Miracle-dz/UniFAR-FTUs huggingface dataset:
Combined Scattering of Concurrent Unusual High‐Frequency EMIC Waves and MS Waves on Radiation Belt Electrons

We report a concurrent event of unusual high‐frequency Electromagnetic ion cyclotron (EMIC) and Magnetosonic (MS) waves in correspondence with butterfly distributions for sub‐MeV electrons and flux decay of MeV electrons, observed by Van Allen Probe A on 16 October 2017. The scattering effects are quantitatively investigated by test particle simulations. The results indicate that the unusual EMIC waves mainly scatter electrons from hundreds of keV to several MeV at pitch angles <60° while the MS waves mainly influence sub‐MeV and MeV electrons at pitch angles >60°. Their combined scattering effects are suitably analyzed to be justified as the linear superposition of the effect induced by each wave mode. The Fokker‐Planck simulations exhibit the formation of butterfly pitch angle distributions for sub‐MeV electrons and the obvious flux decay for electrons ∼1.8 MeV at all pitch angles, showing similar variation trends to the observations. Our study suggests that the occurrence of the two waves can significantly influence the electrons over the whole pitch angle range, which can help us better understand the radiation belt dynamics.
Peculiarities of Distance Learning Platforms Usage in Law Enforcement Educational Institutions during the Covid-19 Pandemic

The article reviews the peculiarities of distance learning platforms usage in law enforcement educational institutions during the Covid-19 pandemic. Distance learning at U.S. Federal Law Enforcement Training Center, which is based on the Online Campus have been substantiated. Particular attention is paid to topical issues of training on such online training mod-ules of the Campus: crime scene, driving training, drugs, firearms, health, interviews, investigation, law, topography, maritime training, personal security, technical means, terrorism, stopping vehicles, etc. There are also programs to study the courses "Small Arms" and "Use of Force" in the online training modules of the Campus. The specifics of professional training of border guards in Asian countries have been revealed: the use of platforms of law enforcement agencies; focus of training on the devel-opment of basic competencies and the ability to solve problem situations; the opportunity to take online courses for all categories of staff at a con-venient time; creation of a three-level round-the-clock system of functioning of training of specialists. Peculiarities of professional training of border guards of European countries have been outlined considering the usage of both the platforms of institutions and joint platforms of international organizations, namely: web platform Virtual Aula of Agency FRONTEX; CEPOL DL (e-Net) web platform; European Coast Guard Training (ECGTP) platforms; ILIAS EU Mission EUBAM; Connect & Learn UNHCR; UNODC and others. Special attention is paid to the capabilities of the Virtual Aula web platform for training teachers, instructors, external experts, etc. Web platform Virtual Aula of Agency FRONTEX presents up-to-date information on educational programs conducted in Europe. Characteristics of distance learning platforms usage in higher law enforcement educational institutions in Ukraine have been presented. Distance learning course of the English language for border guards have been developed and implemented. Considerable attention is also paid to the disclosure of online assessment of knowledge: the test of self-control on the topics, modules, and procedure of final assessment.
Vice-Chancellor Pay and Performance: The Moderating Effect of Vice-Chancellor Characteristics

This article investigates the association between UK higher education institutions (HEIs) long- and short-term performance measures, and the pay of vice-chancellors/principals (VCs) in an era of intense neoliberalism/financialisation of HEIs, and consequently ascertains the extent to which the VC pay–performance nexus is moderated by VC characteristics. Using a longitudinal sample of UK HEIs, our baseline findings suggest that HEIs that prioritise meeting long-term social performance targets tend to pay their VCs low pay packages, whereas HEIs that focus on achieving short-term reputational performance targets pay their VCs high pay packages. We show further that the VC pay–performance relationship is moderated/explained largely by VC characteristics. Our findings are robust to controlling for alternative governance mechanisms, endogeneities, alternative performance measures and different estimation techniques. Our findings offer empirical support for optimal contracting and prestige theories with significant implications for the sector.
Attosecond Optical and Ramsey-Type Interferometry by Postgeneration Splitting of Harmonic Pulse

