Miracle-dz/UniFAR-FTUs huggingface dataset:
Periodontal wound healing with hyaluronic acid alone or in conjunction with bovine bone graft in the treatment of class II furcation defects: A histologic and histomorphometric study

Aim: The goal of the current study was to evaluate the periodontal wound healing potential of hyaluronic acid alone or in conjunction with bovine bone graft in the treatment of canine class II furcation defects. Materials and Methods: In beagle dogs, class II furcation defects were surgically made in the mandibular premolars. Both open flap debridement (OFD) and hyaluronic acid (HA) were used to address the deficiencies in the HA group and OFD plus hyaluronic acid (HA) and bovine bone graft (BG) in the HA/BG group. The animals were euthanized at 12 weeks to allow for histological analysis. Results: The newly formed bone height in the HA group was (3.94 ± 0.28 mm) and in HA/ BG (4.19 ± 0.37mm), the newly formed bone percentage in the HA group was (73.75 ±6.28) and in HA/BG group was (76.26 ±6.49) and the thickness of the newly formed bone trabeculae in HA group was (0.38 ±0.04) and in HA/BG was (0.47 ±0.06). Statistical analysis showed no significant differences in any of the histomorphometric measures between the HA and HA/BG at (p < 0.05) except for the thickness of the newly formed bone trabeculae that significantly increased in HA/BG group in comparison to HA group (p = 0.013). Conclusions: Within their limitations, the findings of the current study imply that using HA alone or in conjunction with BG promotes periodontal wound healing in surgically induced class II furcation defects.
Cardiopulmonary Profiling of Athletes with Post-Exertional Malaise after COVID-19 Infection—A Single-Center Experience

(1) Background: Cardiopulmonary exercise testing (CPET) has been suggested by the European Society of Cardiology (ESC) for assessing the exercise limitations of apparently healthy individuals, but data on elite athletes regarding this test are scarce. (2) Methods: We analyzed CPET in elite (n = 43, 21.9 ± 3.7 years) and recreational (n = 40, 34.7 ± 13.0 years) athletes with persistent subjective exercise intolerance and post-exertional malaise (PEM) after COVID-19 infection. The primary outcome was the point prevalence of the adequate cardiopulmonary response (ACPR), defined by the presence of all of the following ESC criteria for apparently healthy individuals: (1) >100% of predicted peak oxygen consumption (predVO2peak), (2) VE/VCO2 < 30, (3) no exercise oscillatory ventilation (EOV), and (4) heart rate recovery of ≥12 beats/minute 1 min after exercise termination (HRR1). Results: ACPR occurred more frequently in elite athletes than in recreational athletes (70.0% vs. 39.5%; p = 0.005), mainly driven by the lower VE/VCO2 (<30: 97.7% vs. 65%, p < 0.001). Elite (11.6%) and recreational athletes (22.5%) showing a plateau of O2 pulse did not display ACPR. Conclusions: ACPR was not observed in all recreational and elite athletes with PEM. In particular, perturbed VE/VCO2 and the plateauing of O2 pulse are suitable for quantifying exercise limitations and may identify a high-risk population with long-COVID-19 syndrome who require their training intensities to be adapted.
Couple-group consensus for second-order multi-agent systems with the effect of second-order neighbours’ information

This paper investigates a couple-group consensus problem of second-order multi-agent systems with the impact of second-order neighbours’ information. For systems with/without time delays, couple-group consensus criteria are established in the form of linear matrix inequalities by utilizing both model transformation and stability theories. The main results indicate that the group consensus for multi-agent systems under the effect of second-order neighbours’ information can be achieved based on the premise of a generalized balanced couple. Finally, illustrative examples are presented to demonstrate the effectiveness of the theoretical results.
Broadband negative acoustic radiation force by a soft thin plate patterned with periodical heavy grating

