bluuebunny/crossref_metadata_2025 huggingface dataset:
Oral-Health-Related Quality of Life and Cosleeping: The Role of Nocturnal Breastfeeding
Authors: Carrillo-Díaz María , Lacomba-Trejo Laura , Pérez-Chicharro María , Romero-Maroto Martín , González Olmo María José
Published: October 2021

The purpose of this paper is to analyse the association between cosleeping and the number of breastfeeding sessions in infants, OHRQoL of the child and the family, and the DMFT Child’s index. The sample comprised 273 children (2–4 years old). In addition to the clinical examination of the child to assess the DMFT Index, the mother was requested to complete a questionnaire to collect data about the breastfeeding practice, diet, dental hygiene, dental check-ups, quality of the child’s oral life, and family impact (ECOHIS Scale). The children’s OHRQoL is positively correlated with number of night-time breastfeeding sessions at 12 months (r2 = 0.40 **), DMFT index (r2 = 0.60 **), impact family (r2 = 0.65 **), and duration of cosleeping (r2 = 0.36 **). The moderating effect explained 41% of OHRQoL; the interaction between the number of breastfeeding sessions at 18 months and the DMFT index significantly increased the coefficient of determination. A longer practice time for cosleeping was associated with an increase in breastfeeding sessions, a higher impact on OHRQoL, a higher family impact, and a higher DMFT index. More than three night-time breastfeeding sessions moderate the relationship between the DMFT index and the child’s OHRQoL.
Numerical Simulation of a Periodic Quasi-Switching Mode of Flow around a Conical Dimple with a Slope Angle of 10 Degrees on the Wall of a Narrow Channel Using URANS
Authors: Isaev Sergey , Nikushchenko Dmitry , Sudakov Alexandr , Tryaskin Nikita , Egorova Ann , Iunakov Leonid , Usachov Alexandr , Kharchenko Valery
Published: October 2021

The applicability of the solution of the unsteady Reynolds-averaged Navier–Stokes equations (URANS) for the numerical simulation of the periodic quasi-switching regime of vortex generation and heat transfer in a deep conical dimple with a slope angle of 10∘ on the wall of a narrow channel is substantiated. To calculate the turbulent regime, the model of shear stress transfer by Menter 2003, modified taking into account the influence of the curvature of streamlines within the framework of the Rodi-Leshziner-Isaev approach, is used. At Reynolds number Re=104, the oscillation period of the transverse Rz and longitudinal forces Rx, as well as the total heat transfer Numm to the control section of the heated channel wall with a dimple, is set equal to 60, which corresponds to the Strouhal number St=0.0167. Computer visualization of swirling jet-vortex flows demonstrates focus-type sources on the side faces of the dimple. In the self-oscillating mode, a two-cell vortex system is formed with different intensities at the oscillation period Rz. Periodic changes in friction, Nusselt numbers and temperature are recorded in the longitudinal and transverse median sections of the dimple and reflect the oscillations of the vortex structure from left to right and from right to left. The formation of a fan jet is shown, which oscillates relative to the plane of longitudinal symmetry, causing a redistribution of power and thermal loads.
Enzyme Production Potential of Penicillium oxalicum M1816 and Its Application in Ferulic Acid Production
Authors: Zhang Jing , Liu Shuangping , Sun Hailong , Jiang Zhengfei , Zhou Zhilei , Han Xiao , Zhou Yongxiang , Sun Honggen , Zhou Weibiao , Mao Jian
Published: October 2021

The present study focused on isolating an efficient enzyme production microorganism for ferulic acid (FA) production from wheat bran. A wild-type cellulase-, xylanase-, and feruloyl esterase-producing strain was isolated and identified as Penicillium oxalicum M1816. The genome was sequenced and assembled into 30.5 Mb containing 8301 predicted protein-coding genes. In total, 553 genes were associated with carbohydrate metabolism. Genomic CAZymes analysis indicated that P. oxalicum M1816, comprising 39 cellulolytic enzymes and 111 hemicellulases (including 5 feruloyl esterase genes), may play a vital role in wheat bran degradation and FA production. The crude enzyme of strain M1816 could release 1.85 ± 0.08 mg·g−1 FA from de-starched wheat bran (DSWB) at 12 h, which was significantly higher than other commercial enzymes. Meanwhile, when the strain M1816 was cultured in medium supplemented with DSWB, up to 92.89% of the total alkali-extractable FA was released. The process parameters of solid-state fermentation were optimized to enhance enzyme production. The optimized wheat bran Qu of P. oxalicum M1816 was applied to huangjiu fermentation, and the FA content was increased 12.4-fold compared to the control group. These results suggest that P. oxalicum M1816 is a good candidate for the development of fermented foods bio-fortified with FA.
Nutritional and Chemical-Physical Characterization of Fresh Pasta Gnocchi Prepared with Sea Water as New Active Ingredient
Authors: Santagata Gabriella , Zannini Domenico , Mallardo Salvatore , Boscaino Floriana , Volpe Maria Grazia
Published: October 2021

