Miracle-dz/UniFAR-FTUs huggingface dataset:
Clinical Outcomes of Revision Hip Arthroscopy for Synovial Chondromatosis

Background: Synovial chondromatosis (SC) is a relatively rare disease and there were few studies on causes and clinical outcomes of revision surgery for SC. The purpose of this study was to evaluate clinical outcomes of revision hip arthroscopy for synovial chondromatosis.Methods: We evaluated consecutive patients who underwent revision hip arthroscopy for SC in our hospital between January 2008 and January 2020. Radiographic evaluation was made before and after surgery. Preoperative patient-reported outcomes (PROs) and PROs at final follow-up were obtained, including visual analog scale (VAS) for pain, the International Hip Outcome Tool-12 (iHOT-12) and modified Harris Hip Score (mHHS). Results: A total of 8 patients (mean age, 39.5 years; age range, 27-62 years; 5 males and 3 females) were included in this study. The recurrence rate of hip SC in our hospital was 6.8%. The average follow-up period after surgery was 47.3 months (range, 12–120 months). Before surgery, mean mHHS was 60.6±17.3 (range, 20-77), mean iHOT-12 was 43.8±13.7 (range, 18-69), and mean VAS was 3.1±1.7 (range, 1-7). At the final post-operative follow-up, mean mHHS was 83.8±16.6 (range, 43-91), iHOT-12 was 80.6±19.7 (range, 32-90), and mean VAS was 0.6±1.8 (range, 0-5). All results demonstrated statistically significant improvement (P < 0.05). Recurrence of SC was found in 2 patients 1 year and 4 years after revision hip arthroscopy, respectively.Conclusion: Hip arthroscopy had good clinical outcomes for revision surgery of SC.
The effect of mind mapping on the concept comprehension abilities for grade x automotive student of vocational public schools in Sijunjung regency

Concept comprehension abilities is a very important aspect in learning mathematics. The low of concept comprehension abilities will affect the quality of student learning, which in turn has an impact on the low achievement of students in school. This also happened at the Vocational public School in Sijunjung regency. One effort that can be done in reacting to it is through the selection of learning models that can create a learning environment that makes students active. Mind Mapping technique is an alternative to increase student activity in learning. This type of research was quasi-experimental. The instrument used in this study was a test consisting of an initial ability test to see students 'initial abilities consisting of high and low initial abilities, a final test to see students' mathematical concept comprehension abilities. Data was analyzed by using the Mann Whitney U test and two-way ANOVA. Based on the results of data analysis, several conclusions were obtained, namely: (1) The Concept comprehension abilities of students who learn with Mind Mapping Techniques was higher than students who learn with conventional learning; (2) Concept comprehension abilities of high, moderate, and low prior knowledge who learn with Mind Mapping techniques was higher than students who study with conventional learning; (3) there is no interaction between model of learning and prior knowledge.
Effects of Fruit Zone Leaf Removal on Yield, Fruit Composition, and Fruit Rot Incidence of Chardonnay and White Riesling (Vitis viniferaL.) Grapes

Selective leaf removal from grapevine fruit zones was evaluated for three seasons as a means of improving grape quality, especially with respect to fruit rot control. Mature White Riesling (syn. Riesling) and Chardonnay grapevines, grown in two northern Virginia vineyards, were used. Vines were trained to a high (1.8 m above ground), bilateral cordon at one vineyard and a low (1.2 m), bilateral cordon at the other; spur pruning was used at both vineyards. Two treatments, (1) removal of two to four leaves per shoot from around fruit clusters two to three weeks after bloom, or (2) no leaf removal, were compared. Leaf removal increased fruit zone porosity as measured by percentage sunlight penetration, point quadrat analysis, and air-blast spray penetration. Fruit yield components were generally unaffected by leaf removal, although crop per vine and cluster weight were occasionally increased with leaf removal of Riesling. Fruit soluble solids at harvest were reduced slightly in three instances and increased in one, by leaf pulling, while pH and potassium levels remained unaffected. Leaf removal reduced titratable acidity as well as malic acid, although not consistently. The incidence of botrytis and sour bunch rot, as well as the concentrations of rot organism metabolites (glycerol, acetic acid, gluconic acid, and ethanol) in harvested fruit, were reduced with leaf removal of Riesling vines. The chief benefit of leaf removal in this region appeared to be improved bunch rot control with Riesling.
Quantifying Groundwater Recharge Dynamics and Unsaturated Zone Processes in Snow‐Dominated Catchments via On‐Site Dissolved Gas Analysis

