Miracle-dz/UniFAR-FTUs huggingface dataset:
Spatial input-output analysis of large-scale structures in actuated turbulent boundary layers

This paper develops a spatial input–output approach to investigate the dynamics of a turbulent boundary layer subject to a localized single frequency excitation. This method uses one-way spatial integration to reformulate the problem in terms of spatial evolution equations. The technique is used to examine the eﬀect of localized periodic actuation at a given temporal frequency, based on an experimental set-up in which an active large-scale is introduced into the outer layer of a turbulent boundary layer. First, the large-scale structures associated with the phase-locked modal velocity ﬁeld obtained from spatial input-output analysis are shown to closely match those computed based on hot-wire measurements. The approach is then used to further investigate the response of the boundary layer to the synthetically generated large-scale. A quadrant trajectory analysis indicates that the spatial input-output response produces shear stress distributions consistent with those in canonical wall-bounded turbulent ﬂows in terms of both the order and types of events observed. The expected correspondence between the dominance of diﬀerent quadrant behavior and actuation frequency is also observed. These results highlight the promise of a spatial input-output framework for analyzing the formation and streamwise evolution of structures in actuated wall-bounded turbulent ﬂows.
A modification of the Ponseti method for clubfoot management: a prospective comparative study

Abstract Purpose We aimed to compare our parent-based exercise programem's efficacy with the foot abduction brace (FAB) Ponseti manipulation as a retention programme. Methods We conducted this prospective multicentre cohort study between August 2009 and November 2019. The included children were allocated into one of two groups according to the retention protocol. The Pirani and Laaveg-Ponseti scores were used to assess the feet clinically and functionally. Radiological assessment was performed using standing anteroposterior and lateral radiographs of the feet. We assessed the parents’ satisfaction and adherence to the retention method. SPSS version 25 was used for the statistical analysis. Results A total of 1265 feet in 973 children were included. Group A included 637 feet managed with FAB, while group B included 628 feet managed with our retention programme. All patients were followed up to the age of four years. At the final follow-up, Pirani scores in group A participants were excellent, good and poor in 515, 90, and 32 feet, respectivel, while in group B the scores were excellent, good and poor in 471, 110 and 44 feet, respectively. The mean total score of Laaveg-Ponseti was 87.81 (sd 19.82) in group A and 90.55 (sd 20.71) in group B (p = 0.02). Group B participants showed higher satisfaction with the treatment method (p = 0.011) and more adherence to the treatment (p = 0.013). Conclusion The deformity's recurrence related to the brace's non-compliance in the Ponseti method might be reduced by substituting the brace with our home-based daily stretching exercises. Level of Evidence II
Overview of the challenges and solutions for 5G channel coding schemes

ABSTRACT 5G is the next generation of mobile communications networks which will use cutting-edge network technologies to deliver enhanced mobile connectivity. 5G has introduced new requirements for channel coding in its three different service classes which are enhanced mobile broadband (eMBB), ultra-reliable low latency communications (URLLC) and massive machine-type communications (mMTC). eMBB is expected to keep up with consumer’s insatiable demand for high mobile data rates to support data-extensive applications. mMTC will provide connectivity to a massive number of connected devices sending short data packets simultaneously to support applications such as Internet of Things (IoT). Finally, URLLC will ensure reliable low latency connectivity to support mission-critical latency-sensitive applications such as telesurgery. To address these new requirements, several new channel coding schemes are being developed. This review article provides a detailed analysis of the new channel coding challenges set out by 5G. A detailed review of existing and emerging solutions is provided. Moreover, simulation are performed to assess the performances of Low-Density Parity-Check (LDPC) codes and Polar codes used in 5G’s eMBB. Directions for future works and new solutions for 5G channel coding are also discussed.
Textbook Mediation in EFL University Students’ Learning