This study shows the chemical–physical and nutritional results obtained using food-grade sea water for the preparation of fresh pasta Gnocchi with respect to those prepared with tap water. Gnocchi obtained by mixing the flour with seawater (GSW) were compared with traditional Gnocchi made with tap water (GTW). The contents of sodium chloride, macro and micro elements, volatile molecules profile, thermal properties, and morphological analysis were investigated in both Gnocchi types. The analysis of chlorides showed that the samples prepared with sea water had a significantly lower NaCl content after cooking in comparison with those prepared with tap water. These results were also confirmed by the inductively coupled plasma (ICP) analysis for sodium content. The profiles of the volatile molecules acquired by gas chromatography-mass spectrometry (GC-MS) evidenced significant differences between the groups of aromatic molecules of the two typologies of samples. Morphological analysis evidenced that both raw and cooked GSW Gnocchi were structurally tightened whereas GTW Gnocchi showed a labile and weak macromolecular network. In addition, GSW Gnocchi was more thermally stable than GTW Gnocchi, as evidenced by thermogravimetric analysis (TGA).
Mekeres’ Psychosocial Internalization Scale: A Scale for the Evaluation of Aesthetic Prejudice in Victims of Accidents and Violence
Authors: Voiță-Mekeres Florica , Buhaș Camelia Liana , Mekeres Gabriel Mihai , Tudoran Cristina , Racovita Mariana , Faur Cosmin Ioan , Tudoran Mariana , Abu-Awwad Ahmed , Voiță Nuțu Cristian , Maghiar Teodor Andrei
Published: October 2021

Background and objectives: One important forensic activity is the assessment of aesthetic injuries where expert criteria and analysis are insufficiently outlined due to the subjective elements related to the traumatized victim. Unaesthetic morphological changes may occur due to various circumstances committed under the Penal Code, resulting in permanent unaesthetic morphological scarring. Considering that most of the existing scales for the assessment of aesthetic prejudices refer only to morphometric changes, our aim was to create a modern method for the evaluation of aesthetic damage that also considers its social and psychological consequences. Materials and Methods: In this study, we developed the Mekereș Psychosocial Internalization Scale (MPIS), which proposes a clear boundary between the presence or absence of aesthetic damage. The traumatized person is evaluated after a minimum of six months (in the case of an average scar, necessary for defining the character of the scar) to assess changes in the physiognomy or even alterations in the victim’s aesthetic perception of their own body. Our study was conducted on 103 patients with scars, and the results were compared to 101 controls (subjects without scars). Results: Individuals with scars have a distorted perception (compared to controls) of the support provided by significant people [t (202) = 2.473; p = 0.01]. Hypothetically, they will most likely exhibit a nuanced socio-cognitive and psycho-emotional vulnerability that may be the source of future dysfunctions. The fidelity of the MPIS scale was estimated by employing Cronbach’s alpha coefficient, resulting in a value of 0.934 (15 items). The exploratory factorial analysis with Varimax rotation mode sustains a single dominant factor, indicating a good internal consistency. The results of this study provide evidence regarding the psychosocial or psychometric worthiness of MPIS. Conclusions: MPIS can be used for research and as an instrument to assess aesthetic damage or disfigurement by forensic physicians and lawyers.
How Income Inequality and Race/Ethnicity Drive Obesity in U.S. Adults: 1999–2016
Authors: Zare Hossein , Gilmore Danielle R. , Creighton Ciana , Azadi Mojgan , Gaskin Darrell J. , Thorpe Roland J.
Published: October 2021

Obesity is a major public health problem both globally and within the U.S. It varies by multiple factors, including but not limited to income and sex. After controlling for potential covariates, there is little evidence to determine the association between income and obesity and how obesity may be moderated by sex and family income. We examined the association between income and obesity in U.S. adults aged 20 years and older, and tested whether this relationship differs by race or ethnicity groups. For this analysis, we used data from the 1999–2016 National Health and Nutrition Examination Surveys (NHANES). Obesity was determined using Body Mass Index ≥ 30 kg/m2; the Gini coefficient (GC) was calculated to measure income inequality using the Poverty Income Ratio (PIR). We categorized the PIR into five quintiles to examine the relationship between income inequality and obesity. For the first set of analyses, we used a modified Poisson regression in a sample of 36,665 adults, with an almost equal number of men and women (women’s ratio was 50.6%), including 17,303 white non-Hispanics (WNH), 7475 black non-Hispanics (BNHs), and 6281 Mexican Americans. The models included age, racial/ethnic groups, marital status, education, health behaviors (smoking and drinking status and physical activities), health insurance coverage, self-reported health, and household structure (live alone and size of household). Adjusting for potential confounders, our findings showed that the association between PIR and obesity was positive and significant more frequently among WNH and BNH in middle and top PIR quintiles than among lower-PIR quintiles; this association was not significant in Mexican Americans (MAs). Results of GC in obese women showed that in comparison with WNHs (GC: 0.34, S.E.: 0.002), BNHs (GC: 0.38, S.E.: 0.004) and MAs (GC: 0.41, S.E.: 0.006) experienced higher income inequality, and that BNH obese men experienced the highest income inequality (GC: 0.45, S.E.: 0.011). The association between PIR and obesity was significant among WNHs and BNHs men in the 3rd, 4th and 5th PIR quintiles. The same association was not found for women. In treating obesity, policymakers should consider not only race/ethnicity and sex, but also strategies to reduce inequality in income.
The Role of a Physician-Staffed Helicopter in Emergency Care of Patients on Isolated Danish Islands
Authors: Herrlin Jensen Alice , Sonne Asger , Rasmussen Lars S.
Published: October 2021

