Miracle-dz/UniFAR-FTUs huggingface dataset:
The Rationale Behind and Impact of One Hospital’s Provision of Secondary School Athletic Training Services: A Five-Year Case Study

Purpose: Sports-related injuries are common and often require physician or hospital care. Since the advent of concussion laws in fifty states, hospitals across the country have come forward to partner with secondary schools in the provision of sports medicine healthcare. The outreach agreements are consistent: Hospitals hire athletic trainers (ATs) and then outsource them to schools. ATs help mitigate risk in sports programs. Onsite at the schools daily, ATs provide immediate evaluation and treatment for injuries that occur and render decisions regarding the appropriateness of an injured athlete’s return to participation. The goal of this case study was to describe the experiences of one hospital in relation to (a) the factors the contributed to its administration’s decision to provide athletic training services to area schools, (b) the program structure, (c) the annual costs, and (d) the benefits reaped. Methods: This investigation spanned the course of the first five years of the hospital’s partnership with four separate high schools. Interviews with key hospital and school district administrators along with additional tracking of the number of professional medical referrals helped to illuminate the program’s successes. Results: The partnership proved to be a win-win. It strengthened the hospital’s community relations, provided area school sports programs with much-needed medical oversight, and provided a consistent stream of revenue generation via professional medical referrals, both for the hospital and for its affiliated providers. Conclusion: Hospital administrators should look to this example as one that supports the decision to partner with local schools in the provision of athletic healthcare.
Enhancement of vital signals for UWB through-wall radar using nonconvex regularization

ABSTRACT In this paper, an advanced signal processing algorithm based on low-rank sparse representation is proposed to enhance the vital signal in life detection radar applications. The pre-processed echo signal can be decomposed into low-rank, sparse, and noisy parts, where the sparse part is the vital signal. A non-convex regularization method is adopted to obtain the required components, and the approximate solution method is used to accelerate the calculation to meet real-time requirements. Simulated and experimental results show that the proposed algorithm outperforms existing methods in terms of output signal-to-noise ratio (SNR).
The Evolution and Dynamical Role of Reduced Upper-Tropospheric Potential Vorticity in Intensive Observing Period One of FASTEX

Abstract The existence and production of reduced upper-tropospheric potential vorticity (RUPV) by heating is considered. An objective technique is used that identifies anomalies of PV arising from a particular physical process (here latent heat release). The evolution of two RUPV anomalies and a related diabatically increased lower-tropospheric PV (ILPV) anomaly occurring during Intensive Observing Period One of the cyclones from the Fronts and Atlantic Storm Track Experiment (FASTEX) is examined using model analyses, sounding data, and trajectory calculations. Three distinct airflows are identified emanating from the ILPV anomaly each with a different evolution. Results show that RUPV anomalies exist in the atmosphere and, in a weaker form, in numerical models. The dynamical role of RUPV anomalies is examined using a nonlinear balance PV inversion and reruns of the U.K. Meteorological Office Limited Area Model. This shows that instantaneously the flow and temperature perturbations associated with RUPV an.
Entwurf einer genetischen Entwicklungsumgebung zur Diagrammberechnung und -synthese von phasengesteuerten Gruppenantennensystemen

Übersicht Die Entwicklung großer planarer Gruppenantennen (Phased-Array-Antennas) für satellitengestütztes Synthetisches-Apertur-Radar stellt auch heute immer noch eine große Herausforderung dar. Schon in frühen Entwicklungsphasen ist es notwendig, die tatsächlich erreichbare Systemperformance möglichst gut abschätzen zu können, lange bevor die ersten realen Strahler hergestellt werden. Die klassische Theorie der Gruppenantennen stößt dabei schnell an ihre Grenzen, da die getroffenen Vereinfachungen sehr rigoros sind. Die Feldsimulation liefert zwar sehr gute Ergebnisse, sie ist aber mit heutiger Rechnerhardware nur für relativ kleine Antennengruppen anwendbar. Das in diesem Artikel vorgestellte Verfahren beschreitet einen Mittelweg. Es ermöglicht die automatisierte, polarimetrisch korrekte Berechnung und Synthese von Gruppenantennendiagrammen durch Überlagerung beliebiger Einzelstrahlerdiagramme, wobei die geometrische Konfiguration keinen Einschränkungen unterliegt. Verkopplungen und der Einfluß des elektrischen Speisenetzwerks werden mit Mitteln der Mehrtortheorie berücksichtigt. Damit kann der gesamte Designprozeß von ersten Modellen aus einfachen analytischen Einzelstrahlern bis hin zur Modellierung von gemessenen Strahlern und Verkopplungen unter Berücksichtigung des elektrischen Speisenetzwerks unterstützt werden.
Gender Differences in Neuromuscular Control during the Preparation Phase of Single-Leg Landing Task in Badminton