We investigate the acoustic radiation force (ARF) acting on a cylindrical brass particle near a soft thin plate patterned with periodical heavy grating. The existence of negative ARF is confirmed by which the particle near the surface of plate can be pulled backward. In addition, bandwidth for negative ARF in this soft plate system is found to be considerably broader compared with the stiff plate systems usually used in existing works. It is further demonstrated by field distribution analysis that this interesting negative ARF stems from the collective resonant excitation of the antisymmetric intrinsic Stoneley surface waves in the thin plate. Properties of ARF varying with the particle location and particle size are also investigated. The reported negative ARFs will have extensive application in manipulating particles by using of acoustic wave.
Spurious Latent Class Problem in the Mixed Rasch Model: A Comparison of Three Maximum Likelihood Estimation Methods under Different Ability Distributions

Recent research has shown that over-extraction of latent classes can be observed in the Bayesian estimation of the mixed Rasch model when the distribution of ability is non-normal. This study examined the effect of non-normal ability distributions on the number of latent classes in the mixed Rasch model when estimated with maximum likelihood estimation methods (conditional, marginal, and joint). Three information criteria fit indices (Akaike information criterion, Bayesian information criterion, and sample size adjusted BIC) were used in a simulation study and an empirical study. Findings of this study showed that the spurious latent class problem was observed with marginal maximum likelihood and joint maximum likelihood estimations. However, conditional maximum likelihood estimation showed no overextraction problem with non-normal ability distributions.
Microbial taxa related to natural hydrogen and methane emissions in serpentinite-hosted hyperalkaline springs of New Caledonia

The southeastern part of New Caledonia main island (Grande Terre) is the location of a large ophiolitic formation that hosts several hyperalkaline springs discharging high pH (∼11) and warm (<40°C) fluids enriched in methane (CH4) and hydrogen (H2). These waters are produced by the serpentinization of the ultrabasic rock formations. Molecular surveys had previously revealed the prokaryotic diversity of some of these New Caledonian springs, especially from the submarine chimneys of Prony Bay hydrothermal field. Here we investigate the microbial community of hyperalkaline waters from on-land springs and their relationships with elevated concentrations of dissolved H2 (21.1–721.3 μmol/L) and CH4 (153.0–376.6 μmol/L). 16S rRNA gene analyses (metabarcoding and qPCR) provided evidence of abundant and diverse prokaryotic communities inhabiting hyperalkaline fluids at all the collected springs. The abundance of prokaryotes was positively correlated to the H2/CH4 ratio. Prokaryotes consisted mainly of bacteria that use H2 as an energy source, such as microaerophilic Hydrogenophaga/Serpentinimonas (detected in all sources on land) or anaerobic sulfate-reducing Desulfonatronum, which were exclusively found in the most reducing (Eh ref H2 ∼ -700 mV) and the most H2-enriched waters discharging at the intertidal spring of the Bain des Japonais. The relative abundance of a specific group of uncultured Methanosarcinales that thrive in serpentinization-driven ecosystems emitting H2, considered potential H2-consuming methanogens, was positively correlated with CH4 concentrations, and negatively correlated to the relative abundance of methylotrophic Gammaproteobacteria. Firmicutes were also numerous in hyperalkaline waters, and their relative abundance (e.g., Gracilibacter or Dethiobacter) was proportional to the dissolved H2 concentrations, but their role in the H2 budget remains to be assessed. The prokaryotic communities thriving in New Caledonia hyperalkaline waters are similar to those found in other serpentinite-hosted high-pH waters worldwide, such as Lost City (North Atlantic) and The Cedars (California).
Tamaño óptimo de la muestra (Optimum sample size)

Abstract. The basics of sample size estimation process are described. Assuming the normal distribution, the procedures for estimation of sample size for the mean; with and without knowledge of the population variance, and population proportion are noted. Sample size for more than one population feature is also given. Resumen. Se describen los fundamentos del proceso de la estimacion del tamano optimo de la muestra. Suponiendo una distribucion normal para una poblacion, se notan los procedimientos de la estimacion del tamano optimo de la muestra para la media muestral con y sin el conocimiento de la varianza poblacional. Se presenta el tamano optimo de la muestra con mas de una caracteristica poblacional.
Occupational dissatisfaction of nurses during the COVID-19 pandemic: A rising cause for concern of the world's nursing community