Emergency calls may lead to the dispatch of either ground ambulances or helicopter emergency medical services (HEMS). For residents on isolated islands, the HEMS can reduce the time to hospital admission and lead to improved outcomes. This study investigated the emergency care for residents on isolated islands with a focus on the role of a physician-staffed helicopter. The data were obtained from Danish national registries and databases. We included data on emergency calls from isolated islands from the time of emergency call to discharge. We identified 1130 emergency calls from which 775 patients were registered with a hospital admission. Of these, 41% were transported by the HEMS and 36% by a ground ambulance. The median time to admission was 83 min (IQR 66–104) and 90 min (IQR 45–144) for the HEMS and ground ambulance, respectively (p = 0.26). The overall 30-day mortality was 6.2% (95% CI: 4.6–8.1%), and 37% of all the patients were admitted to the hospital with an unspecified diagnosis. The emergency calls from isolated islands led to the dispatch of the HEMS in 41% of the cases. The use of the HEMS did not significantly reduce the time to admission but was used in a greater proportion of patients with an acute cardiac disease (66%) or stroke (67%).
Association between Educational Level and Physical Activity in Chronic Disease Patients of Eastern Slovakia
Authors: Buková Alena , Chovanová Erika , Küchelová Zuzana , Junger Jan , Horbacz Agata , Majherová Mária , Duranková Silvia
Published: October 2021

Aims: This study aimed to investigate selected chronic diseases patients with different educational attainment regarding their awareness of and compliance with recommended physical activity. Method: This cross-sectional study was conducted from October 2018 to February 2019 in cooperation with chronic diseases clinics in eastern Slovakia. The study involved 893 patients. Results: People with higher education apparently recognise to a greater extent the importance of nutrition, diet, and the role of physical activity in treating their disease. Moreover, they have knowledge of physical exercises appropriate for their disease. Conversely, a noticeably higher number of less educated patients reported receiving general, respectively detailed information about the importance of physical activity in treating their disease. Differences in awareness of appropriate exercises and their implementation were not statistically significant. Conclusions: The results fail to prove educational attainment being a key determinant of chronic diseases. However, it can be reasonably argued that lower educational attainment may be a reliable risk signal of chronic diseases in later life.
Numerical and Experimental Approaches to Estimate Discharge Coefficients and Energy Loss Coefficients in Pressurized Grated Inlets
Authors: Tellez-Alvarez Jackson , Gómez Manuel , Russo Beniamino , Amezaga-Kutija Marko
Published: October 2021

Numerical models concerning inlet systems are run to assess the hydraulic performance of existing or new systems and estimate the flow interchanges between the surface overland and sewer flows. In most programs, these interactions are modelled using the orifice equation, with estimated discharge coefficients around 0.6. In this paper, discharge values and energy loss coefficients for several pressurized grated inlets were obtained by experimental and numerical approaches and compared. To achieve these goals, a numerical model replicating several experimental tests carried out at the hydraulic laboratory of Universitat Politècnica de Catalunya (UPC) was produced using a CFD model (Flow 3D). This numerical model was found to be highly sensitive to the mesh size used; however, it was able to accurately simulate the experimental processes. The comparison considered different combinations of pressurized flow though the grate, between 10 to 50 l/s, and different longitudinal gradients. The experimental discharge coefficient was found to increase with surcharging flowrate (ranging from 0.14 and 0.41), whereas the longitudinal gradient was found to have no effect. The discharge coefficients obtained in this study show that the standard 0.6 value commonly used by practitioners should be revised to a range between 0.14 to 0.41, depending on circulating flow and inlet type. In addition, the loss coefficient values range from 0.25 to 3.41.
Feature Selection Using Correlation Analysis and Principal Component Analysis for Accurate Breast Cancer Diagnosis
Authors: Ibrahim Sara , Nazir Saima , Velastin Sergio A.
Published: October 2021

Breast cancer is one of the leading causes of death among women, more so than all other cancers. The accurate diagnosis of breast cancer is very difficult due to the complexity of the disease, changing treatment procedures and different patient population samples. Diagnostic techniques with better performance are very important for personalized care and treatment and to reduce and control the recurrence of cancer. The main objective of this research was to select feature selection techniques using correlation analysis and variance of input features before passing these significant features to a classification method. We used an ensemble method to improve the classification of breast cancer. The proposed approach was evaluated using the public WBCD dataset (Wisconsin Breast Cancer Dataset). Correlation analysis and principal component analysis were used for dimensionality reduction. Performance was evaluated for well-known machine learning classifiers, and the best seven classifiers were chosen for the next step. Hyper-parameter tuning was performed to improve the performances of the classifiers. The best performing classification algorithms were combined with two different voting techniques. Hard voting predicts the class that gets the majority vote, whereas soft voting predicts the class based on highest probability. The proposed approach performed better than state-of-the-art work, achieving an accuracy of 98.24%, high precision (99.29%) and a recall value of 95.89%.
Game Theory for Unmanned Vehicle Path Planning in the Marine Domain: State of the Art and New Possibilities
Authors: Cococcioni Marco , Fiaschi Lorenzo , Lermusiaux Pierre F. J.
Published: October 2021

Thanks to the advent of new technologies and higher real-time computational capabilities, the use of unmanned vehicles in the marine domain has received a significant boost in the last decade. Ocean and seabed sampling, missions in dangerous areas, and civilian security are only a few of the large number of applications which currently benefit from unmanned vehicles. One of the most actively studied topic is their full autonomy; i.e., the design of marine vehicles capable of pursuing a task while reacting to the changes of the environment without the intervention of humans, not even remotely. Environmental dynamicity may consist of variations of currents, the presence of unknown obstacles, and attacks from adversaries (e.g., pirates). To achieve autonomy in such highly dynamic uncertain conditions, many types of autonomous path planning problems need to be solved. There has thus been a commensurate number of approaches and methods to optimize this kind of path planning. This work focuses on game-theoretic approaches and provides a wide overview of the current state of the art, along with future directions.
Closed-Loop Nash Equilibrium in the Class of Piecewise Constant Strategies in a Linear State Feedback Form for Stochastic LQ Games
Authors: Drăgan Vasile , Ivanov Ivan Ganchev , Popa Ioan-Lucian , Bagdasar Ovidiu
Published: October 2021

