Miracle-dz/UniFAR-FTUs huggingface dataset:
EFFECT OF LEMON AROMATHERAPY IN PREGNANT WOMEN ON EMESIS GRAVIDARUM: A LITERATURE REVIEW

Introduction: Pregnancy is a physiological event for a woman and in the first months of pregnancy, there is a feeling of nausea and vomiting (gravidarum emesis). Emesis complaints occur in 60-80% of primigravida and 40-60% of multigravida. Emesis gravidarum if not treated immediately can develop into hyperemesis gravidarum and can result in reduced fluids in the body, thus endangering the health of the mother and the development of the fetus. The purpose of this study is to examine scientific articles which discuss lemon aromatherapy in pregnant women to reduce emesis gravidarum. Methods: The method used in this study is a literature review with data collection techniques using PubMed and Scholar based on inclusion criteria, among others, the intervention in the form of giving lemon aromatherapy, using the quasi-experiment or pre-experimental design or literature review method, using Indonesian and English, published within 10 years (2017-2022). Keywords in the literature review used when searching “Pregnancy” AND “Emesis Gravidarum” OR “Lemon Aromatherapy”. Results: There were 37 journal articles found, and 9 articles that met inclusion criteria were reviewed. The results showed that based on the study conducted, can be seen that has the effect of giving lemon aromatherapy to reduce emesis gravidarum in pregnant women. This will stimulate the release of the beta-endorphin hormone to reduce the production of vomiting stimuli so that complaints of emesis gravidarum can be reduced. Conclusions: The provision of lemon aromatherapy given to pregnant women who experience mild to moderate emesis gravidarum can have an effect in the right way and technique. Lemon aromatherapy is given 2-3 drops, dripped onto tissue or cotton for 5-10 minutes, with 3 breaths. The application of lemon aromatherapy is expected to be applied in health and family services as a complementary therapy to reduce emesis gravidarum in pregnant women.
Optimizing the phase matching in high-order harmonics generation

This paper presents an experimental method to realize the best high-order harmonics generation (HHG) phase matching in the interaction of strong optical field with gas target. By studying the effects of the relative location between gas target source and the Gaussian-shaped driving femtosecond laser field focus on the harmonics yield, conclusions are obtained that the optimum position of gas target for phase matching is always behind the of the focal point of the driving field, with much lower HHG yield before the focus caused by serious harmonics phase mismatch. Meanwhile, with optimum harmonics phase matching, the high-order harmonics field that resulted has the similar Gaussian-shaped spatial distribution characteristics with the driving field, verifying experimentally the commonly used assumptions for attosecond laser pulse based on HHG. This optimization method is also suitable both for other driving field with different spatial distribution of light intensity and other type of target source. The results here have important guiding significance for high harmonic generation and high harmonic isolated attosecond pulse technology.
Hydrodynamic drag reduction in turbulent boundary layer flow using riblets

Reducing the hydrodynamic drag of marine vessels is a key approach to decrease energy consumption. In addition to saving fuel costs, this also decreases greenhouse gas emissions. One possible method to reduce turbulent drag for a ship is coating its hull with riblets. Riblets are micro-fabricated structures whose design is based on shark skin. Earlier riblet studies have reported maximum drag reduction of 10%. The goal of the present work is to accurately measure the drag of 3 different riblet coatings in the cavitation tunnel. This setup, located at the Ship Hydromechanics group of the TU Delft generates a turbulent boundary layer for freestream velocities between 0.3 and 3.5 [m s ]. Two steps were taken to achieve this goal. Firstly an accurate measurement procedure was developed, which allows 1% accurate drag reduction studies in the cavitation tunnel. This procedure is then sub-sequently used to study the 3 different riblet coatings. These were provided by Fraunhofer IFAM and Oce, who used a mould pressing and elevated printing technology respectively. Cavitation tunnel measurements were analysed using the propagation of uncertainty and Particle Imaging Velocimetry[PIV]. The former determines the contribution of individual measuring sensors to the uncertainty of the measured drag reduction. It was found that the velocity and drag force require the longest measuring time to guarantee statistically converged results. PIV studies were used to determine the correct magnitude of the freestream velocity, as the pressure sensor of the cavitation tunnel systematically overestimated the freestream velocity. Measurements for the supplied coatings showed drag reduction for all plates. For Fraunhofer IFAM maximum drag reduction amounted to 7%, while for Oce this value is 5%. Comparing with values from literature shows slight under performance. This is presumably caused by small manufacturing effects on the riblet surface. To improve current work, the velocity region where accurately can be measured must be enlarged. This is because the expected optimal performance for the Oce and Fraunhofer IFAM coatings are located before and beyond this region respectively. For the low limit velocities, small ranged force and velocity sensors should provide more accurate results. For high velocities entrained air must be removed from the setup. This can be done using a vacuum pump, although more analyses on this system is required as the measured drag is affected by this device.
The magnet effect of price limits: evidence from high-frequency data on the stock exchange of Thailand

