bluuebunny/crossref_metadata_2025 huggingface dataset:
Emerging electric or magnetic parts of Weyl tensor
Authors: Sati Monika , Petwal K. C. , Pigazzini Alexander , Ozel Cenap , Bisht Manoj Singh , Linker Patrick , Pincak Richard , Jaluvkova Pavlina
Published: August 2023

In this paper, we study the PNDP-manifold, which has shown to be effective in applications, particularly in the field of general relativity, by introducing a new topological approach to the emergent electric or magnetic parts associated to the Weyl tensor. The working hypothesis in this study is that the electric or magnetic parts of the Weyl tensor are the dimensions of the PNDP-manifold and the interaction that emerges as “virtual” point-like manifolds and as a manifold with positive/ negative dimensions results in the generation of the purely electric or purely magnetic parts of the Weyl tensor. The PNDP metric for the electric or magnetic parts of the Weyl tensor is also derived. The generalized Lorentz transformations on the PNDP manifold are introduced. These can give rise to novel forms of gauge theories if we consider local Lorentz transformations. Also we briefly show that principal fiber bundles with PNDP manifolds as base manifolds can be constructed.
Study on Friction Behaviors of Soft Materials Considering Sliding-Caused Deformation
Authors: Wei Huixin , Wang Shibin , Li Chuanwei , Wang Zhiyong , Sun Xin , Sun Cuiru , Li Linan , Huo Zongze
Published: August 2023

Accurate and quantitative characterization of friction behavior is of critical importance for material design and manufacture, especially for soft materials. It is mainly because the sliding-caused deformation of soft materials has always been neglected during characterization. Here, a modified model considering sliding-caused deformation was proposed to characterize the friction behavior between a spherical glass indenter and silicon rubber. A novel friction apparatus consisting of a transparent spherical indenter connected with a camera was used in real-time to measure the friction contact status. The contact shape and area during friction were then extracted by a proposed shape function. Experimental results show that shrinking and expanding of the contact area occur simultaneously when a spherical-rigid indenter slides on a soft substrate due to sliding-caused deformation of soft materials. Based on these results, this study built a modified model considering the shape change and the accompanying deformation component of friction, which is an effective method for evaluating the friction behavior of soft materials.
Circular Nanoplate on Elastic Nanolayer under Axisymmetric Loading and Surface Effects
Authors: Tirapat Supakorn , Senjuntichai Teerapong
Published: August 2023

Influence of surface energy on an interaction problem between a flexible circular nanoplate and a nanolayer is examined by using a variational formulation and the GM surface theory. The nanoplate is resting in smooth contact on the supporting nanolayer, and subjected to axisymmetric vertical loadings. The normal traction at the plate–layer interface is written in terms of generalized coordinates obtained from the flexibility equations derived from Green’s function and Hankel integral transform technique. A numerical solution scheme is then implemented into a computer code, and the convergence and accuracy of the proposed solution are verified with existing solutions. A set of numerical solutions is illustrated to present an impact of the surface energy effects on this interaction problem. Both deflection and bending moment of the nanoplate show a considerable dependence on the relative plate stiffness and the surface material properties, and demonstrate the size-dependent behaviors.
Predicting the Fracture Propensity of Amorphous Silica Using Molecular Dynamics Simulations and Machine Learning
Authors: Liu Jiahao , Yeo Jingjie
Published: August 2023

Amorphous silica (a-SiO2) is a widely used inorganic material. Interestingly, the relationship between the local atomic structures of a-SiO2 and their effects on ductility and fracture is seldom explored. Here, we combine large-scale molecular dynamics simulations and machine learning methods to examine the molecular deformations and fracture mechanisms of a-SiO2. By quenching at high pressures, we demonstrate that densifying a-SiO2 increases the ductility and toughness. Through theoretical analysis and simulation results, we find that changes in local bonding topologies greatly facilitate energy dissipation during plastic deformation, particularly if the coordination numbers decrease. The appearance of fracture can then be accurately located based on the spatial distribution of the atoms. We further observe that the static unstrained structure encodes the propensity for local atomic coordination to change during applied strain, hence a distinct connection can be made between the initial atomic configurations before loading and the final far-from-equilibrium atomic configurations upon fracture. These results are essential for understanding how atomic arrangements strongly influence the mechanical properties and structural features in amorphous solids and will be useful in atomistic design of functional materials.
A Size-Dependent Viscoelastic Model for Microbars with Variable Cross-Section
Authors: Mojahedi Mahdi , Rahi Abbas
Published: August 2023

This paper presents a model for microbars with variable cross-sections using the Kelvin–Voigt model for viscoelastic material, accounting for size-dependent effects based on strain gradient theory. The size-dependent dynamic equations for the rod, which consider the variable cross-sectional area, are obtained through the extended Hamilton’s principle. These equations are then reduced in order using the Galerkin method and solved in the steady state using the harmonic response form and the algebra of complex numbers. To solve the equations from the transient state to the steady state, a combined method is implemented using the Grünwald–Letnikov derivative technique and the Newmark method. Furthermore, a model and analysis based on the finite element method are presented to validate the results. In the results section, various factors such as size-dependent effects, the order of the fractional derivative, the amount of the viscoelastic coefficient, and the shape of the section area are examined through the time history graph, frequency response, and maximum displacement in terms of force. The results demonstrate that the transient response converges to the stable response after a certain period of time. Moreover, it is observed that decreasing the order of the fractional derivative in the pre-resonance range leads to a decrease in response sensitivity, while in the resonance frequency range, the sensitivity increases with the increase in order.
Free Vibration Parametric Study of a Double Lap Joint Using the Radial Point Interpolation Method
Authors: Ramalho Luís D. C. , Sánchez-Arce Isidro J. , Gonçalves Diogo C. , Campilho Raul D. S. G. , Belinha Jorge
Published: August 2023