Background: Studies on the biomechanical mechanisms of an anterior cruciate ligament (ACL) injury have been extensively studied, but studies on the neuromuscular control-related risk factors for an ACL injury in specific maneuvers have not been reported for badminton players. Study design: Controlled laboratory study. Methods: Sixteen badminton players (8 male, 8 female) performed a single-leg badminton ball landing task, and lower limb muscle activity, kinematic data, and ground reaction force were measured during this procedure using marker-based movement analysis, force plates, and electromyography (EMG). Gender differences in the lower limb kinematic data, mean values of normalized lower limb muscle activation (MVC%), and co-contraction values during the landing preparation phase (100 ms before initial contact) were analyzed using MANOVA. Results: In the badminton landing task, the knee valgus angle was greater in females than in males (6.27 ± 2.75 vs. 1.72 ± 3.20) in the pre-landing preparation position. Compared to male badminton players, females exhibited greater gluteus maximus (44.92 ± 18.00 vs. 20.34 ± 11.64), rectus femoris (41.56 ± 9.84 vs. 26.14 ± 10.46), and medial gastrocnemius (37.39 ± 17.31 vs. 19.11 ± 11.17) lateral gastrocnemius (36.86 ± 17.82 vs. 13.59 ± 2.71) muscle activity (MVC%). Conclusion: Female badminton players exhibit neuromuscular control strategies that may be inadequate for ACL protection and may be a potential risk factor for a high incidence of ACL injury In the future, when devising injury prevention plans for female badminton players, optimizing neuromuscular control during the pre-landing phase can be targeted.
How Do Birds Sing

Hypotheses are reviewed about how the vocal apparatus of birds operates during singing, focusing especially on the means by which the tonal sounds so typical of birdsong are generated. Evidence for the widely held view that the "two voices" in the songbird syrinx act independently of one another, and independently of acoustic resonances of the vocal tract, is found to be incomplete. Results of several experiments, including effects of placing singing birds in helium air, indicate that coupling of the "two voices" can occur and that changes in vocal tract resonances modify the tonal quality of birdsongs. A new model of songbird phonation is proposed, implying close coordination between the operation of the acoustic sources in the syrinx and dynamic modifications of the vocal tract.
Studying topological structure of 21-cm line fluctuations with 3D Minkowski functionals before reionization

The brightness temperature of the redshifted 21cm line brings rich information on the Inter Galactic Medium (IGM) from the Cosmic Dawn and Epoch of Reionization (EoR). While the power spectrum is a useful tool to statistically investigate the 21cm signal, the 21cm brightness temperature field is highly non-Gaussian, and the power spectrum is inadequate to characterize the non-Gaussianity. The Minkowski Functionals (MFs) are promising tools to extract non-gaussian features of the 21cm signal and give topological information such as morphology of ionized bubbles. In this work, we study the 21cm line signal in detail with MFs. To promote understanding of basic features of the 21cm signal, we calculate the MFs of not only the hydrogen neutral fraction but the matter density and spin temperature, which contribute to the brightness temperature fluctuations. We find that the structure of the brightness temperature depends mainly on the ionized fraction and the spin temperature at late and early stages of the EoR, respectively. Further, we investigate the redshift evolution of the MFs at $7 < z < 20$. Then, we find that, after the onset of reionization, the MFs reflect mainly the ionized bubble property. In addition, the MFs are sensitive to model parameters which are related to the topology of ionized bubbles and we consider the possibility of constraining the parameters by the future 21cm signal observations.
How Ready Can You Be? Profiling Indonesian Teacher’s Preparedness for an Online Teacher Professional Development Program

