Miracle-dz/UniFAR-FTUs huggingface dataset:
Voltage regulation of a PV farm in a wide range using reserve panels

Nowadays, due to increasing energy demands and concerns about environmental issues and global warming, there has been a rapid growth in renewable power generation. One of the most accessible renewable energies is solar energy, which can be easily converted to electricity using photovoltaic (PV) systems. PV panels, power electronic interfaces, and sometimes loads have non-linear and time-variant characteristics. Hence, the DC-link regulator is not capable of compensating the DC-link voltage in case of considerable variations. In this paper, a new technique based on reserve panels is proposed to improve the performance of DC-link controller in case of panel outage and partial shading. To verify the proposed method, some simulations are carried out in MATLAB/Simulink software.
Size Matters: Ryanodine Receptor Cluster Size Affects Arrhythmogenic Sarcoplasmic Reticulum Calcium Release

Background Ryanodine receptors (RyR) mediate sarcoplasmic reticulum calcium (Ca2+) release and influence myocyte Ca2+ homeostasis and arrhythmias. In cardiac myocytes, RyRs are found in clusters of various sizes and shapes, and RyR cluster size may critically influence normal and arrhythmogenic Ca2+ spark and wave formation. However, the actual RyR cluster sizes at specific Ca2+ spark sites have never been measured in the physiological setting. Methods and Results Here we measured RyR cluster size and Ca2+ sparks simultaneously to assess how RyR cluster size influences Ca2+ sparks and sarcoplasmic reticulum Ca2+ leak. For small RyR cluster sizes (<50), Ca2+ spark frequency is very low but then increases dramatically at larger cluster sizes. In contrast, Ca2+ spark amplitude is nearly maximal even at relatively small RyR cluster size (≈10) and changes little at larger cluster size. These properties agreed with computational simulations of RyR gating within clusters. Conclusions Our study explains how this combination of properties may limit arrhythmogenic Ca2+ sparks and wave propagation (at many junctions) while preserving the efficacy and spatial synchronization of Ca2+‐induced Ca2+‐release during normal excitation‐contraction coupling. However, variations in RyR cluster size among individual junctions and RyR sensitivity could exacerbate heterogeneity of local sarcoplasmic reticulum Ca2+ release and arrhythmogenesis under pathological conditions.
Characteristics of Organic Carbon and Elemental Carbon in the Ambient Air of Coking Plant

To investigate the characteristics of organic carbon (OC) and elemental carbon (EC) in the ambient air of coking plant, particulate matter samples were collected and analyzed. The OC and EC mass concentrations were in the range of 104.2-223. 2μg/m^3 and 93.7-237. 8μg/m^3, respectively, which were much higher than those in the ambient air of industry, highway, and urban roadway tunnel. The OC concentrations did not significantly differ at the coke side and the machine side, whereas the EC concentration was significantly higher at the coke side. The OC/EC ratios ranged from 0.74 to 2.35, and coking was the primary source of OC and EC. Carbonaceous aerosol was a large component in the ambient air, and the total carbonaceous aerosol (TCA) accounted for 39.1%-73.0% of the total suspended particulates (TSP). TCA contributions to TSP were consistent at the coke side and the machine side, and both contributions were lower than those at other sampling sites. OC and EC emission control must be strengthened for improving coking plant air quality and reducing health hazards to coke-plant workers. OC-EC correlation was evident, with a correlation coefficient of 0.976 (p＜0.05) at the coke-oven top, coke side, and machine side, whereas no significant correlations were observed at sites downwind of the coke oven (p＞0.05).
Who is Bogus?: Using One-Sided Labels to Identify Fraudulent Firms from Tax Returns