In this paper, we examine a sampled-data Nash equilibrium strategy for a stochastic linear quadratic (LQ) differential game, in which admissible strategies are assumed to be constant on the interval between consecutive measurements. Our solution first involves transforming the problem into a linear stochastic system with finite jumps. This allows us to obtain necessary and sufficient conditions assuring the existence of a sampled-data Nash equilibrium strategy, extending earlier results to a general context with more than two players. Furthermore, we provide a numerical algorithm for calculating the feedback matrices of the Nash equilibrium strategies. Finally, we illustrate the effectiveness of the proposed algorithm by two numerical examples. As both situations highlight a stabilization effect, this confirms the efficiency of our approach.
Three-Dimensional Numerical Modeling of Internal Ballistics for Solid Propellant Combinations
Authors: Otón-Martínez Ramón A. , Velasco Francisco Javier S. , Nicolás-Pérez Francisco , García-Cascales José R. , Mur-Sanz de Galdeano Ramón
Published: October 2021

The processes that take place within the Internal Ballistics cycle of an artillery round are highly influenced by geometric effects. They are also highly affected by the presence of a combination of energetic materials, such as the propellant, igniter, primer, and the combustible cartridge cases. For a more realistic simulation of these phenomena, a multidimensional and multicomponent numerical model is presented, based on adaptations and improvements of previous models of conservation equations, maintaining a two-phase, Eulerian–Eulerian approximation. A numerical method based on Finite Volumes and conservative flux schemes (Rusanov and AUSM+), with the ability to predict detonation effects, is proposed. As a result, a versatile 3D numerical code was obtained that was tested in the simulation of artillery firing with conventional and modular charges (MACS). Results show the code is able to characterize the heat and mass transfer of the different energetic materials during the combustion of the propellant and the cartridge cases, the gas expansion, and the projectile acceleration.
Conservative Finite-Difference Schemes for Two Nonlinear Schrödinger Equations Describing Frequency Tripling in a Medium with Cubic Nonlinearity: Competition of Invariants
Authors: Trofimov Vyacheslav , Loginova Maria
Published: October 2021

Two 1D nonlinear coupled Schrödinger equations are often used for describing optical frequency conversion possessing a few conservation laws (invariants), for example, the energy’s invariant and the Hamiltonian. Their influence on the properties of the finite-difference schemes (FDSs) may be different. The influence of each of both invariants on the computer simulation result accuracy is analyzed while solving the problem describing the third optical harmonic generation process. Two implicit conservative FDSs are developed for a numerical solution of this problem. One of them preserves a difference analog of the energy invariant (or the Hamiltonian) accurately, while the Hamiltonian (or the energy’s invariant) is preserved with the second order of accuracy. Both FDSs possess the second order of approximation at a smooth enough solution of the differential problem. Computer simulations demonstrate advantages of the implicit FDS preserving the Hamiltonian. To illustrate the advantages of the developed FDSs, a comparison of the computer simulation results with those obtained applying the Strang method, based on either an implicit scheme or the Runge–Kutta method, is made. The corresponding theorems, which claim the second order of approximation for preserving invariants for the FDSs under consideration, are stated.
On the Initial Value Problems for Caputo-Type Generalized Proportional Vector-Order Fractional Differential Equations
Authors: Abbas Mohamed I. , Hristova Snezhana
Published: October 2021

A generalized proportional vector-order fractional derivative in the Caputo sense is defined and studied. Two types of existence results for the mild solutions of the initial value problem for nonlinear Caputo-type generalized proportional vector-order fractional differential equations are obtained. With the aid of the Leray–Schauder nonlinear alternative and the Banach contraction principle, the main results are established. In the case of a local Lipschitz right hand side part function, the existence of a bounded mild solution is proved. Some examples illustrating the main results are provided.
Biosynthesis of 2-Heptanone, a Volatile Organic Compound with a Protective Role against Honey Bee Pathogens, by Hive Associated Bacteria
Authors: Saccà Maria Ludovica , Bianchi Giulia , Lo Scalzo Roberto
Published: October 2021

Beehives are populated by bacterial species with a protective role against honey bee pathogens thanks to the production of bioactive metabolites. These compounds are largely unexploited despite their high potential interest for pest management. This study evaluated the capability of bacterial species associated with honey bees to produce 2-heptanone, a volatile organic compound with anesthetic properties of the parasitic mite Varroa destructor. The production of this compound was quantified by SPME-GC-MS in a culture filtrate of nine bacterial strains isolated from the surface of honey bees, and the biosynthetic potential was evaluated in bacterial species associated with apiaries by searching for protein homologs putatively involved in its biosynthesis by using biocomputational tools. The findings pointed out that 2-heptanone was produced by Acetobacteraceae bacterium, Bacillus thuringiensis and Apilactobacillus kunkeei isolates in concentrations between 1.5 and 2.6 ng/mL and that its production was strain-specific. Putative methylketone synthase homologs were found in Bacillus, Gilliamella, Acetobacteraceae, Bartonella and Lactobacillaceae, and the protein sequence results were distributed in nine Sequence Similarity Network (SSN) clusters. These preliminary results support the hypothesis that 2-heptanone may act as a mediator of microbial relationships in hives and provide contributions to assess the role and biosynthetic potential of 2-heptanone in apiaries.
Seasonal Changes in Soil Microbial Community and Co-Occurrence Network of Species of the Genus Corylus
Authors: Ma Wenxu , Yang Zhen , Liang Lisong , Ma Qinghua , Wang Guixi , Zhao Tiantian
Published: October 2021