Commonly, daily prices limits are widely used for stabilizing stock markets and decrease volatility during overreaction period. However, regulators may not notice that instead of stopping panic sell or overbought, the daily price limits generate a magnet effect, which cause the price to accelerate to the price limits and increase the overall volatility. This research investigates the magnet effect of price limits using high frequency from the Stock Exchange of Thailand. Using AR(2)-GARCH(2,2) as a base model for each stock’s 5-mins returns to capture the effect. The empirical results present evidence of the strong ceiling magnet effect at all conditions, while only some stock’s characteristics find the evidence on the floor magnet effect. When combined volatility changes with the magnet effect, there is evidence to conclude an increase in volatility during price close to the price limits and after stock’s price hit the price limit.
The Incidence of Needlestick Injuries During Perineorrhaphy and Attitudes Toward Occurrence Reports Among Medical Students

Background : Medical students are at risk of needlestick injuries (NSIs) while performing obstetrical procedures especially perineorrhaphy, because of their less experience. This study aims to determine the incidence and causes of NSIs during perineorrhaphy and medical students’ attitudes toward occurrence reports. Methods : A cross-sectional study was conducted. After completion of Obstetrics & Gynaecology rotation, the data from final year medical students were collected using a self-administered questionnaire. Results : Of 390 medical students, 290 (74.4%) returned questionnaires with complete data. The annual NSIs incidence during episiotomy was 26.9%. The most common site of injury was the index finger of the non-dominant hand (66.2%). Common causes of NSIs were time pressure (52.1%) and lack of surgical skills (50.7%). Nearly half of students (41%) did not report their occurrence, and 81.3% of injured students believed that NSIs were harmless. Conclusion : The incidence of NSIs during perineorrhaphy and the non-reporting occurrence were quite high among medical students. Structural clinical supervision by medical staffs, HBV vaccination for all medical students, and instruction on standard pre-exposure precaution should be applied. We advocate a strategy plan for increasing students’ awareness and having a simple occurrence reporting system for NSIs, with clear guidelines on post-exposure protocols in all medical schools and teaching hospitals.
IRRIGATION WATER MANAGEMENT AND TILLAGE LEVELS FOR POTATO PRODUCTION UNDER HEAVY SOIL CONDITIONS

The study was carried out at the Experimental Farm of Moshtohor Faculty of Agriculture, Benha University during the winter seasons of 2018 /2019 and 2019/2020 to evaluate the efficiency of surface drip irrigation system for saving water under three irrigation water management strategies (full irrigation requirement (FI) of crop evapotranspiration (ETc) (control), sustainable deficit irrigation (DI) 75 and 50 % of FI,), yield and fruit quality of potato cultivar “Spunta” under different tillage levels (zero, 25, 50 and 100%) tillage depths. The results confirmed that the conversional tillage (100%) (40-50 cm depth) has the best effect on plant growth and yield among all tillage levels. The DI of 75% had the highest growth and yield parameters in both seasons. Respect to the interaction, potato plants
The natural brackets on couples of vector fields and 1-forms