Snowmelt contributes a significant fraction of groundwater recharge in snow‐dominated regions, making its accurate quantification crucial for sustainable water resources management. While several components of the hydrological cycle can be measured directly, catchment‐scale recharge can only be quantified indirectly. Stable water isotopes are often used as tracers to estimate snowmelt recharge, even though estimates based on stable water isotopes are biased due to the large variations of δ2H and δ18O in snow and the difficulty to measure snowmelt directly. To overcome this gap, a new tracer method based on on‐site measurements of dissolved He, 40Ar, 84Kr, N2, O2, and CO2 is presented. The new method was developed alongside classical tracer methods (stable water isotopes, 222Rn, 3H/3He) in a highly instrumented boreal catchment. By revealing (noble gas) recharge temperatures and excess air, dissolved gases allow (i) the contribution of snowmelt to recharge, (ii) the temporal recharge dynamics, and (iii) the primary recharge pathways to be identified. In contrast to stable water isotopes, which produced highly inconsistent snowmelt recharge estimates for the experimental catchment, dissolved gases produced consistent estimates even when the temperature of snowmelt during recharge was not precisely known. As dissolved gases are not controlled by the same processes as stable water isotopes, they are not prone to the same biases and represent a highly complementary tracer method for the quantification of snowmelt recharge dynamics in snow‐dominated regions. Furthermore, an observed systematic depletion of N2 in groundwater provides new evidence for the pathways of biological N‐fixation in boreal forest soils.
Bioactivities of candlewood, Zanthoxylum Xanthoxyloides (lam.) solvent extracts against two stored-product insect pests

Bioactivities of candlewood, Zanthoxylum xanthoxyloides (Lam.) solvent extracts on control of Sitophilus zeamais Mots. (Coleoptera: Curculionidae) and Callosobruchus maculatus F. (Coleoptera: Bruchidae) were assessed on maize and cowpea respectively. Of the four solvent extracts investigated, methanol (MeOH) extract gave the highest yield of 75 ± 10.89 %, and caused significant (p 95; Fr = 0).
Effect of Vegetation on the Flow of a Partially-Vegetated Channel

A vegetated channel commonly exists in the natural environment. Over recent decades, many researchers have taken an interest in this field. The hydraulic characteristics of flow over vegetated channels are complex. Vegetation significantly affects the flow resistance and turbulence, resulting in sediments, nutrients, and contaminants transportation. Thus, understanding the impact of vegetation on flow structures is important for river and environment management. However, most attention on vegetated channel flow focuses on single-layered vegetated channels. There are few studies on the impact of double-layered, partially placed vegetation on open channel flow. To fill this research gap, this paper aims to investigate the impact of vegetation on the flow velocity of a double-layered, partially placed vegetated channel.
Dynamic Cross-Correlation between Online Sentiment and Stock Market Performance: A Global View

This paper focuses on investigating the dynamic cross-correlation relationship between online sentiment and returns of major global stock markets based on the MF-DCCA method. We use Daily Happiness (DHS), an index derived from Twitter posts through textual analysis as a proxy of online sentiment. By dividing the global financial markets into developed and developing ones, we are able to test the heterogeneous relationship between stock market performance and sentiment at different economic developing level. Empirical results show that there exists a power-law cross-correlation relationship between financial market and online sentiment in some developed countries and all developing countries, and the relationship is more stable in the developing countries. Moreover, we apply rolling window analysis to capture the dynamic evolution characteristics and find the relationship has a strong consistency over time. Our work provides a much more delicate perspective to test the relationship between online sentiment and financial markets performance and enriches the existing literature.
Piezoelectrically and triboelectrically hybridized self-powered sensor with applications to smart window and human motion detection

