Miracle-dz/UniFAR-FTUs huggingface dataset:
Research on the Influence of Communication Time-Delay on Multi-agent System Based Distributed Energy Dispatching Control Consensus

Multi-agent based distributed control methods are widely applied in distributed energy dispatching control. However, the control processes are highly dependent on the information interaction among the distributed generation units through the communication network. The communication time-delay would affect the performance and stability of the multi-agent based distributed energy dispatching control system. To investigate the effect of communication time-delay on the dispatching control, the incremental cost rate in the economic dispatch model is adopted as consensus variables of multi-agent system, and a multi-agent system with communication time-delay based distributed energy dispatching control consensus algorithm is proposed. Moreover, two cases simulations are implemented and the effects of the time-delay on the consensus convergence are analyzed. This work provides a reference for the optimal design of distributed energy dispatching control.
Fake It ‘Til You Make It: A Natural Experiment to Identify European Politicians’ Benefit from Twitter Bots

Social media giants stand accused of facilitating illegitimate interference with democratic political processes around the world. Part of this problem are malicious bots: automated fake accounts passing as humans. However, we lack a systematic understanding of which politicians benefit most from them. We tackle this question by leveraging a Twitter purge of malicious bots in July 2018 and a new dataset on Twitter activity by all members of national parliaments (MPs) in the EU in 2018. Since users had no influence on how and when Twitter purged millions of bots, it serves as an exogenous intervention to investigate whether some parties or politicians lost more followers. We find drops in follower counts concentrated among radical right politicians, in particular those with strong anti-EU discourse. This is the first set of empirical, causally identified evidence supporting the idea that the radical right benefits more from malicious bots than other party families.
Intercultural Communication and Language Pedagogy

Learning a new language offers a unique opportunity to discover other cultures as well as one's own. This discovery process is essential for developing 21st-century intercultural communication skills. To help prepare language teachers for their role as guides during this process, this book uses interdisciplinary research from social sciences and applied linguistics on intercultural communication for designing teaching activities that are readily implemented in the language classroom. Diverse language examples are used throughout the book to illustrate theoretical concepts, making them accessible to language teachers at all skill levels. The chapters introduce various perspectives on culture, intercultural communicative competence, analyzing authentic language data, teaching foreign/second languages with an intercultural communication orientation, the intercultural journey, the language-culture-identity connection, as well as resolving miscommunication and cultural conflict. While the immediate audience of this book is language teachers, the ultimate beneficiaries are language learners interested in undertaking the intercultural journey.
Risk Mitigation Strategies in Implementing Scrum Framework for Internet-Based IT Companies in Indonesia

To date many Information Technology Companies in Indonesia implement Scrum Framework which is one of the frameworks that uses Agile principles. The implementation of the Scrum Framework does not guarantee that these companies will be free from risk, since many risks will also appear during the implementation of the framework itself. Therefore, risk management strategies are needed to mitigate these risks. This research is a qualitative research to manage risk due to the implementation of Scrum Framework in software development of IT companies, especially in Indonesia. Interviews have been conducted to the Scrum stakeholders in three IT Companies to gather some initial data to be analyzed further using Qualitative Indonesian Journal of Information Systems (IJIS) Vol. 3, No. 1, August 2020 51 Rahayu, Indrawan, Kamarudin (Risk Mitigation Strategies in Implementing Scrum Framework for Internet-Based IT Companies in Indonesia) Content Analysis Method and Risk Breakdown Structure. Our finding shows that there are 17 Risk Registers and their Mitigation Strategies for the implementation of Scrum Framework in Indonesian IT Companies. Furthermore, it can be used as guidelines for decision making about whether to implement this framework in their core businesses.
An Analysis of Metaphorical Frame of News Reports in Mainstream Media--Take the Coverage of People’s Daily in 2019 as an Example

