurotus sajor-caju and the efficiency of crude enzyme broth in the removal of bisphenol-A

ABSTRACT: Bisphenol-A is currently considered an environmental pollutant, capable of interfering in the endocrine system of organisms and causing alterations in its development and reproductive system. An alternative method to the chemical treatment of this pollutant has been the use of oxidative enzymes, especially laccases produced by fungi. In order to reduce production costs, agro-industrial waste can be used in the culture medium composition. Nonionic surfactants, which are only slightly toxic to biological membranes, can be applied, as well as Tween 80, to facilitate the excretion of these enzymes into the culture medium. The objectives of this work were: a) characterize the immersion water of banana straw used in the formulation of the culture medium; b) evaluate laccase production by Pleurotus sajor-caju in culture medium with and without addition of Tween 80, through shaken flasks; c) evaluate the efficiency of the crude enzyme broth in degrading bisphenol-A. The shaken flasks were incubated at 30°C for 12 days. The immersion water had a C:N ratio of 13.8, ash percentage of 28.6%, and pH close to neutrality. The addition of Tween 80 on the culture medium (7.5%, m/v) yielded laccase activity and productivity values equal to 3,016.47 U L-1 and 502.7 U L-1 day-1, respectively. These values were 50 and 33.5 times higher than those obtained in the culture medium without addition of Tween 80 for laccase activity and productivity, respectively. The crude enzyme broth degraded 100% of bisphenol-A after 48 hours, regardless of concentration (500, 750 and 1,000 mg L-1).
Sensory experience controls dendritic structure and behavior by distinct pathways involving degenerins

Dendrites are crucial for receiving information into neurons. Sensory experience affects the structure of these tree-like neurites, which, it is assumed, modifies neuronal function, yet the evidence is scarce, and the mechanisms are unknown. To study whether sensory experience affects dendritic morphology, we use the Caenorhabditis elegans’ arborized nociceptor PVD neurons, under natural mechanical stimulation induced by physical contacts between individuals. We found that mechanosensory signals induced by conspecifics affect the dendritic structure of the PVD. Moreover, developmentally isolated animals show a decrease in their ability to respond to harsh touch. The structural and behavioral plasticity following sensory deprivation are functionally independent of each other and are mediated by an array of evolutionarily conserved mechanosensory amiloride-sensitive epithelial sodium channels (degenerins). Our genetic results, supported by optogenetic, behavioral, and pharmacological evidence, suggest an activity-dependent homeostatic mechanism for dendritic structural plasticity, that in parallel controls escape response to noxious mechanosensory stimuli. Significance Statement Little is known about how neuronal activity and sensory experience influence the structure and function of dendritic trees. Furthermore, how dendritic structures affect neuronal functions remains to a large extent a mystery despite their fundamental functions in neuronal sensory and synaptic activities in health and diseases. Here we show that complex dendritic trees of the nociceptive and proprioceptive PVD neuron in C. elegans display a dynamic nature where they undergo pronounced dendritic modifications during adulthood. These modifications are determined by the received sensory signals generated by conspecific worms on the plate. We revealed functions for degenerins/Epithelial sodium channels in this phenomenon, using genetic and optogenetic approaches. We found that the degenerin MEC-10 acts cell autonomously to translate environmental mechanical signals into structural and functional modifications in the PVD.
Large Mode Area Photonic Crystal Fiber with Low Dispersion and Confinement Loss for Terahertz Wave Guiding

A photonic crystal fiber (PCF) made of the cyclic-olefin copolymer (COC) with low dispersion and confinement loss, large-mode-area, and single-mode transmission for terahertz wave guiding is described. The characteristics of the PCF in the terahertz range are simulated and analyzed by the full-vector finite element method (FEM). The effects of the structural parameters on the performance of the terahertz PCF are also investigated. The effective mode field area of the PCF is as large as 1.22084 × 107 μm2 at a wavelength of 1,000 μm and a flat dispersion of 0.07669 ± 0.33258 ps/nm/km is obtained. A much lower confinement loss of 6.0253 × 10-16 dB/m is achieved. The single mode transmission over the entire terahertz wave band is described.
Conceptual Design and Implementation of a Low-Cost Haptic Feedback Controller

This paper presents a conceptual study in designing a haptic feedback controller that can be implemented on a robotic arm that can be used for remotely collecting sample in contamination area, especially when the state of the sample is extremely delicate. The haptic robotic arm will allow the user to control the movement of the robot arm as well as giving touch sensation merely as a human arm can do. The objectives of this project are to propose a controller that uses a haptic system approach that is implemented and tested using low-cost, off-the-shelf microcontroller. The simple two-servo-motors test setup is used to demonstrate the feedback of the proposed haptic configuration. The results show that the proposed haptic system manage to react accordingly with any perturbation that acted upon the controlled servo motor that indicates the sense of touch (feedback) back to corresponding ‘human’ servo motors. These responses indicate a low-cost approach to create a haptic feedback system that can be further expanded for more complicated system such as human fingers for grabbing a delicate object.
Away from Home Studying in Brazil: Bulgarian Children’s Experiences of Brazilian Education