Driven by the concept of mediation, this study is set out to use sociocultrual theory as the theoretical framework to explore the mediation role of textbooks, specifically, the series Northstar in English as a Foreign Language (EFL) university classes in Vietnam. Learning journals with guided questions are employed to collect data on how different aspects of English textbooks assist students’ learning in the classroom. Besides, transcripts of recorded classroom obervations are analysed to interpret how the textbooks formulate and faciliate students’ ideas related to the given tasks and generate their interaction in both the target language and the mother tongue. It is found from the students’ journals that the textbooks assist them in understanding the lesson contents and the images help them with visualizing the lessons. Besides, the students make use of the tasks/activities when practising language skills, especially the listening skill. The transcripts reveal the process in which students refer to their previous knowledge related to the topics/tasks provided in the textbooks to interact with one other. More speficially, the tasks and the ideas of other group members mediate more thoughts of the students, leading to collective knowledge construction and task completion. From the findings, recommendations for the use of textbooks in the framework of sociocultrual theory are put forward.
Race, School Discipline, and Magnet Schools

School environment plays an important role in student outcomes. Increasingly, research has also highlighted the role school environment plays in the White–Black suspension gap. We test whether magnet schools reduce the White–Black suspension gap using data from Tulsa Public Schools. Using student-level and incident-level data from Tulsa, Oklahoma, we explore whether Black students receive exclusionary discipline at lower rates in magnet schools than in traditional schools compared with White students. Using matching techniques to minimize selection bias, we find that magnet schools in Tulsa are associated with a reduction in the racial suspension gap. In magnet schools in Tulsa, we do not find a racial gap in severity of incident or days assigned.
The Recent Emergence of Arctic Amplification

Arctic Amplification is robustly seen in climate model simulations of future warming and in the paleoclimate record. Here, we focus on the past century of observations. We show that Arctic Amplification is only a recent phenomenon, and that for much of this period the Arctic cooled while the global‐mean temperature rose. To investigate why this occurred, we analyze large ensembles of comprehensive climate model simulations under different forcing scenarios. Our results suggest that the global warming from greenhouse gases was largely offset in the Arctic by regional cooling due to aerosols, with internal climate variability also contributing to Arctic cooling and global warming trends during this period. This suggests that the disruption of Arctic Amplification was due to a combination of factors unique to the 20th century, and that enhanced Arctic warming should be expected to be a consistent feature of climate change over the coming century.
Is Deliberation an Antidote to Extreme Partisan Polarization? Reflections on America in One Room

This paper is positioned at the intersection of two literatures: partisan polarization and deliberative democracy. It analyzes results from a national field experiment in which more than 500 registered voters were brought together from around the country to deliberate in depth over a long weekend on five major issues facing the country. A pre–post control group was also asked the same questions. The deliberators showed large, depolarizing changes in their policy attitudes and large decreases in affective polarization. The paper develops the rationale for hypotheses explaining these decreases and contrasts them with a literature that would have expected the opposite. The paper briefly concludes with a discussion of how elements of this “antidote” can be scaled.
In vivo toxicity and biodegradation studies in mimicked biological media of bare and functionalised haematite nanoparticles

Bare and functionalised haematite nanoparticles (NPs) are synthesised through the co-precipitation method and characterised using XRD, SEM, TEM, EDX, FTIR, and VSM. XRD confirmed the rhombohedral-based hexagonal structure of Fe2O3, while, TEM and SEM showed the formation of lamellar-shaped NPs with the grain size varied from 22 to 80 nm. VSM presented soft ferromagnetic behaviour. From in vivo evaluations, changes in serum levels are analysed at different days of study after administration of bare and coated NPs through the intraperitoneal route of administration in albino rats. Toxicity parameters revealed a transient increase at day 1 but a gradual decrease thereafter. For biodegradation studies, NPs exposure in lysosomal-like medium showed insignificant changes in the absorbance spectrum for a short interval of time, however, dynamical degradation effects were observed on Day 8. Apoferritin studies disclose the growth of absorbance near 260 nm, which reveals progressive and partially filled proteins with iron ions. GRAPHICAL ABSTRACT
A Study on How the Five Senses Are Affected When Tourists Experience Towns with Forest Characteristics: An Empirical Analysis Based on the Data of Fujian, Guangdong and Sichuan in China