Since December 2020, the Coronavirus disease 2019 (COVID-19) pandemic has created many challenges for healthcare work-ers, especially nurses. Since nurses constitute 59% of healthcare workers worldwide, it’s necessary to pay attention to their needs as frontline fighters during COVID-19 pandemic. An extraordi-nary pressure is imposed on nurses due to the sudden onset of the COVID-19 pandemic, which is accompanied by an increase in workload, physical fatigue, disruption of the work-life balance, lack of personal protective equipment, and nurses' fear of being infected with COVID-19 themselves or their families.
Reproductive Output Reveals the Maternal Effects on Offspring Size-Number Trade-Off in Cultured Asian Yellow Pond Turtle (Mauremys mutica)

Simple Summary We explored the effect of maternal size on offspring size and number using a 4-year dataset based on paternity analyses in Asian yellow pond turtle, Mauremys mutica, and found that the maternal size significantly affected the offspring number but not offspring size. The offspring size was significantly correlated with maternal age. Our results suggest that the offspring size-number trade-off theory does not apply to cultured M. mutica and also provides basic data for the efficient artificial breeding management of M. mutica in captivity. Abstract Offspring size-number trade-off is a critical component of life-history theory and is important for further understanding the reproductive strategies of animals. The relationship between this trade-off and maternal size has been explored in several turtle species, except for the Asian yellow pond turtle, Mauremys mutica. To investigate how the maternal condition affects offspring size and number, we explored the relationships among the maternal body size and the number and size of cultured M. mutica hatchlings using a 4-year dataset. Our results showed that different females not only produced different sizes of offspring but also produced different numbers of offspring. No trade-off in egg size number was detected. According to regression analysis, we did not find that the maternal body size significantly influenced the offspring mass; however, we detected that the offspring size was significantly correlated with the clutch size and maternal age. The mean body mass of offspring increased with maternal age, and the clutch size varied significantly over four years, which was correlated with offspring size, maternal body size and age. However, the number of offspring per female increased with the maternal plastron length rather than age. Our results were inconsistent with the optimal offspring size theory in that females did not increase their offspring size but rather increased the offspring number to increase their fitness, which will also provide a basis for the efficient cultivation management of turtles.
Does the BI 7 Days (Reverse) Repo Rate and Exchange Rate Affect Liquidity With Inflation as Intervening Variables on Islamic Commercial Banks in Indonesia?

Introduction to The Problem: According to Islamic commercial bank liquidity data for the last 5 years, Islamic commercial bank liquidity has fluctuated but tends to decrease. the liquidity crisis that occurred in banks causing banks to default on most of their obligations. In the new normal era, Islamic banking liquidity is still faced with challenges and opportunities that need to be considered by Islamic banking industry.Purpose/Objective Study: The purpose of this study is to analyze macroeconomic factors, namely the BI 7 Days (Reverse) Repo Rate and Exchange Rate which affects the Liquidity of Islamic Commercial Banks with Inflation as an intervening variable.Design/Methodology/Approach: This type of research is quantitative research with secondary data of the type of time series data, monthly data from BIDRR, Exchange Rates, Inflation, and Liquidity of Islamic Commercial Banks for five years, namely 2017-2022. The sample used is purposive sampling. The data analysis technique in this study is Partial Least Squares-Structural Equation Model (PLS-SEM). Findings: Based on the results of path analysis both directly and indirectly, this study indicates that variable BI 7 Days Reverse Repo Rate and Exchange rate effect significant to the Liquidity of Islamic Commercial Banks with Inflation as an Intervening Variable, either directly or indirectly.Paper Type: Research Article
Evaluation of pelvic lymph node dissection in endometrial carcinoma