Time domain Ramsey-type interferometry is useful for investigating spectroscopic information of quantum states in atoms and molecules. The energy range of the quantum states to be observed with this scheme has now reached more than 20 eV by resolving the interference fringes with a period of a few hundred attoseconds. This attosecond Ramsey-type interferometry requires the irradiation of a coherent pair of extreme ultraviolet (XUV) light pulses, while all the methods used to deliver the coherent XUV pulse pair until now have relied on the division of the source of an XUV pulse in two before the generation. In this paper, we report on a novel technique to perform attosecond Ramsey-type interferometry by splitting an XUV high-order harmonic (HH) pulse of a sub-20 fs laser pulse after its generation. By virtue of the postgeneration splitting of the HH pulse, we demonstrated that the optical interference emerging at the complete temporal overlap of the HH pulse pair seamlessly continued to the Ramsey-type electronic interference in a helium atom. This technique is applicable for studying the femtosecond dephasing dynamics of electronic wavepackets and exploring the ultrafast evolution of a cationic system entangled with an ionized electron with sub-20 fs resolution.
The use of Tik Tok in higher education as a motivating source for students

This article presents a study conducted at the University of Málaga with the participation of second-year students from the Degree in English Studies. It focuses on a Tik Tok project that the participants had to edit for the British History class in the academic year 2020/2021. The students’ reception of said project as an innovative learning tool, both as applied to English as a second language and to the content of the courses, was analysed and measured using a questionnaire that was elaborated ad hoc and properly validated. Our results indicate great success and acceptance of the activity on the part of the students, who consider that this innovative approach to learning being highly integrated with new technologies fosters the comprehension and active learning of the subject, thus enhancing comprehension in a stimulating and motivating way. Key words: Tik Tok, learning tool, innovative approach, new technologies, motivation.
Interventions to Improve Uptake of Direct-Acting Antivirals for Hepatitis C Virus in Priority Populations: A Systematic Review

Background & Objective Access to Hepatitis C (HCV) care remains suboptimal. This systematic review sought to identify existing interventions designed to improve direct-acting antiviral (DAA) uptake among HCV infected women, people who inject drugs (PWID), men who have sex with men (MSM), and Indigenous peoples. Methods Studies published in high- and middle-income countries were retrieved from eight electronic databases and gray literature (e.g., articles, research reports, theses, abstracts) were screened by two independent reviewers. Identified interventions were summarized using textual narrative synthesis. Results After screening 3,139 records, 39 studies were included (11 controlled comparative studies; 36 from high-income countries). Three groups of interventions were identified: interventions involving patients; providers; or the healthcare system. Interventions directed to patients included care co-ordination, accelerated DAA initiation, and patient education. Interventions involving providers included provider education, telemedicine, multidisciplinary teams, and general practitioner-led care. System-based interventions comprised DAA universal access policies and offering HCV services in four settings (primary care, secondary care, tertiary care, and community settings). Most studies (30/39) described complex interventions, i.e., those with two or more strategies combined. Most interventions (37/39) were tailored to, or studied among, PWID. Only one study described an intervention that was aimed at women. Conclusions Combining multiple interventions is a common approach for supporting DAA initiation. Three main research gaps were identified, specifically, a lack of: (1) controlled trials estimating the individual or combined effects of interventions on DAA uptake; (2) studies in middle-income countries; and (3) interventions tailored to women, MSM, and Indigenous people.
Project and Performance Evaluation on an Optimized 18-Pulse Rectifier With Delta-Differential Connection ATRU and Cascaded Boost Converters for More Electric Aircraft