We applya classifier to the value added tax (VAT) returns from Delhi (India) to increase tax compliance by identifying "bogus" (shell) firms which can be further targeted for physical inspections. We face a nonstandard applied machine learning scenario. First, onesided labels: firms that are not caught as bogus are of unknown class: bogus or legitimate, and we need to not only use them to train the classifier but also make predictions on them. Second, multiple time-periods: each firm files several periodic VAT returns but its class is fixed so prediction needs to be made at the firm, not firm-period, level. Third, point in time simulation: we estimate the revenue saving potential of our model by simulating the implementation of our system in the past. We do this by rolling back the data to the state of knowledge at a specific time and calculating the revenue impact of acting on our model's recommendations and catching the bogus firms, and estimate US$40 million in recovered revenue.
Rainbow Trout Rearing Performance, Intestinal Morphology, and Immune Response after Long-term Feeding of High Levels of Fermented Soybean Meal

AbstractThe incorporation of PepSoyGen (PSG), a commercially produced fermented soybean meal product, was evaluated in a 205-d feeding trial. Three isonitrogenous and isocaloric experimental diets containing 0, 35, or 50% PSG and 40, 15, and 0% fish meal, respectively, were fed to Rainbow Trout Oncorhynchus mykiss. The diets containing either 0% or 35% PSG produced similar total tank weight gains, percent gains, and feed conversion ratios and were significantly different from the diets containing 50% PSG at the end of the trial. Mean individual fish lengths and weights were significantly greater in the fish receiving 35% PSG than either of the other two diets. Specific growth rate (SGR) was significantly lower in the 50% PSG treatment, but there was no significant difference in SGR between the other two diets. Viscerosomatic index was significantly lower in the fish fed 35% PSG. Hepatosomatic index was not significantly different among the diets, but fish receiving 50% PSG had a significantly poorer liver.
Job Satisfaction and Associated Factors among Nurses Working In the Operation Theater at Government Hospitals of Eastern Ethiopia, 2017

Background: Job satisfaction is an essential part of nurses‘lives, influencing patient safety, productivity, performance, quality of care, retention, commitment to the organization and the profession. The aim of this study is to assess the level of job satisfaction and associated factors among nurses working in the operating theatre. Method: Institutional based cross-sectional study design was conducted and Simple random sampling method was used to obtain the study participants. Data was collected using a structured selfadministered questionnaire, entered in to EPI data version 3.1and analyzed using SPSS version20. Associations for statistical significance were assessed using the ‘chi square’ test of association. P-values less than 0.05 were considered as statistically significant. Results: The overall level of job satisfaction among nurses who work in operation theater was 48% room from the total participant 8(8.16%) of the respondents were satisfied 39 (39.8%) moderately satisfied whereas the rest 52% was dissatisfied. Type hospital was the only variable that is significantly associated with job satisfaction. Conclusion: The overall level of job satisfaction among nurses work in operation theater room was low Accordingly, working at operating room, type hospital were significantly associated with satisfaction of nurses working in the operating room .
Single-stage PFC converters for electrolytic capacitor-less LED lamps

This paper proposes two novel single-stage power factor correction (PFC) converters for the application of LED driving circuit. These circuits can be implemented free of electrolytic capacitors. Meanwhile, they maintain good power factors and tolerable current ripple rates. Low current ripple rate means low LED light flicker, which is beneficial to human beings' eyes. The proposed circuits are simulated by Powersim. Operation principles and key waveforms are provided in the paper. Simulation results show that the circuits perform well and really have the characteristics we expected.
A Secure Container-based Backup Mechanism to Survive Destructive Ransomware Attacks

The threats of destructive ransomware keep increasing and current security facilities (firewall, IDS/IPS, etc.) and backup systems cannot effectively protect data from the attacks in real time. In this paper, we propose a secure container-based backup mechanism to survive destructive ransomware attacks. In the mechanism, the backup process takes place in a highly restricted local docker container and only the container can access both source and backup data stored in the local and remote storages. That is, the host is only allowed to access the source data and the container is only allowed to perform backup process without any other communications. Consequently, any other processes in the host cannot access the backup data stored in the container and the remote storage. Thus even if the host and the container are completely destroyed, the data can be recovered from the remote storage. We implemented a prototype system and confirmed that it can backup data with high usability and store the backup data securely.
Signal Detection Method for Interference From Inverter Microwave Ovens in WLAN Systems