Adhesive joints are an increasingly important joining method, in part due to usually being lighter than the alternatives, which is very important in the search for more energy efficient transportation. However, the amount of studies focused on the free-vibration behavior of adhesive joints is currently very limited. Since this knowledge is important, to ensure that a joint is working outside its natural frequencies, this work sets out to perform a parametric study of a Double Lap Joint (DLJ) using the Radial Point Interpolation Method (RPIM), a meshless method. Using the RPIM in the free vibration of adhesive joints is the next step for this numerical method, after using it in the static analysis of adhesive joints. Considering that this is one of the first uses of this method in this type of problem it is also necessary to validate it. This task was performed in this work by comparing it with the Finite Element Method (FEM), which is the standard numerical method for this type of problem. The validation was successful, showing very small differences between the two numerical methods. The parametric study should aid future adhesive joint designers to develop safer joint. It showed that changes to the adhesive produce diminutive changes to the natural frequencies of the joints. On the other hand, changes to the adherents change the natural frequencies significantly. The overlap length had different effects on the different modes.
Molecular Modification of AgNPs Synthetic Protein and Characterization of Synthetic AgNPs
Authors: Chai Tong , Song Yang Ping , Zhang Sheng Tao , Yan Fu Wei , Pan Gong Ying , Liu Pei , Wang Shi Yan , li Xiang Qian
Published: August 2023

Nanosilver (AgNPs) exhibit a wide range of potential uses in the optical, antibacterial, and catalytic fields, and biologically produced AgNPs have a number of benefits. Our lab earlier identified the Lysinibacillus sphaericus protein NA33, which is involved in the synthesis of AgNPs. Nevertheless, NA33 produced AgNPs with poor dispersion, a high particle size, and low efficiency. In order to address these difficulties, we successfully produced SNA15, a highly effective AgNPs recombinant protein, was produced after molecular modification of NA33. SNA15 demonstrated good stability, with a yield of 87 mg SNA15 isolated from per liter of Escherichia coli fermentation broth. No apparent precipitation was observed after 7–5 days longer than the original protein—of storage in a 4[Formula: see text]C refrigerator. The generated AgNPs by SNA15, had particle sizes ranging from 3[Formula: see text]nm to 20[Formula: see text]nm, which were smaller than the original synthesized AgNPs of 30–50[Formula: see text]nm by NA33 and demonstrated spectrum antibacterial activity. There will be many opportunities for application in the medical and healthcare industries.
On the local metric dimension of generalized wheel graph
Authors: Lal Sohan , Bhat Vijay Kumar
Published: August 2023

Metric dimension and local metric dimension are distance-based tools that find their applications in robot navigation, combinatorial optimization, pattern recognition, image processing, integer programming, and many more. A study based on the selection of the minimum number of vertices in a graph that will separate all the neighboring vertices in terms of distance between the vertices is given by the local metric basis problem. It is well known that the problem of finding the local metric basis of a graph is NP-complete. In this paper, the local metric dimension of double wheel graph [Formula: see text], generalized wheel graph [Formula: see text], and closed helm graph [Formula: see text] had been computed. It has been found that these graphs have unbounded local metric dimensions.
Characterization of rings with genus two prime ideal sum graphs
Authors: Mathil Praveen , Kumar Jitender
Published: August 2023

Let [Formula: see text] be a commutative ring with unity. The prime ideal sum graph of the ring [Formula: see text] is a simple undirected graph whose vertex set is the set of nonzero proper ideals of [Formula: see text] and two distinct vertices [Formula: see text] and [Formula: see text] are adjacent if and only if [Formula: see text] is a prime ideal of [Formula: see text]. In this paper, we characterize all the finite non-local commutative rings whose prime ideal sum graph is of genus [Formula: see text].
Preparation and properties of Y, Mn-doped LMO solid electrolyte for IT-SOFCs
Authors: Yang Jie , Dong Li , Shao Lingbo , Wei Qing , Qin Guangchao , Tian Changan
Published: August 2023

La2Mo2O9 doped with cheap metal cations can further increase their conductivity. The transition metal element Mn and the rare-earth element Y co-doped La2Mo2O9-based electrolyte was used, and the sintered ceramic body La[Formula: see text]Y[Formula: see text]Mo [Formula: see text][Formula: see text]Mn[Formula: see text]O [Formula: see text][Formula: see text]([Formula: see text]= 0[Formula: see text]0.4) was prepared by the sol-gel method, sintering at 950°C. The results show that the samples can suppress the phase transition and retain the [Formula: see text]-phase of the structure of La2Mo2O9, due to doping, and it is a single pure phase, which has good sintering performance. Among them, La[Formula: see text]Y [Formula: see text]Mo[Formula: see text]Mn[Formula: see text]O[Formula: see text] reached the maximum ionic conductivity of 0.0292 S⋅cm[Formula: see text] at 800°C, and Ea is 0.425 eV, which can become a solid electrolyte material of IT-SOFC.
Preparation of Ag/SAPO-34 zeolite photocatalyst
Authors: García-Estrada R. , Hernández-Palomares A. , Maldonado Yadira G. , Manriquez J. , Ayala F. Espejel
Published: August 2023