This paper presents findings from an extensive study conducted in Brazil. The main subjects of the study were Bulgarian children living and studying in Brazilian schools. The main goal was to indicate what kind of problems and obstacles they experience during the school time in Brazil and how the Brazilian government and people support these Bulgarian children. The data was collected by a Bulgarian research team that travelled to the remote regions of Brazil where many Bulgarian citizens live and work. The researchers took interviews with the Bulgarian children and their parents as well as school staff at the schools in Brazil with a high population of Bulgarian children. The analysis revealed many different problems that Bulgarian children and their parents highlighted, such as problems with the language of instructions, misunderstandings of school rules and general problems related to living in the remote areas of Brazil, such as weather and heat-related issues. Although many Bulgarian families reported some problems, they were still determined to continue their life and career in Brazil, and they want to continue to pursue their dreams.
Health-Oriented Tourists and Sustainable Domestic Tourism

Health-oriented tourism has emerged as one of the fastest-growing niche tourism fields worldwide. Although there have been studies on the relationship between health and travel behavior, most have been from the perspective of travel motivation and have rarely examined the impact of travel on health. This study explores those travel elements that have a positive influence on health in the domestic health tourism industry, with health being viewed across three domains: psychological, physical, and social. A total of 28 health-contributing travel items reported by 862 package tour participants were analyzed. On the psychological health dimension, experiencing good feelings and escaping bad ones is important. On the physical wellness dimension, natural patterns of food intake during the day is strongly recognized, including the results of increased appetite and improved digestion. On the social health dimension, relationship improvements were experienced, along with a greater understanding of partner(s). These findings add to our understanding of traveler wellness, a significant step towards having the right information to enhance the quality of travel services, especially in the domestic health tourism industry.
Use of an Indoor Solar Flash Test Device to Estimate Temperature and Irradiance Corrections of Photovoltaic Modules

Received: 19 March 2020 Accepted: 13 May 2020 I-V curves allow to estimate the performance of photovoltaic modules and strings. On site, I-V curves are usually obtained under operating conditions (OPCs), i.e. at variable solar radiation and module temperature. Thus, OPC curves must be translated into standard test conditions (STCs), at a global irradiance of 1000 W/m and a module temperature of 25 °C. The translation allows to estimate the deviation between the power of the examined module and that declared by the manufacturer. A possible translation procedure requires two correction parameters: Rs’, the internal series resistance, and k’, the corresponding temperature coefficient. The aim of this work is to estimate the correction parameters using calculation methods based on an error minimization routine, rather than carrying out specific experimental tests such as those proposed by IEC 60891. A set of brand-new photovoltaic modules was therefore experimentally characterized determining their I-V curves by means of an indoor solar flash test device based on a class A+ AM 1.5 solar simulator. Using the OPC and STC I-V curves as a dataset, the minimization routine allowed to estimate the correction parameters of the photovoltaic modules being considered. The procedure should be also effective using real, on-site I-V data.
Morphological comparison of bone marrow derived mesenchymal stem cell from albino ratsand Indian chicken

The bone marrow is a complex tissue containing stem cells with hematopoietic properties. These bone-marrow mesenchymal stem cells have been identified as the source of multipotent stem cells. Bone-marrow-derived mesenchymal stem cells (BM-MSCs) are also referred to as stromal progenitor cells which are self-renewing and expandable stem cells used for regenerative studies. Basically, the mesenchymal stem cell (MSC) has the unique property of plasticity and adherence. In this study we discuss the bone-marrow-MSC isolation and their cultural characterization based on plasticity, proliferation, and CD44 cell surface marker identification in Albino Rats and Indian Chicken. The results of comparative study in the two different species indicate that there are differences in the cell morphology and proliferation rate of MSC. This article provides general understanding of the cellular morphological difference of stem cells in the lower animal models, and paves the way for future research work into the selection of species.
Origin-related study of genetic diversity and heteroplasmy of Mongolian sheep (Ovis arie) using mitochondrial DNA