All natural bilinear operators transforming pairs of couples of vector fields and 1 -forms into couples of vector fields and 1 -forms are found. All natural bilinear operators as above satisfying the Leibniz rule are extracted. All natural Lie algebra brackets on couples of vector fields and 1 -forms are collected.
Melt-Based Additive Manufacturing of Polyolefins Using Material Extrusion and Powder Bed Fusion

Abstract Polyolefin-based thermoplastics such as polyethylene and polypropylene constitute a major fraction of the polymers employed in commodity applications due to their ease of processability, durability, and economic viability. Additive manufacturing (AM) of polyolefins offers both a viable path toward functional prototyping of design concepts and direct manufacturing of end-use parts. Melt-based AM of polyolefins is more challenging than other semicrystalline polymers (polyamides) due to the relatively high levels of volumetric shrinkage encountered during crystallization of such polymers that lead to significant issues related to warpage and interlayer adhesion. The focus of this review is to evaluate the latest state-of-the-art for processing polyolefins by powder bed fusion (PBF) and material extrusion (MatEx) AM modalities. Recent progress in processing neat, filled, and blends of polyolefins using PBF and MatEx are discussed to highlight the importance of the rheological and morphological characteristics of the polymer melt on the printed parts performance. The existing challenges to AM of polyolefins are emphasized and strategies to address the limitations are recommended through a better understanding of the associated process-structure-property relationships. A holistic approach spanning synthetic modifications for feedstock development, improved system design, and physics-guided process parameter selection is required to broadly adopt melt-based AM of polyolefins.
Bank performance during the COVID-19 pandemic: does income diversification help?

ABSTRACT The Covid-19 pandemic’s economic effect led to tighter credit standards and a decline in the market for many types of loans. With a rich database of 1,231 banks in 90 countries from 2018Q1 to 2021Q4, we conducted a timely, broad-based international study to investigate whether non-interest activities, serving as a shock absorber, can promote bank performance before and during the Covid−19 pandemic. When using a dynamic panel data model with a system GMM estimator, our findings indicate that banks should be encouraged to diversify their income sources to reduce the adverse effects of the shock. With comparative analysis, we also found heterogeneous effects of income diversification on bank performance by its components, in pre-Covid−19 and during-Covid−19 periods, in both developed and developing countries. This study implies that bank managers should diversify income sources, especially fee-based services, trading activities, and foreign currency, to foster financial performance and stability during exogenous shocks.
Higher-order weak radial epiderivatives and non-convex set-valued optimization problems

In the paper, we propose the notion of the higher-order weak radial epiderivative of a set-valued map, and discuss some of its properties. Then, by virtue of the higher-order weak radial epiderivative, we establish the optimality necessary conditions and sufficient ones of weak efficient solutions (Pareto efficient solutions) for non-convex set-valued optimization problems. Some of the obtained results improve and extend the recent existing results. Several examples are provided to show the main results obtained.
Board Diversity and Dividend Policy of Listed Health Care Companies in Nigeria: The Moderating Effect of Financial Performance

This paper examines the moderating effect of financial performance on the relationship between board dynamism and dividend payout of listed healthcare companies in Nigeria. Data were collected from the annual reports and accounts of 10 healthcare companies listed on the Nigerian Exchange Group over a period of 2011 to 2021. Ex post facto research design was employed and secondary data was sourced through annual reports of listed health care companies. Descriptive statistics and inferential statistics were employed to analyse the data using panel regression technique. The results show that board gender has a significant negative effect on dividend payout prior to moderation. Results however, changed to a significant positive effect when moderated with financial performance. Specifically, gender diversity, board qualification and board nationality have significant positive effects on dividend payout. In addition, financial performance significantly moderates the relationship between gender diversity and dividend payout. Impliedly, health care companies with more female directors perform better and tend to pay more dividends, Based on the findings of the study, there should be a policy decision of Nigerian healthcare firms that will give female directors a quota on the board of directors to be composed of women directors who have more corporate experience. The regulators should also encourage boards of Nigerian healthcare firms to consist of a more diverse board to positively foster performance, thus improving dividend payout. Managers of the Nigerian healthcare firms should ensure that more foreign directors are appointed to serve on their board to achieve a more favorable dividend policy. This can be achieved through direct foreign investment in the Nigerian healthcare companies.
Maximal Cohen-Macaulay Modules over a Non-Isolated Hypersurface Singularity