This paper takes 35 “one country, two policies” reports in People’s Daily from June to August 2019 as the research object, and analyzes them with conceptual metaphor and frame theory. It is found that there are seven metaphorical categories in the report, mainly war, kinship and bridge. The People’s Daily's evaluation of “one country, two policies” includes negative and positive evaluation, which reflects the media's attitude towards the policies of indifference to the masses; positive evaluation reflects the media's attitude towards political officials and the masses to uphold the “one country, two policies” policies, jointly safeguard national security, and give full affirmation to the ideology of fighting against the power of discord.
Hardware Implementation of a Softmax-Like Function for Deep Learning

In this paper a simplified hardware implementation of a CNN softmax-like layer is proposed. Initially the softmax activation function is analyzed in terms of required numerical accuracy and certain optimizations are proposed. A proposed adaptable hardware architecture is evaluated in terms of the introduced error due to the proposed softmax-like function. The proposed architecture can be adopted to the accuracy required by the application by retaining or eliminating certain terms of the approximation thus allowing to explore accuracy for complexity trade-offs. Furthermore, the proposed circuits are synthesized in a 90 nm 1.0 V CMOS standard-cell library using Synopsys Design Compiler. Comparisons reveal that significant reduction is achieved in area × delay and power × delay products for certain cases, respectively, over prior art. Area and power savings are achieved with respect to performance and accuracy.
Changes in thermal quality of the environment along an elevational gradient affect investment in thermoregulation by Yarrow’s spiny lizards

Body temperature affects physiological processes and, consequently, is assumed to have a large impact on fitness. Lizards need to thermoregulate behaviourally to maintain their body temperature within a range that maximizes performance, but there are costs associated with thermoregulation. The thermal quality of an environment directly affects the amount of time and energy that must be invested by an individual to maintain an optimal body temperature for performance; time and energy are major costs of thermoregulation. According to Huey and Slatkin’s (Q. Rev. Biol. 1976, 363) cost–benefit model of thermoregulation, lizards should only thermoregulate when the benefits outweigh the costs. Thus, in habitats of poor thermal quality, lizards should invest less into thermoregulation. We tested the hypothesis that the thermal quality of an environment dictates investment in thermoregulation across an elevational gradient. Increases in elevation are accompanied by decreases in temperature and therefore thermal quality. We recorded body temperatures of Yarrow’s spiny lizards (Sceloporus jarrovii) at ten talus slopes along an elevational gradient of over 1000 m. We found a significant positive relationship between elevation and effectiveness of thermoregulation, opposite to the prediction of the cost–benefit model of thermoregulation. This suggests that the disadvantages of thermoconformity may be greater than the costs of thermoregulating as habitats become more thermally challenging.
14-Residue peptaibol velutibol A from Trichoderma velutinum: its structural and cytotoxic evaluation

Velutibol A (1), a new 14-residue peptaibol was isolated from the Himalayan cold habitat fungus Trichoderma velutinum. The structural characterization was carried out by 1D and 2D NMR studies, and tandem mass studies, and Marfey's method aided in determining the stereochemistry of the amino acids. The CD analysis revealed folding of the peptide in a 310-helical conformation. The intramolecular H-bonding was determined by an NMR-VT experiment. Cytotoxic evaluation was carried out against a panel of cancer cell lines. The cell cycle assay was carried out on human myeloid leukaemia (HL-60) cells and revealed the formation of apoptotic bodies and DNA damage in a dose-dependent manner. Three other peptaibols namely velutibol B (2), velutibol C (3), and velutibol D (4) were also isolated in trace amounts from the psychotropic fungus and characterized through tandem mass spectroscopy and Marfey's analysis.
Mannheim’s peritonitis index a more simpler prognostic index than APACHE II score