In this work, the thermal stability of SAPO-34 was studied in order to propose a new experimental route to prepare a metal-loaded catalyst. In the literature, the crystalline collapse of SAPO-34 structure has been reported when these zeolites were exposed to thermal treatment. Preparation and characterization of Ag/SAPO-34 catalyst was realized by the initial incorporation of Ag instead of post-charging of this metal into the zeolite. Hydrothermal method was implemented followed by thermal treatment. Scanning electron microscopy, X-ray Diffraction, UV-Visible spectroscopy and Fourier transform-infrared spectroscopy techniques were employed in order to demonstrate the preparation of catalyst from the herein proposed method. These analyses were carried out to determine the characteristics of Ag/SAPO-34 structure, where Ag was impregnated during the hydrothermal synthesis of the zeolite followed by two different methods to reduce the Ag ions. Results showed that the sample of Ag/SAPO-34 reduced with hydrogen has activity in the visible region. Although the Ag/SAPO-34 was not tested for degrading a contaminant, this work showed a procedure to obtain a photocatalyst useful in the visible region opening the possibility for replacing TiO2 photocatalyst in wastewater treatment.
Locating fair domination in graphs
Authors: Swaminathan V. , Sundareswaran R. , Muthusubramanian L.
Published: August 2023

Graphs considered here are simple, finite and undirected. A graph is denoted by [Formula: see text] and its vertex set by [Formula: see text] and edge set by [Formula: see text]. Many researchers were attracted by two concepts introduced in [P. J. Slater, Domination and location in acyclic graphs, Networks 17 (1987) 55–64; P. J. Slater, Dominating and reference sets in graphs, J. Math. Phys. Sci. 22 (1988) 445–455; Y. Caro, A. Hansberg and M. Henning, Fair domination in graphs, Discrete Math. 312 (2012) 2905–2914]. One is locating domination and the other is fair domination. A subset [Formula: see text] of [Formula: see text] is called a locating dominating set of [Formula: see text] if for any [Formula: see text] and both sets are non-empty. [Formula: see text] is called a fair dominating set of [Formula: see text] for any [Formula: see text]. In this paper, both properties are combined and locating fair domination is studied.
How Robust are Empirical Factor Models to the Choice of Breakpoints?
Authors: Hollstein Fabian , Prokopczuk Marcel , Voigts Victoria
Published: August 2023

We comprehensively investigate the robustness of well-known factor models to altered factor formation breakpoints. Deviating from the standard 30th and 70th percentile selection, we use an extensive set of anomaly test portfolios to uncover two main findings: First, there is a trade-off between specification and diversification. More centered breakpoints tend to result in less (idiosyncratic) risk. More extreme sorts lead to greater exposure to the underlying anomalies and thus to higher average returns. Second, the models are robust to varying degrees. Hou et al.’s model [2015, Digesting Anomalies: An Investment Approach, Review of Financial Studies 28, 650–705] is much more sensitive to changes in breakpoints than the Fama–French models.
A study on dynamic characteristics of the flutter for three-layer plates and shells flown around by a gas flow
Authors: Khudayarov B. A. , Turaev F. , Kar Vishesh R. , Verlan A. A.
Published: August 2023

The nonlinear flutter of viscoelastic three-layer plates and shallow shells with a structure asymmetrical in thickness, flown around by a supersonic gas flow is studied in this paper. Mathematical models of problems on the flutter of viscoelastic three-layer plates, cylindrical panels, and shells with a structure asymmetrical in thickness, flown around by a supersonic gas flow are developed. The flutter of viscoelastic three-layer plates is studied in linear and nonlinear formulations. The critical flutter velocities of elongated plates are compared with the results obtained in previously published studies, where the solutions were obtained in an elastic formulation. The flutter of viscoelastic three-layer plates, cylindrical panels with a rigid filler that resists transverse shear, flown from the outside by a supersonic flow, was studied. It is shown that an increase in the geometric parameter characterizing the flexural rigidity of the bearing layers of three-layer structures leads to an increase in the flutter velocity by 25–40%.
Comparison of molecular properties and docking exploration of ternary organic compounds of 2, 4-Di-substituent-aniline calculated by DFT method
Authors: Selvam L. Antony , Raj M. Victor Antony , Ajith P. , Muthu S. Sappani , Raja M.
Published: August 2023

Investigating the molecular structure, vibration methods, nonlinear optical, electronic and thermo dynamical properties of 2, 4-dichloroaniline (2, 4DCA), 2, 4-difluoroaniline (2, 4DFA) and 2, 4-diiodoaniline (2, 4DIA) gives comparable hypothetical properties to decide a desired material. Density Functional Theories (DFTs) have the basic guidelines to affect the Schrödinger equation for several body systems. Comparison is drawn among theoretical properties like stability and charge delocalization of the molecules which are studied by Natural Bond Orbital (NBO) analysis, Nonlinear Optical (NLO) behavior in terms of first-order hyperpolarizability, Molecular Electrostatic Potential (MEP) and dipole moment of title compounds. The chance of the title atoms being bio-active hypothetically incontestable by the electrophilicity index prompts additional property studies for the chosen compounds. The title molecules are found to suit well with L – glutamate oxidase inhibitor utilizing molecular docking techniques. The outcomes of the chosen organic alkane series are obtained utilizing higher basis set (6-311++G (d, 2p)) to realize results.
Defect formation energies of Ag- and Sr-doped 3C-SiC: A first-principles study
Authors: Sholihun Sholihun , Bagariang Hillery Sucihati , Absor Moh. Adhib Ulil , Andiwijayakusuma Dinan
Published: August 2023