Background : Pelvic and para-aortic lymphadenectomy is suggested to provide prognostic and therapeutic benefits in endometrial carcinoma, particularly in high-risk and advanced tumors. Aim : Herein we compare the oncological and surgical outcomes in patients with and without pelvic lymphadenectomy performed. Patients and Methods: A retrospective study, included endometrial carcinoma patients who underwent hysterectomy at National Cancer Institute, Egypt from January 2013 to December 2017. We divided the patients into two groups according to the documented operative details, one group was subjected to pelvic lymphadenectomy (PLN), and one group had no lymphadenectomy done (No PLN). Results : 90 patients (60 patients had PLN, 30 patients had no PLN). The death rate was higher in the No PLN group compared to the PLN (36.7% vs 20%). The mean overall survival (OS), and disease-free survival (DFS) were nearly equal in both groups. Retroperitoneal nodal recurrence occurred in 6 patients in the PLN group out of 18 recurrences (33.3%) and in 5 patients in the no PLN group out of 11 recurrences (45.5%) with a p-value=0.869. The 5-year DFS in PLN and No PLN groups was 50% and 26.7% respectively, and the 5-year OS in PLN and No PLN groups was 70%, and 60 %, respectively but statistically not significant. Early postoperative complications occurred in 24 patients (40%) in the PLN group and 12 patients (40%) in the No PLN group. Conclusion: Excluding patients with low risk for nodal disease in endometrial carcinoma, pelvic lymphadenectomy may have a positive impact on survival or recurrence patterns.
FINANCIAL DISTRESS DETERMINANTS DURING COVID-19 PANDEMIC: EVIDENCE FROM NON-FINANCIAL FIRMS IN INDONESIA

The COVID-19 pandemic has caused massive bankruptcy for companies in the world. Companies should aware variables signalling aggravated financial distress to give an early-warning system. The objective of this study is to investigate the influence of business strategy, investment policy, and corporate governance to the financial distress. We collect data from the non-financial sector companies in Indonesia. We use logistic regression to test the hypothesis. This research finds that business strategy and female board negatively significant at distress probability, whereas investment policy and board meeting positively significant at the likelihood of financial distress. Further researchers can broaden their scope of investigation to the financial industry and other developing countries.
An assessment on concentrations of No2, So2, Co and their allied health risks alongside Ilorin-Osogbo expressway, Nigeria

This research evaluated in-vehicle and ambient air samples for three pollutants; NO 2 , SO 2 , CO and deduced the air quality index, emission factors and health risk assessments from the pollutants concentrations. The concentrations of these pollutants were measured in-vehicle using two modes of transportation with open-window scenario while ambient measurements covered three hours of the day at six sampling points covering two states along the highway. NO 2, SO 2 and CO concentrations were measured with Altair-5X MGD. Vehicular volume was conducted per 45 minutes and self-administered forms were used to draw health data on the samples. The values of the in-vehicle exposure in μgm -3 ranges from 90 – 1270 NO 2 ; 124-810 SO 2 and 3262-23800 CO. The highest average in-vehicle exposure appeared in cars with the following μgm -3 average NO 2, 426±109; SO 2 571±61 and CO 10433±1650. The Ambient air pollutants results showed that the mean concentrations of NO 2 and SO 2 exceeded the 1-hour averaging time-limit of 40 μ gm -3 set by FEPA but within the 1-hour averaging time-limit set by EPA while the mean concentration of CO falls within minimal limit stipulated by WHO. Air Quality Index was deduced with rating for NO 2 and SO 2 which ranged from good “A” through unhealthy for sensitive group “UHFS’ to hazardous “F” and rating for CO, F across the sampling points. The study established strong evidence that traffic volume affects the quality of air in the atmosphere at all sampling points. Results from questionnaire indicated some key health risks related with contact to pollutants by commuters and other road users.
Selected Problems in Computational Gravity

The author acknowledges support from the Natural Sciences and Engineering Research Council of Canada, from the National Science Foundation of the USA (OCI 0905046, PHY 1212401, PHY 1004848), the ACM/SIGHPC SC15 Student Travel Grant, and the Ontario graduate scholarship. Research at Perimeter Institute is supported by the Government of Canada through the Department of Innovation, Science and Economic Development and by the Province of Ontario through the Ministry of Research and Innovation.
Boussinesq modeling of undertow profiles