This paper presents the design and analysis of a special Rectifier Unit (RU) composed of a Delta-Differential Symmetric 18-pulse Autotransformer and cascade Boost converters for applications in More Electric Aircraft (MEA), which is denominated as RU-DDS18PATR+Boost. The cascaded Boost converters provide dc-link regulation, while eliminating the need to use interphase transformers (IPTs), interphase rectors (IPRs), and zero-sequence blocking transformers (ZSBTs), thus contributing toward decreasing the complexity and at the same time increasing reliability. The proposed RU-DDS18PATR+Boost operates with an active current shaping strategy in order to meet the harmonic content restrictions imposed by the DO-160F standard, while allowing for the design of a DDS18PATR with a notable kVA rating of 21.03%. The performance of the RU-DDS18PATR+Boost was analyzed operating in a system with a supply voltage of 115VAC and variable frequency in the range of 360Hz to 800Hz, which is converted to 540VDC. Experimental results are presented corroborating the theory put forward herein, especially with regard to meeting the limits imposed by the DO-160F standard.
Blended Learning in Action: A Practical Guide Toward Sustainable Change

Blended Learning in Action: A Practical Guide Toward Sustainable Change CATLIN TUCKER, TIFFANY WYCOFF AND JASON GREEN • Simple breakdowns of the most effective classroom setups for blended learning. • Tips for leaders. • Ideas for personalizing and differentiating instruction for students through technology. • Strategies for managing devices in classrooms and throughout the school. • Book study questions to facilitate professional development and deeper learning.
A case-control study of ambient heat exposure and urolithiasis among outdoor workers in a shipbuilding company, Guangzhou, China

Higher ambient temperatures will increase heat stress on workers, leading to impacts upon their individual health and productivity. In particular, research has indicated that higher ambient temperatures can increase the prevalence of urolithiasis. This thesis examines the relationship between ambient heat exposure and urolithiasis among outdoor workers in a shipbuilding company in Guangzhou, China, and makes recommendations for minimising the possible impacts of high ambient temperatures on urolithiasis. A retrospective 1:4 matched case-control study was performed to investigate the association between ambient heat exposure and urolithiasis. Ambient heat exposure was characterised by total exposure time, type of work, department and length of service. The data were obtained from the affiliated hospital of the shipbuilding company under study for the period 2003 to 2010. A conditional logistic regression model was used to estimate the association between heat exposure and urolithiasis. This study found that the odds ratio (OR) of urolithiasis for total exposure time was 1.5 (95% confidence interval (CI): 1.2–1.8). Eight types of work in the shipbuilding company were investigated, including welder, assembler, production security and quality inspector, planing machine operator, spray painter, gas-cutting worker and indoor employee. Five out of eight types of work had significantly higher risks for urolithiasis, and four of the five mainly consisted of outdoors work with ORs of 4.4 (95% CI: 1.7–11.4) for spray painter, 3.8 (95% CI: 1.9–7.2) for welder, 2.7 (95% CI: 1.4–5.0) for production security and quality inspector, and 2.2 (95% CI: 1.1–4.3) for assembler, compared to the reference group (indoor employee). Workers with abnormal blood pressure (hypertension) were more likely to have urolithiasis with an OR of 1.6 (95% CI: 1.0–2.5) compared to those without hypertension. This study contributes to the understanding of the association between ambient heat exposure and urolithiasis among outdoor workers in China. In the context of global climate change, this is particularly important because rising temperatures are expected to increase the prevalence of urolithiasis among outdoor workers, putting greater pressure on productivity, occupational health management and health care systems. The results of this study have clear implications for public health policy and planning, as they indicate that more attention is required to protect outdoor workers from heat-related urolithiasis.
Antibiotic Resistance Profiles of Bacteria Isolated from Hotspot Environments in Bahir Dar City, Northwestern Ethiopia