In this study, we conduct calculations of Ag- and Sr-doped in 3C-SiC using density-functional. To model defective systems, we dope Ag and Sr atoms in substitutional and interstitial sites. We use a supercell model consisting of 64 atoms and relax all atoms so that the atomic forces are less than [Formula: see text][Formula: see text]eV/Å. Then, we calculate the defect formation energies for each system. The calculated defect formation energies are 5.67[Formula: see text]eV and 7.77[Formula: see text]eV for substitutional Ag and Sr, respectively. In the case of the interstitial sites, the lowest defect formation energies are 10.36[Formula: see text]eV (Ag) and 14.63[Formula: see text]eV (Sr). We conclude that Ag and Sr are energetically favorable to be trapped at the substitutional site. Furthermore, the substitutional configuration of Ag is more stable than that of Sr. We check the converged value of the defect formation energies using a 216-site supercell and find that the energy difference is only 0.21[Formula: see text]eV. Thus, the 64-atom supercell is reliable for the calculations.
Dynamic Behavior and Ligand Binding Properties of the Wild Type Deoxycytidine Kinase and its Characterized Gemcitabine-Resistant Variant: A Bioinformatics and Computational Study
Authors: Rahmati Yasmin , Khalifeh Khosrow , Heshmati Emran
Published: August 2023

The main challenge in using gemcitabine, a nucleoside analogue anti-cancer, includes resistance of some patients to this compound due to the genetic mutations on deoxycytidine kinase (dCK) that are found in a fraction of the human population. Here, we investigated the dynamics behavior and ligand binding properties of the wild type (WT) dCK and its characterized double mutant using a combination of bioinformatics tools and molecular dynamics (MD) simulation studies. Root-mean-square deviation (RMSD) values of the WT and mutant enzyme in complex with both ligands (deoxycytidine/gemcitabine) demonstrated that the WT enzyme forms a more stable complex with gemcitabine, as compared with its natural ligand (deoxycytidine). However, the stability of the double mutant-deoxycytidine complex is greater, when compared with gemcitabine. It was also found that Arg131 as a critical residue can affect the binding pattern of the enzyme to ligands in a manner that the WT enzyme can interact with both ligands, while, the mutant enzyme cannot establish efficient interaction with gemcitabine, and shows high affinity to deoxycytidine. These data together indicate that gemcitabine can interact with the WT enzyme in a competitive manner, while double mutant can be considered as a resistant variant against gemcitabine.
Toward Best Practices for Training Multilingual Dense Retrieval Models
Authors: Zhang Xinyu , Ogueji Kelechi , Ma Xueguang , Lin Jimmy
Published: August 2023

Dense retrieval models using a transformer-based bi-encoder architecture have emerged as an active area of research. In this article, we focus on the task of monolingual retrieval in a variety of typologically diverse languages using such an architecture. Although recent work with multilingual transformers demonstrates that they exhibit strong cross-lingual generalization capabilities, there remain many open research questions, which we tackle here. Our study is organized as a “best practices” guide for training multilingual dense retrieval models, broken down into three main scenarios: when a multilingual transformer is available, but training data in the form of relevance judgments are not available in the language and domain of interest (“have model, no data”); when both models and training data are available (“have model and data”); and when training data are available but not models (“have data, no model”). In considering these scenarios, we gain a better understanding of the role of multi-stage fine-tuning, the strength of cross-lingual transfer under various conditions, the usefulness of out-of-language data, and the advantages of multilingual vs. monolingual transformers. Our recommendations offer a guide for practitioners building search applications, particularly for low-resource languages, and while our work leaves open a number of research questions, we provide a solid foundation for future work.
EchoSensor: Fine-grained Ultrasonic Sensing for Smart Home Intrusion Detection
Authors: Lian Jie , Du Changlai , Lou Jiadong , Chen Li , Yuan Xu
Published: August 2023

This article presents the design and implementation of a novel intrusion detection system, called EchoSensor, which leverages speakers and microphones in smart home devices to capture human gait patterns for individual identification. EchoSensor harnesses the speaker to send inaudible acoustic signals (around 20 kHz) and utilizes the microphone to capture the reflected signals. As the reflected signals have unique variations in the Doppler shift respective to the gaits of different people, EchoSensor is able to profile human gait patterns from the generated spectrograms. To mine the gait information, we first propose a two-stage interference cancellation scheme to remove the background noise and environmental interference, followed by a new method to detect the starting point of walking and estimate the gait cycle time. We then perform the fine-grained analysis of the spectrograms to extract a series of features. In the end, machine learning is employed to construct an identifier for individual recognition. We implement the EchoSensor system and deploy it under different household environments to conduct intrusion detection tasks. Extensive experimental results have demonstrated that EchoSensor can achieve the averaged Intruder Gait Detection Rate (IDR) and True Family Member Gait Detection Rate (TFR) of 92.7% and 91.9%, respectively.
Preliminary Assessment of Reference Region Quantification and Reduced Scanning Times for [18F]SynVesT-1 PET in Parkinson’s Disease
Authors: Smart Kelly , Uribe Carme , Desmond Kimberly L. , Martin Sarah L. , Vasdev Neil , Strafella Antonio P.
Published: August 2023