Senses are the primary channel by which travelers enjoy tourism, and the sensory experience of tourists is very important to the quality of their tourism experience. In this study, 385 questionnaires were distributed to tourists visiting the first batch of characteristic towns classified by the China National Forestry and Grassland Administration as national towns with forest characteristics. SPSS software was used for regression analysis to test the differences in the impact of sensory experience on the experience quality and future loyalty of forest town tourists. The results show that: (1) vision makes the highest contribution to the quality of tourist experience; (2) olfactory experience makes the lowest contribution to the quality of tourist experience and has no significant impact on it; (3) auditory experience has a significant impact on the quality of tourism experience but has no significant impact on the loyalty index. The study further confirms that, when a single sensory experience of tourists is insufficient, satisfaction can be achieved through the other senses. It is of great significance for forest town managers to design a sensory landscape according to the combined components of a destination’s characteristics and the tourists’ physical identities.
Joint Dynamic Innovation and Pricing Decisions for the ODM Supply Chain

More and more companies in the supply chain choose the cooperation mode of original design and manufacturing (ODM). This paper investigates the problems of the joint design innovation and pricing strategies for the ODM supply chain by considering the impact of the dynamic of quality level on market demand. First, applying differential game theory, optimal strategies for design innovation, and pricing under decentralized and centralized scenarios are obtained. At the same time, the optimal strategies under the two decision-making scenarios are compared and analyzed. Second, a two-part tariff contract is introduced to coordinate the decentralized ODM supply chain. Finally, we further establish a Nash bargaining model among members of the supply chain. It is found that, in a centralized system, the design innovation efforts, product quality levels, and supply chain profits in the decentralized decision scenario are lower than that in the centralized decision scenario, but the selling price relationship in both scenarios depends on the parameters of the operating system.
High rates of anticoagulant rodenticide exposure in California Barred Owls are associated with the wildland–urban interface

ABSTRACT Pesticide use is pervasive and the exposure of non-target wildlife has been well documented over the past half-century. Among pesticides, anticoagulant rodenticides (AR) have emerged as a particularly important threat in forests of the western United States, with exposure and mortality reported for several species of conservation concern. To further quantify this threat, we collected specimens of Barred Owls (Strix varia) and Barred Owl x Spotted Owl hybrids from the Klamath and Cascade Mountains and Sierra Nevada in California, USA to use as indicator species for environmental contamination with AR and to infer exposure of closely related and ecologically similar Northern and California Spotted Owls (S. occidentalis caurina, and S. o. occidentalis, respectively). We tested 115 Barred Owl and 12 Barred Owl x Spotted Owl hybrid livers for 8 AR compounds and found high rates of exposure (62%) across our study area, and greater than previous studies in the Pacific Northwest. In addition, we sampled 7 ovaries from 7 females and 100% tested positive for AR. Female Barred Owls were more likely than males to be exposed (78% and 50%, respectively). Unlike previous studies, we found no clear link between illegal cannabis cultivation and AR exposure. However, Barred Owls sampled in proximity to the wildland–urban interface (WUI) were more likely to be exposed to AR. Though the exact source (e.g., cannabis cultivation or application around human dwellings) and location are unknown, the association of AR exposure with the WUI was supported from GPS data from Barred Owls, Northern and California Spotted Owls, and hybrids using the WUI for foraging. The high rate of AR exposure in Barred Owls and hybrids provides mounting evidence of an additional stressor that ARs may pose to Spotted Owls—including the first evidence for California Spotted Owls—and fauna native to western forest ecosystems. LAY SUMMARY Anticoagulant rodenticides have emerged as an important threat in forests of the western United States, and it is vital to understand how and where wildlife is exposed. As indicator species for Spotted Owl exposure, we screened 115 Barred Owls and 12 Barred Owl x Spotted Owl hybrids, collected from northern California, USA for 8 anticoagulant rodenticides. 62% of owl specimens (72 Barred and 7 hybrid) were exposed to anticoagulant rodenticides, in particular to the acutely toxic, second-generation class. Females and owls sampled close to the wildland–urban interface were more likely to be exposed to anticoagulant rodenticides. GPS-tagged Barred and Spotted Owls commonly foraged in the wildland–urban interface, suggesting Spotted Owls are also likely at risk of exposure. The high rate of AR exposure in Barred Owls and hybrids provides mounting evidence of an additional threat to Spotted Owls.
Estimating the Region of Attraction for Power Systems Using Gaussian Process and Converse Lyapunov Function