Background Wastes generated from hotspot environments contain a wide range of antibiotics and pathogens that play a significant role in the dissemination of antibiotic-resistant bacteria in the environment. This study was carried out to isolate bacteria from hotspot environments and determine their resistance profiles to commonly used antibiotics in Bahir Dar city, Ethiopia. Methods A cross-sectional study was conducted from October 2020 to June 2021 in Bahir Dar City. A total of 126 waste and wastewater samples were aseptically collected, transported, and processed for bacteriological isolation and susceptibility testing following standard procedures. Results A total of 411 bacterial isolates were recovered and the highest value of 122 (29.7%) bacterial isolates were obtained from medical wastewater samples, and the most frequently isolated bacteria were assigned to the species Escherichia coli with 82 strains (19.5%). The results revealed that the highest resistance profile of 69 (95.8%) was obtained in Staphylococcus aureus against ampicillin and 46 (86.8%) Citrobacter spp. against tetracycline. Two hundred and sixteen (52.6%) of bacteria showed multi-drug resistance and the highest multi-drug resistance was observed in Pseudomonas spp. 47 (65.3%), followed by Escherichia coli 51 (62.2%). The highest resistance profile of 12 (85.7%) and 60 (74.1%) for tetracycline were obtained from beef waste and wastewater and medical wastewater samples. The highest multi-drug resistance was recorded in isolates isolated from beef waste and wastewater samples 11 (64.7%), followed by medical wastewater samples 84 (64.1%). Even though a higher (>0.2) multi-antibiotic resistance index was found in all hotspot environments, the highest multi-antibiotic resistance index (0.477) was recorded in bacteria isolated from medical wastewater. Conclusion It was concluded that wastes generated from hotspot environments and released in the environment contain large numbers of antibiotic-resistant, multidrug, extensively, and pan-drug-resistant bacteria. Proper waste management strategies should be established.
How to keep the current flowing? factors contributing to the longevity of directed motivational currents

Directed motivational currents (DMCs) depict long-term, heightened engagement in pursuit of a highly desired future identity. While the core theoretical underpinnings of the construct are well-established and it is possible to observe a growing research interest in inducing real-time currents, especially in the foreign language (FL) context, little is known regarding the specific factors contributing to the untypical longevity of DMCs, as the currents are believed to cover timescales of months or even years. This mixed-method study is therefore an attempt to fill the void in the DMC-related research. Following the initial phase of the investigation, which sought to identify prospective DMC cases amongst 247 students of English as a foreign language (EFL) at private language schools, thematic analysis was applied to scrutinise the exact nature of DMC experiences identified. The investigation showed that the flow of motivational energy within the DMC superstructure might be occasionally obstructed by both mental and physical exhaustion and, thus, re-triggering mechanisms are required to maintain the intensity of motivational surges. Two primary factors contributing to the longevity of DMCs were identified, namely the growth of learners’ agency and the re-emergence of one’s superordinate goal.
An On-Body Matched Differentially-Fed Magneto-Electric Dipole Antenna for Head Imaging Systems

An on-body matched differentially-fed magneto-electric (ME) dipole antenna is proposed for the head imaging system to detect intracranial hemorrhage (ICH). The ME dipole with its differential feed achieves a wide impedance bandwidth of 137% from 0.45 GHz to 2.4 GHz. The antenna exhibits unidirectional and symmetrical radiation patterns in the near-field region, leading to a stable main beam toward the 2D imaging domain inside the human head. The high front-to-back ratio (FBR) above 18 dB is realized in the whole frequency band by this antenna. The values of specific absorption rate (SAR) always remain safe level under 0.82 W/kg in the entire band with an input power of 10 dBm. To validate the detection capability of the proposed antenna, a head imaging system composed of eight antenna elements in a co-polarization state is designed and fabricated. The reconstructed two-dimensional images of the head interior using a confocal imaging algorithm demonstrate the successful detection and localization of the circular bleeding area as small as 3 mm in radius numerically and 5 mm in radius experimentally, and it has the capability to detect multiple bleeding areas of the human brain, which indicates the head imaging system has the potential to be used in clinical trials.
Internal Operational Metrics and Center for Medicare and Medicaid Services Hospital Compare Quality Ratings