In this paper, we demonstrate a hybrid generator, derived from the concurrent adoption of piezoelectric and triboelectric mechanisms in one press-and-release cycle, called a Hybridized Self-Powered sensor (HSPS). A new integration of print circuit board (PCB) technology-based piezoelectric generator (PG) concurrently adopted the direct-write, near-field electrospun polyvinylidene fluoride (PVDF) nano/micro-fibers as piezoelectric source materials. On the other hand, triboelectric nanogenerators have the advantages of a high output performance with a simple structure which is also concurrently combined with the PG. The working mechanism of the HSPS includes the PCB-based substrate mounted with parallel aligned piezoelectric PVDF fibers in planar configuration which first bended and generated the electric potential via the effect of piezoelectricity. In what follows, the deformation of a cylindrical rolled-up piezoelectric structure is exercised, and finally, the triboelectric contact of Cu and PTFE layers .
Do internet stock message boards influence firm value? evidence from China

ABSTRACT This study examines whether Internet stock message boards influence firm value in China. By analyzing data on online posts manually collected from a Chinese stock message board over the period from 2007 to 2018, we find that more online posts lead to greater firm value. Besides, the impact of stock message boards on firm value is more pronounced for firms with higher idiosyncratic risk. We further examine the mechanisms underlying the positive association between online posts and firm value. We find that more online posts contribute to a larger shareholder base and more retail investors’ trading, which potentially increases the degree of investor recognition and therefore enhances firm value. The results are robust to instrumental variable approaches and alternative model specifications. Overall, this study provides a new understanding of the effect of social media on financial market.
On the Nature of F‐Region Bottom‐Type Echoing Layer Over Gadanki

Bottom‐type echoing layers observed from Gadanki are presented and analyzed. The analysis is based on observations made using a substantial database of the 30 MHz Gadanki Ionospheric Radar Interferometer (GIRI) during 2017–2019, collocated digisonde observations, and a few days of overlapping volume observations made using the GIRI and the 53 MHz Advanced Indian MST Radar (AIR) . The echoes commence well before the E‐ and F‐region sunsets and last as late as 23:00 Local Time. The echoing layers occur in the height range of 220–300 km with a thickness of 10–15 km and the Doppler spectra are narrow with spectral width confined to 10 m s−1. The echoing layers are very common during the entire observational period and do not show any noticeable seasonal dependence. The zonal velocities of the irregularities responsible for the radar echoes are close to zero irrespective of the height of the echoing region. The echoes are stronger at 30 MHz than at 53 MHz indicating strong Bragg scale dependence. The height of the echoing layer agrees very well with the height of the F‐region peak electron density (hmF2). Also, early commencement of the echoing layer is found to be associated with low hmF2 and corresponding high electron density (foF2). While the results indicate toward the wind‐driven interchange instability as their origin, the early onset of the echoing layer and its relationship with the background ionospheric parameters call for explanation. The results are discussed in the light of current understanding on the bottom‐type echoing layer.
Aescin Ameliorates Acute Kidney Injury Induced by Potassium Dichromate In Rat: Involvement of TLR 4/ TNF-α Pathway

Acute kidney injury (AKI) exhibited more than 1 million deaths every year worldwide; inflammation has a vital role in AKI development and considered as a risk factor in its progression. Aescin is a natural compound with anti-inflammatory vasoconstrictor and vasoprotective effects. The current study aimed to assess Aescin’s possible renal protective and therapeutic effect on potassium dichromate (PD)-induced AKI in rats. Single injection of PD was causing AKI (15 mg/kg; s.c). Rats were divided randomly into four groups. Group I: Normal control. Group II: Rats injected with PD and served as AKI group. Group III: Rats received a daily injection of Aescin for 2 weeks (3.6 mg/Kg; orally), prior PD injection and group IV after PD injection. Kidney functions, kidney contents of inflammatory and proliferative markers as toll-like receptor4 (TLR4), tumour necrosis factor-alpha (TNF-α), heat shock protein-70 (HSP-70) and insulin growth factor-1 (IGF-1) were estimated. In addition, histopathological examination was performed. Aescin improves kidney functions, alleviated inflammatory and proliferative markers and ameliorated hyaline materials in the Bowman's space and necrosis of proximal convoluted tubules that induced by PD. The present study confirmed the effectiveness of use of Aescin in AKI protection or treatment.
The Competency of Science Teachers in Integrating Higher Order Thinking Skills in Teaching and Learning