We compute the matrix factorizations of all graded Maximal CohenMacaulay modules over the non-isolated hypersurface singularity R = k[y1, y2, y3]/(f), f = y 3 1 − y2 1y3 − y2 2y3, k an algebraically closed field with char k=0. They give an explicit description of the indecomposable coherent sheaves of rank one over the simple node ProjR ⊂ Pk. Using the classification of vector bundles on this node we describe also the rank two graded Maximal Cohen-Macaulay modules on R that have locally free sheafification. ∗Supported by the DFG-Schwerpunkt ”Globale Methoden in der komplexen Geometrie”
Convergence analysis of an MPFA method for flow problems in anisotropic heterogeneous porous media

Our purpose in this paper is to present the theoretical analysis of a Multi-Point Flux Approximation method (MPFA method). We start with the derivation of the discrete problem, and then we give a result of existence and uniqueness of a solution for that problem. As in finite element theory, Lagrange interpolation is used to define three classes of continuous and locally polynomial approximate solutions. For analyzing the convergence of these different classes of solutions, the notions of weak and weak-star MPFA approximate solutions are introduced. Their theoretical properties, namely stability and error estimates (in discrete energy norms, L 2 − norm and L ∞ − norm), are investigated. These properties play a key role in the analysis (in terms of error estimates for diverse norms) of different classes of continuous and locally polynomial approximate solutions mentioned above.
Atmospheric new particle formation and growth: review of field observations

This review focuses on the observed characteristics of atmospheric new particle formation (NPF) in different environments of the global troposphere. After a short introduction, we will present a theoretical background that discusses the methods used to analyze measurement data on atmospheric NPF and the associated terminology. We will update on our current understanding of regional NPF, i.e. NPF taking simultaneously place over large spatial scales, and complement that with a full review on reported NPF and growth rates during regional NPF events. We will shortly review atmospheric NPF taking place at sub-regional scales. Since the growth of newly-formed particles into larger sizes is of great current interest, we will briefly discuss our observation-based understanding on which gaseous compounds contribute to the growth of newly-formed particles, and what implications this will have on atmospheric cloud condensation nuclei formation. We will finish the review with a summary of our main findings and future outlook that outlines the remaining research questions and needs for additional measurements.
Complications and Costs Associated With Ethnicity Following Total Hip Arthroplasty: A Retrospective Matched Cohort Study