Online teacher professional development has shown benefits in enhancing and improving teacher competences in providing classroom experiences which eventually may improve student academic achievements (de Kramer et. al, 2012). In designing an effective online teacher professional development, a need analysis needs to be conducted to successfully meet the teachers’ needs and design a program that is based on the teachers’ contexts and the complexities of teachers’ teaching practices. The article reports on the results of the need analysis conducted via survey and focus group discussions to 1544 teachers across Indonesia with the aim to design an online teacher professional development delivered via a Massive Online Open Course (MOOC). The results of the need analysis show that the MOOC needs to be designed carefully in terms of the technical requirements, content, and delivery of the MOOC.
Peak Tibiofemoral Contact Forces Estimated Using IMU-Based Approaches Are Not Significantly Different from Motion Capture-Based Estimations in Patients with Knee Osteoarthritis

Altered tibiofemoral contact forces represent a risk factor for osteoarthritis onset and progression, making optimization of the knee force distribution a target of treatment strategies. Musculoskeletal model-based simulations are a state-of-the-art method to estimate joint contact forces, but they typically require laboratory-based input and skilled operators. To overcome these limitations, ambulatory methods, relying on inertial measurement units, have been proposed to estimated ground reaction forces and, consequently, knee contact forces out-of-the-lab. This study proposes the use of a full inertial-capture-based musculoskeletal modelling workflow with an underlying probabilistic principal component analysis model trained on 1787 gait cycles in patients with knee osteoarthritis. As validation, five patients with knee osteoarthritis were instrumented with 17 inertial measurement units and 76 opto-reflective markers. Participants performed multiple overground walking trials while motion and inertial capture methods were synchronously recorded. Moderate to strong correlations were found for the inertial capture-based knee contact forces compared to motion capture with root mean square error between 0.15 and 0.40 of body weight. The results show that our workflow can inform and potentially assist clinical practitioners to monitor knee joint loading in physical therapy sessions and eventually assess long-term therapeutic effects in a clinical context.
Nucleophosmin promotes lung adenocarcinoma cell proliferation, migration and invasion by activating the EGFR/MAPK signaling pathway

Lung adenocarcinoma (LUAD) is the main cause of death globally. The present study investigated the prognostic value and functional verification of nucleophosmin (NPM1) in LUAD. LUAD and normal samples from The Cancer Genome Atlas were analyzed to identify whether NPM1 is associated with LUAD prognosis. NPM1 protein expression level was verified by western blotting. Cell proliferation, migration and invasion were detected by Cell Counting Kit-8, wound healing and Transwell assays, respectively. EGFR/MAPK pathway-related proteins [phosphorylated (p)-EGFR/EGFR, p-MEK/MEK, and p-ERK/ERK] expression was measured through western blotting. A xenograft tumor mice model was constructed to perform the in vivo verification. NPM1 was upregulated in LUAD cells, and high-level NPM1 indicated poor prognosis in patients with LUAD. In vitro experiments revealed that NPM1 knockdown inhibited LUAD cell proliferation, migration and invasion. Moreover, protein expression of p-EGFR/EGFR, p-MEK/MEK and p-ERK/ERK was reduced with the NPM1 silencing. Furthermore, EGF, an activator of the EGFR/MAPK pathway, reversed the effects of NPM1. In vivo experiments showed that NPM1 knockdown inhibited tumor growth and protein levels of p-EGFR/EGFR, p-MEK/MEK and p-ERK/ERK. NPM1 is related to the poor prognosis of LUAD and promotes the malignant progression of LUAD by activating the EGFR/MAPK pathway. This discovery provides a new potential therapeutic target for the diagnosis and treatment of LUAD.
Stability and Stabilization for Delay Delta Fractional Order Systems: An LMI Approach

The well-known delta fractional calculus is widely used in system analysis and synthesis. However, the irregular stable region brings many unexpected difficulties and challenges. The simple linear matrix inequality (LMI) condition, especially <inline-formula> <tex-math notation="LaTeX">$\alpha \in (1,2)$ </tex-math></inline-formula>, is lacking. This brief constructs a circular region to approximate the true stable region. Afterwards, the sufficient conditions in terms of LMIs are derived. It is shown that the elaborated results are valid and effective.
Teleost Piscidins—In Silico Perspective of Natural Peptide Antibiotics from Marine Sources