Background: The study was done with the aim to determine the clinical profile of patients with hollow viscous perforation and to compare MPI and APACHE II score Methods: This study was a prospective and retrospective observational study conducted in the department of General Surgery, Gandhi Medical College and associated Hamidia Hospital from the June 2017 to August 2019The possible score ranges from 0-47. All necessary preoperative data was recorded. Blood sample was taken and relevant blood investigations were done. Patients were resuscitated with iv fluids. Nasogastric tube and urinary cather insertion were done. The parameters of modified APACHE II score and Manheim’s peritonitis index were recorded at the time of admission. Patients underwent emergency laprotomy and correction of pathology was done. Results: Out of total 100 patients 79% were males, 21% were females, majority 45% belonged to the age group 26-35 years. To calculate the cut off point for mortality ROC curve was constructed. ROC curve analysis predicted that Manheim’s score of 22 or more would predict mortality. Out of total 16 deaths, 14 cases had Manheim’s score of 22 or more thus, giving the score a sensitivity of 87.5% and specificity of 77.38% and overall accuracy of 79% in our study. ROC also predicted that APACHE II score of 15 or more would predict mortality. Thus, giving APACHE II score a sensitivity of 93.75%, specificity of 100% and accuracy of 99%. Conclusions: We consider MPI to be a more simpler prognostic indicator than APACHE II score.
An Endonasal Incision Adds a Second Vector of Manipulation During Percutaneous Reduction of Fractures Involving the Frontonasal Region

Study Design: A case report. Objective: To describe a modification of percutaneous reduction of frontal sinus and/or naso-orbito-ethmoid (NOE) fractures, adding an endonasal intercartilaginous incision to provide a second vector of manipulation. Methods: Case report with particular attention paid to surgical technique, followed by a brief review of relevant literature. Results: Technique: A Carroll-Girard screw is used to engage the thickest part of the anterior wall of the frontal bone through a stab incision just superior to the frontonasal junction. An endonasal intercartilaginous incision is then made and a Cottle elevator is introduced to manipulate the fracture from the inferior aspect of the frontonasal junction. The percutaneous screw and the endonasal elevator provide perpendicular vectors for manipulation, thereby improving ability to reduce fractures when percutaneous traction alone is not successful. The technique is described here in a patient with anterior table frontal sinus fractures combined with posteriorly displaced Markowitz type 1 NOE fractures. Conclusion: While percutaneous reduction of frontal sinus fractures has been previously described, this report adds a subtle but important modification both in indication and technique for optimizing reduction while maintaining surgical simplicity and minimizing morbidity.
Implications of BRCA-loss phenotype in epithelial ovarian carcinoma

Loss of BRCA1/BRCA2 function through genetic or epigenetic mechanisms is common in epithelial ovarian carcinomas (EOC), but because there are multiple potential mechanisms of loss, the overall frequency is unknown. We characterized loss of BRCA1/BRCA2 at the DNA, R N A and protein level from an unselected, consecutive series 49 non-mucinous, invasive EOC. BRCAl-loss was found in 21/49 tumors (43%). These included 8 tumors from patients with BRCA1 germline mutations, 1 tumor with a somatic BRCA1 mutation and 12 tumors (24%) that showed BRCAl-loss without evidence of BRCA1 mutation. Three tumors that contained BRCA2 mutations (2 germline/1 somatic) did not exhibit BRCAl-loss . The histopathology of the tumors showing BRCAl-loss was high-grade serous or undifferentiated carcinoma in every case (even in the absence of mutations) with 21/38 high-grade serous/undifferentiated EOC showing BRCAl-loss. None of the 11 tumors of non high-grade serous type (5 endometrioid, 4 clear cell, and 2 low-grade serous) exhibited BRCAl-loss . High-grade serous/undifferentiated EOC with BRCAl-loss showed different immunophenotype compared to those without BRCAl-loss (p53+, p21-, cyclin D1-). Progress in the treatment of EOC requires appropriate in vivo models to assess novel targeted therapeutic agents, such as the ability of Poly(ADP-ribose) polymerase (PARP) inhibitors to selectively damage BRCAl-nu l l tumor cells. We evaluated the genetic/phenotypic stability of primary human gynecological tumors grown as serially transplanted xenografts in NOD/SCID mice. Transplantable tumor lines were derived from 5 tumors, and serially transplanted for 2-6 generations. Comparisons were made between primary tumor and corresponding transplantable xenografts. Genetic stability was suggested by unsupervised hierarchical cluster analysis of a 287 feature comparative genomic hybridization array. Phenotypic stability was suggested by immunohistochemistry using antibodies against EGFR, HER2, HER3, IGF-IRp, Mucinl , E-cadherin, P-catenin, and V E G F . Analysis of a
Coalescent Theory of Migration Network Motifs