Hazelnut is one of the four major nuts in the world and has high nutritional and economic value. This study employed Illumina sequencing of ITS rDNA and 16S rRNA genes to identify the seasonal changes in soil microbial community, the predominant environmental factors driving microbial community composition, and the differences in soil microbial composition among different species of the genus Corylus. We found that the soil microbial community composition of species of Corylus changed significantly with the change in seasons. Corylus heterophylla and Corylus kweichowensis had more ectomycorrhiza in their soil compared to Corylus avellane. The main factor influencing fungal community composition in soil was the available potassium, while that of bacteria was the total phosphorus content. Co-occurrence network analysis revealed that the ratio of positive interaction to negative interaction in soil of C. heterophylla and Ping’ou (C. heterophylla × C. avellane) was higher, while the negative interaction of soil community structure in C. avellane was greater. The bacterial community was more stable than the fungal community according to microbial diversity and co-occurrence network analyses. The findings of this research may facilitate improvements to the production and soil system management in hazel planting processes.
Linking Automated Scanning Electron Microscope Based Investigations to Chemical Analysis for an Improved Understanding of Ash Characteristics
Authors: Guhl Andrea C. , Pavón Sandra , Schulz Bernhard , Bertau Martin
Published: October 2021

The movements and efforts of a circular economy, aiming to tap into the resource potential of ash, require an intimate knowledge of the material; often, target elements within this material are part of complex ash phases. This work shows how automated SEM investigations measure up to other laboratory techniques for the analysis of elemental composition and particle size. Three sewage sludge ash (SSA) samples have been studied in this comparison, showing material variation for SSA and highlighting the strengths and shortcomings of the methods chosen. Inductively coupled plasma optical emission spectroscopy (ICP-OES), X-ray fluorescence (XRF) and scanning electron microscopy with energy dispersive X-ray analysis (SEM-EDX) show relevant phosphate phases, but also a number of other elements. The extent of the accompanying elements, most likely hindering efficient phosphorus (P) recovery, varies. Propensities for detection in fine-grained and largely amorphous material such as ash vary, as is explored in this thorough comparison. ICP-OES data suffers from incomplete sample mobilization, and XRF-derived values suffer from matrix effects. Both are the only techniques studied which show trace elements, such as potentially toxic elements. SEM-EDX automated mineralogy delivers more reliable data for main elements while not reporting traces. By showing SEM-EDX automated mineralogy particle size distributions, alongside laser diffraction derived particle size distributions, the extent of the strain ash puts on traditional techniques is visible. Ashes tend to agglomerate, and the porous nature of particles hinders accurate detection. This work highlights where SSA recycling needs to be careful and hints at the extent of discrepancies between different methods. When understanding ash as a potential resource and designing efficient extraction strategies, this knowledge is crucial.
Self-Limitations of Heat Release in Coupled Core-Shell Spinel Ferrite Nanoparticles: Frequency, Time, and Temperature Dependencies
Authors: Khanal Shankar , Sanna Angotzi Marco , Mameli Valentina , Veverka Miroslav , Xin Huolin L. , Cannas Carla , Vejpravová Jana
Published: October 2021

We explored a series of highly uniform magnetic nanoparticles (MNPs) with a core-shell nanoarchitecture prepared by an efficient solvothermal approach. In our study, we focused on the water dispersion of MNPs based on two different CoFe2O4 core sizes and the chemical nature of the shell (MnFe2O4 and spinel iron oxide). We performed an uncommon systematic investigation of the time and temperature evolution of the adiabatic heat release at different frequencies of the alternating magnetic field (AMF). Our systematic study elucidates the nontrivial variations in the heating efficiency of core-shell MNPs concerning their structural, magnetic, and morphological properties. In addition, we identified anomalies in the temperature and frequency dependencies of the specific power absorption (SPA). We conclude that after the initial heating phase, the heat release is governed by the competition of the Brown and Néel mechanism. In addition, we demonstrated that a rational parameter sufficiently mirroring the heating ability is the mean magnetic moment per MNP. Our study, thus, paves the road to fine control of the AMF-induced heating by MNPs with fine-tuned structural, chemical, and magnetic parameters. Importantly, we claim that the nontrivial variations of the SPA with the temperature must be considered, e.g., in the emerging concept of MF-assisted catalysis, where the temperature profile influences the undergoing chemical reactions.
A Water-Soluble Polyacid Polymer Based on Hydrophilic Metal–Organic Frameworks Using Amphoteric Carboxylic Acid Ligands as Linkers for Hydroxycamptothecin Loading and Release In Vitro
Authors: Shi Yuqiong , Liu Wei , Wu Xiangrong , Zhu Jinhua , Zhou Danyang , Liu Xiuhua
Published: October 2021

The poor water solubility and severe side effects of hydroxycamptothecin (HCPT) limit its clinical application; therefore, it is necessary to synthesize applicable nanodrug carriers with good solubility to expand the applications of HCPT. In this study, a hydrophilic metal–organic framework (MOF) with amphoteric carboxylic acid ligands as linkers was first synthesized and characterized. Then, water-soluble acrylamide and methacrylic acid were applied as monomers to prepare a water-soluble polyacid polymer MOF@P, which had a solubility of 370 μg/mL. The effects of the MOF@P material on the HCPT loading and solubility were investigated. The results showed that the polymer material could improve the HCPT solubility in water. Moreover, the in vitro release study indicated that the MOF@P polymeric composite exhibited a sustained-release effect on HCPT, with a cumulative release rate of 30.18% in 72 h at pH 7.4. Furthermore, the cytotoxicity test demonstrated that the hydrophilic MOF and the MOF@P had low cell toxicities. The results indicate that the prepared MOF@P polymeric complex can be applied for the sustained release of HCPT in clinics.
A Review on Biphasic Calcium Phosphate Materials Derived from Fish Discards
Authors: Duta Liviu , Dorcioman Gabriela , Grumezescu Valentina
Published: October 2021