ABSTRACT The Center for Medicare and Medicaid Services (CMS) has made several refinements to their model for calculating hospital quality star ratings (Hospital Compare) amidst criticism and evidence of bias against some institutions. We argue that the CMS model does align with important internal quality metrics and encourage a measured approach to redesign, potentially using categorizations or tiers, rather than a complete abandonment of the ratings system. We find that institutional characteristics (available resources, average severity of illness, and academic affiliation) are associated with internal quality metrics related to patient flow. Furthermore, regression results from the original and revised CMS star rating methodologies suggest that patient flow metrics (discharges before noon [p < .01] and weekend discharges [p < .001]) have a positive relationship with the Hospital Compare rating. Hospitals with better patient flow, as measured by higher levels of discharges before noon and weekend discharges, are associated with higher CMS quality ratings. These findings suggest that CMS star ratings do reflect key aspects of operational performance, specifically efforts to improve patient flow, but the ranking system should consider hospital characteristics that influence internal operations as we move toward a system capable of quality and price transparency for consumers.
A Hierarchical Regionalization-Based Load Shedding Plan to Recover Frequency and Voltage in Microgrid

In microgrids, where the holistically centralized techniques do not meet the speed requirement, regionalization can be a viable solution to improve and speed up protection and control applications. This paper presents a fast regionalized approach to mitigate the microgrid voltage and frequency deviations simultaneously. The regionalization technique is on the basis of a multidimensional distance criterion known as Mahalanobis index which can be executed at several load levels in a parallel manner. In contrast to the existing district-based methods which lead to unified areas from the geographic point of view, the new technique regionalizes the network without enforcing geographic distance condition, with more degree of freedom. This feature assures faster and more effective voltage and frequency recovery. Since the load model inlfuences the voltage and frequency of the grid particularly in abnormal conditions, a hybrid load model dedicated to low-voltage distribution systems is employed here. To appraise and compare the performance and accuracy of the proposed plan with an existing one, the standard IEEE 37-bus distribution system is assayed. The steady state results and dynamic responses attest to the superiority of the proposed plan and guarantee satisfactory fulfillment for real-world practices.
Septotemporal variation in modulation of synaptic transmission, paired-pulse ratio and frequency facilitation/depression by adenosine and GABAB receptors in the rat hippocampus

Short-term synaptic plasticity represents a fundamental mechanism in neural information processing and is regulated by neuromodulators. Here, using field recordings from the CA1 region of adult rat hippocampal slices, we show that excitatory synaptic transmission is suppressed by strong but not moderate activation of adenosine A1 receptors by 2-Chloro-N6-cyclopentyladenosine (CCPA) more in the dorsal than the ventral hippocampus; in contrast, both mild and strong activation of GABAB receptors by baclofen (1 μM, 10 μM) suppress synaptic transmission more in the ventral than the dorsal hippocampus. Using a 10-pulse stimulation train of variable frequency, we found that CCPA modulates short-term synaptic plasticity independently of the suppression of synaptic transmission in both segments of the hippocampus and at stimulation frequencies greater than 10 Hz. However, specifically regarding the paired-pulse ratio (PPR) and frequency facilitation/depression (FF/D) we found significant drug action before but not after adjusting conditioning responses to control levels. Activation of GABABRs by baclofen suppressed synaptic transmission more in the ventral than the dorsal hippocampus. Furthermore, relatively high (10 μM) but not low (1 μM) baclofen concentration enhanced both PPR and FF in both hippocampal segments at stimulation frequencies greater than 1 Hz, independently of the suppression of synaptic transmission by baclofen. These results show that A1Rs and GABABRs control synaptic transmission more effectively in the dorsal and the ventral hippocampus, respectively, and suggest that these receptors modulate PPR and FF/D at different frequency bands of afferent input, in both segments of the hippocampus.