Natural populations display a variety of spatial arrangements, each potentially with a distinctive impact on genetic diversity and genetic differentiation among subpopulations. Although the spatial arrangement of populations can lead to intricate migration networks, theoretical developments have focused mainly on a small subset of such networks, emphasizing the island-migration and stepping-stone models. In this study, we investigate all small network motifs: the set of all possible migration networks among populations subdivided into at most four subpopulations. For each motif, we use coalescent theory to derive expectations for three quantities that describe genetic variation: nucleotide diversity, FST, and half-time to equilibrium diversity. We describe the impact of network properties on these quantities, finding that motifs with a large mean node degree have the largest nucleotide diversity and the longest time to equilibrium, whereas motifs with small density have the largest FST. In addition, we show that the motifs whose pattern of variation is most strongly influenced by loss of a connection or a subpopulation are those that can be split easily into several disconnected components. We illustrate our results using two example datasets—sky island birds of genus Brachypteryx and Indian tigers—identifying disturbance scenarios that produce the greatest reduction in genetic diversity; for tigers, we also compare the benefits of two assisted gene flow scenarios. Our results have consequences for understanding the effect of geography on genetic diversity and for designing strategies to alter population migration networks to maximize genetic variation in the context of conservation of endangered species.
Prototype twin vacuum disk metering unit for improved seed spacing uniformity performance at high forward speeds

The objective of this study was to design and develop a prototype twin vacuum disk metering unit so that seeding can be achieved at higher forward speeds while reducing the peripheral speed of the vacuum disk for improved seed spacing uniformity performance and increased field work capacity. In order to meet this objective, a new precision seeding unit with twin vacuum disks, each being a mirrored view of the other and geometrically the same, was designed in animated drafting software and then it was manufactured and used for the laboratory experiments. Three crop seeds were used to determine the performance of the new metering unit in the lab on a sticky belt test stand. Two alternative measures were used to quantify the seed spacing accuracy, and polynomial functions using the principles of response surface methodology were developed to calculate the optimum level of the variables. The tests performed in the laboratory at 2, 3, and 4 ms –1 forward speeds resulted in improved seed spacing accuracy values, while the quality of feed index measure went down once the forward speed increased from 2 to 4 ms –1 . The quality of feed index with the new metering unit was obtained to be 100% at 2 ms –1 , while it was almost 98% for all crop seeds at 3 ms –1 . The forward speed of 4 ms –1 resulted in quality of feed index values of 92%, 96%, and 96% for cotton, sunflower, and corn seeds, respectively.
A rare but serious complication of ticagrelor therapy: a case report

Abstract Background Ticagrelor is a widely used P2Y12 inhibitor and represents a fundamental therapeutic agent in acute coronary syndrome treatment and selected post-percutaneous coronary intervention (PCI) cases. Dyspnoea and bradycardia are the most common side effects but the latter has been reported to be of trivial clinical significance Case summary A 51-year-old gentleman underwent PCI to left anterior descending and obtuse marginal for unstable angina receiving a loading dose of ticagrelor (180 mg). During hospital stay, whilst on telemetry monitoring, a 16 s long, symptomatic, asystolic ventricular standstill was recorded prompting ticagrelor interruption and a switch to prasugrel. Discussion Despite ventricular pauses have been reported in dedicated analyses of Phase III trials, no apparent clinical consequences were documented. However, several reports have shown that significant brady-arrhythmic events might be linked to ticagrelor administration presenting both as sino-atrial and atrio-ventricular conduction disturbances. We report a case of asystole occurring 36 h after the administration of a loading dose.
A Passed Test Case Cluster Method to Improve Fault Localization