Inverter microwave ovens (inv. MWOs) are day-to-day appliances that can severely interfere with 2.4 GHz wireless LAN (WLAN) devices. However, interference is avoidable by using a signal detection method that recognizes MWO signals. In our previous work, we have proposed a specialized detection method that recognizes characteristic power levels of leakage signals from inv. MWOs, which drastically vary depending on the switching of the inverter. Using experimental MWO data obtained in a shielded room, we also demonstrated that the proposed method correctly detects inv. MWO signals with robustness against different products, different receiving environments, and the presence of other signals. In this paper, we begin with a discussion of the influence of MWO interference, and then review process and evaluation of the proposed method, along with new additional analysis. By simplifying the process, we also provide a test chip implementation for method realization and real-time signal detection to enhance the reliability of WLAN systems. Finally, we use the test chip to show that it is also possible to detect jammer signals.
Analysis of typical configuration scheme of micro-grid based on the electric energy router

The electric energy router (EER) could provide more flexible control means of power flow for micro-grid. In this paper, we focus on the key issues of micro-grid configuration. First, 3 typical micro-grid configurations based on EER are proposed. To assess the typical configuration schemes, 4 kinds of assessment indexes are introduced, which include local consumption capacity of renewable energy, energy loss, operation cost and Life Cycle Cost (LCC) of micro-grid. A thorough analysis for these configuration schemes based on the typical scenarios has been carried out. Then the impact factors on the configuration are investigated in the assessment and the conclusions could be the useful references for optimizing configuration of micro-grid based on ERR.
Ancient DNA in paleosols , SW Greenland-A tool for retrospective paleoenvironmental studies ?

Ancient DNA (aDNA) is a useful tool for retrospective paleoenvironmental studies. Paleosols formed in Arctic environments constitute a potential archive of aDNA from terrestrial organisms living in past environments, given that the cold and dry climate prevailing at high latitudes favors DNA preservation and hamper post-depositional mobility of deposited fragments. However, to what extent aDNA is preserved in old buried soil layers (paleosol layers) are not well known. This study asses to what extent DNA older than 100 years is present in a paleosol profile from southwest Greenland. My main hypothesis was that aDNA from both plants and animals could be extracted from old buried soil layers. I found that oldest studied soil layers were more than 800 B.P. yr old. These old layers contained DNA from both plants and animals. The clean sampling protocol used showed no signs of contamination, suggesting that the DNA was from soil layers and not from modern contaminants. I conclude that my hypothesis seems valid and that a majority of the analyzed plant and animal DNA is ancient. Indeed, aDNA could be used to infer species presence in past paleoenvironments and widen our knowledge regarding how Arctic organism coped with climatic perturbations and thus, improve our understanding how they will respond to future climatic change.
Construction of Red Fox Chromosomal Fragments from the Short-Read Genome Assembly

The genome of a red fox (Vulpes vulpes) was recently sequenced and assembled using next-generation sequencing (NGS). The assembly is of high quality, with 94X coverage and a scaffold N50 of 11.8 Mbp, but is split into 676,878 scaffolds, some of which are likely to contain assembly errors. Fragmentation and misassembly hinder accurate gene prediction and downstream analysis such as the identification of loci under selection. Therefore, assembly of the genome into chromosome-scale fragments was an important step towards developing this genomic model. Scaffolds from the assembly were aligned to the dog reference genome and compared to the alignment of an outgroup genome (cat) against the dog to identify syntenic sequences among species. The program Reference-Assisted Chromosome Assembly (RACA) then integrated the comparative alignment with the mapping of the raw sequencing reads generated during assembly against the fox scaffolds. The 128 sequence fragments RACA assembled were compared to the fox meiotic linkage map to guide the construction of 40 chromosomal fragments. This computational approach to assembly was facilitated by prior research in comparative mammalian genomics, and the continued improvement of the red fox genome can in turn offer insight into canid and carnivore chromosome evolution. This assembly is also necessary for advancing genetic research in foxes and other canids.
PMUs-Based Voltage Control of Isolated Power Systems With High Penetration of Wind Power