Synaptic density in the central nervous system can be measured in vivo using PET with [18F]SynVesT-1. While [18F]SynVesT-1 has been proven to be a powerful radiopharmaceutical for PET imaging of neurodegenerative disorders such as Parkinson’s disease (PD), its currently validated acquisition and quantification protocols are invasive and technically challenging in these populations due to the arterial sampling and relatively long scanning times. The objectives of this work were to evaluate a noninvasive (reference tissue) quantification method for [18F]SynVesT-1 in PD patients and to determine the minimum scan time necessary for accurate quantification. [18F]SynVesT-1 PET scans were acquired in 5 patients with PD and 3 healthy control subjects for 120 min with arterial blood sampling. Quantification was performed using the one-tissue compartment model (1TCM) with arterial input function, as well as with the simplified reference tissue model (SRTM) to estimate binding potential ([Formula: see text]) using centrum semiovale (CS) as a reference region. The SRTM2 method was used with [Formula: see text] fixed to either a sample average value (0.037 min-1) or a value estimated first through coupled fitting across regions for each participant. Direct SRTM estimation and the Logan reference region graphical method were also evaluated. There were no significant group differences in CS volume, radiotracer uptake, or efflux ([Formula: see text]). Each fitting method produced [Formula: see text] estimates in close agreement with those derived from the 1TCM (subject [Formula: see text], [Formula: see text]), with no difference in bias between the control and PD groups. With SRTM2, [Formula: see text] estimates from truncated scan data as short as 80 min produced values in excellent agreement with the data from the full 120 min scans ([Formula: see text]). While these are preliminary results from a small sample of patients with PD ([Formula: see text]), this work suggests that accurate synaptic density quantification may be performed without blood sampling and with scan time under 90 minutes. If further validated, these simplified procedures for [18F]SynVesT-1 PET quantification can facilitate its application as a clinical research imaging technology and allow for larger study samples and include a broader scope of patients including those with neurodegenerative diseases.
Analysis of Groundwater Quality in the Coastal Aquifer of the Effutu Municipality, Ghana
Authors: Kyeremeh Sender , Adu-Boahen Kofi , Obeng Addai Millicent
Published: August 2023

The study sought to assess the suitability of groundwater for domestic and drinking purposes in the Effutu Municipality of Ghana. The paper employed laboratory protocols to analyse the water quality parameters’ concentrations for groundwater samples collected from wells. Descriptive statistical analysis was used to analyse the data and the concentrations of parameters compared with the World Health Organisation’s (WHO) permissible limits. Principal component analysis using the varimax rotation was employed to explore the main parameters which express groundwater quality in the municipality. Water quality index employing the weighted arithmetic method was also used to score groundwater suitability for domestic and drinking purposes. The study found that the main parameters determining groundwater quality in the Effutu Municipality are conductivity, total dissolved solids (TDS), salinity, hardness, chloride, calcium, magnesium, and sodium. Except for conductivity, manganese, TDS, total hardness, and calcium, the average concentrations for all studied water quality parameters were within limits proposed by WHO. The study further revealed that 48.15%, 44.44%, and 7.41% of the groundwater had excellent, good, and poor water quality indices, respectively. The investigation so advances that the groundwater resources of the Effutu Municipality are suitable for domestic purposes. Despite this, we recommend that abstracted groundwater should be treated by prioritizing the water quality parameters.
Growth and Physiological Performance in Growth Phenotypes of the Carpet Shell Clam (Ruditapes decussatus) Fed Diets of Variable Lipid/Carbohydrate Ratios
Authors: Arranz Kristina , Urrutxurtu Iñaki , Martínez-Patiño Dorotea , Navarro Enrique
Published: August 2023

Mixed suspensions of phytoplankton and yeast cells in different proportions were designed to achieve diets with a range of variation (0.6–2.2) in the ratio of lipid to carbohydrate while maintaining protein content constant. Juvenile specimens of the carpet shell clam (Ruditapes decussatus) from two segregated growth phenotypes (fast and slow growers) were food conditioned and the physiological components of the energy balance were determined with these different diet compositions in order to assess the combined effects of endogenous and nutritional factors on growth performance. Conditioning to lipid-rich diets increased growth rate relative to conditioning to carbohydrate-rich diets and resulted in higher scope for growth values in both growth groups. These dietary effects are mainly driven by differences in the absorption efficiency (AE) found between clams fed different food compositions, although the present results do not allow to ascertain whether the reduced AE recorded with the carbohydrate-rich diets results from reduced digestibility of yeasts cells due to structural restrictions or either reflects the digestive imbalance of lipids associated to higher production of metabolic fecal losses. Greater phenotypic plasticity was seen to enable the fast-growing clams fed a carbohydrate-rich diet to overcome the above digestive limitations through an overfeeding response; however, the resource to such kind of physiological mechanism appeared limited by the nutritional conditions (energetic status) prevailing during the conditioning phase.
Novel MCDM Methods and Similarity Measures for Extended Fuzzy Parameterized Possibility Fuzzy Soft Information with Their Applications
Authors: Ali Ghous
Published: August 2023