Coverage-Based Fault Localization (CBFL) techniques are based on the conjecture that the program elements executed by more failed test cases and less passed test cases have more chance to be faulty. Coincidental Correct (CC) test case is one of the negative impacts on CBFL, for the reason that the CC test cases execute the faulty element but not propagate the faulty status to the final output. To alleviate the negative impact of CC test cases, in this paper, we propose a cluster-based technique to identify CC test cases from the passed test suite. To evaluate the effectiveness of our method, we conduct empirical studies on 102 versions from six programs. The experimental results show that, when using our method, it can accurately recognize CC test cases, where the precision and recall rate are both higher than 85%. A further study shows that, after removing identified CC test cases, the fault localization accuracy of SBFL can be improved apparently.
Vulnerability and Decision-Making in Multispecies Fisheries: A Risk Assessment of Bacalao (Mycteroperca olfax) and Related Species in the Galapagos’ Handline Fishery

Marine fish populations can be vulnerable to overfishing, as a response of their life history, ecology, and socio-economic aspects. Vulnerability assessments, in this regard, can be used to support fisheries decision-making by aiding species prioritization. Assessments like Productivity–Susceptibility Analyses are well suited for multispecies fisheries, with low gear selectivity and insufficient fishery-independent and dependent data. Using this method, we assessed local vulnerability of the Galapagos grouper (‘bacalao’; Mycteroperca olfax) and compared it with other phylogenetically-related species caught in the Galapagos’ handline-fishery. Bacalao is an overfished regionally endemic fish species, characterized by low resilience, high market and cultural value and high spatial overlap with the fishery. Our results suggested that bacalao is a species of high management priority, requiring urgent measures to prevent fisheries’ collapse. In addition, if current fishing pressure persists, other related species may become threatened in the near future. We also evaluated different management scenarios using this approach. Results suggested that the inclusion of additional no-take zones in the marine reserve, comprising key nursery habitats (such as mangroves) and spawning aggregation sites, would be necessary to reduce species vulnerability and to benefit other related species. Improving enforcement and fishers’ compliance are essential to guarantee the effectiveness of these measures.
Tradespace Exploration of Electrified Propulsion and More-Electric Aircraft Generators

The ongoing quest for higher electrical power on board electrified aircraft propulsion systems and more-electric aircraft is placing significant importance and challenges on rightly designed electric machines. As the power growth trend continues, the availability of robust and lightweight megawatt-class generators is critical. The design for these high-power generators provides significant challenges compared to present needs, and therefore a better understanding of the feasible generator design space and potential trade-offs between suitable efficiency, specific power, and performance requirements is necessary. Understanding this tradespace helps to reduce risk in generator development and allows for improved coordination between generator designers and aircraft-system integrators. To help achieve this goal, a Generator Design Tool has been developed by the Air Force Research Laboratory. It is a population-based design tool for wound-field synchronous machines that applies a genetic algorithm in order to perform multi-objective optimization to minimize mass and loss. The optimization relies on a magnetic equivalent circuit model to assess the machine’s performance and ensure that all design requirements are fully satisfied. The tradespace exploration capabilities of the tool are leveraged to investigate trends in the size and performance of generator designs for electrified aircraft and more-electric aircraft. Trade-offs in number of poles, mass versus loss, and in setting various design constraints are investigated. Limitations in high-speed operation and possible options for opening up the design space to higher speeds while potentially adding complexity and risk in the design were explored.