Background: Minority patients often have greater numbers of complications, revisions, and costs after total hip arthroplasty (THA). This study investigates how race correlates with specific surgical complications, revisions, and total costs following THA both before and after propensity matching. Methods: Data from 2014-2016 were collected from a large commercial insurance database known as PearlDiver. THA patients were assigned under Current Procedural Terminology (CPT-27130) and International Statistical Classification of Diseases (ICD-9-P-8151) codes and then divided into groups based on racial status in the database. Patients of different ethnicities including White, Black, Asian, and Hispanic patients were compared in regard to age, gender, comorbidities, lengths of stay, and surgical complications and costs at thirty days, ninety days, and one year using unequal variance t-tests. Black, Asian, and Hispanic patients are collectively referred to as minority patients. Patient comparisons were done both before and after matching for age, gender, tobacco use, diabetes, and obesity comorbidities. Results: A total of 73,688 White (93%), 4,822 Black (6%), 268 Asian (0.3%), and 420 Hispanic (0.5%) THA patients were included. Significantly more minority patients underwent THA under the age of 65 and had higher comorbidity indices and lengths of stay. Black patients had significantly higher complication rates, but there was no significant difference in rates of revision in any minority group. Minority patients were charged 9%-83% more. After matching, Black and Hispanic patients maintained higher comorbidity indices and lengths of stay. Black patients had a spectrum of complication rates but significantly decreased revision rates. Furthermore, after matching, minority patients were charged 5%-65% more. Conclusions: Black patients experienced significantly greater rates of complications and higher total costs; whereas, Asian and Hispanic patients did not have significant differences in complications but did have higher costs. Therefore, this study aligns with previous studies and supports our hypothesis that Black ethnicity patients have worse outcomes than White ethnicity patients after THA, advocating for reducing health disparities and establishing more equitable healthcare, but does not support our hypothesis for Asian and Hispanic patients, likely due to a small study population size, warranting further research into the topic.
Solar cell UV‐induced degradation or module discolouration: Between the devil and the deep yellow sea

For decades, photovoltaic (PV) module yellowing caused by UV exposure has been observed on solar arrays in operation. More than an aesthetic inconvenience, this phenomenon can severely impair module performance and promote other degradation mechanisms by undermining the photoprotection provided by encapsulation. To understand how this reaction may affect current encapsulation materials, silicon heterojunction (SHJ) monocell modules with either UV‐cut or UV‐transparent commercial encapsulants were aged under UV irradiation and examined by visual inspection, fluorescence imaging and flash tests. Despite the photoprotection they provide, only the encapsulants that were stabilised by UV absorbers underwent discolouration. On the one hand, UV absorber photodegradation is responsible for the formation of yellow chromophores that affect light transmission to the cell, which could cause net decrease in the photogenerated current high as 4% after 4200 h of accelerated UV ageing. On the other hand, UV‐induced degradation of SHJ solar cells only accounts for a lower photogenerated current loss (3%), in contrast with previous observations in the literature. According to the behaviour of the current encapsulation formulation, the stability of UV absorbing additives has to be improved to ensure the durability of the device over 30 years.
Boiling Heat Transfer Characteristics for Methane, Ethane and Their Binary Mixtures

Abstract Methane (R50) and ethane (R170) are the dominated components of natural gas and the important components in mixture refrigerants for the mixture Joule–Thomson refrigeration cycle. In this article, experimental investigations on nucleate pool boiling and flow boiling heat transfer characteristics of R50, R170, and their binary mixtures are presented. The effects of saturation pressure, heat flux, mass flux, concentration, and vapor quality on heat transfer coefficients are analyzed and discussed. Firstly, the pool boiling heat transfer data were compared with six well-known correlations. Labuntsov correlation shows the best agreement with a mean absolute relative deviation (MARD) of 11.3%. Secondly, a new flow boiling heat transfer correlation for pure fluids was proposed based on the asymptotic addition of forced convection and pool boiling. The modified enhancement factor and suppression factor were developed to account for their relative contribution. In addition, in order to consider the mass transfer resistance of mixtures, a new mixture factor was deduced. The new flow boiling heat transfer correlations can well predict the experimental data with the MARD of 9.5% for pure fluids and 8.3% for mixtures.
Multiplicity of Solutions For a Convex-concave Problem With a Nonlinear Boundary Condition

Abstract We study the existence of multiple positive solutions for a convex-concave problem, denoted by (Pλμ), with a nonlinear boundary condition involving two critical exponents and two positive parameters λ and μ. We obtain a continuous strictly decreasing function f such that K1 ≡ {(f(μ), μ) : μ ∈ [0, ∞)} divides [0, ∞) × [0, ∞) \ {(0, 0)} in two connected sets K0 and K2 such that problem (Pλμ) has at least two solutions for (λ, μ) ∈ K2, at least one solution for (λ, μ) ∈ K1 and no solution for (λ, μ) ∈ K0.