Food and agricultural production sector, especially livestock production is vital for Mongolia’s economic and social development. Domestic sheep play key roles for Mongolians, providing food (meat, milk) and raw materials (wool, sheepskin), but genetic diversity, origin of sheep populations in Mongolia have not been well studied. Studies of population genetic diversity is important research field in conservation and restoration of animal breeds and genetic resources. Therefore, this study aimed to investigate genetic characteristics and estimate origin through the analysis of mitochondrial DNA control region D-loop and Cytochrome b of Mongolian indigenous sheep (Mongolian native, Orkhon and Altanbulag) and one Europe sheep (Suffolk). As a result of there were found, 220 SNPs (Single nucleotide polymorphism) in the D-loop region, 28 SNPs in the Cytochrome B region, furthermore, 77 Haplotypes. The nucleotide diversity was only found in D-loop region (n = 0.0184). Phylogenetic analysis showed that 3 (A, B, and C) of 5 haplogroups of sheep have been identified in our research. Haplogroup C was only found in Mongolian indigenous sheep. Haplogroup D and E were not observed. As a result of haplogroups, haplogroup A was dominant (n = 46 of 94 sheeps), followed by haplogroup B (n = 36) and haplogroup C (n = 12). Sequence analysis showed that T deletion, insertion and heteroplasmy in D-loop region occurred at a high rate in Mongolian indigenous sheep population (T insertion = 47, T deletion = 83). The heteroplasmy, which has never been found in Mongolian sheep, has been newly discovered in this study. As a result, the Mongolian sheep varieties, which mainly derived from Asia, were in hybridization with European sheep varieties.
Towards Drowsiness Driving Detection Based on Multi-Feature Fusion and LSTM Networks

Drowsiness driving poses a huge threat to the traffic safety. In this paper, a novel drowsiness driving detection method based on multi-feature fusion and long short-term memory (LSTM) recurrent neural networks is proposed to reduce traffic accidents caused by drowsiness driving. Firstly, we collect steering wheel angles (SWAs) of vehicles and facial videos of drivers by a driving simulator. Secondly, the drowsiness driving-related steering features and facial expression features are respectively extracted from the collected SWAs and facial videos by the One Way ANOVA method and the FEFENet network, and then they are fused by concatenation operation. Considering that the generation of drowsiness is a long-term dynamic process and the degree of drowsiness accumulates over time, we design LSTM networks to cope with the fused feature sequence in a fixed duration, thereby establishing a effective drowsiness driving detection model. Some experiments are conducted to validate the performance of the proposed method, and the results demonstrate that our method can get robust and high accuracy performance in many challenging driving scenarios.
A Supplementary Tool for Web-archiving Using Blockchain Technology

The usefulness of a uniform resource locator (URL) on the World Wide Web is reliant on the resource being hosted at the same URL in perpetuity. When URLs are altered or removed, this results in the resource, such as an image or document, being inaccessible. While web-archiving projects seek to prevent such a loss of online resources, providing complete backups of the web remains a formidable challenge. This article outlines the initial development and testing of a decentralised application (DApp), provisionally named Repudiation Chain, as a potential tool to help address these challenges presented by shifting URLs and uncertain web-archiving. Repudiation Chain seeks to make use of a blockchain smart contract mechanism in order to allow individual users to contribute to web-archiving. Repudiation Chain aims to offer unalterable assurance that a specific file and its URL existed at a given point in time—by generating a compact, non-reversible representation of the file at the time of its non-repudiation. If widely adopted, such a tool could contribute to decentralisation and democratisation of web-archiving.
Supervisory and Data Acquisition project with LoRa

The goal of this work is to present the developed project in Grafana, which is an open environment for Supervisory Control and Data Acquisition (SCADA). It occupies a high level in the hierarchy of the control system. The new here is the low radio (LoRa) signal applied at field level of hierarchical industrial systems. In this way combination of low energy protocol, in fieldbus, and open platform for monitoring and data acquisition, in high information level is achieved. An advantage here is related to the low energy protocol that is applied in industrial systems. In the created project a combination of LoRa and Open Grafana is main contribution of the work. Hence the article is useful for the upcoming Industry 4.0, which needs and uses such solutions.
Effect of Rotation Age and Thinning Regime on Visual and Structural Lumber Grades of Douglas-Fir Logs

Douglas-fir, the most important timber species in the Pacific Northwest, US (PNW), has high stiffness and strength. Growing it in plantations on short rotations since the 1980s has led to concerns about the impact of juvenile/mature wood proportion on wood properties. Lumber recovered from four sites in a thinning trial in the PNW was analyzed for relationships between thinning regime and lumber grade yield. Linear mixed-effects models were developed for understanding how rotation age and thinning affect the lumber grade yield. Log small-end diameter was overall the most important for describing the presence of an appearance grade, generally exhibiting an indirect relationship with the lower quality grades. Stand Quadratic Mean Diameter (QMD) was found to be the next most uniformly important predictor, its influence (positive or negative) depending on the lumber grade. For quantity within a grade, as log small-end diameter increased, the quantity of the highest grade increased, while decreasing the quantity of the lower grades differentially. Other tree and stand attributes were of varying importance among grades, including stand density, tree height, and stand slope, but logically depicted the tradeoffs or rebalancing among the grades as the tree and stand characteristics change. Structural lumber grade presence was described best by acoustic wave flight time, log position (decreasing presence in upper logs), and an increasing presence with rotation age. A smaller set of variables proved useful for describing quantity within a structural grade. Forest managers can use these results in planning to best capture value in harvesting, allowing them to direct raw materials (logs) to appropriate manufacturing facilities given market demand.