Isolated power systems are constructed to improve the wind power accommodation increasingly. This paper proposes a fast voltage control scheme based on phasor measurement units (PMUs) for isolated power systems with high penetration of wind power. The scheme is able to reduce the fast voltage variations and improve post fault voltage dynamics. Taking an actual isolated power system with high penetration of wind power for aluminum production as an example, a reduced system model has been derived by using PMU measurements. Then, the time delay of PMU measurements is compensated by applying Padé approximation. A fast voltage control model involving the reduced system and time delay compensation is established. The solution to the voltage control problem is formulated as a linear quadratic regulator. The voltage control scheme is mainly obtained by the procedures involving establishing the reduced system with PMU measurements, time delay compensation, and solution of Riccati equation in real time. The actual isolated power system is used to validate the effectiveness of the proposed scheme.
Chapter 2 Cancer Stem Cells in Breast Cancer

A.L. Allan (ed.), Cancer Stem Cells in Solid Tumors, Stem Cell Biology and Regenerative Medicine, DOI 10.1007/978-1-61779-246-5_2, © Springer Science+Business Media, LLC 2011 Abstract Breast cancer is one of the leading causes of cancer-related deaths among women worldwide. While it is highly treatable during the primary stages, the disease is often lethal if it successfully metastasizes. Breast cancer stem cells (CSCs) show distinct similarities to normal breast stem cells, have been shown to be the driving force behind primary tumorigenesis, and are postulated to be the cells responsible for metastasis. Many groups have used the CD44CD24 and/or ALDH phenotype for breast CSC isolation; however, this definition does not apply to all breast cancers and needs further refining. As CSCs have been shown to be therapy resistant, identification of additional markers will aid in the isolation of a pure CSC population, which can then be used to elucidate effective treatments. This chapter will discuss normal breast stem cells, breast CSC identification, the relationship between normal mammary stem cells and breast CSCs, and the clinical implications of the CSC population in breast cancer.
Decreasing Wage Mobility in Germany

Using data from the German Socio Economic Panel (SOEP) for the years 1984 to 2007, this paper analyses the amount, the development and the explanations of wage mobility, as well as volatility in West Germany, measured by ranks in the wage distribution. Individual wage mobility decreased between 1984/1987 and 2004/2007, while inequality increased steadily from the mid 1990s onwards. Mobility is highest in the middle section of the distribution. Better qualified persons, younger persons and employees of larger firms have higher chances of moving upwards. Wages are more volatile in the low-wage sector and for individuals moving downwards in the wage distribution.
A simple and efficient seed-based approach to induce callus production from B 73 maize genotype

The wild type maize genotype, B73, is not amenable for callus production and an efficient protocol for B73 maize callus induction has never been reported up-to-date. Scientific efforts in producing B73 maize callus using all known callus inducible media have been unsatisfactory. Here we developed and described an efficient protocol for callus induction from B73 maize seedlings. The protocol is based on well known callus inducible media CM4C where we have sequentially subtracted some chemical compounds and added some new compounds mediating cell proliferations. This newly described protocol was able to induce callus production in a wide range of crop species including rice and soybean. We found that cell proliferation factors, NAA (auxin analog) and 2,4-D (auxin influx carrier) were not only very crucial but required for positive B73 maize callus induction. The absence of one or the other will lead to the failure of B73 maize callus production. The well known CM4C callus induction composition lacks NAA. Our findings will advance genetic studies of maize mutants generated from B73 genotype background.
Exploring the functional impact of alternative splicing on human protein isoforms using available annotation sources

In recent years, the emphasis of scientific inquiry has shifted from whole-genome analyses to an understanding of cellular responses specific to tissue, developmental stage or environmental conditions. One of the central mechanisms underlying the diversity and adaptability of the contextual responses is alternative splicing (AS). It enables a single gene to encode multiple isoforms with distinct biological functions. However, to date, the functions of the vast majority of differentially spliced protein isoforms are not known. Integration of genomic, proteomic, functional, phenotypic and contextual information is essential for supporting isoform-based modeling and analysis. Such integrative proteogenomics approaches promise to provide insights into the functions of the alternatively spliced protein isoforms and provide high-confidence hypotheses to be validated experimentally. This manuscript provides a survey of the public databases supporting isoform-based biology. It also presents an overview of the potential global impact of AS on the human canonical gene functions, molecular interactions and cellular pathways.
Ocean warming alters predicted microbiome functionality in a common sea urchin