This review summarizes the results reported on the production of biphasic calcium phosphate (BCP) materials derived from fish wastes (i.e., heads, bones, skins, and viscera), known as fish discards, and offers an in-depth discussion on their promising potential for various applications in many fields, especially the biomedical one. Thus, considerable scientific and technological efforts were recently focused on the capability of these sustainable materials to be transformed into economically attractive and highly valuable by-products. As a consequence of using these wastes, plenty of beneficial social effects, with both economic and environmental impact, will arise. In the biomedical field, there is a strong and continuous interest for the development of innovative solutions for healthcare improvement using alternative materials of biogenic origin. Thus, the orthopedic field has witnessed a significant development due to an increased demand for a large variety of implants, grafts, and/or scaffolds. This is mainly due to the increase of life expectancy and higher frequency of bone-associated injuries and diseases. As a consequence, the domain of bone-tissue engineering has expanded to be able to address a plethora of bone-related traumas and to deliver a viable and efficient substitute to allografts or autografts by combining bioactive materials and cells for bone-tissue ingrowth. Among biomaterials, calcium phosphate (CaP)-based bio-ceramics are widely used in medicine, in particular in orthopedics and dentistry, due to their excellent bioactive, osteoconductive, and osteointegrative characteristics. Recently, BCP materials (synthetic or natural), a class of CaP, which consist of a mixture of two phases, hydroxyapatite (HA) and beta tricalcium phosphate (β-TCP), in different concentrations, gained increased attention due to their superior overall performances as compared to single-phase formulations. Moreover, the exploitation of BCP materials from by-products of fish industry was reported to be a safe, cheap, and simple procedure. In the dedicated literature, there are many reviews on synthetic HA, β-TCP, or BCP materials, but to the best of our knowledge, this is the first collection of results on the effects of processing conditions on the morphological, compositional, structural, mechanical, and biological properties of the fish discard-derived BCPs along with the tailoring of their features for various applications.
Public Pensions and Implicit Debt: An Investigation for EU Member States Using Ageing Working Group 2021 Projections
Authors: Symeonidis Georgios , Tinios Platon , Chouzouris Michail
Published: October 2021

Ιmplicit pension debt is attracting increasing attention worldwide as a driver of fiscal dynamics, operating in parallel to the (explicit) National Debt. A prudent examination of a state’s fiscal prospects should ideally encompass both, with due attention paid to the special features of each kind of debt. The explosion of government deficits as a result of the COVID-19 pandemic only adds to the urgency of understanding the scale and nature of issues around accounting for contingent liabilities. The reports of the EU Ageing working group, produced and published every three years are used to derive estimates of the stock of outstanding implicit pension debt from flows of projected deficits. This can be performed for all European member states. This paper uses the last two rounds of the Ageing Report (2021, 2018) and derives conclusions on the evolution of pension debt and its correlation to the external debt. The paper concludes that producing comparable estimates of IPD should become an important input in EU policy discussion.
Análisis de un plan de importación sobre equipos de detección y diagnóstico en pérdida auditiva.
Authors: Muñoz Carine Lázaro Ulises , Barzola  Salguero Yoseph Manolo , Cabrera Cuello Yustin Alberto
Published: October 2021

Un plan de importación es una guía diseñada para mejorar una propuesta de venta internacional y mostrar los beneficios que se obtendrían con su aplicación en ámbitos indispensables como la logística interna, el transporte internacional, la cadena de suministros e inclusive, en el mismo precio de venta del bien. Así mismo, es una fuente de información de manera estructurada para quien busque involucrarse en el área y sobretodo, una nueva perspectiva acerca de los equipos de detección y diagnóstico.

El presente artículo tuvo como fin demostrar estas ventajas en la compra de equipos de detección y diagnóstico en pérdida auditiva. Detallar las entidades que intervienen en el proceso de importación, y su función en pro de beneficiar a las personas con discapacidad auditiva; y a su vez, permitirá conocer, dentro de sus conclusiones, la diferencia que existe entre la compra de estos equipos en territorio nacional y dentro del contenido, los valores incurridos en la importación de estos bienes.
Analisis Laporan Keuangan Pada PT. Bank BNI (Persero) Tbk
Authors: Setiawan Andi
Published: October 2021

A bank is a business entity or financial institution that greatly influences the economy of a country. The purpose of this research is to analyze the financial performance of PT. Bank BNI (Persero) Tbk in 2017-2019 using the CAMEL method. Financial health assessment of PT. Bank BNI (Persero) Tbk is carried out by assessing the aspects of Capital (Capital), Asset Quality, Management (Management), Earning (Rentability), Liquidity (liquidity) which is referred to as CAMEL. The results of the assessment show that the level of financial health of PT. Bank BNI (Persero) Tbk for 3 years for the period 2017-2019 was included in the healthy category with a CAMEL value of 90.2 in 2017, 90.4 in 2018 and 89.7 in 2019.
ANALISA RASIO PEMBAYARAN DEVIDEN MELALUI FAKTOR-FAKTOR TINGKAT PENGEMBALIAN ATAS EKUITAS DAN RASIO CEPAT
Authors: Bramasto Ari , Utami Indri , Syahnaz Siti Nurhaliza
Published: October 2021