The performance of an individual will increase if he has all the competencies required to carry out his duties and responsibilities. This survey study was conducted to identify the competency of science teachers in integrating Higher Order Thinking Skills (HOTS) in teaching and learning. The competency of science teachers is seen in three aspects based on the Iceberg Model which are knowledge, skills and attitude. 39 science teachers from 27 secondary schools in Besut district have responded to the questionnaire instrument disseminated in this study. Descriptive statistics were used to analyse the frequency and percentage of respondent profiles involved. Descriptive statistics were also used to obtain mean and standard deviation to determine the competency level of respondents in HOTS. Analysis shows the level of competency of science teachers in terms of knowledge and attitude is high. The skills aspect shows a moderate level. The study suggested that science teachers did not explore various strategies and approaches in implementing HOTS. The high level of knowledge and attitudes should be manifested through teaching and learning that combines different approaches, questions with various cognitive level and activities that challenge the students’ thinking. This study provides a room for improvement for science teachers in enhancing the quality of teaching and learning and nurturing HOTS in students.
Right ventricular functional recovery depends on timing of pulmonary valve replacement in tetralogy of Fallot: a video kinematic study.

OBJECTIVES METHODS Indications for and timing of pulmonary valve replacement (PVR) after tetralogy of Fallot repair are controversial. Among magnetic resonance imaging indices proposed to time valve replacement, a right ventricular (RV) end-diastolic volume index greater than 160 ml/m2 is often used. Recent evidence suggests that this value may still identify patients with irreversible RV dysfunction, thus hindering recovery. Our goal was to define, using intraoperative video kinematic evaluation, whether a relationship exists between timing of PVR and early functional recovery after surgery. RESULTS Between November 2016 and November 2018, a total of 12 consecutive patients aged 27.1 ± 19.1 years underwent PVR on average 22.2 ± 13.3 years after tetralogy of Fallot repair. Mean RV end-diastolic volume evident on the magnetic resonance images was 136.9 ± 35.7 ml/m2. Intraoperative cardiac kinematics were assessed by video kinematic evaluation via a high-speed camera acquiring videos at 200 fps before and after valve replacement. CONCLUSIONS Patients presenting with RV end-diastolic volume <147 ml/m2 were significantly younger (11.2 ± 5.0 vs 38.4 ± 17.0; P = 0.005) and had a shorter time interval to valve replacement (11.0 ± 5.2 vs 30.1 ± 11.3; P = 0.03). The entire population showed a moderate correlation among energy expenditure, cardiac fatigue, perimeter of contraction and preoperative RV end-diastolic volume index. Both groups showed a reduction in all kinematic parameters after PVR, but those with end-diastolic volume >147 ml/m2 showed an unpredictable outcome.
Radio Constraints of Dark Matter: A Review and Some Future Perspectives

In the past few decades, many studies have analyzed the data of gamma-rays, X-rays, radio waves, electrons, positrons, anti-protons, and neutrinos to search for the signal of dark matter annihilation. In particular, analyzing radio data has been one of the most important and effective ways to constrain dark matter. In this article, we review the physics and the theoretical framework of using radio data to constrain annihilating dark matter. We also review some important radio constraints of annihilating dark matter and discuss the future perspectives of using radio detection to reveal the nature of dark matter.
Improved specific thermomechanical properties of polyurethane nanocomposite foams based on castor oil and bacterial nanocellulose

Bacterial nanocellulose (BNC) was used to synthesize polyurethane foams (PUFs) prepared from castor oil polyol and MDI diisocyanate using water as the blowing agent. The BNC reacted with the isocyanate, increasing the weight content of urethane hard segments (HS). It did not behave as a nucleation agent, forming a nanometric distribution of cells within the struts followed by a reduction of the apparent density (−7.6%) and a relevant increase of cell size in the growth direction (+37.9%). An alignment of the BNC parallel to the cell walls was observed, producing a nanocomposite with a higher reinforcement weight fraction in that area. At only 0.2 wt %, the BNC behaved as a nanostructured reinforcement, improving the specific compression modulus and strength by +4.67% and +23.6%, respectively, as well as the thermomechanical properties, with an improvement of the specific E′ at 30 °C of +52.4%. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44982.
Pengaruh Net Profit Margin, Return On Assets dan Current Ratio Terhadap Pertumbuhan Laba