ABSTRACT Though Boussinesq-type wave equations are widely used in the nearshore wave field, it is still a challenge for these kinds of equations to describe the velocity profiles along water column after wave breaking occur. For example undertow, plays a key role in generating sandbars, is quite difficult to be simulated by a Boussinesq-type model (usually used in a phase-resolving beach evolution model). The ad-hoc method developed by Lynett ( wave breaking velocity effects in depth-integrated models. Coastal Engineering, 2006, 53(4):325-333. ) seems greatly improve the performance of Boussinesq-type equations for undertow calculation. However this method is a post-processing modification skill, the accurate prediction of undertow profiles greatly depends on the accuracy of predicted wave elevation and depth-averaged velocities before modification. Hence Boussinesq-type equations with fully nonlinear characteristics instead of those with only weak nonlinearity should be used to simulate breaking waves, as proved by many researches that the former could give better results than the later in wave breaking zone. In the present paper, a new set of fully nonlinear Boussinesq equations and the above mentioned ad-hoc method are combined to form a wave breaking model, aiming to simulate the undertow profiles. The model is first validated by simulating regular waves breaking on a plane beach, then the undertow profiles are calculated, numerical results are compared against three available data sets and the performance of wave breaking model before and after modification is detailed discussed.
Evaluation of inductive heating energy of ITER toroidal field conductor by calorimetry

The influence of a fast electromagnetic perturbation, such as plasma disruption, on the ITER toroidal field (TF) coil conductor was studied. When a fast magnetic field change is superimposed, the TF conductor is inductively heated by internally generated eddy currents. To measure the inductive heating (IH) energy amount by calorimetry, an IH experiment using short TF conductor samples with length of 20 cm was performed in a liquid He bath. The sample components used were a TF conductor, TF jacket and a TF conductor cable. A 60-turn, single layer solenoid coil was installed around each sample as an IH coil. Also, the Joule heat of the IH coil was solely measured to subtract its thermal contribution from the other samples. A 1 kHz sinusoidal AC current was applied to each IH coil, changing the current amplitude. The heat generated in the samples, including the IH coil, was eventually absorbed into the liquid He, and the liquid He was then vaporized. Thus, the heat amount was measured by a He level sensor inside a gas collection cylinder attached above the sample. The validity of the experimental results was confirmed by comparing them with computation results of the IH energy of the samples with a computation model. Also, the consumed energy was calculated from the measured waveforms of the applied AC voltage and current to the samples. As the result, the measured and calculated IH energy were found to be in good agreement. Finally, based on the results of the experiment, the minimum magnetic field strength, which triggers quench of the TF conductor by fast dumping like plasma disruption, was evaluated using estimated TF conductor minimum quench energy.
Polar lows in the Labrador Sea : a case study

In this paper, we will describe our analysis of a polar low event that occurred in the Labrador Sea during the winter of 1992. As there are unfortunately no in-situ observations of this event, we will rely on satellite data as well as the high-resolution objective analaysis from the ECMWF to document the environment in which the low developed and the structure of the low itself. We will show that the polar low developed during a cold air outbreak that was precipitated by the passage of an intense synoptic-scale low. The polar low appears to have developed along a linear cloud feature as the result of an interaction between a low-level diabatically induced potential vorticity anomaly and an upper-level potential vorticity anomaly that propagated into the area from the Canadian Arctic. We will also show that with the TOMS and TOVS retrievals for total column ozone, we are able to identify a signature of the upper-level potential vorticity anomaly. In its mature state, we will show that there were very strong winds, and as a result large fluxes of sensible and latent heat, associated with the polar low. In summary, the 1992 Labrador Sea polar low provides one with an excellent opportunity to study air-sea interactions and the coupling between the troposphere and stratosphere. The realization that the strong heating of the atmosphere and the concomitant cooling of the ocean associated with these storms may be sufficient to initiate downwelling events in the ocean may represent a hitherto undocumented link between the fast and slow climate systems that deserves further attention.