Complicated uncertainties arising in the multicriteria decision-making (MCDM) problems that show distinct possible satisfaction of the subjects to favorable and equally unfavorable parameters with varying preferences require reliable decision-making under comprehensive mathematical tools. For such complications, this work aims to develop a novel fuzzy parameterized possibility fuzzy bipolar soft set model as a fuzzy parameterized bipolar soft extension of possibility fuzzy sets. The proposed model efficiently depicts the possibility of fuzzy belongingness of alternatives under fuzzy parameterized bipolar parameters (or attributes). The respective operations and properties such as subset, complement, union, and intersection are presented along with their numerical illustrations. Two logical operations namely “AND” and “OR” operations followed by two corresponding MCDM algorithms have been developed and implemented. Furthermore, similarity measures between fuzzy parameterized possibility fuzzy bipolar soft sets are proposed and applied to an agricultural land selection scenario. Finally, a comparative analysis of current work with existing ones is discussed in detail to show the eminent quality of the proposed work over them.
(Generalized) Incidence and Laplacian-Like Energies
Authors: Maden A. Dilek , Rahim Mohammad Tariq
Published: August 2023

In this study, for graph

Γ

with

r

connected components (also for connected nonbipartite and connected bipartite graphs) and a real number

ε

≠
0,1

, we found generalized and improved bounds for the sum of

ε

-th powers of Laplacian and signless Laplacian eigenvalues of

Γ

. Consequently, we also generalized and improved results on incidence energy

I
E

and Laplacian energy-like invariant

L
E
L

.
Psychogenic Nonepileptic Seizures (PNES) in the Setting of Trauma and Schizophrenia
Authors: Chohan Sikander , Chohan Ali , Asif Muhamid
Published: August 2023

Psychogenic nonepileptic seizures (PNES) are nonepileptic events characterized by seizure-like manifestations without abnormal electrical activity in the brain. Our case report illustrates the diagnostic journey of a young female with a history of schizophrenia and childhood trauma who had an initial misdiagnosis of epilepsy. The etiology of PNES is complex. Major depressive disorder and generalized anxiety disorder are common comorbid conditions in these patients. Additionally, previous trauma has been linked as a predisposing factor for the development of PNES. Psychotic disorders, specifically schizophrenia, have only recently been associated with PNES. We explore this relationship in depth, while also underscoring the diagnostic and treatment challenges of PNES that clinicians must remain aware of.
Drying Kinetics, Effective Moisture Diffusivity, and Activation Energy of Osmotic Pretreated Hot-Air-Dried Paneer Cubes
Authors: Arulkumar M. , Pandian N. Karpoora Sundara , Murugan B. , Nambi V. Eyarkai , Sivaranjani S. , Baskaran D. , Pugazhenthi T. R. , Kishore S. Ganga , Pandiselvam R.
Published: August 2023

Paneer is a heat-acid-coagulated dairy product, and it has a very low shelf life due to its higher moisture content of about more than 50% (w.b). Drying is the best option to reduce moisture, but it takes time and affects the nature of the product. Here, osmotic dehydration (OD) is applied as pretreatment prior to drying to preserve the color and textural changes and reduce the drying time. Commercial NaCl was chosen as osmotic agent. The paneer samples were taken as (

2
 
cm
×
2
 
cm
×
2
 
cm

) cubes and pretreated with NaCl, viz., 6%, 12%, 22%

w
/
v

, and surface treatment. The pretreated paneer was dried at 50, 55, and 60°C in a hot-air dryer with constant air velocity of 0.25 m/s. The equilibrium moisture content level was higher in osmotic treated samples compared to the control sample with range between 12.46 and 16.64% (w.b). The osmotic pretreated sample had shortened drying time compared to the control sample. Effective moisture diffusivity and activation energy were calculated, and the osmotic pretreatment impacted positively on it. The drying parameters were fitted with models and found that the Midilli model was (

R

2

>
0.99

) best fit. The osmotic pretreated samples at 50°C drying temperature show (

P
≤
0.01

) better results in color, texture, and sensory profile of dried paneer, while pretreatment is not effective at 55 and 60°C drying temperatures. Except for the carbohydrate content, osmotic pretreated samples retain more fat and protein after the drying process. As a result, it can be concluded that osmotic pretreatment reduces the drying time and retains color, texture, and nutritional characteristics of dried paneer, especially at 50°C drying temperature.
Fuzzy Computational Analysis of Flower Graph via Fuzzy Topological Indices
Authors: Tabraiz Ali , Mufti Zeeshan Saleem , Aslam Muhammad Nauman , Saleem Naeem , Hosseinzadeh Hasan
Published: August 2023