Fish, like all other animals, are exposed to constant contact with microbes, both on their skin and on the surfaces of their respiratory and digestive systems. Fish have a system of non-specific immune responses that provides them with initial protection against infection and allows them to survive under normal conditions despite the presence of these potential invaders. However, fish are less protected against invading diseases than other marine vertebrates because their epidermal surface, composed primarily of living cells, lacks the keratinized skin that serves as an efficient natural barrier in other marine vertebrates. Antimicrobial peptides (AMPs) are one type of innate immune protection present in all life forms. AMPs have been shown to have a broader range of biological effects than conventional antibiotics, including antibacterial, antiviral, antiprotozoal, and antifungal effects. Although other AMPs, such as defensins and hepcidins, are found in all vertebrates and are relatively well conserved, piscidins are found exclusively in Teleost fish and are not found in any other animal. Therefore, there is less information on the expression and bioactivity of piscidins than on other AMPs. Piscidins are highly effective against Gram-positive and Gram-negative bacteria that cause disease in fish and humans and have the potential to be used as pharmacological anti-infectives in biomedicine and aquaculture. To better understand the potential benefits and limitations of using these peptides as therapeutic agents, we are conducting a comprehensive study of the Teleost piscidins included in the “reviewed” category of the UniProt database using bioinformatics tools. They all have amphipathic alpha-helical structures. The amphipathic architecture of piscidin peptides and positively charged residues influence their antibacterial activity. These alpha-helices are intriguing antimicrobial drugs due to their stability in high-salt and metal environments. New treatments for multidrug-resistant bacteria, cancer, and inflammation may be inspired by piscidin peptides.
A Wavelet Scattering Approach for Load Identification with Limited Amount of Training Data

The performance of Non-Intrusive Load Monitoring is strongly depending on the choice of features and their ability to uniquely describe the signatures of different appliances. Especially for transfer-learning applications, the invariance of the features with respect to changes in the time domain is crucial. In this article, a two-dimensional wavelet scattering approach for load identification is presented. In detail, time-domain, frequency-domain, and scattering-domain based features are investigated and both 1D and 2D input features are considered, which are evaluated by five different classifiers. It was shown that wavelet scattering outperforms other load identification by 3.7%, while showing robustness to the amount of training data and to the selected sampling frequency.
Age‑adjusted Charlson comorbidity index and in‑hospital mortality in critically ill patients with cardiogenic shock: A retrospective cohort study

Evidence regarding the relationship between age-adjusted Charlson comorbidity index (ACCI) and in-hospital mortality is limited. Therefore, the present study investigated whether there was an independent association between ACCI and in-hospital mortality in critically ill patients with cardiogenic shock (CS) after adjusting for other covariates (age, sex, history of disease, scoring system, in-hospital management, vital signs at presentation, laboratory ﬁndings and vasopressors). ACCI, calculated retrospectively after hospitalization between 2008 and 2019, was derived from intensive care unit (ICU) admissions at the Beth Israel Deaconess Medical Center (Boston, MA, USA). Patients with CS were classified into two categories based on predefined ACCI scores (low, <8; high, ≥8). Based on baseline ACCI, the risk of in-hospital mortality in patients with CS was calculated using a multivariate Cox proportional risk model, and the threshold effect was calculated using a two-piece linear regression model. The in-hospital mortality rate was ~1.5 times greater in the ACCI high group compared with that in the ACCI low group [hazard ratio (HR)=1.45; 95% confidence interval (CI), 1.14-1.86]. Additional analysis showed that ACCI had a curvilinear association with in-hospital mortality risk in patients with CS, with a saturation effect predicted at 4.5. When ACCI was >4.5, the risk of in-hospital CS death increased signiﬁcantly with increasing ACCI (HR=1.122; 95% CI, 1.054-1.194). Overall, ACCI was an independent predictor of in-hospital mortality in ICU patients with CS. A non-linear relationship was revealed between ACCI and in-hospital mortality, where in-hospital mortality increased significantly when ACCI was >4.5.
Homotopy Perturbation Method for Solving Nonlinear Higher-order Boundary Value Problems