Penelitian ini bertujuan untuk mengetahui adanya pengaruh tingkat pengembalian atas ekuitas dan rasio cepat terhadap rasio pembayaran dividen. Dalam penelitian yang dijadikan populasi adalah perusahaan manufaktur, sektor aneka industri dengan sub sektor otomotif dan komponen yang terdaftar pada Bursa Efek Indonesia. Teknik dalam penelitan ini menggunakan metode Purposive Sampling hanya ada 5 perusahaan otomotif dan komponen yang memenuhi kriteria yang terdapat pada Bursa Efek Indonesia. Hasil penelitian ini menggunakan  metode dokumentasi dan dengan jenis data sekunder. Teknik pengumpulan data menggunakan laporan keuangan perusahaan otomotif dan komponen yang terdaftar di Bursa Efek Indonesia. Uji statistik yang digunakan pada penelitian ini adalah Uji Normalitas, Uji Multikolinearitas, Uji Heteroskedastisitas, Uji Autokorelasi, Uji Regresi Linear Berganda, Koefisien Determinasi dan Uji T diolah secara statistik menggunakan program SPSS versi 22.

     Hasil penelitian ini membuktikan bahwa : 1) Tingkat Pengembalian atas Ekuitas berpengaruh signifikan terhadap Rasio Pembayaran Dividen secara parsial, 2) hipotesis dari variabel Rasio Cepat  terhadap Rasio Pembayaran Dividen secara parsial ditolak. Kata Kunci : Tingkat pengembalian Atas Ekuitas, Rasio Cepat, dan Rasio Pembayaran Dividen.
PENGHINDARAN PAJAK YANG DIPENGARUHI OLEH KOMITE AUDIT DAN UKURAN PERUSAHAAN
Authors: Febriansyah Angky , Oktafiani Fini
Published: October 2021

Penghindaran pajak merupakan salah satu strategi perusahaan untuk mengurangi beban pajak pada hukum dengan memanfaatkan kelemahan peraturan perpajakan yang ada. Beberapa faktor yang mempengaruhi penghindaran pajak adalah audit dan ukuran perusahaan. Merupakan fenomena dimana PT. Adaro Energy Tbk diindikasikan untuk menghindari pajak dengan menjual batubara dengan harga rendah kepada anak perusahaannya di Singapore Coaltrade Service International untuk dijual kembali dengan harga tinggi, sehingga meningkatkan pembayaran pajak yang lebih rendah ke Indonesia. Tujuan dari penelitian ini adalah untuk menganalisis pengaruh pemeriksaan terhadap penghindaran pajak dan pengaruh ukuran perusahaan terhadap penghindaran pajak. Metode penelitian yang digunakan adalah deskriptif verifikatif dengan diskusi kuantitatif. Sumber data yang digunakan adalah data sekunder. Pengambilan sampel dengan metode purposive sampling. Teknik analisis data menggunakan uji asumsi klasik (uji normalitas, uji heteroskedastisitas, uji multikolinearitas, uji autokorelasi) dan regresi linier berganda. Perangkat lunak yang digunakan adalah SPSS versi 20. Berdasarkan hasil penelitian ini menunjukkan adanya audit dan ukuran perusahaan yang positif terhadap penghindaran pajak yang dilakukan pada perusahaan sektor pertambangan yang terdaftar di Bursa Efek Indonesia tahun 2016-2018.

 

Kata kunci: komite audit, ukuran perusahaan, penghindaran pajak.
ANALISIS KINERJA KEUANGAN BANK BADAN USAHA MILIK NEGARA (BUMN) DENGAN METODE RGEC (RISK PROFILE, GOOD CORPORATE GOVERNANCE, EARNING, CAPITAL)
Authors: Wulandari Ayu , Taufiqurahman Endang
Published: October 2021

Perekonomian Global saat ini sedang mengalami penurunan, hal ini juga berimbas pada perekonomian suatu Negara, tidak terkecuali Negara Indonesia. Efek dari penurunan sektor perekonomian Indonesia membuat Bankâ€“Bank di Indonesia berlomba-lomba meningkatkan kinerja keuangan Bank mereka, sebagai upaya dalam meningkatkan Perekonomian Indonesia. Penelitian ini dilakukan dengan tujuan untuk mengetahui bagaimana perhitugan rasio keuangan, perkembangan kinerja keuangan, dan kondisi kinerja keuangan pada Bank Badan Usaha Milik Negara (BUMN). Metode penelitian yang digunakan adalah deskriptif kuantitatif. Sumber data yang digunakan adalah data sekunder. Terdapat 4 populasi perusahaan yang terdaftar sebagai bank BUMN di BEI, keempatnya memenuhi syarat untuk menjadi sampel dari penelitian ini. Penentuan sampel pada penelitian ini menggunakan metode purposive sampling. Metode analisis yang digunakan dalam penelitian ini adalah metode RGEC (Risk Profile, Good Corporate Governance, Earning, Capital) dengan rasio keuangan meliputi rasio NPL (Non Performing Loan), rasio LDR (Loan Deposite Ratio, ROA (Return On Asset), NIM (Net Interest Margin), dan CAR (Capital Adequacy Ratio). Hasil penetilian ini menunjukkan kinerja keuangan bank BUMN yang terdaftar di BEI periode 2014-2018 menggunakan metode RGEC pada periode 2014-2018 memiliki kinerja yang sangat baik.