The microbiome of sea urchins plays a role in maintaining digestive health and innate immunity. Here, we investigated the effects of long-term (90 day) exposure to elevated seawater temperatures on the microbiome of the common, subtropical sea urchin Lytechinus variegatus. The community composition and diversity of microbes varied according to the type of sample collected from the sea urchin (seawater, feed, intestines, coelomic fluid, digested pellet and faeces), with the lowest microbial diversity (predominately the order Campylobacterales) located in the intestinal tissue. Sea urchins exposed to near-future seawater temperatures maintained the community structure and diversity of microbes associated with their tissues. However, marginal, non-significant shifts in microbial community structure with elevated temperature resulted in significant changes in predicted metagenomic functions such as membrane transport and amino acid and carbohydrate metabolism. The predicted changes in key metabolic categories suggest that near-future climate-induced increases in seawater temperature could shift microbial community function and impact sea urchin digestive and immune physiology.
Assistance à la réutilisation de scénarios d'apprentissage : une approche guidée par l'évaluation du contexte d'usage à base d'indicateurs. (Assistance in the reuse of educational scenarios : an approach guided by the evaluation of the usage context based on indicators)

Les travaux de these s'inscrivent dans le domaine des Environnements Informatiques pour l'Apprentissage Humain (EIAH). Ils portent sur la proposition de processus, methodes et outils pour assister les enseignants et les formateurs dans la reutilisation et la capitalisation des scenarios d'apprentissage. L'approche proposee nommee CAPtuRe a pour objectif de modeliser, evaluer et exploiter les informations contextuelles relatives a un scenario en se basant sur des observations effectives de ce dernier pour ameliorer la reutilisation.Les problematiques etudiees concernent : (1) l'expression et l'analyse du contexte d'usage, (2) l'evaluation de la pertinence du scenario dans un contexte precis, (3) l'indexation des contextes sur la base de criteres de reussite et d'efficacite du scenario pour la definition de son perimetre de reutilisation et (4) la suggestion proactive de reutilisation.Nous avons commence par la specification d'un cadre global d'ingenierie et de reutilisation de scenarios d'apprentissage. Dans ce cadre, nous avons defini un processus qui specifie le cycle de vie du scenario explicitant la dimension contextuelle et son utilisation dans un environnement de "conception par la reutilisation". Pour operationnaliser ce processus, nous avons defini une approche generique de modelisation de l'information contextuelle enrichie par les indicateurs, une methode d'indexation et un algorithme de calcul de similarites contextuelles pour la selection et la recommandation de scenarios appropries a une situation d'apprentissage cible. Ces contributions ont ete implementees sous la forme d'une plateforme logicielle et appliquees sur des cas d'usage de scenarios hybrides.
Towards a Reconceptualisation of Cyber Risk: An Empirical and Ontological Study

The prominence and use of the concept of cyber risk has been rising in recent years. This paper presents empirical investigations focused on two important and distinct groups within the broad community of cyber-defense professionals and researchers: (1) cyber practitioners and (2) developers of cyber ontologies. The key finding of this work is that the ways the concept of cyber risk is treated by practitioners of cybersecurity is largely inconsistent with definitions of cyber risk commonly offered in the literature. Contrary to commonly cited definitions of cyber risk, concepts such as the likelihood of an event and the extent of its impact are not used by cybersecurity practitioners. This is also the case for use of these concepts in the current generation of cybersecurity ontologies. Instead, terms and concepts reflective of the adversarial nature of cyber defense appear to take the most prominent roles. This research offers the first quantitative empirical evidence that rejection of traditional concepts of cyber risk by cybersecurity professionals is indeed observed in real-world practice.