Fuzzy graphs have many applications not only in mathematics but also in any field of science where the concept of fuzziness is involved. The notion of fuzziness is suitable in any environment, which favor to predicts the problem and solve this problem in a decent way. As compared to crisp theory, fuzzy graphs are a more beneficial and powerful tool to get better accuracy and precision due to their fuzziness property. A topological index is a numerical value which characterizes the properties of the graph. Topological indices were basically developed for chemical structures, but these are also used for general graphs as well. In chemical graph theory, topological indices are used to extract the chemical properties of the graphs. These indices are also well studied in fuzzy environment. Applications of fuzzy graphs are found in medicines, telecommunications, traffic light control, and many more. Our aim is to find these fuzzy topological indices for flower graphs to strengthen the concepts of fuzziness in general graphs. In this paper, some novel results for

f

m
×
r

flower graphs are achieved.
Exact Controllability for a Class of Fractional Semilinear System of Order
1
<
q
<
2
with Instantaneous and Noninstantaneous Impulses
Authors: Chu Yunhao , Liu Yansheng
Published: August 2023

This paper is mainly concerned with the existence of mild solutions and exact controllability for a class of fractional semilinear system of order

q
∈

1
,
2

with instantaneous and noninstantaneous impulses. First, combining the Kuratowski measure of noncompactness and the Mönch fixed point theorem, we investigated the existence result for the considered system. It is remarkable that our assumptions for impulses and the nonlinear term are weaker than the Lipschitz conditions. Next, on this basis, the exact controllability for the considered system is determined. In the end, an example is provided to support the main findings.
The Role of Anger Expression in Unmet Expectations and Depressive Symptoms
Authors: Kaźmierczak Izabela , Zajenkowska Anna , Rajchert Joanna , Jakubowska Adrianna , Abramiuk-Szyszko Agnieszka
Published: August 2023

Background and Objectives. Depression is associated with unmet relational expectations, but little is known about how both partners experience meeting expectations and how this relates to anger expression and depressive symptoms. The aim of study 1 was to explore the role of anger expression in explaining the link between relational expectations and depression using the actor-partner interdependence mediation model. Additionally, social expectations beyond romantic relationships are associated with societal demands. Study 2 is aimed at investigating the role of anger expression in the relationship between internalized social demands (i.e., outer self-awareness) and depressive symptoms. Design and Methods. Online self-report data were collected from

N
=
194

romantic partners (97 dyads) in study 1 and

N
=
407

individuals in study 2. Results. In study 1, unmet expectations were associated with both actor and partner effects on depressive symptoms and anger expression. In particular, inwardly directed anger was linked to depressive symptoms in the case of the individual experiencing unmet expectations, whereas outwardly directed anger predicted such symptoms in the case of the partner’s unmet expectations. In study 2, there was a positive association between outer self-awareness and directing anger inwards and outwards, which was linked to higher depressive symptoms. Furthermore, while directing anger inwards seemed to be a universal mechanism underlying the association, the interpersonal mechanism (i.e., directing anger outwards) was found to be dependent on gender.
Global Trend on Machine Learning in Helicobacter within One Decade: A Scientometric Study
Authors: Eslami Omid , Nakhaie Mohsen , Rezaei Zadeh Rukerd Mohammad , Azimi Maryam , Shahabi Ellahe , Honarmand Amin , Khazaneha Mahdiyeh
Published: August 2023

Purpose. This study aims to create a science map, provide structural analysis, investigate evolution, and identify new trends in Helicobacter pylori (H. pylori) research articles. Methods. All Helicobacter publications were gathered from the Web of Science (WoS) database from August 2010 to 2021. The data were required for bibliometric analysis. The bibliometric analysis was performed with Bibliometrix R Tool. Bibliometric data were analyzed using the Bibliometrix Biblioshiny R-package software. Results. A total of 17,413 articles were reviewed and analyzed, with descriptive characteristics of the H. pylori literature included. In journals, 21,102 keywords plus and 20,490 author keywords were reported. These articles were also written by 56,106 different authors, with 262 being single-author articles. Most authors’ abstracts, titles, and keywords included “Helicobacter-pylori.” Since 2010, the total number of H. pylori-related publications has been decreasing. Gut, PLOS ONE, and Gastroenterology are the most influential H. pylori journals, according to source impact. China, the United States, and Japan are the countries with most affiliations and subjects. In addition, Seoul National University has published the most articles about H. pylori. According to the cloud word plot, the authors’ most frequently used keywords are gastric cancer (GC), H. pylori, gastritis, eradication, and inflammation. “Helicobacter pylori” and “infection” have the steepest slopes in terms of the upward trend of words used in articles from 2010 to 2021. Subjects such as GC, intestinal metaplasia, epidemiology, peptic ulcer, eradication, and clarithromycin are included in the diagram’s motor theme section, according to strategic diagrams. According to the thematic evolution map, topics such as Helicobacter pylori infection, B-cell lymphoma, CagA, Helicobacter pylori, and infection were largely discussed between 2010 and 2015. From 2016 to 2021, the top topics covered included Helicobacter pylori, H. pylori infection, and infection.
The Association between Serum Vitamin D Levels and Male Fertility: A Systematic Review and Meta-Analysis
Authors: Yan Teng-Fei , Qi Ju-Ju , Li Li-Xin , Li Feng
Published: August 2023