The significant penetration of renewable energy resources into power systems introduces intermittent disturbances that drive the system away from its stable operating point (i.e., equilibrium). Nevertheless, as long as the system states are still contained inside a region of attraction (ROA), the system will finally return to the normal operating equilibrium. Thus, the ROA plays a crucial role in the stability assessment of dynamical power systems under uncertainties. This brief introduces a novel framework to construct the ROA of a power system centered around a stable equilibrium by using stable state trajectories of system dynamics. Most existing works on estimating ROA rely on analytic Lyapunov functions, which are subject to two limitations: the analytic Lyapunov functions may not be always readily available and the resulting ROA may be overly conservative. This work overcomes these two limitations by leveraging the converse Lyapunov theorem in control theory to eliminate the need for an analytic Lyapunov function and learning unknown Lyapunov functions with the Gaussian process (GP) approach. In addition, a GP upper confidence bound (GP-UCB)-based sampling algorithm is designed to reconcile the tradeoff between the exploitation for enlarging the ROA and the exploration for enhancing the confidence level of the sample region. Within the constructed ROA, it is guaranteed in the probability that the system state will converge to the stable equilibrium with a confidence level. Extensive simulations and experimental validations are conducted to substantiate the assessment approach for the ROA of IEEE test systems and a real smartgrid using phasor measurement unit (PMU) data. It is demonstrated that the proposed approach can significantly enlarge the estimated ROA compared to that of the analytic Lyapunov counterpart.
Private ordering of public processes: How contracts structure participatory processes in urban development in Amsterdam and Hamburg

The use of contracts to achieve public goals has been gaining traction since the 1980s. In this article, I investigate the implications of the increased use of private law instruments for participatory democracy. This study starts with problematising the notion of contracts and proposes a conceptual model to study contractual relations in participatory processes. Next, through a detailed description of two case studies in Amsterdam and Hamburg, I show the consequences of contractual governance for participatory democracy in urban development. Namely, the interests of commercial parties and government agencies are incorporated in contracts, whereas the interests of residents are incorporated in non-legal agreements. This has four implications for our understanding of participatory democracy and urban politics. First, the arena of public decision making has shifted from public meetings to contractual negotiations. Second, contracts are not set in stone. Mobilisation by residents can influence, adjust and politicise agreements. However, third, residents need to be able to mobilise and negotiate. This creates new boundaries between residents who are able to make deals and those who are excluded. Lastly, investigating how contracts transform urban politics should take a broad view on how contractual relations are formed and focus on both non-legal and contractual agreements.
Heavy versus extreme rainfall events in southeast Australia