In this paper, we apply the homotopy perturbation method (HPM) for solving the nonlinear boundary value problems. The suggested algorithm is quite efficient and is practically well suited for use in these problems. The proposed iterative scheme finds the solution without any discretization, linearization or restrictive assumptions. Several examples are given to verify the reliability and efficiency of the method. The fact that the proposed homotopy perturbation method solves nonlinear problems without using the Adomian's polynomials can be considered as a clear advantage of this technique over the decomposition method. We have also considered an example where the suggested HPM is not reliable.
Micro-Scale Surface Recognition via Microscope System Based on Hu Moments Pattern and Micro Laser Line Projection

The surface engineering of metals develops high technology to detect microscale convex, concave and flat surface patterns. It is because the manufacturing industry requires technologies to recognize microscale surface features. Thus, it is necessary to develop microscopic vision technology to recognize microscale concave, convex and flat surfaces. This study addresses microscale concave, convex and flat surface recognition via Hu moments’ patterns based on micro-laser line contouring. In this recognition, a Hu moments’ pattern is generated from a Bezier model to characterize the surface recovered through microscopic scanning. The Bezier model is accomplished by employing a genetic algorithm and surface coordinates. Thus, the flat, convex and concave surfaces are recognized based on the Hu moments’ pattern of each one. The microscope system projects a 40 μm laser line on the object and a camera acquires the object’s contour reflection to retrieve topographic coordinates. The proposed technique enhances the microscale convex, concave, flat, and surface recognition, which is performed via optical microscope systems. The contribution of microscopic shape recognition based on the Hu moments’ pattern and microscopic laser line is elucidated by a discussion based on the microscopic shape recognition performed through the optical microscopic image processing.
Bifurcation diagram globally underpinning neuronal firing behaviors modified by SK conductance

Neurons in the brain utilize various firing trains to encode the input signals they have received. Firing behavior of one single neuron is thoroughly explained by using a bifurcation diagram from polarized resting to firing, and then to depolarized resting. This explanation provides an important theoretical principle for understanding neuronal biophysical behaviors. This paper reports the novel experimental and modeling results of the modification of such a bifurcation diagram by adjusting small conductance potassium (SK) channel. In experiments, changes in excitability and depolarization block in nucleus accumbens shell and medium-spiny projection neurons are explored by increasing the intensity of injected current and blocking the SK channels by apamin. A shift of bifurcation points is observed. Then, a Hodgkin—Huxley type model including the main electrophysiological processes of such neurons is developed to reproduce the experimental results. The reduction of SK channel conductance also shifts the bifurcations, which is in consistence with experiment. A global bifurcation paradigm of this shift is obtained by adjusting two parameters, intensity of injected current and SK channel conductance. This work reveals the dynamics underpinning modulation of neuronal firing behaviors by biologically important ionic conductance. The results indicate that small ionic conductance other than that responsible for spike generation can modify bifurcation points and shift the bifurcation diagram and, thus, change neuronal excitability and adaptation.
A Comparative Study of Dexamethasone Ointment along with Triamcinolone Acetonide in Treatment of Recurrent Aphthous Stomatitis

Aim: To assess and compare the efficacy of dexamethasone ointment with triamcinolone acetonide, the gel form, in the treatment of minor recurrent aphthous stomatitis (RAS). Materials and Methods: This was a randomized clinical trial of 60 patients of either sex with clinically diagnosed RAS who were randomly divided into two groups—the dexamethasone ointment group (Group I) and the triamcinolone acetonide gel group (Group II). Patients were asked to apply the gel three times a day on each ulcer. Estimation of the efficacy of gel was done based on the time required for regression in pain, size, and number of ulcers. Results: The results showed there was a significant difference in size, pain, number, and duration of ulcers in Group I and Group II within 7 days. However, in both groups, no significant difference was noted in the treatment of RAS. Conclusion: Dexamethasone ointment was found to be efficient in this treatment and was safe as evaluated using clinical assessments.