Kata Kunci: Kinerja Keuangan, Meode RGEC, Risk Profile, Earning, Capital.
Renal salt wasting syndrome in a patient with COVID-19; a case report and review of the literature
Authors: Al-Helal Bassam , Abdallah Emad , Yousef Altayyeb , Asad Reem , Reda Mahmoud
Published: October 2021

Introduction: Cerebral salt wasting or renal salt wasting (RSW) syndrome, may be more common than syndrome of inappropriate antidiuretic hormone secretion (SIADH) and may even occur in the absence of cerebral disease. We report a case of RSW in a Bangladeshi patient positive for COVID-19 without clinical cerebral disease. Case Presentation: A 53 years-old Bangladeshi patient presented with history of chest pain and acute MI. On examination, the patient was conscious, alert, vitally stable, chest with fine bilateral basal crepitation and heart with additional S3 sound and abdomen was lax with no organomegaly. There was no lower limbs oedema. His serum creatinine; 68 umol/L, urea; 3.4 mmol/L, K; 4.7 mmol/L, sodium; 135 mmol/L, uric acid; 141 mmol/L and phosphate was 1.3 mmol./L. Echocardiography (ECG) revealed anterior lateral wall STEMI. PCI was done for LAD. ECG revealed ejection fraction (EF) 10-15 %. Nasopharyngeal swab for COVID-19 was positive. Serum sodium decreased from 135 to 108 with signs of hypovolemia. Work up for hyponatremia revealed serum osmolality of 237 mOsm/kg, urine NA; 109 mmol/L, urine osmolality; 295 mOsm/kg, urine uric acid; 685 umol/L, and urine phosphate; 6.5 mmol/L. Additionally serum T3, T4, TSH and serum basal cortisol were normal. The patient received normal saline infusion and fludrocortisone and serum sodium increased to 134 mmol/L. Our patient had all the important clinical and laboratory characteristics of RSW in the absence of cerebral disease which include hyponatremia associated with hypovolemia, high urinary sodium excretion, increased fraction excretion of phosphate and persistent hypouricemia with increased fractional excretion of urate after correction of hyponatremia and with normal renal, adrenal and thyroid functions. Furthermore, there was a prompt response to saline replacement and fludrocortisone and steady improvement in serum sodium with negativity and improvement of COVID-19. Our diagnosis was RSW in the absence of cerebral disease and to our knowledge; this is the first case of RSW in a patient with COVID-19 in the literature. Conclusion: RSW should be considered in patients with COVID-19 with hyponatremia and absence of cerebral disease. We suggest changing cerebral salt wasting to the more appropriate term RSW.
BILINGUAL EFFECT IN THE DEVELOPMENT OF EXECUTIVE FUNCTION
Authors: Novgorodova Yu.O.
Published: October 2021

The article presents the results of a theoretical review, the purpose of which is to highlight the problem of the influence of bilingualism on the development of executive function change in modern research. The analysis of this problem points to the differentiated contribution of bilingualism to the functioning of such cognitive processes as inhibition, working memory and shifting. The problem is that the established term "bilingual advantage", describing the influence of bilingualism on the development of mental structures, is not correct, since the authors note both positive and negative consequences of bilingualism reflected in child development. As a result, researchers have adopted the concept of "bilingual effect", which allows for various options for the impact of bilingualism on the development of cognitive structures. This article urges to indicate the limitations in modern studies of bilinguals, is aimed at finding prospects for further study of this problem.
EMOTIONAL STATE OF TEACHERS OF PRESCHOOL EDUCATIONAL INSTITUTIONS WITH DIFFERENT PROFESSIONAL EXPERIENCE
Authors: Kuz’mina О.V. , Kornil’tseva E.G. , Vorobyova M.A.
Published: October 2021

In the modern conditions of reforming the domestic education system, higher and higher requirements are being imposed not only on the professional knowledge, skills and abilities of teachers, but also on the level of their psychological well-being and the ability to manage their emotions. The article presents the results of an empirical study of the features of the emotional states of teachers of preschool educational institutions with different work experience. Based on the calculations of statistically significant differences using the Kraskel-Wallis H-test coefficient, it is concluded that the emotional states of teachers with different experience differ in the severity of the degree of fatigue, emotional tone, tension and stress. According to the authors of the article, psycho-pedagogical techniques aimed at optimizing emotional states of teachers should be based on four components: organic, emotional, semantic and behavioral.
direito ao corpo nos romances de Bernardo Kucinski e Julián Fuks
Authors: Cury Maria Zilda Ferreira
Published: October 2021

Este artigo analisa a presença/ausência dos corpos nas narrativas relativas ao período da ditadura militar brasileira, tomando como referência os romances de Bernardo Kucinski e de Julian Fuks. A não visibilidade do corpo, ou a negação ao direito ao corpo, nos textos desses escritores afirmam, ainda, a potência da literatura e da arte, evidenciando, o texto narrativo como um espaço de hospitalidade radical da qual defende Jacques Derrida.
Gatos adoram peixe, mas odeiam molhar as patas
Authors: Moscovich Cíntia
Published: October 2021

Publicado originalmente em: MOSCOVICH, Cíntia. Essa coisa brilhante que é a chuva. Rio de Janeiro: Record, 2012. p. 13-21.
animais domésticos e outras receitas (fragmentos)
Authors: Chnaiderman Luana
Published: October 2021

Publicado originalmente em Os animais domésticos e outras receitas (São Paulo: Perspectiva, 2018. p. 27, 79, 83).
Poemas
Authors: Weintraub Fabio
Published: October 2021

Poemas