Penelitian ini bertujuan untuk mengetahui pengaruh Net Profit Margin , Return On Assets , dan Current Ratio terhadap pertumbuhan laba pada perusahaan sub sektor industri semen yang terdaftar di Bursa Efek Indonesia Periode 2014-2018. Populasi dalam penelitian ini adalah perusahaan sub sektor industri semen yang terdaftar di Bursa Efek Indonesia periode 2014-2018. Sampel dalam penelitian ini adalah sebanyak 6 perusahaan sub sektor industri semen yang terdaftar di Bursa Efek Indonesia periode 2014-2018. Metode pengambilan sampel dengan menggunakan teknik purposive sampling. Analisis data yang digunakan adalah analisis regresi berganda. Dari hasil penelitian ditemukan bahwa N et P rofit M argin berpengaruh terhadap pertumbuhan laba, Re turn on A ssets tidak berpengaruh terhadap pertumbuhan laba, C urrent R atio tidak berpengaruh terhadap pertumbuhan laba. Selanjutnya Net Profit Margin, Return On Assets , dan Current Ratio secara simultan berpengaruh signifikan terhadap pertumbuhan laba. Nilai adjusted R square adalah sebesar 20,4% dari pertumbuhan laba pada perusahaan sub sektor industri semen yang terdaftar di BEI dapat dijelaskan oleh N et P rofit M argin , R eturn on A ssets , dan C urrent R atio sedangkan sisanya sebesar 79,6% dipengaruhi oleh variabel lain yang tidak diteliti dalam penelitian ini.
Examining the Educational and Employment Outcomes of Reverse Credit Transfer

Reverse credit transfer (RCT) is an emerging policy designed to award associate’s degrees to students who transfer from 2-year to 4-year colleges after transfer. The purpose of this study is to estimate the impact of RCT degree receipt on students’ university and labor outcomes using data from Texas, where the legislature passed RCT policy in 2011. We find that posttransfer associate’s degree recipients are significantly more likely to persist and attain in universities compared to their peers who were eligible for RCT but did not receive the degree, and these benefits are often larger for students from populations historically marginalized from higher education. However, these estimates are suggestive given the potential of self-selection biasing the estimates upward, and the results are sensitive to moderate bias from unobserved variables. We find limited evidence of additional benefit of these associate’s degrees, which are largely academic and transfer-oriented degrees, on labor outcomes.
Pulsed ultraviolet light decontamination of virus-laden airstreams

ABSTRACT Continuous ultraviolet germicidal irradiation (UVGI) has been extensively studied, but research on pulsed UVGI (PUVGI) is lacking and has primarily focused on disinfection of solid surfaces or liquids. This study addressed the gap in knowledge on the effectiveness of pulsed UVGI for disinfecting virus-laden calm air, with relevance to indoor rooms. Φ6 bacteriophage (a surrogate used to study communicable enveloped human respiratory viral pathogens such as influenza virus) was aerosolized by a Collison device into an enclosed test chamber, wherein the bioaerosol was exposed to PUVGI. The spectral content and performance of a pulsed white light lamp with a substantial UVC component were defined. Pulsed UV exposure of 10 to 30 s resulted in a two-log reduction in viable recovered virus from filter membranes and cyclone-based samplers. The small differences in Φ6 survival, after 10 to 30 s of exposure, emphasized the difficulty of complete eradication. However, exposure to 10 s of PUVGI resulted in significant reduction of virus viability. The dose–response displayed clear regimes of fast and slow exponential decay. Susceptibility factor for the fast-decay regime of aerosolized Φ6 (Z = 0.24 m2/J) was similar to those reported for influenza A virus aerosols at similar relative humidity. Our study demonstrated the potency of PUVGI against a viral bioaerosol. This has potential implications for the control of infectious bioaerosols in the healthcare setting. © 2017 American Association for Aerosol Research