Focussing on the major cities of Brisbane, Sydney, and Melbourne in southeast Australia, this study seeks to determine the environmental factors that distinguish between heavy rainfall events (HREs) and extreme rainfall events (EREs). Using daily rain gauge observations, HREs and EREs are defined for each domain based, respectively, on the 95th and 99th percentiles of wet‐day rainfall for the period 1979–2018. K‐means clustering is applied to mean sea‐level pressure, data from ERA5 to obtain a set of representative large‐scale circulation patterns associated with these events. Composite synoptic maps, mean vertical profiles, and a series of column‐integrated diagnostics are then examined for each cluster and used to compare the environmental characteristics of HREs and EREs. For all three cities, HREs are associated with an upper‐level trough to the west, with large‐scale ascent, positive column water vapour (CWV) anomalies, and strong moisture transport over the analysis domain. For Brisbane and Sydney, the clusters are characterised by a coastal trough/low with moist onshore flow from the Tasman and Coral Seas. For Melbourne, circulation patterns are more distinct, with clusters characterised by a front, a cut‐off low, and an inland trough. Compared with HREs, EREs show a more amplified upper‐level trough, with stronger vertical motion and larger CWV anomalies over the analysis domain. In Brisbane and Sydney, EREs also feature stronger and deeper onshore flow, promoting enhanced moisture transport. A diagnostic termed upward vapour transport, which combines the key ingredients of high CWV and large‐scale ascent, is shown to discriminate well between HREs and EREs in all three domains. In contrast, surface temperature, which is frequently linked to rainfall extremes via Clausius–Clapeyron scaling, shows significant overlap between the different event categories, particularly for Brisbane and Sydney.
Effect of colloidal particleson the foamability and stabilization of aqueous foams by cationic surfactant CTAB

Colloidal particles can influence the foamability and stabilization of aqueous foam by addition of surfactant at the air-water interface. This occurs because particles are activated via the interaction with surfactant and are adsorbed onto the surfaces of foams. This phenomenon has been applied extensively to the development of new materials and techniques. Whether particle surface can be activated or not is decided by the interaction between the surfactant and the particle. In this work, we studied the effects of cationic surfactant CTAB (cetyltrimethylammonium bromide) on PS (polystyrene), SiO2, and TiO2 particles in aqueous solution, and compared the difference in their surface activation according to foam volume of the particles/CTAB/water system, and the degrees of foamability and foam stabilization. In addition, the influence of anionic surfactant SDS (sodium dodecyl sulfate) on the surface activation of PS in aqueous solution was also analyzed and compared with that of CTAB.
ADD It Up: An Evaluation of Antibiotic Duration at Hospital Discharge at a Community Hospital

Abstract Background According to the Centers for Disease Control and Prevention, patients admitted to the hospital are commonly discharged on antibiotic therapy with prolonged courses of therapy, which contributes to excessive antibiotic exposure and adverse events. The purpose of this study was to evaluate total antibiotic duration of therapy at hospital discharge at Indiana University Health Arnett, White Memorial, and Frankfort hospitals. Methods A multicenter, retrospective electronic health record review was conducted from 1 January to 30 June 2019. Patients were included if they were at least 18 years of age, began antibiotic therapy while admitted, and continued antibiotic therapy at hospital discharge for 1 of the following indications: skin/soft tissue infection (SSTI), urinary tract infection (UTI), community-acquired pneumonia (CAP), or acute exacerbation of chronic obstructive pulmonary disease (AECOPD). The number of days of therapy (DOT) of each inpatient and outpatient antibiotic prescribed was collected to calculate the total DOT, which was utilized to determine the appropriateness of the duration of therapy. Results Of the 547 patients included, 233 patients (42.6%) had CAP, 120 (21.9%) had UTI, 101 (18.5%) had SSTI, and 93 (17%) had AECOPD. The median duration of antibiotic therapy across all indications was 9 days (interquartile range [IQR], 7–11). Median duration for CAP was 9 days (IQR, 7–10), AECOPD was 7 days (IQR, 5–9), UTI was 8 days (IQR, 6–10), and SSTI was 12 days (IQR, 10–14). Conclusions Excess antimicrobial duration at hospital discharge represents an unmet need of antimicrobial stewardship programs.