Objective. The probable relationship between serum vitamin D levels and male fertility is being increasingly investigated; however, the findings have been controversial. This review dealt with assessing the relationship between serum vitamin D levels and male fertility and sperm quality by executing systematic review and meta-analysis of the published data. Methods. The meta-analysis was executed as per the PRISMA 2020 statement. The protocol was registered with PROSPERO (CRD42022327583). Relevant literature was retrieved by searching online databases, including Embase, Scopus, PubMed, Web of Science, and the Cochrane Library, up to December 1st, 2022. Additionally, Google Scholar was searched to assess relevant articles. To ensure a more comprehensive review, unpublished articles, gray literature, and references of suitable articles were also assessed to find additional eligible publications. The articles that satisfied the inclusion criteria were evaluated for their quality using the Joanna Briggs Institute Critical Appraisal Tool. Meta-analysis was conducted through STATA 12. Results. Twenty-four articles, comprising 7,345 participants in total, were chosen for the systematic review and meta-analysis. The resulting data indicated that serum vitamin D levels infertile males were remarkably elevated compared with that in infertile males (weighted mean difference (WMD) = 7.06, 95% confidence interval (95% CI) = 2.51–11.62,

P
=
0.002

), and its deficiency (<20 ng/mL or 50 nmol/L) significantly reduced sperm concentration (WMD = 8.54, 95% CI = 4.01–13.06,

P
<
0.001

), total sperm count (WMD = 14.43, 95% CI = 1.30–27.55,

P
=
0.031

), sperm motility (WMD = 6.40, 95% CI = 3.15–9.64,

P
<
0.001

), sperm progressive motility (WMD = 5.00, 95% CI 1.09–8.92,

P
=
0.012

), and altered sperm morphology (WMD = 0.74, 95% CI = 0.20–1.27,

P
=
0.007

). The data analysis determined that vitamin D did not remarkably influence sperm volume (WMD = 0.17; 95% CI = −0.00–0.34;

P
=
0.050

). Conclusion. The acquired data implied that serum vitamin D is significantly associated with male fertility and sperm quality. This finding holds crucial implications for patients suffering from male infertility.
Social Cognition in Idiopathic Generalized Epilepsies and Nonlesional Temporal Lobe Epilepsy
Authors: Tallarita Giulia Maria , Ciuffini Roberta , Turner Katherine , Pucci Barbara , Parente Annalisa , Giovagnoli Anna Rita
Published: August 2023

Objectives. Social cognition (SC) is a multifaceted concept involving mental processes to understand, store, and apply information regarding social relationships. Brain lesions in key areas can impair critical components of SC, but seizures and epileptiform discharges could also be associated with deficits in SC. To verify this hypothesis, this study evaluated SC in persons with generalized or focal epilepsy without detectable brain lesion. Materials and Methods. Forty-eight adult persons with idiopathic generalized epilepsy (IGE) or temporal lobe epilepsy without brain lesion (cryptoTLE) and 24 healthy controls were evaluated by means of the Faux Pas Test (FPT), Social Situation Test (SST), Moral/Conventional Distinction Test (MCDT), and Empathy Questionnaire (EQ) which assess theory of mind (ToM), recognition of social behaviors and moral and conventional rules, and empathy. Clinical work-up included information on age at seizure onset, epilepsy duration, seizure symptoms and frequency, demographic characteristics, and the presence of comorbidities. Results. Compared to controls, persons with IGE or cryptoTLE were impaired in the understanding of existent faux pas on the FPT. On the SST, persons with cryptoTLE also showed significant deficits, whereas the IGE persons only were less accurate in recognizing normative behaviors. In cryptoTLE persons, the capacity to recognize cognitive and affective mental states correlated with seizure frequency and age, whereas, in IGE persons, the SST and MCDT scores correlated with schooling and age, respectively. Conclusions. CryptoTLE can cause extensive deficits in ToM and recognition of social situations, whereas IGE is only associated with deficits in fewer domains. Dysfunction of temporolimbic areas could be related to seizure frequency and associated with more severe SC impairment in cryptoTLE. Older age and poor education may be associated with SC deficits in focal or generalized epilepsy.
Import Risk Analysis of the Decapod Iridescent Virus 1 (DIV1) Applied in South Korea: Qualitative Risk Review and Institutional Improvement Plans
Authors: Kang Gyoungsik , Woo Won-Sik , Kim Kyung-Ho , Son Ha-Jeong , Sohn Min-Young , Kim Ju-Won , Park Chan-Il
Published: August 2023

Decapod iridescent virus 1 (DIV1) is a dangerous new virus that causes mortality to shrimp and crayfish. This virus has been reported in China, which is a major exporter of decapods to South Korea and its neighboring countries, Taiwan and Thailand. This virus can be regarded as a pathogen with a high risk of entry into Korea. Therefore, South Korea has been conducting emergency quarantine for DIV1 since 2020, and in this study, an import risk analysis was performed following the World Organization of Animal Health and domestic laws and regulations to present scientific grounds and validity for South Korea’s DIV1 emergency quarantine. Import risk analysis was performed by hazard identification, entry assessment, exposure assessment, and consequence assessment. As a result of the import risk analysis, it was confirmed that the current DIV1 quarantine can significantly reduce the import risk. However, it was also established that the management of prawns and polychaetes intended for animal feed or bait and currently not subjected to quarantine is also required. Additionally, two species of crabs that would meet the criteria for a completely susceptible species and two species of crayfish that required surveillance of the import amount or route of exposure were also identified. In conclusion, these uses and susceptible species were designated as quarantine targets for nonhuman consumption requiring risk management and import sanitary conditions to be performed before export and after import. Finally, alternatives to reduce the cost burden of stakeholders following the introduction of the system were also presented.